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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #0f1117;
    color: #e1e4e8;
    min-height: 100vh;
    line-height: 1.5;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

.branding {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.logo {
    height: 32px;
}

.branding-text {
    font-size: 0.85rem;
    color: #8b949e;
}

.branding-text strong {
    color: #c9d1d9;
}

header h1 {
    font-size: 2rem;
    color: #fff;
    letter-spacing: -0.02em;
}

.subtitle {
    color: #8b949e;
    margin-top: 0.25rem;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

#startBtn {
    background: #238636;
    color: #fff;
    border: none;
    padding: 0.75rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.15s;
}

#startBtn:hover {
    background: #2ea043;
}

#startBtn:disabled {
    background: #21262d;
    color: #484f58;
    cursor: not-allowed;
}

.stop-btn {
    background: #da3633;
    color: #fff;
    border: none;
    padding: 0.2rem 0.7rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
    margin-left: auto;
}

.stop-btn:hover {
    background: #f85149;
}

.cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 1.25rem;
    transition: border-color 0.2s;
    width: calc((100% - 2 * 1.25rem) / 3);
    min-width: 280px;
    box-sizing: border-box;
}

.card.running {
    border-color: #1f6feb;
}

.card.complete {
    border-color: #238636;
}

.card.error {
    border-color: #da3633;
}

.card.warn {
    border-color: #d29922;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: #f0f6fc;
}

.badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-weight: 500;
    background: #21262d;
    color: #8b949e;
}

.badge.running {
    background: #0d1d3a;
    color: #58a6ff;
}

.badge.complete {
    background: #0d2818;
    color: #3fb950;
}

.badge.error {
    background: #3d1214;
    color: #f85149;
}

.badge.warn {
    background: #2a1f00;
    color: #d29922;
}

.card-desc {
    font-size: 0.8rem;
    color: #8b949e;
    margin-bottom: 0.75rem;
}

.card-location {
    display: flex;
    align-items: center;
    font-size: 0.8rem;
    color: #58a6ff;
    margin-bottom: 1rem;
    min-height: 1.2em;
}

.results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.metric {
    background: #0d1117;
    border-radius: 6px;
    padding: 0.6rem 0.75rem;
}

.metric-label {
    display: block;
    font-size: 0.7rem;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.15rem;
}

.metric-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: #f0f6fc;
    font-variant-numeric: tabular-nums;
}

.diagnosis {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 1.5rem;
}

.diagnosis h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #f0f6fc;
}

.diagnosis-item {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.6;
}

.diagnosis-item.good {
    background: #0d2818;
    border-left: 3px solid #3fb950;
}

.diagnosis-item.warn {
    background: #2a1f00;
    border-left: 3px solid #d29922;
}

.diagnosis-item.bad {
    background: #3d1214;
    border-left: 3px solid #f85149;
}

#copyBtn {
    background: #1f6feb;
    color: #fff;
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
}

#copyBtn:hover {
    background: #388bfd;
}

.spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid #30363d;
    border-top-color: #58a6ff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 0.4rem;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#dashBtn {
    background: #1f6feb;
    color: #fff;
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
}

#dashBtn:hover {
    background: #388bfd;
}

#dashboard {
    margin-top: 1.5rem;
}

.dash-row {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.dash-chart {
    flex: 1;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    min-height: 420px;
}

@media (max-width: 800px) {
    .dash-row { flex-direction: column; }
}