:root {
    --bg-color: #0f172a;
    --sidebar-bg: rgba(30, 41, 59, 0.7);
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    
    --color-orange: #f59e0b;
    --color-blue: #3b82f6;
    --color-green: #10b981;
    --color-red: #ef4444;
}

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

body {
    font-family: 'Kanit', 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(245, 158, 11, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Glassmorphism utility */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Sidebar */
.sidebar {
    width: 80px; /* Default collapsed */
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 100;
}

.sidebar:hover {
    width: 280px;
    padding: 24px;
}

.sidebar-header {
    margin-bottom: 40px;
}

.logo-icon {
    font-size: 32px;
    color: var(--primary-color);
}

.sidebar-header h2 {
    font-size: 24px;
    font-weight: 600;
    background: linear-gradient(to right, #6366f1, #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0;
    pointer-events: none;
    width: 0;
    margin: 0;
    transition: all 0.3s ease;
}

.sidebar:hover .sidebar-header h2 {
    opacity: 1;
    pointer-events: auto;
    width: auto;
    margin-left: 12px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-section {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-top: 24px;
    margin-bottom: 8px;
    font-weight: 500;
    opacity: 0;
    height: 0;
    margin: 0;
    padding: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.sidebar:hover .nav-section {
    opacity: 1;
    height: auto;
    margin-top: 24px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    justify-content: center;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 400;
    white-space: nowrap;
}

.sidebar:hover .nav-item {
    justify-content: flex-start;
    padding: 12px 16px;
}

.nav-item span {
    opacity: 0;
    width: 0;
    pointer-events: none;
    position: absolute;
    transition: opacity 0.2s ease;
}

.sidebar:hover .nav-item span {
    opacity: 1;
    width: auto;
    position: relative;
}

.nav-item i {
    font-size: 20px;
}

.nav-item:hover, .nav-item.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.nav-item.active {
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.2) 0%, rgba(99, 102, 241, 0) 100%);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 32px 40px;
    overflow-y: auto;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.header-title h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.action-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-profile img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 500;
    font-size: 15px;
}

.user-role {
    font-size: 12px;
    color: var(--text-secondary);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.kpi-card {
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.kpi-icon.orange { background: rgba(245, 158, 11, 0.2); color: var(--color-orange); }
.kpi-icon.blue { background: rgba(59, 130, 246, 0.2); color: var(--color-blue); }
.kpi-icon.green { background: rgba(16, 185, 129, 0.2); color: var(--color-green); }
.kpi-icon.red { background: rgba(239, 68, 68, 0.2); color: var(--color-red); }

.kpi-card.critical {
    border: 1px solid rgba(239, 68, 68, 0.3);
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.6) 0%, rgba(239, 68, 68, 0.05) 100%);
}

.kpi-details h3 {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    font-family: 'Inter', sans-serif;
}

.kpi-trend {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.kpi-trend.positive { color: var(--color-green); }
.kpi-trend.negative { color: var(--color-red); }
.text-red { color: var(--color-red); }

/* Charts */
.charts-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.chart-card {
    padding: 24px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.card-header h3 {
    font-size: 18px;
    font-weight: 500;
}

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

/* Table */
.table-section {
    padding: 24px;
}

.view-all-btn {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    padding: 16px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
    border-bottom: 1px solid var(--glass-border);
}

.data-table td {
    padding: 16px;
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table tbody tr {
    transition: background 0.3s ease;
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-critical {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Responsive */
@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .main-content {
        padding: 20px;
    }
}

/* Modal Styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    padding: 32px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 16px;
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 8px;
}

.close-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

/* Form Groups in Modal */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 12px 16px;
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    transition: all 0.2s ease;
    width: 100%;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Animations */
@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}