:root {
  --bg: #0b0d12;
  --surface: #11151e;
  --surface-elev: #171c27;
  --text: #f5ebdd;
  --text-muted: #b7aea4;
  --accent: #e8d4be;
  --border: rgba(255, 255, 255, 0.08);
  --radius-2xl: 34px;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --shadow-soft: 0 20px 56px rgba(0, 0, 0, 0.34);
  --shadow-elev: 0 26px 62px rgba(0, 0, 0, 0.42);
  --container: min(1240px, 94vw);
  --ease-premium: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Manrope", "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(1000px 500px at 78% -12%, rgba(232, 212, 190, 0.07), transparent 72%),
    radial-gradient(760px 420px at 8% 2%, rgba(232, 212, 190, 0.08), transparent 76%),
    var(--bg);
  overflow-x: hidden;
}

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

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.028) 1px, transparent 0);
  background-size: 30px 30px;
  opacity: 0.16;
  pointer-events: none;
}

.bg-halo {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px 360px at 16% 0%, rgba(232, 212, 190, 0.1), transparent 75%),
    radial-gradient(560px 360px at 92% 12%, rgba(232, 212, 190, 0.08), transparent 77%),
    radial-gradient(780px 420px at 50% 100%, rgba(232, 212, 190, 0.05), transparent 80%);
  pointer-events: none;
}

.nav-shell {
  width: var(--container);
  margin: 16px auto 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: linear-gradient(125deg, rgba(17, 21, 30, 0.9), rgba(23, 28, 39, 0.78));
  backdrop-filter: blur(16px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  position: sticky;
  top: 10px;
  z-index: 30;
  transition: box-shadow 0.4s var(--ease-premium), border-color 0.4s var(--ease-premium);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  border: 1px solid var(--border);
  background:
    radial-gradient(80% 80% at 30% 20%, rgba(232, 212, 190, 0.22), transparent 74%),
    var(--surface-elev);
  display: grid;
  place-items: center;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

.brand-mark img {
  width: 86%;
  height: 86%;
  object-fit: contain;
  display: block;
}

.brand-name {
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.012em;
}

.nav-links {
  justify-self: center;
  display: inline-flex;
  gap: 28px;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.nav-links a {
  position: relative;
  transition: color 0.25s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease-premium);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-actions {
  display: inline-flex;
  gap: 10px;
  align-items: center;
}

.lang-switch {
  display: inline-flex;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  background: rgba(255, 255, 255, 0.02);
}

.lang-switch button {
  border: 0;
  color: var(--text-muted);
  background: transparent;
  border-radius: 999px;
  padding: 7px 12px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.28s ease, background-color 0.28s ease;
}

.lang-switch button.is-active {
  color: #1f1a14;
  background: var(--accent);
}

.page {
  width: var(--container);
  margin: 0 auto;
  padding: 34px 0 104px;
  display: grid;
  gap: 34px;
}

.hero,
.panel,
.trust-ribbon,
.final-cta {
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  background:
    linear-gradient(145deg, rgba(23, 28, 39, 0.9), rgba(17, 21, 30, 0.96)),
    var(--surface);
  box-shadow: var(--shadow-soft);
}

.hero {
  min-height: min(88vh, 940px);
  padding: clamp(26px, 5.7vw, 62px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(22px, 4vw, 58px);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(560px 300px at 70% 20%, rgba(232, 212, 190, 0.11), transparent 78%),
    radial-gradient(400px 260px at 6% 90%, rgba(232, 212, 190, 0.09), transparent 78%);
  pointer-events: none;
}

.kicker {
  margin: 0 0 14px;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 4.92rem);
  line-height: 0.98;
  letter-spacing: -0.028em;
  max-width: 12.8ch;
}

