/* ============================================================================
   Tour & Travels Design System - Main Stylesheet
   Theme: Tour & Travels (Generic, Reusable)
   Version: 1.0
   ============================================================================ */

/* ============================================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================================ */
:root {
  /* Color Palette */
  --color-coral-50: #FFF5F5;
  --color-coral-100: #FFE3E3;
  --color-coral-200: #FFCCCC;
  --color-coral-500: #FF6B6B;
  --color-coral-600: #E55A5A;
  --color-coral-700: #CC4A4A;

  --color-warm: #FFF8F0;
  --color-sandstone: #F5E6D3;

  --color-gray-50: #F9FAFB;
  --color-gray-100: #d8d8d8;  /* Border color - lighter for better look */
  --color-gray-200: #E5E7EB;  /* Slightly darker border for inputs */
  --color-gray-300: #D1D5DB;  /* Hover state borders */
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;  /* Labels, darker text */
  --color-gray-800: #1F2937;  /* Headings */
  --color-gray-900: #111827;

  --color-white: #FFFFFF;
  --color-black: #000000;

  --color-yellow-500: #EAB308;
  --color-green-500: #22C55E;

  /* Theme Customization Variables */
  --theme-primary: var(--color-coral-500);
  --theme-secondary: var(--color-coral-600);
  --theme-accent: var(--color-warm);
  --theme-hero-bg: var(--color-warm);
  --theme-footer-bg: var(--color-gray-900);
  --theme-footer-text: #FFFFFF;
  --theme-text-primary: var(--color-gray-900);
  --theme-text-secondary: var(--color-gray-600);

  /* Typography - Compact Sizes */
  --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 0.9375rem;  /* 15px - slightly reduced */
  --font-size-lg: 1.0625rem;    /* 17px - reduced */
  --font-size-xl: 1.125rem;     /* 18px - reduced */
  --font-size-2xl: 1.375rem;    /* 22px - reduced */
  --font-size-3xl: 1.625rem;    /* 26px - reduced */
  --font-size-4xl: 2rem;        /* 32px - reduced */
  --font-size-5xl: 2.5rem;      /* 40px - reduced */
  --font-size-6xl: 3rem;        /* 48px - reduced */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing - Compact for Enterprise Look */
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-8: 1.5rem;    /* 24px - reduced from 32px */
  --spacing-10: 2rem;     /* 32px - reduced from 40px */
  --spacing-12: 2.5rem;   /* 40px - reduced from 48px */
  --spacing-16: 3rem;     /* 48px - reduced from 64px */
  --spacing-20: 3.5rem;   /* 56px - reduced from 80px */
  --spacing-24: 4rem;     /* 64px - reduced from 96px */
  --spacing-26: 5rem;
  /* Border Radius */
  --radius-sm: 0.5rem;    /* 8px */
  --radius-md: 0.75rem;   /* 12px */
  --radius-lg: 1rem;      /* 16px */
  --radius-xl: 1.25rem;   /* 20px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Border Colors - Semantic Variables */
  --border-color-default: var(--color-gray-100);     /* Default border for cards, containers */
  --border-color-input: var(--color-gray-100);       /* Form inputs, search bars */
  --border-color-card: var(--color-gray-100);        /* Card borders */
  --border-color-divider: var(--color-gray-100);     /* Dividers, separators */
  --border-color-nav: var(--color-gray-100);         /* Navigation borders */
  --border-color-focus: var(--theme-primary);        /* Focus state borders */
  --border-color-active: var(--theme-primary);       /* Active state borders */
  --border-color-avatar: var(--color-gray-100);      /* Avatar/profile image borders */

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout - Compact */
  --container-max-width: 80rem; /* 1280px */
  --navbar-height: 3.5rem; /* 56px - reduced from 64px */

  /* Width */
  --width-100: 100px;
}

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-gray-900);
  background-color: var(--color-white);
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-xl);
}

@media (min-width: 640px) {
  h1 {
    font-size: var(--font-size-5xl);
  }

  h2 {
    font-size: var(--font-size-4xl);
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: var(--font-size-6xl);
  }
}

/* ============================================================================
   LAYOUT UTILITIES
   ============================================================================ */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--spacing-6);
    padding-right: var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--spacing-8);
    padding-right: var(--spacing-8);
  }
}

.section {
  padding-top: var(--spacing-8);
  padding-bottom: var(--spacing-8);
}

@media (min-width: 640px) {
  .section {
    padding-top: var(--spacing-10);
    padding-bottom: var(--spacing-10);
  }
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--spacing-12);
    padding-bottom: var(--spacing-12);
  }
}

/* ============================================================================
   NAVIGATION
   ============================================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-100);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}

.navbar-logo:hover {
  border-color: var(--color-gray-100);
  background-color: var(--color-gray-50);
}

.navbar-logo-icon {
  width: 2rem;
  height: 2rem;
  background-color: var(--color-coral-500);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.navbar-logo:hover .navbar-logo-icon {
  transform: scale(1.1);
  background-color: var(--color-coral-600);
}

.navbar-logo-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-white);
}

.navbar-logo-text {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
}

.navbar-links {
  display: none;
  align-items: center;
  gap: var(--spacing-2);
}

