@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,700&family=Manrope:wght@400;600;700;800&display=swap');

:root {
  --bg-paper: #f8f4ee;
  --bg-mist: #edf7ff;
  --bg-warm: #f1e6da;
  --ink-strong: #18263d;
  --ink-soft: #4d617a;
  --ink-muted: #6e7f96;
  --accent-sky: #35b8ff;
  --accent-cobalt: #4f6cff;
  --accent-orange: #ff8a48;
  --accent-gold: #ffc98d;
  --accent-primary-gradient: linear-gradient(135deg, var(--accent-cobalt), var(--accent-orange));
  --accent-violet: #6f8cff;
  --panel-night: #0f1727;
  --panel-night-alt: #16233a;
  --panel-border: rgba(255, 255, 255, 0.58);
  --glass-fill: rgba(255, 250, 245, 0.5);
  --glass-strong: rgba(255, 255, 255, 0.68);
  --shadow-soft: 0 24px 56px rgba(43, 62, 92, 0.1);
  --shadow-strong: 0 42px 92px rgba(28, 43, 72, 0.16);
  --radius-xl: 2rem;
  --radius-lg: 1.45rem;
  --radius-md: 1.1rem;
  --content-width: min(1440px, calc(100vw - 3rem));
  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  --font-body: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", "SF Mono", "IBM Plex Mono", "Menlo", "Consolas", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink-strong);
  font-family: var(--font-body);
  line-height: 1.7;
  background:
    radial-gradient(circle at 12% 16%, rgba(112, 193, 255, 0.18), transparent 24%),
    radial-gradient(circle at 88% 10%, rgba(255, 176, 121, 0.18), transparent 26%),
    radial-gradient(circle at 72% 78%, rgba(106, 141, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #fffaf5 0%, var(--bg-paper) 42%, var(--bg-warm) 74%, #edf5ff 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  top: -9rem;
  height: 30rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 246, 236, 0.24)),
    radial-gradient(140% 100% at 50% 0%, rgba(190, 226, 255, 0.42) 0%, rgba(190, 226, 255, 0) 72%);
  filter: blur(36px);
}

body::after {
  inset: auto auto 8% 72%;
  width: 26rem;
  height: 26rem;
  background: radial-gradient(circle, rgba(255, 167, 112, 0.16), transparent 72%);
  filter: blur(30px);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

code {
  font-family: var(--font-mono);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  z-index: 30;
  background: rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(8px);
}

.scroll-progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-sky), var(--accent-cobalt), var(--accent-orange));
  box-shadow: 0 0 18px rgba(53, 184, 255, 0.45);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: var(--content-width);
  margin: 0 auto;
  padding: 1.2rem 0 3.8rem;
}

.glass-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 247, 240, 0.28)),
    var(--glass-fill);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
}

.dark-panel {
  background:
    linear-gradient(180deg, var(--panel-night-alt), var(--panel-night));
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-strong);
  color: rgba(255, 247, 240, 0.92);
}

.dark-panel .eyebrow,
.dark-panel .card-label {
  color: var(--accent-gold);
}

.dark-panel h2,
.dark-panel h3,
.dark-panel strong {
  color: #fff;
}

.dark-panel p {
  color: rgba(255, 247, 240, 0.72);
}

.dark-panel .evidence-card {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.dark-panel .evidence-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
}

.dark-panel .evidence-card h3 {
  color: rgba(255, 247, 240, 0.96);
}

.dark-panel .evidence-card p {
  color: rgba(255, 247, 240, 0.62);
}

.visual-reserve {
  display: none;
}

.story,
.faq {
  background: rgba(255, 252, 248, 0.62);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.44);
}

.architecture-shell,
.demos-shell {
  background: rgba(255, 252, 248, 0.48);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.38);
}

.js .section-animate {
  opacity: 0;
  transform: translateY(24px);
}

.js .section-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.site-header {
  position: sticky;
  top: 1rem;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 0.95rem 1.15rem;
  margin-bottom: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  flex-shrink: 0;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 16px 28px rgba(63, 101, 188, 0.24));
}

.brand-lockup {
  display: grid;
  min-width: 0;
}

.brand-lockup strong {
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.brand-lockup small {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: nowrap;
  gap: 0;
  white-space: nowrap;
}

