:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #16a34a;
  --accent-hover: #15803d;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --max-w: 960px;
  --radius: 10px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Layout ─────────────────────────────── */

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

/* ── Header ─────────────────────────────── */

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0;
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  height: 60px;
  gap: 40px;
}

.logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  flex-shrink: 0;
  letter-spacing: -0.03em;
}

.logo .dot {
  color: var(--accent);
}

.main-nav {
  display: flex;
  gap: 28px;
  flex: 1;
  list-style: none;
}

.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.15s;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* ── Hero ────────────────────────────────── */

.hero {
  padding: 88px 0 80px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: #dcfce7;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text);
}

.hero-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

/* ── Buttons ─────────────────────────────── */

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 13px 30px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
  letter-spacing: -0.01em;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

/* ── Sections ────────────────────────────── */

.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--surface);
}

.section-header {
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 15px;
  color: var(--muted);
  margin-top: 8px;
}

/* ── Category Grid ───────────────────────── */

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.category-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  background: #fff;
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.15s;
}

a.category-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.category-card.coming-soon {
  opacity: 0.45;
  cursor: default;
}

.cat-icon {
  width: 48px;
  height: 48px;
  background: var(--surface);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 24px;
  flex-shrink: 0;
}

.category-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.category-card p {
  font-size: 13px;
  color: var(--muted);
  flex: 1;
  margin-bottom: 16px;
  line-height: 1.5;
}

.card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.coming-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 100px;
}

/* ── Steps ───────────────────────────────── */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  margin-top: 2px;
}

.step-body h3 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.step-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* ── About strip ─────────────────────────── */

.about-strip {
  padding: 56px 0;
  text-align: center;
}

.about-strip h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.about-strip p {
  font-size: 15px;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Footer ──────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--bg);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-logo {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.footer-logo .dot {
  color: var(--accent);
}

.disclosure {
  font-size: 12px;
  color: var(--muted);
  max-width: 520px;
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  gap: 24px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  font-size: 13px;
  color: var(--muted);
  transition: color 0.15s;
}

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

.footer-copy {
  font-size: 12px;
  color: #94a3b8;
}

/* ── Responsive ──────────────────────────── */

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    padding: 12px 24px;
    font-size: 15px;
  }

  .hero { padding: 56px 0 48px; }
  .section { padding: 48px 0; }
  .category-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
}