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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --accent-color: #0066cc;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --neutral: #d1d5db;
    --root-font-size: 16px;
}

html.dark-mode {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #404040;
    --accent-color: #3b82f6;
    --neutral: #555555;
}

html[data-font-size="small"] {
    --root-font-size: 14px;
}

html[data-font-size="large"] {
    --root-font-size: 18px;
}

html {
    color-scheme: light;
}

html.dark-mode {
    color-scheme: dark;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s, color 0.3s;
    font-size: var(--root-font-size);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    align-items: flex-start;
}

.user-name {
    font-weight: 500;
    color: var(--text-primary);
    background: none;
    border: 1px solid transparent;
    padding: 0.1rem 0.3rem;
    margin-left: -0.3rem;
    border-radius: 4px;
    font-size: inherit;
    font-family: inherit;
    cursor: pointer;
    max-width: 16rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-name:hover {
    background-color: var(--bg-primary);
    border-color: var(--border-color);
}

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

.header-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.font-controls {
    display: flex;
    gap: 0.5rem;
    border-right: 1px solid var(--border-color);
    padding-right: 1rem;
}

button,
select {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: inherit;
    font-family: inherit;
}

button:hover,
select:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
}

button.active {
    background-color: var(--accent-color);
    color: #ffffff;
    border-color: var(--accent-color);
}

:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.theme-toggle {
    width: 50px;
    height: 28px;
    background-color: var(--neutral);
    border: none;
    border-radius: 14px;
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    padding: 2px;
    flex: none;
    transition: background-color 0.3s;
}

.theme-toggle::after {
    content: '☀️';
    position: absolute;
    left: 4px;
    font-size: 0.9rem;
    transition: left 0.3s;
}

.theme-toggle:hover {
    background-color: var(--neutral);
}

html.dark-mode .theme-toggle,
html.dark-mode .theme-toggle:hover {
    background-color: var(--accent-color);
}

html.dark-mode .theme-toggle::after {
    content: '🌙';
    left: 22px;
}

main {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    gap: 2rem;
    align-content: start;
    flex: 1;
}

.section-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.overall {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.overall-dot {
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background-color: var(--neutral);
    flex: none;
}

.overall-dot.up { background-color: var(--success); }
.overall-dot.degraded { background-color: var(--warning); }
.overall-dot.down { background-color: var(--danger); }

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

.timeline-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

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

.timeline-controls select {
    padding: 0.35rem 0.6rem;
    font-size: 0.9rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.service-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.service-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
}

.status-badge.operational {
    background-color: rgba(16, 185, 129, 0.12);
    color: var(--success);
}

.status-badge.degraded {
    background-color: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}

.status-badge.down {
    background-color: rgba(239, 68, 68, 0.12);
    color: var(--danger);
}

.uptime-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.uptime-percentage {
    font-weight: 600;
    color: var(--text-primary);
}

.uptime-bars {
    display: grid;
    grid-template-columns: repeat(30, 1fr);
    gap: 2px;
}

.day-block {
    aspect-ratio: 1;
    border-radius: 2px;
    border: none;
    padding: 0;
    cursor: pointer;
    min-width: 0;
    background-color: var(--neutral);
    transition: transform 0.2s, opacity 0.2s;
}

.day-block:hover,
.day-block:focus-visible {
    transform: scale(1.25);
    opacity: 0.85;
}

.day-block.up {
    background-color: var(--success);
}

.day-block.degraded {
    background-color: var(--warning);
}

.day-block.down {
    background-color: var(--danger);
}

.day-block.selected {
    outline: 2px solid var(--text-primary);
    outline-offset: 1px;
}

.uptime-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.uptime-legend span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.legend-swatch {
    width: 0.65rem;
    height: 0.65rem;
    border-radius: 2px;
    display: inline-block;
}

.legend-swatch.up { background-color: var(--success); }
.legend-swatch.degraded { background-color: var(--warning); }
.legend-swatch.down { background-color: var(--danger); }

.uptime-range {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

.day-tooltip {
    position: fixed;
    z-index: 200;
    max-width: 18rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.6rem 0.8rem;
    font-size: 0.85rem;
    line-height: 1.4;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
    pointer-events: none;
}

.day-tooltip strong {
    display: block;
    margin-bottom: 0.2rem;
}

.timeline-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.incident-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.incident-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 1.5rem;
    padding: 1rem;
    border-left: 4px solid var(--neutral);
    background-color: var(--bg-primary);
    border-radius: 4px;
}

.incident-item.resolved {
    border-left-color: var(--success);
}

.incident-item.ongoing {
    border-left-color: var(--danger);
}

.incident-item.highlight {
    box-shadow: 0 0 0 2px var(--accent-color);
}

.incident-date {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

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

.incident-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.incident-header {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.incident-service {
    font-weight: 600;
    color: var(--text-primary);
}

.incident-duration {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.25rem 0.5rem;
    background-color: var(--border-color);
    border-radius: 3px;
}

.incident-title {
    font-weight: 500;
    color: var(--text-primary);
}

.incident-description {
    color: var(--text-secondary);
    line-height: 1.5;
}

.no-incidents {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-style: italic;
}

.load-error {
    border: 1px solid var(--danger);
    border-radius: 8px;
    padding: 1.5rem;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

footer {
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 2rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-align: center;
}

footer code {
    font-size: 0.85em;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
        position: static;
    }

    .header-left {
        width: 100%;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
        border-top: 1px solid var(--border-color);
        padding-top: 1rem;
    }

    .font-controls {
        border-right: none;
        padding-right: 0;
    }

    main {
        padding: 1rem;
    }

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

    .incident-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .uptime-bars {
        grid-template-columns: repeat(18, 1fr);
    }

    .timeline-controls {
        width: 100%;
    }

    .timeline-controls select {
        flex: 1;
        min-width: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }
}