/* ============================================================
   图片水印工具 - 样式
   迪妙网络空间安全学院 · 纯前端本地运行
   ============================================================ */

:root {
    --wm-blue: #1a6eff;
    --wm-orange: #ff6b35;
    --wm-green: #16a34a;
    --wm-purple: #7c3aed;
    --wm-border: #e8ecf4;
    --wm-text: #1a1a2e;
    --wm-text2: #5a5a7a;
    --wm-text3: #8a8aa0;
    --wm-bg: #f8fafc;
}

.wm-main { padding: 0 0 80px; }

/* ===== 特性标签 ===== */
.feat-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}
.feat-chips .chip {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--wm-text2);
    background: white;
    border: 1px solid var(--wm-border);
    padding: 6px 14px;
    border-radius: 100px;
}

/* ===== 本地运行提示条 ===== */
.wm-note {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: linear-gradient(135deg, #e8f1ff 0%, #f0f5ff 100%);
    border: 1.5px solid rgba(26, 110, 255, 0.15);
    border-radius: 14px;
    padding: 18px 22px;
    margin-bottom: 24px;
}
.wm-note-icon {
    width: 38px; height: 38px;
    background: var(--wm-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.wm-note-icon svg { width: 20px; height: 20px; color: white; }
.wm-note strong { font-size: 14.5px; color: var(--wm-text); display: block; margin-bottom: 2px; }
.wm-note p { font-size: 13px; color: var(--wm-text2); line-height: 1.7; margin: 0; }

/* ===== 工具栏 ===== */
.wm-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.wm-toolbar-left { display: flex; gap: 10px; flex-wrap: wrap; }
.wm-toolbar-right { display: flex; gap: 8px; }
.wm-pill {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--wm-text2);
    background: white;
    border: 1.5px solid var(--wm-border);
    padding: 6px 14px;
    border-radius: 100px;
}
.wm-pill.blue { color: var(--wm-blue); border-color: rgba(26,110,255,0.25); background: #e8f1ff; }

/* ===== 按钮 ===== */
.wm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: all 0.25s ease;
    text-decoration: none;
}
.wm-btn.primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(26, 110, 255, 0.3);
}
.wm-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(26, 110, 255, 0.4); }
.wm-btn.ghost {
    background: white;
    color: var(--wm-text);
    border-color: var(--wm-border);
}
.wm-btn.ghost:hover { border-color: var(--wm-blue); color: var(--wm-blue); transform: translateY(-2px); }
.wm-btn.block { width: 100%; margin-top: 14px; }
.wm-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.wm-mini-btn {
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 8px;
    border: 1.5px solid var(--wm-border);
    background: white;
    color: var(--wm-text2);
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.wm-mini-btn:hover { border-color: var(--wm-blue); color: var(--wm-blue); }
.wm-mini-btn.danger:hover { border-color: #dc2626; color: #dc2626; background: #fef2f2; }

/* ===== 布局 ===== */
.wm-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 20px;
    align-items: start;
}
.wm-preview-col, .wm-control-col { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

/* ===== 卡片 ===== */
.wm-card {
    background: white;
    border: 1px solid var(--wm-border);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(26, 110, 255, 0.05);
    overflow: hidden;
}
.wm-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--wm-border);
    background: var(--wm-bg);
}
.wm-card-head strong { font-size: 15px; font-weight: 700; color: var(--wm-text); }
.wm-head-hint { font-size: 12px; color: var(--wm-text3); }

/* ===== 预览画布 ===== */
.wm-canvas-wrap {
    padding: 16px;
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        conic-gradient(#eef1f6 0 25%, #ffffff 0 50%, #eef1f6 0 75%, #ffffff 0) 0 0 / 22px 22px;
}
#previewCanvas {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
    cursor: default;
    touch-action: none;
}
.wm-canvas-meta {
    padding: 10px 20px;
    font-size: 12.5px;
    color: var(--wm-text3);
    border-top: 1px solid var(--wm-border);
}

