@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
    --bg: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --panel: #1e293bda;
    --panel-strong: #1e293bf2;
    --panel-light: #33415580;
    --line: rgba(148, 163, 184, 0.12);
    --line-strong: rgba(148, 163, 184, 0.25);
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #06b6d4;
    --accent-2: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --gradient-primary: linear-gradient(135deg, #06b6d4, #8b5cf6);
    --gradient-success: linear-gradient(135deg, #10b981, #06b6d4);
    --gradient-danger: linear-gradient(135deg, #ef4444, #f59e0b);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
}

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

html, body {
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
}

body {
    background: var(--bg);
}

/* === Shell === */
.shell { max-width: 1440px; margin: 0 auto; padding: 20px; }

/* === Topbar === */
.topbar {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.brand { display: flex; flex-direction: column; gap: 8px; }

.brand-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-subtitle {
    color: var(--text-secondary);
    font-size: 13px;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }

.chip {
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--line);
    background: var(--panel-light);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.chip .dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    display: inline-block;
}
.chip .dot.ok { background: var(--success); }
.chip .dot.warn { background: var(--warning); }
.chip .dot.off { background: var(--text-muted); }

.header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* === Buttons === */
.btn {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--panel-light);
    color: var(--text);
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
}
.btn:hover {
    border-color: var(--line-strong);
    background: var(--bg-tertiary);
}
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}
.btn-primary:hover {
    opacity: 0.9;
}
.btn-secondary {
    background: var(--panel-light);
    color: var(--text-secondary);
}
.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    border: none;
}
.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: var(--radius-xs); }
.btn-warn { background: linear-gradient(135deg, #f59e0b, #d97706); color: white; border: none; }

/* === Tabs === */
.tabs {
    margin-top: 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 6px;
    display: flex;
    gap: 4px;
    overflow-x: auto;
}

.tab {
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
    cursor: pointer;
    font-family: inherit;
}
.tab:hover { color: var(--text); background: rgba(148, 163, 184, 0.08); }
.tab.active {
    background: var(--gradient-primary);
    color: white;
}

/* === Panels === */
.panel {
    display: none;
    margin-top: 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.panel.active {
    display: block;
}

/* === Cards Grid === */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.card {
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px;
    background: var(--panel-strong);
}
.card:hover { border-color: var(--line-strong); }

.card .card-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
}

.card .card-value {
    margin-top: 8px;
    font-size: 28px;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
}
.card .card-value.good { color: var(--success); }
.card .card-value.bad { color: var(--danger); }
.card .card-value.warn { color: var(--warning); }
.card .card-value.info { color: var(--info); }
.card .card-value.accent { color: var(--accent); }
.card .card-value.neutral { color: var(--text); }

.card .card-sub {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

/* === Section blocks === */
.section-title {
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 700;
}

.block {
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--panel-strong);
    padding: 16px;
}
.block h3 { margin: 0 0 12px; font-size: 15px; font-weight: 700; }

.split {
    margin-top: 14px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 14px;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* === Mini list === */
.mini-list {
    list-style: none;
    display: grid;
    gap: 6px;
}
.mini-list li {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}
.mini-list li:hover { border-color: var(--line-strong); }
.mini-list li strong {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 700;
}

/* === Tables === */
.table-wrap {
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: auto;
    background: var(--panel-strong);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th, td {
    border-bottom: 1px solid var(--line);
    padding: 10px 12px;
    vertical-align: middle;
    text-align: left;
}

th {
    color: var(--text-muted);
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(15, 23, 42, 0.3);
}

tr:last-child td { border-bottom: 0; }
tr:hover td { background: rgba(148, 163, 184, 0.03); }

/* === Badges === */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border-radius: 999px;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 700;
}
.badge.success { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge.danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge.warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.badge.info { background: rgba(59, 130, 246, 0.15); color: var(--info); }
.badge.neutral { background: rgba(148, 163, 184, 0.1); color: var(--text-secondary); }

