/* --- 提交表单 --- */
body.theme-ethereal .form-group input,
body.theme-ethereal .form-group textarea,
body.theme-ethereal .form-group select {
	background: var(--bg-elevated);
	border-color: var(--border-color);
	color: var(--text-primary);
}
body.theme-ethereal .form-group input:focus,
body.theme-ethereal .form-group textarea:focus {
	border-color: var(--iris);
	box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.15);
}


/* --- 提交表单 --- */
body.theme-ethereal .submission-form__input:focus,
body.theme-ethereal .submission-form__textarea:focus,
body.theme-ethereal .submission-form__select:focus {
	border-color: var(--iris);
	box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.15);
}
body.theme-ethereal .difficulty-option input:checked + .difficulty-option__label {
	border-color: var(--iris);
	background: rgba(0, 212, 255, 0.1);
	color: var(--iris);
}


/* 表单区块 */
.submission-form__group {
    margin-bottom: 2rem;
}
.submission-form__label {
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}
.submission-form__label .required {
    color: var(--error);
    margin-left: 2px;
}
.submission-form__input,
.submission-form__textarea,
.submission-form__select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.submission-form__input:focus,
.submission-form__textarea:focus,
.submission-form__select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15);
}
.submission-form__textarea {
    min-height: 160px;
    resize: vertical;
    line-height: 1.6;
}


/* 行内字段 */
.submission-form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
@media (max-width: 768px) {
    .submission-form__row {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   两列布局：左=内容填写，右=图片上传（左右互补）
   ============================================================ */
.submission-form__columns {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 2rem;
    align-items: start;
}
.submission-form__col {
    min-width: 0;
}
.submission-form__col--media {
    position: sticky;
    top: 1.5rem;
}
@media (max-width: 900px) {
    .submission-form__columns {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .submission-form__col--media {
        position: static;
    }
}


/* 难度选择 */
.difficulty-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.difficulty-option {
    position: relative;
}
.difficulty-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.difficulty-option__label {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}
.difficulty-option input:checked + .difficulty-option__label {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.08);
    color: var(--accent);
}
.difficulty-option__label:hover {
    border-color: var(--accent);
}


/* 表单提示 */
.submission-form__hint {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}


/* 标签逐词输入 */
.tag-input {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    padding: 8px 10px;
    transition: border-color 0.2s;
}
.tag-input:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15);
}
.tag-input__list {
    list-style: none;
    margin: 0 0 8px;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tag-input__list:empty {
    margin-bottom: 0;
}
.tag-input__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px 5px 12px;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.16), rgba(var(--accent-rgb), 0.08));
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb), 0.28);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    animation: tag-pop 0.18s ease;
}
@keyframes tag-pop {
    from { transform: scale(0.8); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
    .tag-input__chip { animation: none; }
}
.tag-input__remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border: none;
    background: rgba(var(--accent-rgb), 0.18);
    color: var(--accent);
    cursor: pointer;
    font-size: 12px;
    line-height: 1;
    border-radius: 50%;
    padding: 0;
    opacity: 0.85;
    transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.tag-input__remove:hover {
    background: var(--accent);
    color: #fff;
    opacity: 1;
    transform: scale(1.1);
}
.tag-input__field {
    display: flex;
    gap: 8px;
    align-items: stretch;
}
.tag-input__text {
    flex: 1;
    border: none;
    box-shadow: none;
    background: transparent;
    padding-left: 0;
    padding-right: 0;
}
.tag-input__text:focus {
    border: none;
    box-shadow: none;
}
.tag-input__add {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0 18px;
    border: none;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent), rgba(var(--accent-rgb), 0.75));
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.25);
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}
.tag-input__add::before {
    content: '\002B';
    font-size: 16px;
    font-weight: 700;
    line-height: 1;
}
.tag-input__add:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.35);
    filter: brightness(1.05);
}
.tag-input__add:active {
    transform: translateY(0);
    box-shadow: 0 1px 6px rgba(var(--accent-rgb), 0.3);
}

/* ============================================================
   图片上传区域
   ============================================================ */

.submission-upload {
    position: relative;
}
.submission-upload__preview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}
.submission-upload__thumb {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-light);
    background: var(--bg-card);
}
.submission-upload__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.submission-upload__thumb.uploading {
    display: flex;
    align-items: center;
    justify-content: center;
}
.submission-upload__progress {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
}
.submission-upload__remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 50%;
    background: rgba(0,0,0,0.7);
    color: #fff;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}
.submission-upload__thumb:hover .submission-upload__remove {
    opacity: 1;
}
.submission-upload__dropzone {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    font-size: 14px;
}
.submission-upload__dropzone:hover,
.submission-upload__dropzone.dragover {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.04);
    color: var(--accent);
}
.submission-upload__dropzone.has-images {
    padding: 1rem;
    font-size: 13px;
}
.submission-upload__limit {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 6px;
}
.submission-upload__dropzone.hidden {
    display: none;
}

/* ============================================================
   表单按钮
   ============================================================ */

.submission-form__actions {
    display: flex;
    gap: 12px;
    margin-top: 2rem;
}


/* ============================================================
   分类级联（一级 + 二级）
   ============================================================ */
.submission-form__group--cat .cat-cascade {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.submission-form__group--cat .cat-cascade .submission-form__select {
    width: 100%;
}
@media (min-width: 520px) {
    .submission-form__group--cat .cat-cascade {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .submission-form__group--cat .cat-cascade .submission-form__select {
        flex: 1 1 160px;
        min-width: 0;
    }
}