/* ===== index ===== */

  :root {
    --bg: #0a0a0a;
    --bg2: #111111;
    --bg3: #161616;
    --surface: #1a1a1a;
    --border: rgba(0,212,255,0.15);
    --accent: #00d4ff;
    --accent2: #0066ff;
    --text: #f0f0f0;
    --text-muted: #888;
    --text-dim: #555;
    --card-bg: rgba(255,255,255,0.03);
    --shadow: 0 8px 40px rgba(0,0,0,0.6);
    --glow: 0 0 30px rgba(0,212,255,0.15);
  }
  [data-theme="light"] {
    --bg: #f5f5f5;
    --bg2: #eeeeee;
    --bg3: #e8e8e8;
    --surface: #ffffff;
    --border: rgba(0,100,200,0.2);
    --accent: #0055cc;
    --accent2: #0033aa;
    --text: #111111;
    --text-muted: #555;
    --text-dim: #999;
    --card-bg: rgba(0,0,0,0.03);
    --shadow: 0 8px 40px rgba(0,0,0,0.1);
    --glow: 0 0 30px rgba(0,85,204,0.1);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Josefin Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
  }

  /* ── NOISE OVERLAY ── */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    height: 70px;
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.4s ease, border-color 0.4s ease;
  }
  [data-theme="light"] nav {
    background: rgba(245,245,245,0.9);
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
  }
  .nav-logo img {
    width: 36px;
    height: 36px;
    object-fit: contain;
  }
  .nav-logo span {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 100;
    font-size: 15px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text);
    transition: color 0.3s;
  }

  .nav-links {
    display: flex;
    gap: 36px;
    align-items: center;
    list-style: none;
  }
  .nav-links a, .nav-links button {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 300;
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: color 0.3s ease;
    position: relative;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; right: 0;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
  }
  .nav-links a:hover { color: var(--text); }
  .nav-links a:hover::after { transform: scaleX(1); }
  .nav-links button:hover { color: var(--accent); }

  .settings-icon {
    width: 18px; height: 18px;
    stroke: var(--text-muted);
    fill: none;
    stroke-width: 1.5;
    transition: stroke 0.3s;
    vertical-align: middle;
  }
  .nav-links button:hover .settings-icon { stroke: var(--accent); }

  /* ── PAGES ── */
  .page {
    display: none;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    min-height: 100vh;
    padding-top: 70px;
    position: relative;
    z-index: 1;
  }
  .page.active {
    display: block;
  }
  .page.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ── HERO ── */
  .hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 70px);
    padding: 60px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .hero-glow {
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,212,255,0.06) 0%, transparent 70%);
    pointer-events: none;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation: pulseGlow 6s ease-in-out infinite;
  }
  @keyframes pulseGlow {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  }

  .hero-logo {
    width: 100px; height: 100px;
    margin-bottom: 32px;
    animation: logoFloat 4s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(0,212,255,0.3));
  }
  @keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }

  .hero-eyebrow {
    font-size: 10px;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
    font-weight: 300;
    animation: fadeUp 0.8s ease 0.2s both;
  }

  .hero-title {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 100;
    font-size: clamp(36px, 6vw, 80px);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    line-height: 1.1;
    color: var(--text);
    animation: fadeUp 0.8s ease 0.4s both;
    margin-bottom: 24px;
  }

  .hero-divider {
    width: 60px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 0 auto 28px;
    animation: fadeUp 0.8s ease 0.6s both;
  }

  .hero-bio {
    max-width: 560px;
    font-size: 14px;
    line-height: 1.9;
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.05em;
    animation: fadeUp 0.8s ease 0.8s both;
    margin-bottom: 48px;
  }

  .hero-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeUp 0.8s ease 1s both;
  }

  .btn {
    font-family: 'Josefin Sans', sans-serif;
    font-size: 10px;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    font-weight: 400;
    padding: 14px 32px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
  }
  .btn-primary {
    background: var(--accent);
    color: #000;
  }
  .btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 30px rgba(0,212,255,0.4);
    transform: translateY(-2px);
  }
  .btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
  }
  .btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
  }
  [data-theme="light"] .btn-primary { color: #fff; background: var(--accent2); }
  [data-theme="light"] .btn-primary:hover { background: var(--accent); }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* ── SECTION ── */
  .section {
    padding: 100px 48px;
    max-width: 1200px;
    margin: 0 auto;
  }

  .section-label {
    font-size: 10px;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 300;
    margin-bottom: 16px;
  }

  .section-title {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 100;
    font-size: clamp(28px, 4vw, 48px);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
    color: var(--text);
  }

  .section-sub {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.05em;
    max-width: 480px;
    line-height: 1.8;
    margin-bottom: 60px;
  }

  /* ── CARDS ── */
  .cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }

  .card {
    background: var(--bg);
    padding: 40px 36px;
    transition: background 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 2px; height: 0;
    background: var(--accent);
    transition: height 0.4s ease;
  }
  .card:hover { background: var(--card-bg); }
  .card:hover::before { height: 100%; }

  .card-tag {
    font-size: 9px;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 400;
    margin-bottom: 16px;
    display: block;
  }
  .card-title {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 300;
    font-size: 18px;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    color: var(--text);
  }
  .card-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
    font-weight: 300;
  }
  .card-arrow {
    position: absolute;
    bottom: 28px; right: 28px;
    font-size: 18px;
    color: var(--text-dim);
    transition: color 0.3s, transform 0.3s;
  }
  .card:hover .card-arrow {
    color: var(--accent);
    transform: translate(4px, -4px);
  }

  /* ── ABOUT PAGE ── */
  .about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding: 120px 48px;
    max-width: 1100px;
    margin: 0 auto;
  }
  .about-image {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .about-logo-wrap {
    width: 260px; height: 260px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: rotateBorder 12s linear infinite;
  }
  .about-logo-wrap::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 50%;
    background: conic-gradient(var(--accent), transparent, var(--accent2), transparent, var(--accent));
    animation: rotateBorder 8s linear infinite;
    z-index: -1;
  }
  @keyframes rotateBorder {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
  }
  .about-logo-wrap img {
    width: 180px; height: 180px;
    object-fit: contain;
    filter: drop-shadow(0 0 20px rgba(0,212,255,0.2));
    animation: rotateBorder 8s linear infinite reverse;
  }
  .about-text .section-sub { margin-bottom: 32px; }
  .about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
  }
  .stat-num {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 100;
    font-size: 36px;
    letter-spacing: 0.1em;
    color: var(--accent);
    display: block;
  }
  .stat-label {
    font-size: 10px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 300;
    margin-top: 4px;
    display: block;
  }

  /* ── SETTINGS PAGE ── */
  .settings-wrap {
    max-width: 640px;
    margin: 0 auto;
    padding: 100px 48px;
  }
  .settings-group {
    margin-top: 48px;
    border: 1px solid var(--border);
  }
  .settings-group-label {
    font-size: 9px;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 16px 28px;
    border-bottom: 1px solid var(--border);
    font-weight: 400;
    background: var(--card-bg);
  }
  .settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
  }
  .settings-row:last-child { border-bottom: none; }
  .settings-row:hover { background: var(--card-bg); }
  .settings-row-label {
    font-size: 12px;
    letter-spacing: 0.1em;
    font-weight: 300;
    color: var(--text);
  }
  .settings-row-desc {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
    letter-spacing: 0.05em;
  }

  /* Theme Toggle */
  .theme-options {
    display: flex;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .theme-btn {
    font-family: 'Josefin Sans', sans-serif;
    font-size: 9px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    font-weight: 400;
    padding: 8px 16px;
    background: var(--bg2);
    color: var(--text-muted);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  .theme-btn.active {
    background: var(--accent);
    color: #000;
  }
  [data-theme="light"] .theme-btn.active { color: #fff; }
  .theme-btn:not(.active):hover {
    background: var(--bg3);
    color: var(--text);
  }

  /* ── FOOTER ── */
  footer {
    border-top: 1px solid var(--border);
    padding: 40px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
  }
  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .footer-brand img { width: 28px; height: 28px; object-fit: contain; }
  .footer-brand span {
    font-size: 10px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-dim);
    font-weight: 300;
  }
  .footer-copy {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    font-weight: 300;
  }

  /* ── HORIZONTAL LINE DECORATIONS ── */
  .line-decoration {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 0;
  }

  /* ── SCROLL REVEAL ── */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  @media (max-width: 768px) {
    nav { padding: 0 24px; }
    .hero { padding: 40px 24px; }
    .section { padding: 60px 24px; }
    .about-layout { grid-template-columns: 1fr; gap: 48px; padding: 80px 24px; }
    .settings-wrap { padding: 60px 24px; }
    footer { flex-direction: column; gap: 16px; text-align: center; padding: 32px 24px; }
    .nav-links { gap: 20px; }
  }

  /* ═══════════════════════════════════════
     MOBILE RESPONSIVE — additions only
     Desktop (≥769px) is unchanged
  ═══════════════════════════════════════ */

  /* Hamburger button */
  .nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-right: -8px;
    flex-shrink: 0;
  }
  .nav-hamburger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--text-muted);
    transition: all 0.3s ease;
    transform-origin: center;
  }
  .nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  @media (max-width: 768px) {
    .nav-hamburger { display: flex; }
    .nav-links {
      display: none;
      position: fixed;
      top: 70px; left: 0; right: 0;
      background: rgba(10,10,10,0.97);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
      flex-direction: column;
      gap: 0;
      list-style: none;
      z-index: 99;
      margin: 0;
      padding: 4px 0 8px;
    }
    [data-theme="light"] .nav-links { background: rgba(245,245,245,0.97); }
    .nav-links.open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a,
    .nav-links button {
      display: flex;
      align-items: center;
      width: 100%;
      padding: 15px 24px;
      font-size: 11px;
      text-align: left;
      border: none;
      background: none;
      cursor: pointer;
    }
    .nav-links a::after { display: none; }
    .settings-icon { margin-right: auto; }
  }

  @media (max-width: 600px) {
    nav { padding: 0 20px; }
    .hero { padding: 28px 20px; }
    .hero-logo { width: 72px; height: 72px; }
    .hero-bio { font-size: 13px; }
    .hero-cta { gap: 12px; }
    .btn { padding: 13px 24px; font-size: 10px; }

    .section { padding: 48px 20px; }
    .section-sub { max-width: 100%; }

    .about-layout { padding: 48px 20px; gap: 36px; }
    .about-logo-wrap { width: 180px; height: 180px; }
    .about-logo-wrap img { width: 130px; height: 130px; }
    .about-stats { gap: 28px; flex-wrap: wrap; }
    .stat-num { font-size: 28px; }

