:root {
  color-scheme: light;
  --bg: #f5f6f5;
  --card: #fff;
  --surface: #f8faf8;
  --ink: #303732;
  --muted: #66726a;
  --line: #e3e8e4;
  --primary: #078747;
  --primary-hover: #056e39;
  --primary-soft: #e8f6ed;
  --green: #078747;
  --amber: #9a600b;
  --red: #c53b3b;
  --warning-soft: #fff7e8;
  --danger-soft: #fff0ef;
  --shadow: 0 3px 16px rgba(32, 48, 39, .06);
  --radius: 10px;
  --sidebar-width: 216px;
  --header-height: 64px;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171c19;
  --card: #202722;
  --surface: #28302a;
  --ink: #e5ede7;
  --muted: #aab8ae;
  --line: #364139;
  --primary: #62d990;
  --primary-hover: #83e7a9;
  --primary-soft: #253e2d;
  --green: #62d990;
  --amber: #e8b66b;
  --red: #ff9891;
  --warning-soft: #3a3022;
  --danger-soft: #3c2929;
  --shadow: 0 3px 16px rgba(0, 0, 0, .16);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-gutter: stable; }
body { margin: 0; color: var(--ink); background: var(--bg); font: 14px/1.65 "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
::selection { color: var(--ink); background: var(--primary-soft); }
h1, h2, h3, p { margin: 0; }
h1 { font-size: 20px; line-height: 1.4; font-weight: 600; letter-spacing: -.02em; }
h2 { margin-bottom: 16px; font-size: 16px; line-height: 1.5; font-weight: 600; }
a { color: var(--primary); text-decoration: none; text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button, .link { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 36px; padding: 7px 13px; border: 1px solid transparent; border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 500; line-height: 1.5; transition: background .18s, border-color .18s; }
button:hover, .link:hover { text-decoration: none; }
button:disabled { opacity: .55; cursor: wait; }
button.primary, .link.primary { color: #fff; background: var(--primary); }
button.primary:hover, .link.primary:hover { background: var(--primary-hover); }
[data-theme="dark"] button.primary, [data-theme="dark"] .link.primary { color: #132b1b; }
button.secondary, .link.secondary { color: var(--ink); background: var(--card); border-color: var(--line); }
button.secondary:hover, .link.secondary:hover { color: var(--primary); background: var(--primary-soft); border-color: var(--primary); }
button.danger { color: var(--red); background: var(--card); border-color: var(--line); }
button.danger:hover { background: var(--danger-soft); border-color: var(--red); }
.icon { flex: none; vertical-align: middle; }
button .icon, .link .icon { width: 16px; height: 16px; }
.icon-button { color: var(--muted); background: transparent; width: 36px; padding: 8px; }
.icon-button:hover { color: var(--primary); background: var(--primary-soft); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
main:focus { outline: none; }
.muted { color: var(--muted); }
.mono { font: 12px/1.6 "SFMono-Regular", Consolas, monospace; overflow-wrap: anywhere; }
.ok { color: var(--green); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 12px; z-index: 200; padding: 10px 16px; background: var(--card); color: var(--primary); border-radius: 6px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.card { background: var(--card); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
section.card { margin-bottom: 20px; }

/* White navigation and compact green controls follow the supplied reference. */
.shell { min-height: 100dvh; }
.sidebar { position: fixed; inset: 0 auto 0 0; z-index: 60; width: var(--sidebar-width); display: flex; flex-direction: column; background: var(--card); border-right: 1px solid var(--line); }
.brand { min-height: var(--header-height); display: flex; align-items: center; gap: 10px; padding: 0 24px; color: var(--ink); font-size: 20px; font-weight: 600; border-bottom: 1px solid var(--line); }
.brand:hover { text-decoration: none; }
.brand .icon { color: var(--primary); width: 23px; height: 23px; }
.sidebar nav { display: grid; gap: 5px; padding: 22px 10px; }
.sidebar nav a { display: flex; align-items: center; gap: 11px; min-height: 44px; padding: 10px 16px; color: var(--muted); border-radius: 6px; }
.sidebar nav a.active, .sidebar nav a:hover { color: var(--primary); background: var(--primary-soft); text-decoration: none; }
.sidebar nav a.active { font-weight: 600; }
