/* ==========================================================================
   JSON 格式化工具 - 紧凑现代主题 (与 yst-tool-shell 协同)
   命名前缀: .jf-*  避免与 yst-* 冲突
   ========================================================================== */

/* -------- 页面标题区 -------- */
.jf-page-header {
    margin-bottom: 20px;
}
.jf-page-title {
    font: 700 28px/1.2 var(--yst-font);
    letter-spacing: var(--yst-letter-spacing);
    color: var(--yst-text);
    margin: 0 0 8px;
}
.jf-page-desc {
    font-size: 14px;
    color: var(--yst-text-2);
    letter-spacing: var(--yst-letter-spacing);
    margin: 0 0 14px;
}
.jf-feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.jf-tag {
    display: inline-flex;
    align-items: center;
    height: 22px;
    padding: 0 9px;
    background: var(--yst-bg-subtle);
    border: 1px solid var(--yst-border);
    border-radius: 5px;
    color: var(--yst-text-muted);
    font: 600 11px/1 var(--yst-font-mono, "SF Mono", "Monaco", monospace);
    letter-spacing: 0.5px;
    text-transform: lowercase;
}

/* -------- 主功能卡片 -------- */
.jf-card {
    padding: 18px 20px;
    margin-bottom: 16px;
}

/* -------- 工具栏 (跨两栏共享) -------- */
.jf-toolbar-card {
    padding: 12px 16px;
    margin-bottom: 14px;
}
.jf-toolbar-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    justify-content: space-between;
}
.jf-toolbar-row .jf-options {
    margin-top: 0;
    background: transparent;
    padding: 0;
    flex: 0 0 auto;
}
.jf-toolbar-row .jf-actions {
    margin-top: 0;
    flex: 1;
    justify-content: flex-end;
}

/* -------- 左右两栏布局 -------- */
.jf-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}
.jf-pane {
    display: flex;
    flex-direction: column;
    margin-bottom: 0;
}
.jf-pane .jf-editor-wrap {
    flex: 1;
}
.jf-pane .jf-editor {
    min-height: 420px;
    max-height: 70vh;
}
@media (max-width: 1023px) {
    .jf-split { grid-template-columns: 1fr; }
    .jf-pane .jf-editor { min-height: 280px; }
    .jf-toolbar-row .jf-actions { justify-content: flex-start; }
}

/* -------- 区块标题栏 -------- */
.jf-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--yst-border);
}
.jf-section-left {
    display: flex;
    align-items: baseline;
    gap: 10px;
}
.jf-section-label {
    font: 700 14px var(--yst-font);
    letter-spacing: var(--yst-letter-spacing);
    color: var(--yst-text);
}
.jf-section-desc {
    font-size: 12px;
    color: var(--yst-text-muted);
    letter-spacing: var(--yst-letter-spacing);
}
.jf-section-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 统计 pill */
.jf-stat-pill,
.jf-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 9px;
    background: var(--yst-bg-subtle);
    border: 1px solid var(--yst-border);
    border-radius: 999px;
    font: 500 11px/1.4 var(--yst-font);
    color: var(--yst-text-2);
    letter-spacing: 0.3px;
}
.jf-stat-pill strong,
.jf-status-pill strong {
    color: var(--yst-brand);
    font-weight: 700;
    font-family: var(--yst-font-mono, monospace);
}
.jf-status-pill {
    background: rgba(0, 158, 148, 0.08);
    border-color: rgba(0, 158, 148, 0.2);
    color: var(--yst-brand);
    font-weight: 600;
}

/* -------- 加载示例按钮 -------- */
.jf-example-btn {
    height: 24px;
    padding: 0 10px;
    background: linear-gradient(180deg, #fff 0%, #f5fafa 100%);
    border: 1px solid var(--yst-border-strong);
    border-radius: 999px;
    color: var(--yst-brand);
    font: 600 11px/1 var(--yst-font);
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all .15s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.jf-example-btn::before {
    content: "↓";
    font-size: 12px;
    margin-right: 1px;
}
.jf-example-btn:hover {
    background: var(--yst-brand);
    color: #fff;
    border-color: var(--yst-brand);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 158, 148, 0.25);
}

/* -------- 编辑器外框 + 行号 -------- */
.jf-editor-wrap {
    position: relative;
    display: flex;
    background: #fafafa;
    border: 1.5px solid var(--yst-border);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color .15s, box-shadow .15s;
}
.jf-editor-wrap:focus-within {
    border-color: var(--yst-brand);
    box-shadow: 0 0 0 3px rgba(0, 158, 148, 0.12);
}
.jf-line-numbers {
    flex-shrink: 0;
    width: 48px;
    padding: 12px 0;
    background: #f0f4f4;
    border-right: 1px solid var(--yst-border);
    font: 13px/1.6 var(--yst-font-mono, "SF Mono", "Monaco", monospace);
    color: var(--yst-text-light);
    text-align: right;
    user-select: none;
    overflow: hidden;
}
.jf-line-numbers > div {
    padding: 0 10px 0 0;
}
.jf-editor {
    flex: 1;
    width: 100%;
    min-height: 280px;
    max-height: 600px;
    padding: 12px 14px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--yst-text);
    font: 13px/1.6 var(--yst-font-mono, "SF Mono", "Monaco", monospace);
    resize: vertical;
    tab-size: 4;
}
.jf-editor::placeholder {
    color: var(--yst-text-light);
    font-style: italic;
}
.jf-editor[readonly] {
    background: #f8f8f8;
}

