body {
    background-color: #f1f5f9;
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: #334155;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.main-card {
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 16px;
    box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    background: #ffffff;
}
.form-control, .form-select {
    border-radius: 10px;
    padding: 12px 16px;
    border-color: #cbd5e1;
    background-color: #f8fafc;
    font-size: 0.95rem;
    transition: all 0.2s;
}
.form-control:focus, .form-select:focus {
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    border-color: #2563eb;
}
.input-group-text {
    border-radius: 10px 0 0 10px;
    background-color: #e2e8f0;
    border-color: #cbd5e1;
    font-weight: 600;
    color: #334155;
}
.btn-primary {
    background-color: #2563eb;
    border: none;
    border-radius: 10px;
    padding: 12px;
    font-weight: 600;
    transition: all 0.2s;
}
.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-1px);
}
.brand-title {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #0f172a;
}
.nav-link {
    color: #64748b;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-link:hover {
    color: #2563eb;
}