/* CSS Design System - Obsidian & Gold Premium Theme */

:root {
  --bg-primary: #0b0c10;
  --bg-secondary: #13161c;
  --bg-tertiary: #1f232b;
  --accent-gold: #c9a84c;
  --accent-gold-hover: #e6c875;
  --accent-gold-gradient: linear-gradient(135deg, #c9a84c 0%, #f1df9c 50%, #9e7b28 100%);
  --text-primary: #f5f6f8;
  --text-secondary: #a0a5b5;
  --text-muted: #626875;
  --border-color: rgba(201, 168, 76, 0.15);
  --border-color-hover: rgba(201, 168, 76, 0.4);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 15px rgba(201, 168, 76, 0.15);
  --font-sans: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --border-radius: 12px;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.02em;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: var(--transition);
}

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

/* Navigation Header */
header {
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(19, 22, 28, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold-gradient);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

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

.nav-links a.active {
  color: var(--accent-gold);
}

/* Hero Section */
.hero {
  padding: 6rem 2rem 4rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #cccccc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(201, 168, 76, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--accent-gold);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

/* Grid & Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-gold);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--border-color-hover);
}

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

.card-image-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.card-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.card-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.card-category {
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.card-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.card-link svg {
  transition: var(--transition);
}

.card:hover .card-link svg {
  transform: translateX(4px);
}

/* Article Detail View */
.article-header {
  max-width: 900px;
  margin: 4rem auto 2rem;
  padding: 0 2rem;
  text-align: center;
}

.article-title {
  font-size: 3rem;
  line-height: 1.2;
  margin: 1.5rem 0;
}

.article-hero-image {
  max-width: 1000px;
  margin: 0 auto 3rem;
  width: 90%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.article-hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.article-body {
  max-width: 750px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.article-body h2 {
  font-size: 2rem;
  margin: 2.5rem 0 1rem;
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: 1.5rem;
}

/* Buttons & Inputs */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--accent-gold-gradient);
  color: var(--bg-primary) !important;
  font-weight: 600;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
  opacity: 0.9;
}

/* Footer */
footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer p {
  margin-bottom: 1rem;
}

/* Media Queries */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  .article-title {
    font-size: 2.25rem;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}