.brand-wordmark-accent {
  display: inline-block;
  position: relative;
  font-weight: inherit;
  transform: translateY(0);
  transform-origin: 50% 85%;
  text-shadow:
    0 1px 12px rgba(24, 38, 61, 0.1),
    0 0 12px var(--wordmark-glow, rgba(255, 255, 255, 0));
  backface-visibility: hidden;
  will-change: transform;
  animation: brandWordmarkFloat 5.2s linear infinite;
}

.brand-wordmark-accent.is-red {
  color: #e15a4b;
  --wordmark-glow: rgba(225, 90, 75, 0.28);
  animation-delay: 0s;
}

.brand-wordmark-accent.is-gold {
  color: #d7ab26;
  --wordmark-glow: rgba(215, 171, 38, 0.26);
  animation-delay: -1.3s;
}

.brand-wordmark-accent.is-green {
  color: #47a964;
  --wordmark-glow: rgba(71, 169, 100, 0.28);
  animation-delay: -2.6s;
}

.brand-wordmark-accent.is-blue {
  color: #3988ee;
  --wordmark-glow: rgba(57, 136, 238, 0.28);
  animation-delay: -3.9s;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  flex-wrap: wrap;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.78rem 1rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-weight: 700;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="true"] {
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink-strong);
  transform: translateY(-1px);
}

.nav-stack {
  display: inline-grid;
  justify-items: center;
  gap: 0.1rem;
  line-height: 1.05;
}

.nav-label {
  font-size: 0.92rem;
  font-weight: 800;
}

.nav-sub {
  display: inline-grid;
  justify-items: center;
  gap: 0.12rem;
  font-size: 0.67rem;
  color: rgba(77, 97, 122, 0.9);
  font-weight: 600;
}

.nav-sub::before {
  content: "";
  width: 1.3rem;
  height: 1px;
  border-radius: 999px;
  background: rgba(77, 97, 122, 0.24);
}

.nav-cta {
  color: #fffdf8 !important;
  background: var(--accent-primary-gradient);
  box-shadow: 0 18px 38px rgba(90, 98, 198, 0.24);
}

.nav-cta:focus-visible {
  outline: 2.5px solid var(--accent-cobalt);
  outline-offset: 3px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  border: 1px solid rgba(77, 97, 122, 0.18);
  transition: background-color 0.18s ease, color 0.18s ease;
}

.lang-switch:hover,
.lang-switch:focus-visible {
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink-strong);
  outline: none;
}

.repo-link {
  gap: 0.55rem;
}

.github-link-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
}

.github-link-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.nav-toggle {
  display: none;
  width: 2.9rem;
  height: 2.9rem;
  border: 0;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink-strong);
  align-items: center;
  justify-content: center;
  gap: 0.28rem;
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 0.24s ease;
}

.js.nav-open .nav-toggle span:first-child {
  transform: translateY(0.16rem) rotate(45deg);
}

.js.nav-open .nav-toggle span:last-child {
  transform: translateY(-0.16rem) rotate(-45deg);
}

main {
  display: grid;
  gap: clamp(3rem, 6vw, 5rem);
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.hero-intro,
.hero-stage,
.story,
.reserve-shell,
.demos-shell,
.architecture-shell,
.evidence,
.faq,
.final-cta {
  padding: clamp(1.35rem, 2.8vw, 2rem);
}

.hero-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 30rem);
  align-items: start;
  column-gap: clamp(1.5rem, 3vw, 3rem);
}

.eyebrow,
.card-label,
.structure-detail-eyebrow,
.path-label,
.shot-badge,
.mini-label,
.command-label {
  margin: 0;
  color: var(--accent-orange);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 800;
}

.structure-detail-eyebrow,
.path-label,
.command-label-en,
.card-label,
.shot-badge,
.mini-label {
  text-transform: none;
  letter-spacing: 0.06em;
}

.eyebrow-sep {
  margin: 0 0.3rem;
  opacity: 0.7;
}

.lead-sentence,
.hero-copy-block h2,
.stage-header h2,
.section-copy h2,
.chapter-card h3,
.note-card h3,
.demo-copy h3,
.structure-detail strong,
.evidence-card h3,
.final-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.lead-sentence {
  margin-top: 0.72rem;
  font-size: clamp(2.3rem, 4.3vw, 4.65rem);
  max-width: 14ch;
}

