:root {
    --primary-dark: #0f172a;
    --primary: #1e293b;
    --accent: #10b981;
    --background: #f1f5f9;
    --text-main: #334155;
    --text-secondary: #64748b;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    color: var(--primary);
    font-weight: 700;
}

.navbar {
    background-color: var(--primary-dark) !important;
}

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

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

.btn-accent {
    background-color: var(--accent);
    color: white;
    font-weight: 600;
    border-radius: 0.375rem; /* Bootstrap rounded */
    border: none;
}

.btn-accent:hover {
    background-color: #0d9668; /* slightly darker green for hover */
    color: white;
}

.stat-card {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 0.5rem; /* rounded corners */
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05); /* subtle shadow */
}

.dashboard-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--text-main) 100%);
    color: white;
    padding: 2rem;
    margin-bottom: -4rem; /* negative bottom margin */
    border-radius: 0.5rem;
}

.card {
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--text-secondary) 100%);
    color: white;
    padding: 100px 0;
}

.footer {
    background-color: var(--primary-dark);
    color: white;
    padding: 20px 0;
    margin-top: 50px;
}