:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --secondary: #10B981;
    --dark: #1E293B;
    --light: #F8FAFC;
    --gray: #64748B;
    --gray-light: #E2E8F0;
    --danger: #EF4444;
    --card-bg: rgba(255, 255, 255, 0.9);
    --body-bg: #F1F5F9;
    --text-color: #334155;
    --sidebar-width: 260px;
    --font-family: 'Inter', sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--body-bg);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
}

/* Glassmorphism Utilities */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s, box-shadow 0.2s;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Auth Pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
}

.auth-card {
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
}

.btn-primary-custom {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
    font-weight: 500;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.btn-primary-custom:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: white;
}

.form-control {
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-light);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
}

/* Sidebar & Layout */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--dark);
    color: var(--light);
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: all 0.3s;
}

.main-content {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    min-height: 100vh;
    transition: all 0.3s;
}

.sidebar-header {
    padding: 1.5rem;
    font-size: 1.25rem;
    font-weight: bold;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.7);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s;
    border-radius: 0;
}

.nav-link:hover, .nav-link.active {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    border-left: 4px solid var(--primary);
}

.nav-link i {
    width: 20px;
    text-align: center;
}

/* Dashboard Cards */
.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.kpi-primary { background: #EEF2FF; color: var(--primary); }
.kpi-success { background: #ECFDF5; color: var(--secondary); }
.kpi-danger { background: #FEF2F2; color: var(--danger); }

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
}