@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg-0: #0a0a0a;
    --bg-1: #111111;
    --bg-2: #171717;
    --bg-3: #1e1e1e;
    --bg-4: #262626;
    --bg-hover: #2a2a2a;

    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.10);
    --border-active: rgba(74,222,128,0.25);

    --text-0: #fafafa;
    --text-1: #e5e5e5;
    --text-2: #a3a3a3;
    --text-3: #737373;
    --text-4: #525252;

    --green: #4ade80;
    --green-dim: #22c55e;
    --green-dark: #16a34a;
    --green-bg: rgba(74,222,128,0.08);
    --green-border: rgba(74,222,128,0.18);

    --amber: #fbbf24;
    --amber-bg: rgba(251,191,36,0.08);
    --amber-border: rgba(251,191,36,0.18);

    --red: #f87171;
    --red-bg: rgba(248,113,113,0.08);
    --red-border: rgba(248,113,113,0.18);

    --blue: #60a5fa;
    --blue-bg: rgba(96,165,250,0.08);
    --blue-border: rgba(96,165,250,0.18);

    --purple: #a78bfa;
    --cyan: #22d3ee;
    --orange: #fb923c;

    --radius: 14px;
    --radius-sm: 10px;
    --radius-xs: 8px;
    --t: 0.15s ease;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg-0);
    color: var(--text-1);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ═══════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════ */
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 56px;
    background: var(--bg-1);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 14px 0;
    gap: 2px;
    z-index: 200;
}

.s-logo {
    width: 34px; height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    display: grid; place-items: center;
    margin-bottom: 18px;
    box-shadow: 0 0 20px rgba(74,222,128,0.2);
    text-decoration: none;
}

.s-logo svg { width: 18px; height: 18px; fill: #fff; }

.s-btn {
    width: 38px; height: 38px;
    display: grid; place-items: center;
    border-radius: 10px;
    color: var(--text-4);
    text-decoration: none;
    transition: all var(--t);
    position: relative;
}

.s-btn svg {
    width: 18px; height: 18px;
    stroke: currentColor; fill: none;
    stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

.s-btn:hover { color: var(--text-2); background: rgba(255,255,255,0.04); }

.s-btn.active {
    color: var(--green);
    background: var(--green-bg);
}

.s-btn.active::before {
    content: '';
    position: absolute;
    left: -9px; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 20px;
    border-radius: 0 4px 4px 0;
    background: var(--green);
    box-shadow: 0 0 10px var(--green);
}

.s-spacer { flex: 1; }

.s-btn.logout:hover { color: var(--red); background: var(--red-bg); }

/* ═══════════════════════════════════
   MAIN SHELL
   ═══════════════════════════════════ */
.main {
    margin-left: 56px;
    padding: 16px 20px 32px;
}

/* ═══════════════════════════════════
   TOPBAR
   ═══════════════════════════════════ */
.topbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 999px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    white-space: nowrap;
}

.stat-pill svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.stat-pill strong { color: var(--text-0); font-weight: 700; }

.topbar-spacer { flex: 1; }

.search-box {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 10px;
    background: var(--bg-2); border: 1px solid var(--border);
    color: var(--text-3); font-size: 13px; min-width: 200px;
}

.search-box svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; flex-shrink: 0; }

.search-box kbd {
    margin-left: auto; padding: 1px 6px;
    border-radius: 4px; background: var(--bg-3);
    border: 1px solid var(--border);
    font-family: inherit; font-size: 11px; color: var(--text-4);
}

.user-area { display: flex; align-items: center; gap: 10px; margin-left: 6px; }

.notif-btn {
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 10px;
    background: var(--bg-2); border: 1px solid var(--border);
    color: var(--text-3); cursor: pointer; position: relative;
}

.notif-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

.notif-dot {
    position: absolute; top: 5px; right: 5px;
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--red); border: 2px solid var(--bg-2);
}

.avatar {
    width: 34px; height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, #3b82f6, #6366f1);
    display: grid; place-items: center;
    font-size: 12px; font-weight: 800; color: #fff;
}

/* ═══════════════════════════════════
   PAGE HEADER
   ═══════════════════════════════════ */
.page-header {
    display: flex; align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 20px;
}

.page-header h1 {
    font-size: 26px; font-weight: 800;
    letter-spacing: -0.7px; color: var(--text-0);
}

.page-header-sub {
    font-size: 13px; color: var(--text-3); margin-top: 2px;
}

.page-header-right { display: flex; align-items: center; gap: 8px; }

/* ═══════════════════════════════════
   CARD SYSTEM
   ═══════════════════════════════════ */
.card {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.card-header {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 14px; font-weight: 700;
    letter-spacing: -0.1px; color: var(--text-0);
}

.card-sub { font-size: 12px; color: var(--text-3); margin-top: 1px; }
.card-actions { display: flex; gap: 6px; }
.card-body { padding: 14px 18px; }

