@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
    --success-gradient: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --warning-gradient: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
    --danger-gradient: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    --info-gradient: linear-gradient(135deg, #0284c7 0%, #06b6d4 100%);
    --dark-sidebar-bg: #0f172a;
    --dark-sidebar-hover: #1e293b;
    --dark-sidebar-active: #3b82f6;
    --body-bg: #f8fafc;
    --card-border: rgba(226, 232, 240, 0.8);
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--body-bg);
    color: #334155;
}

/* Sidebar Styles */
.sidebar {
    width: 260px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--dark-sidebar-bg);
    color: #94a3b8;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #334155 #0f172a;
    z-index: 1040;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
}

.sidebar .brand {
    padding: 1.25rem 1.5rem;
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.025em;
    border-bottom: 1px solid #1e293b;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
}

.sidebar .section-title {
    padding: 1rem 1.5rem 0.35rem;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #64748b;
    letter-spacing: 0.08em;
}

.sidebar a {
    display: flex;
    align-items: center;
    padding: 0.65rem 1.5rem;
    color: #94a3b8;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    border-left: 3px solid transparent;
    transition: all 0.2s ease-in-out;
}

.sidebar a i {
    font-size: 1.1rem;
    margin-right: 0.75rem;
    transition: transform 0.2s ease;
}

.sidebar a:hover {
    background: var(--dark-sidebar-hover);
    color: #f8fafc;
}

.sidebar a:hover i {
    transform: translateX(2px);
}

.sidebar a.active {
    background: rgba(59, 130, 246, 0.12);
    color: #38bdf8;
    border-left-color: #38bdf8;
    font-weight: 600;
}

/* Topbar Styles */
.topbar {
    margin-left: 260px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    padding: 0.85rem 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.content-wrapper {
    margin-left: 260px;
    padding: 2rem 1.75rem;
    min-height: calc(100vh - 65px);
}

/* Glassmorphism Cards */
.glass-card {
    background: #ffffff;
    border-radius: 1rem;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.04), 0 2px 6px -1px rgba(0, 0, 0, 0.02);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card-gradient {
    border: none;
    border-radius: 1rem;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px -5px rgba(0, 0, 0, 0.1);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card-gradient:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px -5px rgba(0, 0, 0, 0.18);
}

.stat-card-gradient .icon-bg {
    position: absolute;
    right: -10px;
    bottom: -15px;
    font-size: 5.5rem;
    opacity: 0.15;
    pointer-events: none;
}

/* Custom Avatar Circle */
.avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
}

.bg-gradient-primary { background: var(--primary-gradient); }
.bg-gradient-success { background: var(--success-gradient); }
.bg-gradient-warning { background: var(--warning-gradient); }
.bg-gradient-danger { background: var(--danger-gradient); }
.bg-gradient-info { background: var(--info-gradient); }

/* Badges & Tables */
.table thead th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
    font-weight: 700;
    border-bottom: 2px solid var(--card-border);
    padding: 0.85rem 1rem;
}

.table tbody td {
    padding: 0.95rem 1rem;
}

/* Mobile Responsive */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .content-wrapper, .topbar {
        margin-left: 0;
    }
}