:root {
  --bg: #0c0e12;
  --bg-elevated: #141820;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eaef;
  --text-muted: #8b92a5;
  --accent: #6ee7b7;
  --accent-dim: rgba(110, 231, 183, 0.15);
  --radius: 12px;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

.quick-links {
  position: relative;
  z-index: 2;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 14, 18, 0.85);
  backdrop-filter: blur(10px);
}

.quick-links-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem 1rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.5rem 1.5rem;
  flex-wrap: wrap;
}

.quick-links-label {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.quick-links-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.quick-links-list a {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.04);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.quick-links-list a:hover {
  background: var(--accent-dim);
  border-color: rgba(110, 231, 183, 0.25);
  color: var(--accent);
}

.quick-links-list a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .quick-links-inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .quick-links-list {
    flex: 1;
    min-width: 0;
  }
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 70%);
  pointer-events: none;
}

.site-header {
  position: relative;
  z-index: 1;
  padding: 3rem 1.5rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 720px;
  margin: 0 auto;
}

.logo {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #e8eaef 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin: 0 0 1.75rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.search-wrap {
  max-width: 420px;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  border-color: rgba(110, 231, 183, 0.45);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.main {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.category {
  margin-bottom: 2.5rem;
}

.category.hidden {
  display: none;
}

.category-title {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card-list li.hidden {
  display: none;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.1rem;
  text-decoration: none;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.card:hover {
  border-color: rgba(110, 231, 183, 0.35);
  background: rgba(20, 24, 32, 0.95);
  transform: translateY(-2px);
}

.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 1rem;
  margin: 0;
}

.site-footer {
  position: relative;
  z-index: 1;
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.site-footer p {
  margin: 0;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 480px) {
  .site-header {
    padding: 2rem 1rem 1.5rem;
  }

  .main {
    padding: 1.5rem 1rem 3rem;
  }
}