.lead-english,
.section-english,
.command-label-en,
.structure-english,
.hero-copy-block p,
.stage-header p,
.chapter-card p,
.note-card p,
.demo-copy p,
.evidence-card p,
.final-copy p {
  color: var(--ink-soft);
}

.lead-english {
  margin-top: 1rem;
  max-width: 61ch;
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.6;
}

.hero-logo-lockup {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1.3rem;
  width: min(100%, 26rem);
  min-height: clamp(10rem, 14vw, 12.5rem);
  margin-bottom: 1rem;
  padding: clamp(1.2rem, 2vw, 1.65rem) clamp(1.35rem, 2.4vw, 1.9rem);
  border-radius: 1.85rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(250, 246, 240, 0.72));
  border: 1px solid rgba(255, 255, 255, 0.76);
  box-shadow: 0 30px 58px rgba(27, 45, 89, 0.16);
  will-change: transform;
  animation: heroLogoFloat 6.8s ease-in-out infinite;
}

.hero-logo-lockup img {
  display: block;
  width: clamp(5.8rem, 7vw, 7rem);
  height: clamp(5.8rem, 7vw, 7rem);
  flex-shrink: 0;
  object-fit: contain;
  filter: drop-shadow(0 22px 34px rgba(49, 91, 176, 0.22));
  transition: transform 0.22s ease, filter 0.22s ease;
}

.hero-logo-copy {
  display: grid;
  gap: 0.35rem;
  transition: transform 0.22s ease;
}

.hero-logo-copy strong {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.1vw, 1.9rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.hero-logo-copy span {
  max-width: 34ch;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.55;
}

.hero-logo-lockup {
  grid-column: 2;
  grid-row: 1 / span 3;
  justify-self: center;
  align-self: center;
  margin-inline-start: clamp(-5.25rem, -3.2vw, -3rem);
  margin-bottom: 0;
}

.eyebrow,
.lead-sentence,
.lead-english {
  grid-column: 1;
}

.hero-actions,
.hero-copy-grid,
.command-label,
.hero-terminal,
.hero-metrics {
  grid-column: 1 / -1;
}

.hero-copy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}

.hero-copy-block {
  padding: 1.1rem 1.15rem;
  border-radius: 1.35rem;
  background: rgba(255, 252, 247, 0.48);
  border: 1px solid rgba(255, 255, 255, 0.54);
}

.hero-copy-block-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(250, 246, 240, 0.46));
}

.hero-copy-block h2,
.stage-header h2,
.section-copy h2,
.final-copy h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.28rem);
}

.hero-copy-block p,
.stage-header p,
.section-copy p,
.final-copy p,
.structure-detail p {
  margin: 0.45rem 0 0;
}

.hero-actions,
.final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.55rem;
}

.button,
.copy-button,
.footer-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.84rem 1.3rem;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.button:hover,
.button:focus-visible,
.copy-button:hover,
.copy-button:focus-visible,
.footer-link:hover,
.footer-link:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--accent-primary-gradient);
  background-repeat: no-repeat;
  background-size: 160% 160%;
  background-position: center;
  color: #fffdf8;
  box-shadow: 0 18px 38px rgba(90, 98, 198, 0.24);
}

.button.secondary,
.copy-button,
.footer-link {
  background: rgba(255, 251, 247, 0.72);
  border-color: rgba(114, 128, 155, 0.18);
  color: var(--ink-strong);
}

.button.secondary.repo-link,
.footer-link.repo-link {
  justify-content: center;
}

.command-label {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  margin-top: 1.75rem;
}

.command-label-en {
  font-size: 0.82rem;
}

.hero-terminal,
.demo-shell-frame {
  margin-top: 0.78rem;
  overflow: hidden;
  border-radius: 1.35rem;
  background: rgba(15, 23, 39, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 48px rgba(16, 23, 41, 0.2);
}

.terminal-toolbar,
.demo-shell-top,
.browser-bar {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 248, 240, 0.82);
}

.terminal-dots,
.browser-dots {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

.terminal-dots span,
.browser-dots span {
  display: block;
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 999px;
}

.terminal-dots span:nth-child(1),
.browser-dots span:nth-child(1) {
  background: #ff5f57;
}

.terminal-dots span:nth-child(2),
.browser-dots span:nth-child(2) {
  background: #febc2e;
}

