/* =============================================================
 * 图片处理工具专属共享样式（image-tools.css）
 * -------------------------------------------------------------
 * 仅被 /tools/image/* 下的工具页面引用，绝不修改公共 common.css。
 * 公共文件已定义的变量（--primary / --primary-dark / --bg-body /
 * --bg-card / --text-primary / --text-secondary / --border-color /
 * --radius-sm 等）直接复用，本文件只补充图片工具专属的语义变量
 * 与组件类，并对深色模式做覆盖。旧工具不引用本文件，零风险。
 * ============================================================= */

/* ---- 图片工具专属语义变量（公共文件未定义，此处补齐） ---- */
:root {
    --radius: 8px;
    --code-bg: #f6f8fa;
    --code-border: #e3e8ef;
    --tip-bg: rgba(255, 107, 0, 0.10);
    --tip-tx: #b35000;
    --wait-bg: #fff7e6;
    --wait-tx: #8a6100;
    --wait-border: #f3d98a;
    --ok-bg: #e9f8ee;
    --ok-tx: #1d7a3e;
    --ok-border: #a8e0bd;
    --err-bg: #fdecec;
    --err-tx: #c0392b;
    --err-border: #f3b7b1;
    --out-bg: #f6f8fa;
    --out-border: #e3e8ef;
    --sv-hl: #ff6b00;
    --line: #e3e8ef;
    --canvas-bg: #ffffff;
}

[data-theme="dark"] {
    --code-bg: #1b1f24;
    --code-border: #2c333c;
    --tip-bg: rgba(255, 107, 0, 0.16);
    --tip-tx: #ffae6b;
    --wait-bg: #3a3320;
    --wait-tx: #f0c869;
    --wait-border: #5c4f2a;
    --ok-bg: #1c3326;
    --ok-tx: #6bd99a;
    --ok-border: #2e5a44;
    --err-bg: #3a2424;
    --err-tx: #f08a82;
    --err-border: #5c3633;
    --out-bg: #1b1f24;
    --out-border: #2c333c;
    --sv-hl: #ff8a3d;
    --line: #2c333c;
    --canvas-bg: #16191d;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --code-bg: #1b1f24;
        --code-border: #2c333c;
        --tip-bg: rgba(255, 107, 0, 0.16);
        --tip-tx: #ffae6b;
        --wait-bg: #3a3320;
        --wait-tx: #f0c869;
        --wait-border: #5c4f2a;
        --ok-bg: #1c3326;
        --ok-tx: #6bd99a;
        --ok-border: #2e5a44;
        --err-bg: #3a2424;
        --err-tx: #f08a82;
        --err-border: #5c3633;
        --out-bg: #1b1f24;
        --out-border: #2c333c;
        --sv-hl: #ff8a3d;
        --line: #2c333c;
        --canvas-bg: #16191d;
    }
}

/* ---- 代码 / 文本域（base64 输出等） ---- */
.code-area {
    width: 100%;
    box-sizing: border-box;
    min-height: 200px;
    resize: vertical;
    padding: 12px 14px;
    border: 1px solid var(--code-border);
    border-radius: var(--radius-sm);
    background: var(--code-bg);
    color: var(--text-primary);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
    font-size: 13px;
    line-height: 1.6;
}
.code-area:focus { outline: none; border-color: var(--primary); }

/* ---- 双栏（输入/输出或原图/结果） ---- */
.io-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 14px 0;
}
.io-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.io-label .cnt { color: var(--text-secondary); font-size: 12px; }

/* ---- 表单元素 ---- */
.form-item { margin: 12px 0; }
.form-row { display: flex; flex-wrap: wrap; gap: 16px; margin: 12px 0; }
.form-input, .form-select {
    padding: 8px 11px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-body);
    color: var(--text-primary);
    font-size: 14px;
    box-sizing: border-box;
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--primary); }
.check-item {
    display: flex; align-items: center; gap: 7px;
    font-size: 13px; color: var(--text-primary); cursor: pointer;
}
.check-item input { width: 15px; height: 15px; accent-color: var(--primary); }

