/* 剑雅练习台 — answer-sheet design system */
:root {
  --paper: #F3F5F7;
  --sheet: #FFFFFF;
  --ink: #23262D;
  --pencil: #5C6270;
  --faint: #8A909C;
  --rule: #DDE2E9;
  --rule-strong: #BCC4D0;
  --form: #3D5A99;
  --form-deep: #2C4377;
  --form-soft: #EAEFF8;
  --redpen: #C8372D;
  --redpen-soft: #FCEDEB;
  --tick: #2F7D55;
  --tick-soft: #E4F2EA;
  --amber: #A86A12;
  --amber-soft: #FBF1DF;
  --hl: #FFE76A;
  --hl2: #9FE3C7;
  --f-ui: "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --f-num: Bahnschrift, "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
  --f-read: Georgia, "Sitka Text", "Times New Roman", "SimSun", serif;
  --rail-w: 188px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.6 var(--f-ui);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--form); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--form); outline-offset: 2px; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: 0; }
h1 { font-size: 24px; line-height: 1.3; }
h2 { font-size: 18px; line-height: 1.35; }
h3 { font-size: 15px; }
.num { font-family: var(--f-num); font-stretch: 87.5%; font-variant-numeric: tabular-nums; }
.muted { color: var(--pencil); }
.faint { color: var(--faint); }
.small { font-size: 13px; }
.hidden { display: none !important; }

/* ------------------------------------------------ shell */
.shell { display: grid; grid-template-columns: var(--rail-w) 1fr; min-height: 100vh; }
.rail {
  position: sticky; top: 0; height: 100vh;
  background: var(--sheet); border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; padding: 16px 0;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 20px 18px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 4px; background: var(--form);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 22'%3E%3Cpath d='M6 11.5l3.5 3.5 6.5-8' stroke='%23fff' stroke-width='2.4' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.brand-name { font-weight: 700; font-size: 16px; }
.nav-group { display: flex; flex-direction: column; padding: 6px 0; border-top: 1px solid var(--rule); }
.nav-group:first-of-type { border-top: 0; }
.nav-group a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 20px; color: var(--pencil); border-left: 3px solid transparent;
}
.nav-group a:hover { color: var(--ink); background: var(--paper); text-decoration: none; }
.nav-group a.active { color: var(--form-deep); border-left-color: var(--form); background: var(--form-soft); font-weight: 600; }
.nav-bottom { margin-top: auto; }
.nav-count { font-family: var(--f-num); font-size: 12px; color: var(--redpen); }
main { min-width: 0; outline: none; }

/* ------------------------------------------------ page scaffolding */
.page { max-width: 1180px; padding: 28px 32px 64px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head p { margin: 4px 0 0; color: var(--pencil); }
.section { margin-top: 28px; }
.section > h2 { margin-bottom: 10px; }
.panel { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 16px 18px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.empty { padding: 28px; text-align: center; color: var(--pencil); background: var(--sheet); border: 1px dashed var(--rule-strong); border-radius: 8px; }

/* ------------------------------------------------ buttons & inputs */
.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 7px 14px; border-radius: 6px; border: 1px solid var(--rule-strong);
  background: var(--sheet); color: var(--ink); cursor: pointer; white-space: nowrap; line-height: 1.4;
}
.btn:hover { border-color: var(--form); color: var(--form-deep); text-decoration: none; }
.btn.primary { background: var(--form); border-color: var(--form); color: #fff; }
.btn.primary:hover { background: var(--form-deep); color: #fff; }
.btn.quiet { border-color: transparent; background: transparent; color: var(--form); padding: 4px 8px; }
.btn.quiet:hover { background: var(--form-soft); }
.btn.small { padding: 3px 10px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn.rec { background: var(--redpen); border-color: var(--redpen); color: #fff; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; }
.field label { font-size: 13px; color: var(--pencil); }
.input, select.input, textarea.input {
  padding: 7px 10px; border: 1px solid var(--rule-strong); border-radius: 6px; background: var(--sheet); min-width: 0;
}
.input:focus { border-color: var(--form); outline: none; box-shadow: 0 0 0 3px var(--form-soft); }
.seg { display: inline-flex; border: 1px solid var(--rule-strong); border-radius: 6px; overflow: hidden; background: var(--sheet); }
.seg button { border: 0; background: none; padding: 5px 12px; cursor: pointer; color: var(--pencil); border-left: 1px solid var(--rule); }
.seg button:first-child { border-left: 0; }
.seg button.on { background: var(--form); color: #fff; }
.tag { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; background: var(--form-soft); color: var(--form-deep); white-space: nowrap; }
.tag.red { background: var(--redpen-soft); color: var(--redpen); }
.tag.green { background: var(--tick-soft); color: var(--tick); }
.tag.amber { background: var(--amber-soft); color: var(--amber); }

