/* ============================================================
   Kula Dashboard Styles
   ============================================================ */

@font-face {
    font-family: 'Inter';
    src: url('fonts/Inter/Inter-VariableFont_opsz,wght.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.85);
    --bg-card-hover: rgba(17, 24, 39, 0.95);
    --border-color: rgba(55, 65, 81, 0.5);
    --border-glow: rgba(59, 130, 246, 0.3);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-orange: #f97316;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --gauge-bg: rgba(30, 41, 59, 0.6);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --chart-grid: rgba(55, 65, 81, 0.2);
    --chart-text: #94a3b8;
}

body.light-mode {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --border-color: rgba(203, 213, 225, 0.8);
    --border-glow: rgba(59, 130, 246, 0.2);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --gauge-bg: rgba(226, 232, 240, 0.8);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.05);
    --chart-grid: rgba(203, 213, 225, 0.4);
    --chart-text: #64748b;
}

body.light-mode .hostname,
body.light-mode .sampling-info {
    background: none;
    color: inherit;
}

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

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
}

.hidden {
    display: none !important;
}

/* ---- Login ---- */
.login-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 3rem;
    text-align: center;
    width: 360px;
    max-width: 90vw;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: fadeInUp 0.4s ease;
}

@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.5rem;
    }
}

.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.login-logo img {
    max-width: 100px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 0.05rem rgba(0, 237, 250, 0.5));
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.login-card p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.login-card input {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.login-card input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.login-card button {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}

.login-card button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.login-error {
    margin-top: 1rem;
    color: var(--accent-red);
    font-size: 0.85rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Header ---- */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-right {
    flex-wrap: wrap;
    justify-content: flex-end;
}

.logo {
    font-size: 1.5rem;
}

.logo img {
    width: 3rem;
    height: 3rem;
    object-fit: contain;
    filter: drop-shadow(0 0 0.02rem rgba(0, 237, 250, 0.711));
    vertical-align: middle;
}

.header h1 {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 0.15em;
}

.header-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.15s;
}

.header-link:hover {
    opacity: 0.8;
}

.hostname,
.sys-os,
.sys-kernel,
.sys-arch {
    padding: 0.2rem 0.6rem;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 100px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.uptime {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.clock {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.connected {
    background: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
    animation: pulse 2s infinite;
}

.status-dot.disconnected {
    background: var(--accent-red);
    box-shadow: 0 0 6px var(--accent-red);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    padding: 0.3rem 0.5rem;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.15s;
}

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

.btn-icon.paused {
    border-color: var(--accent-yellow);
    color: var(--accent-yellow);
    background: rgba(245, 158, 11, 0.1);
}

.btn-icon.layout-active {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.1);
}

.btn-game {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-game:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.1);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

/* ---- Alert System ---- */
.alert-container {
    position: relative;
    display: inline-flex;
}

.btn-alert {
    position: relative;
}

.btn-alert.no-alerts {
    opacity: 0.75;
    filter: grayscale(1);
}

.btn-alert.has-alerts {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    background: rgba(249, 115, 22, 0.1);
    animation: alertPulse 2s infinite;
}

@keyframes alertPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.2);
    }

    50% {
        box-shadow: 0 0 8px 2px rgba(249, 115, 22, 0.3);
    }
}

.alert-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--accent-red);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    line-height: 1;
}

.alert-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 320px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    overflow: hidden;
    animation: fadeInUp 0.2s ease;
}

.chart-settings-dropdown {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    width: 220px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    padding: 1rem;
    cursor: default;
    text-align: left;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: fadeInUp 0.15s ease-out;
}

.alert-dropdown-header {
    padding: 0.6rem 1rem;
    font-weight: 600;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.alert-list {
    max-height: 240px;
    overflow-y: auto;
}

.alert-item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid rgba(55, 65, 81, 0.3);
    font-size: 0.8rem;
}

.alert-item:last-child {
    border-bottom: none;
}

.alert-icon {
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 0.05rem;
}

.alert-item-body {
    flex: 1;
}

.alert-item-title {
    font-weight: 500;
    color: var(--text-primary);
}

.alert-item-detail {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    margin-top: 0.15rem;
}

.alert-empty {
    padding: 1.5rem 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ---- Gauges ---- */
.gauges-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
    padding: 1rem 1.5rem;
}

.gauge-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.gauge-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}




.gauge-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.gauge-value {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0.15rem;
}