/* ═══════════════════════════════════
   BUTTONS
   ═══════════════════════════════════ */
.btn {
    padding: 6px 14px;
    border-radius: var(--radius-xs);
    background: var(--bg-3); border: 1px solid var(--border);
    color: var(--text-2);
    font-family: inherit; font-size: 12px; font-weight: 600;
    cursor: pointer; transition: all var(--t);
    display: inline-flex; align-items: center; gap: 6px;
    text-decoration: none;
    min-height: 34px;
}

.btn:hover { background: var(--bg-4); border-color: var(--border-hover); color: var(--text-1); }

.btn-accent {
    background: var(--green-bg); border-color: var(--green-border); color: var(--green);
}
.btn-accent:hover { background: rgba(74,222,128,0.14); }

.btn-blue {
    background: var(--blue-bg); border-color: var(--blue-border); color: var(--blue);
}
.btn-blue:hover { background: rgba(96,165,250,0.14); }

.btn-danger {
    background: var(--red-bg); border-color: var(--red-border); color: var(--red);
}
.btn-danger:hover { background: rgba(248,113,113,0.14); }

.btn-danger.active-danger {
    background: rgba(248,113,113,0.2); border-color: rgba(248,113,113,0.4);
    animation: dangerPulse 1.5s ease-in-out infinite;
}

@keyframes dangerPulse {
    0%,100% { box-shadow: none; }
    50% { box-shadow: 0 0 16px rgba(248,113,113,0.15); }
}

.btn-primary {
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    border: none; color: #fff;
    box-shadow: 0 2px 10px rgba(74,222,128,0.2);
}
.btn-primary:hover { box-shadow: 0 4px 16px rgba(74,222,128,0.3); color: #fff; }

.btn svg {
    width: 14px; height: 14px;
    stroke: currentColor; fill: none; stroke-width: 2;
}

/* ═══════════════════════════════════
   BADGE / TAG
   ═══════════════════════════════════ */
.badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 12px; border-radius: 999px;
    font-size: 12px; font-weight: 700;
}

.badge-online {
    background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border);
}

.badge-online::before {
    content: ''; width: 7px; height: 7px; border-radius: 50%;
    background: var(--green);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%,100% { box-shadow: 0 0 0 0 rgba(74,222,128,0.4); }
    50% { box-shadow: 0 0 0 5px rgba(74,222,128,0); }
}

.badge-offline {
    background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border);
}

.badge-offline::before {
    content: ''; width: 7px; height: 7px; border-radius: 50%;
    background: var(--red);
}

.badge-robot {
    background: var(--blue-bg); color: var(--blue); border: 1px solid var(--blue-border);
}

.status-tag {
    padding: 2px 8px; border-radius: 999px;
    font-size: 11px; font-weight: 700;
}
.status-tag.active { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.status-tag.idle { background: var(--amber-bg); color: var(--amber); border: 1px solid var(--amber-border); }
.status-tag.warn { background: var(--amber-bg); color: var(--amber); }
.status-tag.crit { background: var(--red-bg); color: var(--red); }
.status-tag.info { background: var(--blue-bg); color: var(--blue); }

/* ═══════════════════════════════════
   FILTER TABS
   ═══════════════════════════════════ */
.filter-row {
    display: flex; align-items: center; gap: 6px;
    margin-bottom: 18px; flex-wrap: wrap;
}

.ftab {
    padding: 5px 12px; border-radius: 999px;
    background: transparent; border: 1px solid var(--border);
    color: var(--text-3); font-family: inherit;
    font-size: 12px; font-weight: 600; cursor: pointer;
    display: flex; align-items: center; gap: 5px;
    transition: all var(--t);
}

.ftab:hover { border-color: var(--border-hover); color: var(--text-2); }

.ftab.active { background: var(--text-0); border-color: var(--text-0); color: var(--bg-0); }

.ftab .count {
    padding: 0 6px; border-radius: 999px;
    background: rgba(255,255,255,0.12); font-size: 11px; font-weight: 700;
}

.ftab.active .count { background: rgba(0,0,0,0.15); }

.filter-spacer { flex: 1; }

.toggle-group { display: flex; align-items: center; gap: 14px; }

.toggle-label {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; font-weight: 600; color: var(--text-2);
}

.toggle-dot {
    width: 32px; height: 18px; border-radius: 999px;
    background: var(--green); position: relative; cursor: pointer;
    transition: background 0.2s;
}

.toggle-dot::after {
    content: ''; position: absolute;
    top: 3px; right: 3px;
    width: 12px; height: 12px; border-radius: 50%; background: #fff;
    transition: left 0.2s, right 0.2s;
}

.toggle-dot.off { background: var(--bg-3); }
.toggle-dot.off::after { right: auto; left: 3px; background: var(--text-4); }

.search-box .search-input {
    background: transparent; border: none; outline: none;
    color: var(--text-1); font-family: inherit; font-size: 13px;
    width: 140px;
}

/* ═══════════════════════════════════
   METRIC CARDS
   ═══════════════════════════════════ */
.metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}

