/* Hotel Modern Industrial Luxury - CSS */

/* CSS Custom Properties */
:root {
  --primary-color: #C8102E;
  --secondary-color: #F4F4F4;
  --dark-gray: #2C2C2C;
  --medium-gray: #4A4A4A;
  --light-gray: #E0E0E0;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --accent-gold: #D4AF37;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.2);
  --shadow-heavy: rgba(0, 0, 0, 0.3);
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  --border-radius: 0;
  --container-max-width: 1400px;
}

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

body {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--secondary-color);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
  font-size: 1.1rem;
  color: var(--medium-gray);
  margin-bottom: 1.5rem;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--medium-gray);
}

/* Bootstrap 5 Overrides */
.container {
  max-width: var(--container-max-width);
}

.btn {
  border-radius: var(--border-radius);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.875rem 2rem;
  font-size: 0.875rem;
  transition: all var(--transition-medium);
  border: 2px solid transparent;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--black);
  border-color: var(--black);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--shadow-medium);
}

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

.btn-light {
  background-color: var(--secondary-color);
  border-color: var(--light-gray);
  color: var(--dark-gray);
}

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

/* Cards */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 3px 20px var(--shadow-light);
  transition: all var(--transition-medium);
  overflow: hidden;
  background-color: var(--white);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 40px var(--shadow-medium);
}

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

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

/* Navigation */
.navbar {
  background-color: var(--white);
  box-shadow: 0 2px 10px var(--shadow-light);
  padding: 1rem 0;
  transition: all var(--transition-medium);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.navbar-nav .nav-link {
  color: var(--dark-gray);
  font-weight: 500;
  padding: 0.5rem 1rem;
  margin: 0 0.25rem;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
  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: all var(--transition-medium);
  transform: translateX(-50%);
}

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

/* Mobile Menu */
.navbar-toggler {
  border: none;
  padding: 0;
  background: transparent;
}

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

.hamburger {
  display: flex;
  flex-direction: column;
  width: 25px;
  height: 20px;
  justify-content: space-between;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--dark-gray);
  transition: all var(--transition-medium);
  transform-origin: center;
}

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

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

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

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(200,16,46,0.4) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="industrial" patternUnits="userSpaceOnUse" width="20" height="20"><rect width="20" height="20" fill="%23f4f4f4" opacity="0.05"/><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23industrial)"/></svg>');
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 800px;
  padding: 0 1rem;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  animation: fadeInUp 1s ease-out;
}

.hero .lead {
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
  font-size: 1.4rem;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .btn {
  animation: fadeInUp 1s ease-out 0.4s both;
  margin: 0 0.5rem 0.5rem 0;
}

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

.section-dark {
  background-color: var(--dark-gray);
  color: var(--white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--white);
}

.section-dark p {
  color: rgba(255,255,255,0.8);
}

.section-accent {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--black) 100%);
  color: var(--white);
}

.section-accent h2,
.section-accent h3,
.section-accent h4 {
  color: var(--white);
}

.section-accent p {
  color: rgba(255,255,255,0.9);
}

/* Features Grid */
.feature-item {
  text-align: center;
  padding: 2rem;
  transition: all var(--transition-medium);
  border-radius: var(--border-radius);
}

.feature-item:hover {
  transform: translateY(-10px);
  background-color: var(--white);
  box-shadow: 0 15px 40px var(--shadow-medium);
}

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

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

/* Room Cards */
.room-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  background-color: var(--white);
}

.room-card-img {
  position: relative;
  overflow: hidden;
  height: 300px;
}

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

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

.room-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(200,16,46,0.8) 0%, rgba(26,26,26,0.6) 100%);
  opacity: 0;
  transition: all var(--transition-medium);
  display: flex;
  align-items: center;
  justify-content: center;
}

.room-card:hover .room-card-overlay {
  opacity: 1;
}

.room-card-content {
  padding: 2rem;
}

.room-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

/* Forms */
.form-control {
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  padding: 0.875rem 1rem;
  font-size: 1rem;
  transition: all var(--transition-fast);
  background-color: var(--white);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(200, 16, 46, 0.1);
  background-color: var(--white);
}

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

.form-control.is-valid {
  border-color: #28a745;
}

.form-label {
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 0.5rem;
}

.invalid-feedback {
  display: block;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.valid-feedback {
  display: block;
  color: #28a745;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Footer */
.footer {
  background-color: var(--black);
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer h5 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

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

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

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

.social-icon {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.8);
  transition: all var(--transition-medium);
}

.social-icon:hover {
  border-color: var(--primary-color);
  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 fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 1s ease-out;
}

.fade-in-up {
  animation: fadeInUp 1s ease-out;
}

/* Scroll Animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

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

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

/* Responsive Design */
@media (max-width: 991.98px) {
  .hero {
    height: 70vh;
    min-height: 500px;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .navbar-collapse {
    background-color: var(--white);
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px var(--shadow-light);
  }
  
  .feature-item {
    margin-bottom: 2rem;
  }
}

@media (max-width: 767.98px) {
  .hero-content {
    padding: 0 1rem;
  }
  
  .hero .btn {
    width: 100%;
    margin: 0.5rem 0;
  }
  
  .room-card-content {
    padding: 1.5rem;
  }
  
  .footer {
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
}

@media (max-width: 575.98px) {
  .section {
    padding: 2rem 0;
  }
  
  .feature-item {
    padding: 1.5rem;
  }
  
  .room-card-img {
    height: 250px;
  }
}