:root {
  --bg: #0c1117;
  --bg-soft: #101723;
  --paper: #f2f7f9;
  --text: #e8eef4;
  --text-muted: #b2c1cf;
  --primary: #2fd6a7;
  --secondary: #f0b34a;
  --danger: #ff5f6d;
  --line: rgba(255, 255, 255, 0.14);
  --card: linear-gradient(145deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
  --radius: 22px;
  --shadow: 0 20px 44px rgba(0, 0, 0, 0.35);
  --maxw: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 18%, rgba(47, 214, 167, 0.2), transparent 36%),
    radial-gradient(circle at 90% 12%, rgba(240, 179, 74, 0.2), transparent 32%),
    radial-gradient(circle at 40% 85%, rgba(255, 95, 109, 0.18), transparent 36%),
    var(--bg);
  font-family: "Manrope", "Segoe UI", sans-serif;
  line-height: 1.65;
  min-height: 100vh;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(11, 17, 25, 0.78);
}

.topbar-wrap {
  width: min(100% - 2rem, var(--maxw));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--paper);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.logo-link:hover {
  text-decoration: none;
}

.logo-icon {
  width: 38px;
  height: 38px;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  color: var(--paper);
  background: transparent;
  border-radius: 12px;
  padding: 0.45rem 0.6rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--text-muted);
  padding: 0.42rem 0.7rem;
  border-radius: 10px;
  transition: 0.3s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--paper);
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.hero {
  width: min(100% - 2rem, var(--maxw));
  margin: 3.2rem auto 1.2rem;
}

.hero h1 {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-size: clamp(2rem, 3.8vw, 4rem);
  line-height: 1.1;
  margin: 0.3rem 0 1rem;
  letter-spacing: -0.02em;
}

.hero p {
  max-width: 72ch;
  color: var(--text-muted);
  margin: 0;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid rgba(47, 214, 167, 0.45);
  color: #90ffe0;
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section-wrap {
  width: min(100% - 2rem, var(--maxw));
  margin: 2rem auto;
}

.section-title {
  margin: 0 0 1rem;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
}

.section-lead {
  color: var(--text-muted);
  margin-top: 0;
  max-width: 76ch;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem;
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 60%);
  pointer-events: none;
}

.card h3 {
  margin: 0 0 0.65rem;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.card p,
.card li {
  color: var(--text-muted);
}

.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-7 { grid-column: span 7; }
.span-6 { grid-column: span 6; }
.span-5 { grid-column: span 5; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }

.chips {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.chip {
  border-radius: 999px;
  border: 1px solid var(--line);
  color: #deecf7;
  padding: 0.24rem 0.6rem;
  font-size: 0.8rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.stat {
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid var(--line);
  padding: 0.75rem;
}

.stat strong {
  display: block;
  font-size: 1.4rem;
  color: var(--paper);
}

.media-box {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  margin-top: 0.7rem;
}

.cta-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 0.66rem 1rem;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-primary {
  color: #072b22;
  background: linear-gradient(110deg, #2fd6a7, #87f0c6);
  box-shadow: 0 8px 26px rgba(47, 214, 167, 0.35);
}

.btn-secondary {
  color: var(--paper);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.list-clean {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list-clean li {
  padding-left: 1.3rem;
  position: relative;
  margin: 0.35rem 0;
}

.list-clean li::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: linear-gradient(130deg, var(--primary), var(--secondary));
  position: absolute;
  left: 0;
  top: 0.55rem;
}

.timeline {
  border-left: 2px dashed rgba(255, 255, 255, 0.18);
  margin-left: 0.5rem;
  padding-left: 1rem;
}

.timeline article {
  margin: 1.1rem 0;
  position: relative;
}

.timeline article::before {
  content: "";
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: var(--primary);
  position: absolute;
  left: -1.41rem;
  top: 0.35rem;
}

.footer {
  width: min(100% - 2rem, var(--maxw));
  margin: 2.5rem auto 1.2rem;
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1rem;
}

.footer a {
  color: #d5f7eb;
}

.footer small {
  display: block;
  margin-top: 0.8rem;
}

.doc {
  width: min(100% - 2rem, 1024px);
  margin: 2.2rem auto;
}

.doc h1,
.doc h2,
.doc h3 {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.doc .card h2 {
  margin-top: 0;
}

.doc .card {
  margin-bottom: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px) scale(0.99);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 980px) {
  .span-8,
  .span-7,
  .span-6,
  .span-5,
  .span-4,
  .span-3 {
    grid-column: span 12;
  }

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

@media (max-width: 740px) {
  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 62px;
    right: 1rem;
    background: rgba(14, 19, 29, 0.98);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.5rem;
    width: min(92vw, 320px);
    display: none;
    flex-direction: column;
    align-items: stretch;
  }

  .main-nav.open {
    display: flex;
  }
}