/* ===== 色彩 Token ===== */
:root {
  --bg: #ffffff;
  --sidebar: #ececee;
  --toolbar: #f6f6f7;
  --border: #dcdcdf;
  --text: #1d1d1f;
  --muted: #86868b;
  --accent: #0a6cff;
  --accent-text: #ffffff;
  --sel-soft: rgba(0, 0, 0, 0.09);
  --sel-thumb: rgba(0, 0, 0, 0.08);
  --hover: rgba(0, 0, 0, 0.05);
  --stripe: #f5f5f7;
  --seg-bg: rgba(0, 0, 0, 0.06);
  --seg-active: #ffffff;
  --input-bg: rgba(0, 0, 0, 0.055);
  --folder-back: #5aa9ec;
  --folder-front: #84c3f6;
  --file-bg: #ffffff;
  --file-stroke: #c7c7cc;
  --file-fold: #e9e9ee;
  --file-label: #8e8e93;
  --shadow-img: 0 1px 3px rgba(0, 0, 0, 0.2);
  --icon-size: 112px;
  --logo-tile: #f7f7f8;
  --logo-border: #b4b4ba;
  --logo-glyph: #1c1c1e;
  color-scheme: light;
}

/* 深色：跟隨系統（未手動指定淺色時）或手動指定深色 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1e1e1f;
    --sidebar: #28282a;
    --toolbar: #2b2b2d;
    --border: #3a3a3d;
    --text: #f2f2f4;
    --muted: #98989d;
    --accent: #0a6cff;
    --sel-soft: rgba(255, 255, 255, 0.1);
    --sel-thumb: rgba(255, 255, 255, 0.1);
    --hover: rgba(255, 255, 255, 0.06);
    --stripe: #252527;
    --seg-bg: rgba(255, 255, 255, 0.08);
    --seg-active: #5a5a5e;
    --input-bg: rgba(255, 255, 255, 0.08);
    --folder-back: #3f8fd6;
    --folder-front: #66aeea;
    --file-bg: #3a3a3c;
    --file-stroke: #55555a;
    --file-fold: #4a4a4e;
    --file-label: #a1a1a6;
    --shadow-img: 0 1px 4px rgba(0, 0, 0, 0.5);
    --logo-tile: #1c1c1e;
    --logo-border: #48484c;
    --logo-glyph: #ffffff;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #1e1e1f;
  --sidebar: #28282a;
  --toolbar: #2b2b2d;
  --border: #3a3a3d;
  --text: #f2f2f4;
  --muted: #98989d;
  --accent: #0a6cff;
  --sel-soft: rgba(255, 255, 255, 0.1);
  --sel-thumb: rgba(255, 255, 255, 0.1);
  --hover: rgba(255, 255, 255, 0.06);
  --stripe: #252527;
  --seg-bg: rgba(255, 255, 255, 0.08);
  --seg-active: #5a5a5e;
  --input-bg: rgba(255, 255, 255, 0.08);
  --folder-back: #3f8fd6;
  --folder-front: #66aeea;
  --file-bg: #3a3a3c;
  --file-stroke: #55555a;
  --file-fold: #4a4a4e;
  --file-label: #a1a1a6;
  --shadow-img: 0 1px 4px rgba(0, 0, 0, 0.5);
  --logo-tile: #1c1c1e;
  --logo-border: #48484c;
  --logo-glyph: #ffffff;
  color-scheme: dark;
}

/* ===== 基礎 ===== */
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 13px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang TC", "Noto Sans TC", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
button { font: inherit; color: inherit; }
svg { display: block; }
kbd {
  font: 11px ui-monospace, SFMono-Regular, Menlo, monospace;
  padding: 1px 5px; border-radius: 4px;
  border: 1px solid var(--border); background: var(--toolbar);
}

.app {
  display: grid;
  grid-template-columns: 236px 1fr;
  height: 100vh;
  height: 100dvh;
}

