body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    margin: 0;
    background: radial-gradient(circle at top, #e0f2ff, #f5f5f5 40%, #eef2ff);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.auth-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 90vh;
}


.auth-card h4 {
    color: #4f46e5; 
}


.auth-card .btn-primary {
    background: linear-gradient(135deg, #4f46e5, #6366f1)!important;
    border: none !important;
    border-radius: 9px;
    font-weight: 600;
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.auth-card .btn-primary:hover {
    background: linear-gradient(135deg, #4338ca, #4f46e5) !important;
}


.auth-card .input-group-text {
    border-color: #e5e7eb;
    color: #4f46e5 !important;
    border-right: none;
}

.auth-card .form-control {
    border-left: none;
    box-shadow: none;
}

.auth-card .form-control:focus {
    border-color: #4f46e5;
}


.auth-card .card-body {
    border: none;
    background-color: transparent;
}


.auth-card {
    background-color: transparent !important;
    border-radius: 0 !important; 
    border: none !important; 
    box-shadow: none !important; 
    width: 100%;
    position: relative;
  max-width: 420px;
}


.auth-card .input-group-text {
    border: 1px solid #4f46e5 !important; /* ขอบสีม่วง */
    background-color: #f3f4ff !important; /* พื้นจาง ๆ (ถ้าไม่ต้องการลบได้) */
    color: #4f46e5 !important;
    border-right: none !important;
}

.auth-card .form-control {
    border: 1px solid #4f46e5 !important;
    border-left: none !important;
    box-shadow: none !important;
}

.auth-card .form-control:focus {
    border-color: #4338ca !important; /* ม่วงเข้มตอนโฟกัส */
    box-shadow: 0 0 0 0.15rem rgba(79, 70, 229, 0.25) !important;
}