/* styles.css — pixel-faithful clone. All brand-swappable values live in main.js (BRAND). */

  :root {
    --bg: #070810;
    --card: #0f1119;
    --card-2: #131623;
    --ui: #171a27;
    --ui-2: #1b1e2c;
    --border: #242838;
    --border-2: #2e3244;
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --dim: #6b7280;
    --faint: #4b5563;
    --claude: #ff6b35;
    --claude-2: #ff8c5a;
    --claude-glow: rgba(255, 107, 53, 0.3);

    /* Per-part color tokens */
    --p1: #a78bfa;  /* purple   — Foundation */
    --p2: #fbbf24;  /* yellow   — Website */
    --p3: #60a5fa;  /* blue     — Power Features */
    --p4: #ef4444;  /* red      — Memory */
    --p5: #f59e0b;  /* amber    — Hermes Agent */
    --p6: #22c55e;  /* green    — Apps */
    --p7: #f472b6;  /* pink     — Build Anything */
    --p8: #d97706;  /* brown    — Design */
    --p9: #ff6b35;  /* orange   — Compliance */
    --p10: #facc15; /* gold     — Money */
  }

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

  body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
  }

  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='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 100;
    mix-blend-mode: overlay;
  }
  body::after {
    content: '';
    position: fixed;
    inset: 0;
    background:
      radial-gradient(900px at 15% 5%, rgba(255, 107, 53, 0.06), transparent 60%),
      radial-gradient(700px at 85% 80%, rgba(96, 165, 250, 0.05), transparent 60%);
    pointer-events: none;
    z-index: 0;
  }

  @keyframes fadeInUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
  @keyframes breathe { 0%,100%{transform:scale(1);} 50%{transform:scale(1.025);filter:brightness(1.1);} }
  @keyframes shimmerText { 0%{background-position:0%50%;} 100%{background-position:200%50%;} }
  @keyframes scroll { from{transform:translateX(0);} to{transform:translateX(-50%);} }

  /* Wrap */
  .wrap { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; padding: 60px 32px 100px; }

  /* HERO */
  .hero { text-align: center; margin-bottom: 32px; animation: fadeInUp 0.9s ease-out; }
  .hero-logo {
    width: 88px; height: 88px;
    border-radius: 20px;
    overflow: hidden;
    display: block;
    margin: 0 auto 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  }
  .hero-logo img { width: 100%; height: 100%; object-fit: cover; display: block; }

  .hero-mark {
    width: min(480px, 80vw);
    aspect-ratio: 16 / 9;
    border-radius: 20px;
    overflow: hidden;
    display: block;
    margin: 22px auto 4px;
    box-shadow: 0 0 60px rgba(255, 107, 53, 0.25), 0 14px 36px rgba(0,0,0,0.35),
                inset 0 0 0 1px rgba(255,255,255,0.06);
  }
  .hero-mark img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; display: block; }
  .hero-mark svg { width: 52px; height: 52px; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2)); }

  .hero-title {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    margin-bottom: 14px;
  }
  .hero-title .top {
    font-size: clamp(22px, 2.8vw, 36px);
    font-weight: 700; letter-spacing: -0.02em; color: var(--text);
  }
  .hero-title .main {
    font-size: clamp(40px, 6vw, 80px);
    font-weight: 900; letter-spacing: -0.04em; line-height: 0.95;
    background: linear-gradient(135deg, var(--claude-2), #ffb787, var(--claude));
    background-size: 200% 100%;
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    animation: shimmerText 5s linear infinite;
    white-space: nowrap;
  }
  .hero-title .sub {
    font-size: clamp(14px, 1.5vw, 18px);
    font-style: italic; color: var(--muted); margin-top: 6px;
  }
  .hero-meta {
    display: inline-flex; align-items: center; gap: 14px;
    padding: 10px 18px; background: rgba(255, 107, 53, 0.06);
    border: 1px solid rgba(255, 107, 53, 0.22); border-radius: 100px;
    font-family: 'JetBrains Mono', monospace; font-size: 11px;
    font-weight: 600; letter-spacing: 0.1em; color: var(--claude-2);
    text-transform: uppercase;
    margin-top: 8px;
  }
  .hero-meta strong { color: var(--text); }

