/* ArtRouting - Main Stylesheet */
/* Brand colors: Sun Orange #F5A623, Arrow Red #B83A4B, Destination Blue #3B5998 */
/* Mobile-first responsive design */

:root {
  /* === Brand Colors === */
  --color-sun-orange: #F5A623;
  --color-arrow-red: #B83A4B;
  --color-destination-blue: #3B5998;

  /* === Theme Colors === */
  --bg-primary: #121418;
  --bg-secondary: #1a1d24;
  --bg-tertiary: #242830;
  --bg-card: #1e2128;
  --border: #2e333d;
  --border-hover: #3d4350;
  --text-primary: #f0f0f0;
  --text-secondary: #9ba3b0;
  --text-muted: #6b7280;
  --accent: #F5A623;
  --accent-hover: #e09515;
  --accent-subtle: rgba(245, 166, 35, 0.12);
  --action: #B83A4B;
  --action-hover: #a03040;
  --info: #3B5998;
  --info-hover: #2d4a85;
  --green: #34c759;
  --red: #ef4444;
  --yellow: #f59e0b;
  --white: #ffffff;

  /* === Spacing === */
  --nav-height: 56px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* =========================================
   NAVBAR - Mobile-first with hamburger
   ========================================= */
.navbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand:hover { text-decoration: none; }
.nav-logo { height: 28px; width: auto; }
.nav-brand-text { color: var(--color-sun-orange); }

/* Hamburger always visible (mobile-first) */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  padding: 8px 10px;
  transition: all 0.15s;
}

.nav-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--border);
}

.nav-toggle .fa-times { display: none; }
.nav-toggle.open .fa-bars { display: none; }
.nav-toggle.open .fa-times { display: inline; }

/* Nav links - hidden by default, slide-down menu */
.nav-links {
  display: none;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--accent);
  flex-direction: column;
  padding: 8px 0;
  z-index: 99;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.nav-links.open {
  display: flex;
}

.nav-link {
  padding: 10px 20px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.nav-link:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  text-decoration: none;
  border-left-color: var(--accent);
}

.nav-link.active {
  background: var(--accent-subtle);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

.nav-link i { width: 18px; text-align: center; }

.nav-user {
  display: flex;
  flex-direction: column;
  padding: 8px 0;
  margin-top: 4px;
  border-top: 1px solid var(--border);
}

.nav-user-name {
  font-size: 12px;
  color: var(--text-muted);
  padding: 4px 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-logout { color: var(--red) !important; }
.nav-logout:hover { background: rgba(239, 68, 68, 0.08) !important; }

.btn-nav-register {
  background: var(--color-sun-orange) !important;
  color: #000 !important;
  font-weight: 600;
  border-left-color: transparent !important;
  margin: 4px 12px;
  border-radius: 8px;
  justify-content: center;
  padding: 10px 20px;
}

.btn-nav-register:hover { opacity: 0.9; background: var(--accent-hover) !important; }

/* --- Dropdown menus (mobile-first) --- */
.nav-dropdown { display: contents; }

.nav-dropdown-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 100%;
  justify-content: flex-start;
}

.nav-chevron {
  font-size: 10px;
  margin-left: 2px;
  transition: transform 0.2s;
}

.nav-dropdown.open > .nav-dropdown-btn .nav-chevron {
  transform: rotate(180deg);
}

/* Mobile: dropdown items indented under parent */
.nav-dropdown-menu {
  display: none;
}

.nav-dropdown.open > .nav-dropdown-menu {
  display: flex;
  flex-direction: column;
}

.nav-dropdown-menu .nav-link {
  padding-left: 40px;
  font-size: 13px;
}

/* Desktop: horizontal top bar navigation */
@media (min-width: 768px) {
  .nav-toggle { display: none; }

  .nav-links {
    display: flex;
    position: static;
    flex-direction: row;
    background: none;
    border-bottom: none;
    box-shadow: none;
    padding: 0;
    flex: 1;
    align-items: center;
    gap: 2px;
    margin-left: 16px;
  }

