/* Base Styles & Variables */
:root {
    --primary-color: #8464eb;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --card-bg: #ffffff;
    --text-color: #212529;
    --text-light: #f8f9fa;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --light-bg: #1a1a2e;
    --card-bg: #16213e;
    --text-color: #f8f9fa;
    --text-light: #f8f9fa;
    --secondary-color: #9ba4b4;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

h1 {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* Card Styles */
.overview-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.card .value {
    font-size: 2rem;
    font-weight: bold;
    margin: 10px 0;
    color: var(--primary-color);
}

.card .subtext {
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.card.alert {
    border-left: 4px solid var(--danger-color);
}

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

/* Chart Container */
.chart-container {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: var(--box-shadow);
    height: 300px; /* Fixed height */
    display: flex;
    flex-direction: column;
}

/* Chart canvas */
#energyChart {
    flex: 1;
    min-height: 0; /* Allows the canvas to shrink below its content size */
}

/* Alerts Container */
.alerts-container {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
    max-height: 400px;
    overflow-y: auto;
}

.alerts-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.alert-item {
    padding: 10px 15px;
    border-radius: 5px;
    background-color: #f8d7da;
    color: #721c24;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: fadeIn 0.3s ease-in-out;
}

.alert-item.warning {
    background-color: #d85050;
    color: #fdfdfd;
}

.alert-item.info {
    background-color: #d1ecf1;
    color: #0c5460;
}

.alert-item .alert-message {
    flex-grow: 1;
}

.alert-item .alert-time {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-left: 10px;
}

.no-alerts {
    text-align: center;
    padding: 20px;
    color: var(--secondary-color);
    font-style: italic;
}

/* Devices Section */
.devices-section {
    margin-top: 30px;
}

.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.device-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.device-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

.device-name {
    font-weight: bold;
    font-size: 1.1rem;
}

.device-type {
    font-size: 0.8rem;
    background: var(--primary-color);
    color: white;
    padding: 3px 8px;
    border-radius: 12px;
}

.device-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 15px 0;
}

.stat {
    text-align: center;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.stat-value {
    font-weight: bold;
    margin-top: 5px;
}

.device-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.device-actions .action-group {
    display: flex;
    gap: 8px;
}

.device-actions .remove-device {
    padding: 4px 8px;
    border-radius: 4px;
    background-color: transparent;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.device-actions .remove-device:hover {
    background-color: var(--danger-color);
    color: white;
}

.device-actions .remove-device i {
    font-size: 14px;
}

/* Toggle and Optimize Buttons */
.device-actions button.toggle-device,
.device-actions button.optimize-device {
    padding: 6px 12px;
    border-radius: 4px;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Toggle Button */
.device-actions button.toggle-device {
    background-color: var(--primary-color);
    color: white;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    min-width: 80px; /* Ensure consistent width */
    text-align: left;
    padding-right: 30px;
}

/* ON state (danger/red) */
.device-actions button.toggle-device.btn-danger {
    background-color: var(--danger-color);
}

/* No checkmark for ON state */

/* Hover states */
.device-actions button.toggle-device:not(.btn-danger):hover {
    background-color: #3a5a80;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.device-actions button.toggle-device.btn-danger:hover {
    background-color: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Active/click effect */
.device-actions button.toggle-device:active {
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* Disabled state */
.device-actions button.toggle-device:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.device-actions .optimize-device {
    background-color: var(--warning-color);
    color: #212529;
}

.device-actions .optimize-device:hover {
    background-color: #e0a800;
    transform: translateY(-1px);
}

.btn {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.8rem;
}

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

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

.btn-warning {
    background-color: var(--warning-color);
    color: #212529;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: var(--secondary-color);
}

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

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.2);
}

/* Theme Toggle Switch */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Design */
@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .devices-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 576px) {
    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .header-controls {
        width: 100%;
        justify-content: center;
    }
    
    .overview-cards {
        grid-template-columns: 1fr 1fr;
    }
    
    .devices-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.mt-1 { margin-top: 0.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }