:root {
  --font-display: "Playfair Display", Georgia, serif;
  --font-sans: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
  --radius: 10px;
  --radius-xl: 16px;
  --max: 1180px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

[data-theme="light"] {
  --bg:           #fafafa;
  --bg-alt:       #f4f4f5;
  --surface:      #ffffff;
  --surface-2:    #f4f4f5;
  --border:       #18181b;
  --border-soft:  #e4e4e7;
  --border-faint: #f4f4f5;
  --text:         #09090b;
  --text-2:       #52525b;
  --muted:        #a1a1aa;
  --accent:       #6366f1;
  --accent-2:     #4f46e5;
  --accent-soft:  rgba(99, 102, 241, 0.08);
  --accent-ink:   #ffffff;
  --good:         #10b981;
  --warn:         #f59e0b;
  --warn-bg:      #fffbeb;
  --warn-border:  #fde68a;
  --warn-text:    #92400e;
  --grid:         rgba(0, 0, 0, 0.04);
  --app-border:   #e4e4e7;
  --app-chart-grid: rgba(0, 0, 0, 0.06);
  --shadow-sm:    0 1px 0 rgba(0, 0, 0, 0.04);
  --shadow:       0 8px 30px -10px rgba(0, 0, 0, 0.1);
  --shadow-lg:    0 30px 80px -20px rgba(0, 0, 0, 0.18);
}

[data-theme="dark"] {
  --bg:           #09090b;
  --bg-alt:       #0c0c0e;
  --surface:      #18181b;
  --surface-2:    #27272a;
  --border:       #fafafa;
  --border-soft:  #27272a;
  --border-faint: #18181b;
  --text:         #fafafa;
  --text-2:       #a1a1aa;
  --muted:        #71717a;
  --accent:       #818cf8;
  --accent-2:     #a5b4fc;
  --accent-soft:  rgba(129, 140, 248, 0.12);
  --accent-ink:   #09090b;
  --good:         #10b981;
  --warn:         #fbbf24;
  --warn-bg:      rgba(245, 158, 11, 0.08);
  --warn-border:  rgba(245, 158, 11, 0.2);
  --warn-text:    #fbbf24;
  --grid:         rgba(255, 255, 255, 0.035);
  --app-border:   #27272a;
  --app-chart-grid: rgba(255, 255, 255, 0.06);
  --shadow-sm:    0 1px 0 rgba(255, 255, 255, 0.04);
  --shadow:       0 8px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-lg:    0 30px 80px -20px rgba(0, 0, 0, 0.7);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  transition: background .25s var(--ease), color .25s var(--ease);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--accent); color: var(--accent-ink); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 28px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border-faint);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 32px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { border-radius: 6px; }
.logo-text { font-weight: 700; font-size: 16px; letter-spacing: -0.02em; }
.logo-text span { color: var(--warn); }
.nav-links { display: flex; gap: 0; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text-2);
  padding: 8px 14px; border-radius: 6px; transition: color .15s var(--ease);
  letter-spacing: -0.01em;
}
.nav-links a:hover { color: var(--warn); }
.nav-links a:last-child { color: var(--warn); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 6px; }
.theme-toggle {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 6px; color: var(--muted);
  transition: all .2s var(--ease);
  background: none; border: 0; cursor: pointer;
}
.theme-toggle svg { width: 18px; height: 18px; }
.icon-sun { color: var(--warn); }
.icon-moon { color: #a78bfa; }
.theme-toggle:hover { background: var(--surface-2); }
.theme-toggle:hover .icon-sun { color: #fbbf24; }
.theme-toggle:hover .icon-moon { color: #c4b5fd; }

.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; width: 32px; height: 32px; align-items: center; justify-content: center; border: 0; background: none; cursor: pointer; border-radius: 6px; padding: 6px; }
.mobile-menu-btn span { display: block; width: 18px; height: 2px; background: var(--text-2); border-radius: 1px; transition: all .2s var(--ease); }
.mobile-menu-btn.open span:nth-child(1) { transform: rotate(45deg) translate(3px, 3px); }
.mobile-menu-btn.open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.open span:nth-child(3) { transform: rotate(-45deg) translate(3px, -3px); }
.mobile-nav { display: none; position: fixed; top: 60px; left: 0; right: 0; bottom: 0; background: var(--bg); z-index: 49; padding: 24px 28px; flex-direction: column; gap: 4px; overflow-y: auto; }
.mobile-nav.open { display: flex; }
.mobile-nav a { font-size: 16px; font-weight: 500; color: var(--text-2); padding: 14px 16px; border-radius: 8px; letter-spacing: -0.01em; text-decoration: none; }
.mobile-nav a:hover { color: var(--warn); background: var(--surface-2); }
.mobile-nav a:last-child { color: var(--warn); font-weight: 600; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 8px;
  font-size: 14.5px; font-weight: 600;
  transition: all .15s var(--ease); white-space: nowrap;
  border: none;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--text); color: var(--bg);
}
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--text);
}
.btn-ghost:hover { background: var(--text); color: var(--bg); }

section { padding: 100px 0; position: relative; }
.section-head { max-width: 720px; margin: 0 auto 60px; text-align: center; }
.kicker {
  display: inline-block; font-family: var(--font-mono);
  font-size: 12px; font-weight: 500; color: var(--warn-text);
  text-transform: uppercase; letter-spacing: 0.12em;
  padding: 5px 12px; border-radius: 999px;
  background: var(--warn-bg); margin-bottom: 20px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-optical-sizing: auto;
  font-size: clamp(32px, 4.4vw, 48px);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}
.section-head p { color: var(--text-2); font-size: 16.5px; line-height: 1.6; }

.hero { padding: 80px 0 100px; text-align: center; overflow: hidden; position: relative; }
.hero::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  top: -120px; left: -120px;
  background: rgba(99,102,241,.25);
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none; z-index: 0;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, transparent 40%, var(--bg) 88%);
  pointer-events: none; z-index: 1;
}
@media (max-width: 980px) {
  .hero::before { width: 320px; height: 320px; top: -80px; left: -60px; filter: blur(80px); }
}
@media (max-width: 580px) {
  .hero::before { width: 250px; height: 250px; top: -60px; left: -60px; filter: blur(70px); }
}
.hero .container { position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; color: var(--warn-text);
  text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 24px; position: relative;
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--warn);
  box-shadow: 0 0 0 4px rgba(245,158,11,.25);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.8);}}
.hero-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-optical-sizing: auto;
  font-size: clamp(44px, 8vw, 96px);
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 28px;
  position: relative;
}
.hero-line-amber { color: #3b82f6; text-shadow: 0 0 60px rgba(59,130,246,.3), 0 2px 4px rgba(59,130,246,.15); }
.grad { color: var(--warn); }
.hero-sub {
  font-size: 18px; color: var(--text-2); max-width: 680px; margin: 0 auto 48px;
  line-height: 1.65; position: relative;
}
.hero-sub-lead {
  display: block;
  font-size: 20px; font-weight: 400; font-style: italic;
  color: var(--text); letter-spacing: -0.01em;
  line-height: 1.5; margin-bottom: 20px;
}
.hero-sub-body {
  display: block; font-weight: 400;
}
.hero-sub-close {
  display: block;
  margin-top: 24px; padding-top: 18px;
  font-style: italic; color: var(--muted);
  border-top: 1px solid var(--border-faint);
  line-height: 1.7;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; margin-bottom: 64px; position: relative; flex-wrap: wrap; }

.hero-shot { position: relative; max-width: 1040px; margin: 0 auto; }
.hero-shot::before {
  content: ""; position: absolute; inset: -30px -30px 0 -30px;
  background: var(--warn); filter: blur(80px); opacity: 0.10; z-index: -1;
}
.hero-play-btn {
  position: absolute;
  bottom: 24px;
  right: 24px;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 0;
  border-radius: 999px;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: background .2s var(--ease), transform .2s var(--ease);
  box-shadow: 0 4px 16px rgba(0,0,0,.35);
}
.hero-play-btn:hover {
  background: rgba(0,0,0,.85);
  transform: translateY(-1px);
}
.hero-play-btn .play-circle {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}
.hero-play-btn .play-circle circle {
  fill: rgba(255,255,255,.2);
  stroke: rgba(255,255,255,.9);
}
.hero-play-btn .play-circle path {
  fill: rgba(255,255,255,.95);
}
.hero-play-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,.95);
  letter-spacing: .01em;
  pointer-events: none;
}