/* ------------------------------------------------ home: progress matrix */
.matrix { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 14px 18px 18px; overflow-x: auto; }
.matrix table { border-collapse: separate; border-spacing: 0; }
.matrix th { font-weight: 500; font-size: 12px; color: var(--faint); padding: 0 0 6px; text-align: center; }
.matrix th.tno { font-family: var(--f-num); color: var(--pencil); font-size: 13px; }
.matrix td { padding: 2px 1px; }
.matrix td.book { font-family: var(--f-num); font-stretch: 87.5%; font-size: 16px; font-weight: 600; color: var(--form); padding-right: 14px; white-space: nowrap; }
.matrix td.gap { width: 14px; }
.cell {
  width: 30px; height: 26px; border: 1px solid var(--rule); border-radius: 3px; display: grid; place-items: center;
  font-family: var(--f-num); font-stretch: 87.5%; font-size: 12px; color: var(--pencil); background: var(--sheet); cursor: pointer;
}
.cell:hover { border-color: var(--form); text-decoration: none; }
.cell.l1 { background: #F4D9D5; border-color: #E9BDB6; color: #8E2A22; }
.cell.l2 { background: #F7E7C8; border-color: #EBD3A2; color: #7A4E0F; }
.cell.l3 { background: #D3EBDD; border-color: #B3D9C2; color: #1F5A3B; }
.cell.l4 { background: #2F7D55; border-color: #2F7D55; color: #fff; }
.cell.na { background: repeating-linear-gradient(135deg, #fff 0 4px, #EEF0F3 4px 6px); cursor: default; }
.legend { display: flex; gap: 14px; align-items: center; margin-top: 12px; font-size: 12px; color: var(--pencil); flex-wrap: wrap; }
.legend .cell { width: 18px; height: 14px; cursor: default; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }

.stat-line { display: flex; gap: 32px; flex-wrap: wrap; }
.stat-line div { display: flex; flex-direction: column; }
.stat-line b { font-family: var(--f-num); font-stretch: 87.5%; font-size: 30px; line-height: 1.1; color: var(--ink); font-weight: 600; }
.stat-line span { font-size: 13px; color: var(--pencil); }

/* ------------------------------------------------ book picker */
.shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.bookcard { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 12px 14px; }
.bookcard h3 { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.bookcard h3 .num { font-size: 22px; color: var(--form); font-weight: 600; }
.testrow { display: grid; grid-template-columns: 56px 1fr; align-items: center; gap: 8px; padding: 5px 0; border-top: 1px solid var(--rule); }
.testrow .tl { font-size: 13px; color: var(--pencil); }
.units { display: flex; gap: 4px; flex-wrap: wrap; }
.unit {
  font-size: 13px; padding: 2px 8px; border: 1px solid var(--rule-strong); border-radius: 4px; color: var(--ink); background: var(--sheet);
  font-family: var(--f-num); font-stretch: 87.5%;
}
.unit:hover { border-color: var(--form); color: var(--form); text-decoration: none; }
.unit.done { border-color: #B3D9C2; background: var(--tick-soft); color: var(--tick); }
.unit.full { font-family: var(--f-ui); font-stretch: normal; }

