:root {
    --bg-dark: #0a0a0f;
    --card-bg: #15151e;
    --card-border: #2a2a35;
    
    --text-main: #f0f0f5;
    --text-muted: #8a8a9e;
    
    --accent-blue: #00e5ff;
    --accent-purple: #9d4edd;
    --accent-green: #00ff88;
    --accent-red: #ff3366;
    --accent-orange: #ff9900;
    
    --glow-blue: 0 0 15px rgba(0, 229, 255, 0.4);
    --glow-green: 0 0 15px rgba(0, 255, 136, 0.4);
    --glow-red: 0 0 20px rgba(255, 51, 102, 0.6);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, #004d1a 0%, #66001a 100%);
    background-attachment: fixed;
    color: var(--text-main);
    overflow-x: hidden;
    min-height: 100vh;
}

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: rgba(21, 21, 30, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.lightning-icon {
    font-size: 2rem;
    color: var(--accent-orange);
    filter: drop-shadow(0 0 8px rgba(255,153,0,0.5));
}

.logo h1 {
    font-weight: 600;
    letter-spacing: 1px;
}

.logo h1 span {
    color: var(--accent-blue);
    font-weight: 300;
}

/* Toggle Switch */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
    font-size: 1.1rem;
}

#vehicle-status-text {
    transition: color 0.3s;
}

.text-on { color: var(--accent-green); text-shadow: var(--glow-green); }
.text-off { color: var(--text-muted); }

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #333;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-green);
    box-shadow: var(--glow-green);
}

input:checked + .slider:before {
    transform: translateX(30px);
}

.slider.round { border-radius: 34px; }

/* Alert Banner */
.alert-banner {
    background: linear-gradient(90deg, rgba(255,51,102,0.8) 0%, rgba(204,0,0,0.9) 100%);
    color: white;
    text-align: center;
    padding: 15px;
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    font-size: 1.2rem;
    box-shadow: var(--glow-red);
    animation: flash 1s infinite alternate;
}

.alert-banner.hidden {
    display: none;
}

@keyframes flash {
    0% { opacity: 0.8; box-shadow: 0 0 10px rgba(255, 51, 102, 0.4); }
    100% { opacity: 1; box-shadow: 0 0 25px rgba(255, 51, 102, 0.8); }
}

/* Main Display Areas */
main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.overview-panel {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

.power-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    height: 100%;
}

.status-indicator-large {
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 1px;
}

#vehicle-status-text-main {
    transition: all 0.3s;
}

.large-switch {
    width: 80px;
    height: 40px;
}

.large-switch .slider:before {
    height: 32px;
    width: 32px;
}

.large-switch input:checked + .slider:before {
    transform: translateX(40px);
}

.card {
    background: rgba(21, 21, 30, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.card h2 {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Mode Buttons */
.mode-selector {
    display: flex;
    gap: 10px;
}

.mode-btn {
    flex: 1;
    padding: 12px;
    background: #1a1a24;
    border: 1px solid #333;
    border-radius: 8px;
    color: var(--text-muted);
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mode-btn:hover:not(:disabled) {
    background: #252533;
}

.mode-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.mode-btn.active#btn-idle {
    background: rgba(138, 138, 158, 0.2);
    color: white;
    border-color: var(--text-muted);
}

.mode-btn.active#btn-charge {
    background: rgba(0, 229, 255, 0.15);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    box-shadow: var(--glow-blue);
}

.mode-btn.active#btn-discharge {
    background: rgba(157, 78, 221, 0.15);
    color: var(--accent-purple);
    border-color: var(--accent-purple);
    box-shadow: 0 0 15px rgba(157, 78, 221, 0.4);
}

/* Temperature Display */
.temp-monitor-card {
    text-align: center;
}

.temp-display {
    font-size: 4rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    margin-bottom: 5px;
    transition: color 0.3s;
}

.temp-display .unit {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-muted);
}

.safe-range {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 10px;
}

.temp-percentage-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 5px;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.temp-progress-track {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 5px;
}

.temp-progress-fill {
    height: 100%;
    width: 25%;
    background: var(--accent-green);
    transition: width 0.3s ease, background-color 0.3s ease;
}

#temp-percentage-text {
    font-size: 0.85rem;
    color: var(--text-main);
    font-weight: 600;
}

/* Charts */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.chart-card {
    padding: 20px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.chart-header h3 {
    font-weight: 400;
    color: var(--text-main);
}

.chart-status {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.indicator-off { background-color: #333; }
.indicator-charge { background-color: var(--accent-blue); box-shadow: var(--glow-blue); }
.indicator-discharge { background-color: var(--accent-purple); box-shadow: 0 0 10px rgba(157,78,221,0.6); }

.chart-wrapper {
    height: 300px;
    width: 100%;
}

.sim-controls {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--card-border);
}

.sim-controls label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.sim-controls input[type="range"] {
    flex: 1;
    accent-color: var(--accent-blue);
}

.sim-controls span {
    width: 60px;
    text-align: right;
    font-family: monospace;
    font-size: 1.1rem;
}

/* Color States for main temp display */
.temp-normal { color: var(--accent-green); text-shadow: var(--glow-green); }
.temp-warning { color: var(--accent-orange); text-shadow: 0 0 15px rgba(255, 153, 0, 0.4); }
.temp-critical { color: var(--accent-red); text-shadow: var(--glow-red); }

/* Alerts Log */
.alerts-log-container {
    margin-top: 5px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h2 {
    margin-bottom: 0;
}

#clear-alerts-btn {
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
    border-radius: 6px;
    padding: 6px 14px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s;
}

#clear-alerts-btn:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}

.alerts-list {
    list-style: none;
    max-height: 220px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 10px;
}

.alerts-list::-webkit-scrollbar {
    width: 6px;
}
.alerts-list::-webkit-scrollbar-track {
    background: transparent;
}
.alerts-list::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

.alert-item {
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 0.95rem;
    border-left: 4px solid transparent;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.alert-info { background: rgba(0,229,255,0.05); border-left-color: var(--accent-blue); }
.alert-warning { background: rgba(255,153,0,0.1); border-left-color: var(--accent-orange); color: var(--accent-orange); }
.alert-critical { background: rgba(255,51,102,0.1); border-left-color: var(--accent-red); color: var(--accent-red); font-weight: 600; }
.default-alert { background: rgba(255,255,255,0.03); border-left-color: var(--text-muted); color: var(--text-muted); }

@media (max-width: 900px) {
    .overview-panel, .charts-container {
        grid-template-columns: 1fr;
    }
}