/* ── Video Modal ── */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
  padding: 24px;
}
.video-modal.active {
  opacity: 1;
  pointer-events: auto;
}
.video-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.8);
  backdrop-filter: blur(6px);
}
.video-modal-content {
  position: relative;
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
  transform: translateY(12px) scale(.97);
  transition: transform .35s var(--ease);
}
.video-modal.active .video-modal-content {
  transform: translateY(0) scale(1);
}
.video-modal-close {
  position: absolute;
  top: -44px;
  right: 0;
  z-index: 10;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.85);
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: background .15s var(--ease);
}
.video-modal-close:hover {
  background: rgba(255,255,255,.22);
}
.video-modal-close svg {
  width: 20px;
  height: 20px;
}
.video-modal-embed {
  width: 100%;
  height: 100%;
}
.video-modal-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}
.app-window {
  background: var(--bg);
  border: 1px solid var(--app-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  text-align: left;
  font-size: 13px;
}
.titlebar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--app-border);
  background: var(--bg);
}
.t-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--app-border); }
.t-title { font-size: 11.5px; color: var(--muted); flex: 1; text-align: center; font-family: var(--font-mono); }
.app-body { display: flex; min-height: 540px; }

.app-side {
  width: 240px; flex-shrink: 0;
  background: var(--bg);
  border-right: 1px solid var(--app-border);
  display: flex; flex-direction: column;
  padding: 0;
}
.app-brand {
  height: 44px; display: flex; align-items: center; gap: 8px;
  padding: 0 16px; border-bottom: 1px solid var(--app-border);
  font-size: 13.5px; font-weight: 600;
  color: var(--text); letter-spacing: -0.01em;
}
.app-nav { flex: 1; padding: 10px; display: flex; flex-direction: column; gap: 2px; }
.app-nav-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 500; color: var(--text-2);
  padding: 7px 10px; border-radius: 6px;
  transition: background .12s var(--ease), color .12s var(--ease);
  cursor: default;
}
.app-nav-item:hover { background: var(--surface); color: var(--text); }
.app-nav-item.active { background: var(--surface); color: var(--text); }
.app-nav-item svg { flex-shrink: 0; }
.app-side-foot {
  padding: 10px 16px; border-top: 1px solid var(--app-border);
  font-size: 11px; color: var(--muted); font-weight: 500;
}

.app-main { flex: 1; padding: 22px 26px; display: flex; flex-direction: column; gap: 16px; background: var(--bg); }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; }
.page-title { font-size: 18px; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.page-desc { font-size: 12px; color: var(--text-2); margin-top: 3px; }

.app-stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.app-stat {
  background: var(--bg);
  border: 1px solid var(--app-border);
  border-radius: 8px; padding: 14px 16px;
}
.app-stat-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.app-stat-label { font-size: 11.5px; font-weight: 500; color: var(--text-2); }
.app-stat-top svg { color: var(--muted); }
.app-stat-value { font-family: var(--font-display); font-weight: 600; font-size: 22px; color: var(--text); letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 4px; }
.app-stat-sub { font-size: 11px; color: var(--muted); }

.app-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.app-chart {
  background: var(--bg);
  border: 1px solid var(--app-border);
  border-radius: 8px; padding: 16px;
}
.app-chart-wide { grid-column: 1 / -1; }
.app-chart-head { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 14px; }

.donut-wrap { display: flex; align-items: center; gap: 14px; }
.donut { position: relative; flex: 1; min-width: 0; display: flex; align-items: center; justify-content: center; }
.donut svg { display: block; }
.donut-center {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  pointer-events: none;
}
.donut-num { font-family: var(--font-display); font-weight: 600; font-size: 20px; color: var(--text); letter-spacing: -0.02em; }
.donut-cap { font-size: 9.5px; font-weight: 500; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.donut-legend { width: 150px; flex-shrink: 0; list-style: none; display: flex; flex-direction: column; gap: 7px; }
.donut-legend li { display: flex; align-items: center; gap: 8px; font-size: 11.5px; }
.lg-sw { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.lg-lbl { flex: 1; color: var(--text); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lg-val { color: var(--muted); font-family: var(--font-mono); font-size: 11px; }

.area-chart { height: 130px; width: 100%; }
.area-chart svg { display: block; }
.axis { display: flex; justify-content: space-between; margin-top: 8px; font-size: 10.5px; color: var(--muted); font-family: var(--font-mono); font-weight: 500; }

.bar-chart { padding: 4px 0; }
.bars { display: flex; align-items: flex-end; gap: 8px; height: 130px; padding: 0 4px; }
.bar-col { flex: 1; display: flex; align-items: flex-end; gap: 2px; justify-content: center; }
.bar-b { flex: 1; background: #6366f1; border-radius: 3px 3px 0 0; min-height: 4px; }
.bar-c { flex: 1; background: #10b981; border-radius: 3px 3px 0 0; min-height: 4px; opacity: 0.85; }
.chart-legend { display: flex; gap: 18px; margin-top: 10px; padding: 0 4px; font-size: 11.5px; color: var(--text-2); }
.chart-legend span { display: flex; align-items: center; gap: 6px; }
.cl-sw { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

.trust { padding: 40px 0; border-top: 1px solid var(--border-faint); border-bottom: 1px solid var(--border-faint); background: var(--bg-alt); }
.trust-label {
  text-align: center; font-size: 13px; color: var(--warn-text); font-weight: 500;
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 24px;
}
.trust-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.trust-pill {
  font-size: 14px; font-weight: 500; color: var(--text-2);
  padding: 10px 20px; border-radius: 8px;
  border: 1px solid var(--border-faint);
  background: var(--surface);
  transition: all .15s var(--ease);
}
.trust-pill:hover { color: var(--warn-text); border-color: var(--warn); background: var(--warn-bg); }

.features { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.feat {
  display: grid; grid-template-columns: 1fr 1fr; gap: 72px;
  align-items: start; padding: 56px 0;
}
.feat + .feat { border-top: 1px solid var(--border-faint); }
.feat.reverse .feat-copy { order: 2; }
.feat.reverse .feat-visual { order: 1; }
.feat-copy {
  background: var(--surface); border: 1px solid var(--border-faint);
  border-radius: var(--radius-xl); padding: 32px;
}
.feat-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em;
  padding: 5px 12px; border-radius: 6px;
  background: var(--accent-soft); border: 1px solid rgba(99,102,241,.15);
  margin-bottom: 20px;
}
.feat-copy h3 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 18px; }
.feat-copy h3 .grad { color: var(--accent); }
.feat-copy > p { color: var(--text-2); font-size: 16px; line-height: 1.6; margin-bottom: 22px; }
.bullets { list-style: none; }
.bullets li {
  position: relative; padding-left: 28px;
  font-size: 14.5px; color: var(--text-2); margin-bottom: 12px;
  line-height: 1.5; transition: color .15s var(--ease);
}
.bullets li:hover { color: var(--text); }
.bullets li::before {
  content: "";
  position: absolute; left: 0; top: 5px;
  width: 14px; height: 14px;
  background: var(--accent); border-radius: 3px;
  opacity: 0.7;
}

.mock {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl); padding: 20px;
  box-shadow: var(--shadow);
}

.search-mock { display: flex; flex-direction: column; gap: 10px; }
.search-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 8px;
  background: var(--surface-2); border: 1px solid var(--border-soft);
}
.search-bar svg { flex-shrink: 0; color: var(--muted); }
.s-text { flex: 1; font-size: 13px; color: var(--text); }
.s-mode {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  color: var(--accent); white-space: nowrap;
}
.search-meta { font-size: 11px; color: var(--muted); font-family: var(--font-mono); padding: 0 4px; }

.sr-card {
  padding: 14px; border: 1px solid var(--border-faint);
  border-radius: 10px; background: var(--surface-2);
  display: flex; flex-direction: column; gap: 10px;
}
.sr-content {
  font-size: 13px; font-weight: 500; color: var(--text);
  line-height: 1.55; margin: 0;
}
.sr-badges { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.sr-badge {
  display: inline-flex; align-items: center;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  padding: 2px 7px; border-radius: 5px; border: 1px solid;
}
.sr-badge-green  { background: rgba(16,185,129,.08);  color: #047857; border-color: rgba(16,185,129,.20); }
.sr-badge-orange { background: rgba(245,158,11,.08);  color: #b45309; border-color: rgba(245,158,11,.20); }
.sr-badge-blue   { background: rgba(59,130,246,.08);  color: #1d4ed8; border-color: rgba(59,130,246,.20); }
.sr-badge-gray   { background: rgba(113,113,122,.08); color: var(--muted); border-color: rgba(113,113,122,.15); }
[data-theme="dark"] .sr-badge-green  { color: #6ee7b7; }
[data-theme="dark"] .sr-badge-orange { color: #fcd34d; }
[data-theme="dark"] .sr-badge-blue   { color: #93c5fd; }

