/* Modern Reset & Global Styles */
:root {
    --primary: #050849;
    --accent: #00D4FF;
    --bg-dark: #03052b;
    --card-bg: #ffffff;
    --text-main: #333333;
    --border-radius: 12px;
}

body {
    background-color: #f4f7fa;
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
}

/* Sleek Navbar */
.navbar-main {
    background-color: var(--primary) !important;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Deep Blue Header Section */
.header-lined {
    background: linear-gradient(135deg, var(--primary) 0%, #0a0f6b 100%);
    padding: 60px 0;
    color: #fff;
    margin-bottom: 40px;
    border-radius: 0 0 40px 40px;
}

/* Modern Card Design */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(5, 8, 73, 0.05);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

/* Sidebar Styling */
.list-group-item.active {
    background-color: var(--primary);
    border-color: var(--primary);
    font-weight: 600;
}

/* Custom Buttons */
.btn-primary {
    background-color: var(--primary);
    border: none;
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 500;
}

.btn-primary:hover {
    background-color: #080c6e;
    box-shadow: 0 5px 15px rgba(5, 8, 73, 0.3);
}