/* ───────────────────────────────────────────────────────────────────────────
   登录路由页（apps/web/login.html）+ 顶栏账号菜单
   ───────────────────────────────────────────────────────────────────────────
   构图借用编辑设计：一整张纸，三栏用 1px 线分开，中间只放 logo 和品牌名。
   · 左栏竖排宣言，右栏是登录 / 注册。
   · 登录栏不是浮层 —— 它就在网格里，缩放窗口时和封面一起重排。
   · 一屏放得下时（≥901）不滚动；更窄时整页纵向滚动，顺序变成 封面 → 登录。
   颜色、字体全部复用 app.css 的 token，不在这里另造一套。
   ─────────────────────────────────────────────────────────────────────────── */

.auth-page {
  background: var(--card);
  overflow: auto;
  --auth-left: 208px;
  --auth-right: 392px;
  --auth-pad: clamp(20px, 2.2vw, 34px);
}

.auth-shell {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: 56px minmax(0, 1fr) 46px;
  background: var(--card);
}

/* ── 顶栏 ──────────────────────────────────────────────────────────────── */
.auth-top {
  display: flex; align-items: center; gap: 10px;
  padding: 0 var(--auth-pad);
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
.auth-brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text); text-decoration: none; flex: 0 0 auto;
}
.auth-brand-mark { display: block; width: 30px; height: 30px; overflow: visible; }
.auth-brand-name {
  font-family: var(--font-editorial); font-size: 17px; letter-spacing: -.01em;
}
.auth-top-sep { color: var(--dim); font-size: 12px; }
.auth-top-meta {
  font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim);
  white-space: nowrap;
}
.auth-clock {
  font-family: var(--mono); font-size: 11px; color: var(--subtle);
  font-variant-numeric: tabular-nums; letter-spacing: .04em;
}

/* ── 三栏网格 ───────────────────────────────────────────────────────────── */
.auth-grid {
  display: grid;
  grid-template-columns: var(--auth-left) minmax(0, 1fr) var(--auth-right);
  min-height: 0;
}

/* 栏头：编号 + 短线 + 小字，右栏和左栏共用 */
.rail-index {
  font-family: var(--mono); font-size: 10px; color: var(--dim);
  font-variant-numeric: tabular-nums;
}
.rail-rule { display: block; background: var(--border); }
.rail-cap {
  font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim);
  white-space: nowrap;
}

.auth-rail-left {
  display: flex; flex-direction: column; align-items: flex-start;
  justify-content: space-between;
  gap: 14px; padding: 26px var(--auth-pad) 30px;
  border-right: 1px solid var(--border);
}
.auth-rail-left .rail-rule { width: 1px; height: 54px; flex: 0 0 auto; margin-bottom: auto; }
.rail-body { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.rail-vert {
  margin: 0; writing-mode: vertical-rl;
  font-family: var(--font-editorial); font-size: 16px; line-height: 1.9;
  letter-spacing: .26em; color: var(--text);
}

/* ── 中：品牌舞台 ───────────────────────────────────────────────────────── */
.auth-stage {
  position: relative; min-width: 0;
  display: grid; place-items: center;
  padding: 40px 24px 88px;
}
.stage-center {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  max-width: 100%;
}
.stage-logo {
  width: 78px; height: 78px; display: block;
  animation: auth-rise .8s cubic-bezier(.22, 1, .36, 1) both;
}
.stage-wordmark {
  margin: 14px 0 0;
  font-family: var(--font-editorial);
  font-size: clamp(46px, 6.1vw, 92px);
  font-weight: 400; line-height: .96; letter-spacing: -.025em;
  color: var(--text);
  animation: auth-rise .9s .06s cubic-bezier(.22, 1, .36, 1) both;
}
.stage-reg {
  font-family: var(--font-ui);
  font-size: .22em; font-weight: 400; letter-spacing: 0;
  vertical-align: super; margin-left: .12em; color: var(--subtle);
}
.stage-sub {
  margin: 18px 0 0;
  font-size: 12px; letter-spacing: .04em; color: var(--subtle);
  animation: auth-rise .9s .12s cubic-bezier(.22, 1, .36, 1) both;
}
.stage-line {
  margin: 14px 0 0;
  font-family: var(--font-editorial); font-size: 15px; line-height: 1.9; color: var(--muted);
  animation: auth-rise .9s .18s cubic-bezier(.22, 1, .36, 1) both;
}
.stage-cta {
  margin-top: 30px; height: 34px; padding: 0 15px;
  display: inline-flex; align-items: center; gap: 9px;
  font: inherit; font-size: 12px; letter-spacing: .06em; color: var(--text);
  background: transparent; border: 1px solid var(--border); border-radius: 999px;
  cursor: pointer;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
  animation: auth-rise .9s .24s cubic-bezier(.22, 1, .36, 1) both;
}
.stage-cta svg { transition: transform .18s ease; color: var(--subtle); }
.stage-cta:hover { background: var(--panel); border-color: var(--line-strong); }
.stage-cta:hover svg { transform: translateY(2px); color: var(--accent); }
.stage-cta:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }

.stage-foot {
  position: absolute; left: 24px; right: 24px; bottom: 24px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim);
  flex-wrap: wrap;
}
.stage-foot-dot { width: 3px; height: 3px; border-radius: 999px; background: var(--dim); }

/* ── 右：登录 / 注册 ────────────────────────────────────────────────────── */
.auth-rail-right {
  display: flex; flex-direction: column;
  padding: 26px var(--auth-pad) 24px;
  border-left: 1px solid var(--border);
  min-width: 0;
}
.access-head { display: flex; align-items: center; gap: 10px; }
.access-head .rail-rule { flex: 1 1 auto; height: 1px; }

.access-add {
  margin: 14px 0 0; padding: 8px 10px;
  font-size: 11.5px; line-height: 1.55; color: var(--text);
  background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 8px;
}
.access-add[hidden] { display: none; }

.auth-card { margin-top: 16px; min-width: 0; }

.auth-tabs { display: flex; gap: 22px; border-bottom: 1px solid var(--border-soft); }
.auth-tabs button {
  position: relative; margin-bottom: -1px; padding: 0 0 10px;
  font: inherit; font-size: 13px; color: var(--subtle);
  background: transparent; border: 0; cursor: pointer;
  transition: color .14s ease;
}
.auth-tabs button::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px;
  background: var(--text); transform: scaleX(0); transform-origin: left;
  transition: transform .22s cubic-bezier(.22, 1, .36, 1);
}
.auth-tabs button:hover { color: var(--text); }
.auth-tabs button.active { color: var(--text); font-weight: 600; }
.auth-tabs button.active::after { transform: scaleX(1); }
.auth-tabs button:focus-visible { outline: none; color: var(--text); box-shadow: 0 1px 0 var(--accent); }

.auth-lead {
  margin: 14px 0 0; font-size: 12px; line-height: 1.7; color: var(--subtle);
}

/* 已有账号：一个胶囊一行，点一下就切 */
.auth-recent { margin-top: 16px; }
.auth-recent[hidden] { display: none; }
.auth-recent-label {
  display: block; margin-bottom: 7px;
  font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim);
}
.auth-recent-list {
  display: flex; flex-wrap: nowrap; gap: 6px;
  overflow-x: auto; padding-bottom: 2px;
  scrollbar-width: none;
}
.auth-recent-list::-webkit-scrollbar { display: none; }
.auth-chip {
  display: inline-flex; align-items: center; gap: 7px;
  height: 28px; padding: 0 10px;
  font: inherit; font-size: 12px; color: var(--text);
  background: var(--card); border: 1px solid var(--border); border-radius: 999px;
  cursor: pointer; max-width: 100%;
  transition: background .14s ease, border-color .14s ease;
}
.auth-chip:hover { background: var(--panel); border-color: var(--line-strong); }
.auth-chip.is-current { border-color: var(--accent-line); background: var(--accent-soft); }
.auth-chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.auth-chip-tag { font-size: 9.5px; letter-spacing: .04em; color: var(--dim); flex: 0 0 auto; }

/* 表单：下划线输入，比一圈圈框更接近「一张纸」 */
.auth-form { display: flex; flex-direction: column; }
.auth-field { display: flex; flex-direction: column; gap: 6px; margin-top: 16px; }
.auth-field[hidden] { display: none; }
.af-label {
  font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--subtle);
}
.auth-field input {
  height: 38px; width: 100%; padding: 0 2px;
  font: inherit; font-size: 13.5px; color: var(--text);
  background: transparent; border: 0; border-bottom: 1px solid var(--border); border-radius: 0;
  transition: border-color .16s ease;
}
.auth-field input::placeholder { color: var(--dim); }
.auth-field input:focus { outline: none; border-bottom-color: var(--accent); }
.auth-field:focus-within .af-label { color: var(--text); }
.af-pass { position: relative; display: flex; align-items: center; }
.af-pass input { flex: 1 1 auto; padding-right: 48px; }
.af-peek {
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  padding: 4px 2px; font: inherit; font-size: 11px; color: var(--subtle);
  background: transparent; border: 0; cursor: pointer;
}
.af-peek:hover { color: var(--text); }
.af-peek:focus-visible { outline: none; color: var(--accent); }

.auth-err {
  display: flex; align-items: flex-start; gap: 6px;
  margin: 12px 0 0; font-size: 11.5px; line-height: 1.6; color: var(--danger);
}
.auth-err[hidden] { display: none; }
.auth-err::before {
  content: ''; flex: 0 0 auto; width: 4px; height: 4px; margin-top: 7px;
  border-radius: 999px; background: currentColor;
}

.auth-submit {
  margin-top: 20px; height: 42px; width: 100%; padding: 0 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font: inherit; font-size: 13px; font-weight: 500; color: var(--accent-text);
  background: var(--accent); border: 1px solid var(--accent); border-radius: 8px;
  cursor: pointer;
  transition: background .16s ease, border-color .16s ease, opacity .16s ease;
}
.auth-submit svg { transition: transform .18s ease; }
.auth-submit:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.auth-submit:hover svg { transform: translateX(2px); }
.auth-submit:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-ring); }
.auth-submit:disabled { opacity: .55; cursor: progress; }
.auth-submit.is-busy svg { animation: auth-nudge 1s ease-in-out infinite; }

.auth-or {
  display: flex; align-items: center; gap: 10px; margin: 18px 0 12px;
  color: var(--dim);
}
.auth-or i { flex: 1 1 auto; height: 1px; background: var(--border-soft); }
.auth-or span { font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; }

.auth-oauth-group { display: flex; flex-direction: column; gap: 8px; }
.auth-oauth {
  height: 40px; width: 100%; padding: 0 12px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 12.5px; color: var(--text);
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  cursor: pointer;
  transition: background .14s ease, border-color .14s ease;
}
.auth-oauth svg { color: var(--muted); }
.auth-oauth:hover { background: var(--panel); border-color: var(--line-strong); }
.auth-oauth:hover svg { color: var(--text); }
.auth-oauth:disabled { opacity: .55; cursor: progress; }
.auth-oauth:disabled:hover { background: var(--card); border-color: var(--border); }
.auth-oauth:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }

/* ── 加载态：按钮 / 卡片局部 / 全屏 ────────────────────────────────────── */
@keyframes auth-spin { to { transform: rotate(360deg); } }

/* 按钮态：spinner 顶替原图标，文案由 JS 换 */
.auth-oauth.is-loading svg,
.auth-submit.is-busy svg { display: none; }
.auth-oauth.is-loading::before,
.auth-submit.is-busy::before {
  content: ''; flex: 0 0 auto; width: 13px; height: 13px;
  border: 1.5px solid currentColor; border-right-color: transparent;
  border-radius: 999px; animation: auth-spin .7s linear infinite;
}

/* 卡片局部态：内容变淡、不可点，中央一枚转圈 */
.auth-card { position: relative; }
.auth-card.is-loading > :not(.auth-veil) { opacity: .4; pointer-events: none; }
.auth-veil {
  position: absolute; inset: -4px; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  border-radius: 8px;
  background: color-mix(in srgb, var(--card) 58%, transparent);
  backdrop-filter: blur(1.5px);
  transition: opacity .16s ease;
}
.auth-veil::after {
  content: ''; width: 18px; height: 18px;
  border: 1.5px solid var(--line-strong); border-top-color: var(--accent);
  border-radius: 999px; animation: auth-spin .75s linear infinite;
}
.auth-card.is-loading .auth-veil { opacity: 1; }

/* 全屏态：整页遮罩 + 品牌级转圈，用于跳 GitHub / 等回调 */
.auth-loading {
  position: fixed; inset: 0; z-index: 90;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--card) 55%, transparent);
  backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none;
  transition: opacity .18s ease;
}
.auth-loading.is-on { opacity: 1; pointer-events: auto; }
.auth-loading-card {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 22px 30px;
  margin-top: 20vh; /* 居中偏下，别压住品牌 logo */
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 14px 44px rgba(18, 24, 22, .10);
}
.auth-loading-ring {
  width: 26px; height: 26px;
  border: 2px solid var(--line-strong); border-top-color: var(--accent);
  border-radius: 999px; animation: auth-spin .8s linear infinite;
}
.auth-loading-text {
  font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
}

.auth-fine {
  margin: 16px 0 0; font-size: 10.5px; line-height: 1.75; color: var(--dim);
  text-wrap: pretty;
}

.access-note {
  margin-top: 26px; padding-top: 0;
  max-width: 300px;
}
.access-note-k {
  margin: 0 0 6px; font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim);
}
.access-note-v {
  margin: 0; font-size: 10.5px; line-height: 1.8; color: var(--dim); text-wrap: pretty;
}

.access-foot {
  margin: auto 0 0; padding-top: 16px;
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; color: var(--dim);
}
.access-foot a { color: var(--subtle); text-decoration: none; }
.access-foot a:hover { color: var(--text); }

/* 矮窗口（常见笔记本 1280×800 / 1440×900）：收一档间距，优先保证一屏放完表单 */
@media (max-height: 900px) and (min-width: 901px) {
  .auth-rail-right { padding-top: 20px; padding-bottom: 16px; }
  .auth-card { margin-top: 12px; }
  .auth-recent { margin-top: 12px; }
  .auth-field { margin-top: 12px; }
  .auth-field input { height: 36px; }
  .auth-submit { margin-top: 16px; height: 40px; }
  .auth-or { margin: 14px 0 10px; }
  .auth-oauth { height: 38px; }
  .auth-fine { margin-top: 12px; font-size: 10px; line-height: 1.65; }
  .access-note { display: none; }
  .access-foot { padding-top: 12px; }
  .auth-stage { padding-bottom: 66px; }
  .stage-cta { margin-top: 22px; }
}

/* ── 页脚 ──────────────────────────────────────────────────────────────── */
.auth-foot {
  display: flex; align-items: center; gap: 12px;
  padding: 0 var(--auth-pad);
  border-top: 1px solid var(--border);
  font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim);
}
.auth-foot-links { display: flex; align-items: center; gap: 18px; }
.auth-foot-links a { color: var(--subtle); text-decoration: none; }
.auth-foot-links a:hover { color: var(--text); }

/* ── 动效 ──────────────────────────────────────────────────────────────── */
@keyframes auth-rise {
  from { opacity: 0; transform: translateY(10px); filter: blur(3px); }
  to { opacity: 1; transform: none; filter: none; }
}
@keyframes auth-nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(3px); }
}

/* ── 响应式 ────────────────────────────────────────────────────────────── */
@media (max-width: 1240px) {
  .auth-page { --auth-left: 168px; --auth-right: 360px; }
}
/* 左栏是装饰：先牺牲它，保住中间的品牌和右边的表单 */
@media (max-width: 1080px) {
  .auth-grid { grid-template-columns: minmax(0, 1fr) var(--auth-right); }
  .auth-rail-left { display: none; }
}
@media (max-width: 900px) {
  .auth-shell { grid-template-rows: 56px auto 46px; }
  .auth-grid { grid-template-columns: minmax(0, 1fr); }
  .auth-stage { min-height: 40vh; padding: 34px 20px 26px; }
  .stage-foot { position: static; margin-top: 24px; }
  .auth-rail-right {
    border-left: 0; border-top: 1px solid var(--border);
    padding: 24px 20px 30px;
    max-width: none;
  }
  .auth-card, .access-foot { width: 100%; max-width: 420px; }
  .access-foot { margin-top: 22px; padding-top: 0; }
}
@media (max-width: 520px) {
  .auth-page { --auth-pad: 16px; }
  .auth-top-meta, .auth-top-sep { display: none; }
  .auth-stage { min-height: 34vh; padding: 28px 16px 22px; }
  .stage-wordmark { font-size: 44px; }
  .stage-line { font-size: 13.5px; }
  .stage-sub { font-size: 11px; }
  .stage-logo { width: 62px; height: 62px; }
  .stage-foot { gap: 8px; justify-content: flex-start; }
  .auth-rail-right { padding: 20px 16px 28px; }
}
@media (prefers-reduced-motion: reduce) {
  .stage-logo, .stage-wordmark, .stage-sub, .stage-line, .stage-cta { animation: none; }
  .auth-submit.is-busy svg { animation: none; }
}

/* ───────────────────────────────────────────────────────────────────────────
   主应用顶栏：账号按钮 + 菜单
   菜单是 popover（局部操作，不是路由页面）；「添加账号」和「退出」会跳登录路由。
   ─────────────────────────────────────────────────────────────────────────── */
.account-wrap { position: relative; display: flex; align-items: center; }
.account-btn {
  height: 30px; max-width: 168px; padding: 0 9px;
  display: inline-flex; align-items: center; gap: 7px;
  font: inherit; font-size: 12.5px; color: var(--text);
  background: transparent; border: 1px solid transparent; border-radius: 8px;
  cursor: pointer;
  transition: background .14s ease, border-color .14s ease;
}
.account-btn:hover { background: var(--panel-2); }
.account-btn[aria-expanded="true"] { background: var(--panel-2); border-color: var(--border); }
.account-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-ring); }
.account-dot {
  flex: 0 0 auto; width: 6px; height: 6px; border-radius: 999px; background: var(--ok);
}
.account-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-caret { color: var(--dim); flex: 0 0 auto; transition: transform .16s ease; }
.account-btn[aria-expanded="true"] .account-caret { transform: rotate(180deg); }

.account-menu {
  position: absolute; top: calc(100% + 8px); right: 0; z-index: 60;
  width: 308px; padding: 7px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow:
    0 0 0 .5px rgba(16, 20, 26, .03),
    0 2px 6px rgba(16, 20, 26, .06),
    0 16px 40px -16px rgba(16, 20, 26, .3);
}
.account-menu[hidden] { display: none; }
.am-head { padding: 8px 10px 11px; border-bottom: 1px solid var(--border-soft); margin-bottom: 5px; }
.am-name { margin: 0; font-size: 13px; font-weight: 600; line-height: 1.5; }
.am-mail {
  margin: 2px 0 0; font-family: var(--mono); font-size: 10.5px; color: var(--subtle);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.am-sec {
  padding: 8px 10px 4px;
  font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--dim);
}
.am-item {
  width: 100%; min-height: 32px; padding: 6px 10px;
  display: flex; align-items: center; gap: 8px;
  font: inherit; font-size: 12.5px; text-align: left; color: var(--text);
  background: transparent; border: 0; border-radius: 7px; cursor: pointer;
}
.am-item:hover { background: var(--panel); }
.am-item:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--accent-ring) inset; }
.am-item.danger { color: var(--danger); }
.am-item-muted { color: var(--muted); }
.am-tag { margin-left: auto; font-size: 9.5px; letter-spacing: .04em; color: var(--dim); }
.am-check { display: inline-grid; place-items: center; color: var(--accent); flex: 0 0 auto; }
.am-sep { height: 1px; background: var(--border-soft); margin: 5px 4px; }
.am-rename { display: flex; gap: 6px; padding: 2px 8px 6px; }
.am-rename input {
  flex: 1 1 auto; min-width: 0; height: 29px; padding: 0 8px;
  font: inherit; font-size: 12.5px; color: var(--text);
  background: var(--card); border: 1px solid var(--border); border-radius: 7px;
}
.am-rename input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.am-rename button {
  flex: 0 0 auto; height: 29px; padding: 0 10px;
  font: inherit; font-size: 12px; color: var(--accent-text);
  background: var(--accent); border: 1px solid var(--accent); border-radius: 7px; cursor: pointer;
}
.am-rename button:disabled { opacity: .5; cursor: not-allowed; }