@media (min-width: 768px) {
  .navbar-links {
    display: flex;
  }
}

.nav-link {
  color: var(--color-gray-600);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  padding: var(--spacing-2) var(--spacing-3);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background-color: var(--color-coral-500);
  transition: transform var(--transition-base);
}

.nav-link:hover {
  color: var(--color-coral-500);
  background-color: var(--color-coral-50);
}

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
  color: var(--color-coral-500);
  background-color: var(--color-coral-50);
}

.nav-divider {
  color: var(--color-gray-300);
  font-size: var(--font-size-sm);
  padding: 0;
}

.navbar-actions {
  display: none;
}

@media (min-width: 768px) {
  .navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
  }
}

@media (min-width: 1024px) {
  .navbar-actions {
    gap: var(--spacing-4);
  }
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2);
  background: transparent;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.mobile-menu-btn:hover {
  background: var(--color-gray-50);
}

.mobile-menu-btn svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-gray-600);
}

.mobile-menu-btn .close-icon {
  display: none;
}

.mobile-menu-btn.active .hamburger-icon {
  display: none;
}

.mobile-menu-btn.active .close-icon {
  display: block;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 40;
  display: none;
  animation: fadeIn 0.2s ease;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu-content {
  background: white;
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.mobile-nav-link {
  padding: var(--spacing-3);
  color: var(--color-gray-600);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.mobile-nav-link:hover {
  background: var(--color-coral-50);
  color: var(--color-coral-500);
}

.mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-gray-100);
}

.mobile-menu-actions .btn {
  width: 100%;
  justify-content: center;
}

@media (min-width: 768px) {
  .mobile-menu {
    display: none !important;
  }
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  outline: none;
}

.btn-primary {
  background-color: var(--color-coral-500);
  color: var(--color-white);
  padding: 0.5rem 0.875rem;
  font-size: var(--font-size-sm);
}

@media (min-width: 640px) {
  .btn-primary {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-base);
  }
}

.btn-primary:hover {
  background-color: var(--color-coral-600);
}

.btn-primary:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-coral-200);
}

.btn-primary:active {
  background-color: var(--color-coral-700);
  transform: translateY(1px);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-coral-500);
  padding: 1rem 2rem;
}

.btn-secondary:hover {
  background-color: var(--color-gray-100);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
  padding: 1rem 2rem;
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-ghost {
  color: var(--color-gray-600);
  padding: 0.625rem 1rem;
  border: 1px solid transparent;
  transition: all var(--transition-base);
}

.btn-ghost:hover {
  color: var(--color-gray-900);
  background-color: var(--color-gray-50);
  border-color: var(--color-gray-100);
}

.btn-sm {
  display: none;
}

@media (min-width: 640px) {
  .btn-sm {
    display: block;
  }
}

/* ============================================================================
   FOOTER
   ============================================================================ */
.footer {
  background-color: var(--theme-footer-bg);
  color: var(--theme-footer-text);
  padding-top: var(--spacing-10);  /* More compact */
  padding-bottom: var(--spacing-10);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

@media (min-width: 480px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-column h4 {
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-2);
}

.footer-links a {
  color: var(--theme-footer-text);
  opacity: 0.7;
  transition: all var(--transition-base);
}

.footer-links a:hover {
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.footer-logo-icon {
  width: 2rem;
  height: 2rem;
  background-color: var(--color-coral-500);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-white);
}

.footer-logo-text {
  font-weight: var(--font-weight-bold);
}

.footer-copyright {
  color: var(--theme-footer-text);
  opacity: 0.7;
  font-size: var(--font-size-sm);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.footer-social a {
  color: var(--theme-footer-text);
  opacity: 0.7;
  transition: all var(--transition-base);
}

.footer-social a:hover {
  opacity: 1;
}

.footer-social svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* ============================================================================
   VIEW ALL LINK
   ============================================================================ */
.view-all-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-coral-500);
  font-weight: var(--font-weight-semibold);
  transition: color var(--transition-base);
}

.view-all-link:hover {
  color: var(--color-coral-600);
}

.view-all-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* ============================================================================
   BACKGROUND COLORS
   ============================================================================ */
.bg-white {
  background-color: var(--color-white);
}

.bg-gray-50 {
  background-color: var(--color-gray-50);
}

.bg-sandstone {
  background-color: var(--color-sandstone);
}

/* ============================================================================
   RESPONSIVE UTILITIES
   ============================================================================ */
.text-center {
  text-align: center;
}

.mt-12 {
  margin-top: var(--spacing-12);
}

.mb-4 {
  margin-bottom: var(--spacing-4);
}

/* ============================================================================
   FLOATING THEME BUTTON
   ============================================================================ */
.floating-theme-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--color-coral-500), var(--color-coral-600));
  color: white;
  border: none;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  z-index: 1000;
  animation: float 3s ease-in-out infinite;
}

.floating-theme-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

.floating-theme-btn:active {
  transform: scale(0.95);
}

.floating-theme-btn svg {
  width: 1.5rem;
  height: 1.5rem;
  animation: spin 4s linear infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Tooltip for floating button */
.floating-theme-btn::before {
  content: 'Customize Theme';
  position: absolute;
  right: 100%;
  margin-right: 1rem;
  background: var(--color-gray-900);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.floating-theme-btn:hover::before {
  opacity: 1;
}