/* ===== Theme variables ===== */
:root[data-theme="dark"] {
  --bg: #021C16;
  --card: #06251D;
  --card-alt: #0A2F24;
  --accent: #E5FF53;
  --accent-text: #051A15;
  --text: #FFFFFF;
  --text-secondary: #A0B5AA;
  --text-muted: #5C7268;
  --border: #123028;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg: #F5F8F6;
  --card: #FFFFFF;
  --card-alt: #EAF2EE;
  --accent: #E5FF53;
  --accent-text: #051A15;
  --text: #08241C;
  --text-secondary: #43574E;
  --text-muted: #7C8F87;
  --border: #DCE6E1;
  --shadow: 0 20px 60px rgba(2, 28, 22, 0.08);
}

/* ===== Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.brand img {
  height: 34px;
  width: 34px;
  border-radius: 8px;
  object-fit: cover;
}

nav.links {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav.links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
}

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

.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  font-size: 18px;
}

.theme-toggle:hover { border-color: var(--accent); }

/* ===== Hero ===== */
.hero {
  padding: 90px 0 70px;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
}

h1.headline {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

h1.headline span { color: var(--accent); }

.subtext {
  max-width: 560px;
  margin: 0 auto 36px;
  color: var(--text-secondary);
  font-size: 17px;
}

.cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
}

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

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

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

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

.btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ===== Sections ===== */
section { padding: 60px 0; }

.section-label {
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  text-align: center;
}

.section-title {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 800;
  text-align: center;
  margin-bottom: 48px;
}

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

@media (max-width: 780px) {
  .grid-3 { grid-template-columns: 1fr; }
  nav.links { display: none; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--card-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 14px; }

/* ===== How it works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 780px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  display: flex;
  gap: 16px;
  padding: 20px;
}

.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.step p { color: var(--text-secondary); font-size: 14px; }

/* ===== CTA banner ===== */
.cta-banner {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 50px 30px;
  text-align: center;
}

.cta-banner h2 { font-size: 26px; font-weight: 800; margin-bottom: 10px; }
.cta-banner p { color: var(--text-secondary); margin-bottom: 26px; }

/* ===== Footer ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 40px;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 13px;
}

.footer-links a:hover { color: var(--accent); }

.footer-note {
  color: var(--text-muted);
  font-size: 13px;
}

/* ===== Legal pages (privacy / terms) ===== */
.legal {
  padding: 60px 0 100px;
}

.legal .updated {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 28px;
}

.legal h1 {
  font-size: clamp(28px, 5vw, 38px);
  font-weight: 800;
  margin-bottom: 8px;
}

.legal h2 {
  font-size: 18px;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 10px;
}

.legal p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 4px;
}

.legal .back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 30px;
}