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

:root {
    --primary: #00bcd4;
    --primary-dark: #0097a7;
    --primary-glow: rgba(0,188,212,0.15);
    --danger: #ff1744;
    --danger-bg: rgba(255,23,68,0.08);
    --success: #00e676;
    --success-bg: rgba(0,230,118,0.08);
    --warning: #ff9100;
    --warning-bg: rgba(255,145,0,0.08);
    --bg: #0f1419;
    --bg-secondary: #151c24;
    --card-bg: #1a2332;
    --card-bg-hover: #1f2a3a;
    --text: #e0e6ed;
    --text-light: #7a8a9a;
    --text-muted: #4a5568;
    --border: #2a3a4a;
    --border-light: #1e2d3d;
    --input-bg: #0f1419;
    --input-border: #2a3a4a;
    --input-focus: #00bcd4;
    --shadow: 0 2px 8px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.navbar {
    display: flex;
    align-items: center;
    background: #0d1117;
    color: white;
    padding: 0 20px;
    height: 56px;
    box-shadow: 0 1px 0 var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-logo {
    height: 36px;
    width: auto;
    margin-right: 12px;
    border-radius: 4px;
}

.nav-brand {
    font-size: 1.3em;
    font-weight: 700;
    margin-right: 12px;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.nav-mode-badge {
    font-size: 0.65em;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 2px 8px;
    border-radius: 4px;
    margin-right: 28px;
    background: var(--primary);
    color: #0d1b2a;
    vertical-align: middle;
}

.mode-banner {
    padding: 8px 20px;
    font-size: 0.9em;
    font-weight: 600;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.mode-banner.mode-hub {
    background: rgba(0,188,212,0.08);
    color: var(--primary);
}

.mode-banner.mode-edge {
    background: var(--success-bg);
    color: var(--success);
}

.edge-status {
    font-weight: 700;
    font-size: 0.85em;
    padding: 2px 8px;
    border-radius: 10px;
}
.edge-status.online {
    color: var(--success);
    background: var(--success-bg);
}
.edge-status.offline {
    color: var(--text-light);
    background: rgba(255,255,255,0.05);
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    padding: 16px 14px;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
    font-size: 0.9em;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text);
    background: rgba(255,255,255,0.04);
}

.nav-links a.active {
    color: var(--primary);
    background: rgba(0,188,212,0.06);
    border-bottom: 2px solid var(--primary);
    font-weight: 600;
}

.nav-right {
    display: flex;
    align-items: center;
    margin-left: auto;
    gap: 8px;
    font-size: 0.85em;
}

.nav-link-admin {
    color: var(--primary);
    text-decoration: none;
    padding: 16px 14px;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
    font-weight: 600;
    font-size: 0.85em;
}

.nav-link-admin:hover {
    color: white;
    background: rgba(255,255,255,0.04);
}

.nav-link-admin.active {
    color: white;
    background: rgba(0,188,212,0.1);
    border-bottom: 2px solid var(--primary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 6px currentColor;
}

.status-dot.connected { background: var(--success); color: var(--success); }
.status-dot.disconnected { background: var(--danger); color: var(--danger); }

.container {
    max-width: 1400px;
    margin: 20px auto;
    padding: 0 20px;
}

.section { display: none; }
.section.active { display: block; }

h2 {
    margin-bottom: 20px;
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border);
    text-align: center;
    transition: border-color 0.2s;
}

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

.stat-label {
    font-size: 0.8em;
    color: var(--text-light);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.stat-value {
    font-size: 2em;
    font-weight: 700;
    color: var(--primary);
    font-family: 'JetBrains Mono', 'Consolas', monospace;
}

.stat-value-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 4px 0;
}

.stat-threshold {
    font-size: 0.6em;
    font-weight: 600;
    white-space: nowrap;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
}

.stat-th-max { color: var(--danger); }

.stat-th-min { color: var(--primary); }

#live-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    align-items: start;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.plc-name-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}
.plc-name-link:hover {
    text-decoration: underline;
}

#plcs-table td:last-child,
#tags-table td:last-child {
    white-space: nowrap;
    text-align: right;
    width: 240px;
}

.plc-separator {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0 2px 0;
    margin: 4px 0 0 0;
    border-bottom: 1px solid var(--border);
}

.plc-sep-name {
    font-weight: 700;
    font-size: 0.9em;
    color: var(--primary);
}

.plc-sep-detail {
    font-size: 0.78em;
    color: var(--text-light);
}

.value-alarm-high .stat-value,
.value-alarm-low .stat-value {
    color: var(--danger) !important;
}