.sidebar nav .icon { width: 18px; height: 18px; }
.sidebar-note { margin-top: auto; padding: 24px; color: var(--muted); font-size: 12px; line-height: 1.9; }
.sidebar-bottom { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--line); }
.logout { margin: 0; }
.logout-button { color: var(--red); background: none; padding: 7px; }
.logout-button:hover { background: var(--danger-soft); }
.theme-sun { display: none; }
[data-theme="dark"] .theme-moon { display: none; }
[data-theme="dark"] .theme-sun { display: block; }
.workspace { margin-left: var(--sidebar-width); min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: var(--header-height); padding: 12px 28px; background: var(--card); border-bottom: 1px solid var(--line); }
.topbar-title { display: flex; align-items: center; gap: 10px; min-width: 0; }
.topbar-title h1 { font-size: 17px; overflow-wrap: anywhere; }
.heading-icon { color: var(--primary); }
.topbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.menu-toggle { display: none; }
.content { padding: 28px; min-width: 0; }
.page-intro { margin-bottom: 24px; }
.page-intro h2 { margin-bottom: 6px; font-size: 21px; }
.stats { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin-bottom: 24px; padding: 0; overflow: hidden; }
.stat { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 26px 12px; gap: 6px; }
.stat + .stat { border-left: 1px solid var(--line); }
a.stat:hover { background: var(--surface); text-decoration: none; }
a.stat:focus-visible { outline-offset: -3px; }
.stat .num { color: var(--ink); font-size: 32px; font-weight: 600; line-height: 1.25; font-variant-numeric: tabular-nums; }
.stat .label { color: var(--muted); font-size: 12px; }
.stat.ok .num { color: var(--green); }
.stat.warn .num { color: var(--amber); }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.chip-link { padding: 5px 13px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--muted); font-size: 13px; }
.chip-link.active, .chip-link:hover { background: var(--primary-soft); color: var(--primary); border-color: var(--primary); text-decoration: none; }
.table-wrap { width: 100%; overflow-x: auto; border-radius: 4px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { color: var(--muted); text-align: left; font-size: 12px; font-weight: 500; background: var(--surface); white-space: nowrap; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr:hover td { background: var(--surface); }
.events { min-width: 640px; }
.events td:first-child, .repos td:last-child { white-space: nowrap; font-size: 12px; font-variant-numeric: tabular-nums; }
/* Column widths are set so the five columns fit the panel without the last
   one sliding under the edge; the version lines wrap instead of widening. */
.repos { min-width: 760px; table-layout: fixed; }
.repos th:nth-child(1) { width: 28.5%; }
.repos th:nth-child(2) { width: 28.5%; }
.repos th:nth-child(3) { width: 17%; }
.repos th:nth-child(4) { width: 12%; }
.repos th:nth-child(5) { width: 14%; }
/* 本地与上游合并成一个网格：两侧各占一列，名称 / 版本各占一行。
   行由两侧共享，两侧的版本行因此永远同层。子项顺序是网格的契约
   （列优先填充），不要插入额外子项。 */
.repo-pair { display: grid; grid-auto-flow: column; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: auto auto; }
.repo-pair > * { min-width: 0; }
.pair-local { padding-right: 14px; }
.pair-upstream { padding-left: 14px; }
.pair-name { overflow-wrap: anywhere; }
.pair-name.pair-local { font-weight: 500; }
.version-line { margin-top: 4px; }
.version-chip { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
/* 逐字折行会让短 SHA 失去可读性：每个片段整体换行，不在片段内部断开。 */
.version-chip > span { white-space: nowrap; }
.version-chip .version-side { padding: 0 5px; border-radius: 4px; background: var(--surface); color: var(--muted); font-size: 10px; }
.version-chip .sha { font-variant-numeric: tabular-nums; letter-spacing: .01em; }
.version-chip .sha-behind { color: var(--amber); }
.version-chip .sha-unsynced { color: var(--red); }
.version-chip .tag-version { margin-left: 0; padding: 0; color: var(--primary); border: 0; background: none; font-weight: 500; }
.version-chip .tag-version.tag-missing { color: var(--muted); font-weight: 400; }
.version-chip .version-date { font-size: 11px; }
/* One comparison label per row: the two short SHAs above are matched by this.