.terminal-dots span:nth-child(3),
.browser-dots span:nth-child(3) {
  background: #28c840;
}

.terminal-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.terminal-tab {
  min-height: 2rem;
  padding: 0.28rem 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.8rem;
  font-weight: 700;
}

.terminal-tab.is-active,
.terminal-tab:hover,
.terminal-tab:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.26);
}

.copy-button {
  margin-left: auto;
  min-height: 2.3rem;
  padding: 0.42rem 0.84rem;
  font-size: 0.82rem;
}

.copy-button.is-copied {
  color: #167c45;
  border-color: rgba(22, 124, 69, 0.28);
}

.demo-media-wrap {
  padding: 1rem 1.05rem 0;
}

.demo-video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 1rem;
  background: rgba(5, 10, 18, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.terminal-body,
.demo-shell-body {
  padding: 1rem 1.05rem;
}

.command-panel,
.demo-line,
.pane-line {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: rgba(255, 247, 241, 0.92);
}

.command-panel {
  display: none;
}

.command-panel.is-active {
  display: flex;
}

.prompt,
.pane-prompt {
  flex-shrink: 0;
  color: #63f0af;
  font-weight: 700;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}

.hero-metrics article,
.chapter-card,
.note-card,
.shot-card,
.demo-card,
.evidence-card,
.faq-item,
.browser-frame,
.map-shell {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.52);
  background: rgba(255, 252, 248, 0.44);
}

.hero-metrics article {
  padding: 1.05rem 1.12rem;
}

.hero-metrics strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.34rem;
}

.hero-metrics span {
  display: block;
  margin-top: 0.18rem;
  font-weight: 700;
}

.hero-metrics small {
  display: block;
  margin-top: 0.3rem;
  color: var(--ink-soft);
}

.hero-stage {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1.2rem;
  min-height: 100%;
}

.stage-scene {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.78fr);
  gap: 1rem;
  min-height: 100%;
}

.browser-frame {
  overflow: hidden;
  background: rgba(14, 20, 32, 0.9);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 28px 56px rgba(14, 20, 32, 0.24);
  transform:
    perspective(1200px)
    rotateX(var(--stage-tilt-x, 0deg))
    rotateY(var(--stage-tilt-y, 0deg))
    translate3d(var(--stage-shift-x, 0px), var(--stage-shift-y, 0px), 0);
  will-change: transform;
}

.browser-bar {
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.browser-address {
  min-width: 0;
  flex: 1 1 auto;
  padding: 0.52rem 0.82rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.74);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-state {
  padding: 0.42rem 0.76rem;
  border-radius: 999px;
  background: rgba(53, 184, 255, 0.18);
  color: #d8f5ff;
  font-size: 0.76rem;
  font-weight: 700;
}

.browser-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22rem;
  gap: 0;
  min-height: clamp(22rem, 28vw, 34rem);
}

.browser-page {
  padding: 1.25rem;
  background:
    radial-gradient(circle at top left, rgba(53, 184, 255, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(16, 24, 40, 0.98), rgba(18, 25, 42, 0.94));
}

.page-ribbon {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0.36rem 0.78rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #dceafe;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
  margin-top: 1rem;
}

.page-grid article,
.workspace-chip,
.pane-card {
  padding: 1rem;
  border-radius: 1.2rem;
}

.page-grid article {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #f8fbff;
}

.page-grid strong,
.workspace-chip strong,
.pane-card header,
.demo-copy h3,
.evidence-card h3,
.chapter-card h3,
.note-card h3 {
  display: block;
}

.page-grid strong {
  font-size: 1.02rem;
}

.page-grid p {
  margin: 0.32rem 0 0;
  color: rgba(220, 235, 255, 0.72);
}

.mini-label {
  color: rgba(181, 226, 255, 0.92);
}

.sidepanel-frame {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 0.9rem;
  padding: 1rem;
  background:
    linear-gradient(180deg, rgba(18, 23, 37, 0.96), rgba(12, 16, 28, 0.98));
  border-left: 1px solid rgba(255, 255, 255, 0.07);
}

.sidepanel-toolbar {
  display: grid;
  gap: 0.72rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  min-height: 2rem;
  padding: 0.34rem 0.72rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #f2f8ff;
  font-size: 0.8rem;
  font-weight: 700;
}

