/* ==========================================
   RESTAURANT WEBSITE - DESIGN SYSTEM
   ========================================== */

/* CSS Custom Properties */
:root {
  /* Colors - Indian-Inspired Theme */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
  --color-bg-card: rgba(30, 30, 30, 0.8);
  --color-bg-glass: rgba(255, 255, 255, 0.05);
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #b8b8b8;
  --color-text-muted: #808080;
  
  /* Saffron/Orange accent - inspired by Indian flag */
  --color-accent-primary: #FF6B35;
  --color-accent-primary-light: #FF8C5A;
  --color-accent-primary-dark: #E8541E;
  
  /* Deep green secondary - inspired by Indian spices and flag */
  --color-accent-secondary: #047857;
  --color-accent-secondary-light: #059669;
  
  /* Warm terracotta */
  --color-accent-tertiary: #E07A5F;
  
  /* Keep gold for special touches */
  --color-accent-gold: #d4af37;
  --color-accent-gold-light: #f4cf5f;
  --color-accent-gold-dark: #b8941f;
  
  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-base: 1.125rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-2xl: 3rem;
  --font-size-3xl: 4rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Effects */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  
  --blur-sm: 10px;
  --blur-md: 20px;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-2xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.text-accent {
  color: var(--color-accent-gold);
}

/* ==========================================
   LAYOUT UTILITIES
   ========================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

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

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-secondary), var(--color-accent-primary), var(--color-accent-secondary));
  margin: var(--spacing-md) auto 0;
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(var(--blur-sm));
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
}

.header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  color: var(--color-accent-primary);
  font-weight: 700;
}

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

.nav-link {
  position: relative;
  padding: var(--spacing-xs) 0;
  transition: var(--transition-fast);
  cursor: pointer;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-primary);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-accent-primary);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-fast);
}

/* ==========================================
   HERO SECTION
   ========================================== */

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.4),
    rgba(10, 10, 10, 0.8)
  );
  z-index: -1;
}

.hero-content {
  text-align: center;
  z-index: 1;
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-heading);
  font-style: italic;
}

.hero-cta {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-tertiary));
  color: var(--color-bg-primary);
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.hero-cta:hover {
  background: linear-gradient(135deg, var(--color-accent-primary-light), var(--color-accent-tertiary));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

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

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

.about-text {
  animation: fadeInLeft 0.8s ease;
}

.about-text p {
  font-size: var(--font-size-base);
  line-height: 1.8;
}

.about-image {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: fadeInRight 0.8s ease;
}

.about-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

/* ==========================================
   MENU SECTION
   ========================================== */

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

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

.menu-category-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-bg-glass);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  backdrop-filter: blur(var(--blur-sm));
}

.menu-category-btn:hover,
.menu-category-btn.active {
  background: var(--color-accent-primary);
  color: var(--color-bg-primary);
  border-color: var(--color-accent-primary);
}

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

.menu-item {
  background: var(--color-bg-card);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  backdrop-filter: blur(var(--blur-md));
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-normal);
  opacity: 0;
  animation: fadeInUp 0.5s ease forwards;
}

.menu-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-primary);
}

.menu-item-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.menu-item-content {
  padding: var(--spacing-md);
}

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

.menu-item-name {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
}

.menu-item-price {
  font-weight: 600;
  color: var(--color-accent-primary);
  font-size: var(--font-size-base);
}

.menu-item-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================
   GALLERY SECTION
   ========================================== */

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

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-sm);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  aspect-ratio: 1;
  cursor: pointer;
}

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

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

.gallery-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
  opacity: 0;
  transition: var(--transition-normal);
}

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

/* ==========================================
   CONTACT SECTION
   ========================================== */

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--color-bg-glass);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(var(--blur-sm));
  transition: var(--transition-fast);
}

.contact-item:hover {
  border-color: var(--color-accent-primary);
  transform: translateX(5px);
}

.contact-icon {
  font-size: var(--font-size-lg);
  color: var(--color-accent-primary);
  min-width: 30px;
}

.contact-details h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
}

.contact-details p {
  margin: 0;
  font-size: var(--font-size-sm);
}

.contact-map {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  height: 400px;
  background: var(--color-bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  display: block;
  margin-bottom: var(--spacing-xs);
  transition: var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-accent-primary);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ==========================================
   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 fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 968px) {
  :root {
    --font-size-3xl: 3rem;
    --font-size-2xl: 2.5rem;
    --spacing-xl: 4rem;
  }
  
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .menu-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(var(--blur-md));
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 3rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .menu-item-header {
    flex-direction: column;
    align-items: flex-start;
  }
}