:root {
  --bg: #0B1220;
  --bg-2: #0F172A;
  --bg-3: #111a2e;
  --surface: rgba(255,255,255,0.04);
  --surface-2: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.09);
  --border-2: rgba(255,255,255,0.14);
  --text: #F5F5F4;
  --text-dim: #A8B0BA;
  --text-mute: #6B7280;
  --mint: #6EE7B7;
  --mint-glow: rgba(110, 231, 183, 0.25);
  --violet: #A78BFA;
  --violet-glow: rgba(167, 139, 250, 0.22);
  --red: #F87171;
  --amber: #FBBF24;
  --radius: 14px;
  --radius-lg: 22px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, system-ui, sans-serif;
  --display: "Instrument Serif", "Inter", serif;
}

[data-theme="light"] {
  --bg: #F7F5F0;
  --bg-2: #EFECE4;
  --bg-3: #E8E4D9;
  --surface: rgba(11, 18, 32, 0.03);
  --surface-2: rgba(11, 18, 32, 0.05);
  --border: rgba(11, 18, 32, 0.10);
  --border-2: rgba(11, 18, 32, 0.18);
  --text: #0B1220;
  --text-dim: #4A5568;
  --text-mute: #8A93A2;
  --mint: #0E8A5F;
  --mint-glow: rgba(14, 138, 95, 0.20);
  --violet: #6D28D9;
  --violet-glow: rgba(109, 40, 217, 0.18);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background decoration */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 20%, transparent 75%);
  opacity: 0.5;
}
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(600px circle at 15% 10%, var(--mint-glow), transparent 50%),
    radial-gradient(700px circle at 85% 30%, var(--violet-glow), transparent 55%);
  opacity: 0.9;
}

main { position: relative; z-index: 1; }

/* Type */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--mint);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--mint);
}
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.08; font-weight: 600; }
h1 { font-size: clamp(42px, 6vw, 78px); }
h2 { font-size: clamp(32px, 4.2vw, 52px); }
h3 { font-size: clamp(20px, 1.8vw, 24px); }
.lede { color: var(--text-dim); font-size: clamp(16px, 1.25vw, 19px); max-width: 58ch; }

.mint { color: var(--mint); }
.violet { color: var(--violet); }

/* Layout */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
section { position: relative; padding: 120px 0; }
@media (max-width: 720px) { section { padding: 80px 0; } }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: 1280px;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}
.logo-mark {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--mint), #34d399);
  border-radius: 8px;
  color: #0B1220;
  box-shadow: 0 0 0 1px var(--border-2), 0 8px 24px -8px var(--mint-glow);
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color .15s;
}
.nav-links a:hover { color: var(--text); }
@media (max-width: 760px) { .nav-links .hide-sm { display: none; } }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--sans);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s, background .15s, border-color .15s, box-shadow .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--mint);
  color: #0B1220;
  box-shadow: 0 8px 24px -10px var(--mint-glow), inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 34px -10px var(--mint-glow), inset 0 1px 0 rgba(255,255,255,0.4); }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-2);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--border-2); }
.btn-lg { padding: 14px 24px; font-size: 15px; }

/* Glass card */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.14), rgba(255,255,255,0) 40%, rgba(255,255,255,0) 60%, rgba(255,255,255,0.06));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

/* Tweaks panel */
.tweaks {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 200;
  padding: 14px 16px;
  border-radius: 14px;
  background: color-mix(in oklab, var(--bg-2) 80%, transparent);
  border: 1px solid var(--border-2);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
  display: none;
  min-width: 220px;
}
.tweaks.show { display: block; }
.tweaks-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.tweaks-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 6px 0;
}
.tweaks-row label { font-size: 13px; color: var(--text); }
.tweaks-switch {
  width: 38px; height: 22px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: 11px;
  position: relative;
  cursor: pointer;
  transition: background .2s;
}
.tweaks-switch::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: var(--text);
  border-radius: 50%;
  transition: transform .2s;
}
.tweaks-switch.on { background: var(--mint); }
.tweaks-switch.on::after { transform: translateX(16px); background: #0B1220; }

