:root {
  --bg: #f4f7ff;
  --card: rgba(255,255,255,0.95);
  --text: #102a43;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-soft: #dbeafe;
  --border: rgba(37, 99, 235, 0.15);
  --shadow: 0 20px 55px rgba(15, 23, 42, 0.1);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.16), transparent 28%),
    linear-gradient(135deg, #f8fbff 0%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
body::before,
body::after {
  content: "";
  position: fixed;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}
body::before {
  top: -80px;
  right: -50px;
  background: #60a5fa;
}
body::after {
  bottom: -100px;
  left: -80px;
  background: #93c5fd;
}
header {
  padding: 2rem 0 1rem;
  position: relative;
  z-index: 1;
}
.hero-header {
  text-align: center;
  padding: 1.4rem 1.5rem 1.6rem;
  border-radius: 1.75rem;
  background: linear-gradient(135deg, rgba(255,255,255,0.96), rgba(240,247,255,0.95));
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.8);
}
.hero-badge {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.hero-header h1 {
  margin: 0;
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}
.hero-header p {
  margin: 0.6rem 0 0;
  color: var(--muted);
  font-size: 1rem;
}
.hero-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1.1rem;
}
.highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(37, 99, 235, 0.12);
  text-align: left;
}
.highlight-card strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}
.highlight-card small {
  display: block;
  color: var(--muted);
  line-height: 1.35;
}
.highlight-icon {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.8rem;
  background: var(--primary-soft);
  font-size: 1rem;
  flex-shrink: 0;
}
.page-layout {
  padding: 1.5rem 0 2rem;
  position: relative;
  z-index: 1;
}
.page-card,
.sidebar-card,
.search-card {
  border: none;
  border-radius: 1.6rem;
  box-shadow: var(--shadow);
  background: var(--card);
  backdrop-filter: blur(10px);
}
.sidebar-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}
.sidebar-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), transparent 45%);
  pointer-events: none;
}
.sidebar-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 50px rgba(15, 23, 42, 0.12);
}
.sidebar-top {
  display: flex;
  justify-content: center;
  align-items: center;
}
.sidebar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(59, 130, 246, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.15);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.08);
}
.brand-icon {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 0.8rem;
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
}
.brand-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.03em;
}
.brand-subtitle {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.1rem;
}
.search-card {
  padding: 1rem 1.1rem;
}
#search {
  border-radius: 1.1rem;
  padding: 1rem 1.1rem 1rem 3.2rem;
  font-size: 1rem;
  min-height: 3.2rem;
  width: min(100%, 760px);
  background: linear-gradient(135deg, #ffffff, #f5f9ff);
  border: 1px solid rgba(37, 99, 235, 0.14);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06), inset 0 1px 2px rgba(255,255,255,0.7);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'%3E%3C/circle%3E%3Cpath d='m20 20-3.5-3.5'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 1rem center;
}
#search:focus {
  background: #ffffff;
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16), 0 10px 24px rgba(15, 23, 42, 0.08);
  outline: none;
}
#search::placeholder {
  color: #94a3b8;
}
.page-head {
  padding: 0.35rem 0.2rem 0.8rem 0.2rem;
  margin-bottom: 0.4rem;
  margin-right: 0.4rem;
  text-align: center;
}
.page-head h2 {
  margin: 0 0 0.45rem;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.2;
}
.page-head p {
  margin: 0 auto;
  max-width: 700px;
  color: var(--muted);
  font-size: 1rem;
}
.link.card {
  border: 1px solid var(--border);
  border-radius: 1.15rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
  text-decoration: none;
  color: inherit;
  display: block;
}
.link.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.12);
  border-color: rgba(37, 99, 235, 0.25);
  text-decoration: none;
}
.link.card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 0.22rem rgba(37, 99, 235, 0.24);
}
.link .card-body {
  padding: 1rem 1rem;
}
.label {
  font-size: 1rem;
  font-weight: 700;
  color: #102a43;
}
.note {
  color: #64748b;
  font-size: 0.92rem;
  margin-top: 0.5rem;
}
.group {
  margin-top: 1.35rem;
  padding: 1.2rem 1.25rem;
  border-radius: 1.3rem;
  background: linear-gradient(135deg, #f9fbff 0%, #eef5ff 100%);
  border: 1px solid rgba(37, 99, 235, 0.12);
}
.group[data-title="2026"] {
  background: linear-gradient(135deg, #f4f8ff 0%, #eaf2ff 100%);
}
.group[data-title="2025"] {
  background: linear-gradient(135deg, #f3f7ff 0%, #e8f1ff 100%);
}
.group-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}
.group-item {
  min-width: 0;
  background: transparent;
}
.group-item .link.card {
  min-height: 100%;
}
.group-item:hover .link.card {
  transform: translateY(-2px);
}
.group-item .label {
  color: var(--primary);
}
.group-item .note {
  color: #64748b;
}
.group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.group-header h3 {
  margin: 0;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}
.group-badge {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.42rem 0.8rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.sidebar-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: flex-start;
}
.nav-link {
  border-radius: 1rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
  color: #334155;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  text-align: center;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
}
.nav-link:hover {
  transform: translateX(2px);
  background: linear-gradient(135deg, #eef4ff, #e6f0ff);
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.12);
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.08);
}
.nav-link.active {
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  color: white;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
}
.footer {
  color: var(--muted);
  text-align: center;
  padding: 1.2rem 0 2rem;
  font-size: 0.95rem;
}
@media (max-width: 991px) {
  .group-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 767px) {
  .hero-header {
    padding: 1.15rem 1rem 1.3rem;
  }
  .hero-highlights {
    grid-template-columns: 1fr;
  }
  .group-grid {
    grid-template-columns: 1fr;
  }
  .page-layout {
    padding: 1rem 0 1.5rem;
  }
  .page-head h2 {
    font-size: 1.55rem;
  }
}