   The label names the reason the two heads differ, so it wraps as a whole
   between the text and the SHA instead of overflowing the column. */
.verdict { display: inline-flex; align-items: baseline; flex-wrap: wrap; gap: 2px 6px; padding: 2px 8px; margin-bottom: 4px; border-radius: 5px; font-size: 11px; font-weight: 500; }
.verdict > span { white-space: nowrap; }
.verdict .verdict-sha { font-size: 11px; font-variant-numeric: tabular-nums; }
.v-same, .v-contains { background: var(--primary-soft); color: var(--green); }
.v-behind { background: var(--warning-soft); color: var(--amber); }
.v-unsynced, .v-gone, .v-diverged { background: var(--danger-soft); color: var(--red); }
.v-pending { background: var(--surface); color: var(--muted); }
.repos td:nth-child(2) .verdict { display: flex; width: fit-content; }
.badge { display: inline-flex; align-items: center; padding: 3px 9px; border-radius: 5px; font-size: 11px; line-height: 1.5; font-weight: 500; white-space: nowrap; background: var(--surface); color: var(--muted); }
.s-synced, .kind-synced, .kind-merge { background: var(--primary-soft); color: var(--green); }
.s-behind, .s-pending, .kind-discover { background: var(--primary-soft); color: var(--primary); }
.s-diverged, .s-blocked, .s-error, .s-needs_attention, .kind-blocked, .kind-error { background: var(--danger-soft); color: var(--red); }
.kind-auth { background: var(--warning-soft); color: var(--amber); }
.tag { display: inline-block; color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; margin-left: 6px; font-size: 10px; font-weight: 400; white-space: nowrap; }
.tag-warn { color: var(--amber); border-color: var(--amber); background: var(--warning-soft); }
.ext-link { display: inline-flex; align-items: center; vertical-align: middle; margin-left: 6px; padding: 3px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); background: var(--card); }
.ext-link:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-soft); text-decoration: none; }
.ext-link .icon { width: 13px; height: 13px; }
.notice, .error { border-radius: 6px; padding: 12px 14px; margin-bottom: 20px; font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; }
.notice { color: var(--primary); background: var(--primary-soft); }
.notice.warn { color: var(--amber); background: var(--warning-soft); }
.error { color: var(--red); background: var(--danger-soft); }
.err-hint { color: var(--red); margin-top: 6px; font-size: 12px; max-width: 44ch; overflow-wrap: anywhere; }
.error-details { display: table; margin-top: 4px; font-size: 12px; white-space: nowrap; }
#error-dialog { width: min(640px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); margin: auto; padding: 24px; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: auto; }
#error-dialog:not([open]) { display: none; }
#error-dialog::backdrop { background: rgba(15, 28, 20, .45); }
#error-dialog-title { margin-bottom: 8px; padding-right: 64px; overflow-wrap: anywhere; }
#error-dialog-repo { margin-bottom: 16px; color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
#error-dialog-message { max-height: min(55dvh, 520px); padding: 14px 16px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; white-space: pre-wrap; overflow-wrap: anywhere; overflow: auto; overscroll-behavior: contain; }
#error-dialog [data-error-close] { position: absolute; top: 16px; right: 16px; color: var(--muted); background: var(--surface); border-color: var(--line); }
#error-dialog [data-error-close]:hover { color: var(--primary); background: var(--primary-soft); border-color: var(--primary); }