/* Toast (for blocked actions) */
.toast-stack {
  position: fixed;
  bottom: 90px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  background: color-mix(in oklab, var(--bg-2) 90%, transparent);
  border: 1px solid var(--border-2);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.6);
  font-size: 13px;
  min-width: 260px;
  transform: translateX(calc(100% + 40px));
  animation: toastIn .35s cubic-bezier(.2,.9,.3,1.2) forwards;
}
.toast.out { animation: toastOut .25s ease-in forwards; }
.toast-icon {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: rgba(248, 113, 113, 0.14);
  color: var(--red);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.toast-title { font-weight: 600; color: var(--text); font-size: 13px; }
.toast-sub { color: var(--text-dim); font-size: 12px; margin-top: 2px; }
@keyframes toastIn { to { transform: translateX(0); } }
@keyframes toastOut { to { transform: translateX(calc(100% + 40px)); opacity: 0; } }

/* Utility */
.mono { font-family: var(--mono); }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* Hero */
.hero {
  padding: 72px 0 140px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
}
.hero h1 { margin: 20px 0 22px; }
.hero h1 .shimmer {
  background: linear-gradient(100deg, var(--text) 30%, var(--mint) 50%, var(--text) 70%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: -220% 0; } }
.hero-ctas { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.stat-num { font-size: 22px; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.stat-label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-mute); margin-top: 2px; }

/* Hero demo viewer */
.demo-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 540px;
  margin-left: auto;
}
@media (max-width: 960px) { .demo-stage { margin: 0 auto; } }

.viewer {
  position: absolute;
  inset: 10% 6% 18% 10%;
  border-radius: 14px;
  background: linear-gradient(180deg, #0F1A2E, #0A1223);
  border: 1px solid var(--border-2);
  box-shadow:
    0 50px 80px -30px rgba(0,0,0,0.8),
    0 0 0 1px rgba(255,255,255,0.03) inset;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: viewerFloat 7s ease-in-out infinite;
  cursor: context-menu;
  user-select: none;
}
@keyframes viewerFloat {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-10px) rotate(-1deg); }
}
.viewer-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.viewer-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.12); }
.viewer-title {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-mute);
  margin-left: 8px;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}
.viewer-title svg { color: var(--mint); }
.viewer-tools {
  display: flex;
  gap: 4px;
}
.vtool {
  width: 22px; height: 22px;
  border-radius: 5px;
  display: grid; place-items: center;
  color: var(--text-mute);
  position: relative;
}
.vtool.blocked {
  opacity: 0.4;
}
.vtool.blocked::after {
  content: "";
  position: absolute;
  left: 3px; right: 3px; top: 50%;
  height: 1.5px;
  background: var(--red);
  transform: rotate(-45deg);
}
.viewer-body {
  flex: 1;
  padding: 18px;
  overflow: hidden;
  position: relative;
}
.page-content {
  font-family: "Georgia", serif;
  font-size: 10px;
  line-height: 1.55;
  color: rgba(245, 245, 244, 0.72);
  columns: auto;
}
.page-content h4 { font-family: var(--sans); font-size: 11px; color: var(--text); margin-bottom: 8px; letter-spacing: 0; }
.page-content p { margin-bottom: 6px; }
.page-content .line {
  height: 5px;
  background: rgba(245,245,244,0.12);
  border-radius: 2px;
  margin-bottom: 5px;
}
.page-content .line.short { width: 60%; }
.page-content .line.med { width: 85%; }
.page-content .wm {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: rgba(110, 231, 183, 0.14);
  transform: rotate(-28deg);
  text-transform: uppercase;
  white-space: nowrap;
}