    .settings-wrap { padding: 48px 20px; }
    .settings-row { padding: 18px 20px; }
    .settings-group-label { padding: 14px 20px; }
    .theme-btn { padding: 8px 12px; font-size: 8px; }

    footer { padding: 24px 20px; }

    .cards-grid { grid-template-columns: 1fr; }
  }


/* ===== money_tracker ===== */

:root {
  --bg: #0d0d10;
  --bg2: #13131a;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --gold: #c9a84c;
  --gold-light: #e8c97a;
  --gold-dim: rgba(201,168,76,0.15);
  --green: #4caf7d;
  --red: #e05c5c;
  --blue: #7eb8f7;
  --text: #f0ede8;
  --text-dim: rgba(240,237,232,0.42);
  --text-mid: rgba(240,237,232,0.68);
  --radius: 16px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}
/* LIGHT MODE */
body.light {
  --bg: #f5f3ef;
  --bg2: #eeece7;
  --glass: rgba(0,0,0,0.045);
  --glass-border: rgba(0,0,0,0.1);
  --gold: #8a6a1f;
  --gold-light: #6b4f12;
  --gold-dim: rgba(100,72,14,0.1);
  --text: #1c1a15;
  --text-dim: rgba(28,26,21,0.45);
  --text-mid: rgba(28,26,21,0.68);
}
/* Softer, warmer ambient glow in light mode */
body.light::before {
  background: radial-gradient(ellipse, rgba(160,120,40,0.07) 0%, transparent 65%);
}
body.light::after {
  background: radial-gradient(ellipse, rgba(60,140,90,0.05) 0%, transparent 68%);
}
/* Grand total card — lighter tint */
body.light .grand-total-card {
  background: linear-gradient(135deg, rgba(120,85,20,0.08) 0%, rgba(120,85,20,0.02) 50%, rgba(238,236,231,0.95) 100%);
  border-color: rgba(100,72,14,0.22);
}
body.light .grand-total-card::before {
  background: linear-gradient(90deg, transparent, rgba(100,72,14,0.3), transparent);
}
/* Tabs */
body.light .tabs-bar { border-bottom-color: rgba(0,0,0,0.12); }
body.light .tab-btn::after { background: var(--gold); }
/* Inputs */
body.light .month-input:focus { background: rgba(0,0,0,0.05); color: var(--gold); }
body.light .calc-display { background: rgba(0,0,0,0.05); }
/* GT stats */
body.light .gt-stat { background: rgba(0,0,0,0.03); }
/* Cards */
body.light .stat-card:hover { border-color: rgba(100,72,14,0.2); }
body.light .month-row.editing { background: rgba(100,72,14,0.05); border-color: rgba(100,72,14,0.3); }
/* Settings sidebar */
body.light .settings-sidebar { box-shadow: -6px 0 40px rgba(0,0,0,0.12); }
body.light .settings-close:hover { background: rgba(0,0,0,0.07); }
body.light .theme-option:hover { background: rgba(0,0,0,0.05); }
body.light .theme-option.active { background: rgba(100,72,14,0.09); border-color: rgba(100,72,14,0.3); }

/* SETTINGS BUTTON */
.settings-fab {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  z-index: 400;
  transition: all 0.25s var(--ease);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.settings-fab:hover { color: var(--gold-light); border-color: rgba(201,168,76,0.3); transform: rotate(30deg); }
.settings-fab svg { width: 18px; height: 18px; }

/* SETTINGS SIDEBAR */
.settings-sidebar {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 280px;
  background: var(--bg2);
  border-left: 1px solid var(--glass-border);
  z-index: 450;
  display: flex; flex-direction: column;
  padding: 36px 28px;
  transform: translateX(100%);
  transition: transform 0.32s var(--ease);
  box-shadow: -6px 0 40px rgba(0,0,0,0.35);
}
.settings-sidebar.open { transform: translateX(0); }

.settings-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  z-index: 440;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
.settings-overlay.open { opacity: 1; pointer-events: all; }

.settings-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 36px;
}
.settings-header h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.35rem; font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--gold-light);
}
.settings-close {
  background: none; border: none;
  color: var(--text-dim); cursor: pointer; font-size: 1.1rem;
  width: 28px; height: 28px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.18s;
}
.settings-close:hover { background: rgba(255,255,255,0.07); color: var(--text); }

.settings-section-label {
  font-size: 0.62rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--text-dim);
  margin-bottom: 12px;
}

.theme-options {
  display: flex; flex-direction: column; gap: 8px;
}
.theme-option {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 11px;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.theme-option:hover { border-color: rgba(201,168,76,0.2); background: rgba(255,255,255,0.06); }
.theme-option.active { border-color: rgba(201,168,76,0.4); background: var(--gold-dim); }
.theme-option-icon {
  width: 28px; height: 28px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}
.theme-option-text { display: flex; flex-direction: column; gap: 1px; }
.theme-option-name {
  font-size: 0.82rem; color: var(--text); font-weight: 400;
}
.theme-option-desc {
  font-size: 0.65rem; color: var(--text-dim); letter-spacing: 0.04em;
}
.theme-option.active .theme-option-name { color: var(--gold-light); }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font-family: 'DM Sans', sans-serif; font-weight: 300;
  min-height: 100vh; overflow-x: hidden;
}
body::before {
  content: ''; position: fixed; top: -220px; left: 50%;
  transform: translateX(-50%); width: 1000px; height: 700px;
  background: radial-gradient(ellipse, rgba(201,168,76,0.055) 0%, transparent 68%);
  pointer-events: none; z-index: 0;
}
body::after {
  content: ''; position: fixed; bottom: -80px; right: -80px;
  width: 480px; height: 480px;
  background: radial-gradient(ellipse, rgba(76,175,125,0.035) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}
.page { position: relative; z-index: 1; max-width: 1300px; margin: 0 auto; padding: 0 28px 80px; }

/* HEADER */
header { padding: 48px 0 20px; display: flex; align-items: flex-end; justify-content: space-between; animation: fadeUp 0.7s var(--ease) both; }
.header-title h1 { font-family: 'Cormorant Garamond', serif; font-size: clamp(2.2rem,4.5vw,3.4rem); font-weight: 300; letter-spacing: 0.04em; line-height: 1; }
.header-title h1 span { color: var(--gold); font-style: italic; }
.header-title p { margin-top: 14px; color: var(--text-dim); font-size: 0.78rem; letter-spacing: 0.13em; text-transform: uppercase; }
.save-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-left: 7px; opacity: 0; vertical-align: middle; }
.save-dot.pulse { animation: pulseDot 1.1s var(--ease) forwards; }

/* TABS */
.tabs-bar { display: flex; gap: 2px; margin: 36px 0 0; border-bottom: 1px solid var(--glass-border); animation: fadeUp 0.7s 0.08s var(--ease) both; }
.tab-btn { background: none; border: none; color: var(--text-dim); font-family: 'DM Sans', sans-serif; font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 14px 22px 13px; cursor: pointer; position: relative; transition: color 0.22s var(--ease); white-space: nowrap; }
.tab-btn::after { content: ''; position: absolute; bottom: -1px; left: 14px; right: 14px; height: 1.5px; background: var(--gold); transform: scaleX(0); transition: transform 0.28s var(--ease); border-radius: 2px; }
.tab-btn:hover { color: var(--text-mid); }
.tab-btn.active { color: var(--gold-light); }
.tab-btn.active::after { transform: scaleX(1); }
.tab-panel { display: none; padding-top: 40px; animation: fadeUp 0.45s var(--ease) both; }
.tab-panel.active { display: block; }

/* GRAND TOTAL */
.grand-total-card { background: linear-gradient(135deg,rgba(201,168,76,0.11) 0%,rgba(201,168,76,0.03) 50%,rgba(18,18,26,0.85) 100%); border: 1px solid rgba(201,168,76,0.28); border-radius: 24px; padding: 44px 52px; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-bottom: 28px; }
.grand-total-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg,transparent,var(--gold-light),transparent); }
.gt-left { display: flex; flex-direction: column; gap: 10px; }
.gt-label { font-family: 'Cormorant Garamond', serif; font-size: clamp(1rem,2.5vw,1.4rem); font-weight: 300; color: var(--gold-light); letter-spacing: 0.18em; text-transform: uppercase; }
.gt-amount { font-family: 'Cormorant Garamond', serif; font-size: clamp(3rem,7vw,5.5rem); font-weight: 600; letter-spacing: -0.015em; line-height: 1; color: var(--text); transition: color 0.4s; }
.gt-amount.positive { color: var(--green); }
.gt-amount.negative { color: var(--red); }
.gt-breakdown { display: flex; flex-direction: column; gap: 10px; min-width: 210px; }
.gt-stat { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 9px 15px; background: rgba(255,255,255,0.03); border: 1px solid var(--glass-border); border-radius: 10px; }
.gt-stat-label { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-dim); }
.gt-stat-val { font-family: 'Cormorant Garamond', serif; font-size: 1.05rem; font-weight: 600; color: var(--text); }

/* SUMMARY CARDS */
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(195px,1fr)); gap: 14px; }
.stat-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 22px 22px 18px; position: relative; overflow: hidden; transition: transform 0.28s var(--ease), border-color 0.28s; }
.stat-card:hover { transform: translateY(-3px); border-color: rgba(201,168,76,0.18); }
.stat-card .accent-bar { position: absolute; top: 0; left: 22px; width: 28px; height: 2px; border-radius: 0 0 2px 2px; }
.stat-card.takehome .accent-bar { background: var(--blue); }
.stat-card.spent    .accent-bar { background: var(--red); }
.stat-card.net      .accent-bar { background: var(--green); }
.stat-label { font-size: 0.68rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 9px; }
.stat-value { font-family: 'Cormorant Garamond', serif; font-size: 1.85rem; font-weight: 600; line-height: 1; }
.stat-card.takehome .stat-value { color: var(--blue); }
.stat-card.spent    .stat-value { color: var(--red); }
.stat-card.net      .stat-value { color: var(--green); }

/* CHARTS */
.charts-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 18px; }
@media (max-width: 860px) { .charts-grid { grid-template-columns: 1fr; } }
.chart-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 26px; }
.chart-title { font-family: 'Cormorant Garamond', serif; font-size: 1.05rem; letter-spacing: 0.06em; color: var(--text-mid); margin-bottom: 18px; }
.chart-wrap { position: relative; height: 260px; }