.value-alarm-high .stat-label,
.value-alarm-low .stat-label {
    color: var(--danger);
}

.value-alarm-high,
.value-alarm-low {
    border: 1px solid var(--danger);
    background: var(--danger-bg) !important;
}

.live-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 16px;
    border: 1px solid var(--border);
}

.live-card h3 {
    font-size: 1em;
    margin-bottom: 12px;
    color: var(--text);
    border-bottom: 2px solid var(--primary);
    padding-bottom: 8px;
}

.tag-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-light);
}

.tag-name {
    color: var(--text-light);
    font-size: 0.9em;
}

.tag-quality {
    font-size: 0.75em;
    color: var(--text-light);
    margin-left: 6px;
}

.tag-value {
    font-weight: bold;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.95em;
}

.tag-value.alarm { color: var(--danger); }
.tag-value.good { color: var(--success); }

.form-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    align-items: center;
}

.form-inline .btn-primary {
    margin-left: auto;
}

input, select {
    padding: 8px 12px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font-size: 0.9em;
    background: var(--input-bg);
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85em;
    transition: all 0.2s;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.btn:disabled, .btn.muted {
    background: var(--border);
    color: var(--text-muted);
    cursor: default;
    opacity: 0.5;
}

.btn-primary {
    background: var(--primary);
    color: #0d1b2a;
}

#btn-realtime {
    padding: 5px 12px;
    font-size: 0.78em;
    white-space: nowrap;
}

.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 0 12px var(--primary-glow); }

.btn-primary.active {
    background: var(--primary-dark);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover { background: #d50000; box-shadow: 0 0 12px rgba(255,23,68,0.3); }

.btn-success {
    background: var(--border);
    color: var(--text-muted);
}

.btn-success.on {
    background: var(--success);
    color: #0d1b2a;
    box-shadow: 0 0 12px rgba(0,230,118,0.2);
}

.btn-warning {
    background: var(--border);
    color: var(--text-muted);
}

.btn-warning.on {
    background: var(--warning);
    color: #0d1b2a;
    box-shadow: 0 0 12px rgba(255,145,0,0.2);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.data-table th {
    background: #0d1117;
    color: var(--text-light);
    padding: 12px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9em;
}

.data-table tr:hover {
    background: var(--card-bg-hover);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
    font-style: italic;
}

.login-overlay {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #04080e 0%, #0a1628 30%, #0d1b2a 60%, #0a1020 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    overflow: hidden;
}

.login-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 15% 25%, rgba(0,188,212,0.06) 0%, transparent 45%),
        radial-gradient(ellipse at 85% 75%, rgba(255,191,0,0.04) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 50%, rgba(0,188,212,0.02) 0%, transparent 60%);
    pointer-events: none;
    animation: overlayShift 20s ease-in-out infinite alternate;
}

@keyframes overlayShift {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

#login-circuit-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
    pointer-events: none;
}

.login-slogan {
    position: absolute;
    bottom: 48px;
    left: 0;
    right: 0;
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 1.1em;
    font-weight: 300;
    letter-spacing: 2px;
    font-style: italic;
    pointer-events: none;
    z-index: 1001;
    text-shadow: 0 0 24px rgba(0,188,212,0.25), 0 0 60px rgba(0,188,212,0.08);
    animation: sloganPulse 5s ease-in-out infinite;
}

@keyframes sloganPulse {
    0%, 100% { opacity: 0.4; letter-spacing: 2px; }
    50% { opacity: 0.65; letter-spacing: 3px; }
}

.login-box {
    background: rgba(12,20,32,0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 48px 44px 40px;
    border-radius: 18px;
    box-shadow:
        0 8px 48px rgba(0,0,0,0.6),
        0 0 100px rgba(0,188,212,0.06),
        inset 0 1px 0 rgba(0,188,212,0.1);
    text-align: center;
    width: 400px;
    border: 1px solid rgba(0,188,212,0.12);
    z-index: 1001;
    position: relative;
    animation: loginFadeIn 0.7s ease-out;
}

@keyframes loginFadeIn {
    from { opacity: 0; transform: translateY(24px) scale(0.96); filter: blur(4px); }
    to { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

.login-box h2 {
    font-size: 2.4em;
    color: var(--primary);
    margin-bottom: 4px;
    letter-spacing: 4px;
    text-shadow: 0 0 40px rgba(0,188,212,0.35), 0 0 80px rgba(0,188,212,0.1);
    font-weight: 600;
}

