/* ============================================================
   AI 项目开发笔记 /tools/aicode
   以「前端网页化」方式按项目管理 AI 应用开发过程
   适配桌面 / 平板 / 手机三端，支持站点深/浅色主题
   ============================================================ */
/* 占满整个电脑端屏幕：覆盖全站 .app / .main-content 的宽度限制 */
body.page-aicode-full .app { max-width: 100%; }
body.page-aicode-full .main-content { max-width: 100%; border-right: 0; }

.ac-page {
    max-width: 100%;
    margin: 0 auto;
    padding: 18px 16px 48px;
}

/* ---------------- 标题区 ---------------- */
.ac-hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 12px 0 22px;
}
.ac-hero-text { min-width: 0; }
.ac-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px;
    background: linear-gradient(90deg, var(--accent, #136ce9), #7c4dff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.ac-sub {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 820px;
    margin: 0;
}
.ac-hero-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.ac-stats {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 6px 14px;
    white-space: nowrap;
}

/* ---------------- 通用按钮 ---------------- */
.ac-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 14px;
    line-height: 1;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: background .15s, border-color .15s, color .15s, transform .1s;
    user-select: none;
    white-space: nowrap;
}
.ac-btn:hover { border-color: var(--accent); color: var(--accent); }
.ac-btn:active { transform: translateY(1px); }
.ac-btn:disabled { opacity: .5; cursor: not-allowed; }
.ac-btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.ac-btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.ac-btn-ghost { background: transparent; }
.ac-btn-ghost:hover { background: color-mix(in srgb, var(--accent) 8%, transparent); }
.ac-btn-danger {
    color: var(--danger);
    border-color: color-mix(in srgb, var(--danger) 40%, transparent);
    background: transparent;
}
.ac-btn-danger:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); border-color: var(--danger); }
.ac-btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 7px; }

.ac-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    font-size: 15px;
    cursor: pointer;
    transition: background .15s, color .15s;
    user-select: none;
}
.ac-icon-btn:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--accent); }
.ac-icon-btn.ac-danger:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); color: var(--danger); }

/* ---------------- 主工作区 ---------------- */
.ac-layout {
    display: grid;
    grid-template-columns: 288px 1fr;
    gap: 18px;
    align-items: start;
    min-height: calc(100vh - 220px);
}

/* ============ 左栏：项目列表 ============ */
.ac-sidebar {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 12px;
    position: sticky;
    top: 76px;
    max-height: calc(100vh - 96px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.ac-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2px 2px 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 10px;
}
.ac-sidebar-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}
.ac-project-list {
    overflow-y: auto;
    flex: 1;
    min-height: 0;
    scrollbar-width: thin;
}
.ac-project-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    margin-bottom: 6px;
    transition: background .15s, border-color .15s;
}
.ac-project-item:hover { background: var(--bg-secondary); }
.ac-project-item.active {
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
.ac-project-avatar {
    flex: none;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), #7c4dff);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ac-project-info { min-width: 0; flex: 1; }
.ac-project-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ac-project-meta {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ac-sidebar-foot {
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}

/* ============ 右栏：工作区 ============ */
.ac-main { min-width: 0; }

/* 移动 / 平板下的项目选择器（横向滑动） */
.ac-project-chips {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 2px 10px;
    margin-bottom: 10px;
    scrollbar-width: none;
}
.ac-project-chips::-webkit-scrollbar { display: none; }
.ac-chip {
    flex: none;
    font-size: 13px;
    padding: 8px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    white-space: nowrap;
    transition: border-color .15s, background .15s;
}
.ac-chip:hover { border-color: var(--accent); }
.ac-chip.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* 工具栏 + Tab */
.ac-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px 12px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.ac-tabs {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
    flex: 1;
    min-width: 0;
}
.ac-tabs::-webkit-scrollbar { display: none; }
.ac-tab {
    flex: none;
    font-size: 14px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background .15s, color .15s;
    white-space: nowrap;
}
.ac-tab:hover { background: var(--bg-secondary); color: var(--text-primary); }
.ac-tab.active {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    font-weight: 600;
}
.ac-toolbar-right { display: flex; align-items: center; gap: 2px; flex: none; }

/* ---------------- 内容区 ---------------- */
.ac-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 18px;
    min-height: 420px;
}
.ac-pane { display: none; }
.ac-pane.active { display: block; }