/* Floating media cards in hero */
.float-card {
  position: absolute;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  box-shadow: 0 20px 40px -14px rgba(0,0,0,0.5);
  animation: floaty 8s ease-in-out infinite;
}
.float-card .ftype {
  width: 32px; height: 38px;
  border-radius: 6px;
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #0B1220;
  flex-shrink: 0;
}
.ftype.pdf { background: linear-gradient(135deg, #FCA5A5, #F87171); }
.ftype.epub { background: linear-gradient(135deg, var(--mint), #34D399); }
.ftype.mp4 { background: linear-gradient(135deg, var(--violet), #7C3AED); }
.ftype.mp3 { background: linear-gradient(135deg, #FBBF24, #F59E0B); }
.ftype.docx { background: linear-gradient(135deg, #93C5FD, #3B82F6); }
.float-card .fname { color: var(--text); font-weight: 500; font-size: 12px; }
.float-card .fmeta { color: var(--text-mute); font-family: var(--mono); font-size: 10px; margin-top: 2px; }
.fc-1 { top: 4%; left: -6%; animation-delay: -1s; }
.fc-2 { top: 14%; right: -4%; animation-delay: -3s; }
.fc-3 { bottom: 18%; left: -10%; animation-delay: -2s; }
.fc-4 { bottom: 6%; right: -6%; animation-delay: -4s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(var(--r, 0deg)); }
  50% { transform: translateY(-12px) rotate(var(--r, 0deg)); }
}
.fc-1 { --r: -3deg; }
.fc-2 { --r: 4deg; }
.fc-3 { --r: -5deg; }
.fc-4 { --r: 3deg; }

/* Orbiting shield */
.orbit {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px dashed var(--border-2);
  animation: spin 24s linear infinite;
}
.orbit-ring.inner { inset: 12%; animation-duration: 32s; animation-direction: reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
.shield-badge {
  position: absolute;
  top: -8%;
  left: 50%;
  width: 54px; height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--mint), #34D399);
  color: #0B1220;
  display: grid; place-items: center;
  box-shadow: 0 20px 40px -10px var(--mint-glow), inset 0 1px 0 rgba(255,255,255,0.4);
  transform: translateX(-50%);
  z-index: 3;
}

/* Try-it hint */
.try-hint {
  position: absolute;
  bottom: 2%;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  background: color-mix(in oklab, var(--bg-2) 85%, transparent);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  z-index: 4;
  white-space: nowrap;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}
.kbd {
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-bottom-width: 2px;
  color: var(--text);
}
.try-hint .pulse {
  width: 6px; height: 6px;
  background: var(--mint);
  border-radius: 50%;
  animation: pulse 1.6s ease-in-out infinite;
  align-self: center;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--mint-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

/* Section header */
.sec-head {
  max-width: 720px;
  margin-bottom: 64px;
}
.sec-head h2 { margin: 14px 0 14px; }
.sec-head p { color: var(--text-dim); font-size: 17px; }

/* How it works */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
}
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.step {
  padding: 28px;
  position: relative;
}
.step-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mint);
  margin-bottom: 18px;
}
.step-visual {
  height: 160px;
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent);
  border: 1px solid var(--border);
  margin-bottom: 22px;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.step h3 { margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 14px; }
.step-code {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  background: rgba(0,0,0,0.25);
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 14px;
}
.step-code .tag { color: var(--mint); }
.step-code .attr { color: var(--violet); }
.step-code .val { color: var(--amber); }

/* Step 1: upload visual */
.upload-vis {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 14px;
}
.upload-slot {
  width: 100%;
  height: 32px;
  border: 1.5px dashed var(--border-2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-mute);
  position: relative;
  overflow: hidden;
}
.upload-slot.filled {
  border-style: solid;
  border-color: rgba(110, 231, 183, 0.4);
  background: rgba(110, 231, 183, 0.05);
  color: var(--text);
}
.upload-slot .pbar {
  position: absolute;
  left: 0; bottom: 0;
  height: 2px;
  background: var(--mint);
  animation: pbar 2.4s ease-in-out infinite;
}
@keyframes pbar {
  0% { width: 0; }
  80% { width: 100%; }
  100% { width: 100%; opacity: 0; }
}

