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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: #f8fafc;
    color: #1e293b;
    line-height: 1.6;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    padding: 30px 0;
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 30px;
}

header h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

header p {
    color: #64748b;
    font-size: 14px;
    max-width: 500px;
    margin: 0 auto;
}

.legend {
    margin-top: 15px;
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.badge.high {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fca5a5;
}

.badge.warn {
    background: #fffbeb;
    color: #d97706;
    border: 1px solid #fcd34d;
}

.badge.safe {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #86efac;
}

section {
    margin-bottom: 40px;
}

section h2 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #1e293b;
}

.expected {
    font-size: 13px;
    color: #64748b;
    margin-bottom: 12px;
}

.links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

@media (min-width: 500px) {
    .links {
        grid-template-columns: 1fr 1fr;
    }
}

.link-card {
    display: block;
    padding: 12px 16px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 13px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    transition: all 0.2s;
    word-break: break-all;
}

.link-card:active {
    transform: scale(0.97);
}

.link-card.high {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.link-card.high:hover {
    background: #fee2e2;
    border-color: #fca5a5;
}

.link-card.warn {
    background: #fffbeb;
    color: #d97706;
    border: 1px solid #fde68a;
}

.link-card.warn:hover {
    background: #fef3c7;
    border-color: #fcd34d;
}

.link-card.safe {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

.link-card.safe:hover {
    background: #dcfce7;
    border-color: #86efac;
}

.rotation-test {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.rotation-test .link-card {
    flex: 1;
    min-width: 200px;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
}

.test-log {
    background: #1e293b;
    border-radius: 10px;
    padding: 16px;
    margin-top: 15px;
}

.test-log h3 {
    color: #94a3b8;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

#log {
    font-family: monospace;
    font-size: 12px;
    color: #e2e8f0;
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 10px;
}

#log .entry {
    padding: 4px 0;
    border-bottom: 1px solid #334155;
}

.test-log button {
    background: #334155;
    color: #94a3b8;
    border: none;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
}

.test-log button:hover {
    background: #475569;
    color: #e2e8f0;
}

footer {
    text-align: center;
    padding: 30px 0;
    border-top: 1px solid #e2e8f0;
    color: #94a3b8;
    font-size: 12px;
}

footer a {
    color: #2563eb;
    text-decoration: none;
}