/* Ping Test Modal */
.ping-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}
.ping-modal.hidden { display: none; }
.ping-modal-content {
    background: var(--bg-card, #1a1a2e);
    border: 1px solid var(--border, #333);
    border-radius: 12px;
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.ping-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border, #333);
}
.ping-modal-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}
.ping-modal-close {
    background: none;
    border: none;
    color: var(--text-secondary, #888);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0 0.3rem;
    line-height: 1;
}
.ping-modal-close:hover { color: var(--text-primary, #fff); }
.ping-modal-body {
    padding: 1rem 1.5rem;
    overflow-y: auto;
}
.ping-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.ping-btn {
    padding: 0.5rem 1.2rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.15s;
}
.ping-btn-start {
    background: #00c853;
    color: #000;
}
.ping-btn-start:hover { background: #00e676; }
.ping-btn-start:disabled {
    background: #555;
    color: #999;
    cursor: not-allowed;
}
.ping-status {
    font-size: 0.85rem;
    color: var(--text-secondary, #888);
}
.ping-results {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.ping-row {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.8rem;
    background: var(--bg-secondary, #16213e);
    border-radius: 6px;
    font-size: 0.85rem;
    gap: 0.8rem;
}
.ping-row .ping-name {
    flex: 1;
    font-weight: 500;
}
.ping-row .ping-latency {
    font-family: var(--font-mono);
    min-width: 80px;
    text-align: right;
}
.ping-row .ping-bar {
    width: 120px;
    height: 6px;
    background: var(--bg-tertiary, #0f3460);
    border-radius: 3px;
    overflow: hidden;
}
.ping-row .ping-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}
.ping-row .ping-route {
    font-size: 0.7rem;
    color: var(--text-secondary, #888);
    min-width: 60px;
    text-align: center;
}
.ping-excellent { color: #00e676; }
.ping-good { color: #ffeb3b; }
.ping-poor { color: #ff5252; }
.ping-timeout { color: #666; }
.btn-ping-text {
    background: none;
    border: 1px solid var(--border, #444);
    color: var(--text-primary, #eee);
    padding: 0.25rem 0.7rem;
    border-radius: 5px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.btn-ping-text:hover {
    background: var(--text-primary, #eee);
    color: var(--bg-card, #1a1a2e);
}

.gauge-info {
    font-size: 0.65rem;
    color: var(--text-secondary, #888);
    margin-top: 0.1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    opacity: 0.8;
}

/* ---- Sparkline Background ---- */
.sparkline-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.gauge-card > *:not(.sparkline-canvas) {
    position: relative;
    z-index: 1;
}

/* ---- Bar Gauge (alternative layout) ---- */
.bar-gauge-container {
    width: 100%;
    padding: 0.3rem 0;
}

.bar-gauge-track {
    width: 100%;
    height: 16px;
    background: var(--gauge-bg);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.bar-gauge-fill {
    height: 100%;
    border-radius: 8px;
    transition: width 0.3s ease;
    position: relative;
}

.bar-gauge-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    filter: blur(4px);
    opacity: 0.3;
    background: inherit;
}

/* ---- CPU Thread Heatmap ---- */
.thread-heatmap {
    padding: 0.4rem 1.5rem 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.thread-heatmap-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    flex-shrink: 0;
}

.thread-heatmap-inner {
    display: flex;
    gap: 3px;
    flex: 1;
}

.thread-block {
    flex: 1 1 0;
    min-width: 20px;
    height: 22px;
    border-radius: 3px;
    background: var(--gauge-bg, #1a1a2e);
    transition: background-color 0.3s ease;
    position: relative;
    cursor: default;
}

.thread-block .thread-tooltip {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.85);
    color: #fff;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 3px;
    white-space: nowrap;
    pointer-events: none;
    z-index: 10;
    margin-bottom: 4px;
}

.thread-block:hover .thread-tooltip {
    display: block;
}

/* ---- TX IN/OUT dual bar ---- */
#gauge-txio .bar-gauge-track {
    height: 6px;
    margin-bottom: 2px;
}

/* ---- Time Controls ---- */
.time-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.time-presets {
    display: flex;
    gap: 0.25rem;
    align-items: center;
    position: relative;
}

.btn-time-menu {
    display: none;
    font-size: 1.2rem;
    padding: 0.1rem 0.5rem;
}

.time-presets-list {
    display: flex;
    gap: 0.25rem;
    align-items: center;
    flex-wrap: wrap;
}

.time-divider {
    color: var(--border-color);
    font-size: 0.8rem;
    margin: 0 0.15rem;
}

.time-btn {
    padding: 0.3rem 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
}

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

.time-btn.active {
    background: rgba(59, 130, 246, 0.15);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.time-apply {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.time-apply:hover {
    background: rgba(16, 185, 129, 0.25);
}