.metric-card {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    display: flex; flex-direction: column; gap: 8px;
    transition: all var(--t);
    position: relative; overflow: hidden;
}

.metric-card::before {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: var(--green); opacity: 0.6;
}

.metric-card:nth-child(2)::before { background: var(--blue); }
.metric-card:nth-child(3)::before { background: var(--cyan); }
.metric-card:nth-child(4)::before { background: var(--amber); }

.metric-card:hover {
    border-color: var(--border-hover); background: var(--bg-2);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.metric-label {
    font-size: 11px; font-weight: 700;
    letter-spacing: 0.6px; text-transform: uppercase;
    color: var(--text-3);
}

.metric-value {
    font-size: 28px; font-weight: 800;
    letter-spacing: -0.5px; color: var(--text-0);
    font-feature-settings: 'tnum';
}

.metric-sub { font-size: 12px; color: var(--text-4); }

/* ═══════════════════════════════════
   DASHBOARD GRID
   ═══════════════════════════════════ */
.dash-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 14px;
}

.map-wrap { position: relative; }

#map {
    height: 480px;
    background: var(--bg-0);
    min-height: 400px;
}

.leaflet-container { background: var(--bg-0) !important; }

.robot-pulse-marker {
    position: relative;
    width: 22px; height: 22px;
}

.robot-pulse-marker .dot {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--green);
    border: 2.5px solid #0a2e1a;
    z-index: 2;
    transition: background 0.4s, border-color 0.4s;
}

.robot-pulse-marker .ring {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 14px; height: 14px;
    border-radius: 50%;
    border: 2px solid var(--green);
    opacity: 0;
    z-index: 1;
}

.robot-pulse-marker.active .ring {
    animation: pulseRing 2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.robot-pulse-marker.active .ring:nth-child(2) {
    animation-delay: 0.7s;
}

.robot-pulse-marker.active .dot {
    animation: pulseDotGlow 2s ease-in-out infinite;
}

.robot-pulse-marker.idle .dot {
    background: var(--text-4);
    border-color: var(--bg-3);
}

@keyframes pulseRing {
    0% { width: 14px; height: 14px; opacity: 0.6; }
    100% { width: 50px; height: 50px; opacity: 0; }
}

@keyframes pulseDotGlow {
    0%, 100% { box-shadow: 0 0 4px 1px rgba(74,222,128,0.3); }
    50% { box-shadow: 0 0 12px 4px rgba(74,222,128,0.6); }
}

.leaflet-control-zoom {
    border: 1px solid var(--border) !important;
    border-radius: 10px !important;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4) !important;
}

.leaflet-control-zoom a {
    background: var(--bg-2) !important;
    color: var(--text-1) !important;
    border-color: var(--border) !important;
    width: 34px !important; height: 34px !important;
    line-height: 34px !important; font-size: 16px !important;
}

.leaflet-control-zoom a:hover {
    background: var(--bg-3) !important; color: var(--text-0) !important;
}

.leaflet-control-attribution {
    background: rgba(10,10,10,0.75) !important;
    color: var(--text-4) !important; font-size: 10px !important;
}

.leaflet-control-attribution a { color: var(--text-3) !important; }

.leaflet-popup-content-wrapper {
    background: var(--bg-2) !important; color: var(--text-1) !important;
    border-radius: var(--radius-xs) !important;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5) !important;
}

.leaflet-popup-tip { background: var(--bg-2) !important; }

/* ═══════════════════════════════════
   VEHICLE POPUP (on map)
   ═══════════════════════════════════ */
.map-container { position: relative; }

.vehicle-popup {
    position: absolute; top: 14px; left: 14px;
    width: 280px;
    background: rgba(17,17,17,0.94);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px; z-index: 500;
    pointer-events: auto;
}

.vp-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }

.vp-icon {
    width: 34px; height: 34px; border-radius: 8px;
    background: var(--bg-3); display: grid; place-items: center;
}

.vp-icon svg { width: 18px; height: 18px; stroke: var(--text-2); fill: none; stroke-width: 1.8; }

.vp-name {
    font-size: 14px; font-weight: 700; color: var(--text-0);
    display: flex; align-items: center; gap: 8px;
}

.vp-model { font-size: 12px; color: var(--text-3); margin-top: 1px; }

.vp-route {
    background: var(--bg-3); border-radius: var(--radius-xs);
    padding: 10px 12px; margin-bottom: 10px;
}

.vp-route-label {
    font-size: 13px; font-weight: 600; color: var(--text-1);
    margin-bottom: 6px; display: flex; justify-content: space-between;
}

.vp-route-label span { color: var(--text-3); }

.progress-bar {
    height: 4px; background: var(--bg-4);
    border-radius: 999px; overflow: hidden; margin-bottom: 6px;
}

.progress-fill {
    height: 100%; border-radius: 999px;
    background: linear-gradient(90deg, var(--amber), #f59e0b);
}

.vp-eta { font-size: 12px; color: var(--text-3); }

.vp-gauges { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.gauge-card {
    background: var(--bg-3); border-radius: var(--radius-xs);
    padding: 10px; text-align: center;
}

