/* ============================================
   FRESNO/CLOVIS VISITORS BUREAU - MAIN STYLES
   ============================================ */

/* CSS VARIABLES - Design System */
:root {
  /* Primary Colors */
  --primary-blue: #0066CC;
  --primary-orange: #FF6B35;
  --primary-green: #2E7D32;
  
  /* Secondary Colors */
  --secondary-gold: #FFB300;
  --secondary-teal: #00897B;
  --secondary-burgundy: #8E24AA;
  
  /* Neutral Colors */
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --medium-gray: #9E9E9E;
  --dark-gray: #424242;
  --black: #212121;
  
  /* Accent Colors */
  --success: #4CAF50;
  --warning: #FF9800;
  --error: #F44336;
  --info: #2196F3;
  
  /* Spacing (8px grid system) */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;
  --spacing-xxxl: 80px;
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--primary-orange);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 48px;
  font-weight: 700;
}

h2 {
  font-size: 36px;
  font-weight: 600;
}

h3 {
  font-size: 28px;
  font-weight: 600;
}

h4 {
  font-size: 22px;
  font-weight: 600;
}

h5 {
  font-size: 18px;
  font-weight: 600;
}

h6 {
  font-size: 16px;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
}

small {
  font-size: 14px;
  line-height: 1.5;
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-xxxl) 0;
}

.section-sm {
  padding: var(--spacing-xl) 0;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

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

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

.nav-link {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-gray);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-orange);
  background-color: rgba(255, 107, 53, 0.1);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--dark-gray);
  cursor: pointer;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary-orange);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
  background-color: #E55A2B;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 107, 53, 0.4);
  color: var(--white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  padding: 14px 30px;
}

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

.btn-large {
  font-size: 20px;
  padding: 18px 40px;
}

.btn-small {
  font-size: 16px;
  padding: 12px 24px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.9), rgba(255, 107, 53, 0.8)),
              url('../images/hero/fresno-skyline.jpg') center/cover no-repeat;
  color: var(--white);
  text-align: center;
  padding: var(--spacing-xxxl) var(--spacing-sm);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--white);
  font-size: 56px;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
  font-size: 20px;
  margin-bottom: var(--spacing-lg);
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

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

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  height: 100%;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
}

.card-title {
  font-size: 22px;
  margin-bottom: var(--spacing-xs);
  color: var(--black);
}

.card-text {
  color: var(--dark-gray);
  margin-bottom: var(--spacing-sm);
}

.card-link {
  color: var(--primary-blue);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.card-link:hover {
  color: var(--primary-orange);
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--dark-gray);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--light-gray);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 16px;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-blue);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  color: var(--error);
  font-size: 14px;
  margin-top: var(--spacing-xs);
}

.form-success {
  color: var(--success);
  font-size: 14px;
  margin-top: var(--spacing-xs);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  font-size: 20px;
}

.footer-section p,
.footer-section a {
  color: var(--light-gray);
  font-size: 14px;
  line-height: 1.8;
}

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

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

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--medium-gray);
  font-size: 14px;
}

.footer-address {
  margin-top: var(--spacing-sm);
  line-height: 1.8;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }

.d-none {
  display: none;
}

.d-block {
  display: block;
}

.d-flex {
  display: flex;
}

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

.align-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Typography */
  h1 { font-size: 32px; }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }
  h4 { font-size: 18px; }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .hero p {
    font-size: 18px;
  }
  
  /* Layout */
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  /* Navigation */
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
  }
  
  .nav.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  /* Grid */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  /* Hero */
  .hero {
    min-height: 80vh;
    padding: var(--spacing-xl) var(--spacing-sm);
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  /* Buttons */
  .btn {
    width: 100%;
  }
  
  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 28px; }
  h2 { font-size: 24px; }
  
  .hero h1 {
    font-size: 28px;
  }
  
  .btn {
    font-size: 16px;
    padding: 12px 24px;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .header,
  .footer,
  .btn,
  .nav {
    display: none;
  }
  
  body {
    font-size: 12pt;
    color: #000;
  }
  
  a {
    text-decoration: underline;
  }
}