/* ------------------------------------------------ workspace (practice) */
.ws { display: grid; grid-template-rows: auto 1fr; height: 100vh; }
.ws-top {
  display: flex; align-items: center; gap: 14px; padding: 10px 18px; background: var(--sheet);
  border-bottom: 1px solid var(--rule); flex-wrap: wrap; min-height: 56px;
}
.ws-title { font-weight: 600; white-space: nowrap; }
.ws-title .num { color: var(--form); }
.ws-spacer { flex: 1; }
.timer { font-family: var(--f-num); font-stretch: 87.5%; font-size: 22px; font-weight: 600; min-width: 74px; text-align: right; }
.timer.over { color: var(--redpen); }
.ws-body { display: grid; grid-template-columns: minmax(0, 1fr) 340px; min-height: 0; }
.ws-body.wide-right { grid-template-columns: minmax(0, 1fr) minmax(380px, 44%); }
.pane { min-height: 0; overflow: auto; }
.pane-left { background: #E7EAEE; position: relative; }
.pane-right { background: var(--paper); border-left: 1px solid var(--rule); }
.tabs { display: flex; gap: 2px; align-items: center; padding: 8px 12px 0; position: sticky; top: 0; z-index: 3; background: #E7EAEE; flex-wrap: wrap; }
.tabs button {
  border: 1px solid transparent; border-bottom: 0; background: none; padding: 5px 12px; cursor: pointer;
  border-radius: 6px 6px 0 0; color: var(--pencil);
}
.tabs button.on { background: var(--sheet); border-color: var(--rule); color: var(--ink); font-weight: 600; }
.tabs .zoom { margin-left: auto; display: flex; gap: 4px; align-items: center; font-size: 13px; color: var(--pencil); }
.pdfpages { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 12px 16px 40px; }
.pdfpage { background: #fff; box-shadow: 0 1px 2px rgba(35, 38, 45, .18), 0 0 0 1px rgba(35, 38, 45, .06); position: relative; }
.pdfpage canvas { display: block; }
.pdfpage .pno { position: absolute; top: 4px; right: -34px; font-family: var(--f-num); font-size: 12px; color: var(--faint); }
.pdf-msg { padding: 40px; color: var(--pencil); text-align: center; }

/* audio bar */
.audiobar { display: flex; align-items: center; gap: 10px; min-width: 300px; flex: 1 1 380px; max-width: 640px; }
.audiobar .play {
  width: 34px; height: 34px; border-radius: 50%; border: 0; background: var(--form); color: #fff; cursor: pointer;
  display: grid; place-items: center; flex: none;
}
.audiobar .play:hover { background: var(--form-deep); }
.audiobar input[type=range] { flex: 1; accent-color: var(--form); }
.audiobar .t { font-family: var(--f-num); font-size: 14px; color: var(--pencil); min-width: 92px; text-align: center; }
.audiobar select { border: 1px solid var(--rule-strong); border-radius: 4px; background: #fff; padding: 2px 4px; font-size: 13px; }