/* ===== 側邊欄 ===== */
.sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  min-height: 0; padding: 14px 10px 10px; gap: 16px;
}
.open-form { display: flex; gap: 6px; }
.open-form input {
  flex: 1; min-width: 0; height: 28px; padding: 0 9px;
  border: 1px solid transparent; border-radius: 7px;
  background: var(--input-bg); color: var(--text); font: inherit; outline: none;
}
.open-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(10, 108, 255, 0.2); }
.open-form button {
  height: 28px; padding: 0 10px; border: 0; border-radius: 7px;
  background: var(--accent); color: #fff; cursor: pointer; font-weight: 500;
}
.side-section { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.side-title { font-size: 11px; font-weight: 600; color: var(--muted); padding: 0 8px 4px; }
.repo-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; }
.repo-item {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 8px; border-radius: 6px; cursor: default;
}
.repo-item:hover { background: var(--hover); }
.repo-item.active { background: var(--sel-soft); }
.ri-icon { width: 16px; height: 16px; flex: none; color: var(--accent); }
.ri-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.ri-name, .ri-owner { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ri-owner { font-size: 11px; color: var(--muted); }
.ri-remove {
  border: 0; background: none; width: 18px; height: 18px; border-radius: 50%;
  color: var(--muted); cursor: pointer; opacity: 0; flex: none; line-height: 1;
}
.repo-item:hover .ri-remove { opacity: 1; }
.ri-remove:hover { background: var(--hover); color: var(--text); }
.repo-empty { color: var(--muted); padding: 4px 8px; font-size: 12px; }
.side-footer { display: flex; flex-direction: column; gap: 2px; padding: 0 8px; }
.link-btn { border: 0; background: none; padding: 0; color: var(--accent); cursor: pointer; text-align: left; font-size: 12px; }
.rate { font-size: 11px; color: var(--muted); }

/* ===== 主區域與工具列 ===== */
.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--bg); position: relative; }
.toolbar {
  height: 52px; flex: none; display: flex; align-items: center; gap: 8px;
  padding: 0 12px; border-bottom: 1px solid var(--border); background: var(--toolbar);
}
.nav-btns { display: flex; gap: 2px; }
.tb-btn {
  width: 30px; height: 28px; display: grid; place-items: center;
  border: 0; border-radius: 6px; background: none; cursor: pointer; color: var(--text);
}
.tb-btn svg { width: 18px; height: 18px; }
.tb-btn:hover:not(:disabled) { background: var(--hover); }
.tb-btn:disabled { opacity: 0.3; cursor: default; }
.tb-btn.toggle.on { background: var(--sel-soft); color: var(--accent); }
.only-narrow { display: none; }

/* ===== 側邊欄收合（寬螢幕） ===== */
.app { transition: grid-template-columns 0.2s ease; }
.app.sidebar-collapsed { grid-template-columns: 0 1fr; }
.sidebar { overflow: hidden; }
.app.sidebar-collapsed .sidebar { visibility: hidden; padding-left: 0; padding-right: 0; border-right: 0; }
.tb-btn[aria-expanded="false"] { color: var(--muted); }
.title { font-weight: 700; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.spacer { flex: 1; }
.size-slider { width: 90px; accent-color: var(--muted); }
.size-slider.hidden { visibility: hidden; }

.seg { display: flex; padding: 2px; border-radius: 8px; background: var(--seg-bg); gap: 1px; }
.seg button {
  width: 34px; height: 24px; display: grid; place-items: center;
  border: 0; border-radius: 6px; background: none; cursor: pointer; color: var(--muted);
}
.seg button svg { width: 17px; height: 17px; }
.seg button.active { background: var(--seg-active); color: var(--text); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.18); }

.search {
  display: flex; align-items: center; gap: 5px; height: 28px; padding: 0 8px;
  border-radius: 7px; background: var(--input-bg); color: var(--muted);
  width: 200px; border: 1px solid transparent;
}
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(10, 108, 255, 0.2); }
.search svg { width: 15px; height: 15px; flex: none; }
.search input { border: 0; background: none; outline: none; color: var(--text); font: inherit; min-width: 0; flex: 1; }

.progress { height: 2px; flex: none; background: transparent; overflow: hidden; position: relative; }
.app.is-loading .progress::after {
  content: ""; position: absolute; inset: 0; width: 30%;
  background: var(--accent); animation: slide 1s ease-in-out infinite;
}
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(340%); } }

.content { flex: 1; min-height: 0; overflow: auto; outline: none; position: relative; }
.content.view-column { overflow: hidden; display: flex; }