.time-custom-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.time-input {
    padding: 0.3rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    outline: none;
    transition: border-color 0.2s;
    color-scheme: dark;
}

body.light-mode .time-input {
    color-scheme: light;
}

.time-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.time-sep {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.time-info {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ---- Chart Search (in header) ---- */
.chart-search-input {
    width: 140px;
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, width 0.2s;
}

.chart-search-input:focus {
    width: 200px;
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.chart-search-input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.chart-search-hidden {
    display: none !important;
}

/* ---- Sections ---- */
.section-title {
    padding: 1.5rem 1.5rem 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    opacity: 0.9;
    letter-spacing: 0.5px;
    animation: fadeInUp 0.5s ease;
}

/* ---- Charts Grid ---- */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1rem 1.5rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.chart-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.chart-card.span-2 {
    grid-column: span 2;
}

.chart-header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    gap: 0.5rem;
}

.chart-header h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-subtitle {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.chart-header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.chart-selector {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.1rem 0.3rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    outline: none;
    cursor: pointer;
}

.chart-selector.no-arrow {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: default;
    pointer-events: none;
}

.chart-body {
    padding: 0.75rem;
    height: 220px;
    position: relative;
}

.chart-body canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ---- Expanded Chart ---- */
.chart-card.chart-expanded {
    grid-column: 1 / -1;
}

.chart-card.chart-expanded .chart-body {
    height: 330px;
    /* 220 * 1.5 = 330 */
}

.layout-list .chart-card.chart-expanded {
    grid-column: 1;
}

.layout-list .chart-card.chart-expanded .chart-body {
    height: 390px;
    /* 260 * 1.5 = 390 */
}

/* ---- Expand button in chart header ---- */
.btn-expand-chart {
    font-size: 0.95rem;
    padding: 0.15rem 0.35rem;
    line-height: 1;
    opacity: 0.5;
    transition: opacity 0.15s, border-color 0.15s, color 0.15s;
    margin-left: auto;
    flex-shrink: 0;
}

.btn-expand-chart:hover {
    opacity: 1;
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.chart-card.chart-expanded .btn-expand-chart {
    opacity: 1;
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.1);
}

/* ---- List Layout Mode ---- */
.layout-list .charts-grid {
    grid-template-columns: 1fr;
}

.layout-list .chart-card.span-2 {
    grid-column: span 1;
}

.layout-list .chart-body {
    height: 260px;
}

/* ---- Focus Mode ---- */
.focus-active .chart-card {
    display: none;
}

.focus-active .chart-card.focus-visible:not(.hidden) {
    display: block !important;
}

.focus-selecting .chart-card:not(.hidden) {
    display: block !important;
    cursor: pointer;
    position: relative;
}

.charts-grid.focus-selecting:not(.hidden),
.charts-grid.focus-active:not(.hidden) {
    display: grid !important;
}

.section-title.focus-selecting:not(.hidden) {
    display: block !important;
}

.section-title.focus-active:not(.hidden) {
    display: none !important;
}

.charts-grid.focus-active~.section-title.focus-active+.charts-grid.focus-active {
    padding-top: 0 !important;
}

.focus-hidden {
    display: none !important;
}

.focus-selecting .chart-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--radius);
    z-index: 10;
    pointer-events: none;
    transition: background 0.15s;
}

body.light-mode .focus-selecting .chart-card::after {
    background: rgba(255, 255, 255, 0.4);
}

.focus-selecting .chart-card.focus-selected::after {
    background: rgba(59, 130, 246, 0.15);
    border: 2px solid var(--accent-blue);
}

.focus-selecting .chart-card.focus-selected {
    border-color: var(--accent-blue);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}

.focus-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.5rem 1.5rem;
    background: rgba(59, 130, 246, 0.1);
    border-bottom: 1px solid var(--accent-blue);
    font-size: 0.85rem;
    color: var(--accent-blue);
}

.focus-bar button {
    padding: 0.3rem 1rem;
    border: 1px solid var(--accent-blue);
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.15s;
}

.focus-bar button:hover {
    background: rgba(59, 130, 246, 0.3);
}

.btn-icon.focus-active {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
}

/* ---- Footer ---- */
.sys-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    flex-wrap: wrap;
    gap: 0.75rem;
}

#sys-info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.75rem;
}

.sys-info-item {
    display: inline-flex;
    white-space: nowrap;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s;
}

.footer-sep {
    color: var(--border-color);
    margin: 0 0.5rem;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.sampling-info {
    margin-left: 0.75rem;
    padding: 0.15rem 0.5rem;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 100px;
    font-size: 0.7rem;
    color: var(--accent-cyan);
}

.clock-synced {
    color: var(--accent-green);
}

.clock-not-synced {
    color: var(--accent-red);
}

.loading-spinner {
    display: inline-block;
    margin-left: 0.5rem;
    animation: spin 1s linear infinite;
    font-size: 0.9rem;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

