:root {
    --bg: #0d0f12;
    --bg-card: #161a20;
    --bg-card-hover: #1c2129;
    --border: #2a313c;
    --text: #e6e9ef;
    --text-muted: #8b92a0;
    --accent: #3b82f6;
    --accent-dim: #2563eb;
    --category-conflict: #dc2626;
    --category-aviation: #0ea5e9;
    --category-maritime: #06b6d4;
    --category-satellite: #8b5cf6;
    --category-radio: #22c55e;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    margin: 0;
    font-family: "Outfit", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    padding: 2rem 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(22, 26, 32, 0.95) 0%, var(--bg) 100%);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.25rem;
}

.tagline {
    margin: 0 0 1.25rem;
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.search-wrap {
    max-width: 360px;
}

.search {
    width: 100%;
    padding: 0.6rem 0.9rem;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.875rem;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

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

.search:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.main {
    flex: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
    width: 100%;
}

.category {
    margin-bottom: 2.25rem;
}

.category-title {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin: 0 0 0.75rem;
    padding-bottom: 0.35rem;
}

.category[data-category="conflict"] .category-title { color: var(--category-conflict); }
.category[data-category="aviation"] .category-title { color: var(--category-aviation); }
.category[data-category="maritime"] .category-title { color: var(--category-maritime); }
.category[data-category="satellite"] .category-title { color: var(--category-satellite); }
.category[data-category="radio"] .category-title { color: var(--category-radio); }

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.card {
    display: block;
    padding: 1rem 1.1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.card:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.card-label {
    display: block;
    font-weight: 600;
    font-size: 0.9375rem;
    margin-bottom: 0.25rem;
}

.card-url {
    display: block;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.category.hidden {
    display: none;
}

.card.hidden {
    display: none;
}

.footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer a {
    color: var(--accent);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

@media (min-width: 640px) {
    .header { padding: 2.5rem 2rem 1.75rem; }
    .logo { font-size: 2rem; }
    .main { padding: 2rem; }
    .card-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}