.sr-bars { display: flex; flex-direction: column; gap: 7px; }
.sr-bar {
  display: flex; align-items: center; gap: 8px;
}
.sr-bar-label {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 600;
  color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em;
  width: 32px; text-align: right; flex-shrink: 0;
}
.sr-bar-track {
  flex: 1; height: 4px; border-radius: 2px;
  background: var(--surface); overflow: hidden;
}
.sr-bar-fill { height: 100%; border-radius: 2px; }
.sr-fill-high  { background: var(--good); }
.sr-fill-mid   { background: var(--warn); }
.sr-fill-low   { background: var(--muted); }
.sr-fill-score { background: var(--accent); }
.sr-bar-val {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  color: var(--text-2); width: 38px; text-align: right; flex-shrink: 0;
}

.priv-mock { display: flex; flex-direction: column; gap: 4px; }
.priv-line {
  display: grid; grid-template-columns: 16px 1fr auto; gap: 12px; align-items: center;
  padding: 12px 14px; border-radius: 8px;
}
.priv-line + .priv-line { border-top: 1px solid var(--border-faint); }
.priv-dot { width: 8px; height: 8px; border-radius: 50%; }
.priv-dot.ok { background: var(--good); }
.priv-label { font-size: 13.5px; font-weight: 500; }
.priv-val { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }

.interfaces { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.interfaces .section-head { margin-bottom: 28px; }
.if-illustration { max-width: 600px; margin: 0 auto 20px; }
.if-diagram { width: 100%; height: auto; display: block; }
.if-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 20px; }
.if-card { background: var(--surface); border: 1px solid var(--border-faint); border-radius: var(--radius-xl); padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.if-card-tag {
  display: inline-block; font-family: var(--font-mono);
  font-size: 10.5px; font-weight: 600; padding: 4px 10px; border-radius: 5px;
  letter-spacing: 0.04em; text-transform: uppercase; align-self: flex-start;
}
.if-tag-mcp { background: rgba(99,102,241,.10); color: #6366f1; border: 1px solid rgba(99,102,241,.22); }
.if-tag-cli { background: rgba(16,185,129,.10); color: #10b981; border: 1px solid rgba(16,185,129,.22); }
.if-tag-desk{ background: rgba(245,158,11,.10); color: #f59e0b; border: 1px solid rgba(245,158,11,.22); }
[data-theme="dark"] .if-tag-mcp { color: #a5b4fc; }
[data-theme="dark"] .if-tag-cli { color: #6ee7b7; }
[data-theme="dark"] .if-tag-desk{ color: #fcd34d; }
.if-card h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }
.if-card p { font-size: 14px; color: var(--text-2); line-height: 1.55; }
.if-card-list { list-style: none; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.if-card-list li { font-size: 13.5px; color: var(--text-2); padding: 0 0 0 16px; position: relative; line-height: 1.5; }
.if-card-list li::before { content: ""; position: absolute; left: 0; top: 7px; width: 5px; height: 5px; border-radius: 50%; background: var(--muted); }

.if-tools-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; text-align: center; }
.if-tools { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.if-tools .tool-group:last-child { grid-column: 1 / -1; }

.inside { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.inside .section-head { margin-bottom: 48px; }
.inside-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border-faint); border: 1px solid var(--border-soft); border-radius: var(--radius-xl); overflow: hidden; }
.ic { background: var(--surface); padding: 32px 28px; transition: background .2s var(--ease), transform .2s var(--ease); position: relative; }
.ic:hover { background: var(--surface-2); transform: translateY(-2px); z-index: 1; }
.ic::before {
  content: '';
  position: absolute; left: 0; top: 20%; bottom: 20%;
  width: 2px; border-radius: 1px;
  background: var(--accent); opacity: 0;
  transition: opacity .2s var(--ease);
}
.ic:hover::before { opacity: 1; }
.ic-num { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-bottom: 12px; font-weight: 600; letter-spacing: 0.04em; }
.ic h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
.ic p { font-size: 14px; color: var(--text-2); line-height: 1.55; }

.faq { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: 12px; padding: 0; overflow: hidden;
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.faq details:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.faq details[open] { border-color: var(--accent); box-shadow: var(--shadow); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-size: 15.5px; font-weight: 600; display: flex; justify-content: space-between; align-items: center;
  transition: color .15s var(--ease);
}
.faq details:hover summary { color: var(--accent); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-family: var(--font-mono); font-size: 18px; color: var(--muted);
  transition: transform .2s var(--ease), color .2s var(--ease);
}
.faq details:hover summary::after { color: var(--accent); }
.faq details[open] summary::after { transform: rotate(45deg); color: var(--accent); }
.faq details p { padding: 0 22px 20px; color: var(--text-2); font-size: 14.5px; line-height: 1.6; }
.faq details p code { font-family: var(--font-mono); font-size: 12px; background: var(--surface-2); padding: 1px 6px; border-radius: 3px; color: var(--accent); }
.faq details pre { margin: 0 22px 20px; background: var(--bg); border: 1px solid var(--border-faint); border-radius: 8px; padding: 14px 16px; overflow-x: auto; }
.faq details pre code { font-family: var(--font-mono); font-size: 12px; line-height: 1.7; color: var(--text-2); background: none; padding: 0; border-radius: 0; white-space: pre; }

.download { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 960px; margin: 0 auto; }
.dl-card {
  display: flex; flex-direction: column;
  padding: 28px 28px 0; border-radius: var(--radius-xl);
  background: var(--surface); border: 1px solid var(--border-faint);
  overflow: hidden; transition: all .25s var(--ease);
}
.dl-card:hover { border-color: var(--warn); transform: translateY(-4px); box-shadow: 0 12px 40px -12px rgba(0,0,0,.15); }
.dl-card-top { display: flex; align-items: center; gap: 16px; }
.dl-platform {
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  border-radius: 12px; flex-shrink: 0;
}
.dl-platform svg { width: 26px; height: 26px; }
.dl-card-win .dl-platform { background: rgba(59,130,246,.12); color: #3b82f6; }
.dl-card-mac .dl-platform { background: rgba(161,161,170,.12); color: #a1a1aa; }
.dl-card-lin .dl-platform { background: rgba(16,185,129,.12); color: var(--good); }
[data-theme="dark"] .dl-card-win .dl-platform { color: #93c5fd; }
[data-theme="dark"] .dl-card-mac .dl-platform { color: #d4d4d8; }
.dl-body { flex: 1; min-width: 0; }
.dl-name { font-family: var(--font-display); font-weight: 600; font-size: 19px; color: var(--text); letter-spacing: -0.02em; margin-bottom: 2px; }
.dl-meta { font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.dl-tag { font-family: var(--font-mono); font-size: 10.5px; color: var(--warn-text); margin-top: 12px; display: inline-block; padding: 3px 9px; border-radius: 5px; background: var(--warn-bg); letter-spacing: .04em; }
.dl-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin: auto -28px 0; padding: 14px 0; border-radius: 0;
  font-size: 14.5px; font-weight: 600; letter-spacing: -0.01em;
  background: var(--text); color: var(--bg);
  transition: all .2s var(--ease);
}
.dl-btn svg { width: 16px; height: 16px; transition: transform .2s var(--ease); }
.dl-card:hover .dl-btn { filter: brightness(1.05); }
.dl-card:hover .dl-btn svg { transform: translateY(2px); }
.dl-foot { display: flex; justify-content: center; gap: 10px; margin-top: 44px; }
.dl-foot-badge { font-family: var(--font-mono); font-size: 11px; color: var(--muted); padding: 6px 14px; border: 1px solid var(--border-faint); border-radius: 8px; background: var(--surface); letter-spacing: .04em; }
.dl-foot-link { text-align: center; margin-top: 18px; font-size: 14px; color: var(--muted); }
.dl-foot-link a { color: var(--warn-text); text-decoration: underline; text-underline-offset: 3px; font-weight: 500; }
.dl-foot-link a:hover { color: var(--warn); }

.site-footer { border-top: 1px solid var(--border-faint); padding: 48px 0 36px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.foot-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; }
.foot-brand img { border-radius: 5px; }
.foot-links { display: flex; gap: 24px; }
.foot-links a { font-size: 13.5px; color: var(--muted); transition: color .15s var(--ease); }
.foot-links a:hover { color: var(--text); }
.foot-tag { text-align: center; font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }

.amnesia { border-top: 1px solid var(--border-faint); }
.amnesia-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: center; }
.am-copy h2 { font-size: clamp(28px, 3.8vw, 42px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 20px; }
.am-copy p { color: var(--text-2); font-size: 16.5px; line-height: 1.65; margin-bottom: 16px; max-width: 540px; }
.am-copy p:last-child { margin-bottom: 0; }
.am-stack { display: flex; flex-direction: column; gap: 12px; }
.am-card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-sm); }
.am-card.am-lost { border-style: dashed; }
.am-head { display: flex; align-items: center; gap: 10px; padding: 11px 16px; background: var(--surface-2); border-bottom: 1px solid var(--border-faint); font-family: var(--font-mono); font-size: 11.5px; }
.am-dot { width: 7px; height: 7px; border-radius: 50%; }
.am-lost .am-dot { background: #fb7185; }
.am-kept .am-dot { background: var(--good); }
.am-name { color: var(--text-2); flex: 1; }
.am-tag { font-size: 9.5px; padding: 2px 7px; border-radius: 4px; letter-spacing: .04em; text-transform: uppercase; font-weight: 500; }
.am-tag-lost { background: rgba(251,113,133,.12); color: #fb7185; border: 1px solid rgba(251,113,133,.22); }
.am-tag-kept { background: rgba(16,185,129,.12); color: var(--good); border: 1px solid rgba(16,185,129,.22); }
.am-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; }
.am-line { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; line-height: 1.5; }
.am-role { font-family: var(--font-mono); font-size: 10.5px; color: var(--muted); min-width: 30px; padding-top: 2px; }
.am-msg { color: var(--text-2); }
.am-msg.am-lost-text { color: #fb7185; font-style: italic; }
.am-msg.am-kept-text { color: var(--text); }
.am-msg code { font-family: var(--font-mono); font-size: 11.5px; background: var(--surface-2); padding: 1px 5px; border-radius: 3px; }
.am-arrow { display: flex; align-items: center; justify-content: center; padding: 2px 0; }
.am-arrow span { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); padding: 4px 12px; border: 1px dashed var(--border-soft); border-radius: 999px; background: var(--surface); }

.brain { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.brain .section-head { text-align: center; margin: 0 auto 56px; }
.brain .section-head p { margin: 16px auto 0; }
.brain-stage { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; position: relative; }
.brain-row { display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; }
.brain-agent { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 14px 8px; text-align: center; font-size: 12.5px; font-weight: 600; letter-spacing: -0.01em; color: var(--text); transition: border-color .15s var(--ease), transform .15s var(--ease); }
.brain-agent span { display: block; font-size: 10px; font-weight: 500; color: var(--muted); font-family: var(--font-mono); margin-top: 2px; letter-spacing: .04em; text-transform: uppercase; }
.brain-agent:hover { border-color: var(--text); transform: translateY(-1px); }
.brain-agent-plus { background: var(--surface-2); border-style: dashed; color: var(--text-2); }
.brain-bridge { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 14px; padding: 4px 0; }
.brain-bridge-line { height: 1px; background: linear-gradient(90deg, transparent, var(--border-soft) 20%, var(--border-soft) 80%, transparent); }
.brain-bridge-label { font-family: var(--font-mono); font-size: 10.5px; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; padding: 5px 12px; border: 1px solid var(--border-soft); border-radius: 999px; background: var(--bg-alt); white-space: nowrap; }
.brain-core { text-align: center; background: var(--text); color: var(--bg); border-radius: var(--radius-xl); padding: 22px 28px; position: relative; box-shadow: var(--shadow); }
.brain-core-name { font-family: var(--font-display); font-weight: 600; font-size: 17px; letter-spacing: -0.015em; }
.brain-core-sub { font-family: var(--font-mono); font-size: 11.5px; opacity: .7; margin-top: 4px; letter-spacing: .02em; }
.brain-db { display: flex; align-items: center; gap: 14px; background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 14px 18px; margin-top: 4px; }
.brain-db-icn { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; background: var(--accent-soft); color: var(--accent); }
.brain-db-icn svg { width: 18px; height: 18px; }
.brain-db-name { font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--text); }
.brain-db-sub { font-size: 12.5px; color: var(--text-2); margin-top: 1px; }

.types { border-top: 1px solid var(--border-faint); }
.types .section-head { text-align: center; margin: 0 auto 56px; }
.types .section-head p { margin: 16px auto 0; }
.types-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--border-soft); border-radius: var(--radius-xl); overflow: hidden; background: var(--border-faint); }
.type-tile {
  background: var(--surface); padding: 22px 20px; display: flex; flex-direction: column; gap: 10px;
  transition: background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
  position: relative;
}
.type-tile::before {
  content: ""; position: absolute; left: 0; top: 12px; bottom: 12px; width: 3px; border-radius: 0 2px 2px 0;
  opacity: 0.5; transition: opacity .2s var(--ease);
}
.type-tile:hover { background: var(--surface-2); transform: translateY(-1px); box-shadow: var(--shadow); z-index: 1; }
.type-tile:hover::before { opacity: 1; }

.type-tile-cyan::before   { background: #22d3ee; }
.type-tile-violet::before { background: #a78bfa; }
.type-tile-amber::before  { background: #f59e0b; }
.type-tile-rose::before   { background: #fb7185; }
.type-tile-green::before  { background: #34d399; }
.type-tile-slate::before  { background: #94a3b8; }

.type-chip {
  display: inline-block; font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: 5px; letter-spacing: .02em;
  align-self: flex-start; border: 1px solid transparent;
}
.type-cyan       { background: rgba(34,211,238,.10); color: #0891b2; border-color: rgba(34,211,238,.25); }
.type-cyan-dim   { background: rgba(34,211,238,.06); color: #0e7490; border-color: rgba(34,211,238,.18); }
.type-cyan-dimmer{ background: rgba(34,211,238,.04); color: #155e75; border-color: rgba(34,211,238,.12); }
.type-amber      { background: rgba(245,158,11,.12); color: #b45309; border-color: rgba(245,158,11,.28); }
.type-amber-dim  { background: rgba(245,158,11,.07); color: #92400e; border-color: rgba(245,158,11,.20); }
.type-amber-dimmer{background: rgba(245,158,11,.04); color: #78350f; border-color: rgba(245,158,11,.14); }
.type-rose       { background: rgba(251,113,133,.10); color: #be123c; border-color: rgba(251,113,133,.25); }
.type-rose-dim   { background: rgba(251,113,133,.05); color: #9f1239; border-color: rgba(251,113,133,.15); }
.type-violet     { background: rgba(167,139,250,.10); color: #6d28d9; border-color: rgba(167,139,250,.25); }
.type-violet-dim { background: rgba(167,139,250,.06); color: #5b21b6; border-color: rgba(167,139,250,.18); }
.type-violet-dimmer{background:rgba(167,139,250,.04); color: #4c1d95; border-color: rgba(167,139,250,.12); }
.type-green      { background: rgba(16,185,129,.10); color: #047857; border-color: rgba(16,185,129,.25); }
.type-green-dim  { background: rgba(16,185,129,.06); color: #065f46; border-color: rgba(16,185,129,.18); }
.type-green-dimmer{background:rgba(16,185,129,.04); color: #064e3b; border-color: rgba(16,185,129,.12); }
.type-slate      { background: rgba(100,116,139,.10); color: #475569; border-color: rgba(100,116,139,.25); }
.type-slate-dim  { background: rgba(100,116,139,.06); color: #334155; border-color: rgba(100,116,139,.18); }
[data-theme="dark"] .type-cyan       { color: #67e8f9; }
[data-theme="dark"] .type-cyan-dim   { color: #22d3ee; }
[data-theme="dark"] .type-cyan-dimmer{ color: #06b6d4; }
[data-theme="dark"] .type-amber      { color: #fcd34d; }
[data-theme="dark"] .type-amber-dim  { color: #fbbf24; }
[data-theme="dark"] .type-amber-dimmer{color: #f59e0b; }
[data-theme="dark"] .type-rose       { color: #fda4af; }
[data-theme="dark"] .type-rose-dim   { color: #fb7185; }
[data-theme="dark"] .type-violet     { color: #c4b5fd; }
[data-theme="dark"] .type-violet-dim { color: #a78bfa; }
[data-theme="dark"] .type-violet-dimmer{color:#8b5cf6; }
[data-theme="dark"] .type-green      { color: #6ee7b7; }
[data-theme="dark"] .type-green-dim  { color: #34d399; }
[data-theme="dark"] .type-green-dimmer{color:#10b981; }
[data-theme="dark"] .type-slate      { color: #94a3b8; }
[data-theme="dark"] .type-slate-dim  { color: #64748b; }
.type-desc { font-size: 13px; color: var(--text); font-weight: 500; }
.type-tile-more { border: 1px dashed var(--border-soft); background: var(--bg); }
.type-tile-more::before { display: none; }
.type-tile-more:hover { background: var(--surface); }
.type-chip-more {
  display: inline-block; font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: 5px; letter-spacing: .02em;
  align-self: flex-start; color: var(--muted); background: var(--surface-2);
  border: 1px solid var(--border-soft);
}
.type-tile-more .type-desc {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--muted);
  line-height: 1.6;
}