/* ===== 选项卡 ===== */
.wm-tabs {
    display: flex;
    gap: 4px;
    padding: 10px 12px 0;
    border-bottom: 1px solid var(--wm-border);
    overflow-x: auto;
    scrollbar-width: none;
}
.wm-tabs::-webkit-scrollbar { display: none; }
.tab-btn {
    flex: 1;
    min-width: 90px;
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--wm-text2);
    background: transparent;
    border: none;
    padding: 10px 12px;
    cursor: pointer;
    border-bottom: 2.5px solid transparent;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.tab-btn:hover { color: var(--wm-blue); }
.tab-btn.active { color: var(--wm-blue); border-bottom-color: var(--wm-blue); }

.wm-panel { padding: 16px 20px 20px; }
.wm-panel.hidden { display: none; }

.edit-status {
    font-size: 12px;
    font-weight: 600;
    color: var(--wm-blue);
    background: #e8f1ff;
    border: 1px solid rgba(26,110,255,0.18);
    border-radius: 8px;
    padding: 6px 12px;
    margin-bottom: 14px;
}

/* ===== 控件 ===== */
.ctl { display: block; margin-bottom: 12px; }
.ctl > span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--wm-text2);
    margin-bottom: 5px;
}
.ctl > span em { font-style: normal; font-weight: 400; font-size: 11px; color: var(--wm-text3); }
.ctl .val { color: var(--wm-blue); font-weight: 700; font-size: 12.5px; }
.ctl input[type="text"],
.ctl textarea,
.ctl select {
    width: 100%;
    font-family: inherit;
    font-size: 13.5px;
    color: var(--wm-text);
    background: var(--wm-bg);
    border: 1.5px solid var(--wm-border);
    border-radius: 9px;
    padding: 9px 12px;
    outline: none;
    transition: border-color 0.25s ease;
    resize: vertical;
}
.ctl input[type="text"]:focus,
.ctl textarea:focus,
.ctl select:focus { border-color: var(--wm-blue); background: white; }

input[type="range"] {
    width: 100%;
    height: 22px;
    accent-color: var(--wm-blue);
    cursor: pointer;
    background: transparent;
}

.color-in {
    width: 52px;
    height: 32px;
    padding: 2px;
    border: 1.5px solid var(--wm-border);
    border-radius: 8px;
    background: white;
    cursor: pointer;
}

.ctl-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}
.ctl-row > span { font-size: 12.5px; font-weight: 600; color: var(--wm-text2); flex-shrink: 0; }
.ctl-grid2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.tog-group { display: flex; gap: 8px; }
.tog {
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--wm-text2);
    background: white;
    border: 1.5px solid var(--wm-border);
    border-radius: 8px;
    padding: 7px 14px;
    cursor: pointer;
    transition: all 0.25s ease;
}
.tog:hover { border-color: var(--wm-blue); color: var(--wm-blue); }
.tog.on {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
    box-shadow: 0 3px 10px rgba(26,110,255,0.3);
}

/* ===== 九宫格位置 ===== */
.pos-grid {
    display: grid;
    grid-template-columns: repeat(3, 26px);
    grid-template-rows: repeat(3, 26px);
    gap: 4px;
}
.pos-btn {
    border: 1.5px solid var(--wm-border);
    background: var(--wm-bg);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}
.pos-btn:hover { border-color: var(--wm-blue); background: #e8f1ff; }
.pos-btn.active {
    background: var(--primary-gradient);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(26,110,255,0.35);
}

/* ===== 开关 ===== */
.wm-switch {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--wm-text2);
    cursor: pointer;
    margin-bottom: 12px;
    user-select: none;
}
.wm-switch input { display: none; }
.wm-switch span {
    position: relative;
    width: 40px; height: 22px;
    background: #d7dce6;
    border-radius: 100px;
    transition: background 0.25s ease;
    flex-shrink: 0;
}
.wm-switch span::after {
    content: '';
    position: absolute;
    top: 3px; left: 3px;
    width: 16px; height: 16px;
    background: white;
    border-radius: 50%;
    transition: transform 0.25s ease;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.wm-switch input:checked + span { background: var(--wm-blue); }
.wm-switch input:checked + span::after { transform: translateX(18px); }

/* ===== Logo 上传区 ===== */
.logo-drop { margin-bottom: 12px; }
.logo-thumb-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 10px;
    min-height: 20px;
}
.logo-thumb-row img {
    max-width: 88px;
    max-height: 52px;
    border: 1px solid var(--wm-border);
    border-radius: 8px;
    background:
        conic-gradient(#eef1f6 0 25%, #ffffff 0 50%, #eef1f6 0 75%, #ffffff 0) 0 0 / 12px 12px;
    padding: 4px;
}
.logo-thumb-row span { font-size: 12px; color: var(--wm-text3); }