.status-pill span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: #5af2a5;
  box-shadow: 0 0 12px rgba(90, 242, 165, 0.5);
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.toolbar-actions span,
.workspace-chip small,
.pane-binding,
.pane-output {
  color: rgba(214, 226, 247, 0.72);
}

.toolbar-actions span {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.62rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.78rem;
}

.workspace-strip,
.pane-stack,
.scene-notes,
.reserve-grid,
.demo-grid,
.evidence-grid,
.footer-nav {
  display: grid;
  gap: 0.95rem;
}

.workspace-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.workspace-chip.is-active {
  background: linear-gradient(135deg, rgba(79, 108, 255, 0.18), rgba(53, 184, 255, 0.14));
  border-color: rgba(126, 154, 255, 0.24);
}

.workspace-chip small {
  display: block;
  margin-top: 0.18rem;
}

.pane-stack {
  align-content: start;
}

.pane-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pane-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  font-size: 0.82rem;
}

.pane-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.24rem 0.58rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
}

.pane-claude .pane-badge {
  background: linear-gradient(135deg, #f17854, #ffb058);
}

.pane-codex .pane-badge {
  background: linear-gradient(135deg, #4f6cff, #35b8ff);
}

.pane-body {
  margin-top: 0.8rem;
}

.pane-output {
  margin-top: 0.5rem;
  font-size: 0.84rem;
}

.scene-notes {
  grid-template-columns: 1fr;
}

.note-card,
.chapter-card,
.evidence-card,
.demo-card,
.shot-card {
  padding: 1.1rem 1.15rem;
}

.chapter-grid,
.evidence-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.chapter-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.2rem;
}

.chapter-index {
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(79, 108, 255, 0.16), rgba(255, 138, 72, 0.12));
  color: var(--accent-cobalt);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  margin-bottom: 0.9rem;
}

.card-icon {
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  width: 3.35rem;
  height: 3.35rem;
  border-radius: 1.05rem;
  background: linear-gradient(145deg, var(--icon-start), var(--icon-end));
  border: 1px solid rgba(112, 130, 171, 0.22);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.58),
    0 10px 24px rgba(39, 54, 86, 0.08);
  color: var(--icon-color);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.card-icon svg {
  width: 1.82rem;
  height: 1.82rem;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card-icon .icon-fill {
  fill: currentColor;
  opacity: 0.14;
  stroke: none;
}

.dark-panel .card-icon {
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 12px 28px rgba(6, 10, 21, 0.32);
}

.dark-panel .card-icon .icon-fill {
  opacity: 0.2;
}

.chapter-card .card-topline {
  margin-bottom: 0.95rem;
}

.point-list {
  margin: 0.82rem 0 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
}

.point-list li + li {
  margin-top: 0.35rem;
}

.reserve-grid,
.demo-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.3rem;
}

.shot-frame {
  position: relative;
  min-height: 18rem;
  overflow: hidden;
  border-radius: 1.2rem;
  background:
    linear-gradient(145deg, rgba(67, 113, 255, 0.18), rgba(255, 176, 121, 0.18)),
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.42), transparent 44%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.64), rgba(236, 246, 255, 0.24));
  border: 1px dashed rgba(88, 114, 164, 0.28);
}

.shot-frame-alt {
  background:
    linear-gradient(145deg, rgba(53, 184, 255, 0.18), rgba(99, 242, 175, 0.18)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.64), rgba(241, 248, 255, 0.28));
}

.shot-frame-diagram {
  background:
    linear-gradient(145deg, rgba(255, 138, 72, 0.18), rgba(126, 154, 255, 0.18)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.64), rgba(253, 242, 231, 0.28));
}

.shot-overlay {
  position: absolute;
  inset: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 0.32rem;
  padding: 1rem;
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(24, 38, 61, 0), rgba(24, 38, 61, 0.1) 68%, rgba(24, 38, 61, 0.14));
}

.shot-overlay strong {
  font-family: var(--font-display);
  font-size: 1.28rem;
}

.shot-overlay p,
.demo-copy p {
  margin: 0;
}

.shot-meta,
.demo-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.92rem;
}

.shot-meta code,
.demo-meta-row code {
  display: inline-flex;
  align-items: center;
  min-height: 2.15rem;
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  background: rgba(255, 251, 247, 0.82);
  border: 1px solid rgba(114, 128, 155, 0.16);
  color: var(--ink-strong);
  font-size: 0.82rem;
}

