:root {
  --vellum: #F4ECD7;
  --vellum-soft: #EFE5C9;
  --ink: #0A1628;
  --ink-soft: #3F4C5E;
  --ink-faint: #97A0AC;
  --blueprint: #1E5FA8;
  --blueprint-hover: #174E8B;
  --copper: #B87333;
  --rule: #D6CDB4;
  --border: #D6CDB4;
  --paper: #FFFDF7;
  --code-bg: #0A1628;
  --code-text: #E5DFCB;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  background: var(--vellum);
  color: var(--ink);
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  line-height: 1.5;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.page-wrap { max-width: 1040px; margin: 0 auto; padding: 28px 40px; }

/* NAV */
.nav { display: flex; justify-content: space-between; align-items: center; padding-bottom: 100px; }
.nav-mark {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Source Serif 4', Georgia, serif; font-size: 18px; font-weight: 500;
  color: var(--ink); text-decoration: none;
}
.nav-mark .k { width: 22px; height: 22px; color: var(--ink); }
.nav-mark .cad { color: var(--blueprint); }
.nav-links { display: flex; gap: 24px; font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 12px; color: var(--ink-soft); letter-spacing: 0.04em; }
.nav-links a { color: var(--ink-soft); text-decoration: none; }
.nav-links a:hover { color: var(--blueprint); }
.nav-links a.app-link { color: var(--blueprint); font-weight: 500; }

/* HERO */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: 34px;
  align-items: center;
  padding: 0 0 44px;
}
.hero-copy { min-width: 0; }
.proof-line {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  color: var(--blueprint);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.headline {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: clamp(58px, 7.4vw, 92px); font-weight: 500; letter-spacing: 0;
  line-height: 0.94; margin: 0 0 24px;
  text-wrap: balance;
}
.headline .accent { color: var(--blueprint); font-style: italic; }
.subhead { font-size: 19px; color: var(--ink-soft); max-width: 520px; margin: 0 0 18px; line-height: 1.5; }

.modes {
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 12px;
  color: var(--ink-faint); letter-spacing: 0.06em;
  margin: 0 0 26px; display: flex; flex-wrap: wrap; gap: 10px 14px;
}
.modes .mode { color: var(--ink-soft); }
.modes .sep { opacity: 0.5; }

.ctas-primary { display: flex; gap: 12px; justify-content: flex-start; flex-wrap: wrap; margin-bottom: 18px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px; border-radius: 8px;
  font-size: 15px; font-weight: 500; font-family: inherit;
  text-decoration: none; border: 1px solid; cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn-primary { background: var(--blueprint); color: #FFF; border-color: var(--blueprint); font-size: 16px; padding: 14px 24px; }
.btn-primary:hover { background: var(--blueprint-hover); border-color: var(--blueprint-hover); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-secondary:hover { border-color: var(--ink); }

.install-stack { display: grid; gap: 8px; max-width: 620px; }
.install {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--code-bg); color: var(--code-text);
  padding: 10px 16px; border-radius: 8px;
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 12px;
  border: none; cursor: pointer;
  text-align: left;
}
.install:hover { background: #0F1E33; }
.install-secondary { background: #12233A; }
.install-secondary:hover { background: #162B47; }
.install-link { text-decoration: none; color: var(--code-text); }
.install-link .install-command { color: var(--code-text); font-weight: 500; }
.install-link .copy { color: var(--copper); font-size: 13px; padding-left: 8px; border-left: 1px solid #1F2A3D; }
.install-command { overflow-wrap: anywhere; line-height: 1.45; }
.install .prompt { color: var(--copper); }
.install .copy { color: var(--ink-faint); font-size: 11px; padding-left: 8px; border-left: 1px solid #1F2A3D; }
.install-note { max-width: 620px; margin: 8px 0 0; color: var(--ink-faint); font-size: 12px; line-height: 1.5; }

/* DEMO */
.hero-proof { min-width: 0; }
.demo-frame {
  aspect-ratio: 16/9;
  background: linear-gradient(180deg, #06101F 0%, #0A1628 100%);
  border-radius: 10px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 30px 80px -30px rgba(10,22,40,0.30);
  margin-top: 10px;
  border: 1px solid rgba(10, 22, 40, 0.12);
}
.demo-frame video,
.demo-poster-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.demo-frame video { object-fit: contain; }
.demo-poster-art {
  z-index: 1;
  background: var(--code-bg);
  transition: opacity 0.25s ease;
}
.demo-poster-art.is-hidden {
  opacity: 0;
  pointer-events: none;
}
.demo-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 11px;
  color: var(--ink-soft); letter-spacing: 0.04em;
  gap: 16px;
}
.demo-meta .dot { display: inline-block; width: 6px; height: 6px; background: var(--blueprint); border-radius: 50%; margin-right: 8px; vertical-align: middle; }
.artifact-label { color: var(--blueprint); text-transform: uppercase; }