/* ---- 统计卡片 ---- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin: 16px 0;
}
.stat-card {
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}
.stat-card .num { font-size: 22px; font-weight: 700; color: var(--text-primary); }
.stat-card .lab { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.st-title { font-size: 13px; color: var(--text-secondary); margin: 14px 0 6px; }
.sv { font-weight: 600; }
.sv.hl { color: var(--sv-hl); }
.sl { font-size: 12px; color: var(--text-secondary); }
.row-label { font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.cnt { color: var(--text-secondary); font-size: 12px; }
.blue { color: var(--primary); }

/* ---- 状态提示（三色） ---- */
.status, .status-box {
    display: none;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin: 12px 0;
    border: 1px solid transparent;
    line-height: 1.6;
}
.status.show, .status-box.show { display: block; }
.status.wait, .status-box.wait { background: var(--wait-bg); color: var(--wait-tx); border-color: var(--wait-border); }
.status.ok, .status-box.ok { background: var(--ok-bg); color: var(--ok-tx); border-color: var(--ok-border); }
.status.err, .status-box.err { background: var(--err-bg); color: var(--err-tx); border-color: var(--err-border); }

/* ---- 说明提示框 ---- */
.form-tip {
    background: var(--tip-bg);
    color: var(--tip-tx);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 13px;
    line-height: 1.6;
    margin: 12px 0;
}
.form-tip code { background: rgba(0,0,0,0.06); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.form-tip b { color: var(--tip-tx); }

/* ---- 按钮组 ---- */
.btn-row, .btn-group {
    display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0;
}
.btn-ghost {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
    cursor: pointer; border: 1px solid var(--border-color);
    background: transparent; color: var(--text-secondary); transition: all 0.2s;
}
.btn-ghost:hover { background: var(--tip-bg); color: var(--primary); border-color: var(--primary); }

/* ---- 工具按钮（动作主按钮） ---- */
.tool-btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
    cursor: pointer; border: 1px solid var(--border-color);
    background: var(--bg-body); color: var(--text-primary); transition: all 0.2s;
}
.tool-btn:hover { border-color: var(--primary); color: var(--primary); }
.tool-btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.tool-btn.primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.tool-btn.ghost { background: transparent; color: var(--text-secondary); border-color: var(--border-color); }
.tool-btn.ghost:hover { background: var(--tip-bg); color: var(--primary); border-color: var(--primary); }

/* ---- 选项 / 模式 ---- */
.opts {
    display: flex; gap: 18px; margin: 14px 0 18px; padding: 12px 16px;
    background: var(--bg-body); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); flex-wrap: wrap;
}
.opt { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-primary); }
.opt input { width: 15px; height: 15px; accent-color: var(--primary); }
.modes { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.mode-item {
    display: flex; align-items: center; gap: 8px; padding: 10px 16px;
    border: 1px solid var(--border-color); border-radius: var(--radius-sm);
    cursor: pointer; font-size: 14px; color: var(--text-primary);
    background: var(--bg-body); transition: 0.15s;
}
.mode-item:hover { border-color: var(--primary); }
.mode-item input { width: 15px; height: 15px; accent-color: var(--primary); }
.mode-item.checked { border-color: var(--primary); background: var(--tip-bg); color: var(--tip-tx); font-weight: 600; }

/* ---- 结果 / 输出区 ---- */
.result-box {
    background: var(--out-bg); border: 1px solid var(--out-border);
    border-radius: var(--radius-sm); padding: 12px 14px; margin: 12px 0;
    font-size: 13px; line-height: 1.6; white-space: pre-wrap; word-break: break-all;
}
.badge {
    font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 20px;
    background: var(--tip-bg); color: var(--tip-tx);
}

