:root {
  --bg-color: #020617;
  --bg-secondary: #0f172a;
  --glass: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.15);
  
  --aqua: #22d3ee;
  --blue: #38bdf8;
  --emerald: #10b981;
  --coral: #fb7185;
  --gold: #eab308;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  
  --gradient-main: linear-gradient(135deg, var(--aqua), var(--blue), var(--emerald));
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

ul {
  list-style: none;
}

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

/* Utilities */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 100px;
}

.section {
  padding: 100px 0;
}

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

.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }

/* Glassmorphism */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(34, 211, 238, 0.15);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  text-align: center;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
}

.btn-secondary {
  background: var(--glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-3px);
}

/* Header */
.header {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1320px;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 50px;
  z-index: 1000;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.header.scrolled {
  top: 0;
  width: 100%;
  border-radius: 0;
  border-top: none;
  border-left: none;
  border-right: none;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a:hover {
  color: var(--aqua);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Unsplash descriptive backgrounds via css variables or inline styles in HTML, but defined default here */
.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-image: url('images/photo-1582610116397-edb318620f90-hero-hero-bg.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to bottom, rgba(2,6,23,0.3), var(--bg-color));
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  z-index: 1;
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  animation: fadeUp 1s ease;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  animation: fadeUp 1s ease 0.2s backwards;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  animation: fadeUp 1s ease 0.4s backwards;
}

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }

/* Room / Card Image */
.card-image-wrap {
  width: 100%;
  height: 250px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.glass-card:hover .card-image-wrap img {
  transform: scale(1.05);
}

.price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--emerald);
  margin: 1rem 0;
}

/* Booking System */
.booking-form {
  max-width: 800px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.form-control {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: var(--aqua);
}

.form-control option {
  background: var(--bg-secondary);
  color: var(--text-main);
}

.booking-summary {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--emerald);
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  margin-top: 2rem;
  text-align: center;
}

.booking-summary h3 {
  color: var(--emerald);
}

/* Page Header */
.page-header {
  padding: 180px 0 80px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 3rem;
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  margin-bottom: 1.5rem;
  color: var(--aqua);
}

.footer-col ul li {
  margin-bottom: 0.8rem;
}

.footer-col ul li a {
  color: var(--text-muted);
}

.footer-col ul li a:hover {
  color: var(--text-main);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

/* Custom Popup */
.popup-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(2,6,23,0.8);
  backdrop-filter: blur(5px);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 2000;
}

.popup-content {
  max-width: 400px;
  text-align: center;
}

/* Testimonials Slider */
.testimonial-slider {
  position: relative;
  overflow: hidden;
  padding: 2rem 0;
}

.testimonial-track {
  display: flex;
  transition: transform 0.5s ease;
}

.testimonial-slide {
  min-width: 100%;
  padding: 0 1rem;
}

/* Legal content */
.legal-content h2 { margin-top: 2rem; margin-bottom: 1rem; color: var(--aqua); }
.legal-content p { margin-bottom: 1rem; color: var(--text-muted); }

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

/* Responsive */
@media (max-width: 1024px) {
  .container { padding: 0 70px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .container { padding: 0 50px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .header { padding: 1rem; border-radius: 20px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    padding: 2rem;
    flex-direction: column;
    text-align: center;
    border-radius: 0 0 20px 20px;
    border: 1px solid var(--border);
  }
  .nav-links.active { display: flex; }
  .mobile-menu-btn { display: block; }
  .header .btn-primary { display: none; }
  .hero-content h1 { font-size: 2.5rem; }
  .hero-buttons { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
}