.demo-copy {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.95rem;
}

.demo-shell-frame-alt {
  background: rgba(14, 21, 37, 0.96);
}

.demo-shell-frame-command {
  background: rgba(17, 22, 36, 0.96);
}

.demo-line + .demo-line {
  margin-top: 0.52rem;
}

.architecture-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(19rem, 0.86fr);
  gap: 1rem;
  align-items: stretch;
  margin-top: 1.2rem;
}

.map-shell {
  padding: 1rem;
  background: rgba(255, 252, 248, 0.34);
}

.map-shell svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.map-line {
  fill: none;
  stroke: url(#ccLine);
  stroke-width: 7;
  stroke-linecap: round;
}

.map-node-group {
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.map-node-group:focus,
.map-node-group:focus-visible {
  outline: none;
}

.map-node {
  fill: rgba(255, 251, 246, 0.96);
  stroke: rgba(95, 118, 170, 0.28);
  stroke-width: 2;
  transition: fill 0.22s ease, stroke 0.22s ease, filter 0.22s ease;
}

.map-node-group.is-active .map-node,
.map-node-group:hover .map-node,
.map-node-group:focus .map-node,
.map-node-group:focus-visible .map-node {
  fill: rgba(235, 245, 255, 0.98);
  stroke: rgba(79, 108, 255, 0.5);
  filter: drop-shadow(0 6px 16px rgba(79, 108, 255, 0.18));
}

.map-shell text {
  text-anchor: middle;
  font-family: var(--font-body);
  fill: var(--ink-strong);
  font-size: 15px;
  font-weight: 700;
}

.map-sub {
  fill: var(--ink-soft);
  font-size: 11px;
  font-weight: 500;
}

.structure-detail {
  padding: 1.1rem 1.15rem;
}

.structure-detail strong {
  font-size: 1.45rem;
}

.structure-english {
  font-size: 0.94rem;
}

.evidence-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.2rem;
}

.evidence-card h3,
.chapter-card h3,
.note-card h3,
.demo-copy h3 {
  font-size: 1.2rem;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.1rem;
}

.faq-item {
  padding: 1rem 1.08rem;
}

.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ink-strong);
}

.faq-item summary::marker {
  color: var(--accent-orange);
}

.faq-item p {
  margin: 0.76rem 0 0;
  color: var(--ink-soft);
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer {
  padding-top: 1.25rem;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.site-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
}

.footer-link {
  min-height: 2.55rem;
  padding: 0.5rem 0.95rem;
}

@keyframes heroLogoFloat {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }

  50% {
    transform: translate3d(0, -8px, 0);
  }
}

@keyframes brandWordmarkFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  12.5% {
    transform: translateY(-0.24px);
  }

  25% {
    transform: translateY(-0.68px);
  }

  37.5% {
    transform: translateY(-1.28px);
  }

  50% {
    transform: translateY(-1.8px);
  }

  62.5% {
    transform: translateY(-1.28px);
  }

  75% {
    transform: translateY(-0.68px);
  }

  87.5% {
    transform: translateY(-0.24px);
  }
}

@keyframes heroLogoSheen {
  0%,
  18% {
    transform: translate3d(-170%, 0, 0) skewX(-20deg);
    opacity: 0;
  }

  34%,
  52% {
    opacity: 0.72;
  }

  100% {
    transform: translate3d(230%, 0, 0) skewX(-20deg);
    opacity: 0;
  }
}

.interactive-card {
  transition:
    transform 0.26s ease,
    box-shadow 0.26s ease,
    border-color 0.26s ease,
    background-color 0.26s ease;
}

@media (hover: hover) {
  .interactive-card:hover,
  .interactive-card:focus-within {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(39, 54, 86, 0.12);
    border-color: rgba(108, 134, 188, 0.22);
    background: rgba(255, 253, 249, 0.58);
  }

  .interactive-card:hover .card-icon,
  .interactive-card:focus-within .card-icon {
    transform: translateY(-2px) scale(1.04);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.62),
      0 14px 30px rgba(39, 54, 86, 0.14);
    border-color: rgba(108, 134, 188, 0.28);
  }

