/* 题目分享弹窗（static/js/question-share.js）：链接 + 分享图预览 + 保存 / 复制 / 系统分享。
   桌面居中，手机是底部抽屉；三套主题共用，深色主题另配色。 */
.qs-overlay {
    --qs-card: #fff;
    --qs-ink: #292a2e;
    --qs-text: #484745;
    --qs-muted: #868681;
    --qs-line: #e6e5e1;
    --qs-soft: #f6f5f1;
    --qs-accent: var(--warm-accent, #e5484d);
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgb(28 27 24 / 45%);
}
.qs-overlay[hidden], .qs-overlay [hidden] { display: none !important; }
body.qs-open { overflow: hidden; }

body.theme-dark .qs-overlay {
    --qs-card: #232327;
    --qs-ink: #ecebe6;
    --qs-text: #d5d3cc;
    --qs-muted: #9a9890;
    --qs-line: #36363a;
    --qs-soft: #2d2d31;
    background: rgb(0 0 0 / 55%);
}

.qs-dialog {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: min(100%, 560px);
    max-height: calc(100dvh - 40px);
    overflow: auto;
    padding: 20px 22px 18px;
    border-radius: 14px;
    background: var(--qs-card);
    color: var(--qs-ink);
    box-shadow: 0 24px 60px rgb(0 0 0 / 24%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.qs-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.qs-head h2 { margin: 0; font-size: 18px; font-weight: 700; }
.qs-qid { margin: 2px 0 0; font: 600 13px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: var(--qs-muted); }
.qs-close {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--qs-muted);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}
.qs-close:hover { background: var(--qs-soft); }
.qs-note { margin: 0; font-size: 13.5px; line-height: 1.6; color: var(--qs-text); }

.qs-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    padding: 10px;
    border: 1px solid var(--qs-line);
    border-radius: 10px;
    background: var(--qs-soft);
}
.qs-preview img {
    display: block;
    max-width: 100%;
    max-height: min(46vh, 420px);
    object-fit: contain;
    border-radius: 4px;
    background: #fff;
    box-shadow: 0 2px 10px rgb(0 0 0 / 8%);
    -webkit-touch-callout: default;
}
.qs-status { margin: 0; font-size: 13.5px; color: var(--qs-muted); text-align: center; }
.qs-status.is-busy::before {
    content: "";
    display: inline-block;
    width: 13px;
    height: 13px;
    margin-right: 8px;
    vertical-align: -2px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: qs-spin .8s linear infinite;
}
@keyframes qs-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .qs-status.is-busy::before { animation: none; } }

.qs-link { display: flex; gap: 8px; }
.qs-link input {
    flex: 1;
    min-width: 0;
    height: 42px;
    padding: 0 12px;
    border: 1px solid var(--qs-line);
    border-radius: 8px;
    background: var(--qs-card);
    color: var(--qs-ink);
    font: 500 14px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.qs-link input:focus { outline: 2px solid var(--qs-accent); outline-offset: -1px; }

.qs-primary, .qs-actions button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
}
.qs-primary { border: 1px solid var(--qs-accent); background: var(--qs-accent); color: #fff; }
.qs-primary:hover { filter: brightness(1.06); }
.qs-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.qs-actions button { flex: 1 1 0; border: 1px solid var(--qs-line); background: var(--qs-card); color: var(--qs-text); }
.qs-actions button:hover { background: var(--qs-soft); }
.qs-hint { margin: 0; font-size: 12.5px; color: var(--qs-muted); text-align: center; }

.qs-icon {
    display: inline-block;
    flex-shrink: 0;
    width: 17px;
    height: 17px;
    background: currentColor;
    -webkit-mask: var(--qs-icon) center/contain no-repeat;
    mask: var(--qs-icon) center/contain no-repeat;
}
.qs-icon-link { --qs-icon: url('/static/assets/ui/lucide/link.svg'); }
.qs-icon-download { --qs-icon: url('/static/assets/ui/lucide/download.svg'); }
.qs-icon-copy { --qs-icon: url('/static/assets/ui/lucide/copy.svg'); }
.qs-icon-share { --qs-icon: url('/static/assets/ui/lucide/share-2.svg'); }

@media (max-width: 767px) {
    .qs-overlay { align-items: flex-end; padding: 0; }
    .qs-dialog {
        width: 100%;
        max-height: 92dvh;
        padding: 16px 16px max(16px, env(safe-area-inset-bottom));
        border-radius: 18px 18px 0 0;
    }
    .qs-preview img { max-height: 42vh; }
}

/* 题卡上的「分享」：经典布局里是一颗小按钮；暖纸书房里由 warm-paper.js 换成图标 + 短标签 */
.question-share-btn { display: inline-flex; align-items: center; gap: 4px; border-radius: 0.5rem; }

/* 手机题图工具栏：多了「分享」，七个动作仍排一行（375px 宽的卡片） */
@media (max-width: 767px) {
    .mobile-question-toolbar { grid-template-columns: repeat(7, 41px); gap: 4px; padding: 6px; }
    .mobile-question-toolbar button { width: 41px; }
    .mobile-question-toolbar button span.mobile-toolbar-share-icon {
        width: 18px;
        height: 18px;
        background: currentColor;
        -webkit-mask: url('/static/assets/ui/lucide/share-2.svg') center/contain no-repeat;
        mask: url('/static/assets/ui/lucide/share-2.svg') center/contain no-repeat;
    }
}

/* 小程序里先不放「分享」：小程序有自己的转发，网页链接打开的是网站；工具栏仍按小程序的四格排 */
html.cie-mp [data-question-share] { display: none !important; }