/* ===== 路徑列 ===== */
.pathbar {
  height: 26px; flex: none; display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 0 10px; border-top: 1px solid var(--border);
  background: var(--toolbar); font-size: 11.5px; color: var(--muted);
}
.crumbs { display: flex; align-items: center; min-width: 0; overflow: hidden; white-space: nowrap; }
.crumb {
  display: inline-flex; align-items: center; gap: 4px; border: 0; background: none;
  padding: 1px 4px; border-radius: 4px; cursor: pointer; color: var(--text); font-size: 11.5px;
  max-width: 220px; min-width: 0;
}
.crumb span { overflow: hidden; text-overflow: ellipsis; }
.crumb:hover { background: var(--hover); }
.crumb svg { width: 13px; height: 13px; flex: none; }
.crumb-sep { color: var(--muted); padding: 0 1px; }
.branch-chip { font-size: 10.5px; padding: 0 5px; border-radius: 4px; background: var(--seg-bg); color: var(--muted); margin-left: 2px; }
.status { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status .warn { color: #e0861a; }

/* ===== 縮圖共用 ===== */
.ico-folder, .ico-file { width: 100%; height: 100%; }
.broken { display: contents; }

/* ===== 圖像檢視 ===== */
.icon-grid {
  display: grid;
  /* 欄數、上下 padding 由 virtual.js 依捲動位置設定 */
  grid-template-columns: repeat(auto-fill, minmax(calc(var(--icon-size) + 22px), 1fr));
  gap: 10px 4px; padding: 18px 16px; align-content: start;
}
.icon-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  min-width: 0; cursor: default; user-select: none;
  height: var(--item-h, auto); overflow: hidden;
}
.icon-item .thumb {
  width: var(--icon-size); height: var(--icon-size);
  display: grid; place-items: center; padding: 7px; border-radius: 9px;
}
.icon-item .thumb img {
  /* grid 子項目的百分比 max-height 不會生效，改用明確尺寸（扣掉 padding） */
  max-width: calc(var(--icon-size) - 14px); max-height: calc(var(--icon-size) - 14px); object-fit: contain;
  border-radius: 3px; box-shadow: var(--shadow-img);
  background: repeating-conic-gradient(rgba(128,128,128,.12) 0 25%, transparent 0 50%) 0 0 / 12px 12px;
}
.icon-item .thumb svg { width: 80%; height: 80%; }
.icon-item .thumb .ico-file { width: 66%; }
.icon-item .label { max-width: 100%; text-align: center; font-size: 12px; }
.icon-item .label span {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; word-break: break-all; padding: 1px 6px; border-radius: 4px;
}
.icon-item .sub { font-size: 10.5px; color: var(--muted); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.icon-item.selected .thumb { background: var(--sel-thumb); }
.icon-item.selected .label span { background: var(--accent); color: var(--accent-text); }

