:root {
  --bg: #0b1220;
  --bg-2: #0f1729;
  --surface: #131c30;
  --surface-2: #18223a;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e7ecf5;
  --muted: #9aa6bd;
  --primary: #7c83ff;
  --primary-2: #8b5cf6;
  --accent: #38bdf8;
  --success: #22c55e;
  --radius: 16px;
  --maxw: 1140px;
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.7);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 78% -10%, rgba(124, 131, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at 10% 0%, rgba(139, 92, 246, 0.12), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

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

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.02em;
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11, 18, 32, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 0 0 4px rgba(124, 131, 255, 0.14);
}

.nav-links {
  display: flex;
  gap: 26px;
  margin-left: 12px;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 7px 13px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-btn.is-active {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-sm {
  padding: 9px 16px;
  font-size: 0.9rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: 0 12px 30px -12px rgba(124, 131, 255, 0.7);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -12px rgba(124, 131, 255, 0.8);
}

.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

/* Hero */
.hero {
  padding: 72px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #c7ccff;
  background: rgba(124, 131, 255, 0.12);
  border: 1px solid rgba(124, 131, 255, 0.25);
}

.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  font-weight: 800;
  background: linear-gradient(180deg, #ffffff, #c5cee0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  color: var(--muted);
  font-size: 1.12rem;
  margin: 20px 0 28px;
  max-width: 36em;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-bullets {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 0;
  margin: 30px 0 0;
}

.hero-bullets li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
}

.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: block;
}

/* Strip */
.strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 28px 24px;
}

.strip-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.strip-item strong {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff, var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.strip-item span {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Sections */
.section {
  padding: 84px 0;
}

.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
}

.section-eyebrow {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 10px;
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 44px;
  max-width: 18em;
}

/* Demo section */
.demo-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 28px;
  align-items: start;
}

.demo-player video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: #000;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.demo-note {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 14px 2px 0;
}

.demo-link {
  color: #c7ccff;
  font-weight: 600;
  text-decoration: none;
}

.demo-link:hover {
  text-decoration: underline;
}

.demo-chapters {
  list-style: none;
  counter-reset: chapter;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.demo-chapters .chapter {
  counter-increment: chapter;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--text);
  font: inherit;
  cursor: pointer;
  transition: transform 0.14s ease, border-color 0.14s ease, background 0.14s ease;
}

.demo-chapters .chapter::before {
  content: counter(chapter, decimal-leading-zero);
  font-weight: 800;
  font-size: 0.95rem;
  color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  min-width: 24px;
}

.demo-chapters .chapter:hover {
  transform: translateX(3px);
  border-color: rgba(124, 131, 255, 0.45);
  background: var(--surface-2);
}

.demo-chapters .chapter.is-active {
  border-color: var(--primary);
  background: var(--surface-2);
}

.chapter-text {
  font-weight: 600;
  flex: 1;
}

.chapter-time {
  color: var(--muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }
}

/* Feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 131, 255, 0.4);
  background: var(--surface-2);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: 18px;
  background: rgba(124, 131, 255, 0.12);
  border: 1px solid rgba(124, 131, 255, 0.25);
  position: relative;
}

.card-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, var(--accent), var(--primary-2));
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

.icon-ai::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2l2.4 5.6L20 10l-5.6 2.4L12 18l-2.4-5.6L4 10l5.6-2.4z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2l2.4 5.6L20 10l-5.6 2.4L12 18l-2.4-5.6L4 10l5.6-2.4z'/%3E%3C/svg%3E");
}

.icon-heal::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M20.8 4.6a5 5 0 00-7 0L12 6.3l-1.7-1.7a5 5 0 10-7 7L12 20l8.8-8.7a5 5 0 000-6.7z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M20.8 4.6a5 5 0 00-7 0L12 6.3l-1.7-1.7a5 5 0 10-7 7L12 20l8.8-8.7a5 5 0 000-6.7z'/%3E%3C/svg%3E");
}

.icon-record::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='black'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='black'/%3E%3C/svg%3E");
}

.icon-schedule::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2a10 10 0 100 20 10 10 0 000-20zm1 10V6h-2v8h6v-2z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2a10 10 0 100 20 10 10 0 000-20zm1 10V6h-2v8h6v-2z'/%3E%3C/svg%3E");
}

.icon-lock::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 1a5 5 0 00-5 5v3H6a2 2 0 00-2 2v9a2 2 0 002 2h12a2 2 0 002-2v-9a2 2 0 00-2-2h-1V6a5 5 0 00-5-5zm3 8H9V6a3 3 0 016 0z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 1a5 5 0 00-5 5v3H6a2 2 0 00-2 2v9a2 2 0 002 2h12a2 2 0 002-2v-9a2 2 0 00-2-2h-1V6a5 5 0 00-5-5zm3 8H9V6a3 3 0 016 0z'/%3E%3C/svg%3E");
}

.icon-history::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M13 3a9 9 0 00-9 9H1l4 4 4-4H6a7 7 0 117 7v2a9 9 0 100-18zm-1 5v5l4 2 .8-1.6L13 12V8z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M13 3a9 9 0 00-9 9H1l4 4 4-4H6a7 7 0 117 7v2a9 9 0 100-18zm-1 5v5l4 2 .8-1.6L13 12V8z'/%3E%3C/svg%3E");
}

.icon-api::after {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9.4 16.6L4.8 12l4.6-4.6L8 6l-6 6 6 6zm5.2 0L19.2 12l-4.6-4.6L16 6l6 6-6 6z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9.4 16.6L4.8 12l4.6-4.6L8 6l-6 6 6 6zm5.2 0L19.2 12l-4.6-4.6L16 6l6 6-6 6z'/%3E%3C/svg%3E");
}

.card h3 {
  font-size: 1.14rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  margin: 0;
  font-size: 0.97rem;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
}

.step-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text;
  background-clip: text;
}

.step h3 {
  font-size: 1.12rem;
  margin: 12px 0 8px;
}

.step p {
  color: var(--muted);
  margin: 0;
  font-size: 0.97rem;
}

/* Showcase */
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.showcase-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: block;
}

.showcase-content h2 {
  margin-bottom: 16px;
}

.showcase-content > p {
  color: var(--muted);
  font-size: 1.05rem;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  gap: 14px;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  color: var(--text);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: rgba(34, 197, 94, 0.16);
  border: 1px solid rgba(34, 197, 94, 0.5);
}

.check-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--success);
  border-bottom: 2px solid var(--success);
  transform: rotate(-45deg);
}

/* Tech */
.tech-block {
  text-align: center;
}

.tech-block h2 {
  margin: 0 auto 14px;
}

.tech-copy {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 44em;
  margin: 0 auto 28px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tag {
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.92rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 56px 0 28px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-inner h2 {
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.footer-inner p {
  color: var(--muted);
  margin: 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .grid,
  .steps {
    grid-template-columns: 1fr 1fr;
  }

  .strip-grid {
    grid-template-columns: 1fr 1fr;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 560px) {
  .hero {
    padding: 48px 0 36px;
  }

  .section {
    padding: 60px 0;
  }

  .grid,
  .steps,
  .strip-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto;
    transition: none !important;
  }
}

/* Features & roadmap page */
.nav-links a.is-current {
  color: var(--text);
}

.page-hero {
  padding-top: 96px;
  padding-bottom: 24px;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 10px 0 14px;
}

.page-hero .lead {
  color: var(--muted);
  max-width: 46em;
  font-size: 1.1rem;
  margin: 0 0 22px;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.roadmap-col {
  display: flex;
  flex-direction: column;
}

.rm-badge {
  align-self: flex-start;
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}

.rm-soon {
  background: rgba(56, 189, 248, 0.16);
  border-color: rgba(56, 189, 248, 0.5);
  color: var(--accent);
}

.rm-mid {
  background: rgba(168, 139, 250, 0.16);
  border-color: rgba(168, 139, 250, 0.5);
  color: #c4b5fd;
}

.rm-future {
  background: rgba(148, 163, 184, 0.14);
  border-color: rgba(148, 163, 184, 0.4);
  color: #cbd5e1;
}

.roadmap-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 13px;
}

.roadmap-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text);
}

.roadmap-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.75;
}

@media (max-width: 900px) {
  .roadmap-grid {
    grid-template-columns: 1fr;
  }
}