/* MONTHLY TABLE */
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.section-title { font-family: 'Cormorant Garamond', serif; font-size: 1.4rem; font-weight: 300; letter-spacing: 0.05em; color: var(--text-mid); }
.add-btn { background: var(--gold-dim); border: 1px solid rgba(201,168,76,0.28); color: var(--gold-light); border-radius: 10px; padding: 9px 20px; font-family: 'DM Sans', sans-serif; font-size: 0.78rem; letter-spacing: 0.08em; cursor: pointer; transition: all 0.22s var(--ease); }
.add-btn:hover { background: rgba(201,168,76,0.22); transform: translateY(-1px); }

.month-header-row { display: grid; grid-template-columns: 150px 1fr 1fr 1fr 180px 130px 38px; gap: 10px; padding: 0 14px 11px; border-bottom: 1px solid var(--glass-border); }
.col-head { font-size: 0.63rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--text-dim); }
.col-head.right { text-align: right; }
.month-grid { display: grid; gap: 8px; margin-top: 8px; }
.month-row { display: grid; grid-template-columns: 150px 1fr 1fr 1fr 180px 130px 38px; gap: 10px; align-items: center; background: var(--glass); border: 1px solid var(--glass-border); border-radius: 12px; padding: 12px 14px; transition: all 0.22s var(--ease); animation: rowIn 0.38s var(--ease) both; }
.month-row:hover { border-color: rgba(201,168,76,0.14); background: rgba(255,255,255,0.05); }
.month-row.editing { border-color: rgba(201,168,76,0.38); background: rgba(201,168,76,0.045); }
.month-name-cell { display: flex; flex-direction: column; gap: 1px; }
.month-name { font-family: 'Cormorant Garamond', serif; font-size: 1.05rem; font-weight: 400; color: var(--text); line-height: 1.2; }
.month-year-tag { font-size: 0.63rem; letter-spacing: 0.07em; color: var(--text-dim); }

/* input + calc button side by side */
.input-cell { display: flex; align-items: center; gap: 4px; justify-content: flex-end; }
.month-input { background: transparent; border: none; color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.86rem; font-weight: 300; text-align: right; width: 100%; padding: 5px 8px; border-radius: 7px; transition: background 0.18s, color 0.18s; outline: none; }
.month-input:focus { background: rgba(255,255,255,0.07); color: var(--gold-light); }
.month-input::placeholder { color: var(--text-dim); }
.month-input[type="number"]::-webkit-inner-spin-button,
.month-input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }
.note-input { background: rgba(255,255,255,0.03); border: 1px solid transparent; color: var(--text-mid); font-family: 'DM Sans', sans-serif; font-size: 0.78rem; font-weight: 300; width: 100%; padding: 7px 10px; border-radius: 8px; transition: background 0.18s, border-color 0.18s, color 0.18s; outline: none; }
.note-input:focus { background: rgba(255,255,255,0.07); border-color: rgba(201,168,76,0.28); color: var(--text); }
.note-input::placeholder { color: var(--text-dim); }
.calc-trigger { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 0.78rem; width: 22px; height: 22px; border-radius: 5px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; opacity: 0.4; transition: opacity 0.18s, color 0.18s, background 0.18s; padding: 0; }
.calc-trigger:hover { opacity: 1; color: var(--gold-light); background: rgba(201,168,76,0.12); }
.input-cell:focus-within .calc-trigger { opacity: 0.7; }

.net-cell { text-align: right; font-family: 'Cormorant Garamond', serif; font-size: 1.05rem; font-weight: 600; transition: color 0.28s; }
.net-cell.pos { color: var(--green); }
.net-cell.neg { color: var(--red); }
.net-cell.zero { color: var(--text-dim); }
.last-updated { font-size: 0.7rem; color: var(--text-dim); text-align: right; cursor: pointer; padding: 4px 6px; border-radius: 6px; transition: background 0.18s, color 0.18s; white-space: nowrap; }
.last-updated:hover { background: rgba(255,255,255,0.05); color: var(--text-mid); }
.date-input { background: rgba(255,255,255,0.07); border: 1px solid rgba(201,168,76,0.28); border-radius: 7px; color: var(--gold-light); font-family: 'DM Sans', sans-serif; font-size: 0.7rem; padding: 4px 6px; outline: none; width: 100%; color-scheme: dark; }
.del-btn { background: none; border: none; color: rgba(224,92,92,0.3); cursor: pointer; font-size: 0.9rem; width: 30px; height: 30px; border-radius: 7px; display: flex; align-items: center; justify-content: center; transition: all 0.18s; }
.del-btn:hover { background: rgba(224,92,92,0.1); color: var(--red); }

/* PROJECTS */


/* MODALS (shared) */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.72); backdrop-filter: blur(8px); z-index: 300; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.28s; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal { background: var(--bg2); border: 1px solid rgba(201,168,76,0.22); border-radius: 20px; padding: 34px; width: 380px; max-width: calc(100vw - 40px); transform: scale(0.94) translateY(12px); transition: transform 0.32s var(--ease); }
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal h3 { font-family: 'Cormorant Garamond', serif; font-size: 1.35rem; font-weight: 300; margin-bottom: 22px; color: var(--gold-light); }
.modal-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-field { margin-bottom: 14px; }
.modal-field label { display: block; font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 5px; }
.modal-field input, .modal-field select { width: 100%; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); border-radius: 10px; color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.86rem; padding: 11px 13px; outline: none; transition: border-color 0.2s; color-scheme: dark; }
.modal-field input:focus, .modal-field select:focus { border-color: rgba(201,168,76,0.38); }
.modal-field select { cursor: pointer; }
.modal-field select option { background: var(--bg2); }
.modal-actions { display: flex; gap: 10px; margin-top: 22px; }
.btn-primary { flex: 1; background: var(--gold-dim); border: 1px solid rgba(201,168,76,0.38); color: var(--gold-light); font-family: 'DM Sans', sans-serif; font-size: 0.8rem; letter-spacing: 0.08em; padding: 11px; border-radius: 10px; cursor: pointer; transition: all 0.22s var(--ease); }
.btn-primary:hover { background: rgba(201,168,76,0.23); transform: translateY(-1px); }
.btn-secondary { flex: 1; background: none; border: 1px solid var(--glass-border); color: var(--text-dim); font-family: 'DM Sans', sans-serif; font-size: 0.8rem; letter-spacing: 0.08em; padding: 11px; border-radius: 10px; cursor: pointer; transition: all 0.22s var(--ease); }
.btn-secondary:hover { border-color: rgba(255,255,255,0.15); color: var(--text); }

/* CALCULATOR MODAL */
.calc-modal { width: 300px; padding: 28px; }
.calc-field-label { font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 6px; }
.calc-display { background: rgba(0,0,0,0.35); border: 1px solid var(--glass-border); border-radius: 12px; padding: 14px 16px; margin-bottom: 16px; min-height: 70px; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-end; gap: 4px; }
.calc-expr-line { font-size: 0.72rem; color: var(--text-dim); min-height: 16px; word-break: break-all; text-align: right; }
.calc-result-line { font-family: 'Cormorant Garamond', serif; font-size: 2rem; font-weight: 600; color: var(--gold-light); line-height: 1; }
.calc-btns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.cb { background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); border-radius: 9px; color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.9rem; padding: 11px 4px; cursor: pointer; text-align: center; transition: all 0.14s var(--ease); user-select: none; }
.cb:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.18); transform: translateY(-1px); }
.cb:active { transform: scale(0.95); }
.cb.op { color: var(--gold-light); background: rgba(201,168,76,0.08); border-color: rgba(201,168,76,0.2); }
.cb.op:hover { background: rgba(201,168,76,0.18); }
.cb.clear { color: var(--red); background: rgba(224,92,92,0.08); border-color: rgba(224,92,92,0.2); }
.cb.clear:hover { background: rgba(224,92,92,0.16); }
.cb.back { color: var(--text-mid); }
.cb.apply { grid-column: span 4; background: rgba(76,175,125,0.14); border-color: rgba(76,175,125,0.3); color: var(--green); font-size: 0.8rem; letter-spacing: 0.08em; padding: 12px; }
.cb.apply:hover { background: rgba(76,175,125,0.24); }
.cb.zero { grid-column: span 2; }

/* PROJECT CONTROLS */
.proj-controls { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.proj-filters { display: flex; gap: 6px; flex-wrap: wrap; }
.pf-btn { background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border); color: var(--text-dim); font-family: 'DM Sans', sans-serif; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 6px 14px; border-radius: 20px; cursor: pointer; transition: all 0.2s var(--ease); }
.pf-btn:hover { background: rgba(255,255,255,0.08); color: var(--text-mid); }
.pf-btn.active { background: var(--gold-dim); border-color: rgba(201,168,76,0.35); color: var(--gold-light); }
.proj-sorts select { background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); color: var(--text-dim); font-family: 'DM Sans', sans-serif; font-size: 0.75rem; padding: 6px 12px; border-radius: 10px; outline: none; cursor: pointer; color-scheme: dark; transition: border-color 0.2s; }
.proj-sorts select:focus { border-color: rgba(201,168,76,0.35); color: var(--text); }
.proj-sorts select option { background: var(--bg2); }

/* PROJECT CARDS */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px,1fr)); gap: 13px; margin-top: 0; }
.project-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 14px; padding: 16px 16px 54px 16px; position: relative; transition: all 0.25s var(--ease); cursor: grab; user-select: none; }
.project-card:hover { transform: translateY(-3px); border-color: rgba(201,168,76,0.18); }
.project-card.completed { opacity: 0.38; filter: grayscale(0.6); }
.project-card.completed:hover { opacity: 0.55; }
.project-card.drag-over { border-color: rgba(201,168,76,0.5); background: rgba(201,168,76,0.06); transform: scale(1.02); }
.project-card.dragging { opacity: 0.3; cursor: grabbing; transform: scale(0.97); }
.drag-handle { position: absolute; top: 12px; left: 12px; color: var(--text-dim); opacity: 0; font-size: 0.78rem; cursor: grab; transition: opacity 0.18s; line-height: 1; letter-spacing: -1px; }
.project-card:hover .drag-handle { opacity: 0.5; }
.drag-handle:hover { opacity: 1 !important; color: var(--gold-light); }
.budget-badge { position: absolute; top: 12px; right: 12px; font-size: 0.56rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 9px; border-radius: 20px; }
.budget-badge.yes { background: rgba(76,175,125,0.14); color: var(--green); border: 1px solid rgba(76,175,125,0.28); }
.budget-badge.no  { background: rgba(224,92,92,0.11); color: var(--red); border: 1px solid rgba(224,92,92,0.24); }
.project-name { font-family: 'Cormorant Garamond', serif; font-size: 1.05rem; margin-bottom: 6px; padding-right: 72px; word-break: break-word; line-height: 1.3; }
.project-name.done { text-decoration: line-through; color: var(--text-dim); }
.project-cost { font-size: 0.78rem; color: var(--text-dim); }
.project-cost span { font-family: 'Cormorant Garamond', serif; font-size: 0.96rem; color: var(--text-mid); }
.proj-actions { position: absolute; bottom: 12px; left: 12px; right: 12px; display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.complete-btn { background: none; border: 1px solid var(--glass-border); color: var(--text-dim); font-family: 'DM Sans', sans-serif; font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 4px 10px; border-radius: 6px; cursor: pointer; transition: all 0.18s; white-space: nowrap; }
.complete-btn:hover { border-color: rgba(76,175,125,0.4); color: var(--green); background: rgba(76,175,125,0.08); }
.project-card.completed .complete-btn { border-color: rgba(201,168,76,0.3); color: var(--gold-light); }
.project-card.completed .complete-btn:hover { background: rgba(201,168,76,0.1); }