  /* TOC sticky nav */
  .toc-bar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(7, 8, 16, 0.85);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin: 24px -32px 48px;
    padding: 14px 32px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .toc-bar::-webkit-scrollbar { display: none; }
  .toc-inner {
    display: flex; align-items: center; gap: 8px;
    max-width: 1200px; margin: 0 auto;
    white-space: nowrap;
  }
  .toc-label {
    font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
    font-weight: 700; letter-spacing: 0.18em; color: var(--dim);
    text-transform: uppercase; margin-right: 14px; flex-shrink: 0;
  }
  .toc-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 13px;
    font-size: 12px; font-weight: 600; color: var(--muted);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.2s;
    flex-shrink: 0;
  }
  .toc-chip:hover {
    color: var(--text); border-color: var(--border-2); transform: translateY(-1px);
  }
  .toc-chip .chip-num {
    font-family: 'JetBrains Mono', monospace; font-weight: 700;
    color: var(--accent, var(--claude));
  }
  .toc-chip[data-c="1"]  { --accent: var(--p1); }
  .toc-chip[data-c="2"]  { --accent: var(--p2); }
  .toc-chip[data-c="3"]  { --accent: var(--p3); }
  .toc-chip[data-c="4"]  { --accent: var(--p4); }
  .toc-chip[data-c="5"]  { --accent: var(--p5); }
  .toc-chip[data-c="6"]  { --accent: var(--p6); }
  .toc-chip[data-c="7"]  { --accent: var(--p7); }
  .toc-chip[data-c="8"]  { --accent: var(--p8); }
  .toc-chip[data-c="9"]  { --accent: var(--p9); }
  .toc-chip[data-c="10"] { --accent: var(--p10); }

  /* Marquee */
  .marquee-wrap {
    position: relative; margin: 0 -32px 56px; padding: 24px 0;
    overflow: hidden;
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  }
  .marquee-wrap::before, .marquee-wrap::after {
    content: ''; position: absolute; top: 0; bottom: 0; width: 120px; z-index: 2; pointer-events: none;
  }
  .marquee-wrap::before { left: 0; background: linear-gradient(90deg, var(--bg), transparent); }
  .marquee-wrap::after { right: 0; background: linear-gradient(-90deg, var(--bg), transparent); }
  .marquee { display: flex; gap: 14px; width: max-content; animation: scroll 60s linear infinite; }
  .marquee:hover { animation-play-state: paused; }
  .brand-chip {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 10px 18px 10px 10px;
    background: var(--card); border: 1px solid var(--border); border-radius: 100px;
    font-size: 13.5px; font-weight: 600; color: var(--text); white-space: nowrap;
    transition: all 0.25s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  }
  .brand-chip:hover { border-color: var(--claude); transform: translateY(-1px); }
  .brand-chip img { width: 26px; height: 26px; padding: 3px; border-radius: 7px;
                   background: rgba(255,255,255,0.04); object-fit: contain; }
  .brand-chip .em { width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center;
                    font-size: 15px; background: linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
                    border-radius: 7px; }

  /* PART section */
  .part {
    margin-bottom: 56px;
    opacity: 0; transform: translateY(28px);
    scroll-margin-top: 90px;
  }
  .part.in-view { animation: fadeInUp 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) forwards; }

  .part-head {
    display: flex; align-items: center; gap: 18px;
    padding: 22px 28px;
    background: linear-gradient(135deg, color-mix(in oklab, var(--c) 18%, transparent), transparent);
    border: 1px solid color-mix(in oklab, var(--c) 30%, var(--border));
    border-radius: 16px;
    margin-bottom: 22px;
  }
  .part-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 36px; font-weight: 800; letter-spacing: -0.02em;
    color: var(--c);
    text-shadow: 0 0 24px color-mix(in oklab, var(--c) 40%, transparent);
    line-height: 1; min-width: 80px;
  }
  .part-info { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 0; }
  .part-tools {
    display: flex; align-items: center; gap: 6px; flex-wrap: nowrap;
    justify-content: flex-end;
    flex-shrink: 0;
  }
  .part-tool {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    background: rgba(0,0,0,0.25);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 9px;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
    position: relative;
    flex-shrink: 0;
  }
  .part-tool:hover {
    background: rgba(0,0,0,0.4);
    border-color: color-mix(in oklab, var(--c) 60%, transparent);
    transform: translateY(-1px);
  }
  .part-tool img { width: 18px; height: 18px; object-fit: contain; display: block; }
  .part-tool .em { font-size: 16px; line-height: 1; }
  .part-tool.compliance {
    background: rgba(96,165,250,0.10);
    border-color: rgba(96,165,250,0.35);
    color: #93c5fd;
  }
  .part-tool.compliance svg { width: 16px; height: 16px; }
  .part-tool::after {
    content: attr(data-name);
    position: absolute; bottom: calc(100% + 6px); left: 50%;
    transform: translateX(-50%);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; font-weight: 600;
    color: var(--text);
    background: var(--card-2);
    border: 1px solid var(--border);
    padding: 3px 7px; border-radius: 5px;
    white-space: nowrap;
    opacity: 0; pointer-events: none;
    transition: opacity 0.15s ease;
  }
  .part-tool:hover::after { opacity: 1; }
  @media (max-width: 720px) {
    .part-head { flex-wrap: wrap; }
    .part-tools { max-width: 100%; justify-content: flex-start; margin-top: 8px; }
  }
  .part-info h2 {
    font-size: clamp(22px, 2.6vw, 30px);
    font-weight: 800; letter-spacing: -0.02em; color: var(--text); line-height: 1.15;
  }
  .part-info .meta {
    font-family: 'JetBrains Mono', monospace; font-size: 11px;
    color: var(--dim); letter-spacing: 0.06em; text-transform: uppercase;
  }
  .part-info .meta strong { color: var(--c); margin-right: 4px; }