/* ---- 选项卡 ---- */
.tab-bar { display: flex; gap: 4px; border-bottom: 1px solid var(--border-color); margin: 14px 0 12px; }
.tab-btn {
    padding: 8px 14px; border: none; background: transparent; color: var(--text-secondary);
    cursor: pointer; font-size: 14px; border-bottom: 2px solid transparent;
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
@media (max-width: 768px) {
    .tab-bar { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
    .tab-bar::-webkit-scrollbar { display: none; }
    .tab-btn { white-space: nowrap; flex-shrink: 0; font-size: 13px; padding: 8px 12px; }
}

/* =========================================================
 * 图片工具专属组件
 * ========================================================= */

/* 拖拽上传区 */
.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-body);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: 0.15s;
    margin: 14px 0;
}
.dropzone:hover, .dropzone.drag {
    border-color: var(--primary);
    background: var(--tip-bg);
}
.dz-icon { font-size: 38px; line-height: 1; margin-bottom: 8px; }
.dz-text { font-size: 15px; color: var(--text-primary); font-weight: 500; }
.dz-text .blue { color: var(--primary); }
.dz-hint { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

/* 预览区（画布容器，含透明棋盘格） */
.preview-area {
    margin: 14px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.canvas-box {
    max-width: 100%;
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background:
        linear-gradient(45deg, #e9edf2 25%, transparent 25%),
        linear-gradient(-45deg, #e9edf2 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e9edf2 75%),
        linear-gradient(-45deg, transparent 75%, #e9edf2 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    background-color: var(--canvas-bg);
    padding: 8px;
    line-height: 0;
}
[data-theme="dark"] .canvas-box,
:root:not([data-theme="light"]) .canvas-box {
    background:
        linear-gradient(45deg, #2a2f37 25%, transparent 25%),
        linear-gradient(-45deg, #2a2f37 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #2a2f37 75%),
        linear-gradient(-45deg, transparent 75%, #2a2f37 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}
.preview-canvas, .result-canvas {
    display: block;
    max-width: 100%;
    height: auto;
}
.img-info {
    display: flex; flex-wrap: wrap; gap: 14px;
    font-size: 12px; color: var(--text-secondary);
    margin: 8px 0 4px;
}
.img-info b { color: var(--text-primary); font-weight: 600; }

/* 选项行（带标签的表单项） */
.field { margin: 12px 0; }
.field > label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.field-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.field-row .form-input { width: 120px; }
.inline-check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-primary); margin-left: 6px; }
.inline-check input { width: 15px; height: 15px; accent-color: var(--primary); }

/* 尺寸输入组（宽 × 高 + 锁定比例） */
.size-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.size-row .form-input { width: 120px; }
.size-row .x { color: var(--text-secondary); font-size: 14px; }
.lock-btn {
    width: 38px; height: 38px; border-radius: var(--radius-sm);
    border: 1px solid var(--border-color); background: var(--bg-body);
    color: var(--text-secondary); cursor: pointer; font-size: 16px;
    display: inline-flex; align-items: center; justify-content: center; transition: 0.15s;
}
.lock-btn.on { border-color: var(--primary); color: var(--primary); background: var(--tip-bg); }

/* 滑块行 */
.range-row { display: flex; align-items: center; gap: 12px; margin: 12px 0; flex-wrap: wrap; }
.range-row label { font-size: 13px; color: var(--text-secondary); min-width: 72px; }
.range-row input[type=range] { flex: 1; min-width: 160px; accent-color: var(--primary); }
.range-row .val { font-size: 13px; color: var(--text-primary); font-weight: 600; min-width: 48px; text-align: right; }

/* 颜色选择 */
.swatches { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.swatch {
    width: 30px; height: 30px; border-radius: 6px; cursor: pointer;
    border: 2px solid transparent; box-sizing: border-box;
}
.swatch.on { border-color: var(--primary); }
.color-input {
    width: 44px; height: 30px; padding: 0; border: 1px solid var(--border-color);
    border-radius: 6px; background: none; cursor: pointer;
}