  .browser-frame.interactive-card:hover,
  .browser-frame.interactive-card:focus-within {
    transform:
      perspective(1200px)
      rotateX(var(--stage-tilt-x, 0deg))
      rotateY(var(--stage-tilt-y, 0deg))
      translate3d(var(--stage-shift-x, 0px), var(--stage-shift-y, 0px), 0);
    box-shadow: 0 34px 66px rgba(14, 20, 32, 0.28);
    background: rgba(14, 20, 32, 0.92);
    border-color: rgba(255, 255, 255, 0.08);
  }

  .hero-logo-lockup:hover,
  .hero-logo-lockup:focus-within {
    box-shadow:
      0 28px 58px rgba(15, 24, 43, 0.24),
      -14px 14px 28px rgba(96, 126, 208, 0.1),
      14px 18px 32px rgba(84, 190, 228, 0.11),
      0 0 0 1px rgba(124, 159, 225, 0.1),
      0 0 30px rgba(255, 173, 120, 0.08);
  }

  .hero-logo-lockup:hover img,
  .hero-logo-lockup:focus-within img {
    transform: translate3d(0, -3px, 0) rotate(-4deg);
    filter: drop-shadow(0 26px 40px rgba(49, 91, 176, 0.28));
  }

  .hero-logo-lockup:hover .hero-logo-copy,
  .hero-logo-lockup:focus-within .hero-logo-copy {
    transform: translate3d(0, -2px, 0);
  }

  .site-nav a:hover .nav-sub::before,
  .site-nav a:focus-visible .nav-sub::before {
    background: rgba(77, 97, 122, 0.42);
  }
}

@media (max-width: 1480px) {
  .stage-scene,
  .browser-body {
    grid-template-columns: 1fr;
  }

  .sidepanel-frame {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
  }
}

@media (max-width: 1260px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .stage-scene,
  .architecture-layout,
  .browser-body {
    grid-template-columns: 1fr;
  }

  .page-grid,
  .chapter-grid,
  .reserve-grid,
  .demo-grid,
  .evidence-grid,
  .hero-copy-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sidepanel-frame {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
  }
}

@media (max-width: 920px) {
  .page-shell {
    width: min(100vw - 1.2rem, 100%);
    padding-top: 0.8rem;
  }

  .site-header {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.4rem;
  }

  .js .site-nav {
    display: none;
  }

  .js.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    text-align: center;
  }

  .hero-intro {
    grid-template-columns: 1fr;
  }

  .hero-logo-lockup {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
    width: 100%;
    margin-inline-start: 0;
    margin-bottom: 1rem;
  }

  .hero-metrics,
  .page-grid,
  .chapter-grid,
  .reserve-grid,
  .demo-grid,
  .evidence-grid,
  .hero-copy-grid,
  .final-cta {
    grid-template-columns: 1fr;
  }

  .hero-metrics,
  .hero-copy-grid {
    display: grid;
  }

  .final-cta,
  .site-footer-inner,
  .footer-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .final-actions,
  .hero-actions {
    width: 100%;
  }

  .button {
    width: 100%;
  }
}

@media (max-width: 620px) {
  :root {
    --content-width: min(100vw - 0.8rem, 100%);
  }

  .lead-sentence {
    font-size: clamp(2rem, 11vw, 3.2rem);
  }

  .brand-lockup small,
  .nav-sub {
    display: none;
  }

  .hero-logo-lockup {
    width: 100%;
    align-items: flex-start;
  }

  .hero-logo-lockup img {
    width: 4.2rem;
    height: 4.2rem;
  }

  .browser-address {
    font-size: 0.72rem;
  }

  .terminal-toolbar,
  .browser-bar,
  .demo-shell-top {
    flex-wrap: wrap;
  }

  .copy-button {
    margin-left: 0;
  }

  .terminal-tabs {
    width: 100%;
  }

  .demo-meta-row,
  .shot-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .browser-frame,
  .interactive-card,
  .hero-logo-lockup,
  .hero-logo-lockup::after,
  .brand-wordmark-accent,
  .button,
  .copy-button,
  .footer-link,
  .site-nav a,
  .nav-toggle span,
  .map-node,
  .section-animate,
  .scroll-progress span {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }

  .js .section-animate {
    opacity: 1 !important;
  }
}