  /* Outcome grid */
  .out-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  @media (max-width: 1024px) { .out-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 640px)  { .out-grid { grid-template-columns: 1fr; } }

  .out-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 20px;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    display: flex; flex-direction: column; gap: 10px;
    min-height: 140px;
  }
  .out-card:hover {
    border-color: color-mix(in oklab, var(--c) 50%, var(--border-2));
    transform: translateY(-3px);
    box-shadow: 0 12px 32px -10px color-mix(in oklab, var(--c) 30%, rgba(0,0,0,0.4));
  }
  .out-head { display: flex; align-items: baseline; gap: 10px; }
  .out-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px; font-weight: 700;
    color: var(--c);
    flex-shrink: 0;
    background: color-mix(in oklab, var(--c) 12%, transparent);
    padding: 3px 8px; border-radius: 5px;
  }
  .out-title {
    font-size: 15px; font-weight: 700; color: var(--text); line-height: 1.3;
    letter-spacing: -0.01em;
  }
  .out-card ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 5px; }
  .out-card li {
    font-size: 12.5px; color: var(--muted); line-height: 1.5;
    padding-left: 14px; position: relative;
  }
  .out-card li::before {
    content: '';
    position: absolute; left: 0; top: 8px;
    width: 4px; height: 4px; border-radius: 50%;
    background: color-mix(in oklab, var(--c) 70%, var(--dim));
  }
  /* Brand logo chips inside lesson cards */
  .card-stack {
    margin-top: 10px; padding-top: 10px;
    border-top: 1px dashed rgba(255,255,255,0.06);
    display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  }
  .stack-pill {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 4px 8px 4px 5px;
    background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 999px;
    font-size: 10.5px; font-weight: 600;
    color: var(--muted); letter-spacing: 0.01em;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
  }
  .stack-pill:hover {
    background: rgba(255,107,53,0.07);
    border-color: rgba(255,107,53,0.3);
    color: var(--text);
    transform: translateY(-1px);
  }
  .stack-pill img {
    width: 13px; height: 13px; object-fit: contain;
    display: block;
  }
  .stack-pill .em {
    width: 13px; height: 13px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 11px; line-height: 1;
  }
  .stack-pill.compliance {
    background: rgba(96,165,250,0.06);
    border-color: rgba(96,165,250,0.25);
    color: #93c5fd;
  }
  .stack-pill.compliance:hover {
    background: rgba(96,165,250,0.1);
    border-color: rgba(96,165,250,0.45);
    color: #dbeafe;
  }
  .stack-pill.compliance svg { width: 12px; height: 12px; }
  .out-card code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11.5px;
    background: var(--ui-2); padding: 1px 5px; border-radius: 3px;
    color: color-mix(in oklab, var(--c) 80%, var(--text));
  }

  /* Part connector line */
  .part-connector {
    width: 2px; height: 60px; margin: -8px auto 24px;
    background: linear-gradient(180deg, var(--c-from), var(--c-to));
    border-radius: 2px;
    box-shadow: 0 0 18px color-mix(in oklab, var(--c-from) 50%, transparent);
    opacity: 0.5;
  }

  /* Bonus files */
  .bonus {
    margin-top: 80px;
    padding: 36px 36px 32px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.06), var(--card));
    border: 1px solid rgba(255, 107, 53, 0.25);
    border-radius: 18px;
    position: relative;
    overflow: hidden;
  }
  .bonus::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--claude), transparent);
    opacity: 0.6;
  }
  .bonus-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 8px; }
  .bonus-head h2 { font-size: 24px; font-weight: 800; letter-spacing: -0.02em; }
  .bonus-head .bag {
    font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700;
    letter-spacing: 0.14em; color: var(--claude); text-transform: uppercase;
    padding: 3px 9px; background: rgba(255,107,53,0.1);
    border: 1px solid rgba(255,107,53,0.3); border-radius: 4px;
  }
  .bonus p { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; font-style: italic; }
  .bonus-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
  }
  @media (max-width: 640px) { .bonus-grid { grid-template-columns: 1fr; } }
  .bonus-item {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 13.5px; color: var(--text);
    transition: all 0.2s;
  }
  .bonus-item:hover { border-color: rgba(255,107,53,0.4); background: rgba(255,107,53,0.04); transform: translateY(-1px); }
  .bonus-check {
    width: 18px; height: 18px; flex-shrink: 0;
    border: 1.5px solid var(--border-2);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px;
    color: var(--claude);
  }

