:root {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --card-bg: #161b22;
    --border-color: #30363d;
    --accent-color: #58a6ff;
    --success-color: #2ea043;
    --warning-color: #d29922;
    --error-color: #f85149;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.container {
    max-width: 800px;
    width: 100%;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo h1 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 0.2rem;
}

.logo p {
    font-size: 0.9rem;
    color: #8b949e;
}

.system-status {
    display: flex;
    align-items: center;
    background-color: var(--card-bg);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.status-icon {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.75rem;
}

.status-icon.operational {
    background-color: var(--success-color);
    box-shadow: 0 0 8px var(--success-color);
}

.status-icon.degraded {
    background-color: var(--warning-color);
    box-shadow: 0 0 8px var(--warning-color);
}

.status-icon.outage {
    background-color: var(--error-color);
    box-shadow: 0 0 8px var(--error-color);
}

.status-text {
    font-weight: 600;
}

.services-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
}

.service-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.service-info {
    display: flex;
    flex-direction: column;
}

.service-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.service-description {
    font-size: 0.85rem;
    color: #8b949e;
}

.service-status {
    display: flex;
    align-items: center;
    font-weight: 500;
}

.service-status .status-icon {
    margin-right: 0.5rem;
}

/* History Bars */
.history-container {
    width: 100%;
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.history-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 40px;
}

.history-bar {
    flex: 1;
    min-width: 4px;
    height: 100%;
    border-radius: 2px;
    background-color: var(--border-color); /* default/empty state */
    cursor: pointer;
    position: relative;
    transition: opacity 0.2s;
}

.history-bar:hover {
    opacity: 0.8;
}

.history-bar.operational {
    background-color: var(--success-color);
}

.history-bar.outage {
    background-color: var(--error-color);
}

.history-legend {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: #8b949e;
}

.tooltip {
    visibility: hidden;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 4px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    white-space: nowrap;
    font-size: 0.75rem;
}

.history-bar:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

.about {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.about h2 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.about p {
    color: #8b949e;
    font-size: 0.95rem;
}

footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: #8b949e;
    font-size: 0.85rem;
}

/* Loading skeleton */
.skeleton {
    animation: skeleton-loading 1s linear infinite alternate;
}

@keyframes skeleton-loading {
    0% {
        background-color: var(--border-color);
    }
    100% {
        background-color: #484f58;
    }
}

.skeleton-text {
    width: 100%;
    height: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
}

@media (max-width: 600px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .service-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}