/* RoomieExpense App Landing Page - Theme from KMP Color.kt */

:root {
  --font-family: 'Cairo', sans-serif;
  --color-primary: #00897B;
  --color-primary-light: #4DB6AC;
  --color-secondary: #1976D2;
  --color-tertiary: #FFA000;
  --color-background: #FAFAFA;
  --color-surface: #FFFFFF;
  --color-on-background: #212121;
  --color-on-surface: #424242;
  --color-outline: #BDBDBD;
  --color-success: #2BA951;
  --color-warning: #FF9800;
  --color-error: #C13F55;
  --color-info: #2196F3;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-1: 0 2px 4px rgba(0,0,0,0.08);
  --shadow-2: 0 4px 8px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
  --color-primary: #4DB6AC;
  --color-background: #121212;
  --color-surface: #1E1E1E;
  --color-on-background: #E0E0E0;
  --color-on-surface: #EEEEEE;
}

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-on-background);
  background: var(--color-background);
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
  padding: var(--spacing-lg) var(--spacing-xl);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  font-size: 2rem;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.lang-switcher a {
  color: var(--color-on-surface);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.lang-switcher a:hover {
  background: var(--color-background);
  color: var(--color-primary);
}

.lang-switcher a.active {
  color: var(--color-primary);
  font-weight: 700;
}

.lang-switcher .sep {
  color: var(--color-outline);
}

/* Main */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-xl);
}

/* Hero */
.hero {
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-on-background);
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-on-surface);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

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

.btn-secondary {
  background: var(--color-secondary);
  color: white;
}

/* Features - Bento layout (matches app-page.blade.php) */
.features {
  padding: var(--spacing-xxl) 0;
}

.features-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.features-header .section-title {
  margin-bottom: var(--spacing-sm);
}

.features-header .section-subtitle {
  color: var(--color-on-surface);
  font-size: 1rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-on-background);
}

.section-subtitle {
  text-align: center;
  color: var(--color-on-surface);
  font-size: 1rem;
}

/* Highlights - chips (matches .highlight-chip in Blade) */
.feature-highlights {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xxl);
}

.highlight-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, rgba(0, 137, 123, 0.06) 0%, rgba(0, 137, 123, 0.02) 100%);
  border: 1px solid rgba(0, 137, 123, 0.25);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-on-background);
}

.highlight-chip .highlight-icon {
  font-size: 1rem;
  opacity: 0.9;
}

/* Bento grid (matches .feature-bento, .feature-tile in Blade) */
.feature-bento {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: minmax(140px, auto);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xxl);
}

.feature-tile {
  position: relative;
  background: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.feature-tile--wide {
  grid-column: span 2;
}

.feature-tile-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.feature-tile-icon {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
  line-height: 1;
}

.feature-tile-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-tile-desc {
  color: var(--color-on-surface);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Target users callout (matches .target-users-callout in Blade) */
.target-users-callout {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-1);
}

.target-users-label {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.target-users-list {
  color: var(--color-on-surface);
  font-size: 0.95rem;
}

/* Legal / Tabs */
.legal {
  padding: var(--spacing-xxl) 0;
}

.tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.tab-btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border: 2px solid var(--color-outline);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--color-on-surface);
  text-decoration: none;
  transition: all 0.2s;
}

.tab-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.tab-panel {
  display: none;
  background: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.tab-panel.active {
  display: block;
}

.tab-panel h3 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.last-updated {
  font-size: 0.9rem;
  color: var(--color-on-surface);
  margin-bottom: var(--spacing-xl);
}

.legal-content {
  max-height: 500px;
  overflow-y: auto;
}

.legal-section {
  margin-bottom: var(--spacing-xl);
}

.legal-section h4 {
  font-size: 1.1rem;
  color: var(--color-on-background);
  margin-bottom: var(--spacing-md);
}

.legal-text {
  color: var(--color-on-surface);
  font-size: 0.95rem;
  line-height: 1.7;
}

.contact-section {
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.contact-section .section-title {
  margin-bottom: var(--spacing-md);
}

.contact-actions {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.contact-actions-center {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xl);
  background: var(--color-surface);
  border: 2px solid var(--color-outline);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
}

.contact-action:hover {
  border-color: var(--color-primary);
  background: rgba(0, 137, 123, 0.08);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.contact-icon {
  font-size: 2rem;
}

.contact-text {
  font-size: 0.95rem;
}

.support-hours {
  margin-bottom: var(--spacing-lg);
  color: var(--color-on-surface);
}

.support-hours-badge {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-md);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  color: var(--color-on-surface);
  font-size: 0.9rem;
  text-align: center;
}

/* Legal pages (Privacy Policy, Terms) */
.legal-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
}

.legal-page .back-link {
  display: inline-block;
  margin-bottom: var(--spacing-xl);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.legal-page .back-link:hover {
  text-decoration: underline;
}

.legal-page h1 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.legal-page .legal-content {
  max-height: none;
}

.legal-page .legal-section h2 {
  font-size: 1.25rem;
  color: var(--color-on-background);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.header .logo {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header .logo:hover {
  color: var(--color-primary);
}

/* Footer */
.footer {
  background: var(--color-surface);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
  box-shadow: 0 -2px 4px rgba(0,0,0,0.05);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.footer-links a {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.copyright {
  font-size: 0.9rem;
  color: var(--color-on-surface);
}

/* Responsive */
@media (max-width: 900px) {
  .feature-bento {
    grid-template-columns: 1fr;
  }

  .feature-tile--wide {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  main {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .feature-highlights {
    justify-content: flex-start;
  }

  .target-users-callout {
    flex-direction: column;
    align-items: flex-start;
  }

  .tabs {
    flex-direction: column;
  }

  .tab-btn {
    width: 100%;
  }
}