.login-box p {
    color: rgba(255,255,255,0.45);
    margin-bottom: 28px;
    font-size: 0.85em;
    letter-spacing: 0.5px;
}

.login-box input {
    width: 100%;
    margin-bottom: 14px;
    padding: 13px 16px;
    background: rgba(8,14,22,0.85);
    border: 1px solid rgba(0,188,212,0.15);
    border-radius: 10px;
    color: var(--text);
    font-size: 0.95em;
    transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}

.login-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 16px rgba(0,188,212,0.18), inset 0 0 12px rgba(0,188,212,0.05);
    background: rgba(10,18,28,0.9);
}

.login-box input::placeholder {
    color: rgba(255,255,255,0.25);
}

.login-box button {
    margin-top: 4px;
}

.login-error {
    color: var(--danger);
    margin-top: 14px;
    font-size: 0.9em;
    min-height: 1.2em;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
    box-shadow: 0 0 6px currentColor;
}

.indicator-green { background: var(--success); color: var(--success); }
.indicator-red { background: var(--danger); color: var(--danger); }

.alarm-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 12px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--text-muted);
}

.alarm-card.alarm-critical {
    border-left-color: var(--danger);
    background: var(--danger-bg);
    animation: alarm-pulse 2s infinite;
}

.alarm-card.alarm-high {
    border-left-color: var(--danger);
    background: rgba(255,23,68,0.04);
}

.alarm-card.alarm-medium {
    border-left-color: var(--warning);
    background: var(--warning-bg);
}

.alarm-card.alarm-low {
    border-left-color: var(--primary);
    background: rgba(0,188,212,0.04);
}

.alarm-header {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alarm-detail {
    font-size: 0.85em;
    color: var(--text-light);
    margin-bottom: 10px;
}

.alarm-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.alarm-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75em;
    font-weight: 600;
    color: white;
}

.alarm-badge-high { background: var(--danger); }
.alarm-badge-low { background: var(--primary); }

.alarm-badge-high {
    background: var(--danger);
}

.alarm-badge-low {
    background: var(--primary);
}

@keyframes alarm-pulse {
    0%, 100% { background-color: var(--danger-bg); }
    50% { background-color: rgba(255,23,68,0.15); }
}

.export-date-row {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
}

.export-date-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.export-date-group label {
    font-size: 0.8em;
    font-weight: 600;
    color: var(--text-light);
}

.export-date-group input[type="datetime-local"] {
    min-width: 220px;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-light);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.04);
    border-color: var(--primary);
    color: var(--primary);
}

.tag-panel-header {
    position: relative;
    margin-bottom: 16px;
    text-align: center;
    min-height: 44px;
}

.tag-panel-header h3 {
    margin: 0;
    font-size: 2em;
    line-height: 1.3;
}

.tag-panel-header > div:last-child {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.tag-form-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
}

.tag-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 160px;
    flex: 1;
}

.tag-field label {
    font-size: 0.8em;
    font-weight: 600;
    color: var(--text-light);
}

.tag-field-btn {
    justify-content: flex-end;
}

#tags-table .tag-threshold {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-weight: 600;
}

#tags-table .tag-threshold.high {
    color: var(--danger);
}

#tags-table .tag-threshold.low {
    color: var(--primary);
}

.discover-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.discover-header h4 {
    margin: 0;
}

#discover-list {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    max-height: 350px;
    overflow-y: auto;
}

.discover-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: background 0.15s;
}

.discover-item:hover {
    background: var(--card-bg-hover);
}

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

.discover-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.discover-item.already-added {
    opacity: 0.5;
}

.discover-item .disc-name {
    font-weight: 600;
    min-width: 160px;
    color: var(--text);
}

.discover-item .disc-node {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.85em;
    color: var(--text-light);
    min-width: 120px;
}

.discover-item .disc-type {
    font-size: 0.8em;
    color: #0d1b2a;
    background: var(--primary);
    padding: 1px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.discover-item .disc-value {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.85em;
    color: var(--success);
    margin-left: auto;
}

.discover-item .disc-added {
    font-size: 0.8em;
    color: var(--text-light);
    font-style: italic;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-card {
    background: var(--card-bg);
    border-radius: 14px;
    width: 480px;
    max-width: 90vw;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    margin: 0;
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    color: var(--text-light);
    padding: 0 4px;
    transition: color 0.2s;
}

.btn-close:hover {
    color: var(--danger);
}

.modal-card form {
    padding: 20px 24px;
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 0.9em;
}

.form-group input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font-size: 0.95em;
    background: var(--input-bg);
    color: var(--text);
}