.graph { border-top: 1px solid var(--border-faint); }
.graph-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 80px; align-items: center; }
.graph-copy h2 { font-size: clamp(28px, 3.8vw, 42px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 20px; }
.graph-lead { color: var(--text-2); font-size: 15.5px; line-height: 1.65; margin-bottom: 28px; max-width: 520px; }
.assoc-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.assoc-item { display: grid; grid-template-columns: 130px 1fr; gap: 16px; align-items: start; background: var(--surface); border: 1px solid var(--border-faint); border-radius: var(--radius); padding: 14px 16px; }
.assoc-rel { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; padding: 4px 9px; border-radius: 5px; align-self: start; justify-self: start; letter-spacing: .02em; }
.rel-supports    { background: rgba(16,185,129,.10); color: #047857; border: 1px solid rgba(16,185,129,.25); }
.rel-contradicts { background: rgba(251,113,133,.10); color: #be123c; border: 1px solid rgba(251,113,133,.25); }
.rel-supersedes  { background: rgba(245,158,11,.10); color: #b45309; border: 1px solid rgba(245,158,11,.25); }
.rel-caused      { background: rgba(34,211,238,.10); color: #0891b2; border: 1px solid rgba(34,211,238,.25); }
.rel-implies     { background: rgba(167,139,250,.10); color: #6d28d9; border: 1px solid rgba(167,139,250,.25); }
[data-theme="dark"] .rel-supports    { color: #6ee7b7; }
[data-theme="dark"] .rel-contradicts { color: #fda4af; }
[data-theme="dark"] .rel-supersedes  { color: #fcd34d; }
[data-theme="dark"] .rel-caused      { color: #67e8f9; }
[data-theme="dark"] .rel-implies     { color: #c4b5fd; }
.assoc-body { font-size: 13.5px; color: var(--text-2); line-height: 1.55; }
.assoc-body strong { color: var(--text); font-weight: 600; }
.assoc-body code { font-family: var(--font-mono); font-size: 11.5px; background: var(--surface-2); padding: 1px 5px; border-radius: 3px; color: var(--text); }
.graph-note { font-family: var(--font-mono); font-size: 12px; color: var(--muted); padding: 10px 14px; background: var(--surface); border: 1px dashed var(--border-soft); border-radius: var(--radius); }
.graph-note strong { color: var(--text); font-weight: 600; }
.graph-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.graph-card-head {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-faint);
  background: var(--surface-2);
}
.graph-card-title { font-size: 13.5px; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.graph-card-sub { font-family: var(--font-mono); font-size: 11px; color: var(--muted); margin-top: 2px; }
.graph-legend { display: flex; flex-wrap: wrap; gap: 6px; }
.lg-dot {
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 500;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid;
  letter-spacing: .02em;
}
.dot-fact  { background: rgba(34,211,238,.10); border-color: rgba(34,211,238,.30); color: #0891b2; }
.dot-rule  { background: rgba(245,158,11,.10); border-color: rgba(245,158,11,.30); color: #b45309; }
.dot-pref  { background: rgba(167,139,250,.10); border-color: rgba(167,139,250,.30); color: #6d28d9; }
.dot-event { background: rgba(16,185,129,.10); border-color: rgba(16,185,129,.30); color: #047857; }
.dot-goal  { background: rgba(251,113,133,.10); border-color: rgba(251,113,133,.30); color: #be123c; }
[data-theme="dark"] .dot-fact  { color: #67e8f9; }
[data-theme="dark"] .dot-rule  { color: #fcd34d; }
[data-theme="dark"] .dot-pref  { color: #c4b5fd; }
[data-theme="dark"] .dot-event { color: #6ee7b7; }
[data-theme="dark"] .dot-goal  { color: #fda4af; }

.graph-canvas {
  position: relative;
  background: var(--surface);
  aspect-ratio: 720 / 480;
  padding: 0;
  overflow: hidden;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
}
.graph-svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.g-nbg { stroke-width: 1.25; }
.nbg-fact  { fill: rgba(34,211,238,.10);  stroke: rgba(34,211,238,.45); }
.nbg-rule  { fill: rgba(245,158,11,.12);  stroke: rgba(245,158,11,.50); }
.nbg-pref  { fill: rgba(167,139,250,.10); stroke: rgba(167,139,250,.45); }
.nbg-event { fill: rgba(16,185,129,.10);  stroke: rgba(16,185,129,.45); }
.nbg-goal  { fill: rgba(251,113,133,.10); stroke: rgba(251,113,133,.45); }

.g-ntype {
  font-family: var(--font-mono);
  font-size: 8.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  text-anchor: start;
}
.ntype-fact  { fill: #0891b2; }
.ntype-rule  { fill: #b45309; }
.ntype-pref  { fill: #6d28d9; }
.ntype-event { fill: #047857; }
.ntype-goal  { fill: #be123c; }
[data-theme="dark"] .ntype-fact  { fill: #67e8f9; }
[data-theme="dark"] .ntype-rule  { fill: #fcd34d; }
[data-theme="dark"] .ntype-pref  { fill: #c4b5fd; }
[data-theme="dark"] .ntype-event { fill: #6ee7b7; }
[data-theme="dark"] .ntype-goal  { fill: #fda4af; }

.g-ntxt {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  fill: var(--text);
  text-anchor: middle;
  letter-spacing: -0.005em;
}

.g-edge-label rect { fill: var(--surface); stroke: var(--border-soft); stroke-width: 1; }
.g-edge-label text {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-anchor: middle;
  fill: var(--text-2);
  letter-spacing: .01em;
  dominant-baseline: middle;
}

.graph-card-foot {
  display: flex; flex-wrap: wrap; gap: 16px;
  padding: 12px 20px;
  border-top: 1px solid var(--border-faint);
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-2);
  letter-spacing: .02em;
}
.graph-card-foot span { display: inline-flex; align-items: center; gap: 6px; }
.foot-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

.decay-section { border-top: 1px solid var(--border-faint); background: var(--bg-alt); }
.decay-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.decay-copy h2 { font-size: clamp(28px, 3.8vw, 42px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 20px; }
.decay-copy p { color: var(--text-2); font-size: 15.5px; line-height: 1.65; margin-bottom: 16px; max-width: 500px; }
.decay-copy p strong { color: var(--text); font-weight: 600; }
.decay-card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-xl); padding: 24px; box-shadow: var(--shadow); }
.decay-card-head { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; margin-bottom: 18px; }
.decay-card-meta { font-size: 9.5px; padding: 2px 7px; border: 1px solid var(--border-soft); border-radius: 4px; text-transform: uppercase; letter-spacing: .08em; }
.decay-nodes { position: relative; height: 240px; margin: 8px 0 16px; }
.d-node { position: absolute; display: flex; flex-direction: column; align-items: center; gap: 5px; }
.d-bubble {
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  border: 1px solid;
  line-height: 1;
}
.d-bubble-amber-90 { width: 56px; height: 56px; background: rgba(245,158,11,.25); border-color: rgba(245,158,11,.50); color: var(--warn); font-size: 12px; }
.d-bubble-amber-68 { width: 46px; height: 46px; background: rgba(245,158,11,.16); border-color: rgba(245,158,11,.30); color: var(--warn); }
.d-bubble-amber-41 { width: 36px; height: 36px; background: rgba(245,158,11,.08); border-color: rgba(245,158,11,.18); color: rgba(245,158,11,.6); }
.d-bubble-amber-18 { width: 26px; height: 26px; background: rgba(245,158,11,.04); border-color: rgba(245,158,11,.10); color: rgba(245,158,11,.35); font-size: 9px; }
.d-bubble-green-95 { width: 52px; height: 52px; background: rgba(16,185,129,.20); border-color: rgba(16,185,129,.40); color: var(--good); font-size: 12px; }
.d-age { font-family: var(--font-mono); font-size: 9.5px; color: var(--muted); letter-spacing: .02em; }
.d-content { font-size: 10px; color: var(--text-2); text-align: center; max-width: 90px; line-height: 1.3; }
.d-node-pin {  }
.decay-protect-line { position: absolute; left: 0; right: 0; bottom: 28px; border-top: 1px dashed rgba(16,185,129,.30); }
.decay-protect-label { position: absolute; left: 0; bottom: 8px; font-family: var(--font-mono); font-size: 9.5px; color: var(--good); letter-spacing: .04em; opacity: .8; }
.decay-formula { font-family: var(--font-mono); font-size: 12.5px; background: var(--surface-2); border: 1px solid var(--border-faint); border-radius: 8px; padding: 12px 16px; color: var(--text-2); line-height: 1.5; }
.decay-fml-key { color: var(--accent); font-weight: 600; }
.decay-fml-var { color: var(--text); }

