/* Industrial Luxury Hotel Website CSS */
/* Mobile-first responsive design with Bootstrap 5 overrides */

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

:root {
  --primary-color: #2C3E50;
  --secondary-color: #E74C3C;
  --accent-color: #F39C12;
  --dark-gray: #34495E;
  --light-gray: #ECF0F1;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --text-light: #BDC3C7;
  --shadow: rgba(44, 62, 80, 0.1);
  --shadow-dark: rgba(44, 62, 80, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 8px;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Playfair Display', Georgia, serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--primary-color);
  background-color: var(--white);
  font-size: 16px;
  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;
  color: var(--primary-color);
}

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, 2.5rem);
}

p {
  margin-bottom: 1.5rem;
  color: var(--dark-gray);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* Links */
a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
}

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

/* Bootstrap 5 Overrides */
.container-fluid {
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container-fluid {
    padding: 0 2rem;
  }
}

/* Buttons */
.btn {
  font-family: var(--font-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius);
  padding: 1rem 2rem;
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  background-color: var(--dark-gray);
  border-color: var(--dark-gray);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-dark);
}

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

.btn-secondary:hover {
  background-color: #C0392B;
  border-color: #C0392B;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(231, 76, 60, 0.3);
}

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

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

/* Navigation */
.navbar {
  background-color: rgba(44, 62, 80, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  transition: var(--transition);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
  background-color: var(--primary-color);
  box-shadow: 0 2px 20px var(--shadow);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-secondary);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.navbar-nav .nav-link {
  color: var(--white);
  font-weight: 500;
  margin: 0 1rem;
  padding: 0.5rem 0;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

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

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 100%;
}

.navbar-nav .nav-link:hover {
  color: var(--secondary-color);
}

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

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

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

.mobile-menu-btn span {
  width: 100%;
  height: 3px;
  background-color: var(--white);
  transition: var(--transition);
  transform-origin: center;
}

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

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, rgba(44, 62, 80, 0.8), rgba(231, 76, 60, 0.6)),
              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="%23f0f0f0"/><circle cx="10" cy="10" r="1" fill="%23ddd"/></pattern></defs><rect width="100" height="100" fill="url(%23industrial)"/></svg>');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  position: relative;
}

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

.hero h1 {
  color: var(--white);
  margin-bottom: 2rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.3rem;
  color: var(--light-gray);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Industrial Elements */
.industrial-accent {
  position: relative;
}

.industrial-accent::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  background: linear-gradient(45deg, transparent 30%, var(--secondary-color) 30.5%, var(--secondary-color) 31%, transparent 31.5%);
  z-index: -1;
  opacity: 0.1;
}

/* Cards */
.card {
  background-color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 10px 30px var(--shadow);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-dark);
}

.card-header {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  padding: 1.5rem;
}

.card-body {
  padding: 2rem;
}

.card-title {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

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

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.1);
  background-color: var(--white);
}

.form-control.error {
  border-color: var(--secondary-color);
}

.form-group {
  margin-bottom: 1.5rem;
}

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

.error-message {
  color: var(--secondary-color);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  display: none;
}

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

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

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out;
}

.animate-fadeInLeft {
  animation: fadeInLeft 0.8s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--light-gray);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s linear infinite;
  margin-right: 10px;
}

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

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

.footer h5 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.footer p, .footer a {
  color: var(--text-light);
}

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

/* Utilities */
.bg-primary {
  background-color: var(--primary-color);
}

.bg-secondary {
  background-color: var(--secondary-color);
}

.text-primary {
  color: var(--primary-color);
}

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

/* Responsive Design */
@media (max-width: 767px) {
  .hero {
    background-attachment: scroll;
    padding: 2rem 0;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .navbar-nav {
    background-color: var(--primary-color);
    margin-top: 1rem;
    border-radius: var(--border-radius);
    padding: 1rem;
  }
  
  .navbar-nav .nav-link {
    margin: 0.5rem 0;
    text-align: center;
  }
}

@media (min-width: 768px) {
  .section {
    padding: 6rem 0;
  }
}

@media (min-width: 1200px) {
  .container-fluid {
    max-width: 1400px;
    margin: 0 auto;
  }
}