:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --error-color: red;
    --text-color: #6c6b6b;
    --border-color: #ccc;
    --font-size-small: 12px;
    --font-size-normal: 14px;
    --input-padding: 10px;
    --border-radius: 5px;
}

/* Cấu trúc chung */
.input-container {
    position: relative;
    padding-left: 0;
    padding-right: 5px;
    margin-bottom: 20px;
}

.input-container input {
    width: 100%;
    padding: var(--input-padding) 0;
    font-size: var(--font-size-normal);
    border: none;
    border-bottom: 1px solid var(--border-color);
    background: transparent;
    outline: none;
    transition: border-color 0.3s;
}

/* Label styling */
.input-container .form-label {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    font-size: var(--font-size-normal);
    color: var(--text-color);
    transition: 0.3s ease-in-out;
    pointer-events: none;
}

/* Thêm dấu sao đỏ */
.input-container .form-label::after {
    content: " *";
    color: var(--error-color);
}

/* Input focus */
.input-container input:focus {
    border-bottom-color: var(--primary-color);
}

.input-container input:focus + .form-label,
.input-container input:not(:placeholder-shown) + .form-label {
    top: 0;
    font-size: var(--font-size-small);
    color: var(--primary-color);
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 55%;
    transform: translateY(-50%);
    cursor: pointer;
}

.eye-icon {
    fill: #888;
    transition: fill 0.3s;
}

.eye-slash {
    display: block; /* Mặc định hiển thị gạch */
}

.toggle-password.error-active {
    top: 25% !important;
}

/* Khi có lỗi */
input.parsley-error {
    border-bottom: 2px solid var(--error-color) !important;
}

input.parsley-error + .form-label {
    color: var(--error-color) !important;
    top: 30%;
    transition: 0.3s ease-in-out;
}

/* Thông báo lỗi */
.parsley-errors-list {
    color: var(--error-color);
    font-size: var(--font-size-small);
    margin-top: 5px;
    list-style: none;
    padding-left: 0;
}

/* Button đăng ký */
.btn-register {
    background-color: var(--primary-color);
    color: white;
    /* padding: var(--input-padding); */
    border: none;
    font-size: var(--font-size-normal);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: background-color 0.3s;
}

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