/* ---- Responsive ---- */
@media (max-width: 1400px) {
    .charts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .chart-card.span-2 {
        grid-column: span 2;
    }

    .layout-list .charts-grid {
        grid-template-columns: 1fr;
    }

    .layout-list .chart-card.span-2 {
        grid-column: span 1;
    }
}

@media (max-width: 1000px) {
    .gauges-row {
        grid-template-columns: repeat(3, 1fr);
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-card.span-2 {
        grid-column: span 1;
    }

    .alert-dropdown {
        left: -6rem;
    }
}

@media (max-width: 980px) {
    .header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .header-right {
        justify-content: center;
    }

    .sys-footer {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    #sys-info {
        justify-content: center;
    }
}

@media (max-width: 900px) {
    .btn-time-menu {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .time-presets-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius);
        padding: 0.5rem;
        flex-direction: column;
        z-index: 100;
        box-shadow: var(--shadow-lg);
        margin-top: 0.5rem;
        min-width: 120px;
    }

    #agg-presets-list {
        left: 2.5rem;
    }

    .time-presets-list.open {
        display: flex;
    }

    .time-presets-list .time-btn {
        width: 100%;
        text-align: left;
    }

    .sys-sep.mobile-hidden {
        display: none;
    }

    #agg-desktop-divider {
        display: none;
    }
}

@media (max-width: 600px) {
    .gauges-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .sampling-info {
        display: none;
    }

    .alert-dropdown {
        position: fixed;
        top: 6rem;
        left: 0;
    }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ---- Language Selector ---- */
.header-lang {
    position: relative;
    margin-left: 0.25rem;
}

.lang-dropdown {
    position: relative;
}

.lang-btn {
    font-size: 1rem;
    padding: 0.4rem;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: #c6c6c6;
    transition: opacity 0.2s;
}

.lang-btn:hover {
    opacity: 0.8;
}

.globe-icon {
    display: block;
    flex-shrink: 0;
}

.lang-code {
    font-size: 0.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    opacity: 0.8;
}

.lang-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 140px;
    padding: 0.5rem 0;
    display: flex;
    flex-direction: column;
    max-height: 70vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.lang-menu.hidden {
    display: none;
}

.lang-option {
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    text-align: left;
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
    width: 100%;
}

.lang-option:hover {
    background: var(--bg-hover);
}

.lang-option.active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    font-weight: 600;
}

[dir="rtl"] .lang-option {
    text-align: right;
}

@media (max-width: 640px) {
    .header-lang {
        order: 10;
        margin: 0;
    }
}
/* ============================================================
   OpenClaw Agents Section
   ============================================================ */
.agents-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 0 1rem 1rem;
}

.agents-col {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.agent-card {
    border-radius: 8px;
    padding: 0.7rem 0.9rem;
    transition: transform 0.15s, box-shadow 0.15s;
}

.agent-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.agent-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.25rem;
}

.agent-icon {
    font-size: 0.85rem;
    line-height: 1;
}

.agent-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary, #e0e0e0);
}

.agent-models {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.2rem;
    margin-bottom: 0.4rem;
    line-height: 1.4;
}

.agent-model-tag {
    font-size: 0.65rem;
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    background: rgba(255,255,255,0.05);
    color: var(--text-secondary, #888);
    white-space: nowrap;
    transition: all 0.2s;
}

.agent-model-tag.primary {
    color: var(--text-secondary, #aaa);
}

.agent-model-tag.active {
    background: rgba(76,175,80,0.25);
    color: #4caf50;
    font-weight: 600;
    box-shadow: 0 0 0 1px rgba(76,175,80,0.4);
}

.agent-model-sep {
    font-size: 0.6rem;
    color: var(--text-secondary, #555);
    margin: 0 0.1rem;
}

.agent-stats {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.agent-stat {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.agent-stat-label {
    font-size: 0.68rem;
    color: var(--text-secondary, #888);
    width: 22px;
    flex-shrink: 0;
}

.agent-ctx-bar {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.08);
    border-radius: 2px;
    overflow: hidden;
}

.agent-ctx-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.5s ease;
}

.agent-stat-value {
    font-size: 0.7rem;
    color: var(--text-secondary, #aaa);
    width: 28px;
    text-align: right;
    flex-shrink: 0;
}

.agent-stat-row {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.agent-stat-item {
    font-size: 0.7rem;
    color: var(--text-secondary, #888);
}

.agents-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 1.5rem;
    color: var(--text-secondary, #888);
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .agents-grid {
        grid-template-columns: 1fr;
    }
}