/* ============================================================
   RefCard — Modern Web Theme & Design System
   ============================================================ */

:root {
  --bg: #0b0e14;
  --bg-sub: #101522;
  --surface: #141926;
  --surface-raised: #1c2336;
  --border: #222d42;
  --border-glow: rgba(56, 189, 248, 0.3);
  
  --accent: #38bdf8;
  --accent-rgb: 56, 189, 248;
  --accent-glow: rgba(56, 189, 248, 0.25);
  --accent-hover: #0ea5e9;

  --gold: #f59e0b;
  --green: #22c55e;
  --red: #ef4444;
  --purple: #a855f7;

  --text: #ffffff;
  --text-sub: #94a3b8;
  --text-muted: #64748b;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(56, 189, 248, 0.15);
  --font-main: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

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

/* ── Container ────────────────────────────────────────────── */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ───────────────────────────────────────────── */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 14, 20, 0.85);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.5px;
}

.logo-badge {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  color: #000;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

.btn-nav-download {
  background: linear-gradient(135deg, var(--accent), #0284c7);
  color: #000;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 99px;
  text-decoration: none;
  font-size: 0.9rem;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-nav-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.5);
}

/* ── Hero Section ─────────────────────────────────────────── */
.hero {
  padding: 90px 0 60px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-sub);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent), #0ea5e9);
  color: #000;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: 99px;
  text-decoration: none;
  font-size: 1.05rem;
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.4);
  transition: all 0.25s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.6);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-raised);
  color: var(--text);
  font-weight: 600;
  padding: 16px 28px;
  border-radius: 99px;
  text-decoration: none;
  border: 1px solid var(--border);
  font-size: 1.05rem;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: #242c44;
  border-color: var(--accent);
}

/* ── Features Grid ────────────────────────────────────────── */
.features-section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-sub);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-sub);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ── Legal / Policy Page Layout ───────────────────────────── */
.legal-page {
  padding: 60px 0 100px;
}

.legal-header {
  margin-bottom: 48px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 32px;
}

.legal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 32px;
}

.legal-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.legal-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 20px 0 8px;
  color: #fff;
}

.legal-card p, .legal-card li {
  color: var(--text-sub);
  font-size: 0.98rem;
  line-height: 1.75;
  margin-bottom: 12px;
}

.legal-card ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.badge-compliant {
  display: inline-block;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 99px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ── Support & FAQ ────────────────────────────────────────── */
.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

@media (max-width: 860px) {
  .support-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}

.contact-text a, .contact-text p {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.95rem;
}

.contact-text a:hover {
  color: var(--accent);
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-question:hover {
  color: var(--accent);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-sub);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  background: var(--bg-sub);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
  margin-top: 80px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-link {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .legal-card {
    padding: 24px;
  }
}