/* TOAST */
.toast { position: fixed; bottom: 30px; right: 30px; background: rgba(18,18,24,0.96); border: 1px solid rgba(201,168,76,0.28); border-radius: 11px; padding: 13px 20px; font-size: 0.78rem; letter-spacing: 0.06em; color: var(--gold-light); backdrop-filter: blur(12px); transform: translateY(18px); opacity: 0; transition: all 0.3s var(--ease); z-index: 999; pointer-events: none; }
.toast.show { transform: translateY(0); opacity: 1; }

/* ANIMATIONS */
@keyframes fadeUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
@keyframes rowIn  { from { opacity:0; transform:translateX(-6px); } to { opacity:1; transform:translateX(0); } }
@keyframes pulseDot { 0%{opacity:0;transform:scale(0.5)} 30%{opacity:1;transform:scale(1.5)} 60%{opacity:1;transform:scale(1)} 100%{opacity:0} }

/* RESPONSIVE */
@media (max-width: 720px) {
  .month-header-row, .month-row { grid-template-columns: 110px 1fr 1fr 1fr 32px; }
  .hide-sm { display: none; }
}
@media (max-width: 500px) {
  .month-header-row, .month-row { grid-template-columns: 85px 1fr 1fr 28px; }
  .hide-xs { display: none; }
  .grand-total-card { flex-direction: column; padding: 26px 20px; }
}

/* Reset button */
.settings-divider {
  height: 1px;
  background: var(--glass-border);
  margin: 28px 0;
}
.settings-reset-btn {
  width: 100%;
  padding: 12px 16px;
  background: rgba(224,92,92,0.08);
  border: 1px solid rgba(224,92,92,0.25);
  border-radius: 11px;
  color: var(--red);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  transition: all 0.2s var(--ease);
  font-weight: 400;
}
.settings-reset-btn:hover {
  background: rgba(224,92,92,0.16);
  border-color: rgba(224,92,92,0.45);
  transform: translateY(-1px);
}
.settings-reset-btn svg {
  width: 14px; height: 14px;
  stroke: currentColor; fill: none; stroke-width: 1.8;
  flex-shrink: 0;
}

/* ── CCS NAV BAR ── */
.ccs-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 64px;
  background: rgba(13,13,16,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: background 0.4s;
}
body.light .ccs-nav {
  background: rgba(245,243,239,0.92);
}
.ccs-nav-logo {
  display: flex; align-items: center; gap: 11px; text-decoration: none;
}
.ccs-nav-logo img { width: 32px; height: 32px; object-fit: contain; }
.ccs-nav-logo span {
  font-family: 'DM Sans', sans-serif;
  font-weight: 300; font-size: 13px; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--text); opacity: 0.85;
}
.ccs-nav-back {
  font-family: 'DM Sans', sans-serif;
  font-size: 10px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--text-dim); text-decoration: none; font-weight: 300;
  display: flex; align-items: center; gap: 8px; transition: color 0.25s;
}
.ccs-nav-back:hover { color: var(--gold-light); }
.ccs-nav-back svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 1.5; }
/* Push page content below nav */
.page { padding-top: 80px; }


/* ══════════════════════════════════════
   INTRO ANIMATION OVERLAY
══════════════════════════════════════ */
#introOverlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  background: var(--bg);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1);
  pointer-events: all;
}
#introOverlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.intro-logo-ring {
  position: relative;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.intro-logo-ring img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.7);
  animation: introLogoIn 0.7s cubic-bezier(0.34,1.56,0.64,1) 0.3s forwards;
  filter: drop-shadow(0 0 24px rgba(201,168,76,0.3));
}
.intro-ring-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  animation: introRingSpin 2s linear infinite;
}
.intro-ring-svg circle {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-dasharray: 60 240;
  opacity: 0;
  animation: introRingFade 0.5s ease 0.2s forwards;
}

.intro-wordmark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transform: translateY(10px);
  animation: introWordIn 0.6s ease 0.6s forwards;
}
.intro-wordmark-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--text);
  line-height: 1;
}
.intro-wordmark-title span {
  color: var(--gold);
  font-style: italic;
}
.intro-wordmark-sub {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 300;
}

.intro-bar-wrap {
  width: 160px;
  height: 1px;
  background: var(--glass-border);
  overflow: hidden;
  opacity: 0;
  animation: introWordIn 0.4s ease 1s forwards;
}
.intro-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  animation: introBarFill 1.6s cubic-bezier(0.4,0,0.2,1) 1.1s forwards;
}

@keyframes introLogoIn {
  to { opacity: 1; transform: scale(1); }
}
@keyframes introRingFade {
  to { opacity: 0.7; }
}
@keyframes introRingSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes introWordIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes introBarFill {
  to { width: 100%; }
}


/* ═══════════════════════════════════════
   MOBILE RESPONSIVE — additions only
   Desktop (≥769px) is unchanged
═══════════════════════════════════════ */

@media (max-width: 600px) {
  .ccs-nav { padding: 0 20px; }
  .ccs-nav-logo span { font-size: 11px; letter-spacing: 0.2em; }
  .page { padding: 0 16px 80px; padding-top: 80px; }

  header { flex-direction: column; align-items: flex-start; gap: 16px; padding: 32px 0 16px; }

  .grand-total-card { flex-direction: column; padding: 28px 24px; gap: 20px; }
  .gt-amount { font-size: clamp(2.4rem, 10vw, 4rem); }
  .gt-breakdown { min-width: unset; width: 100%; }

  .summary-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-card { padding: 16px 14px 14px; }
  .stat-value { font-size: 1.5rem; }

  .tabs-bar { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-btn { padding: 12px 14px 11px; font-size: 0.7rem; white-space: nowrap; }

  /* Make touch targets larger */
  .settings-fab { width: 48px; height: 48px; bottom: 24px; right: 20px; }
  .del-btn { width: 36px; height: 36px; }
  .calc-trigger { width: 32px; height: 32px; opacity: 0.7; }

  .add-btn { padding: 10px 16px; font-size: 0.75rem; }

  .modal { padding: 24px 20px; }
  .calc-modal { width: calc(100vw - 32px); padding: 20px; }
  .cb { padding: 13px 4px; font-size: 1rem; }

  .toast { bottom: 80px; right: 16px; left: 16px; text-align: center; }
}

@media (max-width: 420px) {
  .month-header-row,
  .month-row { grid-template-columns: 72px 1fr 1fr 28px; }
  .hide-xs { display: none; }
  .summary-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.15rem; }
  .modal-row { grid-template-columns: 1fr; }
}


/* ===== chromebook ===== */

  :root {
    --bg: #0a0a0a;
    --bg2: #111111;
    --bg3: #161616;
    --surface: #1a1a1a;
    --border: rgba(0,212,255,0.15);
    --accent: #00d4ff;
    --accent2: #0066ff;
    --text: #f0f0f0;
    --text-muted: #888;
    --text-dim: #444;
    --card-bg: rgba(255,255,255,0.03);
    --code-bg: rgba(0,212,255,0.05);
    --code-border: rgba(0,212,255,0.2);
  }
  [data-theme="light"] {
    --bg: #f5f5f5;
    --bg2: #eeeeee;
    --bg3: #e8e8e8;
    --surface: #ffffff;
    --border: rgba(0,80,180,0.2);
    --accent: #0055cc;
    --accent2: #0033aa;
    --text: #111111;
    --text-muted: #555;
    --text-dim: #bbb;
    --card-bg: rgba(0,0,0,0.03);
    --code-bg: rgba(0,55,200,0.05);
    --code-border: rgba(0,55,200,0.2);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }

  body {
    font-family: 'Josefin Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background 0.4s, color 0.4s;
    overflow-x: hidden;
  }

  body::before {
    content: '';
    position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none; z-index: 0; opacity: 0.4;
  }

  /* NAV */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 48px; height: 70px;
    background: rgba(10,10,10,0.88);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.4s, border-color 0.4s;
  }
  [data-theme="light"] nav { background: rgba(245,245,245,0.92); }
  .nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; cursor: pointer; }
  .nav-logo img { width: 34px; height: 34px; object-fit: contain; }
  .nav-logo span {
    font-weight: 100; font-size: 14px; letter-spacing: 0.3em;
    text-transform: uppercase; color: var(--text);
  }
  .nav-back {
    font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--text-muted); text-decoration: none; font-weight: 300;
    display: flex; align-items: center; gap: 8px;
    transition: color 0.3s;
  }
  .nav-back:hover { color: var(--accent); }
  .nav-back svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.5; }

  /* HERO BANNER */
  .tutorial-hero {
    padding: 130px 48px 70px;
    max-width: 900px; margin: 0 auto;
    position: relative; z-index: 1;
    animation: fadeUp 0.8s ease both;
  }
  .tutorial-tag {
    font-size: 10px; letter-spacing: 0.5em; text-transform: uppercase;
    color: var(--accent); font-weight: 300; margin-bottom: 16px; display: block;
  }
  .tutorial-title {
    font-weight: 100; font-size: clamp(32px, 5vw, 62px);
    letter-spacing: 0.15em; text-transform: uppercase;
    line-height: 1.1; color: var(--text); margin-bottom: 20px;
  }
  .tutorial-meta {
    display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
    margin-top: 20px; padding-top: 20px;
    border-top: 1px solid var(--border);
  }
  .meta-item {
    font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
    color: var(--text-muted); font-weight: 300;
    display: flex; align-items: center; gap: 8px;
  }
  .meta-dot {
    width: 5px; height: 5px; border-radius: 50%;
    background: var(--accent); display: inline-block;
  }

