/* Modern Luxury Spa Resort - CSS Styles */

/* CSS Custom Properties */
:root {
  --primary-color: #2E8B94;
  --secondary-color: #F5F5DC;
  --primary-dark: #1f5f66;
  --primary-light: #4aa7b3;
  --accent-gold: #D4AF37;
  --text-dark: #2c3e50;
  --text-light: #ffffff;
  --text-muted: #6c757d;
  --bg-light: #fafafa;
  --shadow-light: rgba(46, 139, 148, 0.1);
  --shadow-medium: rgba(46, 139, 148, 0.2);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 8px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

/* Base Styles & Typography */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
  scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--text-light);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--primary-color);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

p {
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
  line-height: 1.7;
}

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

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

.bg-primary-custom {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.bg-secondary-custom {
  background-color: var(--secondary-color);
  color: var(--text-dark);
}

/* Bootstrap 5 Overrides */
.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  padding: 0.75rem 2rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  text-transform: uppercase;
  font-size: 0.95rem;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
  padding: 0.75rem 2rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  text-transform: uppercase;
  font-size: 0.95rem;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}

.btn-gold {
  background-color: var(--accent-gold);
  border-color: var(--accent-gold);
  color: var(--text-dark);
  padding: 0.75rem 2rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  text-transform: uppercase;
  font-size: 0.95rem;
}

.btn-gold:hover {
  background-color: #b8941f;
  border-color: #b8941f;
  color: var(--text-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 175, 55, 0.3);
}

.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 20px var(--shadow-light);
  transition: var(--transition-smooth);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px var(--shadow-medium);
}

.form-control {
  border: 2px solid #e9ecef;
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(46, 139, 148, 0.25);
}

.form-control.is-invalid {
  border-color: #dc3545;
}

.form-control.is-valid {
  border-color: #28a745;
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
  box-shadow: 0 2px 20px var(--shadow-light);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 30px var(--shadow-medium);
}

.navbar-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  transition: var(--transition-smooth);
}

.navbar-brand:hover {
  color: var(--primary-dark);
  transform: scale(1.05);
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--text-dark);
  margin: 0 var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--primary-color);
  background-color: rgba(46, 139, 148, 0.1);
}

.navbar-nav .nav-link.active {
  color: var(--primary-color);
  font-weight: 600;
}

.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background-color: var(--accent-gold);
}

.navbar-toggler {
  border: none;
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* Hero Section */
.hero-section {
  position: relative;
  height: 100vh;
  background: linear-gradient(135deg, rgba(46, 139, 148, 0.8), rgba(46, 139, 148, 0.6)),
              url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23f5f5dc" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,117.3C1248,117,1344,139,1392,149.3L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-content {
  z-index: 2;
  max-width: 800px;
  padding: var(--spacing-lg);
  animation: heroFadeIn 1.5s ease-out;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, transparent 0%, rgba(46, 139, 148, 0.1) 100%);
  z-index: 1;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-lg);
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Sections */
.section-padding {
  padding: var(--spacing-xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-gold));
  border-radius: 2px;
}

/* Amenities Section */
.amenity-card {
  text-align: center;
  padding: var(--spacing-lg);
  height: 100%;
  transition: var(--transition-smooth);
}

.amenity-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  transition: var(--transition-smooth);
}

.amenity-card:hover .amenity-icon {
  transform: scale(1.1) rotateY(180deg);
  background: linear-gradient(135deg, var(--accent-gold), #b8941f);
}

.amenity-icon i {
  font-size: 2rem;
  color: var(--text-light);
}

/* Gallery */
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(46, 139, 148, 0.8), rgba(212, 175, 55, 0.6));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay h4 {
  color: var(--text-light);
  font-size: 1.5rem;
  text-align: center;
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay h4 {
  transform: translateY(0);
}

/* Contact Form */
.contact-form {
  background: var(--text-light);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 40px var(--shadow-light);
}

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

.form-floating label {
  color: var(--text-muted);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
  color: var(--text-light);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer h5 {
  color: var(--accent-gold);
  margin-bottom: var(--spacing-md);
}

.footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer a:hover {
  color: var(--accent-gold);
  transform: translateX(5px);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin-right: var(--spacing-sm);
  transition: var(--transition-smooth);
}

.social-links a:hover {
  background: var(--accent-gold);
  color: var(--text-dark);
  transform: translateY(-3px);
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--text-light);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  z-index: 1000;
  box-shadow: 0 4px 20px var(--shadow-medium);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background: var(--accent-gold);
  color: var(--text-dark);
  transform: translateY(-3px);
}

/* Loading Spinner */
.loading-spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--text-light);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: var(--spacing-sm);
}

/* Animations */
@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  .hero-section {
    height: 80vh;
    background-attachment: scroll;
  }
  
  .hero-content {
    padding: var(--spacing-md);
  }
  
  .section-padding {
    padding: var(--spacing-lg) 0;
  }
  
  .contact-form {
    padding: var(--spacing-lg);
  }
  
  .gallery-item img {
    height: 250px;
  }
  
  .navbar-nav {
    background: rgba(255, 255, 255, 0.98);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    box-shadow: 0 4px 20px var(--shadow-light);
  }
  
  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 576px) {
  .btn-primary,
  .btn-outline-primary,
  .btn-gold {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .amenity-icon {
    width: 60px;
    height: 60px;
  }
  
  .amenity-icon i {
    font-size: 1.5rem;
  }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .hero-section {
    background-size: cover;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
  }
  
  .scroll-to-top,
  .hero-section {
    background-attachment: scroll;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-light: #1a1a1a;
    --text-dark: #e0e0e0;
    --shadow-light: rgba(0, 0, 0, 0.2);
    --shadow-medium: rgba(0, 0, 0, 0.4);
  }
  
  .navbar {
    background: rgba(26, 26, 26, 0.95);
  }
  
  .card {
    background-color: #2d2d2d;
    color: var(--text-dark);
  }
  
  .contact-form {
    background: #2d2d2d;
  }
}