/* ==========================================================================
   CSS VARIABLES & DESIGN SYSTEM (Centralized Theme Controls)
   ========================================================================== */
:root {
  /* Colors injected dynamically via JS or overridden here */
  --primary: #c5a059;
  --primary-dark: #a37f3a;
  --secondary: #1a1e21;
  --accent: #d96b43;
  --bg-dark: #0d0f11;
  --bg-surface: #14171a;
  --bg-card: #1c2025;
  --text-main: #f4f4f6;
  --text-muted: #9ca3af;
  --border-color: rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

  /* Spacing & Structure */
  --container-width: 1240px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Elevation & Shadows */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
  --glass-bg: rgba(20, 23, 26, 0.75);
  --glass-border: rgba(255, 255, 255, 0.1);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Accessible Focus Ring */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
}

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
}

/* Utility Containers */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-padding {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

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

/* Section Header */
.section-header {
  margin-bottom: 3.5rem;
  max-width: 650px;
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
}

.sub-title {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  line-height: 1.2;
  font-weight: 700;
}

.section-description {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.9rem 2rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #000;
  box-shadow: 0 4px 15px rgba(197, 160, 89, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(197, 160, 89, 0.4);
}

.btn-outline {
  border-color: var(--glass-border);
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(197, 160, 89, 0.08);
  transform: translateY(-2px);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  background-color: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-main);
}

.logo-sub {
  font-size: 0.65rem;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 0.5rem;
  background: transparent;
  aria-label: "Toggle Navigation Menu";
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 2rem);
  padding-bottom: 4rem;
  background: linear-gradient(to right, rgba(13, 15, 17, 0.92), rgba(13, 15, 17, 0.5)), var(--hero-image) center/cover no-repeat;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content .badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(197, 160, 89, 0.15);
  border: 1px solid rgba(197, 160, 89, 0.3);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.75rem;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Dynamic Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border-color);
}

.stat-card .stat-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-card .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CARD & GRID LAYOUTS
   ========================================================================== */
.services-grid, .menu-grid, .gallery-grid, .testimonials-grid {
  display: grid;
  gap: 2rem;
}

.services-grid {
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-md);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.service-features {
  list-style: none;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.service-features li {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: bold;
}

/* ==========================================================================
   INTERACTIVE MENU SECTION
   ========================================================================== */
.menu-filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
}

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

.menu-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.menu-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.menu-img-wrapper {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

.menu-card:hover .menu-img-wrapper img {
  transform: scale(1.08);
}

.menu-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.menu-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.menu-item-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.menu-item-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.menu-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.menu-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

/* ==========================================================================
   LIGHTBOX GALLERY
   ========================================================================== */
.gallery-grid {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

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

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

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

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.lightbox-modal.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 2.5rem;
  color: #fff;
  cursor: pointer;
}

/* ==========================================================================
   RESERVATIONS & FORM UI
   ========================================================================== */
.reservation-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
}

/* Notification Bar */
.form-feedback {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  display: none;
  font-weight: 500;
}

.form-feedback.success {
  display: block;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
}

.form-feedback.error {
  display: block;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* ==========================================================================
   FOOTER & FLOATING WHATSAPP
   ========================================================================== */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding-top: 5rem;
  padding-bottom: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: var(--shadow-md);
  z-index: 999;
  transition: transform var(--transition-fast);
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

/* Back To Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 6rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}