:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f7f8fa;
  --bg-tertiary: #eef0f4;
  --bg-card: #ffffff;
  --accent-primary: #1a3c5e;
  --accent-secondary: #2a6496;
  --accent-gold: #c8942a;
  --accent-gold-light: #f5edd6;
  --text-primary: #1e2a3a;
  --text-secondary: #5a6a7a;
  --text-muted: #94a3b8;
  --border-color: #e2e6ec;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* NAV */
.landing-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.nav-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 2px;
  color: var(--accent-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: 0.3s;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s;
}

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

.nav-link.active {
  color: var(--accent-primary);
  font-weight: 600;
}

/* HERO SLIDER */
.hero-slider {
  position: relative;
  margin-top: 68px;
  width: 100%;
  height: 500px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.slider-container {
  width: 100%;
  height: 100%;
  display: flex;
  transition: transform 0.5s ease;
}

.slider-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slider-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 40px;
  background: linear-gradient(transparent, rgba(0,0,0,0.65));
}

.slider-overlay h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.5rem;
  letter-spacing: 2px;
  color: #ffffff;
  margin-bottom: 8px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.slider-overlay p {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.85);
  color: var(--accent-primary);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.6rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  box-shadow: var(--shadow-md);
}

.slider-btn:hover {
  background: #ffffff;
  box-shadow: var(--shadow-lg);
}

.slider-prev { left: 16px; }
.slider-next { right: 16px; }

.slider-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.slider-dot.active {
  background: #ffffff;
  transform: scale(1.2);
}

.slider-loading, .slider-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ANNOUNCEMENTS */
.announcements-section {
  padding: 72px 0;
  background: var(--bg-secondary);
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  letter-spacing: 3px;
  color: var(--accent-primary);
  text-align: center;
  margin-bottom: 48px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--accent-gold);
  margin: 14px auto 0;
  border-radius: 2px;
}

.announcements-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.announcement-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px;
  transition: box-shadow 0.2s, transform 0.2s;
  box-shadow: var(--shadow-sm);
}

.announcement-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.announcement-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.announcement-date {
  font-size: 0.8rem;
  color: var(--accent-gold);
  font-weight: 500;
  margin-bottom: 12px;
}

.announcement-content {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.loading-text {
  text-align: center;
  color: var(--text-muted);
  grid-column: 1 / -1;
}

.empty-text {
  text-align: center;
  color: var(--text-muted);
  grid-column: 1 / -1;
  padding: 40px 0;
}

/* FOOTER */
.landing-footer {
  border-top: 1px solid var(--border-color);
  padding: 36px 0;
  background: var(--bg-primary);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.footer-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  opacity: 0.6;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

.footer-developer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  margin-top: 20px;
}

.footer-developer a {
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

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

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
  }

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

  .hero-slider {
    height: 300px;
  }

  .slider-overlay h2 {
    font-size: 1.6rem;
  }

  .slider-overlay {
    padding: 24px;
  }

  .announcements-section {
    padding: 48px 0;
  }

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

  .footer-container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}