/* ------------------------------------------------ answer sheet */
.sheet { background: var(--sheet); border-bottom: 1px solid var(--rule); }
.sheet-head { padding: 12px 14px 10px; border-bottom: 2px solid var(--form); display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.sheet-head h3 { color: var(--form-deep); }
.sheet-head .score { font-family: var(--f-num); font-stretch: 87.5%; font-size: 26px; font-weight: 600; }
.ghead {
  padding: 8px 14px 6px; background: var(--form-soft); border-bottom: 1px solid var(--rule); font-size: 13px; color: var(--pencil);
}
.ghead b { color: var(--form-deep); font-weight: 600; margin-right: 6px; }
.ghead .gtype { float: right; }
.qrow { display: grid; grid-template-columns: 46px minmax(0, 1fr) 34px; border-bottom: 1px solid var(--rule); min-height: 42px; }
.qrow .qno {
  font-family: var(--f-num); font-stretch: 87.5%; font-weight: 600; font-size: 18px; color: var(--form);
  display: grid; place-items: center; border-right: 1px solid var(--rule);
}
.qrow .qans { padding: 4px 8px; display: flex; flex-direction: column; justify-content: center; gap: 2px; min-width: 0; }
.qrow .qmark { border-left: 1px solid var(--rule); display: grid; place-items: center; }
.qrow input.ans {
  border: 0; border-bottom: 1px dashed var(--rule-strong); background: transparent; padding: 5px 2px; width: 100%;
  font-size: 15px; outline: none; border-radius: 0;
}
.qrow input.ans:focus { border-bottom: 1.5px solid var(--form); }
.bubbles { display: flex; flex-wrap: wrap; gap: 4px; padding: 5px 0; }
.bubble {
  min-width: 28px; height: 22px; padding: 0 5px; border-radius: 11px; border: 1.3px solid #C78AA0; background: #fff;
  font-family: var(--f-num); font-size: 13px; color: #9B5570; cursor: pointer; line-height: 1;
}
.bubble.wide { min-width: 0; padding: 0 9px; font-family: var(--f-ui); font-size: 12px; }
.bubble:hover { border-color: var(--ink); color: var(--ink); }
.bubble.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.qrow.ok { background: linear-gradient(90deg, var(--tick-soft), #fff 70%); }
.qrow.bad { background: linear-gradient(90deg, var(--redpen-soft), #fff 70%); }
.qrow .yours { font-size: 14px; }
.qrow.bad .yours { color: var(--redpen); text-decoration: line-through; text-decoration-thickness: 1.5px; }
.qrow .key { font-size: 14px; color: var(--tick); font-weight: 600; }
.qrow .key::before { content: "答案 "; font-weight: 400; color: var(--faint); font-size: 12px; }
.qrow .ai-btn { align-self: flex-start; margin: 2px 0 4px -6px; }
.explain { grid-column: 1 / -1; padding: 10px 14px 12px 46px; background: #FAFBFC; border-top: 1px dashed var(--rule); font-size: 14px; }
.explain p { margin: 4px 0; }
.explain .quote { font-family: var(--f-read); color: var(--ink); background: #fff; border-left: 3px solid var(--hl2); padding: 6px 10px; margin: 6px 0; }
.sheet-foot { padding: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.pen { width: 22px; height: 22px; }

/* ------------------------------------------------ highlighter */
.hl { background: linear-gradient(transparent 30%, var(--hl) 30%, var(--hl) 88%, transparent 88%); padding: 0 2px; }
.hl2 { background: linear-gradient(transparent 30%, var(--hl2) 30%, var(--hl2) 88%, transparent 88%); padding: 0 2px; }

/* ------------------------------------------------ synonym trainer */
.drill { max-width: 760px; }
.drill-card { background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; padding: 22px 24px; }
.drill-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--pencil); margin-bottom: 14px; gap: 10px; flex-wrap: wrap; }
.drill-stem { font-family: var(--f-read); font-size: 20px; line-height: 1.55; margin: 6px 0 18px; }
.drill-ask { color: var(--pencil); margin-bottom: 10px; }
.opts { display: grid; gap: 8px; }
.opt {
  text-align: left; padding: 11px 14px; border: 1px solid var(--rule-strong); border-radius: 8px; background: #fff; cursor: pointer;
  font-family: var(--f-read); font-size: 17px; display: grid; grid-template-columns: 28px 1fr; align-items: center;
}
.opt .ol { font-family: var(--f-num); color: var(--form); font-size: 15px; }
.opt:hover:not([disabled]) { border-color: var(--form); background: var(--form-soft); }
.opt.right { border-color: var(--tick); background: var(--tick-soft); }
.opt.wrong { border-color: var(--redpen); background: var(--redpen-soft); }
.opt[disabled] { cursor: default; }
.reveal { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--rule-strong); }
.reveal .src { font-family: var(--f-read); font-size: 17px; line-height: 1.6; margin: 6px 0 10px; }
.listen-btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 30px; border: 0; cursor: pointer;
  background: var(--form); color: #fff; font-size: 15px;
}
.listen-btn:hover { background: var(--form-deep); }
.progressbar { height: 4px; background: var(--rule); border-radius: 2px; overflow: hidden; margin-bottom: 18px; }
.progressbar i { display: block; height: 100%; background: var(--form); transition: width .3s; }
.pairs { width: 100%; border-collapse: collapse; background: var(--sheet); }
.pairs td, .pairs th { padding: 8px 10px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.pairs th { font-size: 13px; font-weight: 500; color: var(--pencil); background: var(--paper); }
.pairs td.en { font-family: var(--f-read); }