.lifecycle { border-top: 1px solid var(--border-faint); }
.lifecycle .section-head { text-align: center; margin: 0 auto 56px; }
.lifecycle .section-head p { margin: 16px auto 0; }
.lc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lc-card {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl); padding: 28px;
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
  position: relative; overflow: hidden;
}
.lc-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  border-radius: 3px 3px 0 0; opacity: 0.4; transition: opacity .2s var(--ease);
}
.lc-card:hover { border-color: var(--text); transform: translateY(-2px); box-shadow: var(--shadow); }
.lc-card:hover::before { opacity: 1; }

.lc-card-forget::before { background: #fb7185; }
.lc-card-compact::before { background: #22d3ee; }
.lc-card-consolidate::before { background: #a78bfa; }
.lc-card-summarize::before { background: #34d399; }

.lc-op { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.lc-icn {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 8px; font-size: 15px; font-weight: 700;
}
.lc-icn-rose   { background: rgba(251,113,133,.15); color: #fb7185; }
.lc-icn-cyan   { background: rgba(34,211,238,.15); color: #0891b2; }
.lc-icn-violet { background: rgba(167,139,250,.15); color: #a78bfa; }
.lc-icn-green  { background: rgba(52,211,153,.15); color: #059669; }
[data-theme="dark"] .lc-icn-rose   { color: #fda4af; }
[data-theme="dark"] .lc-icn-cyan   { color: #67e8f9; }
[data-theme="dark"] .lc-icn-violet { color: #c4b5fd; }
[data-theme="dark"] .lc-icn-green  { color: #6ee7b7; }

.lc-op span:last-child {
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  color: var(--text); letter-spacing: -0.01em;
}
.lc-card h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 6px; }
.lc-card p { font-size: 14px; color: var(--text-2); line-height: 1.6; margin: 0; }
.lc-card p strong { color: var(--text); font-weight: 600; }
.lc-cmd { display: inline-block; font-family: var(--font-mono); font-size: 12px; padding: 6px 10px; background: var(--bg); color: var(--accent); border: 1px solid var(--border-soft); border-radius: 6px; letter-spacing: .01em; }

.episode { border-top: 1px solid var(--border-faint); }
.episode-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.ep-copy h2 { font-size: clamp(28px, 3.8vw, 42px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 20px; }
.ep-copy p { color: var(--text-2); font-size: 15.5px; line-height: 1.65; margin-bottom: 16px; max-width: 500px; }
.ep-copy p strong { color: var(--text); font-weight: 600; }
.ep-copy p code { font-family: var(--font-mono); font-size: 12.5px; background: var(--surface-2); padding: 1px 6px; border-radius: 3px; color: var(--accent); }
.ep-stage { display: flex; flex-direction: column; gap: 12px; }
.ep-card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow); }
.ep-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 14px 18px; background: var(--bg); border-bottom: 1px solid var(--border-faint); }
.ep-head-left { display: flex; align-items: center; gap: 8px; min-width: 0; }
.ep-clock { color: var(--accent); flex-shrink: 0; }
.ep-session-id { font-family: var(--font-mono); font-size: 13px; font-weight: 500; color: var(--accent); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ep-head-right { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.ep-count { font-size: 13px; color: var(--text-2); }
.ep-last { font-size: 12px; color: var(--muted); }
.ep-btn-replay {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: var(--text-2);
  padding: 5px 11px; border-radius: 6px;
  border: 1px solid var(--border-soft); background: var(--surface-2);
  cursor: default;
}
.ep-btn-replay svg { width: 12px; height: 12px; }
.ep-chev { color: var(--muted); }
.ep-chev-up { transform: rotate(180deg); }
.ep-body { padding: 4px 0; }
.ep-mem { display: grid; grid-template-columns: 32px 1fr; gap: 10px; padding: 11px 18px; border-bottom: 1px solid var(--border-faint); align-items: start; }
.ep-mem:last-child { border-bottom: none; }
.ep-num { font-family: var(--font-mono); font-size: 11px; color: var(--muted); padding-top: 1px; text-align: right; }
.ep-text { font-size: 13px; color: var(--text); line-height: 1.5; }
.ep-text code { font-family: var(--font-mono); font-size: 11.5px; background: var(--surface-2); padding: 1px 5px; border-radius: 3px; }
.ep-meta { display: flex; align-items: center; gap: 8px; margin-top: 5px; }
.ep-badge {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  padding: 1px 6px; border-radius: 4px;
  background: rgba(99,102,241,.08); color: var(--accent);
  border: 1px solid rgba(99,102,241,.18);
}
.ep-time { font-family: var(--font-mono); font-size: 10.5px; color: var(--muted); }
.ep-replay {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow);
}
.ep-replay-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border-faint);
  font-size: 14px; font-weight: 600; color: var(--text); letter-spacing: -0.01em;
}
.ep-replay-head svg { color: var(--muted); }
.ep-replay-badges { display: flex; gap: 8px; padding: 12px 18px 0; }
.ep-replay-badges span {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  padding: 2px 8px; border-radius: 5px;
  background: var(--surface-2); color: var(--text-2);
  border: 1px solid var(--border-faint);
}
.ep-replay-text {
  margin: 12px 18px 14px;
  font-family: var(--font-mono); font-size: 12px; line-height: 1.7;
  color: var(--text-2); background: var(--bg);
  border: 1px solid var(--border-faint); border-radius: 8px;
  padding: 14px 16px;
  white-space: pre-wrap; overflow-x: auto;
  max-height: 200px; overflow-y: auto;
}

.tool-group { background: var(--surface); border: 1px solid var(--border-faint); border-radius: var(--radius); padding: 14px 18px; }
.tool-group-label { font-size: 13px; font-weight: 600; color: var(--text); letter-spacing: -0.01em; margin-bottom: 10px; }
.tool-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.tp { font-family: var(--font-mono); font-size: 11.5px; font-weight: 500; padding: 4px 10px; border-radius: 5px; background: var(--accent-soft); color: var(--accent); border: 1px solid rgba(99,102,241,.18); white-space: nowrap; }

.arch { border-top: 1px solid var(--border-faint); }
.arch-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.arch-copy h2 { font-size: clamp(28px, 3.8vw, 42px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 20px; }
.am-copy h2,
.graph-copy h2,
.decay-copy h2,
.ep-copy h2,
.arch-copy h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-optical-sizing: auto;
  letter-spacing: -0.03em;
}
.arch-copy p { color: var(--text-2); font-size: 15.5px; line-height: 1.65; margin-bottom: 16px; max-width: 480px; }
.arch-copy p code { font-family: var(--font-mono); font-size: 12.5px; background: var(--surface-2); padding: 1px 6px; border-radius: 3px; color: var(--accent); }
.arch-spec { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow); }
.arch-row { display: flex; justify-content: space-between; align-items: center; padding: 14px 22px; border-bottom: 1px solid var(--border-faint); gap: 16px; }
.arch-row:last-child { border-bottom: none; }
.arch-label { font-size: 14px; color: var(--text); font-weight: 500; }
.arch-val { font-family: var(--font-mono); font-size: 12px; font-weight: 600; text-align: right; }
.arch-val-narrow { font-size: 11px; }
.val-good   { color: var(--good); }
.val-accent { color: var(--accent); }
.val-warn   { color: var(--warn); }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
  .feat, .feat.reverse { grid-template-columns: 1fr; gap: 40px; }
  .feat.reverse .feat-copy { order: 1; }
  .feat.reverse .feat-visual { order: 2; }
  .feat-copy { padding: 24px; }
  .inside-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-grid { grid-template-columns: 1fr; }
  .hero-shot { max-width: 100%; overflow-x: auto; }
  .app-body { flex-direction: column; min-height: auto; }
  .app-side { width: 100%; flex-direction: row; overflow-x: auto; padding: 0; }
  .app-brand, .app-side-foot { display: none; }
  .app-nav { flex-direction: row; padding: 8px; }
  .app-nav-item { flex-shrink: 0; }
  .app-charts { grid-template-columns: 1fr; }
  .app-stat-row { grid-template-columns: repeat(2, 1fr); }
  .donut-wrap { flex-direction: column; }
  .donut-legend { width: 100%; flex-direction: row; flex-wrap: wrap; gap: 10px; }
  .if-cards { grid-template-columns: 1fr; }
  .if-tools { grid-template-columns: 1fr; }
  .if-tools .tool-group:last-child { grid-column: auto; }
  .brain-row { grid-template-columns: repeat(4, 1fr); }
  .types-grid { grid-template-columns: repeat(2, 1fr); }
  .lc-grid { grid-template-columns: 1fr; }
  .assoc-item { grid-template-columns: 1fr; gap: 8px; }
  .container { padding: 0 20px; }
  .hero-title { font-size: clamp(36px, 10vw, 64px); }
  .section-head h2 { font-size: clamp(28px, 6vw, 40px); }
  section { padding: 72px 0; }