.gauge-label {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--text-3);
    display: flex; align-items: center; justify-content: space-between;
}

.gauge-val {
    font-size: 22px; font-weight: 800; letter-spacing: -0.5px;
    color: var(--text-0); margin-top: 4px; font-feature-settings: 'tnum';
}

.gauge-unit { font-size: 12px; font-weight: 600; color: var(--text-3); }

.tag-high { color: var(--red); font-size: 10px; font-weight: 700; }
.tag-normal { color: var(--green); font-size: 10px; font-weight: 700; }

/* ═══════════════════════════════════
   SENSOR GRID
   ═══════════════════════════════════ */
.sensor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px; padding: 12px;
}

.sensor-card {
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    padding: 12px 14px; cursor: pointer;
    transition: all var(--t); text-align: left;
    display: flex; flex-direction: column; gap: 4px;
}

.sensor-card:hover { border-color: var(--border-hover); background: var(--bg-3); transform: translateY(-1px); }

.sensor-card span.label {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.6px; color: var(--text-3);
}

.sensor-card strong {
    font-size: 24px; font-weight: 800; letter-spacing: -0.5px;
    font-feature-settings: 'tnum'; line-height: 1.1; display: block;
}

.sensor-card small { font-size: 11px; font-weight: 600; color: var(--text-4); }

.sensor-card[data-sensor="battery_voltage"] strong { color: var(--green); }
.sensor-card[data-sensor="speed_kph"] strong { color: var(--blue); }
.sensor-card[data-sensor="rssi_dbm"] strong { color: var(--purple); }
.sensor-card[data-sensor="oil_temp"] strong { color: var(--red); }
.sensor-card[data-sensor="pressure1"] strong { color: var(--cyan); }
.sensor-card[data-sensor="pressure2"] strong { color: var(--amber); }
.sensor-card[data-sensor="pressure3"] strong { color: var(--orange); }
.sensor-card[data-sensor="rpm"] strong { color: var(--text-1); }

body.robot-offline .sensor-card strong { color: var(--text-4) !important; }
body.robot-offline .sensor-card { opacity: 0.5; }
body.robot-offline .metric-value { color: var(--text-4) !important; }

/* ═══════════════════════════════════
   GPS CARD
   ═══════════════════════════════════ */
.location-card {
    margin: 0 12px 12px; padding: 14px 16px;
    border-radius: var(--radius-xs);
    background: var(--bg-2); border: 1px solid var(--green-border);
    display: grid; gap: 6px;
}

.location-card .gps-label {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.6px; color: var(--green);
    display: flex; align-items: center; gap: 6px;
}

.location-card .gps-label::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--green); box-shadow: 0 0 8px var(--green);
    animation: gpsPulse 2s ease-in-out infinite;
}

@keyframes gpsPulse { 0%,100% { opacity:1; } 50% { opacity:0.4; } }

.location-card strong {
    font-size: 16px; font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-0);
}

.location-card small { font-size: 11px; color: var(--text-4); }

.location-row {
    display: grid; grid-template-columns: 2fr 1fr; gap: 12px;
    margin: 0 12px 12px;
}
.location-row .location-card { margin: 0; }
@media (max-width: 520px) {
    .location-row { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════
   EMERGENCY BANNER
   ═══════════════════════════════════ */
.emergency-banner {
    padding: 12px 18px;
    border-radius: var(--radius-xs);
    background: var(--red-bg); border: 1px solid var(--red-border);
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 14px;
    animation: emPulse 2s ease-in-out infinite;
}

@keyframes emPulse {
    0%,100% { border-color: rgba(248,113,113,0.18); }
    50% { border-color: rgba(248,113,113,0.4); box-shadow: 0 0 20px rgba(248,113,113,0.06); }
}

.emergency-banner .em-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--red); animation: emBlink 1s step-end infinite; flex-shrink: 0;
}

@keyframes emBlink { 50% { opacity: 0.3; } }

.hidden { display: none !important; }

/* ═══════════════════════════════════
   ALERT ROWS
   ═══════════════════════════════════ */
.alert-list { display: flex; flex-direction: column; gap: 6px; padding: 14px; }

.alert-row {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 14px; border-radius: var(--radius-xs);
    background: var(--bg-2); border: 1px solid var(--border);
    transition: all var(--t);
}

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

.alert-icon {
    width: 32px; height: 32px; border-radius: 8px;
    display: grid; place-items: center; flex-shrink: 0; font-size: 16px;
}

.alert-icon.warn { background: var(--amber-bg); }
.alert-icon.crit { background: var(--red-bg); }
.alert-icon.info { background: var(--blue-bg); }

.alert-title {
    font-size: 13px; font-weight: 600; color: var(--text-1);
    display: flex; align-items: center; gap: 8px;
}

.alert-desc { font-size: 12px; color: var(--text-3); margin-top: 2px; }

/* ═══════════════════════════════════
   HISTORY / SESSION
   ═══════════════════════════════════ */
.history-section { margin-top: 14px; }

