/* Premiere School of Hotel Management - Main Styles */

/* ==================== CSS VARIABLES ==================== */
:root {
  /* Primary Colors - Green Theme to match logo */
  --primary-navy: #14532d;
  --primary-dark: #052e16;
  --primary-light: #22c55e;
  
  --accent-gold: #f59e0b;
  --accent-gold-dark: #d97706;
  --accent-gold-light: #fbbf24;
  
  --charcoal: #334155;
  --charcoal-light: #475569;
  --charcoal-dark: #0f172a;
  
  /* Neutral Colors */
  --off-white: #f8fafc;
  --white: #ffffff;
  --light-gray: #f1f5f9;
  --gray: #94a3b8;
  --dark-gray: #475569;
  
  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #06b6d4;
  
  /* Typography */
  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
  --shadow-xl: 0 12px 24px rgba(0,0,0,0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--charcoal);
  background-color: var(--off-white);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

h1 {
  font-size: 3rem;
  font-weight: 700;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

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

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--charcoal-light);
}

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

.text-gold {
  color: var(--accent-gold-dark);
}

.text-navy {
  color: var(--primary-navy);
}

/* ==================== LAYOUT ==================== */
.main-content {
  margin-top: 120px; /* Account for fixed header + announcement bar */
  min-height: calc(100vh - 120px);
}

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

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

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

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

/* Grid System */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -var(--spacing-sm);
  width: 100%;
  box-sizing: border-box;
}

.col {
  flex: 1;
  padding: 0 var(--spacing-sm);
  min-width: 0; /* Prevent flex overflow */
}

.col-2 {
  flex: 0 0 50%;
  padding: 0 var(--spacing-sm);
  min-width: 0;
  box-sizing: border-box;
}

.col-3 {
  flex: 0 0 33.333%;
  padding: 0 var(--spacing-sm);
  min-width: 0;
  box-sizing: border-box;
}

.col-4 {
  flex: 0 0 25%;
  padding: 0 var(--spacing-sm);
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  border: 2px solid transparent;
  font-size: 1rem;
  gap: var(--spacing-xs);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-dark));
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
  color: var(--charcoal);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--accent-gold-dark), var(--accent-gold));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--primary-navy);
  border-color: var(--primary-navy);
}

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

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
}

/* ==================== CARDS ==================== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid rgba(0,0,0,0.05);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-light));
  color: var(--white);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--light-gray);
  border-top: 1px solid rgba(0,0,0,0.1);
}

/* ==================== IMAGE PLACEHOLDERS ==================== */
.img-placeholder {
  background: linear-gradient(135deg, var(--light-gray), var(--gray));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark-gray);
  font-weight: 500;
  text-align: center;
  position: relative;
  min-height: 200px;
  border-radius: var(--radius-md);
}

.img-placeholder::before {
  content: "📷";
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
  display: block;
}

.img-placeholder-hero {
  min-height: 400px;
  background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-light) 100%);
  color: var(--white);
}

.img-placeholder-card {
  min-height: 250px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* ==================== FORMS ==================== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--charcoal);
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--gray);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition-normal);
  background: var(--white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-navy);
  box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.form-control.error {
  border-color: var(--error);
}

.form-control.success {
  border-color: var(--success);
}

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

.checkbox-group, .radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.checkbox-item, .radio-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* ==================== ALERTS ==================== */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid;
}

.alert-success {
  background: rgba(76, 175, 80, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(244, 67, 54, 0.1);
  border-color: var(--error);
  color: var(--error);
}

.alert-warning {
  background: rgba(255, 152, 0, 0.1);
  border-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background: rgba(33, 150, 243, 0.1);
  border-color: var(--info);
  color: var(--info);
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

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

/* ==================== UTILITIES ==================== */
.d-flex {
  display: flex;
}

.d-block {
  display: block;
}

.d-none {
  display: none;
}

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

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

.justify-between {
  justify-content: space-between;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

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

.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); }

.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); }

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.75rem; }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
}

@media (max-width: 768px) {
  .col-2, .col-3, .col-4 {
    flex: 0 0 100%;
  }
  
  .row {
    margin: 0;
  }
  
  .col, .col-2, .col-3, .col-4 {
    padding: 0;
    margin-bottom: var(--spacing-md);
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  
  .btn-lg {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-xs);
  }
  
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}