  .amnesia-grid, .graph-grid, .decay-grid, .episode-grid, .arch-grid { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 860px) {
  .amnesia-grid { gap: 40px; }
  .graph-grid { gap: 40px; }
  .decay-grid { gap: 40px; }
  .episode-grid { gap: 40px; }
  .arch-grid { gap: 40px; }
}

@media (max-width: 640px) {
  section { padding: 56px 0; }
  .hero { padding: 64px 0 72px; }
  .hero-eyebrow { font-size: 11px; margin-bottom: 16px; }
  .hero-title { font-size: clamp(32px, 11vw, 48px); line-height: 1.1; margin-bottom: 16px; }
  .hero-sub { font-size: 15px; margin-bottom: 32px; line-height: 1.55; }
  .hero-sub-lead { font-size: 16px; margin-bottom: 14px; }
  .hero-sub-close { margin-top: 16px; padding-top: 12px; }
  .hero-cta { flex-direction: column; align-items: stretch; padding: 0 16px; }
  .btn { justify-content: center; }
  .inside-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .app-main { padding: 16px; }
  .app-stat-row { grid-template-columns: 1fr; }
  .app-side-foot { display: none; }
  .brain-row { grid-template-columns: repeat(2, 1fr); }
  .types-grid { grid-template-columns: 1fr; }
  .brain-bridge { grid-template-columns: 1fr; }
  .brain-bridge-line { display: none; }
  .arch-row { padding: 12px 16px; }
  .ep-mem { grid-template-columns: 50px 1fr; }
  .trust-row { gap: 8px; }
  .trust-pill { font-size: 13px; padding: 8px 14px; }
  .if-illustration { max-width: 100%; }
}

@media (max-width: 580px) {
  .container { padding: 0 18px; }
  section { padding: 48px 0; }
  .hero { padding: 56px 0 64px; }
  .hero-eyebrow { font-size: 10.5px; margin-bottom: 14px; }
  .hero-title { font-size: clamp(28px, 10vw, 42px); margin-bottom: 14px; }
  .hero-sub { font-size: 14px; margin-bottom: 28px; }
  .hero-sub-lead { font-size: 15px; margin-bottom: 12px; }
  .hero-sub-close { margin-top: 14px; padding-top: 10px; }
  .hero-cta { margin-bottom: 48px; padding: 0 8px; gap: 10px; }

  .section-head { margin-bottom: 40px; }
  .section-head h2 { font-size: clamp(24px, 7vw, 34px); }
  .section-head p { font-size: 14.5px; }

  .app-window { border-radius: 8px; }
  .app-side { overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .app-nav { gap: 0; padding: 6px; }
  .app-nav-item { font-size: 12px; padding: 6px 8px; white-space: nowrap; }
  .app-main { padding: 14px; gap: 12px; }
  .app-stat { padding: 12px 14px; border-radius: 6px; }
  .app-stat-value { font-size: 18px; }
  .app-charts { gap: 8px; }
  .app-chart { padding: 12px; border-radius: 6px; }
  .page-title { font-size: 16px; }
  .page-desc { font-size: 11px; }

  .trust { padding: 32px 0; }
  .trust-label { font-size: 11px; margin-bottom: 16px; }
  .trust-pill { font-size: 12px; padding: 8px 12px; border-radius: 6px; }

  .amnesia-grid { gap: 32px; }
  .am-copy { text-align: center; }
  .am-copy h2 { font-size: clamp(24px, 6vw, 34px); }
  .am-copy p { font-size: 14.5px; margin-bottom: 12px; margin-left: auto; margin-right: auto; }
  .am-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .am-stack .am-card.am-lost { grid-column: 1; grid-row: 1; }
  .am-stack .am-card.am-kept { grid-column: 2; grid-row: 1; }
  .am-stack .am-arrow {
    grid-column: 1 / -1;
    grid-row: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0;
  }
  .am-stack .am-arrow::before,
  .am-stack .am-arrow::after {
    content: "";
    flex: 1;
    height: 0;
    border-top: 1px dashed var(--border-soft);
  }
  .am-stack .am-arrow span {
    flex-shrink: 0;
    margin: 0 8px;
  }
  .am-card .am-head { padding: 10px 14px; gap: 6px; font-size: 10.5px; }
  .am-card .am-dot { flex-shrink: 0; }
  .am-card .am-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .am-card .am-tag { flex-shrink: 0; white-space: nowrap; }
  .am-body { padding: 12px 14px; gap: 6px; }
  .am-line { font-size: 12.5px; gap: 8px; }
  .am-role { min-width: 26px; font-size: 10px; }
  .am-arrow span { font-size: 9.5px; padding: 3px 10px; }

  .brain .section-head { margin-bottom: 40px; }
  .brain-agent { padding: 12px 6px; font-size: 11px; border-radius: 8px; }
  .brain-agent span { font-size: 9px; }
  .brain-bridge { gap: 8px; padding: 2px 0; }
  .brain-bridge-label { font-size: 9.5px; padding: 4px 10px; white-space: nowrap; }
  .brain-core { padding: 18px 20px; }
  .brain-core-name { font-size: 15px; }
  .brain-core-sub { font-size: 10.5px; }
  .brain-db { padding: 12px 14px; gap: 10px; }

   .types .section-head { margin-bottom: 40px; }
   .type-tile { padding: 18px 16px; gap: 8px; }
   .type-desc { font-size: 12px; }
   .type-chip { font-size: 10.5px; padding: 3px 8px; }
   .type-chip-more { font-size: 10.5px; }

  .graph-grid { gap: 40px; }
  .graph-card-head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .graph-card-title { font-size: 12.5px; }
  .graph-legend { gap: 4px; }
  .lg-dot { font-size: 9.5px; padding: 2px 6px; }
  .graph-canvas { min-height: 260px; }
  .graph-card-foot { gap: 10px; font-size: 9.5px; padding: 10px 14px; flex-wrap: wrap; }
  .assoc-item { grid-template-columns: 1fr; gap: 8px; padding: 12px 14px; }

  .decay-grid { gap: 40px; }
  .decay-card { padding: 18px 14px; }
  .decay-nodes { overflow-x: auto; min-width: 380px; -webkit-overflow-scrolling: touch; padding-bottom: 6px; }
  .decay-card-head { font-size: 10.5px; margin-bottom: 14px; }
  .decay-formula { font-size: 11.5px; padding: 10px 14px; }

   .lc-card { padding: 22px; }
   .lc-card h3 { font-size: 16px; }
   .lc-icn { width: 28px; height: 28px; font-size: 13px; border-radius: 7px; }

   .episode-grid { gap: 40px; }
   .ep-mem { padding: 10px 14px; }
   .ep-head { padding: 12px 14px; flex-wrap: wrap; }
   .ep-head-right { flex-wrap: wrap; gap: 8px; }
   .ep-last { display: none; }
   .ep-replay-head { padding: 12px 14px; font-size: 13px; }
   .ep-replay-badges { padding: 10px 14px 0; gap: 6px; }
   .ep-replay-text { margin: 10px 14px 12px; padding: 10px 12px; font-size: 11px; }
   .ep-mem { grid-template-columns: 26px 1fr; gap: 8px; }

   .if-card { padding: 22px 18px; }
   .if-card h3 { font-size: 16px; }

  .dl-card { padding: 20px 20px 0; }
  .dl-name { font-size: 17px; }
  .dl-meta { font-size: 12px; }
  .dl-btn { padding: 12px 0; font-size: 13.5px; }

  .arch-grid { gap: 40px; }
  .arch-row { padding: 12px 16px; }
  .arch-label { font-size: 13px; }
  .arch-val { font-size: 11px; }
  .arch-val-narrow { font-size: 10px; }

   .faq summary { font-size: 14.5px; padding: 16px 18px; }
   .faq details p { padding: 0 18px 16px; font-size: 13.5px; }
   .faq details pre { margin: 0 18px 16px; padding: 12px 14px; }
   .faq details pre code { font-size: 11px; }

  .if-tools-label { font-size: 10px; margin-bottom: 10px; }
  .tool-group { padding: 12px 14px; }
  .tool-pills { gap: 4px; }
  .tp { font-size: 10.5px; padding: 3px 8px; }
}

@media (max-width: 420px) {
  .container { padding: 0 14px; }
  section { padding: 40px 0; }
  .hero { padding: 44px 0 52px; }
  .hero-eyebrow { font-size: 10px; margin-bottom: 12px; }
  .hero-eyebrow .dot { width: 5px; height: 5px; }
  .hero-title { font-size: clamp(26px, 10vw, 36px); line-height: 1.1; }
  .hero-sub { font-size: 13.5px; }
  .hero-sub-lead { font-size: 14px; margin-bottom: 10px; }
  .hero-sub-close { margin-top: 12px; padding-top: 8px; }

