:root {
  --bg: #000000;
  --bg-elevated: #111111;
  --bg-card: #1a1a1a;
  --border: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --text-muted: rgba(255, 255, 255, 0.55);
  --accent: rgb(242, 140, 31);
  --accent-dim: rgba(242, 140, 31, 0.15);
  --accent-glow: rgba(242, 140, 31, 0.35);
  --radius: 16px;
  --radius-sm: 10px;
  --max-width: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

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

.container {
  width: min(100% - 40px, var(--max-width));
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(0, 0, 0, 0.72);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}

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

.logo-icon {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* Hero */

.hero {
  padding: 72px 0 56px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent-dim);
  border: 1px solid rgba(242, 140, 31, 0.25);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-subtitle-en {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.38);
  margin-top: -8px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #000;
  box-shadow: 0 8px 32px var(--accent-glow);
}

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

.btn-disabled {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  cursor: default;
  pointer-events: none;
}

/* Sections */

section {
  padding: 56px 0;
}

.section-label {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.section-desc {
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 0 40px;
}

/* Features grid */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(242, 140, 31, 0.3);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Privacy highlights */

.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.highlight-item {
  padding: 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.highlight-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
}

.highlight-item span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Legal pages */

.legal-page {
  padding: 48px 0 80px;
}

.legal-page h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0 0 8px;
}

.legal-meta {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 40px;
}

.legal-content h2 {
  font-size: 1.15rem;
  margin: 32px 0 12px;
  color: var(--text);
}

.legal-content p,
.legal-content li {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.legal-content ul {
  padding-left: 1.25rem;
}

.legal-content li {
  margin-bottom: 8px;
}

/* Footer */

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

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  text-decoration: none;
}

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

.footer-copy {
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.82rem;
  margin: 0;
}

/* Responsive */

@media (max-width: 640px) {
  .nav-links {
    gap: 12px;
  }

  .nav-links .nav-hide-mobile {
    display: none;
  }

  .hero {
    padding: 48px 0 40px;
  }

  section {
    padding: 40px 0;
  }

  .lang-select {
    max-width: 108px;
    font-size: 0.78rem;
  }
}

/* Language switcher */

.lang-switcher-item {
  display: flex;
  align-items: center;
}

.lang-select {
  appearance: none;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 28px 6px 10px;
  font-size: 0.82rem;
  font-family: var(--font);
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff88' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}

.lang-select:hover,
.lang-select:focus {
  color: var(--text);
  border-color: rgba(242, 140, 31, 0.35);
  outline: none;
}

/* RTL (Arabic) */

html[dir="rtl"] .site-header .container,
html[dir="rtl"] .footer-inner,
html[dir="rtl"] .hero-actions,
html[dir="rtl"] .feature-card,
html[dir="rtl"] .highlight-item,
html[dir="rtl"] .legal-content ul {
  text-align: start;
}

html[dir="rtl"] .logo {
  flex-direction: row-reverse;
}

html[dir="rtl"] .lang-select {
  background-position: left 8px center;
  padding: 6px 10px 6px 28px;
}