.history-layout {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 14px; padding: 14px 18px;
}

.session-list { display: flex; flex-direction: column; gap: 6px; align-content: start; }

.session-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 14px; border-radius: var(--radius-xs);
    background: var(--bg-2); border: 1px solid var(--border);
    cursor: pointer; transition: all var(--t); color: var(--text-1);
    text-align: left; width: 100%;
}

.session-row:hover { border-color: var(--border-hover); background: var(--bg-3); }
.session-row.active { border-color: var(--green-border); background: rgba(74,222,128,0.04); }

.session-row strong { font-size: 13px; font-weight: 700; color: var(--text-0); display: block; }
.session-row small { font-size: 12px; color: var(--text-3); }
.session-row em {
    font-size: 14px; font-weight: 800; color: var(--green);
    font-style: normal; font-feature-settings: 'tnum'; white-space: nowrap;
}

.history-kpis {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}

.history-kpis div {
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: var(--radius-xs); padding: 14px;
    display: flex; flex-direction: column; gap: 6px;
}

.history-kpis span {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.6px; color: var(--text-3);
}

.history-kpis strong {
    font-size: 22px; font-weight: 800; letter-spacing: -0.5px;
    color: var(--text-0); font-feature-settings: 'tnum';
}

.export-link {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 10px; padding: 7px 14px;
    border-radius: var(--radius-xs);
    background: var(--blue-bg); border: 1px solid var(--blue-border);
    color: var(--blue); font-family: inherit;
    font-size: 12px; font-weight: 700; text-decoration: none;
    transition: all var(--t); min-height: 34px;
}

.export-link:hover { background: rgba(96,165,250,0.14); }

.date-control {
    display: flex; align-items: center; gap: 8px;
}

.date-control span {
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--text-3);
}

input[type="date"] {
    padding: 6px 12px; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg-2);
    color: var(--text-1); font-family: inherit; font-size: 13px;
    outline: none; color-scheme: dark; min-height: 34px;
}

input[type="date"]:focus { border-color: var(--green); box-shadow: 0 0 0 3px var(--green-bg); }

/* ═══════════════════════════════════
   ALERT LIST & SESSION PERFORMANCE
   ═══════════════════════════════════ */
.dash-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.alert-list { display: flex; flex-direction: column; }

.alert-row {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    transition: background var(--t);
}

.alert-row:last-child { border-bottom: none; }
.alert-row:hover { background: var(--bg-3); }

.alert-icon {
    width: 36px; height: 36px; border-radius: 10px;
    display: grid; place-items: center; font-size: 16px; flex-shrink: 0;
}

.alert-icon.crit { background: var(--red-bg); }
.alert-icon.warn { background: var(--amber-bg); }
.alert-icon.info { background: var(--blue-bg); }

.alert-title {
    font-size: 13px; font-weight: 700; color: var(--text-0);
    display: flex; align-items: center; gap: 8px;
}

.alert-desc { font-size: 12px; color: var(--text-3); margin-top: 2px; }

.alert-actions {
    display: flex; gap: 4px; margin-left: auto; flex-shrink: 0;
}

.alert-actions button {
    width: 30px; height: 30px; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg-2);
    color: var(--text-3); cursor: pointer; display: grid; place-items: center;
    font-size: 14px; transition: all var(--t);
}

.alert-actions button:hover { background: var(--bg-4); color: var(--text-1); }

/* ═══════════════════════════════════
   CHART MODAL
   ═══════════════════════════════════ */
.chart-modal {
    position: fixed; inset: 0; z-index: 900;
    display: grid; place-items: center; padding: 24px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
}

.chart-panel {
    width: min(1040px, calc(100vw - 48px));
    height: min(620px, calc(100vh - 48px));
    display: grid; grid-template-rows: auto 1fr;
}

.chart-panel canvas { width: 100% !important; height: 100% !important; padding: 18px; }

.form-modal-panel {
    width: min(440px, calc(100vw - 48px));
}

.form-modal-panel label {
    display: grid; gap: 6px;
    font-size: 12px; font-weight: 600; color: var(--text-2);
}

.form-modal-panel input {
    min-height: 42px; border: 1px solid var(--border);
    border-radius: 10px; padding: 0 14px;
    font-size: 14px; font-family: inherit;
    background: var(--bg-2); color: var(--text-1); outline: none;
}

.form-modal-panel input:focus { border-color: var(--green-border); }

.range-tabs {
    display: flex; gap: 2px; padding: 3px;
    border-radius: 10px; background: var(--bg-2); border: 1px solid var(--border);
}

.range-tabs button {
    min-height: 30px; padding: 0 10px; border-radius: 8px;
    color: var(--text-3); background: transparent; border: none;
    font-family: inherit; font-size: 12px; font-weight: 600; cursor: pointer;
}

.range-tabs button:hover { color: var(--text-2); }
.range-tabs button.active { color: var(--green); background: var(--green-bg); }