  .site-header { height: auto; }
  .header-inner { height: 52px; gap: 8px; padding: 0 2px; }
  .logo-text { font-size: 14px; }
  .logo img { width: 24px; height: 24px; }

  .mobile-nav { top: 52px; padding: 16px 20px; }
  .mobile-nav a { font-size: 15px; padding: 12px 14px; }

  .app-stat-row { gap: 8px; }
  .app-stat { padding: 10px 12px; }
  .app-stat-value { font-size: 16px; }
  .app-stat-label { font-size: 10.5px; }
  .app-stat-sub { font-size: 10px; }

  .trust-pill { font-size: 11px; padding: 7px 10px; border-radius: 6px; }
  .trust-row { gap: 6px; }

  .amnesia-grid { gap: 28px; }
  .am-copy { text-align: center; }
  .am-copy h2 { font-size: clamp(22px, 7vw, 30px); }
  .am-copy p { font-size: 13.5px; }
  .am-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .am-stack .am-card.am-lost { grid-column: 1; grid-row: 1; }
  .am-stack .am-card.am-kept { grid-column: 2; grid-row: 1; }
  .am-stack .am-arrow {
    grid-column: 1 / -1;
    grid-row: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0;
  }
  .am-stack .am-arrow::before,
  .am-stack .am-arrow::after {
    content: "";
    flex: 1;
    height: 0;
    border-top: 1px dashed var(--border-soft);
  }
  .am-stack .am-arrow span {
    flex-shrink: 0;
    margin: 0 6px;
  }
  .am-card { border-radius: 12px; }
  .am-head { font-size: 10px; gap: 6px; padding: 9px 12px; }
  .am-dot { flex-shrink: 0; }
  .am-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .am-tag { font-size: 8.5px; padding: 2px 5px; flex-shrink: 0; white-space: nowrap; }
  .am-body { padding: 10px 12px; }
  .am-line { font-size: 12px; gap: 8px; }
  .am-role { min-width: 24px; font-size: 9.5px; }
  .am-msg code { font-size: 10.5px; }
  .am-arrow span { font-size: 9px; padding: 3px 8px; }

  .brain .section-head { margin-bottom: 32px; }
  .brain-stage { gap: 10px; }
  .brain-row { gap: 6px; }
  .brain-agent { font-size: 10.5px; padding: 10px 4px; border-radius: 6px; }
  .brain-agent span { font-size: 8.5px; }
  .brain-bridge-label { font-size: 8.5px; padding: 3px 8px; }
  .brain-core { padding: 14px 18px; }
  .brain-core-name { font-size: 14px; }
  .brain-core-sub { font-size: 10px; }

   .types .section-head { margin-bottom: 32px; }
   .type-tile { padding: 16px 14px; gap: 6px; }
   .type-desc { font-size: 11.5px; }
   .type-chip { font-size: 10px; padding: 3px 7px; }
   .type-chip-more { font-size: 10px; }

  .graph-copy h2 { font-size: clamp(22px, 7vw, 30px); }
  .graph-lead { font-size: 13.5px; }
  .graph-canvas { min-height: 240px; }
  .assoc-body { font-size: 12.5px; }
  .graph-note { font-size: 10.5px; padding: 8px 12px; }

  .decay-copy h2 { font-size: clamp(22px, 7vw, 30px); }
  .decay-copy p { font-size: 13.5px; }
  .decay-nodes { min-width: 340px; }
  .decay-formula { font-size: 10.5px; }

   .lc-grid { gap: 10px; }
   .lc-card { padding: 18px 14px; }
   .lc-icn { width: 26px; height: 26px; font-size: 12px; border-radius: 6px; }

   .ep-copy h2 { font-size: clamp(22px, 7vw, 30px); }
   .ep-mem { grid-template-columns: 22px 1fr; gap: 8px; padding: 10px 12px; }
   .ep-num { font-size: 10px; }
   .ep-text { font-size: 12px; }
   .ep-head { padding: 10px 12px; }
   .ep-session-id { font-size: 11px; }
   .ep-count { font-size: 11px; }
   .ep-btn-replay { font-size: 11px; padding: 4px 8px; }
   .ep-replay-text { font-size: 10.5px; max-height: 160px; }

  .arch-copy h2 { font-size: clamp(22px, 7vw, 30px); }
  .arch-copy p { font-size: 13.5px; }
  .arch-row { flex-direction: column; align-items: flex-start; gap: 2px; padding: 10px 14px; }
  .arch-val { text-align: left; font-size: 11px; }
  .arch-val-narrow { font-size: 10px; }

  .dl-card { padding: 18px 18px 0; }
  .dl-card-top { gap: 12px; }
  .dl-platform { width: 40px; height: 40px; border-radius: 10px; }
  .dl-platform svg { width: 22px; height: 22px; }
  .dl-btn { margin: auto -18px 0; padding: 11px 0; font-size: 13px; }
  .dl-foot { margin-top: 32px; flex-wrap: wrap; }
  .dl-foot-badge { font-size: 10px; padding: 5px 10px; }
  .dl-foot-link { font-size: 13px; }

  .footer-inner { gap: 12px; }
  .foot-links { gap: 16px; }
  .foot-brand { font-size: 14px; }

  .search-bar { padding: 8px 12px; }
  .s-text { font-size: 12px; }
  .s-mode { font-size: 9.5px; }
  .sr-card { padding: 10px; gap: 8px; }
  .sr-content { font-size: 12px; }
  .sr-badge { font-size: 9.5px; padding: 2px 6px; }
  .sr-bar-label { width: 26px; font-size: 8.5px; }
  .sr-bar-val { width: 32px; font-size: 9.5px; }

   .inside-grid { border-radius: 10px; }
  .ic { padding: 24px 20px; }
  .ic h4 { font-size: 16px; }
  .ic p { font-size: 13px; }

   .faq details { border-radius: 10px; }
   .faq summary { font-size: 14px; padding: 14px 16px; }
   .faq details p { padding: 0 16px 14px; font-size: 13px; }
   .faq details pre { margin: 0 16px 14px; padding: 10px 12px; }
   .faq details pre code { font-size: 10.5px; }

  .decay-protect-label { font-size: 8.5px; bottom: 6px; }
}

@media (max-width: 360px) {
  .container { padding: 0 12px; }
  .logo-text { font-size: 13px; }
  .header-inner { gap: 4px; }
  .logo img { width: 22px; height: 22px; }
  .theme-toggle { width: 28px; height: 28px; }
  .mobile-menu-btn { padding: 4px; }

  .hero-title { font-size: 24px; }
  .hero-sub { font-size: 12.5px; }
  .hero-sub-lead { font-size: 13px; margin-bottom: 8px; }
  .hero-sub-close { margin-top: 10px; padding-top: 6px; }

  .am-stack {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .am-stack .am-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 2px 0;
  }
  .am-stack .am-arrow::before,
  .am-stack .am-arrow::after {
    content: none;
  }

  .app-nav-item { font-size: 11px; padding: 5px 6px; }
  .app-stat { padding: 8px 10px; }
  .app-stat-value { font-size: 15px; }
  .app-chart-head { font-size: 12px; margin-bottom: 10px; }

  .brain-agent { padding: 8px 3px; font-size: 9.5px; }
  .brain-bridge-label { font-size: 8px; padding: 3px 6px; }

  .type-tile { padding: 12px 10px; }

  .graph-card-head { padding: 12px 14px; }
  .graph-legend { gap: 3px; }
  .lg-dot { font-size: 8.5px; padding: 1px 4px; }
  .graph-card-foot { gap: 8px; padding: 8px 12px; font-size: 9px; }

  .decay-nodes { min-width: 320px; }

  .dl-platform { width: 36px; height: 36px; }
  .dl-platform svg { width: 20px; height: 20px; }
  .dl-name { font-size: 15px; }

  .arch-row { padding: 8px 12px; }
  .arch-label { font-size: 12px; }
  .arch-val { font-size: 10px; }
}

@media (hover: none) and (pointer: coarse) {
  .nav-links a { min-height: 44px; display: inline-flex; align-items: center; }
  .btn { min-height: 44px; }
  .faq summary { min-height: 44px; }
  .app-nav-item { min-height: 40px; }
  .trust-pill { min-height: 40px; display: inline-flex; align-items: center; }
  .dl-btn { min-height: 48px; display: flex; align-items: center; }
  .foot-links a { min-height: 32px; display: inline-flex; align-items: center; }
  .mobile-nav a { min-height: 48px; display: flex; align-items: center; }
  .mobile-menu-btn { width: 44px; height: 44px; }
  .theme-toggle { width: 44px; height: 44px; }
}