/* Step 2: role gates */
.gate-vis {
  display: flex;
  gap: 10px;
  padding: 14px;
  width: 100%;
  justify-content: center;
}
.gate-pill {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}
.gate-pill.pass { border-color: rgba(110, 231, 183, 0.5); background: rgba(110, 231, 183, 0.08); color: var(--mint); }
.gate-pill.deny { border-color: rgba(248, 113, 113, 0.45); background: rgba(248, 113, 113, 0.06); color: var(--red); }

/* Step 3: viewer mini */
.mini-viewer {
  width: 82%;
  height: 72%;
  background: #0B1220;
  border-radius: 6px;
  border: 1px solid var(--border-2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: rotate(-1.5deg);
}
.mini-viewer-bar {
  height: 18px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 6px;
}
.mini-viewer-body {
  flex: 1;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.mini-line { height: 2px; background: rgba(255,255,255,0.12); border-radius: 1px; }
.mini-line.s { width: 60%; }

/* Demo section */
.demo-section {
  padding: 140px 0;
}
.demo-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, #0F1A2E, #0A1223);
  border: 1px solid var(--border-2);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.7);
}
.demo-frame-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-mute);
}
.demo-dots { display: flex; gap: 6px; }
.demo-dot { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.demo-body {
  display: grid;
  grid-template-columns: 1fr 320px;
  min-height: 520px;
}
@media (max-width: 900px) {
  .demo-body { grid-template-columns: 1fr; }
}
.pdf-canvas {
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
  border-right: 1px solid var(--border);
}
.pdf-page {
  background: linear-gradient(180deg, #F8F5EF, #EFECE4);
  color: #1a1a1a;
  border-radius: 6px;
  padding: 32px 36px;
  font-family: "Georgia", serif;
  line-height: 1.6;
  font-size: 13px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.4);
  min-height: 440px;
  user-select: none;
}
.pdf-page h3 { font-size: 18px; color: #0B1220; margin-bottom: 12px; font-family: "Georgia", serif; font-weight: 700; letter-spacing: 0; }
.pdf-page p { margin-bottom: 10px; }
.pdf-page .pline {
  height: 7px;
  background: rgba(11, 18, 32, 0.18);
  border-radius: 3px;
  margin-bottom: 7px;
}
.pdf-page .pline.s { width: 58%; }
.pdf-page .pline.m { width: 82%; }
.pdf-page .wm-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 26px;
  letter-spacing: 0.3em;
  color: rgba(110, 231, 183, 0.18);
  transform: rotate(-30deg);
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity .25s;
}
.pdf-page .wm-text.hidden { opacity: 0; }

.pdf-events {
  padding: 20px;
  background: rgba(0,0,0,0.22);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.events-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
  display: flex;
  align-items: center;
  gap: 8px;
}
.events-title::before { content: ""; width: 6px; height: 6px; background: var(--mint); border-radius: 50%; box-shadow: 0 0 10px var(--mint); }
.events-log {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  max-height: 380px;
  padding-right: 4px;
}
.event {
  display: flex;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  animation: eventIn .3s cubic-bezier(.2,.9,.3,1.2);
}
.event-time { color: var(--text-mute); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.event-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); margin-top: 5px; flex-shrink: 0; }
.event-dot.ok { background: var(--mint); }
.event-text { color: var(--text); flex: 1; }
.event-text .em { color: var(--red); }
.event-text .ok { color: var(--mint); }
@keyframes eventIn {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}
.events-empty { color: var(--text-mute); font-family: var(--mono); font-size: 11px; padding: 10px 0; }
.demo-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.demo-actions .btn-mini {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border-radius: 6px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--text-dim);
  cursor: pointer;
}
.demo-actions .btn-mini:hover { color: var(--text); background: var(--surface-2); }

.demo-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.02);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-mute);
}
.tool-btn {
  width: 28px; height: 28px;
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--text-dim);
  position: relative;
  cursor: not-allowed;
}
.tool-btn.blocked { opacity: 0.45; }
.tool-btn.blocked::after {
  content: "";
  position: absolute;
  left: 4px; right: 4px; top: 50%;
  height: 2px;
  background: var(--red);
  transform: rotate(-45deg);
  border-radius: 1px;
}
.tool-spacer { flex: 1; }

