:root {
    --bg-root: #050508;
    --bg-surface: #0a0a0f;
    --bg-elevated: #10101a;
    --bg-hover: #16162a;
    --border: #1a1a2e;
    --border-hover: #2a2a4e;
    --text-primary: #e8e8f0;
    --text-secondary: #7a7a9a;
    --text-muted: #4a4a6a;
    --green: #22c55e;
    --green-dim: #16a34a;
    --green-bg: #052e16;
    --green-glow: rgba(34, 197, 94, 0.15);
    --yellow: #f59e0b;
    --yellow-dim: #d97706;
    --yellow-bg: #1c1917;
    --yellow-glow: rgba(245, 158, 11, 0.15);
    --red: #ef4444;
    --red-dim: #dc2626;
    --red-bg: #1c1017;
    --red-glow: rgba(239, 68, 68, 0.15);
    --accent: #6366f1;
    --accent-dim: #4f46e5;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Courier New', Courier, monospace;
    --mono: 'Courier New', Courier, monospace;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg-root);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Subtle background grain */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

/* Ambient glow behind header */
.ambient-glow {
    position: fixed;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(ellipse, var(--green-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transition: background 1s ease;
}

.ambient-glow.degraded {
    background: radial-gradient(ellipse, var(--yellow-glow) 0%, transparent 70%);
}

.ambient-glow.down {
    background: radial-gradient(ellipse, var(--red-glow) 0%, transparent 70%);
}

/* ─── Container ─── */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* ─── Header ─── */
.header {
    padding: 48px 0 40px;
    text-align: center;
}

.header-title {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.header-title span {
    color: var(--text-muted);
    font-weight: 400;
}

.header-live {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-family: var(--mono);
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    animation: pulse 2s ease-in-out infinite;
}

.live-dot.degraded { background: var(--yellow); box-shadow: 0 0 8px var(--yellow); }
.live-dot.down { background: var(--red); box-shadow: 0 0 8px var(--red); }

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

/* ─── Status Cards ─── */
.status-cards {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.status-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 16px;
    text-align: center;
    transition: border-color var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}

.status-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    opacity: 0.5;
    transition: background 0.5s ease;
}

.status-card.degraded::before {
    background: linear-gradient(90deg, transparent, var(--yellow), transparent);
}

.status-card.down::before {
    background: linear-gradient(90deg, transparent, var(--red), transparent);
}

.status-card:hover {
    border-color: var(--border-hover);
}

.card-label {
    font-size: 0.65rem;
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.card-value {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 4px;
    transition: color 0.5s ease;
}

.card-value.operational { color: var(--green); }
.card-value.degraded { color: var(--yellow); }
.card-value.down { color: var(--red); }
.card-value.unknown { color: var(--text-muted); }

.card-status {
    font-size: 0.7rem;
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: color 0.5s ease;
}

.card-status.operational { color: var(--green-dim); }
.card-status.degraded { color: var(--yellow-dim); }
.card-status.down { color: var(--red-dim); }
.card-status.unknown { color: var(--text-muted); }

/* ─── Latency Graph ─── */
.graph-section {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.graph-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.graph-title {
    font-size: 0.65rem;
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.graph-subtitle {
    font-size: 0.65rem;
    font-family: var(--mono);
    color: var(--text-muted);
}

.graph-bars {
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 80px;
    padding: 0 2px;
}

.graph-bar {
    flex: 1;
    min-width: 0;
    border-radius: 3px 3px 1px 1px;
    transition: height 0.4s ease, background 0.3s ease;
    position: relative;
    cursor: default;
}

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

.graph-bar.ok { background: var(--green); }
.graph-bar.degraded { background: var(--yellow); }
.graph-bar.down { background: var(--red); }
.graph-bar.empty { background: var(--border); height: 4px !important; }

.graph-bar-tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-elevated);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-xs);
    padding: 6px 10px;
    font-size: 0.7rem;
    font-family: var(--mono);
    color: var(--text-primary);
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
}

.graph-bar:hover .graph-bar-tooltip {
    display: block;
}

.graph-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--mono);
}

/* ─── Report Section ─── */
.report-section {
    margin-bottom: 20px;
}

.report-btn {
    width: 100%;
    padding: 14px;
    background: var(--red);
    border: none;
    border-radius: var(--radius);
    color: white;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.report-btn:hover {
    background: var(--red-dim);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--red-glow);
}

.report-btn:active {
    transform: translateY(0);
}

/* Report picker (hidden by default) */
.report-picker {
    display: none;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 10px;
    animation: slideDown 0.25s ease;
}

.report-picker.active {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.picker-label {
    font-size: 0.65rem;
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.picker-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.picker-row:last-child {
    margin-bottom: 0;
}

.picker-btn {
    flex: 1;
    padding: 10px 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

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

.picker-btn.selected {
    border-color: var(--accent);
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.picker-btn.severity-fine { border-left: 3px solid var(--green); }
.picker-btn.severity-slow { border-left: 3px solid var(--yellow); }
.picker-btn.severity-down { border-left: 3px solid var(--red); }

