/* ============================================
   MetaGSP Learning — Status Page
   Auto light/dark (prefers-color-scheme)
   ============================================ */

:root {
    /* Background */
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-card: #ffffff;
    --bg-card-hover: #f3f4f6;

    /* Text */
    --text-primary: #1f2328;
    --text-secondary: #656d76;
    --text-muted: #8b949e;

    /* Status colors */
    --color-healthy: #1a7f37;
    --color-degraded: #9a6700;
    --color-down: #cf222e;
    --color-unknown: #6e7781;
    --color-nodata: #e6e8eb;

    /* Status backgrounds */
    --bg-healthy: rgba(26, 127, 55, 0.08);
    --bg-degraded: rgba(154, 103, 0, 0.08);
    --bg-down: rgba(207, 34, 46, 0.08);
    --bg-unknown: rgba(110, 119, 129, 0.08);

    /* Accents */
    --border-color: #d1d9e0;
    --border-radius: 8px;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04);

    /* Sizing */
    --max-width: 720px;
    --spacing: 1rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Background */
        --bg-primary: #0d1117;
        --bg-secondary: #161b22;
        --bg-card: #161b22;
        --bg-card-hover: #1c2129;

        /* Text */
        --text-primary: #e6edf3;
        --text-secondary: #8b949e;
        --text-muted: #6e7681;

        /* Status colors */
        --color-healthy: #3fb950;
        --color-degraded: #d29922;
        --color-down: #f85149;
        --color-unknown: #6e7681;
        --color-nodata: #21262d;

        /* Status backgrounds */
        --bg-healthy: rgba(63, 185, 80, 0.12);
        --bg-degraded: rgba(210, 153, 34, 0.12);
        --bg-down: rgba(248, 81, 73, 0.12);
        --bg-unknown: rgba(110, 118, 129, 0.12);

        /* Accents */
        --border-color: #30363d;
        --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.2);
    }
}

/* ---- Reset & Base ---- */

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

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ---- Layout ---- */

.status-page {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem var(--spacing);
    min-height: 100vh;
}

/* ---- Header ---- */

.page-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1rem 0 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.brand-name {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.brand-name::before,
.brand-name::after {
    content: "~";
    font-size: 0.9rem;
    color: var(--text-muted);
    opacity: 0.5;
}

.page-title {
    font-family: 'Georgia', 'Times New Roman', 'Palatino Linotype', serif;
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.1;
    outline: none;
}

/* ---- Period Selector ---- */

.period-selector {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.period-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.35rem 0.9rem;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.period-btn:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.period-btn:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.period-btn:not(:first-child) {
    border-left: none;
}

.period-btn:hover {
    background-color: var(--bg-card-hover);
}

.period-btn--active {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.period-btn--active:hover {
    background-color: var(--text-primary);
}

/* ---- Overall Banner ---- */

.overall-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 600;
}

.banner-icon {
    font-size: 1.25rem;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
}

.banner-operational {
    background-color: var(--bg-healthy);
    border: 1px solid var(--color-healthy);
    color: var(--color-healthy);
}

.banner-operational .banner-icon {
    background-color: var(--color-healthy);
    color: white;
}

.banner-degraded {
    background-color: var(--bg-degraded);
    border: 1px solid var(--color-degraded);
    color: var(--color-degraded);
}

.banner-degraded .banner-icon {
    background-color: var(--color-degraded);
    color: white;
}

.banner-major {
    background-color: var(--bg-down);
    border: 1px solid var(--color-down);
    color: var(--color-down);
}

.banner-major .banner-icon {
    background-color: var(--color-down);
    color: white;
}

.banner-unknown {
    background-color: var(--bg-unknown);
    border: 1px solid var(--color-unknown);
    color: var(--color-unknown);
}

/* ---- Service Cards ---- */

.services-section {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 2rem;
}

.service-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-card);
    transition: background-color 0.15s ease;
}