/* Custom context menu (blocked) */
.fake-menu {
  position: fixed;
  z-index: 500;
  background: #0F172A;
  border: 1px solid var(--red);
  border-radius: 8px;
  padding: 6px;
  min-width: 200px;
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.7), 0 0 0 1px rgba(248, 113, 113, 0.25);
  font-family: var(--sans);
  font-size: 13px;
  opacity: 0;
  transform: translateY(-4px) scale(0.98);
  pointer-events: none;
  transition: opacity .15s, transform .15s;
}
.fake-menu.show { opacity: 1; transform: translateY(0) scale(1); }
.fake-menu-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px 8px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.fake-menu-item {
  padding: 7px 10px;
  color: var(--text-mute);
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  text-decoration: line-through;
  text-decoration-color: rgba(248, 113, 113, 0.6);
  text-decoration-thickness: 1px;
}

/* Use cases */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 960px) { .cases { grid-template-columns: 1fr; } }
.case {
  padding: 28px;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform .3s;
}
.case:hover { transform: translateY(-4px); }
.case-art {
  height: 200px;
  margin: -28px -28px 24px;
  position: relative;
  overflow: visible;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(110, 231, 183, 0.06), transparent 60%);
}
.case h3 { margin-bottom: 8px; }
.case p { color: var(--text-dim); font-size: 14px; margin-bottom: 16px; flex: 1; }
.case-tags { display: flex; gap: 6px; flex-wrap: wrap; }

/* Stacked ebook art (use case 1) */
.book-stack {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  perspective: 800px;
}
.book {
  position: absolute;
  width: 90px; height: 120px;
  border-radius: 3px 6px 6px 3px;
  background: linear-gradient(135deg, var(--mint), #34D399);
  box-shadow: 0 12px 30px -10px rgba(0,0,0,0.5), inset 4px 0 0 rgba(0,0,0,0.15);
  transition: transform .6s cubic-bezier(.2,.8,.3,1);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.book .bline { height: 2px; background: rgba(11, 18, 32, 0.25); border-radius: 1px; }
.book .bline.s { width: 60%; }
.book.b1 { transform: rotate(-10deg) translate(-36px, 12px); background: linear-gradient(135deg, var(--violet), #7C3AED); }
.book.b2 { transform: rotate(-3deg) translate(-12px, 2px); background: linear-gradient(135deg, #FCA5A5, #F87171); }
.book.b3 { transform: rotate(4deg) translate(18px, -4px); background: linear-gradient(135deg, var(--mint), #34D399); }
.case:hover .book.b1 { transform: rotate(-16deg) translate(-52px, 8px); }
.case:hover .book.b3 { transform: rotate(10deg) translate(34px, -12px); }

/* Course art (use case 2) */
.course-art-inner {
  position: absolute;
  inset: 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}
.lesson-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: transform .4s;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
}
.lesson-row .l-num {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  display: grid; place-items: center;
  color: var(--text);
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
}
.lesson-row .l-name { flex: 1; font-family: var(--sans); color: var(--text); font-size: 12px; }
.lesson-row.done .l-num { background: var(--mint); color: #0B1220; border-color: var(--mint); }
.lesson-row.active { border-color: rgba(110, 231, 183, 0.5); background: rgba(110, 231, 183, 0.05); }
.lesson-row.lock { opacity: 0.55; }
.case:hover .lesson-row.active { transform: translateX(6px); }

