:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-main: #c9d1d9;
    --text-dim: #8b949e;
    --green: #3fb950;
    --red: #f85149;
    --orange: #f0883e;
    --border: #30363d;
    --accent: #58a6ff;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    padding: 40px 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.back-link {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
}

.header-right {
    text-align: right;
}

.status-label {
    font-weight: 600;
    font-size: 1.1rem;
}

.view-type {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.main-header {
    margin-bottom: 30px;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.selector-container select {
    background: var(--card-bg);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.9rem;
    min-width: 250px;
    cursor: pointer;
    outline: none;
}

/* Status Banner */
.status-banner {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 25px 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    margin-bottom: 40px;
}

.status-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    margin-right: 20px;
    flex-shrink: 0;
}

.operational .status-dot { background-color: var(--green); box-shadow: 0 0 15px rgba(63, 185, 80, 0.4); }
.down .status-dot { background-color: var(--red); box-shadow: 0 0 15px rgba(248, 81, 73, 0.4); }

.status-text {
    font-size: 1.3rem;
    font-weight: 600;
}

.status-value {
    color: var(--green);
}

.down .status-value { color: var(--red); }

.update-frequency {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-dim);
}

/* Section Cards */
.section-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 25px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.dim {
    color: var(--text-dim);
    font-weight: 400;
}

.full-history-link {
    color: var(--green);
    text-decoration: none;
    font-size: 0.85rem;
}

/* Uptime Grid */
.uptime-percentage {
    color: var(--green);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.uptime-grid {
    display: flex;
    gap: 3px;
    height: 35px;
    margin-bottom: 15px;
}

.grid-bar {
    flex: 1;
    background: #21262d;
    border-radius: 2px;
    transition: transform 0.2s;
}

.grid-bar:hover {
    transform: scaleY(1.2);
}

.grid-bar.up { background-color: var(--green); opacity: 0.8; }
.grid-bar.down { background-color: var(--red); }
.grid-bar.warning { background-color: var(--orange); }

.grid-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.divider {
    flex: 1;
    height: 1px;
    background: var(--border);
    margin: 0 15px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-period {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* Chart */
.chart-container {
    height: 150px;
    margin-bottom: 20px;
}

#response-chart {
    width: 100%;
    height: 100%;
}

.response-line {
    fill: none;
    stroke: var(--green);
    stroke-width: 1.5;
}

.response-area {
    fill: rgba(63, 185, 80, 0.1);
}

.response-stats {
    display: flex;
    gap: 40px;
}

.resp-val {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
}

.resp-lbl {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* Events */
.events-list {
    margin-top: 15px;
}

.event-item {
    display: flex;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.event-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 15px;
    margin-top: 6px;
}

.up-dot { background-color: var(--green); }
.down-dot { background-color: var(--red); }

.event-title {
    font-weight: 600;
    font-size: 0.95rem;
}

.event-date {
    color: var(--text-dim);
    font-size: 0.8rem;
}

.event-reason {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.no-events {
    padding: 20px 0;
    color: var(--text-dim);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}