/* CAPABILITIES */
.capabilities {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--rule);
  margin: 0 0 92px;
}
.capability {
  min-width: 0;
  padding: 16px 18px;
  border-right: 1px solid var(--rule);
}
.capability:last-child { border-right: 0; }
.capability-name {
  display: block;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  color: var(--blueprint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.capability-copy {
  display: block;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.45;
}

/* PROMPT HANDOFF */
.prompt-handoff {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(320px, 1fr);
  gap: 28px;
  align-items: end;
  margin: 0 0 88px;
}
.section-kicker {
  display: block;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  color: var(--blueprint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.prompt-handoff-headline {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: clamp(32px, 4.5vw, 54px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  margin: 0;
}
.prompt-handoff-form {
  display: grid;
  gap: 12px;
}
.prompt-handoff-form textarea {
  width: 100%;
  min-height: 108px;
  resize: vertical;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  padding: 15px 16px;
  font: inherit;
  font-size: 15px;
  line-height: 1.45;
}
.prompt-handoff-form textarea:focus {
  outline: none;
  border-color: var(--blueprint);
}
.prompt-handoff-form .btn {
  justify-content: center;
}

/* CODE */
.code-block { margin: 0 0 100px; max-width: 720px; margin-left: auto; margin-right: auto; }
.code-label {
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 11px; color: var(--ink-soft);
  letter-spacing: 0.06em; margin-bottom: 14px; text-transform: uppercase;
  display: flex; align-items: center; gap: 10px;
}
.code-label::before { content: ''; width: 14px; height: 1px; background: var(--rule); }
.code {
  background: var(--code-bg); color: var(--code-text);
  padding: 26px 32px; border-radius: 10px;
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 13px; line-height: 1.7;
  white-space: pre-wrap; margin: 0; overflow-x: auto;
}
.code .kw  { color: #B5763B; }
.code .fn  { color: #6FA8D6; }
.code .num { color: #C2D6EE; }
.code .com { color: #5C6677; }
.code .str { color: #D6BC7A; }

/* FOOTER */
.footer {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--rule); padding: 28px 0; margin-top: 60px;
  font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 11px;
  color: var(--ink-soft); letter-spacing: 0.04em;
}
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--blueprint); }

/* SIGNUP */
.signup {
  margin: 80px auto 80px;
  padding: 32px 28px;
  max-width: 520px;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-align: center;
}
.signup-headline {
  font-family: 'Source Serif 4', serif;
  font-size: 28px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--ink);
}
.signup-sub {
  margin: 0 0 22px;
  color: var(--ink-soft);
  font-size: 14px;
}
.signup-form {
  display: flex;
  gap: 8px;
  margin: 0 auto 14px;
  max-width: 440px;
}
.signup-form input[type="email"] {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
  font-size: 14px;
  background: var(--paper);
  color: var(--ink);
}
.signup-form input[type="email"]:focus {
  outline: none;
  border-color: var(--blueprint);
}
.signup-form button {
  white-space: nowrap;
}
.signup-status {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--ink-soft);
  min-height: 1.2em;
}
.signup-status.error {
  color: #c0392b;
}
.signup-privacy {
  margin: 0;
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  line-height: 1.5;
}
.signup-privacy a {
  color: var(--ink-soft);
  text-decoration: underline;
  text-decoration-color: var(--border);
}
.signup-privacy a:hover { color: var(--blueprint); }

/* MOBILE */
@media (max-width: 768px) {
  .page-wrap { padding: 20px 20px; }
  .nav { padding-bottom: 60px; flex-wrap: wrap; gap: 12px; }
  .nav-links { font-size: 11px; gap: 14px; }
  .hero { grid-template-columns: 1fr; gap: 32px; padding-bottom: 40px; }
  .headline { font-size: clamp(44px, 15vw, 56px); line-height: 0.98; max-width: 100%; overflow-wrap: anywhere; }
  .subhead { font-size: 17px; }
  .modes { gap: 8px 10px; }
  .install-stack { max-width: none; }
  .install { font-size: 12px; padding: 10px 12px; overflow: hidden; }
  .install span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
  .demo-meta { align-items: flex-start; flex-direction: column; gap: 6px; }
  .capabilities { grid-template-columns: 1fr; margin-bottom: 60px; }
  .capability { border-right: 0; border-bottom: 1px solid var(--rule); }
  .capability:last-child { border-bottom: 0; }
  .prompt-handoff { grid-template-columns: 1fr; margin-bottom: 60px; }
  .code { font-size: 12px; padding: 20px; }
  .footer { flex-direction: column; gap: 12px; }
  .signup { margin: 40px 0 60px; padding: 24px 18px; }
  .signup-headline { font-size: 22px; }
  .signup-form { flex-direction: column; }
}

