/* ==========================================
   Antique Time Clocks - Main Stylesheet
   Clean, Simple, Modern Design
   ========================================== */

/* ===== CSS Variables ===== */
:root {
  /* Colors - Rich Antique-Inspired Palette */
  --primary-color: #1a2332;
  --secondary-color: #8b2635;
  --accent-color: #d4a574;
  --accent-gold: #c9a961;
  --accent-burgundy: #6d1f2a;
  --text-color: #2d2d2d;
  --text-light: #5a5a5a;
  --bg-color: #ffffff;
  --bg-light: #faf8f5;
  --bg-cream: #f5f1eb;
  --border-color: #ddd5cc;
  --shadow: rgba(0, 0, 0, 0.15);
  --shadow-hover: rgba(139, 38, 53, 0.2);

  /* Typography */
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: Georgia, 'Times New Roman', serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;

  /* Layout */
  --max-width: 1200px;
  --border-radius: 8px;
  --transition: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

h1 {
  font-size: 2.5rem;
  font-weight: 400;
}

h2 {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
}

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

a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

a:hover {
  color: var(--accent-burgundy);
}

p a, .card-description a {
  background: linear-gradient(to right, var(--accent-gold) 0%, var(--accent-gold) 100%);
  background-size: 0 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size 0.3s ease;
}

p a:hover, .card-description a:hover {
  background-size: 100% 2px;
}

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

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

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

/* ===== Header & Navigation ===== */
header {
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-cream) 100%);
  border-bottom: 2px solid var(--accent-gold);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 12px var(--shadow);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

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

.site-title {
  font-size: 1.5rem;
  font-family: var(--font-heading);
  color: var(--primary-color);
  margin: 0;
}

.site-title a {
  color: var(--primary-color);
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  margin: 0;
}

nav a {
  color: var(--text-color);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-gold), var(--secondary-color));
  transition: var(--transition);
  transform: translateX(-50%);
}

nav a:hover::before {
  width: 80%;
}

nav a:hover,
nav a.active {
  background-color: var(--bg-light);
  color: var(--secondary-color);
  transform: translateY(-2px);
}

nav a.active::before {
  width: 80%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary-color);
}

/* ===== Hero Section ===== */
.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  background: linear-gradient(135deg, #1a2332 0%, #2d1f2b 50%, #3d2635 100%);
  border-bottom: 3px solid var(--accent-gold);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(212, 165, 116, 0.1) 0%, transparent 70%);
  animation: heroGlow 8s ease-in-out infinite;
}

@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
  50% { transform: translate(10%, 10%) scale(1.1); opacity: 0.8; }
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  color: var(--accent-gold);
  position: relative;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  animation: fadeInDown 1s ease-out;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--bg-cream);
  font-style: italic;
  max-width: 800px;
  margin: 0 auto var(--spacing-md);
  position: relative;
  animation: fadeInUp 1s ease-out 0.3s both;
}

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

/* ===== Cards & Grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.card {
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition-slow);
  box-shadow: 0 4px 8px var(--shadow);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(212, 165, 116, 0.05) 100%);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 24px var(--shadow-hover);
  border-color: var(--accent-gold);
}

.card:hover::before {
  opacity: 1;
}

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
  transition: var(--transition-slow);
  filter: brightness(0.95);
}

.card:hover .card-image {
  transform: scale(1.08);
  filter: brightness(1) contrast(1.05);
}

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

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  color: var(--primary-color);
}

.card-description {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.5;
}

.card-meta {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-light);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-burgundy) 100%);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  text-align: center;
  box-shadow: 0 4px 12px rgba(139, 38, 53, 0.3);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

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

.btn:hover {
  background: linear-gradient(135deg, var(--accent-burgundy) 0%, var(--secondary-color) 100%);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(139, 38, 53, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--secondary-color);
  border: 2px solid var(--secondary-color);
  box-shadow: 0 4px 12px rgba(139, 38, 53, 0.2);
}

.btn-secondary::before {
  background: linear-gradient(90deg, transparent, rgba(139, 38, 53, 0.1), transparent);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-burgundy) 100%);
  color: white;
  border-color: var(--accent-burgundy);
}

/* ===== Content Sections ===== */
.objectives-list,
.features-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-md) 0;
}

.objectives-list li,
.features-list li {
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  border-left: 4px solid var(--accent-gold);
  padding-left: var(--spacing-md);
  background: linear-gradient(90deg, var(--bg-cream) 0%, var(--bg-light) 100%);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  transition: var(--transition);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.objectives-list li:hover,
.features-list li:hover {
  border-left-color: var(--secondary-color);
  transform: translateX(8px);
  box-shadow: 0 4px 12px rgba(139, 38, 53, 0.15);
}

/* ===== Gallery ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

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

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

.gallery-item:hover img {
  transform: scale(1.05);
}

/* ===== Detail Pages ===== */
.detail-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.detail-image {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px var(--shadow);
}

.detail-info h3 {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* ===== Footer ===== */
footer {
  background-color: #f8f9fa;
  color: #000000;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  text-align: center;
  border-top: 1px solid var(--border-color);
}

footer a {
  color: #000000;
  text-decoration: underline;
}

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

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ===== Utilities ===== */
.text-center {
  text-align: center;
}

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ===== Scroll Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm);
    box-shadow: 0 4px 8px var(--shadow);
  }

  nav ul.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .card-image {
    height: 200px;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

/* ===== Print Styles ===== */
@media print {
  header,
  footer,
  nav,
  .btn {
    display: none;
  }

  body {
    color: black;
    background: white;
  }

  a {
    text-decoration: underline;
  }
}