/* ===========================================
   Drift Learn - Legal Pages (Privacy / ToS)
   Floating Leaf Theme — reading-optimised variant
   =========================================== */

:root {
  /* Brand palette (matched to styles.css) */
  --bg-deep: #0f172a;
  --bg-card: rgba(14, 38, 32, 0.65);
  --bg-card-solid: #122821;
  --border-soft: rgba(100, 200, 150, 0.18);
  --text-primary: #ecfeff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent: #34d399;
  --accent-strong: #10b981;
  --accent-soft: rgba(52, 211, 153, 0.12);
  --link: #5eead4;
  --warn-bg: rgba(251, 191, 36, 0.08);
  --warn-border: rgba(251, 191, 36, 0.3);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Nunito', 'cwTeXYen', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.75;
  min-height: 100vh;
  padding: 0;
}

/* Subtle gradient background, no video to avoid distracting from text */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at top left, rgba(16, 185, 129, 0.08), transparent 60%),
    radial-gradient(ellipse at bottom right, rgba(6, 182, 212, 0.06), transparent 60%);
  z-index: -1;
  pointer-events: none;
}

/* Top nav bar */
.legal-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid var(--border-soft);
}

.legal-nav-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.legal-nav a.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.05rem;
}

.legal-nav a.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.legal-nav-links {
  display: flex;
  gap: 18px;
  font-size: 0.92rem;
}

.legal-nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.legal-nav-links a.active {
  color: var(--accent);
  font-weight: 700;
}

/* Container */
main.legal-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

/* Header block */
.legal-header {
  margin-bottom: 40px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-soft);
}

.legal-header h1 {
  font-size: clamp(1.85rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.legal-meta span strong {
  color: var(--text-secondary);
  font-weight: 600;
}

.legal-disclaimer {
  margin-top: 18px;
  padding: 12px 16px;
  background: var(--warn-bg);
  border-left: 3px solid var(--warn-border);
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Table of contents */
.legal-toc {
  background: var(--accent-soft);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 40px;
}

.legal-toc-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.legal-toc ol {
  list-style: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px 20px;
}

.legal-toc ol a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.94rem;
  transition: color 0.15s ease;
  display: block;
  padding: 4px 0;
}

.legal-toc ol a:hover {
  color: var(--accent);
}

/* Content section */
.legal-content section {
  margin-bottom: 40px;
  scroll-margin-top: 80px;
}

.legal-content h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-soft);
  letter-spacing: -0.005em;
}

.legal-content h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--accent);
  margin-top: 24px;
  margin-bottom: 10px;
}

.legal-content p {
  margin-bottom: 14px;
  color: var(--text-secondary);
  line-height: 1.85;
}

.legal-content ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 16px;
}

.legal-content ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 6px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.legal-content ul li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.65rem;
  top: 0.55em;
}

.legal-content ol {
  padding-left: 22px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.legal-content ol li {
  margin-bottom: 6px;
  line-height: 1.75;
}

.legal-content strong {
  color: var(--text-primary);
  font-weight: 700;
}

.legal-content a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.15s ease;
}

.legal-content a:hover {
  color: var(--accent);
}

/* Tables */
.legal-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 20px;
  font-size: 0.92rem;
  background: var(--bg-card-solid);
  border-radius: 8px;
  overflow: hidden;
}

.legal-content thead {
  background: rgba(16, 185, 129, 0.12);
}

.legal-content th,
.legal-content td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-secondary);
}

.legal-content th {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.88rem;
}

.legal-content tr:last-child td {
  border-bottom: none;
}

.legal-content blockquote {
  border-left: 3px solid var(--accent-strong);
  background: var(--accent-soft);
  padding: 12px 18px;
  margin: 16px 0;
  border-radius: 0 6px 6px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.legal-content hr {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 28px 0;
}

/* Footer */
.legal-footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 24px 56px;
  border-top: 1px solid var(--border-soft);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

.legal-footer a {
  color: var(--link);
  text-decoration: none;
}

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

/* Mobile */
@media (max-width: 600px) {
  main.legal-page {
    padding: 32px 18px 64px;
  }

  .legal-header h1 {
    font-size: 1.7rem;
  }

  .legal-content h2 {
    font-size: 1.22rem;
  }

  .legal-content h3 {
    font-size: 1.02rem;
  }

  .legal-toc ol {
    grid-template-columns: 1fr;
  }

  .legal-nav-inner {
    padding: 12px 18px;
  }

  .legal-nav-links {
    gap: 14px;
    font-size: 0.86rem;
  }
}


/* ===========================================
   Back-to-top floating button
   Brand: emerald accent + leaf glass tone
   A11y: aria-label, focus-visible, prefers-reduced-motion
   =========================================== */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(100, 200, 150, 0.35);
  background: rgba(14, 38, 32, 0.85);
  color: #34d399;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  z-index: 100;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: rgba(52, 211, 153, 0.18);
  color: #ecfeff;
  border-color: rgba(52, 211, 153, 0.6);
  outline: none;
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 600px) {
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .back-to-top {
    transition: opacity 0.25s ease;
    transform: none;
  }
}