html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: #f0f2f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.card {
    border: none;
    border-radius: 12px;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
}

.form-control:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.btn-primary {
    background: linear-gradient(135deg, #0d6efd, #0b5ed7);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0b5ed7, #0a58ca);
}

.btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.navbar {
    background: linear-gradient(135deg, #1a73e8, #0d47a1) !important;
}

#loadingOverlay {
    backdrop-filter: blur(2px);
}