:root {
  --bg: #0b0d12;
  --bg-alt: #12151c;
  --text: #e8eaed;
  --text-dim: #9aa1ac;
  --accent: #6ee7d0;
  --border: #1f232c;
  --max-width: 1040px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

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

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }

p { color: var(--text-dim); margin: 0 0 16px; }

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

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.95rem;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
}

/* Hero */
.hero {
  padding: 120px 24px 100px;
  text-align: center;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-sub {
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

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

.btn-primary {
  background: var(--accent);
  color: #0b0d12;
}

.btn-primary:hover { opacity: 0.9; }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--accent); }

/* Sections */
.section {
  padding: 80px 24px;
  border-top: 1px solid var(--border);
}

.section-lead {
  max-width: 640px;
  font-size: 1.05rem;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.card-icon {
  color: var(--accent);
  font-size: 1.4rem;
  margin-bottom: 14px;
}

/* App panel */
.app-panel {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  margin-top: 24px;
}

.app-panel-icon {
  width: 64px;
  height: 64px;
  object-fit: contain;
  flex-shrink: 0;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.badge {
  display: inline-block;
  background: rgba(110, 231, 208, 0.12);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-inner p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Fade-in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile nav */
@media (max-width: 640px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .nav-links.open {
    max-height: 260px;
  }

  .nav-links li { padding: 16px 24px; border-top: 1px solid var(--border); }

  .app-panel { flex-direction: column; }
}