.ac-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 14px;
}
.ac-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}
.ac-field-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}
.ac-field-label em { color: var(--danger); font-style: normal; }
.ac-input {
    width: 100%;
    box-sizing: border-box;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 9px 12px;
    margin-bottom: 12px;
    resize: vertical;
    transition: border-color .15s, box-shadow .15s;
}
.ac-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}
textarea.ac-input { min-height: 72px; }
.ac-input-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: -6px;
    margin-bottom: 12px;
}

.ac-empty {
    text-align: center;
    color: var(--text-secondary);
    padding: 44px 16px;
    font-size: 14px;
    line-height: 1.8;
}
.ac-empty .ac-empty-icon { font-size: 34px; display: block; margin-bottom: 10px; }
.ac-empty .ac-empty-action { margin-top: 14px; }

/* ---------------- 概览 ---------------- */
.ac-overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.ac-stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}
.ac-stat-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
}
.ac-stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
.ac-overview-desc {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-wrap;
    margin: 0;
}
.ac-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.ac-tag {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
    color: var(--accent);
    white-space: nowrap;
}

/* ---------------- 笔记 ---------------- */
.ac-notes-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 14px;
    align-items: start;
}
.ac-notes-side { min-width: 0; }
.ac-notes-list {
    max-height: 560px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 2px;
    scrollbar-width: thin;
}
.ac-note-item {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    cursor: pointer;
    background: var(--bg-primary);
    transition: border-color .15s, background .15s;
}
.ac-note-item:hover { border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.ac-note-item.active {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 7%, transparent);
}
.ac-note-item-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 6px;
}
.ac-note-item-pin { color: #f5a623; font-size: 12px; flex: none; }
.ac-note-item-excerpt {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ac-note-item-meta {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 6px;
    opacity: .85;
}
.ac-note-editor { min-width: 0; }
.ac-note-title-input {
    width: 100%;
    box-sizing: border-box;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 6px 2px 10px;
    margin-bottom: 12px;
}
.ac-note-title-input:focus { outline: none; border-color: var(--accent); }
.ac-note-textarea {
    width: 100%;
    box-sizing: border-box;
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    min-height: 260px;
    resize: vertical;
    font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
}
.ac-note-textarea:focus { outline: none; border-color: var(--accent); }
.ac-note-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}
.ac-note-editor-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-left: auto;
}

/* Markdown 预览 */
.ac-md { line-height: 1.8; font-size: 14px; color: var(--text-primary); word-break: break-word; }
.ac-md h1, .ac-md h2, .ac-md h3 { margin: 14px 0 8px; line-height: 1.4; }
.ac-md h1 { font-size: 20px; } .ac-md h2 { font-size: 17px; } .ac-md h3 { font-size: 15px; }
.ac-md p { margin: 8px 0; }
.ac-md ul, .ac-md ol { margin: 8px 0; padding-left: 22px; }
.ac-md li { margin: 4px 0; }
.ac-md code {
    background: color-mix(in srgb, var(--text-primary) 8%, transparent);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 13px;
    font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
}
.ac-md pre {
    background: color-mix(in srgb, var(--text-primary) 6%, transparent);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    overflow-x: auto;
}
.ac-md pre code { background: transparent; padding: 0; }
.ac-md blockquote {
    margin: 8px 0;
    padding: 4px 14px;
    border-left: 3px solid var(--accent);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-radius: 0 6px 6px 0;
}
.ac-md a { color: var(--accent); }
.ac-md hr { border: none; border-top: 1px solid var(--border-color); margin: 14px 0; }
.ac-md table { border-collapse: collapse; margin: 10px 0; width: 100%; }
.ac-md th, .ac-md td { border: 1px solid var(--border-color); padding: 6px 10px; font-size: 13px; }
.ac-md th { background: var(--bg-secondary); }