/* ═══════════════════════════════════
   FULL MAP PAGE
   ═══════════════════════════════════ */
#fullmap { height: calc(100vh - 130px); min-height: 500px; }

.map-overlay {
    position: absolute; top: 14px; right: 14px; z-index: 400;
    display: flex; flex-direction: column; gap: 8px;
}

.map-stat {
    background: rgba(23,23,23,0.92); backdrop-filter: blur(12px);
    border: 1px solid var(--border); border-radius: var(--radius-xs);
    padding: 12px 16px; min-width: 160px;
}

.map-stat span {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--text-3); display: block;
}

/* ═══════════════════════════════════
   ALL SESSIONS TABLE
   ═══════════════════════════════════ */
.sess-table-wrap {
    overflow-x: auto;
    max-height: 420px;
    overflow-y: auto;
}

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

.sess-table thead th {
    position: sticky; top: 0; z-index: 1;
    background: var(--bg-2);
    text-align: left;
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.6px; color: var(--text-3);
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.sess-table tbody td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-2);
    white-space: nowrap;
    font-feature-settings: 'tnum';
}

.sess-table tbody tr { transition: background 0.15s; }
.sess-table tbody tr.sess-row { cursor: pointer; }
.sess-table tbody tr:hover { background: var(--bg-3); }
.sess-table tbody tr.selected { background: rgba(74,222,128,0.06); }
.sess-table tbody tr.selected td { color: var(--text-1); }
.sess-table tbody tr.viewing { background: rgba(96,165,250,0.08); }
.sess-table tbody tr.viewing td:first-child { box-shadow: inset 3px 0 0 var(--blue); }
.sess-table tbody tr.viewing td { color: var(--text-1); }

.sess-table .sess-check { width: 40px; }

.sess-table input[type="checkbox"] {
    width: 15px; height: 15px;
    accent-color: var(--green);
    cursor: pointer;
}

.sess-table td strong { color: var(--text-1); font-weight: 700; }

.sess-empty {
    text-align: center;
    padding: 34px 14px !important;
    color: var(--text-3) !important;
}

.sess-em-badge {
    display: inline-block;
    min-width: 22px; text-align: center;
    padding: 2px 7px; border-radius: 6px;
    font-size: 11px; font-weight: 700;
}
.sess-em-badge.zero { background: var(--bg-3); color: var(--text-4); }
.sess-em-badge.warn { background: var(--red-bg); color: var(--red); }

.sess-selected-count {
    font-size: 12px; font-weight: 600; color: var(--text-3);
}

/* ═══════════════════════════════════
   ESP32 GUIDE PAGE
   ═══════════════════════════════════ */
.code-block {
    background: var(--bg-0);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    margin: 14px 18px 18px;
    padding: 16px;
    font-family: 'Cascadia Code', 'Consolas', monospace;
    font-size: 12px;
    line-height: 1.6;
    color: #a5d6a7;
    overflow-x: auto;
    white-space: pre;
}

.api-row {
    display: flex; align-items: center; gap: 10px;
    flex-wrap: wrap;
}

.api-label {
    min-width: 110px;
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.6px; color: var(--text-3);
}

.api-value {
    flex: 1;
    background: var(--bg-0); border: 1px solid var(--border);
    border-radius: 8px; padding: 8px 12px;
    font-family: 'Consolas', monospace; font-size: 12px;
    color: var(--green);
    overflow-x: auto; white-space: nowrap;
    min-width: 0;
}

.api-note {
    font-size: 12px; color: var(--text-3); line-height: 1.6;
    border-top: 1px solid var(--border); padding-top: 12px;
}

.api-note code {
    background: var(--bg-0); border: 1px solid var(--border);
    border-radius: 5px; padding: 1px 6px;
    font-size: 11px; color: var(--amber);
}

.btn-copy { flex-shrink: 0; }

.robot-select-wrap {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: 10px; padding: 0 10px;
    color: var(--text-3);
}

.robot-select-wrap select {
    background: transparent; border: none; outline: none;
    color: var(--text-1); font-family: inherit; font-size: 13px; font-weight: 600;
    min-height: 38px; padding-right: 4px; cursor: pointer;
    max-width: 200px;
}

.robot-select-wrap select option { background: var(--bg-2); color: var(--text-1); }

/* Session detail panel */
.sess-detail {
    border-bottom: 1px solid var(--border);
    padding: 16px 18px;
    background: var(--bg-1);
}

.sess-detail-head {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 12px; margin-bottom: 14px;
}

.sd-title {
    font-size: 14px; font-weight: 700; color: var(--text-0);
}

.sd-id { font-size: 11px; color: var(--text-4); font-feature-settings: 'tnum'; }

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

.sd-kpis {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

.sd-kpis > div {
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: var(--radius-xs); padding: 10px 12px;
}

.sd-kpis span {
    display: block; font-size: 10px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-3);
    margin-bottom: 3px;
}