.form-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font-size: 0.95em;
    background: var(--input-bg);
    color: var(--text);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.manage-plc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 6px;
    font-size: 0.9em;
}

.manage-plc-item span {
    font-weight: 500;
}

.manage-plc-item small {
    color: var(--text-light);
    font-size: 0.85em;
}

.manage-plc-item .btn {
    padding: 3px 10px;
    font-size: 0.8em;
}

/* ============ HISTORY SECTION ============ */

.history-toolbar {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    margin-bottom: 14px;
}

.history-selectors {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: flex-end;
}

.h-select-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.h-select-group label {
    font-size: 0.75em;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.h-select-group select {
    min-width: 160px;
}

.chart-type-btns {
    display: flex;
    gap: 4px;
    background: var(--border);
    border-radius: 6px;
    padding: 3px;
}

.ct-btn {
    width: 34px;
    height: 30px;
    border: none;
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: all 0.15s;
}

.ct-btn:hover {
    color: var(--primary);
    background: var(--primary-glow);
}

.ct-btn.active {
    background: var(--primary);
    color: #0d1b2a;
    box-shadow: 0 0 10px var(--primary-glow);
}

.zoom-controls {
    display: flex;
    gap: 4px;
}

.zoom-btn {
    width: 34px;
    height: 30px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: all 0.15s;
}

.zoom-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-glow);
}

.zoom-btn:active {
    transform: scale(0.95);
}

.time-scrollbar-wrap {
    margin-top: 8px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.time-scrollbar-wrap span {
    font-size: 11px;
    color: var(--text-light);
    white-space: nowrap;
}

.time-scroll-arrow {
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--primary);
    font-size: 14px;
    padding: 2px 8px;
    border-radius: 4px;
    cursor: pointer;
    line-height: 1;
}

.time-scroll-arrow:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary-dark);
}

.time-scroll-arrow:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.time-scrollbar {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.time-scrollbar::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.time-scrollbar::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.history-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 20px;
}

@media (max-width: 900px) {
    .history-content { grid-template-columns: 1fr; }
}

.history-chart-wrap {
    background: var(--card-bg);
    border-radius: 10px;
    border: 1px solid var(--border);
    padding: 20px;
}

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

.chart-header h3 {
    margin: 0;
    font-size: 1em;
    color: var(--text);
}

.live-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.7em;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: background 0.3s, color 0.3s;
    white-space: nowrap;
    flex-shrink: 0;
}
.live-badge--on {
    background: var(--success-bg);
    color: var(--success);
}
.live-badge--off {
    background: var(--danger-bg);
    color: var(--danger);
}

.live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    animation: live-blink 1.5s infinite;
}

@keyframes live-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.chart-canvas-container {
    position: relative;
    width: 100%;
    height: 480px;
}

.chart-canvas-container > div {
    width: 100%;
    height: 100%;
}

#history-mini-table {
    margin-top: 16px;
    max-height: 180px;
    overflow-y: auto;
    border-radius: 6px;
    border: 1px solid var(--border);
}

#history-mini-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82em;
}

#history-mini-table th {
    background: var(--bg-secondary);
    padding: 6px 10px;
    text-align: left;
    font-weight: 600;
    color: var(--text-light);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
}

#history-mini-table td {
    padding: 5px 10px;
    border-bottom: 1px solid var(--border-light);
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.95em;
}

#history-mini-table tr:hover td {
    background: var(--card-bg-hover);
}

.history-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-card {
    background: var(--card-bg);
    border-radius: 10px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.sidebar-card-header {
    background: #0d1117;
    color: var(--text-light);
    padding: 10px 16px;
    font-size: 0.75em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid var(--border);
}

.live-value-display {
    padding: 20px 16px 8px;
    text-align: center;
}

.live-big-number {
    font-size: 2.8em;
    font-weight: 700;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    color: var(--primary);
    line-height: 1;
}

.live-unit {
    font-size: 0.9em;
    color: var(--text-light);
    margin-left: 4px;
}

.live-meta {
    padding: 0 16px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.live-quality-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.7em;
    font-weight: 600;
    background: var(--border);
    color: var(--text-light);
}

.live-quality-badge.good {
    background: var(--success-bg);
    color: var(--success);
}

.live-quality-badge.bad {
    background: var(--danger-bg);
    color: var(--danger);
}

.live-ts {
    font-size: 0.7em;
    color: var(--text-muted);
}

.history-thresholds-row {
    display: flex;
    gap: 14px;
    padding: 12px 20px 0;
    border-top: 1px solid var(--border);
    margin-top: 12px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.ht-separator {
    width: 1px;
    height: 36px;
    background: var(--border);
    align-self: center;
    flex-shrink: 0;
}