/* -------- 错误提示 -------- */
.jf-error {
    margin-top: 10px;
    padding: 10px 14px;
    background: rgba(220, 38, 38, 0.06);
    border: 1px solid rgba(220, 38, 38, 0.25);
    border-left: 3px solid var(--yst-danger, #dc2626);
    border-radius: 6px;
}
.jf-error-title {
    font: 700 13px var(--yst-font);
    color: var(--yst-danger, #dc2626);
    margin-bottom: 4px;
}
.jf-error-message {
    font: 12px/1.5 var(--yst-font-mono, monospace);
    color: var(--yst-text-2);
    word-break: break-all;
}

/* -------- 选项行 -------- */
.jf-options {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-top: 12px;
    padding: 10px 12px;
    background: var(--yst-bg-subtle);
    border-radius: 6px;
}
.jf-option {
    display: flex;
    align-items: center;
    gap: 8px;
}
.jf-option label {
    font: 500 13px var(--yst-font);
    color: var(--yst-text-2);
    letter-spacing: var(--yst-letter-spacing);
}
.jf-select {
    height: 30px;
    padding: 0 8px;
    background: #fff;
    border: 1px solid var(--yst-border-strong);
    border-radius: 5px;
    font: 500 13px var(--yst-font);
    color: var(--yst-text);
    cursor: pointer;
    transition: border-color .15s;
}
.jf-select:hover {
    border-color: var(--yst-brand);
}
.jf-select:focus {
    outline: none;
    border-color: var(--yst-brand);
    box-shadow: 0 0 0 3px rgba(0, 158, 148, 0.12);
}
.jf-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font: 500 13px var(--yst-font);
    color: var(--yst-text-2);
    letter-spacing: var(--yst-letter-spacing);
    user-select: none;
}
.jf-checkbox input {
    width: 14px; height: 14px;
    margin: 0;
    accent-color: var(--yst-brand);
    cursor: pointer;
}

/* -------- 操作按钮组 -------- */
.jf-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
}
.jf-actions-divider {
    width: 1px;
    height: 22px;
    background: var(--yst-border);
    margin: 0 4px;
}
.jf-btn-danger {
    color: var(--yst-danger, #dc2626) !important;
    border-color: rgba(220, 38, 38, 0.3) !important;
}
.jf-btn-danger:hover {
    background: rgba(220, 38, 38, 0.08) !important;
    color: var(--yst-danger, #dc2626) !important;
    border-color: var(--yst-danger, #dc2626) !important;
}

/* -------- 信息卡 (功能说明 / FAQ) -------- */
.jf-info {
    padding: 18px 22px;
    margin-bottom: 16px;
}
.jf-feature h3 {
    font: 700 14px/1.4 var(--yst-font);
    letter-spacing: var(--yst-letter-spacing);
    color: var(--yst-text);
    margin: 0 0 6px;
    position: relative;
    padding-left: 12px;
}
.jf-feature h3::before {
    content: "";
    position: absolute;
    left: 0; top: 5px; bottom: 5px;
    width: 3px;
    background: var(--yst-brand);
    border-radius: 0 2px 2px 0;
}
.jf-feature p {
    font: 13px/1.6 var(--yst-font);
    color: var(--yst-text-2);
    letter-spacing: var(--yst-letter-spacing);
    margin: 0;
}
.jf-faq h3 {
    margin-top: 14px;
}
.jf-faq h3:first-child { margin-top: 0; }
.jf-faq p {
    font: 13px/1.7 var(--yst-font);
    color: var(--yst-text-2);
    letter-spacing: var(--yst-letter-spacing);
    margin: 6px 0 12px;
}
.jf-faq code {
    padding: 1px 6px;
    background: var(--yst-bg-subtle);
    border: 1px solid var(--yst-border);
    border-radius: 3px;
    font: 12px var(--yst-font-mono, monospace);
    color: var(--yst-brand);
}

/* -------- 移动端 -------- */
@media (max-width: 768px) {
    .jf-page-title { font-size: 22px; }
    .jf-card, .jf-info { padding: 14px 14px; }
    .jf-section-header { flex-direction: column; align-items: flex-start; }
    .jf-actions { gap: 6px; }
    .jf-actions-divider { display: none; }
    .jf-line-numbers { width: 36px; }
    .jf-editor { font-size: 12px; }
}