/* ===================================
   MODERN RESTAURANT WEBSITE - CSS
   Premium Design System
   =================================== */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Colors */
  --color-primary: #8B1538;
  --color-primary-dark: #6B0F2A;
  --color-primary-light: #A81D45;
  --color-secondary: #D4AF37;
  --color-secondary-dark: #B8962F;
  --color-accent: #2D5D4D;
  --color-accent-light: #3A7A66;
  
  --color-charcoal: #2C2C2C;
  --color-charcoal-light: #3D3D3D;
  --color-cream: #F5F5DC;
  --color-cream-dark: #E8E8D0;
  --color-white: #FFFFFF;
  --color-black: #0A0A0A;
  
  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  
  --font-size-h1: clamp(2.5rem, 5vw, 4.5rem);
  --font-size-h2: clamp(2rem, 4vw, 3.5rem);
  --font-size-h3: clamp(1.5rem, 3vw, 2.5rem);
  --font-size-h4: clamp(1.25rem, 2.5vw, 1.75rem);
  --font-size-body: clamp(1rem, 1.5vw, 1.125rem);
  --font-size-small: clamp(0.875rem, 1.2vw, 1rem);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 8rem;
  
  /* Effects */
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --shadow-soft: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-hard: 0 20px 40px rgba(0, 0, 0, 0.25);
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(10px);
}

/* ===== RESET & BASE STYLES ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.7;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: var(--transition-smooth);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-charcoal);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: var(--font-size-body);
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transition: width 0.4s ease;
  z-index: -1;
}

.btn:hover::before {
  width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hard);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: var(--color-charcoal);
  box-shadow: var(--shadow-medium);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hard);
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: var(--transition-smooth);
}

.header.scrolled {
  background: rgba(44, 44, 44, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-medium);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  color: var(--color-secondary);
  font-size: 2.5rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-links a {
  color: var(--color-white);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-secondary);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  color: var(--color-white);
  font-size: 1.5rem;
  padding: 0.5rem;
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(139, 21, 56, 0.8), rgba(44, 44, 44, 0.7));
  z-index: 1;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 var(--spacing-md);
}

.hero-subtitle {
  font-size: var(--font-size-h4);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: 600;
}

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

.hero-description {
  font-size: var(--font-size-h4);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: pulse 2s infinite;
}

.scroll-indicator svg {
  width: 30px;
  height: 30px;
  color: var(--color-white);
}

/* ===== ABOUT SECTION ===== */
.about {
  background: var(--color-white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.about-image img {
  width: 100%;
  height: 600px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-image:hover img {
  transform: scale(1.05);
}

.about-text h2 {
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.about-text p {
  margin-bottom: var(--spacing-md);
  color: var(--color-charcoal-light);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-cream), var(--color-cream-dark));
  border-radius: 15px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.stat-number {
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: var(--font-size-small);
  color: var(--color-charcoal-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: var(--spacing-xs);
}

/* ===== MENU SECTION ===== */
.menu {
  background: linear-gradient(180deg, var(--color-cream), var(--color-white));
}

.menu-filters {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.75rem 2rem;
  background: var(--color-white);
  color: var(--color-charcoal);
  border: 2px solid var(--color-charcoal-light);
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition-smooth);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

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

.menu-item {
  background: var(--color-white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.menu-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hard);
}

.menu-item-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  position: relative;
}

.menu-item-content {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.menu-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
}

.menu-item-title {
  font-size: var(--font-size-h4);
  color: var(--color-charcoal);
  margin-bottom: 0.25rem;
}

.menu-item-price {
  font-size: var(--font-size-h4);
  color: var(--color-secondary);
  font-weight: 700;
  font-family: var(--font-heading);
}

.menu-item-description {
  color: var(--color-charcoal-light);
  font-size: var(--font-size-small);
  line-height: 1.6;
  flex: 1;
}

.menu-item-category {
  display: inline-block;
  margin-top: var(--spacing-sm);
  padding: 0.5rem 1rem;
  background: var(--color-cream);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== GALLERY SECTION ===== */
.gallery {
  background: var(--color-charcoal);
  color: var(--color-white);
}

.gallery .section-title {
  color: var(--color-white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 15px;
  aspect-ratio: 1;
  cursor: pointer;
  box-shadow: var(--shadow-medium);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(139, 21, 56, 0.7), rgba(212, 175, 55, 0.7));
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

.gallery-item:hover::before {
  opacity: 1;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  opacity: 0;
  transition: opacity 0.4s ease;
  text-align: center;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay-icon {
  font-size: 3rem;
  color: var(--color-white);
}

/* ===== CHEF SECTION ===== */
.chef {
  background: var(--color-white);
}

.chef-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.chef-image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.chef-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.chef-text h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.chef-name {
  font-size: var(--font-size-h3);
  color: var(--color-secondary);
  font-style: italic;
  margin-bottom: var(--spacing-md);
}

.chef-text p {
  margin-bottom: var(--spacing-md);
  color: var(--color-charcoal-light);
}

.chef-signature {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-primary);
  font-style: italic;
  margin-top: var(--spacing-md);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
}

.testimonials .section-title {
  color: var(--color-white);
}

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

.testimonial-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: var(--spacing-lg);
  transition: var(--transition-smooth);
  text-align: center;
}

.testimonial-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
}

.testimonial-rating {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
  color: var(--color-secondary);
}

.testimonial-text {
  font-size: var(--font-size-body);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--color-cream);
}

.testimonial-author {
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.25rem;
}

.testimonial-role {
  font-size: var(--font-size-small);
  opacity: 0.8;
}

/* ===== RESERVATIONS SECTION ===== */
.reservations {
  background: var(--color-cream);
}

.reservation-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: 20px;
  box-shadow: var(--shadow-hard);
}

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

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

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 600;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 1rem;
  border: 2px solid var(--color-cream-dark);
  border-radius: 10px;
  font-family: inherit;
  font-size: var(--font-size-body);
  transition: var(--transition-smooth);
  background: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 21, 56, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  margin-top: var(--spacing-md);
}

.form-message {
  padding: 1rem;
  border-radius: 10px;
  margin-top: var(--spacing-md);
  text-align: center;
  font-weight: 600;
  display: none;
}

.form-message.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  display: block;
}

.form-message.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  display: block;
}

/* ===== CONTACT SECTION ===== */
.contact {
  background: var(--color-charcoal);
  color: var(--color-white);
}

.contact .section-title {
  color: var(--color-white);
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.contact-icon {
  font-size: 2rem;
  color: var(--color-secondary);
  min-width: 50px;
}

.contact-details h3 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
}

.contact-details p {
  color: var(--color-cream);
  line-height: 1.6;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
  font-size: 1.5rem;
  transition: var(--transition-smooth);
}

.social-link:hover {
  background: var(--color-secondary);
  color: var(--color-charcoal);
  transform: translateY(-5px);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--color-black);
  color: var(--color-cream);
  text-align: center;
  padding: var(--spacing-lg) 0;
}

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

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

.footer-links a {
  color: var(--color-secondary);
  transition: var(--transition-smooth);
}

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
  .about-content,
  .chef-content {
    grid-template-columns: 1fr;
  }
  
  .menu-grid {
    grid-template-columns: 1fr;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(44, 44, 44, 0.98);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-hard);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 640px) {
  :root { font-size: 14px; }
  
  .section { padding: var(--spacing-lg) 0; }
  
  .hero { height: 80vh; }
  
  .menu-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .reservation-container {
    padding: var(--spacing-md);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}