/* 
 * CSS cho Form Gửi Tác Phẩm (Submission Form)
 */

.submit-book-form {
    padding: 20px;
    background: #ffffff;
    border: 1px solid #e9e9e9;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.submit-book-form .form-row {
    margin-bottom: 22px;
}

.submit-book-form .form-row:last-child {
    margin-bottom: 0;
}

.submit-book-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #3c434a;
    font-size: 14px;
}

.submit-book-form input[type="text"],
.submit-book-form input[type="number"],
.submit-book-form select,
.submit-book-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
    background-color: #fdfdfd;
}

.submit-book-form input:focus,
.submit-book-form select:focus,
.submit-book-form textarea:focus {
    border-color: #2271b1;
    box-shadow: 0 0 0 1px #2271b1;
    outline: none;
}

/* --- Khu vực tải file tùy chỉnh --- */
.custom-file-upload {
    position: relative;
}

.custom-file-upload input[type="file"] {
    display: none; /* Ẩn input mặc định */
}

.custom-file-upload .file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 25px;
    border: 2px dashed #d0d5db;
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.3s, background-color 0.3s;
    text-align: center;
    background-color: #f9fafb;
}

.custom-file-upload .file-upload-label:hover {
    border-color: #2271b1;
    background-color: #f0f5fa;
}

.custom-file-upload .file-upload-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.custom-file-upload .file-upload-text {
    color: #50575e;
    font-weight: 500;
}

.custom-file-upload .file-preview {
    margin-top: 15px;
    text-align: center;
}

.custom-file-upload .file-preview img {
    max-width: 150px;
    height: auto;
    border-radius: 6px;
    border: 1px solid #ddd;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.custom-file-upload .file-preview-text {
    padding: 10px;
    background-color: #e8f5e9;
    border-left: 4px solid #4caf50;
    color: #2e7d32;
    border-radius: 4px;
}

/* --- Nút Gửi --- */
.submit-book-form .button {
    width: 100%;
    padding: 14px;
    background-color: #2271b1;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

.submit-book-form .button:hover {
    background-color: #1a5a8e;
}

.submit-book-form .button:active {
    transform: translateY(1px);
}

.submit-book-form .button:disabled {
    background-color: #949494;
    cursor: not-allowed;
}