/* Modern Tech-Luxury Hotel Website CSS */

/* === CSS Variables === */
:root {
  --primary-color: #0A1A2E;
  --secondary-color: #00D4FF;
  --accent-color: #FF6B35;
  --text-primary: #FFFFFF;
  --text-secondary: #E5E5E5;
  --text-dark: #333333;
  --bg-dark: #0D1B2A;
  --bg-light: #F8F9FA;
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, #1B3A4B 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, #0099CC 100%);
  --shadow-light: 0 4px 15px rgba(0, 212, 255, 0.1);
  --shadow-dark: 0 8px 30px rgba(10, 26, 46, 0.3);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 12px;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Poppins', sans-serif;
}

/* === Base Styles === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

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

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

/* === Bootstrap Overrides === */
.container-fluid {
  padding-left: 1rem;
  padding-right: 1rem;
}

.btn {
  font-family: var(--font-secondary);
  font-weight: 500;
  border-radius: var(--border-radius);
  padding: 12px 30px;
  font-size: 1rem;
  border: none;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-light);
}

.btn-primary:hover {
  background: var(--gradient-secondary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
  color: var(--primary-color);
}

.btn-outline-primary {
  border: 2px solid var(--secondary-color);
  color: var(--secondary-color);
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--secondary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* === Navigation === */
.navbar {
  background: rgba(10, 26, 46, 0.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  padding: 1rem 0;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: var(--primary-color) !important;
  box-shadow: var(--shadow-dark);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-secondary);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary) !important;
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav .nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem !important;
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--secondary-color) !important;
  background: rgba(0, 212, 255, 0.1);
}

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

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

.navbar-toggler {
  border: none;
  padding: 0;
  width: 30px;
  height: 30px;
  position: relative;
}

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

.navbar-toggler span {
  display: block;
  background: var(--secondary-color);
  height: 3px;
  width: 100%;
  border-radius: 2px;
  margin: 5px 0;
  transition: var(--transition-smooth);
}

.navbar-toggler.collapsed span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggler.collapsed span:nth-child(2) {
  opacity: 0;
}

.navbar-toggler.collapsed span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* === Hero Section === */
.hero {
  height: 100vh;
  background: var(--gradient-primary);
  position: relative;
  display: flex;
  align-items: center;
  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="%2300D4FF" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
  opacity: 0.3;
}

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

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

.hero-subtitle {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-cta {
  margin-top: 2rem;
}

.hero-cta .btn {
  margin: 0 0.5rem 1rem;
}

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

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

.floating-shape:nth-child(2) {
  width: 150px;
  height: 150px;
  top: 60%;
  right: 10%;
  animation-delay: 2s;
}

.floating-shape:nth-child(3) {
  width: 80px;
  height: 80px;
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

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

.section-dark {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  width: 80px;
  height: 4px;
  background: var(--gradient-secondary);
  display: block;
  margin: 1rem auto;
  border-radius: 2px;
}

/* === Cards === */
.card {
  border: none;
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition-smooth);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 212, 255, 0.1);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-dark);
}

.card-img-top {
  transition: var(--transition-smooth);
}

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

.card-body {
  padding: 2rem;
}

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

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

/* === Forms === */
.form-control {
  border: 2px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  font-size: 1rem;
  transition: var(--transition-smooth);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.form-control:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
}

.form-control::placeholder {
  color: rgba(229, 229, 229, 0.7);
}

.form-label {
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.invalid-feedback {
  color: var(--accent-color);
  font-size: 0.875rem;
}

/* === Animations === */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-smooth);
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: var(--transition-smooth);
}

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

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: var(--transition-smooth);
}

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

/* === Loading Animation === */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 212, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--secondary-color);
  animation: spin 1s ease-in-out infinite;
}

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

/* === Footer === */
.footer {
  background: var(--primary-color);
  color: var(--text-secondary);
  padding: 3rem 0 1rem;
}

.footer h5 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

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

.footer-bottom {
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  margin-top: 2rem;
  padding-top: 2rem;
  text-align: center;
}

/* === Responsive Design === */
@media (max-width: 768px) {
  .hero {
    height: 80vh;
    padding: 2rem 0;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .navbar-collapse {
    background: rgba(10, 26, 46, 0.98);
    margin-top: 1rem;
    border-radius: var(--border-radius);
    padding: 1rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .btn {
    width: 100%;
    margin-bottom: 1rem;
  }
  
  .hero-cta .btn {
    margin: 0 0 1rem;
  }
}

@media (max-width: 576px) {
  .hero {
    height: 70vh;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .container-fluid {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
}

/* === Utility Classes === */
.text-gradient {
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 212, 255, 0.1);
}

.border-glow {
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.hover-lift {
  transition: var(--transition-smooth);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

/* === Custom Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #0099CC;
}

/* === Print Styles === */
@media print {
  .navbar,
  .hero,
  .floating-shape {
    display: none !important;
  }
  
  body {
    color: #000 !important;
    background: #fff !important;
  }
}