/* ===== 列表檢視 ===== */
.list { min-width: 560px; padding-bottom: 12px; }
.list-head, .row { display: grid; grid-template-columns: minmax(240px, 1fr) 110px 160px; align-items: center; }
.list.with-loc .list-head, .list.with-loc .row { grid-template-columns: minmax(200px, 1fr) 90px 130px minmax(160px, 0.9fr); }
.list-head {
  position: sticky; top: 0; z-index: 1; height: 28px; padding: 0 18px;
  background: var(--bg); border-bottom: 1px solid var(--border);
  font-size: 11.5px; color: var(--muted); font-weight: 500;
}
.list-head > div + div, .row > div + div { padding-left: 10px; border-left: 1px solid transparent; }
.list-head > div + div { border-left-color: var(--border); }
.list-body { padding: 4px 8px 0; } /* 上下 padding 由 virtual.js 設定 */
.row { height: 26px; padding: 0 10px; border-radius: 5px; cursor: default; user-select: none; }
.row.alt { background: var(--stripe); }
.row.selected { background: var(--accent); color: var(--accent-text); }
.row.selected .c-size, .row.selected .c-kind, .row.selected .c-loc { color: rgba(255, 255, 255, 0.85); }
.c-name { display: flex; align-items: center; gap: 4px; min-width: 0; padding-left: calc(var(--depth, 0) * 18px); }
.c-size, .c-kind, .c-loc { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.c-size { text-align: right; padding-right: 10px; }
.disc { width: 14px; height: 18px; flex: none; display: grid; place-items: center; cursor: pointer; }
.disc.closed::before, .disc.open::before {
  content: ""; width: 0; height: 0;
  border-top: 4px solid transparent; border-bottom: 4px solid transparent;
  border-left: 6px solid currentColor; opacity: 0.55; transition: transform 0.12s;
}
.disc.open::before { transform: rotate(90deg); }
.mini { width: 18px; height: 18px; flex: none; display: grid; place-items: center; }
.mini img { max-width: 18px; max-height: 18px; object-fit: contain; border-radius: 2px; }
.mini svg { width: 17px; height: 17px; }
.mini .ico-file { width: 14px; }
.nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== 直欄檢視 ===== */
/* position: relative 讓各欄的 offsetLeft 以這裡為基準，不受捲動影響 */
.columns { position: relative; display: flex; flex: 1; overflow-x: auto; overflow-y: hidden; height: 100%; }
.col {
  position: relative; flex: none; width: 250px; height: 100%; overflow-y: auto;
  border-right: 1px solid var(--border); padding: 4px 6px;
}
.col-item {
  display: flex; align-items: center; gap: 6px; height: 24px; padding: 0 6px;
  border-radius: 5px; cursor: default; user-select: none;
}
.col-item.trail { background: var(--sel-soft); }
.col-item.selected { background: var(--accent); color: var(--accent-text); }
.chev { margin-left: auto; opacity: 0.45; font-size: 14px; }
.col-empty { color: var(--muted); padding: 8px; font-size: 12px; }
.col-preview {
  flex: 1; min-width: 280px; width: auto; border-right: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; padding: 24px; text-align: center;
}
.pv-media { width: 100%; max-width: 520px; height: min(52vh, 440px); display: grid; place-items: center; }
.pv-media img {
  max-width: 100%; max-height: min(52vh, 440px); object-fit: contain; border-radius: 4px; box-shadow: var(--shadow-img);
  background: repeating-conic-gradient(rgba(128,128,128,.12) 0 25%, transparent 0 50%) 0 0 / 14px 14px;
}
.pv-media svg { width: 120px; height: 120px; }
.pv-name { font-weight: 600; font-size: 14px; word-break: break-all; }
.pv-meta { color: var(--muted); font-size: 12px; }
.pv-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 6px; }
.btn {
  height: 26px; padding: 0 12px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--toolbar); cursor: pointer; text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  color: var(--text); font-size: 12px; white-space: nowrap;
}
.btn:hover { background: var(--hover); }