.ht-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.ht-item label {
    font-size: 0.72em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
}

.ht-high label { color: var(--danger); }
.ht-low label { color: var(--primary); }

.ht-input-wrap {
    display: flex;
    gap: 6px;
}

.ht-input-wrap input {
    width: 100px;
    padding: 6px 10px;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.92em;
    border-left: 3px solid var(--danger);
}

.ht-low .ht-input-wrap input {
    border-left-color: var(--primary);
}

.ht-save {
    padding: 5px 10px !important;
    font-size: 0.75em !important;
    white-space: nowrap;
}

.ht-status {
    font-size: 0.7em;
    min-height: 1em;
    color: var(--success);
}

.tag-info-grid {
    padding: 12px 16px;
}

.ti-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid var(--border-light);
}

.ti-row:last-child { border-bottom: none; }

.ti-label {
    font-size: 0.78em;
    color: var(--text-light);
}

.ti-value {
    font-size: 0.82em;
    font-weight: 500;
    color: var(--text);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: right;
}

.ti-mono {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.78em;
}

.history-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.history-empty p {
    margin-top: 12px;
    font-size: 0.95em;
    color: var(--text-light);
}

/* ============ HISTORIAL V2: TENDENCIA EN VIVO ============ */

.history-shell {
    max-width: 1280px;
    margin: 0 auto;
}

.history-toolbar--minimal {
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: none;
    background: var(--card-bg);
}

.history-period-hidden {
    display: none;
}

.history-window-buttons {
    display: flex;
    gap: 4px;
    margin-left: auto;
    align-items: center;
}

.history-window-btn {
    min-width: 0;
    padding: 5px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.78em;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.history-window-btn:hover,
.history-window-btn.active {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 16px var(--primary-glow);
}

.history-content--single {
    display: block;
}

.history-chart-wrap--realtime {
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: none;
    padding: 24px 28px;
    background: var(--card-bg);
}

.chart-header--realtime {
    gap: 16px;
    align-items: flex-start;
}

.chart-header--realtime h3 {
    font-size: 1.35rem;
    margin-bottom: 4px;
}

.history-subtitle {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
    font-weight: 600;
}

.history-range-label {
    align-self: flex-end;
    color: var(--text-light);
    font-weight: 600;
    white-space: nowrap;
}

.history-live-cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(120px, 1fr));
    gap: 8px;
    margin: 10px 0 12px;
}

.history-live-card {
    border-radius: 10px;
    background: var(--bg-secondary);
    padding: 4px 14px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 36px;
}

.history-live-card-label {
    color: var(--text-light);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.history-live-card-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    white-space: nowrap;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
}

.history-live-card-unit {
    margin-left: 2px;
    color: var(--text-light);
    font-size: 0.75rem;
    font-weight: 600;
}

.history-live-card.value-alarm-high,
.history-live-card.value-alarm-low {
    background: var(--danger-bg);
    border-color: rgba(255,23,68,0.28);
}

.history-live-card.value-alarm-high .history-live-card-value,
.history-live-card.value-alarm-low .history-live-card-value {
    color: var(--danger);
}

.chart-canvas-container--realtime {
    height: 430px;
}

.history-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 14px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.history-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.history-legend-item span {
    width: 13px;
    height: 13px;
    border-radius: 3px;
    display: inline-block;
}

.history-sidebar--hidden {
    display: none;
}

.history-chart-wrap--realtime .time-scrollbar-wrap {
    background: transparent;
    border: none;
    padding: 14px 0 0;
    margin-top: 10px;
}

.history-chart-wrap--realtime .time-scrollbar {
    background: var(--border);
}

@media (max-width: 900px) {
    .history-window-buttons {
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
    }

    .history-live-cards {
        grid-template-columns: repeat(2, minmax(140px, 1fr));
    }

    .chart-header--realtime {
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .history-live-cards {
        grid-template-columns: 1fr;
    }

    .history-chart-wrap--realtime {
        padding: 18px;
    }
}

.tooltip-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: help;
}

.tooltip-wrap .tooltip-text {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%);
    background: #1a2332;
    color: var(--text);
    font-size: 0.78em;
    line-height: 1.4;
    padding: 8px 12px;
    border-radius: 6px;
    width: 280px;
    white-space: normal;
    text-align: left;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
    border: 1px solid var(--border);
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 100;
}

.tooltip-wrap .tooltip-text::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1a2332;
}

.tooltip-wrap:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}