  /* ====== Memory Operating System — embedded tab ====== */
  .mem-os {
    position: relative;
    margin: 0 0 18px;
    padding: 16px 18px 18px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: linear-gradient(180deg, var(--card-2), var(--card));
    overflow: hidden;
  }
  .mem-os-head {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap; margin-bottom: 12px;
  }
  .mem-os-head-left { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
  .mem-os-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; font-weight: 700;
    color: #4ade80; letter-spacing: 0.16em; text-transform: uppercase;
    padding: 4px 10px;
    border: 1px solid rgba(34,197,94,0.3);
    border-radius: 999px;
    background: rgba(34,197,94,0.06);
  }
  .mem-os-eyebrow .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: #22c55e; box-shadow: 0 0 10px #22c55e;
    animation: pulse 2s ease-in-out infinite;
  }
  .mem-os-title {
    font-size: 14px; font-weight: 700; color: var(--text);
    letter-spacing: -0.01em; line-height: 1.2;
  }
  .mem-os-title .accent { color: #4ade80; }
  .mem-os-stats {
    display: inline-flex; gap: 14px; flex-wrap: wrap;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px; color: var(--dim);
  }
  .mem-os-stats strong { color: var(--text); font-weight: 700; }

  .mem-os-canvas {
    position: relative;
    height: 280px;
    border: 1px solid var(--border-2);
    border-radius: 10px;
    background:
      radial-gradient(50% 50% at 50% 50%, rgba(34,197,94,0.08), transparent 65%),
      #0a0c14;
    overflow: hidden;
  }
  .mem-os-canvas::before {
    content: '';
    position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.45;
    pointer-events: none;
  }

  .mem-edges {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    pointer-events: none;
  }
  .mem-edges line { stroke: rgba(255,255,255,0.12); stroke-width: 1; fill: none; }
  .mem-edges line.active { stroke: rgba(255,107,53,0.55); stroke-width: 1.3; filter: drop-shadow(0 0 4px rgba(255,107,53,0.55)); }
  .mem-edges line.warm   { stroke: rgba(251,191,36,0.4); stroke-width: 1.1; filter: drop-shadow(0 0 3px rgba(251,191,36,0.35)); }

  /* Memory Core */
  .mem-core {
    position: absolute; top: 50%; left: 50%;
    width: 56px; height: 56px;
    margin: -28px 0 0 -28px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #86efac, #15803d);
    box-shadow:
      0 0 0 2px rgba(34,197,94,0.18),
      0 0 36px rgba(34,197,94,0.55),
      0 0 80px rgba(34,197,94,0.25);
    z-index: 5;
    animation: corePulse 3.2s ease-in-out infinite;
    display: flex; align-items: center; justify-content: center;
    font-size: 9px; font-weight: 800; color: rgba(0,0,0,0.55);
    letter-spacing: 0.06em; text-transform: uppercase;
  }
  @keyframes corePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.06); }
  }

  /* Workspace nodes (logo discs) */
  .mem-ws {
    position: absolute;
    width: 34px; height: 34px;
    margin: -17px 0 0 -17px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #fff3c4, #1a1d2a);
    box-shadow:
      0 0 0 1.5px rgba(251,191,36,0.5),
      0 0 18px rgba(251,191,36,0.45);
    z-index: 3;
    animation: wsBob 6s ease-in-out infinite;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
  }
  .mem-ws.lg { width: 42px; height: 42px; margin: -21px 0 0 -21px; box-shadow: 0 0 0 1.5px rgba(251,191,36,0.55), 0 0 24px rgba(251,191,36,0.55); }
  .mem-ws img {
    width: 60%; height: 60%; object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5));
  }
  .mem-ws .em { font-size: 16px; line-height: 1; }
  .mem-ws.lg .em { font-size: 20px; }
  @keyframes wsBob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
  }
  .mem-ws-label {
    position: absolute; top: calc(100% + 4px); left: 50%;
    transform: translateX(-50%);
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px; font-weight: 600;
    color: rgba(251,191,36,0.85);
    letter-spacing: 0.06em; text-transform: uppercase;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0,0,0,0.7);
  }

