:root {
  --bg: #050607;
  --bg-soft: #090b0e;
  --surface: #0f1318;
  --surface-soft: #12171d;
  --line: #232a33;
  --line-strong: #2f3844;
  --text: #ecf1f6;
  --muted: #9aa5b3;
  --accent: #5f8fcb;
  --accent-strong: #4d78ad;
  --ok: #74c1a2;
  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 100% -10%, rgba(95, 143, 203, 0.14), transparent 42%),
    radial-gradient(circle at -6% 106%, rgba(96, 105, 120, 0.16), transparent 44%),
    var(--bg);
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  pointer-events: none;
  z-index: 0;
  filter: blur(54px);
}

.ambient-a {
  width: 460px;
  height: 460px;
  right: -180px;
  top: -180px;
  background: rgba(95, 143, 203, 0.18);
  animation: drift-a 26s ease-in-out infinite alternate;
}

.ambient-b {
  width: 420px;
  height: 420px;
  left: -160px;
  bottom: -190px;
  background: rgba(110, 128, 148, 0.16);
  animation: drift-b 28s ease-in-out infinite alternate;
}

.frame {
  position: relative;
  z-index: 1;
  width: min(1160px, 100% - 34px);
  margin: 0 auto;
  padding: 24px 0 44px;
  display: grid;
  gap: 18px;
}

.mast,
.hero,
.ribbon,
.section,
.foot {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(17, 22, 28, 0.96), rgba(14, 18, 23, 0.96));
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.mast {
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand-glyph {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 0.94rem;
  font-weight: 700;
  color: #eef5ff;
  background: linear-gradient(135deg, #638fca, #4f75a6);
  border: 1px solid #7292b9;
}

.brand-name {
  font-size: 1.01rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-links a,
.foot a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.nav-links a:hover,
.foot a:hover {
  color: var(--text);
}

.btn {
  border: 1px solid transparent;
  border-radius: 11px;
  padding: 10px 14px;
  font: inherit;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: transform 170ms var(--ease), border-color 170ms var(--ease), box-shadow 170ms var(--ease), background 170ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn-solid {
  color: #f7fbff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: #6e8fb4;
}

.btn-outline {
  color: var(--text);
  background: rgba(15, 19, 24, 0.64);
  border-color: var(--line-strong);
}

.btn-tight {
  padding: 8px 11px;
  font-size: 0.8rem;
}

.hero {
  padding: clamp(20px, 4vw, 34px);
  display: grid;
  grid-template-columns: minmax(0, 1.07fr) minmax(310px, 0.93fr);
  gap: 16px;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  margin-top: 12px;
  font-size: clamp(1.9rem, 4vw, 3rem);
  max-width: 16ch;
}

.hero-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.6;
  max-width: 60ch;
}

.cta-row {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.model-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 12px;
  background: linear-gradient(180deg, rgba(18, 24, 32, 0.95), rgba(14, 18, 24, 0.96));
  display: grid;
  gap: 10px;
  animation: float-card 8s ease-in-out infinite;
}

.model-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.card-kicker {
  margin: 0;
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.model-pill {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 0.7rem;
  color: #c8d9ef;
}

.model-shell {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
  background: linear-gradient(180deg, rgba(14, 19, 26, 0.98), rgba(12, 16, 21, 0.98));
  display: grid;
  gap: 9px;
}

.model-topbar {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  background: rgba(16, 21, 28, 0.86);
}

.model-brand-wrap {
  display: grid;
  gap: 2px;
}

.model-brand {
  font-size: 0.84rem;
}

.model-domain {
  color: var(--muted);
  font-size: 0.68rem;
}

.model-lock {
  border: 1px solid rgba(116, 193, 162, 0.5);
  color: var(--ok);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.67rem;
}

.model-note {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px 8px;
  color: var(--muted);
  font-size: 0.71rem;
  background: rgba(15, 20, 26, 0.76);
}

.model-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: rgba(12, 17, 23, 0.8);
}

.model-tab {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 8px 4px;
  cursor: pointer;
}