.hero-text {
  margin: 18px 0 0;
  color: var(--text-muted);
  font-size: clamp(1rem, 1.3vw, 1.14rem);
  max-width: 56ch;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  height: 44px;
  padding: 0 20px;
  border: 1px solid var(--border);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 700;
  transition:
    transform 0.3s var(--ease-premium),
    border-color 0.3s var(--ease-premium),
    background-color 0.3s var(--ease-premium),
    box-shadow 0.3s var(--ease-premium);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #1d1813;
  border-color: transparent;
  background: var(--accent);
  box-shadow: 0 12px 24px rgba(232, 212, 190, 0.22);
}

.btn-primary:hover {
  background: #f3e2cf;
  box-shadow: 0 14px 28px rgba(232, 212, 190, 0.28);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.01);
}

.btn-ghost:hover {
  border-color: rgba(232, 212, 190, 0.4);
  background: rgba(255, 255, 255, 0.03);
}

.hero-scene {
  position: relative;
  min-height: 530px;
  perspective: 1300px;
}

.scene-aura {
  position: absolute;
  inset: 14% 10% 8%;
  border-radius: 30px;
  background:
    radial-gradient(50% 50% at 42% 35%, rgba(232, 212, 190, 0.18), transparent 76%),
    radial-gradient(70% 60% at 60% 60%, rgba(232, 212, 190, 0.12), transparent 85%);
  filter: blur(6px);
}

.layer-card {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(165deg, rgba(32, 38, 51, 0.84), rgba(18, 23, 32, 0.92)),
    var(--surface-elev);
  box-shadow: var(--shadow-elev);
  padding: 14px;
  will-change: transform;
  transition: transform 0.35s var(--ease-premium), border-color 0.35s ease;
}

.layer-card:hover {
  border-color: rgba(232, 212, 190, 0.28);
}

.scene-search {
  width: 44%;
  left: 5%;
  top: 2%;
}

.scene-entry {
  width: 68%;
  left: 22%;
  top: 16%;
}

.scene-policy {
  width: 32%;
  right: 0;
  top: 58%;
}

.scene-seed {
  width: 54%;
  left: 2%;
  top: 65%;
}

.scene-history {
  width: 38%;
  right: 8%;
  top: 4%;
}

.mini-title {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mini-line {
  margin: 4px 0 0;
  font-size: 0.9rem;
}

.mini-line.is-soft {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.mini-code,
.mono {
  font-family: "JetBrains Mono", "Cascadia Code", "Consolas", monospace;
}

.mini-code {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.drift-a {
  animation: driftA 9s ease-in-out infinite;
}

.drift-b {
  animation: driftB 12s ease-in-out infinite;
}

.drift-c {
  animation: driftC 8s ease-in-out infinite;
}

.drift-d {
  animation: driftD 10s ease-in-out infinite;
}

.drift-e {
  animation: driftE 11s ease-in-out infinite;
}

.trust-ribbon {
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  overflow: hidden;
}

.trust-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 13px 15px;
  background: rgba(23, 28, 39, 0.82);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  animation: chipSlide 0.9s var(--ease-premium) both;
}

.trust-chip:nth-child(2) {
  animation-delay: 0.12s;
}

.trust-chip:nth-child(3) {
  animation-delay: 0.24s;
}

.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(232, 212, 190, 0.16);
}

.panel {
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(520px 240px at 84% 8%, rgba(232, 212, 190, 0.06), transparent 80%);
  pointer-events: none;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.62rem, 3.2vw, 2.56rem);
  letter-spacing: -0.022em;
  max-width: 19ch;
}

.bento-grid {
  margin-top: 18px;
  display: grid;
  gap: 13px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 1fr;
}

.bento-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(27, 33, 46, 0.9), rgba(18, 23, 32, 0.95));
  padding: 18px;
  transition:
    transform 0.35s var(--ease-premium),
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.bento-card:hover {
  transform: translateY(-5px);
  border-color: rgba(232, 212, 190, 0.38);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.34);
}

.bento-card h3 {
  margin: 0 0 8px;
  font-size: 1.04rem;
}

.bento-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.bento-large {
  grid-column: span 2;
  grid-row: span 2;
}