.sd-kpis strong {
    font-size: 13px; font-weight: 700; color: var(--text-1);
    font-feature-settings: 'tnum';
    display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.sd-chart { height: 190px; }

.sd-hint {
    margin-top: 10px; font-size: 11px; color: var(--text-4);
}

@media (max-width: 1100px) {
    .sd-kpis { grid-template-columns: repeat(3, 1fr); }
}

.map-stat strong {
    font-size: 20px; font-weight: 800; color: var(--text-0); font-feature-settings: 'tnum';
}

/* ═══════════════════════════════════
   FORMS (Login, Sim, Settings)
   ═══════════════════════════════════ */
input:not([type="date"]) {
    width: 100%; min-height: 42px;
    border: 1px solid var(--border); border-radius: 10px;
    padding: 0 14px; font-size: 14px; font-family: inherit;
    background: var(--bg-2); color: var(--text-1); outline: none;
    transition: all var(--t);
}

input:not([type="date"]):focus {
    border-color: var(--green); box-shadow: 0 0 0 3px var(--green-bg);
}

label {
    display: grid; gap: 6px;
    font-size: 12px; font-weight: 600; color: var(--text-2);
}

/* ═══════════════════════════════════
   APP LOADER (page preloader)
   ═══════════════════════════════════ */
.app-loader {
    position: fixed; inset: 0; z-index: 9999;
    display: grid; place-items: center;
    background:
        radial-gradient(ellipse 700px 500px at 50% 40%, rgba(74,222,128,0.06), transparent 70%),
        radial-gradient(ellipse 500px 400px at 70% 80%, rgba(96,165,250,0.04), transparent 70%),
        var(--bg-0);
    opacity: 1;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.app-loader.is-hidden {
    opacity: 0; visibility: hidden; pointer-events: none;
}

.app-loader-inner {
    display: flex; flex-direction: column; align-items: center;
    animation: loaderRise 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes loaderRise {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.loader-ring {
    position: relative;
    width: 96px; height: 96px;
    display: grid; place-items: center;
    margin-bottom: 26px;
}

/* Spinning conic ring */
.loader-ring::before {
    content: ''; position: absolute; inset: 0;
    border-radius: 50%;
    background: conic-gradient(from 0deg, transparent 0deg, transparent 210deg, var(--green) 340deg, #86efac 360deg);
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 4px));
            mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 4px));
    animation: loaderSpin 1s linear infinite;
}

/* Soft static track under the spinner */
.loader-ring::after {
    content: ''; position: absolute; inset: 0;
    border-radius: 50%;
    border: 4px solid rgba(255,255,255,0.05);
}

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

.loader-badge {
    position: relative; z-index: 1;
    width: 60px; height: 60px; border-radius: 18px;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    display: grid; place-items: center;
    box-shadow: 0 8px 30px rgba(74,222,128,0.3);
    animation: loaderPulse 1.8s ease-in-out infinite;
}

.loader-badge svg { width: 30px; height: 30px; fill: #06210f; }

@keyframes loaderPulse {
    0%, 100% { transform: scale(1);    box-shadow: 0 8px 30px rgba(74,222,128,0.28); }
    50%      { transform: scale(1.06); box-shadow: 0 10px 40px rgba(74,222,128,0.5); }
}

.loader-brand {
    font-size: 22px; font-weight: 800; letter-spacing: -0.4px;
    color: var(--text-0); margin-bottom: 6px;
}

.loader-sub {
    font-size: 13px; font-weight: 500; color: var(--text-3);
    display: flex; align-items: baseline; gap: 1px; margin-bottom: 22px;
}

.loader-dots::after {
    content: ''; animation: loaderDots 1.4s steps(4, end) infinite;
}

@keyframes loaderDots {
    0%   { content: ''; }
    25%  { content: '.'; }
    50%  { content: '..'; }
    75%  { content: '...'; }
}

.loader-bar {
    width: 200px; height: 3px; border-radius: 3px;
    background: rgba(255,255,255,0.06); overflow: hidden;
}

.loader-bar-fill {
    height: 100%; width: 40%; border-radius: 3px;
    background: linear-gradient(90deg, transparent, var(--green), #86efac, var(--green), transparent);
    animation: loaderSlide 1.2s ease-in-out infinite;
}

@keyframes loaderSlide {
    0%   { transform: translateX(-120%); }
    100% { transform: translateX(370%); }
}

@media (prefers-reduced-motion: reduce) {
    .loader-ring::before, .loader-badge, .loader-bar-fill, .loader-dots::after { animation: none; }
}

/* ═══════════════════════════════════
   LOGIN PAGE
   ═══════════════════════════════════ */
.login-page {
    min-height: 100vh;
    display: grid; place-items: center;
    background:
        radial-gradient(ellipse 800px 600px at 30% 50%, rgba(74,222,128,0.04), transparent),
        radial-gradient(ellipse 600px 400px at 70% 80%, rgba(96,165,250,0.03), transparent),
        var(--bg-0);
}