/* ---------------- 任务 ---------------- */
.ac-todo-filter {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.ac-todo-filter button {
    font-size: 12px;
    padding: 5px 12px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all .15s;
}
.ac-todo-filter button.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.ac-todo-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.ac-todo-input-row .ac-input { flex: 1; margin-bottom: 0; min-width: 180px; }
.ac-todo-select {
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 9px 10px;
    cursor: pointer;
}
.ac-todo-list { display: flex; flex-direction: column; gap: 8px; }
.ac-todo-item {
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 11px 14px;
    background: var(--bg-primary);
    transition: border-color .15s;
}
.ac-todo-item:hover { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.ac-todo-check {
    flex: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: transparent;
    transition: all .15s;
    background: transparent;
    padding: 0;
}
.ac-todo-check:hover { border-color: var(--accent); }
.ac-todo-item.done .ac-todo-check {
    background: var(--success, #00ba7c);
    border-color: var(--success, #00ba7c);
    color: #fff;
}
.ac-todo-text {
    flex: 1;
    min-width: 0;
    font-size: 14px;
    color: var(--text-primary);
    word-break: break-word;
    cursor: pointer;
}
.ac-todo-item.done .ac-todo-text { text-decoration: line-through; color: var(--text-secondary); }
.ac-todo-priority {
    flex: none;
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 14px;
    white-space: nowrap;
}
.ac-todo-priority.high { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent); }
.ac-todo-priority.med { background: color-mix(in srgb, #f5a623 12%, transparent); color: #c07d00; border: 1px solid color-mix(in srgb, #f5a623 35%, transparent); }
.ac-todo-priority.low { background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent); }
.ac-todo-due {
    flex: none;
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
}
.ac-todo-del {
    flex: none;
    font-size: 14px;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
}
.ac-todo-del:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, transparent); }

/* ---------------- 提示词库 ---------------- */
.ac-prompt-cats {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 2px 12px;
    scrollbar-width: none;
}
.ac-prompt-cats::-webkit-scrollbar { display: none; }
.ac-prompt-cat {
    flex: none;
    font-size: 13px;
    padding: 7px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: all .15s;
}
.ac-prompt-cat:hover { border-color: var(--accent); color: var(--accent); }
.ac-prompt-cat.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.ac-prompt-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 4px;
}
.ac-prompt-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: border-color .15s;
}
.ac-prompt-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.ac-prompt-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.ac-prompt-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.ac-prompt-cat-badge {
    flex: none;
    font-size: 11px;
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
    padding: 2px 10px;
    border-radius: 14px;
    white-space: nowrap;
}
.ac-prompt-content {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 132px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
}
.ac-prompt-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.ac-prompt-note {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* ---------------- 弹窗 ---------------- */
.ac-modal[hidden] { display: none; }
.ac-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.ac-modal-mask {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    backdrop-filter: blur(2px);
}
.ac-modal-box {
    position: relative;
    width: 100%;
    max-width: 460px;
    max-height: 88vh;
    overflow-y: auto;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, .22);
    animation: ac-modal-in .18s ease-out;
}
@keyframes ac-modal-in {
    from { transform: translateY(14px) scale(.98); opacity: 0; }
    to { transform: none; opacity: 1; }
}
.ac-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
}
.ac-modal-title { font-size: 15px; font-weight: 600; color: var(--text-primary); }
.ac-modal-body { padding: 16px 18px 6px; }
.ac-modal-foot {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 12px 18px 16px;
}
.ac-modal-tip {
    font-size: 12px;
    color: var(--text-secondary);
    margin: -6px 0 4px;
    line-height: 1.6;
}

/* ---------------- 响应式：平板 / 手机 ---------------- */
@media (max-width: 991px) {
    .ac-layout { grid-template-columns: 1fr; }
    .ac-sidebar { display: none; }
    .ac-project-chips[hidden] { display: none; }
    .ac-project-chips { display: flex; }
    .ac-notes-layout { grid-template-columns: 1fr; }
    .ac-notes-list { max-height: 280px; }
    .ac-prompt-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .ac-page { padding: 12px 10px 32px; }
    .ac-hero { padding: 8px 0 16px; }
    .ac-title { font-size: 22px; }
    .ac-sub { font-size: 13px; }
    .ac-hero-actions { width: 100%; }
    .ac-stats { width: 100%; text-align: center; }
    .ac-content { padding: 14px 12px; min-height: 360px; }
    .ac-toolbar { padding: 8px; gap: 8px; }
    .ac-tab { padding: 8px 14px; font-size: 13px; }
    .ac-overview-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .ac-prompt-grid { grid-template-columns: 1fr; }
    .ac-todo-input-row .ac-input { min-width: 100%; margin-bottom: 8px; }
    .ac-todo-input-row { flex-direction: column; align-items: stretch; }
    .ac-todo-select { width: 100%; }
    .ac-todo-input-row .ac-btn { width: 100%; }
    .ac-note-actions .ac-note-editor-hint { display: none; }
    .ac-btn { padding: 10px 16px; }
    .ac-icon-btn { width: 36px; height: 36px; }
}