.service-card:first-child {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.service-card:last-child {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.service-card:only-child {
    border-radius: var(--border-radius);
}

.service-card + .service-card {
    border-top: none;
}

.service-card:hover {
    background-color: var(--bg-card-hover);
}

.service-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.service-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.service-status {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.status-operational {
    color: var(--color-healthy);
    background-color: var(--bg-healthy);
}

.status-degraded {
    color: var(--color-degraded);
    background-color: var(--bg-degraded);
}

.status-major {
    color: var(--color-down);
    background-color: var(--bg-down);
}

.status-unknown {
    color: var(--color-unknown);
    background-color: var(--bg-unknown);
}

.service-uptime {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-healthy);
}

.service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.4rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.service-components {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

.component-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-weight: 500;
}

.comp-healthy {
    color: var(--color-healthy);
    background-color: var(--bg-healthy);
}

.comp-degraded {
    color: var(--color-degraded);
    background-color: var(--bg-degraded);
}

.comp-down {
    color: var(--color-down);
    background-color: var(--bg-down);
}

/* ---- Uptime Bar ---- */

.uptime-bar {
    display: flex;
    gap: 1.5px;
    height: 28px;
    align-items: stretch;
}

.uptime-cell {
    flex: 1;
    border-radius: 2px;
    min-width: 2px;
    cursor: default;
    transition: opacity 0.15s ease;
}

.uptime-cell:hover {
    opacity: 0.7;
    outline: 1px solid var(--text-muted);
    outline-offset: 1px;
}

.bar-healthy {
    background-color: var(--color-healthy);
}

.bar-degraded {
    background-color: var(--color-degraded);
}

.bar-down {
    background-color: var(--color-down);
}

.bar-nodata {
    background-color: var(--color-nodata);
}

/* ---- Incidents ---- */

.incidents-section {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-card);
}

.incidents-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.incident-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.incident-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.incident-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.incident-icon {
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.incident-icon-active {
    background-color: var(--color-down);
    color: white;
}

.incident-icon-resolved {
    background-color: var(--color-healthy);
    color: white;
}

.incident-service {
    font-weight: 600;
    font-size: 0.9rem;
}

.incident-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-weight: 600;
    margin-left: auto;
}

.badge-active {
    color: var(--color-down);
    background-color: var(--bg-down);
}

.badge-resolved {
    color: var(--color-healthy);
    background-color: var(--bg-healthy);
}

.incident-details {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding-left: 2rem;
}

.incident-error {
    color: var(--text-muted);
    font-style: italic;
}

.no-incidents {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ---- Footer ---- */

.page-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.refresh-indicator {
    opacity: 0.6;
}

/* ---- Loading & Error ---- */

.loading-container,
.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 1rem;
    color: var(--text-secondary);
    gap: 1rem;
}

.loading-spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-healthy);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    gap: 1rem;
}

.retry-button {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.85rem;
    transition: background-color 0.15s ease;
}

.retry-button:hover {
    background-color: var(--bg-card-hover);
}

/* ---- Blazor Error UI ---- */

#blazor-error-ui {
    background: var(--color-down);
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.4);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: white;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

#blazor-error-ui .reload {
    color: white;
    text-decoration: underline;
}

.blazor-error-boundary {
    background: var(--color-down);
    padding: 1rem;
    color: white;
    border-radius: var(--border-radius);
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

/* ---- Responsive ---- */

@media (max-width: 640px) {
    .status-page {
        padding: 0.5rem 0.75rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .brand-name {
        font-size: 0.6rem;
    }

    .overall-banner {
        font-size: 0.9rem;
        padding: 0.75rem 1rem;
    }

    .uptime-bar {
        height: 22px;
        gap: 1px;
    }

    .service-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .page-footer {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .incident-header {
        flex-wrap: wrap;
    }

    .incident-badge {
        margin-left: 0;
    }
}