/* Modern Futuristic Luxury Hotel CSS */

/* Custom Properties */
:root {
  --primary-color: #1a237e;
  --secondary-color: #00e676;
  --primary-dark: #0d1555;
  --primary-light: #3949ab;
  --secondary-dark: #00c853;
  --secondary-light: #69f0ae;
  --dark-bg: #0a0e27;
  --light-bg: #f8f9fa;
  --text-light: #ffffff;
  --text-dark: #212529;
  --text-muted: #6c757d;
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
  --shadow-soft: 0 8px 32px rgba(26, 35, 126, 0.1);
  --shadow-hover: 0 16px 64px rgba(26, 35, 126, 0.2);
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--light-bg);
  overflow-x: hidden;
}

/* Bootstrap 5 Overrides */
.btn-primary {
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--border-radius);
  padding: 12px 32px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  background: var(--gradient-primary);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  border-radius: var(--border-radius);
  padding: 12px 32px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition);
}

.btn-outline-primary:hover {
  background: var(--gradient-primary);
  border-color: var(--primary-color);
  color: var(--text-light);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--gradient-secondary);
  border: none;
  border-radius: var(--border-radius);
  color: var(--text-dark);
}

.btn-secondary:hover {
  background: var(--gradient-secondary);
  color: var(--text-dark);
  transform: translateY(-2px);
}

.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  overflow: hidden;
}

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

.form-control {
  border: 2px solid #e9ecef;
  border-radius: var(--border-radius);
  padding: 12px 16px;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.2rem rgba(0, 230, 118, 0.25);
}

.navbar {
  backdrop-filter: blur(20px);
  background: rgba(26, 35, 126, 0.95);
  transition: var(--transition);
  padding: 16px 0;
}

.navbar-scrolled {
  background: rgba(26, 35, 126, 0.98);
  box-shadow: var(--shadow-soft);
  padding: 8px 0;
}

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

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  margin: 0 8px;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--secondary-color);
  background: rgba(0, 230, 118, 0.1);
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--secondary-color);
  transition: var(--transition);
  transform: translateX(-50%);
}

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

/* Hero Section */
.hero {
  height: 100vh;
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
  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 1000 1000"><polygon fill="%2300e676" fill-opacity="0.05" points="0,1000 1000,0 1000,1000"/></svg>');
  background-size: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  color: var(--text-light);
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 1s ease-out;
}

.hero p {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .btn {
  animation: fadeInUp 1s ease-out 0.4s both;
}

/* Floating Elements */
.floating-element {
  position: absolute;
  border-radius: 50%;
  background: var(--gradient-secondary);
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  width: 100px;
  height: 100px;
  top: 20%;
  right: 10%;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  width: 60px;
  height: 60px;
  bottom: 30%;
  left: 15%;
  animation-delay: 2s;
}

.floating-element:nth-child(3) {
  width: 80px;
  height: 80px;
  top: 60%;
  right: 30%;
  animation-delay: 4s;
}

/* Section Styles */
.section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 16px;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  width: 80px;
  height: 4px;
  background: var(--gradient-secondary);
  border-radius: 2px;
  transform: translateX(-50%);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 60px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Room Cards */
.room-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  height: 400px;
}

.room-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.room-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(26, 35, 126, 0.9));
  color: var(--text-light);
  padding: 32px 24px 24px;
  transform: translateY(20px);
  transition: var(--transition);
}

.room-card:hover .room-card-overlay {
  transform: translateY(0);
}

.room-card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.room-card-price {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 12px;
}

/* Amenities */
.amenity-item {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  background: white;
  box-shadow: var(--shadow-soft);
}

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

.amenity-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: var(--gradient-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary-color);
}

.amenity-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--primary-color);
}

/* Contact Form */
.contact-form {
  background: white;
  padding: 48px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 8px;
}

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

.error-message {
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 4px;
  display: none;
}

.form-control.error + .error-message {
  display: block;
}

/* Footer */
.footer {
  background: var(--dark-bg);
  color: var(--text-light);
  padding: 60px 0 20px;
}

.footer h5 {
  color: var(--secondary-color);
  font-weight: 600;
  margin-bottom: 24px;
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
}

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

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-link:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: var(--shadow-hover);
}

/* Mobile Menu */
.navbar-toggler {
  border: none;
  padding: 0;
  width: 32px;
  height: 32px;
  position: relative;
  background: transparent;
}

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

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-light);
  margin: 6px auto;
  transition: var(--transition);
  border-radius: 1px;
}

.navbar-toggler.active .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.navbar-toggler.active .hamburger:nth-child(2) {
  opacity: 0;
}

.navbar-toggler.active .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-20px) rotate(120deg);
  }
  66% {
    transform: translateY(10px) rotate(240deg);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.4);
  }
  70% {
    box-shadow: 0 0 0 20px rgba(0, 230, 118, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 230, 118, 0);
  }
}

/* Scroll Animations */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: all 0.8s ease-out;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition: all 0.8s ease-out;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 768px) {
  .navbar-collapse {
    background: rgba(26, 35, 126, 0.98);
    margin-top: 16px;
    border-radius: var(--border-radius);
    padding: 16px;
  }
  
  .hero {
    height: 100vh;
    padding: 0 16px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .contact-form {
    padding: 32px 24px;
  }
  
  .room-card {
    height: 300px;
    margin-bottom: 24px;
  }
  
  .amenity-item {
    margin-bottom: 24px;
  }
  
  .social-links {
    justify-content: center;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .btn {
    width: 100%;
    margin-bottom: 12px;
  }
  
  .contact-form {
    padding: 24px 16px;
  }
}

/* Loading Animation */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--secondary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}