  .nav-link {
    padding: 6px 10px;
    border-radius: 6px;
    border-left: none;
    font-size: 13px;
    white-space: nowrap;
  }

  .nav-link:hover { border-left-color: transparent; }
  .nav-link.active { border-left-color: transparent; border-radius: 6px; }

  /* Desktop dropdowns */
  .nav-dropdown {
    display: flex;
    position: relative;
  }

  .nav-dropdown-btn {
    width: auto;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 13px;
    white-space: nowrap;
  }

  .nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    padding: 6px 0;
    z-index: 200;
    flex-direction: column;
  }

  .nav-dropdown:hover > .nav-dropdown-menu,
  .nav-dropdown.open > .nav-dropdown-menu {
    display: flex;
  }

  .nav-dropdown-menu .nav-link {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 0;
  }

  .nav-dropdown-menu .nav-link:first-child { border-radius: 8px 8px 0 0; }
  .nav-dropdown-menu .nav-link:last-child { border-radius: 0 0 8px 8px; }

  .nav-user {
    flex-direction: row;
    align-items: center;
    margin-left: auto;
    margin-top: 0;
    border-top: none;
    padding: 0;
    gap: 6px;
  }

  .nav-user-name { padding: 0; text-transform: none; letter-spacing: 0; font-size: 12px; }

  .btn-nav-register {
    margin: 0;
    padding: 6px 14px;
    font-size: 13px;
  }
}

/* Wider desktop: roomier nav items */
@media (min-width: 1100px) {
  .nav-link { padding: 8px 14px; font-size: 14px; }
  .nav-dropdown-btn { padding: 8px 14px; font-size: 14px; }
  .nav-links { gap: 4px; margin-left: 24px; }
  .nav-user { gap: 10px; }
  .nav-user-name { font-size: 13px; }
}

/* =========================================
   MAIN CONTENT
   ========================================= */
.main-content {
  flex: 1;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  font-family: inherit;
}

.btn:hover { border-color: var(--border-hover); text-decoration: none; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary { background: var(--accent); border-color: var(--accent); color: #000; font-weight: 600; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-action { background: var(--action); border-color: var(--action); color: #fff; font-weight: 600; }
.btn-action:hover { background: var(--action-hover); border-color: var(--action-hover); }

.btn-outline { background: transparent; border-color: var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #000; }

.btn-outline-red { background: transparent; border-color: var(--action); color: var(--action); }
.btn-outline-red:hover { background: var(--action); color: #fff; }

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-full { width: 100%; justify-content: center; }
.btn.active { background: var(--accent); border-color: var(--accent); color: #000; }

/* =========================================
   FORMS
   ========================================= */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.form-check { font-size: 13px; }
.form-check label { display: inline; font-weight: 400; }
.form-check input[type="checkbox"] { margin-right: 6px; }

/* =========================================
   ALERTS
   ========================================= */
.alert {
  padding: 12px 20px;
  border-radius: 8px;
  margin: 12px 20px;
  font-size: 14px;
}

.alert-success { background: rgba(52, 199, 89, 0.12); color: var(--green); border: 1px solid rgba(52, 199, 89, 0.25); }
.alert-error { background: rgba(239, 68, 68, 0.12); color: var(--red); border: 1px solid rgba(239, 68, 68, 0.25); }

/* =========================================
   AUTH PAGES
   ========================================= */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 120px);
  padding: 40px 20px;
}

.auth-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
}

.auth-header { text-align: center; margin-bottom: 24px; }
.auth-header h2 { font-size: 24px; margin-bottom: 8px; color: var(--accent); }
.auth-header p { color: var(--text-secondary); font-size: 14px; }

.auth-form { margin-bottom: 16px; }

.auth-divider {
  text-align: center;
  margin: 20px 0;
  position: relative;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  background: var(--bg-secondary);
  padding: 0 16px;
  color: var(--text-secondary);
  font-size: 13px;
  position: relative;
}

