/* 基础重置、标题栏与标签页、通用按钮与滚动条 */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
}

/* Material Symbols 图标：与桌面版同一套字面与字号档位 */
.ms-icon {
    font-family: 'Material Symbols Rounded';
    font-weight: normal;
    font-style: normal;
    font-size: 18px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
    font-feature-settings: 'liga';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}
.ms-icon.fill {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}
.ms-icon.xs { font-size: 14px; }
.ms-icon.sm { font-size: 16px; }

button {
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    color: inherit;
    border: none;
    outline: none;
    background: transparent;
}

/* 正文与输入框允许选中：网页版不做桌面版那种整窗禁选 */
.editor-textarea,
.editor-title-input,
.markdown-body,
.search-box input,
.settings-path,
.secret-value {
    user-select: text;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-muted);
}

.app-container {
    display: flex;
    flex-direction: column;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.app-body {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.hidden { display: none !important; }
[hidden] { display: none !important; }

/* Titlebar */
.titlebar {
    height: 40px;
    flex-shrink: 0;
    background-color: var(--bg-titlebar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px 0 14px;
    position: relative;
    z-index: 100;
}

.titlebar-brand {
    font-family: 'Mohave', var(--font-sans);
    font-size: 16px;
    font-weight: 600;
    color: var(--brand-fg);
    letter-spacing: 0.4px;
    flex-shrink: 0;
    padding: 4px 6px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.15s, opacity 0.15s;
}
.titlebar-brand:hover {
    background-color: var(--item-hover);
}
.titlebar-brand:active {
    opacity: 0.7;
}

.titlebar-divider {
    width: 1px;
    height: 16px;
    background: var(--border-color);
    flex-shrink: 0;
}

.titlebar-title {
    font-size: 12.5px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 0;
}

.titlebar-tabs {
    display: flex;
    align-items: center;
    height: 100%;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    gap: 6px;
    padding: 0 8px;
}
.titlebar-tabs::-webkit-scrollbar {
    display: none;
}

/* 悬浮式标签页 */
.tab-item {
    height: 28px;
    min-width: 110px;
    max-width: 190px;
    padding: 0 8px 0 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.15s var(--ease-standard),
                border-color 0.15s var(--ease-standard),
                color 0.15s var(--ease-standard);
    position: relative;
    white-space: nowrap;
}
.tab-item:hover {
    background-color: var(--item-hover);
    color: var(--text-primary);
}
.tab-item.active {
    background-color: var(--bg-elevated);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-weight: 500;
}
/* 拖动排序中的标签：抬起来一层（底色 + 阴影），跟着指针左右移动（见 scripts/render.js 的标签栏拖动排序）。
   过渡全部关掉，否则跟手时会有迟滞；换位时其余标签让位由布局自身完成，不需要动画 */
.tab-item.is-dragging {
    z-index: 5;
    background-color: var(--bg-elevated);
    border-color: var(--border-color);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
    transition: none;
}
/* 拖动期间整条标签栏都是抓手光标：指针掠过别的标签时不该又变回小手 */
.tab-item.is-dragging,
.titlebar-tabs.is-dragging .tab-item,
.workspace-tabs.is-dragging .tab-item {
    cursor: grabbing;
}
.tab-item .tab-title {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tab-item .tab-icon {
    flex-shrink: 0;
    opacity: 0.75;
}
.tab-close-btn {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-sm);
    opacity: 0.6;
    transition: opacity 0.15s, background-color 0.15s, color 0.15s;
}
.tab-close-btn:hover {
    opacity: 1;
    background-color: var(--danger-bg);
    color: var(--danger);
}

.titlebar-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 100%;
    flex-shrink: 0;
}

.btn-new-note {
    display: flex;
    align-items: center;
    gap: 4px;
    height: 26px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    background-color: var(--accent);
    color: var(--accent-fg);
    font-size: 12px;
    font-weight: 500;
    transition: opacity 0.15s, transform 0.1s;
}
.btn-new-note:hover {
    opacity: 0.9;
}
.btn-new-note:active {
    transform: scale(0.98);
}

.btn-action-icon {
    width: 26px;
    height: 26px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: background-color 0.15s, color 0.15s, transform 0.1s;
}
.btn-action-icon:hover {
    background-color: var(--item-hover);
    color: var(--text-primary);
}
.btn-action-icon:active {
    transform: scale(0.94);
}
.btn-action-icon:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.btn-action-icon:disabled:hover {
    background-color: transparent;
    color: var(--text-secondary);
}

/* 动效偏好：系统开启「减少动态效果」时去掉入场动画与按压缩放 */
@media (prefers-reduced-motion: reduce) {
    .toast-item,
    .dropdown-menu,
    .context-menu,
    .dialog-box {
        animation: none !important;
    }
    .btn-action-icon:active,
    .btn-new-note:active,
    .btn-sidebar-new:active,
    .fmt-btn:active {
        transform: none !important;
    }
}