/* ==========================================================================
   Whiteboard: Draw & Teach - Privacy Policy Stylesheet
   Brand Theme: JEWEALITY Blue & Dark Slate
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Brand Palette */
  --primary: #196EF5;
  --primary-hover: #0D53C2;
  --primary-light: #EBF3FF;
  --primary-active: #2563EB;
  --primary-glow: rgba(25, 110, 245, 0.18);

  /* Light Theme Defaults */
  --bg-body: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --border-color: #E2E8F0;
  --border-focus: #196EF5;
  
  /* Text */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-tertiary: #64748B;
  --text-muted: #94A3B8;

  /* Accent Badges */
  --badge-bg: #E8F1FE;
  --badge-text: #196EF5;
  --success-bg: #ECFDF5;
  --success-text: #059669;
  --warning-bg: #FFFBEB;
  --warning-text: #D97706;

  /* Layout & Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-body: #0B0F19;
  --bg-surface: #111827;
  --bg-surface-elevated: #162033;
  --bg-subtle: #1E293B;
  --border-color: #1F293D;
  --border-focus: #3B82F6;

  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-tertiary: #94A3B8;
  --text-muted: #64748B;

  --badge-bg: rgba(25, 110, 245, 0.2);
  --badge-text: #60A5FA;
  --success-bg: rgba(16, 185, 129, 0.15);
  --success-text: #34D399;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --warning-text: #FBBF24;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 30px -5px rgba(0, 0, 0, 0.7);
}

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

html {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-body);
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

/* Reading Progress Bar */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #196EF5, #00D2FF);
  width: 0%;
  z-index: 9999;
  transition: width 0.1s linear;
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

[data-theme="dark"] .navbar {
  background-color: rgba(17, 24, 39, 0.85);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.brand-tag {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.theme-toggle-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--border-color);
  transform: translateY(-1px);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--primary-glow);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--primary-glow);
}

/* Hero Section */
.hero {
  position: relative;
  background: radial-gradient(circle at 50% 0%, var(--primary-glow) 0%, transparent 70%);
  padding: 3.5rem 1.5rem 2.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-title .highlight {
  color: var(--primary);
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.8rem;
}

.meta-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.meta-pill strong {
  color: var(--text-primary);
}

/* Key Highlights Section */
.highlights-section {
  max-width: 1240px;
  margin: -1.5rem auto 2.5rem;
  padding: 0 1.5rem;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.highlight-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.highlight-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.highlight-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--badge-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
}

.highlight-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.highlight-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.highlight-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Main Content Layout with Sidebar */
.main-wrapper {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* Sidebar Table of Contents */
.sidebar {
  position: sticky;
  top: 90px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}

.toc-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.toc-link {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  line-height: 1.35;
}

.toc-link:hover {
  color: var(--primary);
  background: var(--bg-subtle);
}

.toc-link.active {
  color: var(--primary);
  font-weight: 700;
  background: var(--badge-bg);
  border-left: 3px solid var(--primary);
}

.sidebar-contact {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.sidebar-contact a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

/* Document Body Content */
.content-body {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.policy-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 100px;
  transition: border-color var(--transition-fast);
}

.policy-card:hover {
  border-color: rgba(25, 110, 245, 0.35);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.section-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  background: var(--badge-bg);
  color: var(--badge-text);
  border-radius: var(--radius-sm);
}

.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.card-content {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.card-content p {
  margin-bottom: 1rem;
}

.card-content p:last-child {
  margin-bottom: 0;
}

.card-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.35rem 0 0.6rem;
}

.card-content ul, .card-content ol {
  margin: 0.75rem 0 1.25rem 1.4rem;
}

.card-content li {
  margin-bottom: 0.45rem;
}

.card-content strong {
  color: var(--text-primary);
}

.card-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.card-content a:hover {
  color: var(--primary-hover);
}

/* Custom Callouts / Alerts */
.callout {
  padding: 1.15rem 1.35rem;
  border-radius: var(--radius-md);
  margin: 1.25rem 0;
  border-left: 4px solid;
  font-size: 0.9rem;
  line-height: 1.6;
}

.callout-info {
  background: var(--badge-bg);
  border-color: var(--primary);
  color: var(--text-primary);
}

.callout-success {
  background: var(--success-bg);
  border-color: var(--success-text);
  color: var(--text-primary);
}

.callout-warning {
  background: var(--warning-bg);
  border-color: var(--warning-text);
  color: var(--text-primary);
}

.callout-title {
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}

/* Tables for Permissions & SDKs */
.table-responsive {
  overflow-x: auto;
  margin: 1.25rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.policy-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.policy-table th {
  background: var(--bg-subtle);
  color: var(--text-primary);
  font-weight: 700;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.policy-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  vertical-align: top;
}

.policy-table tr:last-child td {
  border-bottom: none;
}

.policy-table code {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-subtle);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--primary);
}

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
}

.status-badge.local {
  background: var(--success-bg);
  color: var(--success-text);
}

.status-badge.admob {
  background: var(--badge-bg);
  color: var(--badge-text);
}

/* Steps Box for Opt-Out */
.steps-box {
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1rem 0;
  border: 1px solid var(--border-color);
}

.steps-box ol {
  margin: 0.5rem 0 0 1.25rem;
}

.steps-box li {
  margin-bottom: 0.5rem;
}

/* Contact Developer Box */
.contact-developer-card {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--primary-light) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

[data-theme="dark"] .contact-developer-card {
  background: linear-gradient(135deg, var(--bg-surface) 0%, rgba(25, 110, 245, 0.15) 100%);
}

.contact-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.contact-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--badge-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item-text {
  display: flex;
  flex-direction: column;
}

.contact-item-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

.contact-item-val {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.contact-item-val:hover {
  color: var(--primary);
}

/* Footer */
.footer {
  margin-top: auto;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 1.5rem;
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  font-size: 0.8rem;
}

/* Print Stylesheet for Play Console reviewers / PDF download */
@media print {
  #reading-progress,
  .navbar,
  .sidebar,
  .theme-toggle-btn,
  .btn-primary,
  .footer-links,
  .theme-switch {
    display: none !important;
  }

  body {
    background: #FFFFFF !important;
    color: #000000 !important;
    font-size: 11pt;
    line-height: 1.4;
  }

  .main-wrapper {
    grid-template-columns: 1fr !important;
    padding: 0 !important;
  }

  .policy-card {
    border: none !important;
    box-shadow: none !important;
    padding: 1rem 0 !important;
    page-break-inside: avoid;
  }

  .card-header {
    border-bottom: 1px solid #CCCCCC !important;
  }
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .main-wrapper {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .sidebar {
    display: none; /* Hide sticky sidebar on tablet/mobile */
  }

  .policy-card {
    padding: 1.4rem;
  }
}

@media (max-width: 640px) {
  .nav-container {
    padding: 0.6rem 1rem;
  }

  .brand-title {
    font-size: 0.95rem;
  }

  .hero {
    padding: 2.5rem 1rem 1.8rem;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .highlights-section {
    padding: 0 1rem;
    margin-top: -1rem;
  }

  .main-wrapper {
    padding: 0 1rem 3rem;
  }

  .contact-details-grid {
    grid-template-columns: 1fr;
  }
}