  /* File nodes (diamonds) */
  .mem-file {
    position: absolute;
    width: 10px; height: 10px;
    margin: -5px 0 0 -5px;
    background: #a78bfa;
    transform: rotate(45deg);
    box-shadow: 0 0 8px rgba(167,139,250,0.6);
    z-index: 2;
  }
  .mem-file.dim { background: #6b7280; box-shadow: 0 0 6px rgba(107,114,128,0.4); }
  .mem-file-label {
    position: absolute;
    transform: rotate(-45deg) translate(14px, -2px);
    transform-origin: top left;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px; color: rgba(167,139,250,0.85);
    letter-spacing: 0.02em;
    white-space: nowrap;
    pointer-events: none;
  }

  .mem-os-legend {
    display: flex; gap: 16px; flex-wrap: wrap;
    margin-top: 12px;
    font-size: 10px; color: var(--muted);
    font-family: 'JetBrains Mono', monospace; letter-spacing: 0.04em;
  }
  .mem-os-legend .item { display: inline-flex; align-items: center; gap: 6px; }
  .mem-os-legend .sw { width: 8px; height: 8px; border-radius: 50%; }
  .mem-os-legend .sw.diamond { transform: rotate(45deg); border-radius: 1px; }
  .mem-os-legend .sw.line { width: 14px; height: 2px; border-radius: 0; }

  @media (max-width: 720px) {
    .mem-os-canvas { height: 240px; }
    .mem-ws-label { display: none; }
    .mem-file-label { display: none; }
  }

  /* ====== Unlock Now CTA ====== */
  .unlock-section {
    margin-top: 60px;
    display: flex;
    justify-content: center;
    opacity: 0; animation: fadeIn 0.9s ease 0.2s forwards;
  }
  .unlock-avatar {
    width: 260px;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.14);
    box-shadow:
      0 18px 40px -14px rgba(0,0,0,0.55),
      0 0 0 1px rgba(255,255,255,0.04) inset;
    margin-bottom: 6px;
  }
  @property --unlock-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
  }
  .unlock-cta {
    position: relative;
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    padding: 34px 56px;
    max-width: 720px; width: 100%;
    text-decoration: none;
    border-radius: 20px;
    border: 0;
    background:
      radial-gradient(55% 80% at 12% 0%,  rgba(167,139,250,0.18), transparent 70%),
      radial-gradient(55% 80% at 88% 0%,  rgba(96,165,250,0.18),  transparent 70%),
      radial-gradient(65% 85% at 50% 110%, rgba(255,107,53,0.16), transparent 70%),
      radial-gradient(40% 60% at 50% 50%, rgba(134,239,172,0.06), transparent 75%),
      linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
    box-shadow:
      0 22px 60px -22px rgba(167,139,250,0.32),
      0 22px 60px -22px rgba(96,165,250,0.24),
      0 14px 40px -18px rgba(255,107,53,0.30),
      0 14px 40px -18px rgba(251,113,133,0.18),
      inset 0 1px 0 rgba(255,255,255,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
    overflow: hidden;
    isolation: isolate;
  }
  /* Rotating multicolor gradient border */
  .unlock-cta::after {
    content: '';
    position: absolute; inset: 0;
    border-radius: inherit;
    padding: 1.5px;
    background: conic-gradient(from var(--unlock-angle, 0deg),
      #A78BFA 0deg,
      #60A5FA 60deg,
      #34D399 120deg,
      #FCD34D 180deg,
      #FB7185 240deg,
      #F472B6 300deg,
      #A78BFA 360deg);
    -webkit-mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
            mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    z-index: 2;
    filter: saturate(1.1);
    animation: unlock-spin 8s linear infinite;
  }
  @keyframes unlock-spin {
    to { --unlock-angle: 360deg; }
  }
  /* Inner hover-glow stays as ::before */
  .unlock-cta::before {
    content: '';
    position: absolute; inset: 0;
    background:
      radial-gradient(40% 60% at 30% 120%, rgba(167,139,250,0.22), transparent 70%),
      radial-gradient(40% 60% at 70% 120%, rgba(96,165,250,0.22),  transparent 70%);
    opacity: 0; transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
  }
  .unlock-cta:hover {
    transform: translateY(-3px);
    filter: saturate(1.05) brightness(1.03);
    box-shadow:
      0 28px 70px -20px rgba(167,139,250,0.48),
      0 28px 70px -20px rgba(96,165,250,0.36),
      0 18px 50px -18px rgba(255,107,53,0.40),
      0 18px 50px -18px rgba(251,113,133,0.28),
      inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .unlock-cta:hover::after { animation-duration: 4s; }
  .unlock-cta:hover::before { opacity: 1; }
  .unlock-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 600;
    color: var(--claude); letter-spacing: 0.18em; text-transform: uppercase;
  }
  .unlock-eyebrow .pulse-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--claude);
    box-shadow: 0 0 12px rgba(255,107,53,0.8);
    animation: pulse 2s ease-in-out infinite;
  }
  .unlock-title {
    font-size: 36px; font-weight: 800;
    color: var(--text); letter-spacing: -0.02em;
    display: inline-flex; align-items: center; gap: 14px;
  }
  .unlock-title .arrow {
    color: var(--claude);
    transition: transform 0.3s ease;
  }
  .unlock-cta:hover .unlock-title .arrow { transform: translateX(6px); }
  .unlock-lede {
    font-size: 17px; font-weight: 600;
    color: var(--text); text-align: center;
    line-height: 1.45; letter-spacing: -0.01em;
    max-width: 540px;
    background: linear-gradient(90deg, #A78BFA, #FFFFFF 45%, #FFB071);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .unlock-plus {
    display: inline-flex; align-items: baseline; gap: 8px;
    font-size: 15.5px; font-weight: 600;
    color: var(--text); text-align: center;
    line-height: 1.45; letter-spacing: -0.01em;
    max-width: 540px;
  }
  .unlock-plus .plus-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px; font-weight: 700;
    letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--claude);
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(255,107,53,0.10);
    border: 1px solid rgba(255,107,53,0.30);
    transform: translateY(-1px);
  }
  .unlock-sub {
    font-size: 14.5px; color: var(--muted);
    text-align: center; line-height: 1.55;
    max-width: 520px;
  }
  .unlock-sub strong { color: var(--text); font-weight: 700; }
  @media (max-width: 640px) {
    .unlock-cta { padding: 24px 24px; }
    .unlock-title { font-size: 28px; }
  }