/* ---------- Gallery ---------- */
.gallery {
  margin: 4rem auto 0;
  max-width: 1100px;
  padding: 0 1.5rem;
}
.gallery-header { text-align: center; margin-bottom: 1.5rem; }
.gallery-headline { font-size: 1.75rem; margin: 0 0 0.25rem; }
.gallery-sub { opacity: 0.7; margin: 0 0 0.75rem; }
.gallery-submit { font-size: 0.9rem; opacity: 0.7; }
.gallery-submit:hover { opacity: 1; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
@media (max-width: 1023px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 639px)  { .gallery-grid { grid-template-columns: 1fr; } }

.gallery-tile {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  background: #1a1a1a;
}
.gallery-tile .tile-viewer,
.gallery-tile .tile-poster {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  background: #1a1a1a;
}
.gallery-tile .tile-poster {
  object-fit: cover;
  display: block;
}
.gallery-tile .tile-viewer {
  --poster-color: transparent;
  pointer-events: none;
}
.gallery-tile .tile-viewer::part(default-progress-bar) { display: none; }

.tile-chip {
  position: absolute;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 0.7rem;
  padding: 4px 8px;
  border-radius: 4px;
  font-family: ui-monospace, monospace;
  display: flex; gap: 6px; align-items: center;
}
.tile-chip-bl { bottom: 8px; left: 8px; }
.tile-chip-br { bottom: 8px; right: 8px; }
.tile-chip .version { opacity: 0.7; }
.tile-chip .relative-date { opacity: 0.6; }
.tile-featured {
  position: absolute; top: 8px; left: 8px;
  background: #fff; color: #111;
  font-size: 0.65rem; font-weight: 600;
  padding: 3px 7px; border-radius: 3px;
}
.tile-studio-link {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 1;
  max-width: calc(100% - 16px);
  white-space: nowrap;
}

/* ---------- Lightbox ---------- */
#gallery-lightbox {
  border: none;
  background: transparent;
  padding: 0;
  max-width: 880px;
  width: 90vw;
  max-height: 92vh;
}
#gallery-lightbox::backdrop { background: rgba(0, 0, 0, 0.75); }
.lightbox-inner {
  background: #111;
  color: #fff;
  border-radius: 8px;
  overflow: hidden;
  padding: 0;
  position: relative;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
}
.lightbox-close {
  position: absolute; top: 12px; right: 12px;
  background: rgba(0, 0, 0, 0.6); color: #fff;
  border: none; border-radius: 50%;
  width: 32px; height: 32px; font-size: 1.1rem;
  cursor: pointer;
  z-index: 1;
}
.lightbox-stage {
  width: 100%;
  height: min(58vh, 560px);
  min-height: 320px;
  background: #111;
}
.lightbox-viewer {
  display: block;
  width: 100%;
  height: 100%;
  background: #111;
}
.lightbox-body {
  padding: 1.5rem;
  overflow-y: auto;
}
.lightbox-body h3 { margin: 0 0 0.5rem; font-size: 1.25rem; }
.lightbox-meta { opacity: 0.6; font-size: 0.85rem; margin: 0 0 1rem; }
.lightbox-prompt-label {
  color: var(--blue);
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 0.45rem;
  text-transform: uppercase;
}
.lightbox-prompt {
  background: rgba(255, 255, 255, 0.05);
  padding: 0.85rem 1rem;
  border-radius: 4px;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  margin: 0 0 1.25rem;
}
.lightbox-ctas {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem 1rem;
  align-items: center;
}
.lightbox-subscribe { display: flex; gap: 0.5rem; }
.lightbox-subscribe input[type=email] {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-radius: 4px;
}
.lightbox-secondary { display: flex; flex-direction: column; gap: 0.4rem; }
.lightbox-secondary a { font-size: 0.85rem; color: #fff; opacity: 0.8; }
.lightbox-secondary a:hover { opacity: 1; }
.tile-studio-link,
.lightbox-studio-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
  font-size: 0.85rem;
}
.tile-studio-link:hover,
.lightbox-studio-link:hover {
  background: rgba(255, 255, 255, 0.16);
}
.gallery-privacy-note {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  opacity: 0.72;
}
.lightbox-footer { margin-top: 1rem; opacity: 0.6; font-size: 0.85rem; }