body {
    background: #f4f6f9;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.app {
    max-width: 420px;
    margin: auto;
}

.top-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    background: #0f172a;
    color: #fff;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
}

.top-header small {
    font-size: 12px;
    color: #cbd5f5;
}

.top-header h4 {
    font-size: 18px;
    margin-top: 4px;
}

.back-icon {
    color: #fff;
    font-size: 20px;
}

.card.form-card {
    margin: 18px 20px;
    padding: 18px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: #1f2937;
    font-size: 14px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 10px;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    font-size: 14px;
}

.btn-save {
    width: 100%;
    background: #2563eb;
    color: #fff;
    padding: 12px 0;
    border: none;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
}