/* ===== 空狀態 / 歡迎頁 ===== */
.empty { height: 100%; display: grid; place-items: center; color: var(--muted); padding: 40px; text-align: center; }
.welcome {
  min-height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; padding: 40px 20px; text-align: center;
}
.welcome-icon { width: 84px; height: 84px; }
.welcome-icon svg { width: 100%; height: 100%; filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.18)); }
.welcome h1 { margin: 0; font-size: 26px; letter-spacing: -0.02em; }
.welcome p { margin: 0; color: var(--muted); }
.welcome form { display: flex; gap: 8px; width: min(520px, 100%); margin-top: 6px; }
.welcome input {
  flex: 1; min-width: 0; height: 36px; padding: 0 12px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit; font-size: 14px; outline: none;
}
.welcome input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(10, 108, 255, 0.2); }
.welcome form button { height: 36px; padding: 0 16px; border-radius: 9px; border: 0; background: var(--accent); color: #fff; cursor: pointer; font-weight: 600; }
.examples { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; align-items: center; color: var(--muted); font-size: 12px; }
.examples button { border: 1px solid var(--border); background: none; border-radius: 99px; padding: 2px 10px; cursor: pointer; font-size: 12px; }
.examples button:hover { background: var(--hover); }
.hints { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; color: var(--muted); font-size: 12px; margin-top: 10px; }
.spinner {
  width: 26px; height: 26px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--accent); animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 快速查看（燈箱） ===== */
.ql {
  position: fixed; inset: 0; z-index: 50; display: flex; flex-direction: column;
  background: rgba(22, 22, 24, 0.97); color: #f5f5f7;
  animation: qlIn 0.16s ease-out;
}
.ql.hidden { display: none; }
@keyframes qlIn { from { opacity: 0; transform: scale(0.985); } to { opacity: 1; transform: none; } }
body.ql-open { overflow: hidden; }
.ql-bar { height: 52px; flex: none; display: flex; align-items: center; gap: 12px; padding: 0 14px; }
.ql-heading { flex: 1; min-width: 0; text-align: center; }
.ql-title { font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ql-meta { font-size: 11.5px; color: #a1a1a6; }
.ql-btn {
  width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px;
  border: 0; background: rgba(255, 255, 255, 0.08); color: #f5f5f7; cursor: pointer;
}
.ql-btn:hover { background: rgba(255, 255, 255, 0.16); }
.ql-btn svg { width: 16px; height: 16px; }
.ql-stage {
  flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center;
  padding: 6px 72px 14px; overflow: hidden;
}
.ql-img {
  max-width: 100%; max-height: calc(100dvh - 52px - 96px - 20px);
  object-fit: contain; border-radius: 4px; box-shadow: 0 12px 48px rgba(0, 0, 0, 0.55);
  cursor: zoom-in; user-select: none;
  background: repeating-conic-gradient(rgba(255,255,255,.06) 0 25%, transparent 0 50%) 0 0 / 16px 16px;
}
.ql-stage.zoom { overflow: auto; align-items: flex-start; justify-content: flex-start; }
.ql-stage.zoom .ql-img { max-width: none; max-height: none; cursor: zoom-out; margin: auto; }
.ql-text {
  width: min(980px, 100%); height: calc(100dvh - 52px - 96px - 20px); margin: 0; overflow: auto;
  background: #1c1c1e; border: 1px solid #333; border-radius: 10px; padding: 16px 20px;
  font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; word-break: break-word;
  color: #e5e5ea;
}
.ql-other { display: flex; flex-direction: column; align-items: center; gap: 12px; color: #a1a1a6; }
.ql-other svg { width: 160px; height: 160px; }
.ql-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 64px; border-radius: 10px; border: 0; cursor: pointer;
  background: rgba(255, 255, 255, 0.07); color: #fff; display: grid; place-items: center;
}
.ql-nav:hover:not(:disabled) { background: rgba(255, 255, 255, 0.16); }
.ql-nav:disabled { opacity: 0.15; cursor: default; }
.ql-nav svg { width: 20px; height: 20px; }
.ql-nav.prev { left: 16px; }
.ql-nav.next { right: 16px; }
.ql-strip {
  height: 96px; flex: none; display: flex; align-items: center; gap: 6px;
  padding: 12px 16px; overflow-x: auto; overflow-y: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.08); background: rgba(0, 0, 0, 0.3);
  scrollbar-width: thin;
}
.ql-thumb {
  flex: none; width: 70px; height: 64px; padding: 4px; display: grid; place-items: center;
  border-radius: 8px; border: 2px solid transparent; background: none; cursor: pointer; opacity: 0.62;
  transition: opacity 0.12s, background 0.12s;
}
.ql-thumb:hover { opacity: 0.9; }
.ql-thumb.active { opacity: 1; background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.35); }
.ql-thumb img { max-width: 58px; max-height: 52px; object-fit: contain; border-radius: 2px; }
.ql-thumb svg { width: 40px; height: 40px; }
.ql-strip:empty { display: none; }

/* ===== 對話框與提示 ===== */
.dialog {
  border: 1px solid var(--border); border-radius: 12px; padding: 20px; width: min(440px, calc(100vw - 32px));
  background: var(--bg); color: var(--text); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.dialog::backdrop { background: rgba(0, 0, 0, 0.3); }
.dialog h3 { margin: 0 0 8px; font-size: 15px; }
.dialog p { margin: 0 0 8px; color: var(--muted); font-size: 12.5px; }
.dialog a { color: var(--accent); }
.dialog .note { font-size: 11.5px; }
.dialog input {
  width: 100%; height: 32px; padding: 0 10px; margin: 6px 0 14px; border-radius: 7px;
  border: 1px solid var(--border); background: var(--input-bg); color: var(--text); font: inherit; outline: none;
}
.dialog input:focus { border-color: var(--accent); }
.dialog menu { display: flex; gap: 8px; margin: 0; padding: 0; }
.dialog menu button { height: 28px; padding: 0 14px; border-radius: 7px; border: 1px solid var(--border); background: var(--toolbar); cursor: pointer; }
.dialog menu .primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.dialog menu .danger { color: #e5484d; }

