/* Modern Luxury Hotel Website - CSS */

/* CSS Variables for Theme Colors */
:root {
  --primary-color: #C41E3A;
  --secondary-color: #2C3E50;
  --primary-dark: #A11829;
  --secondary-dark: #1A252F;
  --light-gray: #F8F9FA;
  --medium-gray: #6C757D;
  --dark-gray: #343A40;
  --white: #FFFFFF;
  --gold: #D4AF37;
  --success: #28A745;
  --warning: #FFC107;
  --danger: #DC3545;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 8px 40px rgba(0, 0, 0, 0.2);
}

/* Global Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

p {
  margin-bottom: 1rem;
  color: var(--medium-gray);
  font-size: 1rem;
  line-height: 1.7;
}

/* Bootstrap 5 Overrides */
.btn {
  border-radius: 8px;
  font-weight: 500;
  padding: 0.75rem 2rem;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
}

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

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

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

.btn-secondary {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  color: var(--white);
}

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

/* Form Controls */
.form-control {
  border-radius: 8px;
  border: 2px solid #E9ECEF;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(196, 30, 58, 0.25);
}

.form-control.is-invalid {
  border-color: var(--danger);
}

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

.invalid-feedback {
  color: var(--danger);
  font-size: 0.85rem;
}

.valid-feedback {
  color: var(--success);
  font-size: 0.85rem;
}

/* Navigation */
.navbar {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-light);
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: var(--white);
  box-shadow: var(--shadow-medium);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

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

.navbar-nav .nav-link {
  color: var(--secondary-color);
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: var(--transition);
  position: relative;
}

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

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

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 80%;
}

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

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

.navbar-toggler-icon {
  width: 1.5em;
  height: 1.5em;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, rgba(44, 62, 80, 0.8), rgba(196, 30, 58, 0.8));
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Cards */
.card {
  border: none;
  border-radius: 15px;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
}

.card-img-top {
  transition: var(--transition);
  height: 250px;
  object-fit: cover;
}

.card:hover .card-img-top {
  transform: scale(1.05);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--secondary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--medium-gray);
  line-height: 1.6;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  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(--gold));
  border-radius: 2px;
}

/* Features */
.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--white);
  font-size: 2rem;
  transition: var(--transition);
}

.feature-item:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-medium);
}

/* Testimonials */
.testimonial {
  background-color: var(--light-gray);
  border-radius: 15px;
  padding: 2rem;
  text-align: center;
  position: relative;
  margin: 1rem 0;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 4rem;
  color: var(--primary-color);
  font-family: serif;
}

.testimonial-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 1rem auto;
  border: 4px solid var(--primary-color);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer h5 {
  color: var(--gold);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

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

.footer a:hover {
  color: var(--gold);
}

.footer-social {
  margin-top: 1rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  margin: 0 0.5rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.animate-on-scroll {
  opacity: 0;
  transition: var(--transition);
}

.animate-on-scroll.animated {
  animation-duration: 0.8s;
  animation-fill-mode: forwards;
}

.animate-on-scroll.fade-in-up {
  animation-name: fadeInUp;
}

.animate-on-scroll.fade-in-left {
  animation-name: fadeInLeft;
}

.animate-on-scroll.fade-in-right {
  animation-name: fadeInRight;
}

/* Loading States */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border: 2px solid var(--light-gray);
  border-top: 2px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 767.98px) {
  .section {
    padding: 3rem 0;
  }
  
  .hero {
    min-height: 80vh;
    padding: 2rem 0;
  }
  
  .btn {
    padding: 0.625rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .navbar-nav {
    text-align: center;
    padding: 1rem 0;
  }
  
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem;
  }
}

@media (max-width: 575.98px) {
  .hero p {
    font-size: 1.1rem;
  }
  
  .section-title {
    margin-bottom: 2rem;
  }
  
  .testimonial {
    padding: 1.5rem;
  }
  
  .feature-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
}

/* Utility Classes */
.text-primary {
  color: var(--primary-color);
}

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

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

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

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

.border-primary {
  border-color: var(--primary-color);
}

.border-secondary {
  border-color: var(--secondary-color);
}

/* 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: 0;
}

/* Focus States */
.btn:focus,
.form-control:focus,
.nav-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .navbar,
  .btn,
  .footer {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
}