:root {
    --bg: #0d1117;
    --surface: #161b22;
    --border: #30363d;
    --text: #e6edf3;
    --text-dim: #8b949e;
    --ok: #3fb950;
    --warning: #d29922;
    --critical: #f85149;
    --unreachable: #8b949e;
    --accent: #58a6ff;
    --font: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 14px;
    min-height: 100vh;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
    flex-wrap: wrap;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

header h1 {
    font-size: 18px;
    font-weight: 600;
}

.back {
    color: var(--accent);
    text-decoration: none;
    font-size: 14px;
}

.ip { color: var(--text-dim); font-size: 12px; }
.summary { color: var(--text-dim); font-size: 13px; }
.timestamp { color: var(--text-dim); font-size: 12px; }
.line-count { color: var(--text-dim); font-size: 12px; }

/* Badges */
.badge {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-ok { background: var(--ok); color: #000; }
.badge-warning { background: var(--warning); color: #000; }
.badge-critical { background: var(--critical); color: #fff; }
.badge-unreachable { background: var(--unreachable); color: #000; }

/* Form elements */
select, input[type="text"], input[type="password"] {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 6px;
    font-family: var(--font);
    font-size: 13px;
}

button, .btn-logout {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font);
    font-size: 13px;
    text-decoration: none;
}

button:hover, .btn-logout:hover {
    border-color: var(--accent);
    color: var(--accent);
}

button.active {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
}

button.btn-danger {
    border-color: var(--critical);
    color: var(--critical);
}

button.btn-danger:hover {
    background: var(--critical);
    color: #fff;
}

/* Login */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    width: 320px;
}

.login-box h1 {
    margin-bottom: 24px;
    font-size: 24px;
}

.login-box input {
    width: 100%;
    margin-bottom: 16px;
    padding: 10px;
}

.login-box button {
    width: 100%;
    padding: 10px;
    background: var(--accent);
    color: #000;
    border: none;
    font-weight: 600;
}

.login-box .error {
    color: var(--critical);
    margin-bottom: 12px;
    font-size: 13px;
}

/* Dashboard Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
    padding: 20px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.15s;
    border-left: 3px solid var(--border);
}

.card:hover { border-color: var(--accent); }
.card-ok { border-left-color: var(--ok); }
.card-warning { border-left-color: var(--warning); }
.card-critical { border-left-color: var(--critical); }
.card-unreachable { border-left-color: var(--unreachable); }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.card-name { font-weight: 600; font-size: 14px; }
.card-status { font-size: 11px; text-transform: uppercase; color: var(--text-dim); }

.card-count {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
}

.card-ok .card-count { color: var(--ok); }
.card-warning .card-count { color: var(--warning); }
.card-critical .card-count { color: var(--critical); }

.card-label {
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.card-sources {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.source-tag {
    font-size: 11px;
    color: var(--text-dim);
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 4px;
}

.card-top-error, .card-message {
    font-size: 11px;
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-top: 4px;
}

/* Log View */
.log-view {
    padding: 12px 20px;
    overflow-x: auto;
}

#log-output {
    font-size: 12px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

.log-line { display: block; }
.log-line:hover { background: rgba(255, 255, 255, 0.03); }
.log-line.hidden { display: none; }

.log-source {
    font-weight: 600;
    margin-right: 8px;
}

.log-source-nginx { color: var(--ok); }
.log-source-php { color: var(--warning); }
.log-source-app { color: var(--accent); }
.log-source-unknown { color: var(--text-dim); }

/* Responsive */
@media (max-width: 768px) {
    header { flex-direction: column; gap: 8px; }
    .header-left, .header-right { flex-wrap: wrap; }
    .grid { grid-template-columns: 1fr; }
}

/* Loading */
.loading { opacity: 0.5; pointer-events: none; }

.card-loading {
    animation: pulse 1.5s ease-in-out infinite;
}

.card-loading .card-count {
    color: var(--text-dim);
}

.badge-loading {
    background: var(--border);
    color: var(--text-dim);
}

.skeleton-text {
    color: var(--text-dim);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 40px 20px;
    color: var(--text-dim);
    font-size: 14px;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Filtered log lines */
.log-filtered {
    opacity: 0.35;
}

.log-filtered:hover {
    opacity: 0.6;
}

/* Show filtered toggle */
.toggle-filtered {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-dim);
    cursor: pointer;
    white-space: nowrap;
}

.toggle-filtered input {
    cursor: pointer;
}

/* Auto-refresh toggle */
.toggle-auto {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-dim);
    cursor: pointer;
    white-space: nowrap;
}

.toggle-auto input {
    cursor: pointer;
}

/* Countdown bar */
.countdown-track {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border);
}

.countdown-bar {
    height: 100%;
    width: 0%;
    background: var(--accent);
    transition: width 0.3s linear;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 2px;
}

.tab-btn {
    padding: 6px 14px;
    border-radius: 6px 6px 0 0;
    border-bottom: 2px solid transparent;
    font-size: 13px;
}

.tab-btn.active {
    background: var(--bg);
    border-bottom-color: var(--accent);
    color: var(--accent);
}

/* Trend indicators */
.card-trend {
    font-size: 11px;
    font-weight: 600;
    margin-right: 4px;
}

.trend-up { color: var(--critical); }
.trend-down { color: var(--ok); }
.trend-flat { color: var(--text-dim); }

/* Copy button */
.btn-copy {
    padding: 1px 5px;
    font-size: 10px;
    color: var(--text-dim);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s;
    margin-left: 6px;
    flex-shrink: 0;
    line-height: 1.3;
}

.card-error-line:hover .btn-copy,
.summary-row:hover .btn-copy,
.log-line:hover .btn-copy {
    opacity: 1;
}

.btn-copy:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.btn-copy.copied {
    color: var(--ok);
    border-color: var(--ok);
}

/* Health metrics */
.card-health {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.health-metric {
    font-size: 11px;
    color: var(--text-dim);
}

.health-warn {
    color: var(--warning);
    font-weight: 600;
}

.health-crit {
    color: var(--critical);
    font-weight: 600;
}

/* Card top errors */
.card-top-errors {
    margin-top: 8px;
    border-top: 1px solid var(--border);
    padding-top: 6px;
}

.card-error-line {
    display: flex;
    align-items: center;
    font-size: 11px;
    color: var(--text-dim);
    white-space: nowrap;
    line-height: 1.6;
}

.card-error-line .error-msg {
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.error-count {
    color: var(--critical);
    font-weight: 600;
    margin-right: 4px;
}

.card-message {
    font-size: 11px;
    color: var(--unreachable);
    font-style: italic;
    margin-top: 6px;
}

/* Summary view */
.summary-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
}

.summary-row:hover {
    background: rgba(255, 255, 255, 0.03);
}

.summary-count {
    color: var(--critical);
    font-weight: 700;
    font-size: 14px;
    min-width: 40px;
    flex-shrink: 0;
}

.summary-source {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    background: var(--bg);
    flex-shrink: 0;
}

.summary-msg {
    flex: 1;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.summary-ago {
    color: var(--text-dim);
    font-size: 11px;
    flex-shrink: 0;
    white-space: nowrap;
}

.summary-detail {
    display: none;
    padding: 0 12px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    max-height: 300px;
    overflow-y: auto;
}

.summary-detail.expanded {
    display: block;
}

.summary-logline {
    font-size: 11px;
    padding: 4px 8px;
    border-bottom: 1px solid var(--border);
    word-break: break-all;
    line-height: 1.5;
}

.summary-logline:last-child {
    border-bottom: none;
}

.summary-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--ok);
    font-size: 16px;
}