  /* ====== Full Stack Logo Gallery ====== */
  .stack-section {
    margin-top: 72px;
    margin-bottom: 8px;
    padding: 36px 28px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background:
      radial-gradient(80% 60% at 50% 0%, rgba(255,107,53,0.06), transparent 60%),
      linear-gradient(180deg, var(--card-2), var(--card));
    opacity: 0; animation: fadeIn 1s ease 0.4s forwards;
  }
  .stack-head { text-align: center; margin-bottom: 26px; }
  .stack-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 600; color: var(--claude);
    letter-spacing: 0.18em; text-transform: uppercase;
    padding: 6px 14px;
    border: 1px solid rgba(255,107,53,0.3);
    border-radius: 999px;
    background: rgba(255,107,53,0.06);
  }
  .stack-title {
    font-size: 30px; font-weight: 800;
    color: var(--text); letter-spacing: -0.02em;
    margin-top: 14px; line-height: 1.15;
  }
  .stack-title .accent { color: var(--claude); }
  .stack-sub {
    font-size: 14px; color: var(--muted);
    max-width: 540px; margin: 10px auto 0; line-height: 1.55;
  }
  .stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
    gap: 10px;
    margin-top: 8px;
  }
  .stack-tile {
    position: relative;
    padding: 18px 10px 12px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: 14px;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  }
  .stack-tile:hover {
    border-color: var(--claude);
    background: rgba(255,107,53,0.05);
    transform: translateY(-3px);
    box-shadow: 0 14px 28px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,107,53,0.15);
  }
  .stack-tile img {
    width: 36px; height: 36px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
  }
  .stack-tile .em {
    width: 36px; height: 36px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 28px; line-height: 1;
  }
  .stack-tile .label {
    font-size: 11.5px; font-weight: 600;
    color: var(--text); text-align: center;
    letter-spacing: 0.01em;
  }

  /* Footer — Skool community card */
  .skool-card {
    margin-top: 72px;
    position: relative;
    padding: 44px 40px 40px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background:
      radial-gradient(120% 140% at 0% 0%, rgba(255,107,53,0.10), transparent 55%),
      radial-gradient(120% 140% at 100% 100%, rgba(255,107,53,0.08), transparent 55%),
      linear-gradient(180deg, var(--card-2), var(--card));
    overflow: hidden;
    opacity: 0; animation: fadeIn 1s ease 0.8s forwards;
  }
  .skool-card::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(255,107,53,0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,107,53,0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    pointer-events: none;
  }
  .skool-card > * { position: relative; z-index: 1; }

  .skool-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 600;
    color: var(--claude);
    letter-spacing: 0.18em; text-transform: uppercase;
    padding: 6px 12px;
    border: 1px solid rgba(255,107,53,0.35);
    border-radius: 999px;
    background: rgba(255,107,53,0.08);
    margin-bottom: 18px;
  }
  .skool-eyebrow .dot {
    width: 6px; height: 6px; background: var(--claude); border-radius: 50%;
    box-shadow: 0 0 10px var(--claude); animation: pulse 2s ease-in-out infinite;
  }