/* ===== 图层列表 ===== */
.active-tag {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--wm-text3);
    padding: 12px 20px 0;
}
.wm-layer-list { padding: 10px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.wm-layer-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border: 1.5px solid var(--wm-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    background: white;
}
.wm-layer-item:hover { border-color: rgba(26,110,255,0.35); }
.wm-layer-item.active { border-color: var(--wm-blue); background: #f4f8ff; box-shadow: 0 2px 10px rgba(26,110,255,0.12); }
.wm-layer-item.off { opacity: 0.5; }
.layer-badge {
    font-size: 10.5px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 6px;
    flex-shrink: 0;
    white-space: nowrap;
}
.layer-badge.t-text { background: #e8f1ff; color: var(--wm-blue); }
.layer-badge.t-logo { background: #fff3ed; color: var(--wm-orange); }
.layer-badge.t-shape { background: #f0fdf4; color: var(--wm-green); }
.layer-name {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--wm-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.layer-ops { display: flex; gap: 2px; flex-shrink: 0; }
.icon-btn {
    width: 28px; height: 28px;
    border: none;
    background: transparent;
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--wm-text3);
    transition: all 0.2s ease;
    padding: 0;
}
.icon-btn:hover { background: var(--wm-bg); color: var(--wm-blue); }
.icon-btn.del:hover { background: #fef2f2; color: #dc2626; }
.icon-btn svg { width: 15px; height: 15px; }
.wm-layer-empty {
    text-align: center;
    font-size: 12.5px;
    color: var(--wm-text3);
    padding: 14px 0 6px;
}

/* ===== 批量队列 ===== */
.wm-batch-list { padding: 12px 14px; display: flex; flex-direction: column; gap: 8px; max-height: 320px; overflow-y: auto; }
.wm-batch-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border: 1.5px solid var(--wm-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    background: white;
}
.wm-batch-item:hover { border-color: rgba(26,110,255,0.35); }
.wm-batch-item.current { border-color: var(--wm-blue); background: #f4f8ff; }
.batch-thumb {
    width: 56px; height: 40px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--wm-border);
    flex-shrink: 0;
    background: var(--wm-bg);
}
.batch-info { flex: 1; min-width: 0; }
.batch-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--wm-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.batch-size { font-size: 11.5px; color: var(--wm-text3); }
.wm-batch-empty {
    text-align: center;
    font-size: 12.5px;
    color: var(--wm-text3);
    padding: 16px 0;
}
.wm-batch-foot {
    padding: 10px 20px 14px;
    font-size: 12px;
    color: var(--wm-text3);
    line-height: 1.7;
    border-top: 1px solid var(--wm-border);
}

/* ===== 导出区 ===== */
.wm-card > .ctl-grid2, .wm-card > .ctl, .wm-export-btns { margin-left: 20px; margin-right: 20px; }
.wm-card > .ctl-grid2 { margin-top: 14px; }
.wm-card > .ctl { margin-top: 10px; }
.wm-export-btns { margin-top: 4px; margin-bottom: 20px; display: flex; flex-direction: column; gap: 0; }
.wm-export-btns .wm-btn.block { margin-top: 8px; }

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
    .wm-layout { grid-template-columns: 1fr; }
    .wm-control-col { order: 2; }
    .wm-preview-col { order: 1; }
}
@media (max-width: 768px) {
    .wm-main { padding: 0 0 56px; }
    .wm-toolbar { flex-direction: column; align-items: stretch; }
    .wm-toolbar-left { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .wm-toolbar-left .wm-btn { padding: 11px 10px; font-size: 13px; }
    .wm-toolbar-right { justify-content: flex-end; }
    .wm-canvas-wrap { padding: 10px; min-height: 200px; }
    .ctl-grid2 { grid-template-columns: 1fr; gap: 0; }
    .pos-grid { grid-template-columns: repeat(3, 30px); grid-template-rows: repeat(3, 30px); }
    .feat-chips .chip { font-size: 11.5px; padding: 5px 10px; }
    .wm-head-hint { display: none; }
    .batch-thumb { width: 48px; height: 34px; }
}