.login-shell {
    width: min(420px, calc(100vw - 40px));
    animation: slideUp 0.5s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes slideUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }

.login-panel {
    background: var(--bg-1); border: 1px solid var(--border);
    border-radius: 20px; padding: 40px 36px; position: relative;
}

.login-panel::before {
    content: ''; position: absolute; inset: -1px;
    border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, rgba(74,222,128,0.15), transparent 40%, rgba(96,165,250,0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    pointer-events: none;
}

.brand-mark {
    width: 48px; height: 48px; border-radius: 14px;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    display: grid; place-items: center; font-size: 20px;
    margin-bottom: 24px; box-shadow: 0 4px 20px rgba(74,222,128,0.25);
}

.login-panel h1 {
    font-size: 24px; font-weight: 800; letter-spacing: -0.5px;
    margin: 0 0 6px; color: var(--text-0);
}

.login-panel > p {
    color: var(--text-3); font-size: 14px; margin: 0 0 28px;
}

.login-form { display: grid; gap: 18px; }

.login-form button {
    width: 100%; padding: 12px; border-radius: 10px; border: none;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    color: #fff; font-family: inherit; font-size: 14px; font-weight: 700;
    cursor: pointer; box-shadow: 0 4px 16px rgba(74,222,128,0.25);
    transition: all var(--t);
}

.login-form button:hover {
    box-shadow: 0 6px 24px rgba(74,222,128,0.35); transform: translateY(-1px);
}

.login-error {
    background: var(--red-bg); color: var(--red);
    border: 1px solid var(--red-border); border-radius: 10px;
    padding: 12px 14px; font-size: 14px; font-weight: 500;
}

/* ═══════════════════════════════════
   SIMULATOR
   ═══════════════════════════════════ */
.sim-layout {
    display: grid;
    grid-template-columns: minmax(360px, 0.82fr) minmax(360px, 1.18fr);
    gap: 14px; margin-top: 16px;
}

.sim-form {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 14px; padding: 16px 18px;
}

.sim-actions {
    display: flex; flex-wrap: wrap; gap: 8px; padding: 0 18px 18px;
}

.sim-stats {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 8px; padding: 16px 18px;
}

.sim-stats div {
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: var(--radius-xs); padding: 12px;
    display: flex; flex-direction: column; gap: 6px;
}

.sim-stats span {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--text-3);
}

.sim-stats strong {
    font-size: 22px; font-weight: 800; letter-spacing: -0.3px;
    color: var(--text-0); font-feature-settings: 'tnum';
}

.payload-preview {
    margin: 0 18px 18px; min-height: 340px; overflow: auto;
    border-radius: var(--radius-xs);
    background: var(--bg-2); border: 1px solid var(--border);
    color: var(--green); padding: 16px 18px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px; line-height: 1.6;
}

/* ═══════════════════════════════════
   GENERIC PAGE SECTIONS
   ═══════════════════════════════════ */
.page-grid-2 {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 14px; margin-bottom: 14px;
}

.empty-state {
    border: 2px dashed rgba(255,255,255,0.08);
    border-radius: var(--radius); padding: 40px 24px;
    color: var(--text-3); background: var(--bg-1);
    text-align: center; font-size: 14px;
}

.empty-state strong {
    display: block; font-size: 16px; color: var(--text-2); margin-bottom: 6px;
}

.data-table {
    width: 100%; border-collapse: collapse;
}

.data-table th {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.6px; color: var(--text-3);
    padding: 10px 14px; text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 12px 14px; border-bottom: 1px solid var(--border);
    font-size: 13px; color: var(--text-1);
}

.data-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ═══════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.06); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.1); }

/* ═══════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════ */
@media (max-width: 1200px) {
    .metrics { grid-template-columns: repeat(2, 1fr); }
    .dash-grid { grid-template-columns: 1fr; }
    .page-grid-2 { grid-template-columns: 1fr; }
    .history-layout { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
    .sidebar {
        position: static; width: auto;
        flex-direction: row; padding: 10px 14px;
        border-right: none; border-bottom: 1px solid var(--border);
        overflow-x: auto;
    }
    .s-logo { margin-bottom: 0; margin-right: 10px; }
    .s-btn.active::before { display: none; }
    .s-spacer { flex: 1; }
    .main { margin-left: 0; padding: 14px; }
    .metrics { grid-template-columns: 1fr; }
    .sensor-grid { grid-template-columns: 1fr; }
    .history-kpis { grid-template-columns: 1fr; }
    .sim-layout, .sim-form, .sim-stats { grid-template-columns: 1fr; }
    .vehicle-popup { display: none; }
}

/* tile ของ OpenStreetMap เป็นธีมสว่าง ไม่เข้ากับ UI มืด
   กลับสีเฉพาะชั้น tile เท่านั้น - marker/เส้นทางอยู่คนละ pane จึงไม่โดนผลกระทบ */
.leaflet-tile-pane {
    filter: invert(1) hue-rotate(180deg) brightness(0.92) contrast(0.88) saturate(0.85);
}