/* ==========================================================================
   1. VARIABEL & RESET DASAR
   ========================================================================== */
   :root {
    --spacing-main: 24px;
    --spacing-card: 16px;
    --border-radius: 12px;
    --card-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    padding-bottom: 40px; /* Memberi ruang di bagian bawah */
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px; /* Padding untuk layar kecil */
}

/* ==========================================================================
   2. STYLING ALERT & STATUS
   ========================================================================== */
.alert-container {
    margin-bottom: var(--spacing-main);
}

.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-left-width: 5px;
    border-left-style: solid;
}

.alert h2 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.alert p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.alert-danger {
    background: linear-gradient(45deg, #ff0000, #ff6b6b);
    color: white;
    border-left-color: #a71d2a;
}

.alert-warning {
    background: linear-gradient(45deg, #ff9a00, #ffd166);
    color: #333;
    border-left-color: #d98200;
}

.alert-success {
    background: linear-gradient(45deg, #06d6a0, #7ee8c0);
    color: white;
    border-left-color: #05a97d;
}

.danger-symbols {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
}

.danger-symbol {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 16px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.3);
    transition: var(--transition);
    min-width: 90px;
}

.danger-symbol:hover {
    transform: scale(1.1);
    background-color: rgba(255, 255, 255, 0.4);
}

/* ==========================================================================
   3. STYLING GRID & KARTU (SENSOR & AKTUATOR)
   ========================================================================== */
.sensor-grid, .aktuator-grid {
    display: grid;
    gap: var(--spacing-main);
    margin-bottom: var(--spacing-main);
}

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

.aktuator-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.sensor-card, .aktuator-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.sensor-card:hover, .aktuator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.sensor-header, .aktuator-header {
    padding: 14px 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sensor-header {
    color: white;
}
.sensor-header.bg-primary { background: linear-gradient(135deg, #0d6efd, #0b5ed7); }
.sensor-header.bg-danger { background: linear-gradient(135deg, #dc3545, #bb2d3b); }
.sensor-header.bg-dark { background: linear-gradient(135deg, #212529, #1a1e21); }
.sensor-header.bg-info { background: linear-gradient(135deg, #0dcaf0, #0da6c2); }

.aktuator-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.sensor-body, .aktuator-body {
    padding: var(--spacing-card);
    flex-grow: 1;
}

.sensor-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.aktuator-body {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sensor-icon, .aktuator-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sensor-icon {
    margin-bottom: 16px;
}

.aktuator-icon {
    background-color: #f8f9fa;
}

.sensor-value {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}
        
.sensor-status {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.sensor-time, .aktuator-time {
    font-size: 0.85rem;
    color: #6c757d;
    display: flex;
    align-items: center;
    gap: 5px;
}

.sensor-time {
    margin-top: auto;
}

.aktuator-time {
    margin-top: 8px;
}

/* ==========================================================================
   4. ELEMEN UI LAINNYA (PROGRESS BAR, DLL)
   ========================================================================== */
.progress {
    height: 10px;
    border-radius: 6px;
    background-color: #e9ecef;
    overflow: hidden; /* Pastikan progress bar tetap di dalam batas */
}

.progress-bar {
    border-radius: 6px;
}

.vr {
    width: 1px;
    background-color: rgba(0, 0, 0, 0.1);
    align-self: stretch;
}

/* ==========================================================================
   5. ANIMASI
   ========================================================================== */
/* Definisi Keyframes */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes ring {
    0% { transform: rotate(0deg); }
    10% { transform: rotate(15deg); }
    20% { transform: rotate(-15deg); }
    30% { transform: rotate(15deg); }
    40% { transform: rotate(-15deg); }
    50% { transform: rotate(10deg); }
    60% { transform: rotate(-10deg); }
    70% { transform: rotate(0deg); }
    100% { transform: rotate(0deg); }
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(255, 255, 255, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

/* Kelas untuk menerapkan animasi */
.spinning {
    animation: spin 2s linear infinite;
}

.ringing {
    animation: ring 0.5s ease-in-out infinite;
}

.alert-danger .danger-symbol {
    animation: pulse 1.5s infinite;
}

/* ==========================================================================
   6. RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 768px) {
    :root {
        --spacing-main: 16px;
        --spacing-card: 12px;
    }
    
    .sensor-grid, .aktuator-grid {
        grid-template-columns: 1fr;
    }
    
    .danger-symbols {
        gap: 12px;
    }

    .alert h2 {
        font-size: 1.5rem;
    }

    .alert p {
        font-size: 1rem;
    }
}