/* ---------- Design tokens: Lumentu Neural Fusion palette ---------- */
:root {
  --bg: #F7F8FA;
  --bg-alt: #EDF0F4;
  --ink: #041B30;
  --ink-soft: #475569;
  --ink-faint: #8A97A8;
  --line: rgba(0, 35, 68, 0.1);
  --accent: #9D174D;
  --accent-light: #C2255C;
  --accent-2: #002344;
  --accent-dark: #7A1239;
  --silver: #CBD5E1;
  --slate: #475569;
  --dark-bg: #002344;
  --dark-ink: #F4F6F9;
  --dark-line: rgba(203, 213, 225, 0.18);
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 20px 50px -20px rgba(0, 35, 68, 0.3);
  --ff-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --ff-head: 'Inter Tight', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --container: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--ff-head);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }

p { margin: 0 0 16px; color: var(--ink-soft); }

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

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

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: white;
  padding: 12px 20px;
  border-radius: 0 0 8px 0;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: white;
  box-shadow: 0 12px 28px -10px rgba(157, 23, 77, 0.55);
}
.btn-primary:hover { box-shadow: 0 16px 34px -10px rgba(157, 23, 77, 0.65); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-sm { padding: 10px 20px; font-size: 0.88rem; }
.btn-lg { padding: 18px 34px; font-size: 1.05rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-name {
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  gap: 36px;
}
.site-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}
.site-nav a:hover { color: var(--ink); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 18px;
  margin: 0 auto;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 80px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
}
.eyebrow-light { color: var(--silver); }

.hero-sub {
  font-size: 1.1rem;
  max-width: 46ch;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  height: 420px;
}
.orbit-glow {
  position: absolute;
  inset: 30px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, rgba(157,23,77,0.32), transparent 60%),
              radial-gradient(circle at 65% 65%, rgba(0,35,68,0.22), transparent 55%);
  filter: blur(10px);
}
.orbit-ring {
  position: absolute;
  inset: 60px;
  border: 1px dashed rgba(203,213,225,0.9);
  border-radius: 50%;
  animation: spin 26s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.orbit-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 14px 18px;
  animation: float 6s ease-in-out infinite;
}
.card-1 { top: 18%; left: 4%; }
.card-2 { bottom: 12%; right: 2%; animation-delay: -3s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.mini-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  flex-shrink: 0;
}
.mini-text { display: flex; flex-direction: column; line-height: 1.3; }
.mini-text strong { font-size: 0.92rem; font-family: var(--ff-head); }
.mini-text span { font-size: 0.8rem; color: var(--ink-faint); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-sub { font-size: 1.05rem; }
.section-head .section-sub { margin: 0 auto; }

/* ---------- Feature grid ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.feature-card p { margin: 0; font-size: 0.95rem; }

.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  position: relative;
}
.feature-icon::after {
  content: '';
  position: absolute;
  inset: 13px;
  background: #fff;
  border-radius: 5px;
  opacity: 0.9;
}

/* ---------- Coming soon card ---------- */
.coming-soon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  max-width: 480px;
  margin: 0 auto;
  padding: 56px 44px;
  background: #fff;
  border: 1px dashed var(--silver);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.coming-soon-mark { margin-bottom: 12px; }
.coming-soon-card strong {
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
}
.coming-soon-card span { color: var(--ink-soft); font-size: 0.95rem; }
.coming-soon-card a { color: var(--accent); font-weight: 600; }

/* ---------- Approach ---------- */
.approach-list {
  display: grid;
  gap: 8px;
  max-width: 760px;
  margin: 0 auto;
}
.approach-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.approach-row:last-child { border-bottom: none; }
.approach-num {
  font-family: var(--ff-head);
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.approach-row p { margin: 0; }

/* ---------- Contact / dark section ---------- */
.section-dark {
  background: var(--dark-bg);
  color: var(--dark-ink);
}
.contact-inner {
  text-align: center;
  max-width: 640px;
}
.section-dark h2 { color: var(--dark-ink); }
.section-sub-light { color: rgba(244,243,248,0.65); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark-bg);
  color: rgba(244,243,248,0.7);
  border-top: 1px solid var(--dark-line);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-head);
  font-weight: 700;
  color: var(--dark-ink);
}
.footer-copy, .footer-links { font-size: 0.88rem; }
.footer-links a:hover { color: var(--accent-light); }

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { height: 300px; order: -1; }
  .grid-3 { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; text-align: left; }
  .product-icon { margin-bottom: 8px; }
}

@media (max-width: 760px) {
  .site-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 20px 24px;
    gap: 18px;
    display: none;
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .header-actions .btn-sm { display: none; }
  .hero { padding: 56px 0 60px; }
  .section { padding: 64px 0; }
  .approach-row { grid-template-columns: 40px 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}