  /* LINE DECORATION */
  .line-dec {
    width: 100%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    position: relative; z-index: 1;
  }

  /* CONTENT */
  .tutorial-content {
    max-width: 900px; margin: 0 auto;
    padding: 0 48px 100px;
    position: relative; z-index: 1;
  }

  /* SECTION BLOCKS */
  .tut-section {
    margin-bottom: 72px;
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .tut-section.revealed { opacity: 1; transform: translateY(0); }

  .tut-section-header {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 28px; padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }
  .section-num {
    font-size: 11px; letter-spacing: 0.4em; color: var(--accent);
    font-weight: 300; text-transform: uppercase; white-space: nowrap;
  }
  .section-heading {
    font-weight: 100; font-size: 22px; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--text);
  }

  .tut-p {
    font-size: 13px; line-height: 1.95; color: var(--text-muted);
    font-weight: 300; letter-spacing: 0.04em; margin-bottom: 20px;
  }
  .tut-p strong { color: var(--text); font-weight: 400; }

  /* REQUIREMENTS LIST */
  .req-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1px; background: var(--border);
    border: 1px solid var(--border);
    margin: 24px 0;
  }
  .req-item {
    background: var(--bg);
    padding: 20px 24px;
    transition: background 0.2s;
  }
  .req-item:hover { background: var(--card-bg); }
  .req-item-label {
    font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--accent); font-weight: 400; margin-bottom: 6px; display: block;
  }
  .req-item-text {
    font-size: 12px; color: var(--text); font-weight: 300;
    letter-spacing: 0.05em; line-height: 1.6;
  }

  /* EXCLUDED LIST */
  .exclude-list {
    border: 1px solid var(--border);
    margin: 20px 0;
  }
  .exclude-item {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 16px 24px; border-bottom: 1px solid var(--border);
    font-size: 12px; color: var(--text-muted); font-weight: 300;
    letter-spacing: 0.04em; line-height: 1.6;
    transition: background 0.2s;
  }
  .exclude-item:last-child { border-bottom: none; }
  .exclude-item:hover { background: var(--card-bg); }
  .exclude-dash {
    color: var(--accent); font-weight: 400; margin-top: 1px;
    flex-shrink: 0;
  }

  /* NOTICE BOX */
  .notice {
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    padding: 20px 24px;
    margin: 24px 0;
    background: var(--code-bg);
  }
  .notice-label {
    font-size: 9px; letter-spacing: 0.5em; text-transform: uppercase;
    color: var(--accent); font-weight: 400; margin-bottom: 8px; display: block;
  }
  .notice-text {
    font-size: 12px; color: var(--text-muted); font-weight: 300;
    line-height: 1.8; letter-spacing: 0.04em;
  }

  /* STEPS */
  .steps-list { margin: 24px 0; }
  .step {
    display: flex; gap: 24px; margin-bottom: 28px;
    padding-bottom: 28px; border-bottom: 1px solid var(--border);
  }
  .step:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
  .step-num {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 100; font-size: 28px; letter-spacing: 0.1em;
    color: var(--text-dim); flex-shrink: 0; width: 40px;
    line-height: 1;
  }
  .step-body { flex: 1; }
  .step-title {
    font-size: 13px; font-weight: 400; letter-spacing: 0.15em;
    text-transform: uppercase; color: var(--text); margin-bottom: 10px;
  }
  .step-text {
    font-size: 12px; color: var(--text-muted); font-weight: 300;
    line-height: 1.85; letter-spacing: 0.04em;
  }
  .step-text a {
    color: var(--accent); text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
  }
  .step-text a:hover { border-color: var(--accent); }

  /* CODE BLOCKS */
  .code-block {
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-left: 2px solid var(--accent);
    padding: 16px 20px;
    margin: 12px 0;
    font-family: 'Source Code Pro', monospace;
    font-size: 12px; font-weight: 300;
    color: var(--text);
    letter-spacing: 0.05em;
    line-height: 1.7;
    overflow-x: auto;
    position: relative;
  }
  .code-block .comment {
    color: var(--text-muted);
    font-style: italic;
  }
  .code-block .cmd { color: var(--accent); }

  /* IMAGE BLOCK */
  .img-block {
    margin: 28px 0;
    border: 1px solid var(--border);
    overflow: hidden;
    position: relative;
  }
  .img-block img {
    width: 100%; display: block;
    filter: brightness(0.95);
    transition: filter 0.3s;
  }
  .img-block:hover img { filter: brightness(1.05); }
  .img-caption {
    padding: 12px 20px;
    font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase;
    color: var(--text-muted); font-weight: 300;
    border-top: 1px solid var(--border);
    background: var(--card-bg);
  }

  /* OPTION CARDS */
  .option-cards { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); margin: 20px 0; }
  .option-card { background: var(--bg); padding: 24px 28px; }
  .option-num {
    font-size: 9px; letter-spacing: 0.4em; text-transform: uppercase;
    color: var(--accent); font-weight: 400; margin-bottom: 8px; display: block;
  }
  .option-title {
    font-size: 13px; font-weight: 400; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--text); margin-bottom: 12px;
  }
  .option-steps {
    margin-top: 12px; display: flex; flex-direction: column; gap: 8px;
  }
  .option-step {
    display: flex; gap: 12px; align-items: flex-start;
    font-size: 12px; color: var(--text-muted); font-weight: 300; line-height: 1.7;
  }
  .option-step-num { color: var(--accent); font-weight: 400; flex-shrink: 0; font-size: 10px; }

  /* FOOTER */
  footer {
    border-top: 1px solid var(--border);
    padding: 40px 48px;
    display: flex; align-items: center; justify-content: space-between;
    position: relative; z-index: 1;
  }
  .footer-brand { display: flex; align-items: center; gap: 10px; }
  .footer-brand img { width: 28px; height: 28px; object-fit: contain; }
  .footer-brand span {
    font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--text-dim); font-weight: 300;
  }
  .footer-copy {
    font-size: 10px; color: var(--text-dim); letter-spacing: 0.1em; font-weight: 300;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @media (max-width: 768px) {
    nav { padding: 0 24px; }
    .tutorial-hero { padding: 110px 24px 50px; }
    .tutorial-content { padding: 0 24px 60px; }
    footer { flex-direction: column; gap: 16px; text-align: center; padding: 28px 24px; }
    .step { flex-direction: column; gap: 8px; }
  }


  /* ── INLINE LEGEND ── */
  .legend-wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 48px;
    position: relative;
    z-index: 1;
  }
  .legend-bar {
    border: 1px solid var(--border);
    background: var(--card-bg);
    margin-bottom: 48px;
    overflow: hidden;
  }
  .legend-bar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
  }
  .legend-bar-header:hover { background: var(--card-bg); }
  .legend-bar-title {
    font-size: 9px;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 400;
  }
  .legend-toggle-icon {
    width: 14px; height: 14px;
    stroke: var(--text-muted); fill: none; stroke-width: 1.5;
    transition: transform 0.3s ease;
  }
  .legend-bar.collapsed .legend-toggle-icon { transform: rotate(-90deg); }
  .legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    background: var(--border);
    max-height: 300px;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 1;
  }
  .legend-bar.collapsed .legend-items {
    max-height: 0;
    opacity: 0;
  }
  .legend-item {
    background: var(--bg);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    text-decoration: none;
    transition: background 0.2s;
    cursor: pointer;
    flex: 1 1 calc(33.333% - 1px);
    min-width: 140px;
    box-sizing: border-box;
  }
  .legend-item:hover { background: var(--card-bg); }

  .legend-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--text-muted);
    flex-shrink: 0;
    transition: background 0.2s, transform 0.2s;
  }
  .legend-item:hover .legend-dot { background: var(--accent); transform: scale(1.4); }
  .legend-item-num {
    font-size: 9px;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    font-weight: 300;
    flex-shrink: 0;
  }

  .legend-label {
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text);
    font-weight: 300;
    line-height: 1.3;
  }
  .legend-item:hover .legend-label { color: var(--text); }

  /* ── BACK TO TOP ── */
  .back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 300;
    width: 44px; height: 44px;
    background: var(--bg2);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s, border-color 0.2s;
    pointer-events: none;
  }
  .back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
  }
  .back-to-top:hover {
    background: var(--accent);
    border-color: var(--accent);
  }
  .back-to-top:hover svg { stroke: #000; }
  .back-to-top svg {
    width: 16px; height: 16px;
    stroke: var(--text-muted); fill: none; stroke-width: 1.5;
    transition: stroke 0.2s;
  }

  @media (max-width: 768px) {
    .legend-wrap { padding: 0 24px; }
    .legend-item { flex: 1 1 calc(50% - 1px); }
  }

  /* ── COPY BUTTON ── */
  .code-block { position: relative; overflow: hidden; }
  .code-block pre { padding: 16px 64px 16px 20px; margin: 0; white-space: pre-wrap; word-break: break-all; }
  .copy-btn { position: absolute; top: 10px; right: 10px; display: flex; align-items: center; gap: 6px; background: transparent; border: 1px solid var(--border); color: var(--text-muted); padding: 5px 10px; cursor: pointer; font-family: 'Josefin Sans', sans-serif; font-size: 9px; letter-spacing: .2em; text-transform: uppercase; font-weight: 300; transition: all .2s ease; z-index: 2; }
  .copy-btn:hover { border-color: var(--accent); color: var(--accent); }
  .copy-btn.copied { border-color: var(--accent); color: var(--accent); }
  .copy-btn svg { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 1.5; flex-shrink: 0; }
  .copy-label { line-height: 1; }

  /* ── SMART VARIABLE INPUTS ── */
  .smart-vars {
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    background: var(--code-bg);
    margin-bottom: 32px;
    padding: 20px 24px;
  }
  .smart-vars-title {
    font-size: 9px; letter-spacing: 0.5em; text-transform: uppercase;
    color: var(--accent); font-weight: 400; margin-bottom: 16px; display: block;
  }
  .smart-vars-grid {
    display: flex; flex-wrap: wrap; gap: 16px;
  }
  .smart-var-field {
    display: flex; flex-direction: column; gap: 6px; min-width: 180px; flex: 1;
  }
  .smart-var-label {
    font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--text-muted); font-weight: 300;
  }
  .smart-var-input {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: 'Source Code Pro', monospace;
    font-size: 12px; font-weight: 300;
    padding: 8px 12px;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
  }
  .smart-var-input:focus { border-color: var(--accent); }
  .smart-var-input::placeholder { color: var(--text-dim); }