/* Multimedia art (use case 3) */
.media-orbit {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.media-core {
  width: 58px; height: 58px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--mint), #34D399);
  display: grid; place-items: center;
  color: #0B1220;
  box-shadow: 0 0 0 1px var(--border-2), 0 20px 40px -10px var(--mint-glow);
  z-index: 2;
}
.media-ring {
  position: absolute;
  inset: 26px;
  border: 1px dashed var(--border-2);
  border-radius: 50%;
  animation: spin 22s linear infinite;
}
.media-ring.outer { inset: 8px; animation-duration: 32s; animation-direction: reverse; }
.media-icon {
  position: absolute;
  width: 30px; height: 30px;
  border-radius: 7px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  display: grid; place-items: center;
  color: var(--text);
  font-family: var(--mono);
  font-size: 7px;
  font-weight: 700;
  z-index: 3;
}
/* 8 icons on outer ring, evenly spaced at 45° intervals */
.mi-pdf  { top: 4px;   left: 50%;  transform: translateX(-50%); color: #F87171; }
.mi-mp4  { top: 18%;  right: 4px;  transform: none; color: var(--violet); }
.mi-mp3  { bottom: 4px; left: 50%; transform: translateX(-50%); color: var(--amber); }
.mi-epub { top: 18%;  left: 4px;   transform: none; color: var(--mint); }
.mi-docx { bottom: 18%; right: 4px; transform: none; color: #60A5FA; }
.mi-pptx { bottom: 18%; left: 4px;  transform: none; color: #FB923C; }
.mi-wav  { top: 50%;  right: 4px;  transform: translateY(-50%); color: #C084FC; }
.mi-webm { top: 50%;  left: 4px;   transform: translateY(-50%); color: #34D399; }

/* Parallax stack (decorative) */
.parallax-stack {
  position: absolute;
  right: 5%;
  top: 15%;
  width: 220px;
  height: 280px;
  pointer-events: none;
  z-index: 0;
  display: none;
}
@media (min-width: 1200px) { .parallax-stack { display: block; } }
.parallax-stack .pcard {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

/* Pricing */
.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}
@media (max-width: 960px) { .pricing { grid-template-columns: 1fr; } }
.tier {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.tier.featured {
  background: linear-gradient(180deg, rgba(110, 231, 183, 0.08), var(--surface));
  border: 1px solid rgba(110, 231, 183, 0.3);
  transform: translateY(-10px);
  overflow: visible;
}
.tier-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  padding: 4px 12px;
  background: var(--mint);
  color: #0B1220;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  font-weight: 700;
  text-transform: uppercase;
}
.tier-name {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.tier-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 4px;
}
.tier-price .num { font-size: 48px; font-weight: 600; letter-spacing: -0.03em; }
.tier-price .per { color: var(--text-mute); font-family: var(--mono); font-size: 12px; }
.tier-sub { color: var(--text-dim); font-size: 14px; margin-bottom: 22px; }
.tier ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  flex: 1;
}
.tier li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--text-dim);
  align-items: flex-start;
}
.tier li .ck {
  flex-shrink: 0;
  width: 18px; height: 18px;
  border-radius: 4px;
  background: rgba(110, 231, 183, 0.12);
  color: var(--mint);
  display: grid; place-items: center;
  margin-top: 1px;
}
.tier li .ck.off {
  background: rgba(255,255,255,0.04);
  color: var(--text-mute);
}
.tier li.off { color: var(--text-mute); text-decoration: line-through; text-decoration-color: rgba(255,255,255,0.2); }
.tier li strong { color: var(--text); font-weight: 500; }
.tier .btn { width: 100%; }

/* File types grid */
.filetypes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
@media (max-width: 960px) { .filetypes { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .filetypes { grid-template-columns: repeat(2, 1fr); } }
.ftype-card {
  padding: 18px 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
  transition: transform .25s, border-color .25s, background .25s;
}
.ftype-card:hover { transform: translateY(-3px); border-color: var(--border-2); background: var(--surface-2); }
.ftype-card .ftype-badge {
  width: 38px; height: 46px;
  border-radius: 6px;
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #0B1220;
  flex-shrink: 0;
  box-shadow: 0 8px 20px -8px rgba(0,0,0,0.5);
  position: relative;
}
.ftype-card .ftype-badge::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 10px; height: 10px;
  background: rgba(0,0,0,0.2);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}
.ftype-name { font-size: 14px; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.ftype-ext { font-family: var(--mono); font-size: 11px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; }
.ftype-tier {
  position: absolute;
  top: 12px; right: 12px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(110, 231, 183, 0.1);
  color: var(--mint);
  border: 1px solid rgba(110, 231, 183, 0.22);
}
.ftype-tier.free { background: var(--surface-2); color: var(--text-mute); border-color: var(--border); }