/* Status dots */
.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.status-dot.ok { background: var(--success); }
.status-dot.err { background: var(--danger); }
.status-dot.disabled { background: var(--text-muted); }

.pulse-dot { opacity: 0.85; }

.text-red { color: var(--danger); }
.text-orange { color: var(--warning); }
.row-failed td { background-color: rgba(239, 68, 68, 0.08) !important; }

/* === Hourly Chart === */
.hourly-chart {
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 80px;
    padding-top: 8px;
}
.hourly-bar {
    flex: 1;
    min-width: 0;
    border-radius: 3px 3px 0 0;
    position: relative;
    cursor: default;
}
.hourly-bar.success-bar { background: var(--gradient-success); opacity: 0.8; }
.hourly-bar.failed-bar { background: var(--gradient-danger); opacity: 0.8; }
.hourly-bar:hover { opacity: 1; }
.hourly-labels {
    display: flex;
    gap: 3px;
    margin-top: 4px;
}
.hourly-labels span {
    flex: 1;
    text-align: center;
    font-size: 9px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

/* === Usage Cards === */
.usage-empty {
    text-align: center;
    padding: 32px 20px;
    color: var(--text-muted);
    font-size: 14px;
}
.usage-empty.error { color: var(--danger); }

.usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.usage-card {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px 14px;
    background: var(--panel-strong);
}
.usage-card:hover { border-color: var(--line-strong); }
.usage-card .usage-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 8px;
}
.usage-card .usage-ip {
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.usage-card .usage-main { margin-top: 4px; }
.usage-card .usage-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    font-size: 11px;
    color: var(--text-muted);
}
.usage-card .usage-pct {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
.usage-card .usage-pct.good { color: var(--success); }
.usage-card .usage-pct.warn { color: var(--warning); }
.usage-card .usage-pct.bad { color: var(--danger); }

.usage-card-pending {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 56px;
}
.usage-card-pending .usage-name { margin-bottom: 4px; }
.usage-card-pending .usage-badge {
    font-size: 12px;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}
.usage-card-error .usage-badge { font-size: 11px; }
.usage-card-error .usage-err-msg {
    font-size: 11px;
    color: var(--danger);
    margin-top: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.progress-bar-wrap {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    border-radius: 3px;
}
.progress-bar-fill.good { background: var(--gradient-success); }
.progress-bar-fill.warn { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.progress-bar-fill.bad { background: var(--gradient-danger); }

/* === Forms === */
.form-group { margin-bottom: 14px; }
.form-group.inline-flex {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0;
}
.form-group.inline-flex > * {
    margin-bottom: 0;
}
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: var(--bg-secondary);
    color: var(--text);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* === Mono === */
.mono { font-family: 'JetBrains Mono', monospace; font-size: 12px; }

/* === Toast === */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    max-width: 380px;
}
.toast-info { background: #0891b2; color: white; }
.toast-error { background: #dc2626; color: white; }
.toast-success { background: #059669; color: white; }

/* === Modal === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--line);
    padding: 28px;
    border-radius: var(--radius);
    min-width: 420px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
}
.modal-content h3 { margin-bottom: 20px; font-size: 18px; }
.modal-actions { margin-top: 24px; display: flex; gap: 12px; justify-content: flex-end; }

/* === Config table === */
.config-table { width: 100%; max-width: 600px; }
.config-table td { padding: 10px 12px; }
.config-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }

/* === Toolbar === */
.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
    align-items: center;
}

/* === Provider actions === */
.provider-actions { margin-bottom: 16px; display: flex; gap: 8px; flex-wrap: wrap; }

/* === Responsive === */
@media (max-width: 1050px) {
    .split, .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .shell { padding: 12px; }
    .topbar { padding: 16px; flex-direction: column; align-items: flex-start; }
    .brand-title { font-size: 22px; }
    .header-actions { width: 100%; }
    .header-actions .btn { flex: 1; }
    .cards { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
    .card .card-value { font-size: 22px; }
}