.auth-oauth { display: flex; flex-direction: column; gap: 8px; }
.btn-oauth { justify-content: center; }
.btn-google { border-color: #4285f4; }
.btn-github { border-color: #6e5494; }

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* =========================================
   LANDING HERO
   ========================================= */
.landing-hero {
  padding: 60px 20px 50px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border);
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-sun-orange) 0%, var(--color-arrow-red) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

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

@media (min-width: 768px) {
  .landing-hero { padding: 80px 20px 60px; }
  .hero-title { font-size: 48px; }
  .hero-subtitle { font-size: 18px; max-width: 600px; }
}

/* =========================================
   FEATURE GRID
   ========================================= */
.landing-features {
  padding: 40px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) { .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
@media (min-width: 1024px) { .feature-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

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

.feature-icon {
  font-size: 32px;
  color: var(--color-sun-orange);
  margin-bottom: 16px;
}

.feature-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--text-primary); }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* =========================================
   PLACEHOLDER PAGES
   ========================================= */
.placeholder-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  color: var(--text-secondary);
  gap: 16px;
}

.placeholder-page i { color: var(--border); }
.placeholder-page h2 { color: var(--text-primary); }

/* =========================================
   LEGAL PAGES
   ========================================= */
.legal-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 16px;
}

@media (min-width: 768px) { .legal-page { padding: 40px 20px; } }

.legal-page h1 { font-size: 24px; margin-bottom: 8px; color: var(--accent); }
.legal-page h2 { font-size: 18px; margin-top: 28px; margin-bottom: 12px; }
.legal-page p { margin-bottom: 12px; color: var(--text-secondary); }
.legal-page ul { padding-left: 24px; margin-bottom: 12px; }
.legal-page li { margin-bottom: 4px; color: var(--text-secondary); }
.legal-page code { background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-size: 13px; }

@media (min-width: 768px) {
  .legal-page h1 { font-size: 28px; }
  .legal-page h2 { font-size: 20px; margin-top: 32px; }
}

/* =========================================
   ERROR PAGE
   ========================================= */
.error-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 120px);
  padding: 40px 20px;
}

.error-card { text-align: center; max-width: 400px; }
.error-icon { font-size: 48px; color: var(--accent); margin-bottom: 16px; }
.error-card h2 { margin-bottom: 12px; }
.error-card p { color: var(--text-secondary); margin-bottom: 24px; }

/* =========================================
   FOOTER
   ========================================= */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 16px;
  margin-top: auto;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-container { flex-direction: row; justify-content: space-between; text-align: left; }
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a { font-size: 13px; color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent); }

.footer-info {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-version {
  color: var(--accent);
  font-family: 'Cascadia Code', 'Fira Code', Consolas, monospace;
  font-size: 11px;
}

/* =========================================
   MODIFIED BADGE
   ========================================= */
.modified-badge {
  font-size: 11px;
  color: var(--yellow);
  margin-left: 8px;
}

.text-muted { color: var(--text-secondary); }

/* =========================================
   SCROLLBAR
   ========================================= */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-tertiary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border); }

/* =========================================
   UTILITY CLASSES
   ========================================= */
.text-orange { color: var(--color-sun-orange); }
.text-red { color: var(--color-arrow-red); }
.text-blue { color: var(--color-destination-blue); }
.bg-accent-subtle { background: var(--accent-subtle); }

/* =========================================
   FLOATING BACK/HOME BUTTON
   ========================================= */
.floating-back-btn {
  position: fixed !important;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 28px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(245,166,35,0.4);
  transition: all 0.2s ease;
  cursor: pointer;
}
.floating-back-btn:hover {
  background: #e6951a;
  box-shadow: 0 6px 20px rgba(245,166,35,0.5);
  transform: translateY(-2px);
}
.floating-back-btn i {
  font-size: 13px;
}
/* Hide on home page (via JS) */
.floating-back-btn.hidden {
  display: none;
}