.model-tab.is-active {
  background: rgba(95, 143, 203, 0.22);
  color: #f2f7ff;
}

.model-panel {
  display: none;
  gap: 8px;
}

.model-panel.is-active {
  display: grid;
}

.model-field {
  display: grid;
  gap: 5px;
}

.model-field > span {
  font-size: 0.69rem;
  color: var(--muted);
}

.model-field select,
.model-field input {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #11161d;
  color: var(--text);
  padding: 7px 8px;
  font: inherit;
  font-size: 0.76rem;
}

.model-field.small {
  max-width: 150px;
}

.model-list {
  display: grid;
  gap: 6px;
}

.model-item {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px 8px;
  background: rgba(15, 21, 28, 0.84);
  display: grid;
  gap: 3px;
}

.model-item strong {
  font-size: 0.76rem;
}

.model-item span {
  color: var(--muted);
  font-size: 0.7rem;
  word-break: break-all;
}

.model-meta-row {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px 8px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
}

.model-meta-row strong {
  color: var(--text);
}

.model-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px 8px;
  color: var(--muted);
  font-size: 0.72rem;
}

.model-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.model-toggle-ui {
  width: 35px;
  height: 20px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: #181f29;
  position: relative;
  transition: background 150ms var(--ease), border-color 150ms var(--ease);
}

.model-toggle-ui::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 1px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #c7d3e2;
  transition: transform 150ms var(--ease), background 150ms var(--ease);
}

.model-toggle input:checked + .model-toggle-ui {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: #7ea4d2;
}

.model-toggle input:checked + .model-toggle-ui::after {
  transform: translateX(14px);
  background: #fff;
}

.model-inline {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px;
}

.model-inline input {
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #11161d;
  color: var(--text);
  padding: 7px 8px;
  font: inherit;
  font-size: 0.74rem;
}

.ribbon {
  padding: 10px 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.ribbon p {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 9px;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
  background: rgba(16, 21, 27, 0.8);
}

.section {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.section-head {
  display: grid;
  gap: 7px;
}

h2 {
  font-size: clamp(1.28rem, 2.8vw, 2.1rem);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.tile,
.panel,
.update-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 13px;
  background: linear-gradient(180deg, rgba(18, 24, 31, 0.94), rgba(14, 18, 24, 0.95));
  transition: transform 220ms var(--ease), border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.tile:hover,
.panel:hover,
.update-card:hover {
  transform: translateY(-3px);
  border-color: #3c4857;
  box-shadow: 0 14px 24px rgba(0, 0, 0, 0.34);
}

.tile h3,
.panel h3,
.update-card h3 {
  font-size: 1.06rem;
}

.tile p,
.panel li,
.section-note,
.muted-line,
.install-list li {
  color: var(--muted);
  line-height: 1.52;
}

.tile p {
  margin: 8px 0 0;
}

.columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.panel ul,
.install-list {
  margin: 9px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
}

.section-note {
  margin: 0;
}

.update-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.panel-label {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}

.seed-code {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #11161d;
  color: var(--text);
  font: inherit;
  padding: 9px 10px;
  min-height: 84px;
  resize: vertical;
}

.seed-code:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.btn.is-disabled {
  opacity: 0.55;
  pointer-events: none;
}

code {
  color: #bdd5f6;
}

.foot {
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 0.86rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes drift-a {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-30px, 16px, 0) scale(1.06); }
}

@keyframes drift-b {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(26px, -18px, 0) scale(1.05); }
}

@keyframes float-card {
  0%,
  100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .ribbon {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .frame {
    width: min(1160px, 100% - 20px);
    padding-top: 14px;
  }

  .mast {
    flex-wrap: wrap;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
  }

  .feature-grid,
  .columns,
  .update-grid,
  .ribbon {
    grid-template-columns: 1fr;
  }

  .mast,
  .hero,
  .ribbon,
  .section,
  .foot {
    border-radius: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ambient-a,
  .ambient-b,
  .model-card,
  .reveal,
  .tile,
  .panel,
  .update-card {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}