/* 裁剪框 */
.crop-wrap {
    position: relative;
    display: inline-block;
    max-width: 100%;
    line-height: 0;
    touch-action: none;
    user-select: none;
}
.crop-canvas { display: block; max-width: 100%; height: auto; }
.crop-box {
    position: absolute;
    border: 1px solid var(--primary);
    background: rgba(255, 107, 0, 0.18);
    box-sizing: border-box;
    cursor: move;
}
.crop-box::before {
    content: ""; position: absolute; inset: 0;
    background:
        linear-gradient(var(--primary) 1px, transparent 1px) 0 33% / 100% 1px no-repeat,
        linear-gradient(var(--primary) 1px, transparent 1px) 0 66% / 100% 1px no-repeat,
        linear-gradient(90deg, var(--primary) 1px, transparent 1px) 33% 0 / 1px 100% no-repeat,
        linear-gradient(90deg, var(--primary) 1px, transparent 1px) 66% 0 / 1px 100% no-repeat;
    pointer-events: none;
}
.crop-handle {
    position: absolute; width: 12px; height: 12px;
    background: #fff; border: 2px solid var(--primary); border-radius: 2px;
    box-sizing: border-box;
}
.crop-handle.nw { left: -6px; top: -6px; cursor: nwse-resize; }
.crop-handle.ne { right: -6px; top: -6px; cursor: nesw-resize; }
.crop-handle.sw { left: -6px; bottom: -6px; cursor: nesw-resize; }
.crop-handle.se { right: -6px; bottom: -6px; cursor: nwse-resize; }

/* 缩略图列表（拼接） */
.thumb-list {
    display: flex; flex-wrap: wrap; gap: 12px; margin: 14px 0;
}
.thumb {
    position: relative; width: 110px; border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-body);
}
.thumb img { display: block; width: 100%; height: 90px; object-fit: contain; background: #fff; }
.thumb .tname {
    font-size: 11px; color: var(--text-secondary); padding: 4px 6px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.thumb .del {
    position: absolute; top: 4px; right: 4px; width: 22px; height: 22px;
    border-radius: 50%; border: none; background: rgba(0,0,0,0.55); color: #fff;
    cursor: pointer; font-size: 13px; line-height: 1;
}
.thumb .move {
    position: absolute; top: 4px; left: 4px; background: rgba(0,0,0,0.5); color: #fff;
    border: none; border-radius: 4px; font-size: 11px; padding: 2px 6px; cursor: pointer;
}

/* 进度条（OCR） */
.progress {
    height: 10px; background: var(--code-border); border-radius: 20px;
    overflow: hidden; margin: 14px 0 6px;
}
.progress-bar {
    height: 100%; width: 0%; background: var(--primary);
    border-radius: 20px; transition: width 0.2s;
}
.progress-text { font-size: 12px; color: var(--text-secondary); }

/* favicon 尺寸网格 */
.fav-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 12px; margin: 14px 0;
}
.fav-item {
    border: 1px solid var(--border-color); border-radius: var(--radius-sm);
    padding: 10px; text-align: center; background: var(--bg-body);
}
.fav-item canvas { background:
    linear-gradient(45deg, #e9edf2 25%, transparent 25%),
    linear-gradient(-45deg, #e9edf2 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e9edf2 75%),
    linear-gradient(-45deg, transparent 75%, #e9edf2 75%);
    background-size: 14px 14px; background-position: 0 0, 0 7px, 7px -7px, -7px 0;
    border-radius: 4px;
}
.fav-item .fs { font-size: 11px; color: var(--text-secondary); margin-top: 6px; }

/* 下载链接 */
.dl-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--primary); font-size: 13px; text-decoration: none; cursor: pointer;
}
.dl-link:hover { text-decoration: underline; }

.hidden { display: none !important; }
.full-width { width: 100%; }
.center { text-align: center; }

@media (max-width: 768px) {
    .io-grid { grid-template-columns: 1fr; }
}