/* ==========================================================================
   Bengaluru Tourism & City Travel Guide - Main Design System
   ========================================================================== */

:root {
  /* Color Palette - Vibrant Karnataka & Bengaluru Aesthetic */
  --primary: #D9531E;             /* Vibrant Terracotta / Saffron Orange */
  --primary-hover: #C03E0B;
  --primary-light: #FFF2EB;
  --primary-dark: #8C2A05;

  --secondary: #0D7C66;           /* Lush Emerald / Garden City Green */
  --secondary-hover: #085848;
  --secondary-light: #E8F5F1;

  --accent-gold: #F59E0B;         /* Heritage Royal Gold */
  --accent-gold-light: #FEF3C7;
  
  --dark-navy: #0F172A;           /* Deep Slate Navy */
  --dark-slate: #1E293B;
  
  --text-main: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --text-inverse: #FFFFFF;

  --bg-page: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-muted: #F1F5F9;
  --bg-glass: rgba(255, 255, 255, 0.85);

  --border-light: #E2E8F0;
  --border-subtle: #CBD5E1;
  --border-focus: #D9531E;

  /* Elevation Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 30px -10px rgba(0, 0, 0, 0.15);
  --shadow-card-hover: 0 16px 32px -8px rgba(217, 83, 30, 0.18), 0 8px 16px -4px rgba(0, 0, 0, 0.06);

  /* Border Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  color: var(--dark-navy);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Main Navigation Header */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-symbol {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, #F59E0B 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  box-shadow: 0 4px 10px rgba(217, 83, 30, 0.3);
}

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

.brand-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark-navy);
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--secondary);
}

.nav-menu {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 12px;
  list-style: none;
  flex: 1;
}

.nav-menu li {
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  text-align: center;
  line-height: 1.12;
  white-space: normal;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--dark-navy);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #E65100 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(217, 83, 30, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, #BF360C 100%);
  box-shadow: 0 6px 18px rgba(217, 83, 30, 0.38);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--secondary-light);
  color: var(--secondary);
  border-color: rgba(13, 124, 102, 0.2);
}

.btn-secondary:hover {
  background: var(--secondary);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.btn-outline {
  background: #FFFFFF;
  color: var(--dark-navy);
  border-color: var(--border-subtle);
}

.btn-outline:hover {
  background: var(--bg-muted);
  border-color: var(--dark-navy);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.84rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.hidden {
  display: none !important;
}

.auth-greeting {
  margin: 0 auto 18px auto;
  padding: 12px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(217, 83, 30, 0.18);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
  display: inline-block;
  text-align: center;
}

.auth-greeting-line {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--dark-navy);
  letter-spacing: -0.02em;
}

.auth-greeting-subtext {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.auth-modal {
  max-width: 520px;
}

/* Sections */
.section {
  padding: 72px 0;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 20px;
  flex-wrap: wrap;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.2rem;
  color: var(--dark-navy);
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 650px;
  margin-top: 8px;
}

/* Footer */
.main-footer {
  background: var(--dark-navy);
  color: #E2E8F0;
  padding: 64px 0 32px 0;
  border-top: 1px solid var(--dark-slate);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand h4 {
  color: #FFFFFF;
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.footer-brand p {
  color: #94A3B8;
  font-size: 0.92rem;
  line-height: 1.7;
}

.footer-col h5 {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #94A3B8;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--dark-slate);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #64748B;
  flex-wrap: wrap;
  gap: 12px;
}

/* Responsive */
@media (max-width: 992px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 1.75rem;
  }
}