/* V8 Atomics.wait Bug Demo — Styles */

:root {
    --bg: #0d1117;
    --surface: #161b22;
    --surface-raised: #1c2128;
    --border: #30363d;
    --text: #e6edf3;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --green: #3fb950;
    --red: #f85149;
    --amber: #d29922;
    --font-mono: "Cascadia Code", "JetBrains Mono", "Fira Code", "Consolas", monospace;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --radius: 6px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
}

header h1 code {
    color: var(--red);
    font-family: var(--font-mono);
    font-size: 1.5rem;
    background: var(--surface-raised);
    padding: 0.1em 0.4em;
    border-radius: var(--radius);
}

header .subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

header .attribution {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

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

header .attribution a:hover {
    text-decoration: underline;
}

/* Sections */
section {
    margin-bottom: 2rem;
}

section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

/* Environment check */
.env-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.env-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.env-item .label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    display: block;
    margin-bottom: 0.2rem;
}

.env-item .value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.env-item .value.ok { color: var(--green); }
.env-item .value.fail { color: var(--red); }
.env-item .value.warn { color: var(--amber); }

/* Explainer */
.explainer {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.explainer p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.explainer p:last-child {
    margin-bottom: 0;
}

.explainer strong {
    color: var(--text);
}

.explainer code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--surface-raised);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    color: var(--accent);
}

/* Diagram */
.diagram {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 1.25rem 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-secondary);
    white-space: pre;
}

.diagram .worker-a { color: var(--accent); }
.diagram .worker-b { color: var(--amber); }
.diagram .worker-c { color: var(--green); }
.diagram .stale { color: var(--red); font-weight: bold; }
.diagram .ok { color: var(--green); }
.diagram .dim { color: #484f58; }

/* Controls */
.controls {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font-body);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.btn:hover:not(:disabled) {
    background: var(--surface-raised);
    border-color: var(--text-secondary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: #238636;
    border-color: #2ea043;
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: #2ea043;
    border-color: #3fb950;
}

.iter-select {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    cursor: pointer;
}

.iter-select:focus {
    outline: 2px solid var(--accent);
    outline-offset: -1px;
}

.iter-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Test cards */
.test-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
    transition: border-left-color 0.3s;
}

.test-card.running { border-left-color: var(--accent); }
.test-card.pass { border-left-color: var(--green); }
.test-card.fail { border-left-color: var(--red); }

.test-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.test-title {
    font-size: 1rem;
    font-weight: 600;
}

.test-config {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.test-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2em 0.6em;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.badge-pending { background: var(--surface-raised); color: var(--text-secondary); }
.badge-running { background: #0c2d6b; color: var(--accent); }
.badge-pass { background: #0f2d16; color: var(--green); }
.badge-fail { background: #3d1214; color: var(--red); }
.badge-expected-pass { background: #0f2d16; color: var(--green); border: 1px dashed #2d5a34; }
.badge-expected-fail { background: #3d1214; color: var(--red); border: 1px dashed #5a2d2d; }

/* Progress bar */
.progress-wrap {
    margin: 0.75rem 0;
}

.progress-bar {
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 3px;
    transition: width 0.2s ease-out;
}

.progress-fill.ok { background: var(--accent); }
.progress-fill.error { background: var(--red); }

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.stat {
    font-size: 0.8rem;
}

.stat .stat-label {
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.1rem;
}

.stat .stat-value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.stat .stat-value.error-count {
    color: var(--red);
    font-weight: 600;
}

.stat .stat-value.zero-errors {
    color: var(--green);
}

/* Results summary */
.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.results-table th,
.results-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.results-table th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.results-table td {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.results-table .pass-cell { color: var(--green); font-weight: 600; }
.results-table .fail-cell { color: var(--red); font-weight: 600; }

/* Collapsible details */
details {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
}

details summary {
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text);
    user-select: none;
}

details summary:hover {
    background: var(--surface-raised);
}

details[open] summary {
    border-bottom: 1px solid var(--border);
}

details .detail-content {
    padding: 1rem;
}

/* Code blocks */
pre {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0.75rem 0;
}

pre code {
    font-family: inherit;
    font-size: inherit;
}

/* Error banner */
.error-banner {
    background: #3d1214;
    border: 1px solid #5a2d2d;
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--red);
}

.error-banner code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: rgba(248, 81, 73, 0.1);
    padding: 0.15em 0.4em;
    border-radius: 3px;
}

/* Footer */
footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

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

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

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 1.25rem 1rem;
    }

    header h1 {
        font-size: 1.35rem;
    }

    header h1 code {
        font-size: 1.15rem;
    }

    .stats {
        grid-template-columns: 1fr 1fr;
    }

    .env-grid {
        grid-template-columns: 1fr;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    .progress-fill {
        transition: none;
    }

    .test-card {
        transition: none;
    }
}