.picker-btn.severity-fine.selected { background: var(--green-bg); border-color: var(--green-dim); color: var(--green); }
.picker-btn.severity-slow.selected { background: var(--yellow-bg); border-color: var(--yellow-dim); color: var(--yellow); }
.picker-btn.severity-down.selected { background: var(--red-bg); border-color: var(--red-dim); color: var(--red); }

.picker-submit {
    width: 100%;
    margin-top: 12px;
    padding: 10px;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.picker-submit:hover {
    background: var(--accent-dim);
}

.picker-submit:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.report-confirmation {
    display: none;
    text-align: center;
    padding: 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 10px;
    font-size: 0.8rem;
    color: var(--green);
    font-family: var(--mono);
    animation: slideDown 0.25s ease;
}

/* ─── Report Counters ─── */
.report-counters {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.counter {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    transition: border-color var(--transition);
}

.counter:hover {
    border-color: var(--border-hover);
}

.counter-value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 2px;
}

.counter-value.fine { color: var(--green); }
.counter-value.slow { color: var(--yellow); }
.counter-value.down { color: var(--red); }

.counter-label {
    font-size: 0.65rem;
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

/* ─── Live Feed ─── */
.feed-section {
    margin-bottom: 40px;
}

.feed-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    -webkit-user-select: none;
    user-select: none;
}

.feed-toggle:hover {
    border-color: var(--border-hover);
}

.feed-toggle.expanded {
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom-color: transparent;
}

.feed-toggle-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feed-arrow {
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}

.feed-toggle.expanded .feed-arrow {
    transform: rotate(90deg);
}

.feed-toggle-title {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

.feed-toggle-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.feed-count {
    font-size: 0.7rem;
    font-family: var(--mono);
    color: var(--text-muted);
}

.feed-content {
    display: none;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
    padding: 12px;
    max-height: 400px;
    overflow-y: auto;
}

.feed-content.expanded {
    display: block;
    animation: slideDown 0.25s ease;
}

.feed-content::-webkit-scrollbar {
    width: 4px;
}

.feed-content::-webkit-scrollbar-track {
    background: transparent;
}

.feed-content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.feed-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--bg-root);
    border-radius: var(--radius-xs);
    margin-bottom: 6px;
    border-left: 3px solid var(--border);
    transition: background var(--transition);
}

.feed-item:last-child {
    margin-bottom: 0;
}

.feed-item:hover {
    background: var(--bg-elevated);
}

.feed-item.fine { border-left-color: var(--green); }
.feed-item.slow { border-left-color: var(--yellow); }
.feed-item.down { border-left-color: var(--red); }

.feed-item-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feed-badge {
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 7px;
    border-radius: 4px;
    background: var(--bg-elevated);
}

.feed-badge.fine { color: var(--green); background: var(--green-bg); }
.feed-badge.slow { color: var(--yellow); background: var(--yellow-bg); }
.feed-badge.down { color: var(--red); background: var(--red-bg); }

.feed-service {
    font-size: 0.8rem;
    color: var(--text-primary);
}

.feed-time {
    font-size: 0.65rem;
    font-family: var(--mono);
    color: var(--text-muted);
    white-space: nowrap;
}

.feed-empty {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--mono);
}

/* ─── Incident Banner ─── */
.incident-banner {
    display: none;
    background: var(--red-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-bottom: 20px;
    animation: slideDown 0.3s ease;
}

.incident-banner.active {
    display: flex;
    align-items: center;
    gap: 12px;
}

.incident-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

.incident-text {
    font-size: 0.8rem;
    color: var(--red);
    line-height: 1.4;
}

.incident-text strong {
    display: block;
    margin-bottom: 2px;
}

/* ─── Footer ─── */
.footer {
    text-align: center;
    padding: 24px 0 48px;
    font-size: 0.7rem;
    font-family: var(--mono);
    color: var(--text-muted);
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.footer a:hover {
    color: var(--text-primary);
}

/* ─── Loading State ─── */
.loading-skeleton {
    background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-hover) 50%, var(--bg-elevated) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-xs);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ─── Responsive ─── */
@media (max-width: 600px) {
    .container {
        padding: 0 16px;
    }

    .header {
        padding: 32px 0 28px;
    }

    .status-cards {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .status-card {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
        padding: 16px;
    }

    .card-label {
        margin-bottom: 0;
    }

    .status-card .card-right {
        text-align: right;
    }

    .card-value {
        font-size: 1.25rem;
    }

    .report-counters {
        gap: 8px;
    }

    .counter {
        padding: 12px;
    }

    .counter-value {
        font-size: 1.2rem;
    }

    .picker-row {
        flex-direction: column;
        gap: 6px;
    }
}

/* ─── Fade-in animation ─── */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.fade-in:nth-child(1) { animation-delay: 0s; }
.fade-in:nth-child(2) { animation-delay: 0.05s; }
.fade-in:nth-child(3) { animation-delay: 0.1s; }
.fade-in:nth-child(4) { animation-delay: 0.15s; }
.fade-in:nth-child(5) { animation-delay: 0.2s; }
.fade-in:nth-child(6) { animation-delay: 0.25s; }
.fade-in:nth-child(7) { animation-delay: 0.3s; }