/* Pastel Renk Paleti */
:root {
    --pastel-blue: #a8d8ea;
    --pastel-purple: #aa96da;
    --pastel-pink: #fcbad3;
    --pastel-yellow: #ffffd2;
    --pastel-green: #b5ead7;
    --pastel-orange: #ffdac1;
    --pastel-mint: #c7ecee;
    --pastel-lavender: #dfe6e9;
    --dark-text: #2d3436;
    --light-text: #636e72;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--pastel-lavender) 0%, var(--pastel-mint) 100%);
    min-height: 100vh;
    margin: 0;
    color: var(--dark-text);
}

.main-container {
    padding: 20px;
    max-width: 1600px;
    margin: 0 auto;
}

/* Header */
.dashboard-header {
    background: linear-gradient(135deg, var(--pastel-purple) 0%, var(--pastel-blue) 100%);
    border-radius: 20px;
    padding: 25px 30px;
    margin-bottom: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.dashboard-header h1 {
    margin: 0;
    font-weight: 700;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.dashboard-header p {
    margin: 5px 0 0;
    color: rgba(255, 255, 255, 0.9);
}

/* Cards */
.card {
    border: none;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.card-header {
    background: linear-gradient(135deg, var(--pastel-blue) 0%, var(--pastel-green) 100%);
    border-bottom: none;
    padding: 15px 20px;
    font-weight: 600;
    color: var(--dark-text);
}

.card-header.purple {
    background: linear-gradient(135deg, var(--pastel-purple) 0%, var(--pastel-pink) 100%);
}

.card-header.orange {
    background: linear-gradient(135deg, var(--pastel-orange) 0%, var(--pastel-yellow) 100%);
}

.card-header.green {
    background: linear-gradient(135deg, var(--pastel-green) 0%, var(--pastel-mint) 100%);
}

.card-body {
    padding: 20px;
    background: white;
}

/* Device List */
.device-list {
    max-height: 400px;
    overflow-y: auto;
}

.device-item {
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--pastel-lavender);
    border: 2px solid transparent;
}

.device-item:hover {
    background: var(--pastel-blue);
    transform: scale(1.02);
}

.device-item.selected {
    background: linear-gradient(135deg, var(--pastel-purple) 0%, var(--pastel-blue) 100%);
    border-color: var(--pastel-purple);
    color: white;
}

.device-item .device-name {
    font-weight: 600;
    font-size: 1.1em;
}

.device-item .device-info {
    font-size: 0.85em;
    opacity: 0.8;
}

.device-item .last-seen {
    font-size: 0.8em;
    margin-top: 5px;
}

/* Map Container */
#map {
    height: 450px;
    border-radius: 12px;
    z-index: 1;
}

/* Custom Markers */
.custom-marker {
    background: none;
    border: none;
}

.marker-pin {
    font-size: 28px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.marker-pin.latest {
    color: #e74c3c;
    animation: pulse 2s infinite;
}

.marker-pin.history {
    color: #6c5ce7;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* Stats Cards */
.stat-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.stat-card .stat-icon {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.stat-card .stat-value {
    font-size: 2em;
    font-weight: 700;
    color: var(--dark-text);
}

.stat-card .stat-label {
    font-size: 0.9em;
    color: var(--light-text);
}

.stat-card.blue { background: linear-gradient(135deg, var(--pastel-blue) 0%, white 100%); }
.stat-card.purple { background: linear-gradient(135deg, var(--pastel-purple) 0%, white 100%); }
.stat-card.green { background: linear-gradient(135deg, var(--pastel-green) 0%, white 100%); }
.stat-card.orange { background: linear-gradient(135deg, var(--pastel-orange) 0%, white 100%); }

/* Table */
.table {
    margin-bottom: 0;
}

.table thead th {
    background: var(--pastel-lavender);
    border-bottom: none;
    font-weight: 600;
    color: var(--dark-text);
    padding: 12px 15px;
}

.table tbody td {
    padding: 12px 15px;
    vertical-align: middle;
    border-color: #f1f2f6;
}

.table tbody tr:hover {
    background: var(--pastel-yellow);
}

.table-container {
    max-height: 350px;
    overflow-y: auto;
    border-radius: 12px;
}

/* Badges */
.badge-battery {
    padding: 5px 10px;
    border-radius: 20px;
    font-weight: 500;
}

.badge-battery.high {
    background: var(--pastel-green);
    color: #27ae60;
}

.badge-battery.medium {
    background: var(--pastel-orange);
    color: #e67e22;
}

.badge-battery.low {
    background: var(--pastel-pink);
    color: #e74c3c;
}

/* Loading */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--pastel-lavender);
    border-top-color: var(--pastel-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Buttons */
.btn-pastel {
    border-radius: 25px;
    padding: 10px 25px;
    font-weight: 500;
    border: none;
    transition: all 0.3s ease;
}

.btn-pastel-purple {
    background: linear-gradient(135deg, var(--pastel-purple) 0%, var(--pastel-pink) 100%);
    color: white;
}

.btn-pastel-purple:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(170, 150, 218, 0.4);
    color: white;
}

.btn-pastel-blue {
    background: linear-gradient(135deg, var(--pastel-blue) 0%, var(--pastel-mint) 100%);
    color: var(--dark-text);
}

.btn-pastel-blue:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(168, 216, 234, 0.4);
}

/* Alert */
.alert-pastel {
    border-radius: 12px;
    border: none;
    padding: 15px 20px;
}

.alert-pastel.warning {
    background: var(--pastel-orange);
    color: #d35400;
}

.alert-pastel.info {
    background: var(--pastel-blue);
    color: #2980b9;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--pastel-lavender);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--pastel-purple);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9b59b6;
}

/* Responsive */
@media (max-width: 768px) {
    .main-container {
        padding: 10px;
    }
    
    .dashboard-header {
        padding: 15px 20px;
    }
    
    .dashboard-header h1 {
        font-size: 1.5em;
    }
    
    #map {
        height: 300px;
    }
    
    .stat-card .stat-value {
        font-size: 1.5em;
    }
}

/* No Data */
.no-data {
    text-align: center;
    padding: 40px;
    color: var(--light-text);
}

.no-data i {
    font-size: 4em;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* Date Filter */
.form-control-sm {
    border-radius: 8px;
    border: 1px solid var(--pastel-lavender);
    font-size: 0.8em;
}

.form-control-sm:focus {
    border-color: var(--pastel-purple);
    box-shadow: 0 0 0 3px rgba(170, 150, 218, 0.2);
}

.btn-group .btn {
    font-size: 0.75em;
    padding: 4px 8px;
}

.btn-outline-secondary {
    border-color: var(--pastel-lavender);
    color: var(--dark-text);
}

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

.form-label {
    color: var(--light-text);
    font-weight: 500;
}

/* Alert Pulse Animation */
.stat-card.pulse {
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% {
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
    50% {
        box-shadow: 0 10px 30px rgba(255, 165, 0, 0.5);
    }
    100% {
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
}

/* Alert Table */
.card.border-warning {
    border-width: 2px;
}

.card.border-warning .card-header {
    border-bottom: 2px solid #ffc107;
}