.back-link { display: inline-flex; align-items: center; gap: 4px; margin-bottom: 20px; color: var(--muted); font-size: 13px; }
.back-link .icon { width: 14px; height: 14px; transform: rotate(180deg); }
.kv { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 14px 20px; margin: 0 0 24px; }
.kv dt { color: var(--muted); font-size: 13px; }
.kv dd { margin: 0; overflow-wrap: anywhere; max-width: 80ch; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; }
.actions form { display: inline-flex; }

/* Keep forms native, labeled and comfortably usable on touch screens. */
label { display: block; font-size: 13px; font-weight: 500; color: var(--ink); }
input[type="password"], input[type="url"], input[type="number"], input[type="text"] { width: 100%; min-height: 42px; padding: 9px 12px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; caret-color: var(--primary); transition: border-color .18s, background .18s; }
input::placeholder { color: var(--muted); opacity: 1; }
input:focus { background: var(--card); border-color: var(--primary); outline: 2px solid var(--primary-soft); outline-offset: 1px; }
input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--primary); }
form.inline { display: flex; gap: 10px; align-items: center; }
form.inline input { flex: 1; min-width: 0; }
form.inline button { min-height: 42px; flex-shrink: 0; }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.content section form:not(.inline):not(.actions form) > label { margin-bottom: 16px; }
.content label input:not([type="checkbox"]) { display: block; margin-top: 7px; max-width: 500px; }
.content section form:not(.inline) > button { margin-top: 6px; }
.stacked-form { display: grid; gap: 8px; }
.stacked-form input { margin-bottom: 14px; }
.stacked-form .error { margin-bottom: 8px; }

/* Centered authentication follows the reference, without changing credentials. */
.auth-layout { min-height: 100dvh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 24px; }
.auth-card { width: min(100%, 400px); padding: 36px; }
.auth-wide { width: min(100%, 460px); }
.auth-brand { display: flex; justify-content: center; align-items: center; gap: 9px; margin-bottom: 28px; color: var(--ink); font-size: 23px; font-weight: 600; }
.auth-brand:hover { text-decoration: none; }
.auth-brand .icon { color: var(--primary); width: 25px; height: 25px; }
.auth-card h1 { text-align: center; font-size: 18px; }
.auth-description { color: var(--muted); text-align: center; margin: 8px 0 28px; font-size: 13px; }
.auth-submit { width: 100%; min-height: 42px; margin-top: 6px; }
.auth-submit .icon { margin-left: 4px; }
.auth-footnote { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 22px 0 0; color: var(--muted); font-size: 11px; }
.auth-footnote .icon { width: 14px; height: 14px; }
.auth-caption { color: var(--muted); margin-top: 24px; font-size: 12px; }
.connect-steps { margin: 0 0 22px; padding-left: 20px; color: var(--muted); font-size: 13px; }
.connect-steps li + li { margin-top: 12px; }
.auth-back { display: block; text-align: center; margin-top: 22px; font-size: 12px; }
.auth-card form + form, .auth-card .link + form { margin-top: 12px; }
.sidebar-overlay { display: none; }

@media (min-width: 1500px) { .content { padding: 32px 36px; } .topbar { padding-inline: 36px; } }
@media (max-width: 1000px) {
  :root { --sidebar-width: 190px; }
  .content { padding: 22px; }
  .topbar { padding-inline: 22px; }
}
@media (max-width: 760px) {
  :root { --header-height: 60px; }
  html { scrollbar-gutter: auto; }
  .workspace { margin-left: 0; }
  .sidebar { position: static; width: 100%; border-right: 0; border-bottom: 1px solid var(--line); }
  .sidebar .brand { display: none; }
  .sidebar nav { display: flex; padding: 10px; }
  .sidebar-note, .sidebar-bottom { display: none; }
  .js .sidebar { position: fixed; width: 250px; transform: translateX(-100%); transition: transform .2s ease-out; border-right: 1px solid var(--line); }
  .js .sidebar .brand { display: flex; }
  .js .sidebar nav { display: grid; padding: 20px 10px; }
  .js .sidebar-note, .js .sidebar-bottom { display: flex; }
  .js .sidebar-note { display: block; }
  .js .menu-toggle { display: inline-flex; }
  .nav-open { overflow: hidden; }
  .nav-open .sidebar { transform: translateX(0); }
  .nav-open .sidebar-overlay:not([hidden]) { display: block; position: fixed; inset: 0; background: rgba(15, 28, 20, .3); border: 0; border-radius: 0; z-index: 50; }
  .topbar { padding: 10px 16px; gap: 8px; }
  .topbar-title { gap: 7px; }
  .topbar-title h1 { font-size: 16px; }
  .topbar-title .heading-icon { display: none; }
  .topbar-actions button { padding-inline: 10px; font-size: 12px; }
  .content { padding: 20px 16px; }
  .page-intro { margin-bottom: 20px; }
  .page-intro h2 { font-size: 19px; }
  .card { padding: 20px 16px; }
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 0; }
  .stat { padding: 18px 8px; }
  .stat .num { font-size: 27px; }
  .stat:nth-child(4), .stat:nth-child(5) { border-top: 1px solid var(--line); }
  .stat:nth-child(4) { border-left: 0; }
  .filters { gap: 6px; }
  .chip-link { min-height: 36px; padding: 6px 11px; }
  form.inline { flex-direction: column; align-items: stretch; }
  form.inline input { flex: none; }
  .kv { grid-template-columns: 86px minmax(0, 1fr); gap: 14px 12px; font-size: 13px; }
  .actions { align-items: stretch; }
  .actions button { min-height: 42px; }
  .auth-layout { padding: 28px 20px; }
  .auth-card { padding: 30px 24px; }
  .auth-brand { margin-bottom: 24px; }
  .icon-button { min-height: 40px; width: 40px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; } }

@media (max-width: 760px) {
  .repos, .events { display: block; min-width: 0; }
  .repos tbody, .events tbody { display: block; }
  /* Card layout: the desktop column widths must not constrain the stacked rows. */
  .repos tr:has(td) td { width: auto !important; }
  .repos tr:has(th), .events tr:has(th) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .repos tr:has(td), .events tr:has(td) { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .repos tr:last-child, .events tr:last-child { border-bottom: 0; }
  .repos td, .events td { display: block; padding: 0; border: 0; min-width: 0; overflow-wrap: anywhere; }
  .repos td { grid-column: 1 / -1; }
  /* 卡片里两侧改回上下堆叠：本地块在前，上游块在后。 */
  .repo-pair { display: block; }
  .pair-local, .pair-upstream { padding: 0; }
  .pair-name { font-size: 14px; }
  .pair-name.pair-upstream { font-size: 11px; }
  .pair-name.pair-upstream::before { content: "上游："; display: block; }
  .version-line { font-size: 12px; }
  /* Local and upstream version lines stay adjacent so the two SHAs read as a pair. */
  .repos td:nth-child(2) { grid-row: 2; grid-column: 1; }
  .repos td:nth-child(3) { grid-row: 2; grid-column: 2; }
  .repos td:nth-child(4) { grid-row: 3; }
  .repos td[data-label] { font-size: 11px; white-space: normal; }
  .repos td[data-label]::before { content: attr(data-label) "："; }
  .repos .version-line { white-space: nowrap; }
  .events td:first-child { grid-column: 1 / -1; font-size: 11px; }
  .events td:nth-child(3) { grid-column: 2; grid-row: 2; font-size: 12px; }
  .events td:last-child { grid-column: 1 / -1; font-size: 12px; }
  .events[data-columns="3"] td:last-child { grid-row: 3; }
}