/* ========================================
   Bluebirds Homestay - Premium Design System
   ======================================== */

/* ========================================
   CSS Variables
   ======================================== */

:root {
  /* Colors - Premium Palette */
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --accent: #d97706;
  --accent-light: #f59e0b;

  /* Neutrals */
  --dark: #0f172a;
  --dark-secondary: #1e293b;
  --dark-tertiary: #334155;
  --light: #f8fafc;
  --light-secondary: #e2e8f0;
  --white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-warm: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-cool: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.9) 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Typography - Booking.com Font Stack */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-base);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

input,
textarea,
select {
  font-family: inherit;
  border: none;
  outline: none;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--gradient-cool);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  position: relative;
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  transition: var(--transition-base);
}

.nav-links a.login-link {
  background: var(--primary-gradient);
  padding: 8px 18px;
  border-radius: 10px;
  color: var(--white);
  margin-left: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.2);
}

.nav-links a.login-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
  color: var(--white);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-cool);
  transition: var(--transition-base);
}

.nav-links a:hover::after {
  width: 100%;
}

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

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: transparent;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-dark);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 50%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-xl);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-cool);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.25rem;
  color: var(--light-secondary);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 1s ease 0.2s both;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cta-button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--gradient-cool);
  color: var(--white);
  font-weight: 600;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  animation: fadeInUp 1s ease 0.4s both;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* ========================================
   Booking Form Section
   ======================================== */

.booking-section {
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: var(--dark-secondary);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  background: var(--gradient-cool);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.booking-form {
  max-width: 700px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
}

.form-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--light-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.required {
  color: #f59e0b;
  font-size: 0.9rem;
}

.form-group input,
.form-group select {
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 1rem;
  transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus {
  border-color: rgba(79, 172, 254, 0.5);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 4px rgba(79, 172, 254, 0.1);
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.date-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.submit-button {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--gradient-cool);
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
  transition: var(--transition-base);
  box-shadow: var(--shadow-lg);
  width: 100%;
}

.submit-button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.submit-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ========================================
   Modal
   ======================================== */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal-content {
  background: var(--dark-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  max-width: 500px;
  width: 100%;
  position: relative;
  animation: slideIn 0.3s ease;
  box-shadow: var(--shadow-xl);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-base);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.modal-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: var(--gradient-cool);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.modal h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.modal p {
  text-align: center;
  color: var(--light-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xs);
}

.emergency-contact {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-top: var(--spacing-lg);
  text-align: center;
}

.emergency-contact strong {
  color: var(--accent-light);
  font-size: 1.1rem;
}

/* ========================================
   Room Grid
   ======================================== */

.rooms-section {
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: var(--dark);
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.room-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
  cursor: pointer;
}

.room-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(79, 172, 254, 0.3);
}

.room-image {
  position: relative;
  width: 100%;
  height: 280px;
  overflow: hidden;
}

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

.room-card:hover .room-image img {
  transform: scale(1.1);
}

.room-number {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--gradient-cool);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
}

.room-details {
  padding: var(--spacing-lg);
  min-height: 250px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.room-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.room-dimensions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  border-left: 3px solid rgba(79, 172, 254, 0.5);
}

.dimension-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.dimension-label {
  font-size: 0.75rem;
  color: var(--light-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dimension-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.amenities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.amenity-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--light-secondary);
  font-size: 0.95rem;
}

.amenity-icon {
  color: var(--accent-light);
}

.room-price {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--gradient-cool);
  border-radius: var(--radius-md);
  text-align: center;
}

.price-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.price-amount {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--white);
  font-family: var(--font-display);
}

.price-period {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
}

/* ========================================
   Gallery Modal
   ======================================== */

.gallery-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3000;
  background: rgba(0, 0, 0, 0.95);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.gallery-modal.active {
  display: flex;
}

.gallery-content {
  max-width: 1000px;
  width: 100%;
  position: relative;
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.gallery-title {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 600;
}

.gallery-counter {
  color: var(--light-secondary);
  font-size: 1rem;
}

.gallery-image-container {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.gallery-image {
  width: 100%;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  display: block;
  background: var(--dark);
}

.gallery-category {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 500;
}

.gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  color: var(--white);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-base);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.gallery-nav:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.1);
}

.gallery-nav.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.gallery-prev {
  left: -70px;
}

.gallery-next {
  right: -70px;
}

.gallery-thumbnails {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  overflow-x: auto;
  padding: var(--spacing-sm) 0;
}

.gallery-thumb {
  flex-shrink: 0;
  width: 80px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.5;
  transition: var(--transition-base);
  border: 2px solid transparent;
}

.gallery-thumb:hover {
  opacity: 0.8;
}

.gallery-thumb.active {
  opacity: 1;
  border-color: var(--primary-light);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-close {
  position: absolute;
  top: -60px;
  right: 0;
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-base);
}

.gallery-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

/* ========================================
   Footer
   ======================================== */

.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
}

.footer p {
  color: var(--light-secondary);
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

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

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links.active {
    display: flex;
  }

  /* MOBILE FIX: Prevent form overflow */
  .booking-section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .booking-form {
    padding: var(--spacing-lg) var(--spacing-md);
    margin: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .form-grid {
    width: 100%;
    box-sizing: border-box;
  }

  .form-group {
    width: 100%;
    box-sizing: border-box;
  }

  .form-group input,
  .form-group select {
    width: 100%;
    box-sizing: border-box;
    font-size: 16px;
  }

  .date-grid {
    grid-template-columns: 1fr;
  }

  .rooms-grid {
    grid-template-columns: 1fr;
  }

  .hero-content {
    padding: var(--spacing-lg);
  }

  .booking-form {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .amenities {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Utility Classes
   ======================================== */

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

.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}