/* ===== VARIABLES ===== */
:root {
  --color-bg: #0a0f1a;
  --color-surface: #121929;
  --color-surface-raised: #1a2337;
  --color-border: #243049;
  --color-text: #e4e8f1;
  --color-text-muted: #8b95ad;
  --color-accent: #d4a843;
  --color-accent-hover: #e6bc5a;
  --color-accent-subtle: rgba(212, 168, 67, 0.12);
  --color-green: #2d9b5e;
  --color-red: #c0392b;
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --header-height: 64px;
  --radius: 8px;
  --radius-lg: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  white-space: nowrap;
}

.logo-icon { font-size: 1.4rem; }

.logo-text {
  background: linear-gradient(135deg, var(--color-accent), #f0d078);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: var(--radius);
  color: var(--color-text-muted);
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s;
}

.hamburger { position: relative; }

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 80px 24px 64px;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(212, 168, 67, 0.10) 0%, transparent 60%),
    linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-content {
  max-width: 720px;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.1;
  background: linear-gradient(135deg, #fff 30%, var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.hero-detail {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto;
}

/* ===== SECTIONS ===== */
.featured-section,
.categories-section,
.recent-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text);
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

/* ===== FEATURED CARD ===== */
.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.featured-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(212, 168, 67, 0.08);
}

.featured-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface-raised);
}

.featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.featured-card:hover .featured-image img {
  transform: scale(1.03);
}

.featured-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-surface-raised), var(--color-surface));
}

.card-flag {
  width: 60%;
  max-width: 200px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.featured-image-placeholder .card-icon {
  font-size: 4rem;
  opacity: 0.3;
}

.featured-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 8px;
}

.featured-subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.featured-excerpt {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.read-more {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent);
}

/* ===== CATEGORY CARDS (Home) ===== */
.category-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.category-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: border-color 0.25s, transform 0.2s, box-shadow 0.25s;
}

.category-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.category-card-icon {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 12px;
}

.category-card-flag {
  width: 48px;
  height: auto;
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  display: block;
  margin: 0 auto 12px;
}

.category-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.category-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ===== ARTICLE GRID ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.2s, box-shadow 0.25s;
}

.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-surface-raised);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.card:hover .card-image img {
  transform: scale(1.04);
}

.card-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-surface-raised), var(--color-surface));
}

.card-icon {
  font-size: 3rem;
  opacity: 0.25;
}

.card-body {
  padding: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.article-category {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 3px 10px;
  border-radius: 4px;
}

.article-date,
.card-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 8px;
}

.card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ===== CATEGORY PAGE ===== */
.category-page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.category-header {
  margin-bottom: 36px;
}

.category-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #fff 30%, var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.category-description {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 24px;
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* USMNT tool section */
.usmnt-tool-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 16px;
}

.usmnt-tool-section h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.usmnt-tool-section p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 28px;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.15s;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.section-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 32px 0;
}

/* ===== ARTICLE PAGE ===== */
.article {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.article-header {
  margin-bottom: 36px;
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 8px;
}

.article-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}

.article-hero {
  margin-top: 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article-hero img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

/* Article body typography */
.article-body {
  font-size: 1.08rem;
  line-height: 1.8;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 6px;
}

.article-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 12px 20px;
  margin: 24px 0;
  background: var(--color-accent-subtle);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.article-body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body a:hover {
  color: var(--color-accent-hover);
}

.article-body img {
  border-radius: var(--radius);
  margin: 24px 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
}

.article-body th,
.article-body td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.article-body th {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.8px;
  color: var(--color-accent);
  background: var(--color-surface);
}

.article-body tr:hover td {
  background: var(--color-surface);
}

/* Article nav */
.article-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.article-nav-link {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, background 0.2s;
  max-width: 48%;
}

.article-nav-link:hover {
  border-color: var(--color-accent);
  background: var(--color-surface);
}

.article-nav-link.next { text-align: right; margin-left: auto; }

.nav-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.nav-title {
  display: block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 48px 24px 32px;
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.footer-brand .logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 8px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.footer-nav a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

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

.footer-copy {
  grid-column: 1 / -1;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .menu-toggle { display: block; }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px 20px;
    gap: 0;
  }

  .site-nav.open { display: flex; }

  .nav-link {
    padding: 12px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

  .nav-link:last-child { border-bottom: none; }

  .hero { padding: 48px 24px 40px; }

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

  .featured-body { padding: 24px; }

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

  .category-cards {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .article-nav {
    flex-direction: column;
  }

  .article-nav-link { max-width: 100%; }
  .article-nav-link.next { text-align: left; }
}

@media (max-width: 480px) {
  .category-cards {
    grid-template-columns: 1fr;
  }
}