.toast {
  position: fixed; left: 50%; bottom: 44px; transform: translateX(-50%); z-index: 60;
  max-width: min(560px, calc(100vw - 32px)); padding: 9px 14px; border-radius: 10px;
  background: rgba(40, 40, 42, 0.95); color: #fff; font-size: 12.5px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3); transition: opacity 0.2s;
}
.toast.error { background: rgba(190, 40, 45, 0.96); }
.toast.hidden { opacity: 0; pointer-events: none; }

/* ===== 窄螢幕 ===== */
@media (max-width: 780px) {
  .app, .app.sidebar-collapsed { grid-template-columns: 1fr; }
  .app.sidebar-collapsed .sidebar { visibility: visible; padding: 14px 10px 10px; border-right: 1px solid var(--border); }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; width: 270px; z-index: 40;
    transform: translateX(-102%); transition: transform 0.2s ease;
  }
  .app.sidebar-open .sidebar { transform: none; box-shadow: 0 0 40px rgba(0, 0, 0, 0.3); }
  .only-narrow { display: grid; }
  .size-slider, .title { display: none; }
  .toolbar { gap: 6px; padding: 0 8px; }
  .search { width: auto; flex: 1; min-width: 80px; }
  .spacer { display: none; }
  .ql-stage { padding: 6px 12px 14px; }
  .ql-nav { display: none; }
  .col { width: 200px; }
}

/* ===== 首頁最近開啟 ===== */
.recents { width: min(560px, 100%); margin-top: 14px; text-align: left; }
.recents-title { font-size: 11px; font-weight: 600; color: var(--muted); margin: 0 0 6px 4px; }
/* 一整條清單，最多 5 列（每列固定高度） */
.recent-list {
  display: flex; flex-direction: column; max-height: calc(5 * 48px + 2px); overflow-y: auto;
  border: 1px solid var(--border); border-radius: 10px; background: var(--toolbar);
}
.recent-row {
  display: flex; align-items: center; gap: 10px; flex: none; height: 48px; padding: 0 12px; min-width: 0;
  border: 0; border-bottom: 1px solid var(--border); background: none; cursor: pointer; text-align: left;
}
.recent-row:last-child { border-bottom: 0; }
.recent-row:hover { background: var(--hover); }
.rc-icon { width: 18px; height: 18px; flex: none; color: var(--accent); }
.rc-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.rc-name, .rc-sub { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rc-name { font-weight: 600; font-size: 12.5px; }
.rc-sub { font-size: 11px; color: var(--muted); }
.rc-time { font-size: 11px; color: var(--muted); white-space: nowrap; flex: none; }
.rc-chev { color: var(--muted); font-size: 15px; flex: none; }

/* ===== 右鍵選單 ===== */
.ctx {
  position: fixed; z-index: 80; min-width: 210px; padding: 5px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 9px;
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.28);
}
.ctx.hidden { display: none; }
.ctx-item {
  display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; border: 0; background: none;
  padding: 4px 10px; border-radius: 5px; cursor: default; font-size: 13px; outline: none; color: var(--text);
}
.ctx-item:hover:not(:disabled), .ctx-item:focus-visible { background: var(--accent); color: #fff; }
.ctx-item:hover:not(:disabled) .ctx-right, .ctx-item:focus-visible .ctx-right { color: rgba(255, 255, 255, 0.8); }
.ctx-item.danger { color: #e5484d; }
.ctx-item.danger:hover { background: #e5484d; color: #fff; }
.ctx-label { flex: 1; white-space: nowrap; }
.ctx-right { color: var(--muted); font-size: 11.5px; white-space: nowrap; padding-left: 16px; }
.ctx-check { width: 12px; flex: none; text-align: center; font-size: 12px; }
.ctx-heading { padding: 4px 10px 2px; font-size: 11px; font-weight: 600; color: var(--muted); }
.ctx-item:disabled { opacity: 0.4; }
.ctx-sep { height: 1px; margin: 4px 6px; background: var(--border); }

