/* ===== CARDS ===== */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.card-header {
    padding: 1.25rem 1.5rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 var(--border-radius) var(--border-radius) !important;
}

/* ===== STATUS CARDS ===== */
.status-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--secondary-color);
    box-shadow: var(--shadow);
}

.status-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-value {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0.5rem 0;
}

.status-on {
    color: var(--success-color);
}

.status-off {
    color: var(--danger-color);
}

.temp-display {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* ===== BUTTONS ===== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

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

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

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

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

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}

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

/* Button sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
}

/* ===== ALERTS ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid transparent;
}

.alert-success {
    background: rgba(39, 174, 96, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-danger {
    background: rgba(231, 76, 60, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background: rgba(243, 156, 18, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-info {
    background: rgba(52, 152, 219, 0.1);
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

/* ===== CHARTS CONTAINERS ===== */
.chart-container {
    position: relative;
    height: 400px;
    margin: 1.5rem 0;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.zoom-instruction {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 0.5rem;
}

/* ===== TABLES ===== */
.table {
    width: 100%;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
    padding: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* ===== BADGES ===== */
.badge {
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: white;
}

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

.badge-info {
    background: var(--secondary-color);
    color: white;
}

/* ===== LOADING STATES ===== */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    border-radius: var(--border-radius);
}

.spinner-border {
    width: 2rem;
    height: 2rem;
}

/* ===== RESPONSIVE UTILITIES ===== */

/* Hide on mobile */
.d-none-mobile {
    display: none;
}

@media (min-width: 768px) {
    .d-none-mobile {
        display: block;
    }
    
    .d-md-inline {
        display: inline !important;
    }
}

/* Grid adjustments for mobile */
@media (max-width: 767px) {
    .row {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
    }
    
    .col, [class*="col-"] {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
}

/* Touch-friendly elements on mobile */
@media (max-width: 767px) {
    .btn {
        min-height: 44px; /* Minimum touch target size */
    }
    
    .form-control,
    .form-select {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow: 0 2px 10px rgba(0,0,0,0.3);
    }
    
    .card {
        border: 2px solid var(--border-color);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}