  .skool-title {
    font-size: 32px; font-weight: 800; letter-spacing: -0.02em;
    color: var(--text); line-height: 1.15;
    margin-bottom: 10px;
  }
  .skool-title .accent { color: var(--claude); }
  .skool-sub {
    font-size: 15px; color: var(--muted); line-height: 1.5;
    max-width: 620px;
    margin-bottom: 28px;
  }

  .skool-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 32px;
  }
  .skool-stat {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
  }
  .skool-stat:hover {
    border-color: rgba(255,107,53,0.4);
    background: rgba(255,107,53,0.04);
    transform: translateY(-2px);
  }
  .skool-stat-icon {
    flex-shrink: 0;
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(255,107,53,0.10);
    border: 1px solid rgba(255,107,53,0.25);
    display: flex; align-items: center; justify-content: center;
    color: var(--claude);
  }
  .skool-stat-icon svg { width: 18px; height: 18px; }
  .skool-stat-icon.avatar {
    background: transparent; border: 1.5px solid rgba(255,107,53,0.5);
    overflow: hidden; padding: 0;
  }
  .skool-stat-icon.avatar img { width: 100%; height: 100%; object-fit: cover; }
  .skool-stat-text {
    display: flex; flex-direction: column; min-width: 0;
  }
  .skool-stat-label {
    font-size: 11px; color: var(--dim);
    text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600;
  }
  .skool-stat-value {
    font-size: 15px; color: var(--text); font-weight: 700;
    white-space: nowrap;
  }

  /* ====== Skool-style feed (light cards on dark) ====== */
  .skool-feed-head {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap;
    margin: 8px 0 16px;
  }
  .skool-feed-title {
    font-size: 13px; font-weight: 700;
    color: var(--text); letter-spacing: 0.02em;
    display: inline-flex; align-items: center; gap: 10px;
  }
  .skool-feed-title::before { content: ''; width: 24px; height: 1px; background: var(--claude); }
  .skool-feed-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; color: var(--dim);
    letter-spacing: 0.12em; text-transform: uppercase;
  }

  .skool-marquee {
    position: relative;
    overflow: hidden;
    margin: 0 -28px 32px;
    padding: 8px 0;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 80px, #000 calc(100% - 80px), transparent 100%);
            mask-image: linear-gradient(90deg, transparent 0, #000 80px, #000 calc(100% - 80px), transparent 100%);
  }
  .skool-feed {
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-start;
    gap: 14px;
    width: max-content;
    padding: 0 28px;
    animation: skool-scroll 90s linear infinite;
  }
  .skool-marquee:hover .skool-feed { animation-play-state: paused; }
  .skool-feed .skool-post {
    width: 320px;
    flex-shrink: 0;
    height: auto;
    align-self: flex-start;
  }
  .skool-feed .skool-post .skool-actions { display: none; }
  @keyframes skool-scroll {
    from { transform: translateX(0); }
    to   { transform: translateX(calc(-50% - 7px)); }
  }
  /* Single testimonial: no duplication/scroll — center the one card cleanly */
  .skool-marquee.single {
    -webkit-mask-image: none;
            mask-image: none;
  }
  .skool-feed.single {
    width: 100%;
    justify-content: center;
    animation: none;
  }

  .skool-post {
    background: #FFFFFF;
    border: 1px solid #E4E4E4;
    border-radius: 10px;
    padding: 16px;
    display: flex; flex-direction: column; gap: 12px;
    color: #1F1F1F;
    font-family: 'Roboto', -apple-system, sans-serif;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  .skool-post:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(0,0,0,0.35);
  }

  .skool-post-header {
    display: flex; align-items: center; gap: 12px;
  }

  .skool-avatar {
    position: relative;
    width: 40px; height: 40px;
    border-radius: 50%;
    overflow: visible;
    flex-shrink: 0;
  }
  .skool-avatar .photo {
    position: relative;
    width: 40px; height: 40px;
    border-radius: 50%;
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 13px; letter-spacing: 0.02em;
    font-family: 'Roboto', sans-serif;
  }
  .skool-avatar .photo > span {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
  }
  .skool-avatar .photo img {
    position: absolute; inset: 0;
    width: 100%; height: 100%; object-fit: cover;
    display: block;
  }
  .skool-level {
    position: absolute;
    bottom: -2px; left: -3px;
    min-width: 18px; height: 18px; padding: 0 4px;
    background: #4A6BF5;
    border: 2px solid #fff;
    border-radius: 999px;
    display: flex; align-items: center; justify-content: center;
    font-size: 10px; font-weight: 700; color: #fff;
    font-family: 'Roboto', sans-serif;
  }

  .skool-who { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
  .skool-name { font-size: 14px; font-weight: 700; color: #1F1F1F; line-height: 1.2; }
  .skool-when {
    font-size: 12px; color: #717171; line-height: 1.4;
    display: inline-flex; align-items: center; gap: 6px;
  }
  .skool-when .dot { color: #BDBDBD; }

  .skool-icons {
    display: inline-flex; align-items: center; gap: 12px;
    color: #B0B0B0;
  }
  .skool-icons svg { width: 16px; height: 16px; display: block; }

  .skool-title {
    font-size: 18px; font-weight: 700; color: #1F1F1F;
    line-height: 1.3; margin: -2px 0 0;
  }
  .skool-body {
    font-size: 14px; color: #2D2D2D; line-height: 1.55;
  }
  .skool-body .mention { color: #1B66F0; }

  .skool-actions {
    margin-top: auto;
    padding-top: 4px;
    display: flex; align-items: center; gap: 18px;
    font-size: 13px; color: #717171;
  }
  .skool-actions .item {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 8px; border-radius: 8px;
  }
  .skool-actions svg { width: 16px; height: 16px; }

  @media (max-width: 620px) {
    .skool-feed .skool-post { width: 280px; }
  }

  .skool-cta-row {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 12px; flex-wrap: wrap; text-align: center;
    margin-top: 8px;
  }
  .skool-cta {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 22px;
    background: var(--claude);
    color: #fff !important;
    font-size: 15px; font-weight: 700;
    text-decoration: none;
    border-radius: 12px;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 8px 24px rgba(255,107,53,0.25);
  }
  .skool-cta:hover {
    background: var(--claude-2);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255,107,53,0.35);
  }
  .skool-cta .arrow { transition: transform 0.2s ease; }
  .skool-cta:hover .arrow { transform: translateX(4px); }

  .skool-note {
    font-size: 13px; color: var(--dim);
    display: inline-flex; align-items: center; gap: 8px;
  }
  .skool-note .pulse-dot {
    width: 6px; height: 6px; background: #22c55e; border-radius: 50%;
    box-shadow: 0 0 8px rgba(34,197,94,0.6); animation: pulse 2s ease-in-out infinite;
  }

  @media (max-width: 720px) {
    .skool-card { padding: 32px 24px; }
    .skool-title { font-size: 24px; }
    .skool-stats { grid-template-columns: repeat(2, 1fr); }
  }

  .footer {
    margin-top: 32px; padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 20px;
    opacity: 0; animation: fadeIn 1s ease 1s forwards;
  }
  .footer-sig { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--dim); letter-spacing: 0.1em; }
  .footer-pin {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--claude); font-weight: 600;
  }
  .footer-pin .dot {
    width: 6px; height: 6px; background: var(--claude); border-radius: 50%;
    box-shadow: 0 0 10px var(--claude); animation: pulse 2s ease-in-out infinite;
  }

  /* Back to top */
  .back-top {
    position: fixed; bottom: 28px; right: 28px; z-index: 60;
    width: 44px; height: 44px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    cursor: pointer; opacity: 0; pointer-events: none; transition: opacity 0.3s, transform 0.3s, border-color 0.3s;
    color: var(--muted); font-size: 16px;
    text-decoration: none;
  }
  .back-top.visible { opacity: 1; pointer-events: auto; }
  .back-top:hover { border-color: var(--claude); color: var(--claude); transform: translateY(-3px); }

  /* ===== cross-site toggle (DRAFT) ===== */
  .site-switch{ position:sticky; top:0; z-index:90; display:flex; align-items:center; justify-content:center; gap:8px;
    padding:11px 14px; background:rgba(7,8,16,0.94); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border); }
  .site-switch .ss-label{ font-family:'JetBrains Mono',monospace; font-size:10px; font-weight:700; letter-spacing:0.18em;
    text-transform:uppercase; color:var(--dim); margin-right:6px; }
  .ss-pill{ display:inline-flex; align-items:center; gap:7px; padding:8px 20px; border-radius:100px;
    font-family:'JetBrains Mono',monospace; font-size:11.5px; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
    text-decoration:none; color:var(--muted); border:1px solid var(--border); background:rgba(255,255,255,0.03); transition:all .2s; }
  .ss-pill:hover{ color:var(--text); border-color:var(--border-2); transform:translateY(-1px); }
  .ss-pill.active{ color:#fff; cursor:default; background:#ff6b35; border-color:#ff6b35; box-shadow:0 6px 20px rgba(255,107,53,0.4); }
  .ss-pill .dotmark{ width:7px; height:7px; border-radius:50%; background:currentColor; opacity:0.85; }
  .toc-bar{ top:46px; }