  .code-block pre { user-select: text !important; }


  /* ═══════════════════════════════════════
     MOBILE RESPONSIVE — additions only
     Desktop (≥769px) is unchanged
  ═══════════════════════════════════════ */

  @media (max-width: 600px) {
    nav { padding: 0 20px; }
    .tutorial-hero { padding: 100px 20px 44px; }
    .tutorial-content { padding: 0 20px 60px; }
    .legend-wrap { padding: 0 20px; }
    footer { padding: 24px 20px; }

    .section-heading { font-size: 18px; }
    .tut-section-header { gap: 10px; margin-bottom: 20px; }

    .legend-item { flex: 1 1 calc(50% - 1px); min-width: 0; padding: 12px 14px; }
    .legend-label { font-size: 9px; }

    .req-grid { grid-template-columns: 1fr; gap: 1px; }

    .code-block pre { padding: 14px 44px 14px 14px; font-size: 11px; }
    .copy-btn { padding: 4px 8px; font-size: 8px; }

    .img-block.small img { max-width: 100%; }
    .img-block.thumb img { max-width: 100%; }
    .img-block img { max-width: 100%; }

    .step { gap: 10px; }
    .step-num { font-size: 22px; width: 32px; }
    .step-title { font-size: 12px; }

    .option-card { padding: 18px 20px; }

    .back-to-top { bottom: 20px; right: 16px; }
  }

  @media (max-width: 420px) {
    .legend-item { flex: 1 1 100%; }
    .tutorial-hero { padding: 90px 16px 36px; }
    .tutorial-content { padding: 0 16px 48px; }
    .legend-wrap { padding: 0 16px; }
  }


/* ===== macos ===== */

  :root {
    --bg:#0a0a0a;--bg2:#111;--bg3:#161616;--surface:#1a1a1a;
    --border:rgba(0,212,255,0.15);--accent:#00d4ff;--accent2:#0066ff;
    --text:#f0f0f0;--text-muted:#888;--text-dim:#444;
    --card-bg:rgba(255,255,255,0.03);--code-bg:rgba(0,212,255,0.05);--code-border:rgba(0,212,255,0.2);
  }
  [data-theme="light"] {
    --bg:#f5f5f5;--bg2:#eee;--bg3:#e8e8e8;--surface:#fff;
    --border:rgba(0,80,180,0.2);--accent:#0055cc;--accent2:#0033aa;
    --text:#111;--text-muted:#555;--text-dim:#bbb;
    --card-bg:rgba(0,0,0,0.03);--code-bg:rgba(0,55,200,0.05);--code-border:rgba(0,55,200,0.2);
  }
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:'Josefin Sans',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;transition:background .4s,color .4s;overflow-x:hidden}
  body::before{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");pointer-events:none;z-index:0;opacity:.4}

  nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 48px;height:70px;background:rgba(10,10,10,0.88);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background .4s,border-color .4s}
  [data-theme="light"] nav{background:rgba(245,245,245,0.92)}
  .nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none}
  .nav-logo img{width:34px;height:34px;object-fit:contain}
  .nav-logo span{font-weight:100;font-size:14px;letter-spacing:.3em;text-transform:uppercase;color:var(--text)}
  .nav-back{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--text-muted);text-decoration:none;font-weight:300;display:flex;align-items:center;gap:8px;transition:color .3s}
  .nav-back:hover{color:var(--accent)}
  .nav-back svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5}

  .tutorial-hero{padding:130px 48px 70px;max-width:900px;margin:0 auto;position:relative;z-index:1;animation:fadeUp .8s ease both}
  .tutorial-tag{font-size:10px;letter-spacing:.5em;text-transform:uppercase;color:var(--accent);font-weight:300;margin-bottom:16px;display:block}
  .tutorial-title{font-weight:100;font-size:clamp(28px,5vw,58px);letter-spacing:.15em;text-transform:uppercase;line-height:1.1;color:var(--text);margin-bottom:20px}
  .tutorial-meta{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin-top:20px;padding-top:20px;border-top:1px solid var(--border)}
  .meta-item{font-size:10px;letter-spacing:.25em;text-transform:uppercase;color:var(--text-muted);font-weight:300;display:flex;align-items:center;gap:8px}
  .meta-dot{width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block}
  .hero-intro{margin-top:32px;font-size:14px;line-height:2;color:var(--text-muted);font-weight:300;letter-spacing:.05em;max-width:680px}

  /* ── INLINE LEGEND ── */
  .legend-wrap{max-width:900px;margin:0 auto;padding:0 48px;position:relative;z-index:1}
  .legend-bar{border:1px solid var(--border);background:var(--card-bg);margin-bottom:48px;overflow:hidden}
  .legend-bar-header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid var(--border);cursor:pointer;user-select:none;transition:background .2s}
  .legend-bar-header:hover{background:var(--card-bg)}
  .legend-bar-title{font-size:9px;letter-spacing:.5em;text-transform:uppercase;color:var(--accent);font-weight:400}
  .legend-toggle-icon{width:14px;height:14px;stroke:var(--text-muted);fill:none;stroke-width:1.5;transition:transform .3s ease}
  .legend-bar.collapsed .legend-toggle-icon{transform:rotate(-90deg)}
  .legend-items{display:flex;flex-wrap:wrap;gap:1px;background:var(--border);max-height:300px;overflow:hidden;transition:max-height .4s ease,opacity .3s ease;opacity:1}
  .legend-bar.collapsed .legend-items{max-height:0;opacity:0}
  .legend-item{background:var(--bg);padding:14px 20px;display:flex;align-items:center;justify-content:flex-start;gap:12px;text-decoration:none;transition:background .2s;cursor:pointer;flex:1 1 calc(33.333% - 1px);min-width:140px;box-sizing:border-box}
  .legend-item:hover{background:var(--card-bg)}
  .legend-dot{width:5px;height:5px;border-radius:50%;background:var(--text-muted);flex-shrink:0;transition:background .2s,transform .2s}
  .legend-item:hover .legend-dot{background:var(--accent);transform:scale(1.4)}
  .legend-item-num{font-size:9px;letter-spacing:.2em;color:var(--text-muted);font-weight:300;flex-shrink:0}
  .legend-label{font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--text);font-weight:300;line-height:1.3;opacity:1;transition:color .2s}
  .legend-item:hover .legend-label{color:var(--accent)}
  @media(max-width:768px){.legend-wrap{padding:0 24px}.legend-item{flex:1 1 calc(50% - 1px)}}

  .tutorial-content{max-width:900px;margin:0 auto;padding:0 48px 100px;position:relative;z-index:1}
  .tut-section{margin-bottom:72px;opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
  .tut-section.revealed{opacity:1;transform:translateY(0)}
  .tut-section-header{display:flex;align-items:center;gap:16px;margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--border)}
  .section-num{font-size:11px;letter-spacing:.4em;color:var(--accent);font-weight:300;text-transform:uppercase;white-space:nowrap}
  .section-heading{font-weight:100;font-size:22px;letter-spacing:.2em;text-transform:uppercase;color:var(--text)}

  .tut-p{font-size:13px;line-height:1.95;color:var(--text-muted);font-weight:300;letter-spacing:.04em;margin-bottom:20px}
  .tut-p strong{color:var(--text);font-weight:400}

  .notice{border:1px solid var(--border);border-left:3px solid var(--accent);padding:20px 24px;margin:24px 0;background:var(--code-bg)}
  .notice-label{font-size:9px;letter-spacing:.5em;text-transform:uppercase;color:var(--accent);font-weight:400;margin-bottom:8px;display:block}
  .notice-text{font-size:12px;color:var(--text-muted);font-weight:300;line-height:1.8;letter-spacing:.04em}
  .notice-text strong{color:var(--text);font-weight:400}

  .warn{border:1px solid rgba(255,160,0,0.25);border-left:3px solid #ffa000;padding:20px 24px;margin:24px 0;background:rgba(255,160,0,0.04)}
  .warn .notice-label{color:#ffa000}

  /* ── CODE BLOCKS WITH COPY ── */
  .code-block{position:relative;background:var(--code-bg);border:1px solid var(--code-border);border-left:2px solid var(--accent);margin:12px 0;overflow:hidden}
  .code-block pre{padding:16px 56px 16px 20px;font-family:'Source Code Pro',monospace;font-size:12px;font-weight:300;color:var(--text);letter-spacing:.05em;line-height:1.7;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
  .copy-btn{position:absolute;top:10px;right:10px;display:flex;align-items:center;gap:6px;background:transparent;border:1px solid var(--border);color:var(--text-muted);padding:5px 10px;cursor:pointer;font-family:'Josefin Sans',sans-serif;font-size:9px;letter-spacing:.2em;text-transform:uppercase;font-weight:300;transition:all .2s ease;z-index:2}
  .copy-btn:hover{border-color:var(--accent);color:var(--accent)}
  .copy-btn.copied{border-color:var(--accent);color:var(--accent)}
  .copy-btn svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:1.5;flex-shrink:0}
  .copy-label{line-height:1}

  .steps-list{margin:24px 0}
  .step{display:flex;gap:24px;margin-bottom:28px;padding-bottom:28px;border-bottom:1px solid var(--border)}
  .step:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
  .step-num{font-weight:100;font-size:28px;letter-spacing:.1em;color:var(--text-dim);flex-shrink:0;width:40px;line-height:1}
  .step-body{flex:1;min-width:0}
  .step-title{font-size:13px;font-weight:400;letter-spacing:.15em;text-transform:uppercase;color:var(--text);margin-bottom:10px}
  .step-text{font-size:12px;color:var(--text-muted);font-weight:300;line-height:1.85;letter-spacing:.04em;margin-bottom:8px}
  .step-text strong{color:var(--text);font-weight:400}
  .step-text a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}
  .step-text a:hover{border-color:var(--accent)}

  code{font-family:'Source Code Pro',monospace;font-size:11px;color:var(--accent);background:var(--code-bg);padding:2px 6px;border:1px solid var(--code-border)}

  .img-block{margin:20px 0;border:1px solid var(--border);overflow:hidden}
  .img-block img{width:100%;display:block;filter:brightness(.95);transition:filter .3s}
  .img-block:hover img{filter:brightness(1.05)}
  .img-caption{padding:10px 18px;font-size:10px;letter-spacing:.25em;text-transform:uppercase;color:var(--text-muted);font-weight:300;border-top:1px solid var(--border);background:var(--card-bg)}
  .img-block.small img{max-width:500px}