/* Comparison table */
.compare-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  position: relative;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
}
.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.compare-table thead th {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: rgba(255,255,255,0.02);
  font-weight: 500;
}
.compare-table thead th.us {
  color: var(--mint);
  background: rgba(110, 231, 183, 0.06);
  border-bottom: 1px solid rgba(110, 231, 183, 0.25);
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover td { background: rgba(255,255,255,0.02); }
.compare-table td.us { background: rgba(110, 231, 183, 0.04); color: var(--text); }
.compare-table td.feat { color: var(--text); font-weight: 500; }
.compare-table td.check {
  text-align: center;
  font-family: var(--mono);
  font-size: 13px;
}
.compare-table td.check .yes {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px;
  border-radius: 6px;
  background: rgba(110, 231, 183, 0.14);
  color: var(--mint);
}
.compare-table td.check .no {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-mute);
}
.compare-table td.note { color: var(--text-dim); font-size: 13px; }
.compare-table tr.total td {
  background: rgba(110, 231, 183, 0.05);
  font-weight: 600;
  border-top: 1px solid rgba(110, 231, 183, 0.2);
}
.compare-table tr.total td.note { color: var(--mint); font-family: var(--mono); font-size: 13px; }
@media (max-width: 760px) {
  .compare-table thead { display: none; }
  .compare-table, .compare-table tbody, .compare-table tr, .compare-table td { display: block; width: 100%; }
  .compare-table tr { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .compare-table td { padding: 6px 20px; border: none; }
  .compare-table td.feat { font-size: 15px; padding-top: 14px; }
  .compare-table td.check::before { content: attr(data-label) " — "; font-family: var(--mono); font-size: 10px; color: var(--text-mute); letter-spacing: 0.1em; text-transform: uppercase; }
  .compare-table td.check { text-align: left; }
}

/* FAQ */
.faq {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  max-width: 880px;
  margin: 0 auto;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .2s, background .2s;
}
.faq-item[open] {
  border-color: var(--border-2);
  background: var(--surface-2);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  width: 12px; height: 12px;
  border-right: 1.5px solid var(--text-dim);
  border-bottom: 1.5px solid var(--text-dim);
  transform: rotate(45deg);
  transition: transform .25s;
  flex-shrink: 0;
  margin-left: auto;
}
.faq-item[open] summary::after { transform: rotate(-135deg); }
.faq-item summary .q-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint);
  flex-shrink: 0;
  padding-top: 2px;
}
.faq-item .answer {
  padding: 0 22px 22px 66px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.65;
}
.faq-item .answer p + p { margin-top: 10px; }
.faq-item .answer code {
  font-family: var(--mono);
  font-size: 12px;
  padding: 2px 6px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--mint);
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s cubic-bezier(.2,.8,.2,1), transform .7s cubic-bezier(.2,.8,.2,1);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.ftype-card.reveal { transition-delay: calc(var(--i, 0) * 40ms); }

/* Parallax doc stack (new hero-adjacent decorative) */
.scene-stack {
  position: absolute;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  margin-top: 40px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-note { font-family: var(--mono); font-size: 11px; color: var(--text-mute); letter-spacing: 0.05em; text-decoration: none; }
.footer-note:hover { color: var(--text-dim); }
.footer-links { display: flex; gap: 20px; }

/* Tiny nav pill */
.nav-pill {
  display: inline-flex;
  padding: 3px 9px;
  background: rgba(110, 231, 183, 0.12);
  color: var(--mint);
  border: 1px solid rgba(110, 231, 183, 0.28);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-left: 8px;
}