.ai-gpu-tool {
    --ai-bg: #f8fafc;
    --ai-surface: #ffffff;
    --ai-ink: #111827;
    --ai-muted: #5b6472;
    --ai-border: rgba(15, 23, 42, 0.12);
    --ai-blue: #0ea5e9;
    --ai-green: #16a34a;
    --ai-amber: #d97706;
    --ai-red: #dc2626;
    --ai-violet: #7c3aed;
    max-width: 1180px;
    margin: 0 auto;
    padding: clamp(10px, 1.5vw, 18px);
    color: var(--ai-ink);
}

html.dark-theme .ai-gpu-tool,
[data-theme="dark"] .ai-gpu-tool {
    --ai-bg: #111827;
    --ai-surface: #0f172a;
    --ai-ink: #e5e7eb;
    --ai-muted: #a7b0c0;
    --ai-border: rgba(148, 163, 184, 0.22);
}

.ai-gpu-hero-shot::after {
    content: "WebGPU";
    position: absolute;
    right: 18px;
    bottom: 18px;
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(2, 6, 23, 0.76);
    color: #e0f2fe;
    font-weight: 800;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
}

.ai-gpu-panel,
.ai-gpu-card {
    background: var(--ai-surface);
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
}

.ai-gpu-stage-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    border: 1px solid rgba(14, 165, 233, 0.22);
    border-radius: 8px;
    background: rgba(14, 165, 233, 0.10);
    color: var(--ai-blue);
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
}

.ai-gpu-panel {
    padding: clamp(16px, 2vw, 24px);
    margin-bottom: 16px;
}

.ai-gpu-panel--summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    background:
        linear-gradient(135deg, rgba(14, 165, 233, 0.12), rgba(124, 58, 237, 0.10)),
        var(--ai-surface);
}

.ai-gpu-summary-main {
    max-width: 760px;
}

.ai-gpu-eyebrow {
    margin: 0 0 6px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--ai-blue);
}

.ai-gpu-panel h3,
.ai-gpu-card h4 {
    margin: 0 0 8px;
    color: var(--ai-ink);
}

.ai-gpu-panel p,
.ai-gpu-card p {
    color: var(--ai-muted);
}

.ai-gpu-score {
    flex: 0 0 150px;
    min-height: 150px;
    display: grid;
    place-items: center;
    text-align: center;
    border-radius: 50%;
    background:
        radial-gradient(circle at 50% 50%, var(--ai-surface) 58%, transparent 60%),
        conic-gradient(var(--ai-blue) var(--ai-score, 0%), rgba(148, 163, 184, 0.28) 0);
}

.ai-gpu-score span {
    display: block;
    font-size: 2.25rem;
    font-weight: 900;
    line-height: 1;
}

.ai-gpu-score small {
    display: block;
    max-width: 88px;
    margin-top: 6px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--ai-muted);
}

.ai-gpu-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.ai-gpu-card {
    padding: 16px;
    min-height: 150px;
}

.ai-gpu-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: #e2e8f0;
    color: #334155;
    font-weight: 900;
    margin-bottom: 12px;
}

.ai-gpu-card.is-good .ai-gpu-check { background: rgba(22, 163, 74, 0.16); color: var(--ai-green); }
.ai-gpu-card.is-warn .ai-gpu-check { background: rgba(217, 119, 6, 0.16); color: var(--ai-amber); }
.ai-gpu-card.is-bad .ai-gpu-check { background: rgba(220, 38, 38, 0.16); color: var(--ai-red); }

.ai-gpu-panel-head {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
}

.ai-gpu-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.ai-gpu-controls label {
    font-weight: 800;
    color: var(--ai-ink);
}

.ai-gpu-controls select {
    min-height: 42px;
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    padding: 0 12px;
    background: var(--ai-surface);
    color: var(--ai-ink);
}

.ai-gpu-btn {
    min-height: 42px;
    border: 0;
    border-radius: 8px;
    padding: 0 16px;
    font-weight: 800;
    cursor: pointer;
}

.ai-gpu-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.ai-gpu-btn-primary {
    background: #0ea5e9;
    color: #fff;
}

.ai-gpu-btn-ghost {
    background: rgba(14, 165, 233, 0.10);
    color: var(--ai-blue);
    border: 1px solid rgba(14, 165, 233, 0.22);
}

.ai-gpu-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 18px 0 14px;
}

.ai-gpu-metric {
    padding: 14px;
    border-radius: 8px;
    background: var(--ai-bg);
    border: 1px solid var(--ai-border);
    text-align: center;
}

.ai-gpu-metric b {
    display: block;
    font-size: clamp(1.25rem, 2vw, 1.9rem);
    color: var(--ai-ink);
}

.ai-gpu-metric span {
    display: block;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--ai-muted);
}

.ai-gpu-progress {
    height: 10px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(148, 163, 184, 0.22);
}

.ai-gpu-progress span {
    display: block;
    width: var(--ai-progress, 0%);
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--ai-blue), var(--ai-violet));
    transition: width 0.3s ease;
}

.ai-gpu-note {
    margin: 12px 0 0;
    font-size: 0.92rem;
}

.ai-gpu-panel--split {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 20px;
}

.ai-gpu-details {
    display: grid;
    gap: 10px;
    margin: 0;
}

.ai-gpu-details div {
    display: grid;
    gap: 5px;
    padding: 10px 0;
    border-bottom: 1px solid var(--ai-border);
}

.ai-gpu-details dt {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 900;
    color: var(--ai-muted);
}

.ai-gpu-details dd {
    margin: 0;
    color: var(--ai-ink);
    word-break: break-word;
}

.ai-gpu-canvas {
    display: block;
    width: 100%;
    height: 320px;
    border-radius: 8px;
    background: #020617;
    border: 1px solid var(--ai-border);
}

.ai-gpu-canvas-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 10px;
    color: var(--ai-muted);
    font-weight: 800;
}

.ai-gpu-noscript {
    background: #fef3c7;
    color: #92400e;
    border-radius: 8px;
    padding: 12px;
}

@media (max-width: 900px) {
    .ai-gpu-panel--summary,
    .ai-gpu-panel-head,
    .ai-gpu-panel--split {
        display: block;
    }

    .ai-gpu-score {
        margin: 16px auto 0;
    }

    .ai-gpu-grid,
    .ai-gpu-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ai-gpu-controls {
        justify-content: flex-start;
        margin-top: 14px;
    }
}

@media (max-width: 560px) {
    .ai-gpu-grid,
    .ai-gpu-metrics {
        grid-template-columns: 1fr;
    }

    .ai-gpu-controls,
    .ai-gpu-canvas-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .ai-gpu-btn,
    .ai-gpu-controls select {
        width: 100%;
    }
}