  /* processor tabs */
  .proc-tabs{display:flex;gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:0}
  .proc-tab{flex:1;padding:12px 20px;font-family:'Josefin Sans',sans-serif;font-size:10px;letter-spacing:.3em;text-transform:uppercase;font-weight:300;background:var(--bg2);color:var(--text-muted);border:none;cursor:pointer;transition:all .2s}
  .proc-tab.active{background:var(--accent);color:#000}
  [data-theme="light"] .proc-tab.active{color:#fff}
  .proc-panel{display:none;border:1px solid var(--border);border-top:none;padding:20px}
  .proc-panel.active{display:block}

  .req-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1px;background:var(--border);border:1px solid var(--border);margin:24px 0}
  .req-item{background:var(--bg);padding:20px 24px;transition:background .2s}
  .req-item:hover{background:var(--card-bg)}
  .req-item-label{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--accent);font-weight:400;margin-bottom:6px;display:block}
  .req-item-text{font-size:12px;color:var(--text);font-weight:300;letter-spacing:.05em;line-height:1.6}
  .macos-name-card{border:1px solid var(--border);background:var(--card-bg);padding:22px 24px;margin:24px 0}
  .macos-name-label{display:block;font-size:10px;letter-spacing:.35em;text-transform:uppercase;color:var(--accent);font-weight:400;margin-bottom:10px}
  .macos-name-text{font-size:12px;color:var(--text-muted);font-weight:300;line-height:1.8;letter-spacing:.04em;margin-bottom:14px}
  .macos-name-text strong{color:var(--text);font-weight:400}
  .macos-input{width:100%;background:transparent;border:1px solid var(--border);color:var(--text);padding:14px 16px;font-family:'Josefin Sans',sans-serif;font-size:14px;letter-spacing:.08em;transition:border-color .2s,box-shadow .2s}
  .macos-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
  .macos-input::placeholder{color:var(--text-muted)}
  .macos-helper{margin-top:12px;font-size:11px;color:var(--text-muted);font-weight:300;line-height:1.8;letter-spacing:.04em}
  .macos-helper strong{color:var(--text);font-weight:400}
  table td:empty,table th:empty{background:transparent;border-color:transparent}

  /* ── BACK TO TOP ── */
  .back-to-top{position:fixed;bottom:32px;right:32px;z-index:300;width:44px;height:44px;background:var(--bg2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease,background .2s,border-color .2s;pointer-events:none}
  .back-to-top.visible{opacity:1;transform:translateY(0);pointer-events:all}
  .back-to-top:hover{background:var(--accent);border-color:var(--accent)}
  .back-to-top:hover svg{stroke:#000}
  .back-to-top svg{width:16px;height:16px;stroke:var(--text-muted);fill:none;stroke-width:1.5;transition:stroke .2s}

  footer{border-top:1px solid var(--border);padding:40px 48px;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
  .footer-brand{display:flex;align-items:center;gap:10px}
  .footer-brand img{width:28px;height:28px;object-fit:contain}
  .footer-brand span{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--text-dim);font-weight:300}
  .footer-copy{font-size:10px;color:var(--text-dim);letter-spacing:.1em;font-weight:300}

  @keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
  @media(max-width:768px){
    nav{padding:0 24px}
    .tutorial-hero{padding:110px 24px 50px}
    .tutorial-content{padding:0 24px 60px}
    footer{flex-direction:column;gap:16px;text-align:center;padding:28px 24px}
    .step{flex-direction:column;gap:8px}
    .proc-tab{font-size:9px;padding:10px 12px}
  }

  /* ═══════════════════════════════════════
     MOBILE RESPONSIVE — additions only
     Desktop (≥769px) is unchanged
  ═══════════════════════════════════════ */

  @media(max-width:600px){
    nav{padding:0 20px}
    .tutorial-hero{padding:100px 20px 44px}
    .tutorial-content{padding:0 20px 60px}
    .legend-wrap{padding:0 20px}
    footer{padding:24px 20px}

    .section-heading{font-size:18px}
    .tut-section-header{gap:10px;margin-bottom:20px}

    .legend-item{flex:1 1 calc(50% - 1px);min-width:0;padding:12px 14px}
    .legend-label{font-size:9px}

    .req-grid{grid-template-columns:1fr}
    .code-block pre{padding:14px 44px 14px 14px;font-size:11px}
    .copy-btn{padding:4px 8px;font-size:8px}

    .img-block.small img{max-width:100%}
    .img-block img{max-width:100%}

    .step{gap:10px}
    .step-num{font-size:22px;width:32px}
    .step-title{font-size:12px}

    .proc-tab{font-size:9px;padding:10px 10px}
    .macos-name-card{padding:18px 16px}

    .back-to-top{bottom:20px;right:16px}
  }

  @media(max-width:420px){
    .legend-item{flex:1 1 100%}
    .tutorial-hero{padding:90px 16px 36px}
    .tutorial-content{padding:0 16px 48px}
    .legend-wrap{padding:0 16px}
  }


/* ===== windows ===== */

  :root {
    --bg:#0a0a0a;--bg2:#111;--bg3:#161616;--surface:#1a1a1a;
    --border:rgba(0,212,255,0.15);--accent:#00d4ff;--accent2:#0066ff;
    --text:#f0f0f0;--text-muted:#888;--text-dim:#444;
    --card-bg:rgba(255,255,255,0.03);--code-bg:rgba(0,212,255,0.05);--code-border:rgba(0,212,255,0.2);
  }
  [data-theme="light"] {
    --bg:#f5f5f5;--bg2:#eee;--bg3:#e8e8e8;--surface:#fff;
    --border:rgba(0,80,180,0.2);--accent:#0055cc;--accent2:#0033aa;
    --text:#111;--text-muted:#555;--text-dim:#bbb;
    --card-bg:rgba(0,0,0,0.03);--code-bg:rgba(0,55,200,0.05);--code-border:rgba(0,55,200,0.2);
  }
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:'Josefin Sans',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;transition:background .4s,color .4s;overflow-x:hidden}
  body::before{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");pointer-events:none;z-index:0;opacity:.4}

  nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 48px;height:70px;background:rgba(10,10,10,0.88);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background .4s,border-color .4s}
  [data-theme="light"] nav{background:rgba(245,245,245,0.92)}
  .nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none}
  .nav-logo img{width:34px;height:34px;object-fit:contain}
  .nav-logo span{font-weight:100;font-size:14px;letter-spacing:.3em;text-transform:uppercase;color:var(--text)}
  .nav-back{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--text-muted);text-decoration:none;font-weight:300;display:flex;align-items:center;gap:8px;transition:color .3s}
  .nav-back:hover{color:var(--accent)}
  .nav-back svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5}

  .tutorial-hero{padding:130px 48px 70px;max-width:900px;margin:0 auto;position:relative;z-index:1;animation:fadeUp .8s ease both}
  .tutorial-tag{font-size:10px;letter-spacing:.5em;text-transform:uppercase;color:var(--accent);font-weight:300;margin-bottom:16px;display:block}
  .tutorial-title{font-weight:100;font-size:clamp(28px,5vw,58px);letter-spacing:.15em;text-transform:uppercase;line-height:1.1;color:var(--text);margin-bottom:20px}
  .tutorial-meta{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin-top:20px;padding-top:20px;border-top:1px solid var(--border)}
  .meta-item{font-size:10px;letter-spacing:.25em;text-transform:uppercase;color:var(--text-muted);font-weight:300;display:flex;align-items:center;gap:8px}
  .meta-dot{width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block}
  .hero-intro{margin-top:32px;font-size:14px;line-height:2;color:var(--text-muted);font-weight:300;letter-spacing:.05em;max-width:680px}

  .line-dec{width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);position:relative;z-index:1}

  .tutorial-content{max-width:900px;margin:0 auto;padding:0 48px 100px;position:relative;z-index:1}

  .tut-section{margin-bottom:72px;opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
  .tut-section.revealed{opacity:1;transform:translateY(0)}
  .tut-section-header{display:flex;align-items:center;gap:16px;margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--border)}
  .section-num{font-size:11px;letter-spacing:.4em;color:var(--accent);font-weight:300;text-transform:uppercase;white-space:nowrap}
  .section-heading{font-weight:100;font-size:22px;letter-spacing:.2em;text-transform:uppercase;color:var(--text)}

  .tut-p{font-size:13px;line-height:1.95;color:var(--text-muted);font-weight:300;letter-spacing:.04em;margin-bottom:20px}
  .tut-p strong{color:var(--text);font-weight:400}

  .notice{border:1px solid var(--border);border-left:3px solid var(--accent);padding:20px 24px;margin:24px 0;background:var(--code-bg)}
  .notice-label{font-size:9px;letter-spacing:.5em;text-transform:uppercase;color:var(--accent);font-weight:400;margin-bottom:8px;display:block}
  .notice-text{font-size:12px;color:var(--text-muted);font-weight:300;line-height:1.8;letter-spacing:.04em}

  .warn{border:1px solid rgba(255,160,0,0.25);border-left:3px solid #ffa000;padding:20px 24px;margin:24px 0;background:rgba(255,160,0,0.04)}
  .warn .notice-label{color:#ffa000}
  .warn .notice-text{color:var(--text-muted)}

  .steps-list{margin:24px 0}
  .step{display:flex;gap:24px;margin-bottom:28px;padding-bottom:28px;border-bottom:1px solid var(--border)}
  .step:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
  .step-num{font-weight:100;font-size:28px;letter-spacing:.1em;color:var(--text-dim);flex-shrink:0;width:40px;line-height:1}
  .step-body{flex:1}
  .step-title{font-size:13px;font-weight:400;letter-spacing:.15em;text-transform:uppercase;color:var(--text);margin-bottom:10px}
  .step-text{font-size:12px;color:var(--text-muted);font-weight:300;line-height:1.85;letter-spacing:.04em}

  .code-block{background:var(--code-bg);border:1px solid var(--code-border);border-left:2px solid var(--accent);padding:14px 20px;margin:12px 0;font-family:'Source Code Pro',monospace;font-size:12px;font-weight:300;color:var(--text);letter-spacing:.05em;line-height:1.7;overflow-x:auto}
  .code-block .cmd{color:var(--accent)}
  .code-block .comment{color:var(--text-muted);font-style:italic}