/* ===== 下載進度 ===== */
.dl {
  position: fixed; right: 16px; bottom: 40px; z-index: 70; width: min(320px, calc(100vw - 32px));
  display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: center;
  padding: 10px 12px; border-radius: 10px; background: var(--bg); border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}
.dl.hidden { display: none; }
.dl-text { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dl-bar { grid-column: 1; height: 4px; border-radius: 2px; background: var(--seg-bg); overflow: hidden; }
.dl-fill { height: 100%; width: 0; background: var(--accent); transition: width 0.15s; }
.dl-cancel { grid-column: 2; grid-row: 1 / span 2; border: 1px solid var(--border); background: var(--toolbar); border-radius: 6px; padding: 3px 10px; cursor: pointer; font-size: 12px; }

/* ===== Tooltip ===== */
.tooltip {
  position: fixed; left: 0; top: 0; z-index: 90; pointer-events: none;
  padding: 4px 8px; border-radius: 6px; font-size: 11.5px; white-space: nowrap;
  background: rgba(30, 30, 32, 0.94); color: #f5f5f7; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  opacity: 0; transition: opacity 0.08s;
}
.tooltip.show { opacity: 1; }

/* ===== 框選 ===== */
.icon-grid, .list { min-height: 100%; }
.marquee {
  position: absolute; z-index: 5; pointer-events: none;
  border: 1px solid var(--accent); background: rgba(10, 108, 255, 0.14); border-radius: 2px;
}
body.dragging { user-select: none; -webkit-user-select: none; cursor: default; }

/* ===== 設定 ===== */
.settings-btn {
  display: flex; align-items: center; gap: 6px; border: 0; background: none; padding: 4px 0;
  color: var(--text); cursor: pointer; font-size: 12.5px;
}
.settings-btn svg { width: 16px; height: 16px; color: var(--muted); }
.settings-btn:hover svg { color: var(--text); }
.set-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 10px 0; }
.set-label { font-size: 13px; }
.seg-text button { width: auto; padding: 0 12px; font-size: 12px; color: var(--text); }
.dialog select {
  height: 28px; padding: 0 8px; border-radius: 7px; border: 1px solid var(--border);
  background: var(--input-bg); color: var(--text); font: inherit;
}
.dialog hr { border: 0; border-top: 1px solid var(--border); margin: 14px 0 12px; }
.dialog h4 { margin: 0 0 6px; font-size: 13px; }
.token-row { display: flex; gap: 8px; align-items: center; margin: 6px 0 14px; }
.token-row input { margin: 0; flex: 1; }
.token-row button { height: 32px; padding: 0 12px; border-radius: 7px; border: 1px solid var(--border); background: var(--toolbar); cursor: pointer; }
.token-row .danger { color: #e5484d; }

/* ===== 側邊欄品牌（點擊回首頁） ===== */
.brand {
  display: flex; align-items: center; gap: 8px; padding: 4px 8px; margin: -4px 0 -4px;
  border: 0; border-radius: 7px; background: none; cursor: pointer; color: var(--text);
  font-size: 14px; font-weight: 700; letter-spacing: -0.01em; text-align: left;
}
.brand:hover { background: var(--hover); }
.brand.active { background: var(--sel-soft); }
.brand-icon { width: 22px; height: 22px; flex: none; }
/* 標誌跟隨網站主題（含手動切換），與 favicon 的黑白亮暗兩版一致 */
.bi-tile { fill: var(--logo-tile); }
.bi-border { stroke: var(--logo-border); }
.bi-glyph { fill: var(--logo-glyph); }
.bi-cut { stroke: var(--logo-tile); }

/* ===== 原始碼連結 ===== */
.source-link {
  display: flex; align-items: center; gap: 6px; padding: 4px 0; width: fit-content;
  color: var(--muted); font-size: 12px; text-decoration: none;
}
.source-link svg { width: 16px; height: 16px; }
.source-link:hover { color: var(--text); }
.welcome-foot { margin-top: 18px; font-size: 12px; color: var(--muted); }
.welcome-foot a { color: var(--muted); }
.welcome-foot a:hover { color: var(--text); }

/* ===== 側邊欄拖曳排序 ===== */
.repo-list { padding-bottom: 24px; } /* 讓清單下方也能放下（移到最後） */
.repo-item { position: relative; }
.repo-item.dragging { opacity: 0.4; }
.repo-item.drop-before::before, .repo-item.drop-after::after {
  content: ""; position: absolute; left: 6px; right: 6px; height: 2px; border-radius: 1px; background: var(--accent);
}
.repo-item.drop-before::before { top: -1px; }
.repo-item.drop-after::after { bottom: -1px; }