.mini-ui {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.86rem;
  background: rgba(255, 255, 255, 0.01);
}

.mini-ui-tight {
  min-height: 72px;
  align-content: start;
}

.tabs {
  margin-top: 14px;
  display: inline-flex;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.01);
}

.tabs button {
  border: 0;
  color: var(--text-muted);
  background: transparent;
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.28s ease, background-color 0.28s ease, transform 0.28s ease;
}

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

.tabs button.is-active {
  color: #1f1a14;
  background: var(--accent);
}

.tab-panels {
  margin-top: 14px;
}

.entry-card {
  display: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(27, 33, 46, 0.9), rgba(18, 23, 32, 0.95));
  padding: 18px;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.entry-card.is-active {
  display: grid;
  animation: fadeLift 0.34s var(--ease-premium);
}

.entry-label {
  color: var(--accent);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.entry-card p {
  margin: 7px 0 0;
}

.history-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: var(--text-muted);
}

.split {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.feature-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(28, 34, 47, 0.9), rgba(18, 23, 32, 0.94));
  padding: 18px;
  transition: border-color 0.3s ease, transform 0.3s var(--ease-premium);
}

.feature-panel:hover {
  border-color: rgba(232, 212, 190, 0.34);
  transform: translateY(-3px);
}

.feature-panel h3 {
  margin: 0 0 8px;
}

.feature-panel p {
  margin: 0;
  color: var(--text-muted);
}

.device-flow {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.device-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(29, 35, 48, 0.92), rgba(18, 23, 32, 0.95));
  padding: 16px;
  transition: transform 0.35s var(--ease-premium), border-color 0.35s ease;
}

.device-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 212, 190, 0.35);
}

.device-title {
  margin: 0 0 8px;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

.device-text {
  margin: 0;
  color: var(--text-muted);
}

.final-cta {
  padding: 34px;
  text-align: center;
  background:
    radial-gradient(500px 220px at 50% 10%, rgba(232, 212, 190, 0.12), transparent 78%),
    linear-gradient(160deg, rgba(23, 28, 39, 0.95), rgba(16, 20, 28, 0.98));
}

.final-cta h2 {
  margin: 0;
  font-size: clamp(1.72rem, 3.5vw, 2.9rem);
}

.final-cta p {
  margin: 10px auto 0;
  max-width: 64ch;
  color: var(--text-muted);
}

.final-cta .btn {
  margin-top: 20px;
}

.footer {
  width: var(--container);
  margin: 0 auto 26px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  text-align: center;
}

.sep {
  margin: 0 8px;
  opacity: 0.6;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.62s var(--ease-premium), transform 0.62s var(--ease-premium);
}

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

@keyframes driftA {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-7px) translateX(4px); }
}

@keyframes driftB {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-10px) translateX(-5px); }
}

@keyframes driftC {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes driftD {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-8px) translateX(4px); }
}

@keyframes driftE {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-6px) translateX(-3px); }
}

@keyframes chipSlide {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeLift {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1120px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-scene {
    min-height: 430px;
  }

  .trust-ribbon,
  .device-flow,
  .split {
    grid-template-columns: 1fr;
  }

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

  .bento-large {
    grid-column: span 2;
    grid-row: span 1;
  }

  .nav-shell {
    border-radius: 18px;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .nav-links,
  .nav-actions {
    justify-self: start;
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  .page {
    gap: 22px;
    padding-top: 22px;
  }

  .hero-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  .bento-grid,
  .entry-card {
    grid-template-columns: 1fr;
  }

  .bento-large {
    grid-column: span 1;
  }

  .scene-search,
  .scene-entry,
  .scene-policy,
  .scene-seed,
  .scene-history {
    position: static;
    width: 100%;
  }

  .hero-scene {
    min-height: auto;
    display: grid;
    gap: 10px;
  }
}