  .img-block{margin:20px 0;border:1px solid var(--border);overflow:hidden}
  .img-block img{width:100%;display:block;filter:brightness(.95);transition:filter .3s}
  .img-block:hover img{filter:brightness(1.05)}
  .img-caption{padding:10px 18px;font-size:10px;letter-spacing:.25em;text-transform:uppercase;color:var(--text-muted);font-weight:300;border-top:1px solid var(--border);background:var(--card-bg)}

  .img-block.small img{max-width:480px}
  .img-block.inline{display:inline-block;width:auto;max-width:100%;vertical-align:top}
  .img-block.thumb img{max-width:280px}

  .rename-table{width:100%;border:1px solid var(--border);border-collapse:collapse;margin:20px 0;font-size:12px}
  .rename-table th{background:var(--card-bg);color:var(--accent);font-size:9px;letter-spacing:.4em;text-transform:uppercase;font-weight:400;padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
  .rename-table td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-muted);font-weight:300;letter-spacing:.04em}
  .rename-table tr:last-child td{border-bottom:none}
  .rename-table tr:hover td{background:var(--card-bg)}
  .rename-table .arrow{color:var(--accent);font-weight:400}
  code{font-family:'Source Code Pro',monospace;font-size:11px;color:var(--accent);background:var(--code-bg);padding:2px 6px;border:1px solid var(--code-border)}

  footer{border-top:1px solid var(--border);padding:40px 48px;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
  .footer-brand{display:flex;align-items:center;gap:10px}
  .footer-brand img{width:28px;height:28px;object-fit:contain}
  .footer-brand span{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--text-dim);font-weight:300}
  .footer-copy{font-size:10px;color:var(--text-dim);letter-spacing:.1em;font-weight:300}

  @keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

  @media(max-width:768px){
    nav{padding:0 24px}
    .tutorial-hero{padding:110px 24px 50px}
    .tutorial-content{padding:0 24px 60px}
    footer{flex-direction:column;gap:16px;text-align:center;padding:28px 24px}
    .step{flex-direction:column;gap:8px}
  }

  /* ── LEGEND ── */
  .legend {
    position: fixed;
    top: 50%;
    right: 16px;
    transform: translateY(-50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    animation: legendFadeIn 0.6s ease 1s forwards;
  }
  @keyframes legendFadeIn { to { opacity: 1; } }
  .legend-item {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    cursor: pointer;
    text-decoration: none;
    group: legend;
  }
  .legend-label {
    font-family: 'Josefin Sans', sans-serif;
    font-size: 9px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 300;
    opacity: 1;
    transition: color 0.2s ease;
    white-space: nowrap;
  }
  .legend-item:hover .legend-label,
  .legend-item.active .legend-label {
    opacity: 1;
    transform: translateX(0);
  }
  .legend-item.active .legend-label { color: var(--accent); }
  .legend-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-dim);
    flex-shrink: 0;
    transition: background 0.2s ease, transform 0.2s ease;
  }
  .legend-item:hover .legend-dot { background: var(--text-muted); transform: scale(1.4); }
  .legend-item.active .legend-dot { background: var(--accent); transform: scale(1.4); }
  

  /* ── INLINE LEGEND ── */
  .legend-wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 48px;
    position: relative;
    z-index: 1;
  }
  .legend-bar {
    border: 1px solid var(--border);
    background: var(--card-bg);
    margin-bottom: 48px;
    overflow: hidden;
  }
  .legend-bar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
  }
  .legend-bar-header:hover { background: var(--card-bg); }
  .legend-bar-title {
    font-size: 9px;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 400;
  }
  .legend-toggle-icon {
    width: 14px; height: 14px;
    stroke: var(--text-muted); fill: none; stroke-width: 1.5;
    transition: transform 0.3s ease;
  }
  .legend-bar.collapsed .legend-toggle-icon { transform: rotate(-90deg); }
  .legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    background: var(--border);
    max-height: 300px;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 1;
  }
  .legend-bar.collapsed .legend-items {
    max-height: 0;
    opacity: 0;
  }
  .legend-item {
    background: var(--bg);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    text-decoration: none;
    transition: background 0.2s;
    cursor: pointer;
    flex: 1 1 calc(33.333% - 1px);
    min-width: 140px;
    box-sizing: border-box;
  }
  .legend-item:hover { background: var(--card-bg); }

  .legend-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--text-muted);
    flex-shrink: 0;
    transition: background 0.2s, transform 0.2s;
  }
  .legend-item:hover .legend-dot { background: var(--accent); transform: scale(1.4); }
  .legend-item-num {
    font-size: 9px;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    font-weight: 300;
    flex-shrink: 0;
  }

  .legend-label {
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text);
    font-weight: 300;
    line-height: 1.3;
  }
  .legend-item:hover .legend-label { color: var(--text); }

  /* ── BACK TO TOP ── */
  .back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 300;
    width: 44px; height: 44px;
    background: var(--bg2);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s, border-color 0.2s;
    pointer-events: none;
  }
  .back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
  }
  .back-to-top:hover {
    background: var(--accent);
    border-color: var(--accent);
  }
  .back-to-top:hover svg { stroke: #000; }
  .back-to-top svg {
    width: 16px; height: 16px;
    stroke: var(--text-muted); fill: none; stroke-width: 1.5;
    transition: stroke 0.2s;
  }

  @media (max-width: 768px) {
    .legend-wrap { padding: 0 24px; }
    .legend-item { flex: 1 1 calc(50% - 1px); }
  }

  /* ── COPY BUTTON ── */
  .code-block { position: relative; overflow: hidden; }
  .code-block pre { padding: 16px 64px 16px 20px; margin: 0; white-space: pre-wrap; word-break: break-all; }
  .copy-btn { position: absolute; top: 10px; right: 10px; display: flex; align-items: center; gap: 6px; background: transparent; border: 1px solid var(--border); color: var(--text-muted); padding: 5px 10px; cursor: pointer; font-family: 'Josefin Sans', sans-serif; font-size: 9px; letter-spacing: .2em; text-transform: uppercase; font-weight: 300; transition: all .2s ease; z-index: 2; }
  .copy-btn:hover { border-color: var(--accent); color: var(--accent); }
  .copy-btn.copied { border-color: var(--accent); color: var(--accent); }
  .copy-btn svg { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 1.5; flex-shrink: 0; }
  .copy-label { line-height: 1; }

  /* ═══════════════════════════════════════
     MOBILE RESPONSIVE — additions only
     Desktop (≥769px) is unchanged
  ═══════════════════════════════════════ */

  /* Hide fixed sidebar legend on mobile — the inline legend-wrap handles navigation */
  @media (max-width: 768px) {
    .legend { display: none !important; }
    .back-to-top { bottom: 20px; right: 16px; }
  }

  @media (max-width: 600px) {
    nav { padding: 0 20px; }
    .tutorial-hero { padding: 100px 20px 44px; }
    .tutorial-content { padding: 0 20px 60px; }
    .legend-wrap { padding: 0 20px; }
    footer { padding: 24px 20px; }

    .section-heading { font-size: 18px; }
    .tut-section-header { gap: 10px; margin-bottom: 20px; }

    .legend-item { flex: 1 1 calc(50% - 1px); min-width: 0; padding: 12px 14px; }
    .legend-label { font-size: 9px; }

    .code-block pre { padding: 14px 44px 14px 14px; font-size: 11px; }
    .copy-btn { padding: 4px 8px; font-size: 8px; }

    .rename-table { font-size: 11px; }
    .rename-table th, .rename-table td { padding: 10px 12px; }

    .img-block.small img { max-width: 100%; }
    .img-block.thumb img { max-width: 100%; }

    .step { gap: 10px; }
    .step-num { font-size: 22px; width: 32px; }
  }

  @media (max-width: 420px) {
    .legend-item { flex: 1 1 100%; }
    .tutorial-hero { padding: 90px 16px 36px; }
    .tutorial-content { padding: 0 16px 48px; }
    .legend-wrap { padding: 0 16px; }
  }


.hero-sub-text { margin-top: 32px; font-size: 14px; line-height: 2; color: var(--text-muted); font-weight: 300; letter-spacing: 0.05em; max-width: 680px; }

/* ===== Utility Classes (replacing inline styles) ===== */
.pt-100 { padding-top: 100px; }
.cur-pointer { cursor: pointer; }
.cur-default { cursor: default; }
.mb-28-no-anim { margin: 0 0 28px; animation: none; }
.mb-0 { margin-bottom: 0; }
.mt-8 { margin-top: 8px; }
.mt-10 { margin-top: 10px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-28 { margin-top: 28px; }
.mt-32 { margin-top: 32px; }
.clr-accent { color: var(--accent); }
.clr-text { color: var(--text); }
.code-inline-accent { font-family: 'Source Code Pro', monospace; color: var(--accent); font-size: 11px; }
.divider-line { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); position: relative; z-index: 1; }
.table-collapse { border-collapse: collapse; }
.table-full-collapse { width: 100%; border-collapse: collapse; }

/* ===== Footer Contact ===== */
.footer-contact { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 16px; }
.footer-contact a { color: var(--accent); text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }

/* ===== Contact Section ===== */
.contact-section { padding: 80px 24px; max-width: 680px; margin: 0 auto; }
.contact-wrap { display: flex; flex-direction: column; gap: 20px; }
.contact-eyebrow { font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); font-family: 'Josefin Sans', sans-serif; font-weight: 300; }
.contact-title { font-family: 'Cormorant Garamond', serif; font-size: clamp(26px, 4vw, 38px); font-weight: 300; color: var(--text); margin: 0; }
.contact-sub { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin: 0; }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.contact-field { display: flex; flex-direction: column; gap: 6px; }
.contact-field label { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); font-family: 'Josefin Sans', sans-serif; font-weight: 300; }
.contact-field input,
.contact-field select,
.contact-field textarea { background: var(--surface); border: 1px solid var(--border); color: var(--text); padding: 12px 16px; font-size: 14px; font-family: inherit; border-radius: 4px; outline: none; resize: vertical; transition: border-color 0.2s; }
.contact-field input:focus,
.contact-field select:focus,
.contact-field textarea:focus { border-color: var(--accent); }
.contact-submit { align-self: flex-start; margin-top: 8px; }
.contact-success { padding: 16px; background: var(--surface); border: 1px solid var(--accent); border-radius: 4px; font-size: 14px; color: var(--text-muted); }
.contact-success a { color: var(--accent); }
.contact-direct { font-size: 13px; color: var(--text-muted); }
.contact-direct a { color: var(--accent); text-decoration: none; }
.contact-direct a:hover { text-decoration: underline; }