/* ------------------------------------------------ mistakes */
.mlist { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; }
.mrow { display: grid; grid-template-columns: 150px minmax(0, 1fr) auto; gap: 14px; padding: 12px 16px; border-bottom: 1px solid var(--rule); align-items: start; }
.mrow:last-child { border-bottom: 0; }
.mref { font-size: 14px; }
.mref b { font-family: var(--f-num); font-stretch: 87.5%; color: var(--form); font-size: 16px; }
.mans { font-size: 14px; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.mans .yours { color: var(--redpen); text-decoration: line-through; }
.mans .key { color: var(--tick); font-weight: 600; }
.mact { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }

/* ------------------------------------------------ writing & speaking */
.editor { display: flex; flex-direction: column; height: 100%; }
.editor textarea {
  flex: 1; min-height: 320px; resize: none; border: 0; padding: 18px 20px; font-family: var(--f-read); font-size: 17px; line-height: 1.75;
  background:
    linear-gradient(var(--sheet), var(--sheet)) padding-box;
  outline: none;
}
.editor-bar { display: flex; align-items: center; gap: 10px; padding: 8px 14px; border-top: 1px solid var(--rule); background: var(--sheet); flex-wrap: wrap; }
.wc { font-family: var(--f-num); font-size: 18px; font-weight: 600; }
.wc.low { color: var(--amber); }
.fb { padding: 16px 18px; }
.fb .bands { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin: 10px 0 16px; }
.fb .band { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 10px 12px; }
.fb .band b { display: block; font-family: var(--f-num); font-stretch: 87.5%; font-size: 28px; line-height: 1.1; color: var(--form-deep); }
.fb .band span { font-size: 12px; color: var(--pencil); }
.fb .overall b { color: #fff; }
.fb .overall { background: var(--form); border-color: var(--form); }
.fb .overall span { color: #DDE5F5; }
.fb h3 { margin: 18px 0 6px; }
.fb .crit { margin: 6px 0; font-size: 14px; }
.fix { border-bottom: 1px solid var(--rule); padding: 8px 0; font-size: 14px; }
.fix .o { color: var(--redpen); text-decoration: line-through; font-family: var(--f-read); }
.fix .r { color: var(--tick); font-family: var(--f-read); }
.rewrite { font-family: var(--f-read); line-height: 1.7; white-space: pre-wrap; background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 14px 16px; }
.cue { font-family: var(--f-read); background: var(--sheet); border: 1px solid var(--rule-strong); border-radius: 4px; padding: 18px 22px; font-size: 17px; line-height: 1.6; }
.cue ul { margin: 6px 0; padding-left: 22px; }
.sq { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--rule); }
.sq .q { font-family: var(--f-read); font-size: 16px; }
.sq.cur { background: var(--form-soft); margin: 0 -12px; padding: 10px 12px; border-radius: 6px; }
.recpanel { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 14px 16px; margin-top: 14px; }
.transcript { font-family: var(--f-read); min-height: 60px; padding: 10px 12px; background: var(--paper); border-radius: 6px; margin: 10px 0; white-space: pre-wrap; }
.transcript .interim { color: var(--faint); }
.recdot { width: 10px; height: 10px; border-radius: 50%; background: var(--redpen); display: inline-block; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .2; } }

/* ------------------------------------------------ analysis */
.bars { display: flex; flex-direction: column; gap: 6px; }
.bar { display: grid; grid-template-columns: 150px 1fr 74px; gap: 10px; align-items: center; font-size: 13px; }
.bar .track { height: 14px; background: var(--paper); border-radius: 2px; position: relative; overflow: hidden; }
.bar .fill { position: absolute; inset: 0 auto 0 0; background: var(--form); border-radius: 2px; }
.bar .fill.low { background: var(--redpen); }
.bar .fill.mid { background: var(--amber); }
.bar .v { font-family: var(--f-num); text-align: right; color: var(--pencil); }
.chart svg { width: 100%; height: auto; display: block; }
.chart text { font-family: var(--f-num); font-size: 11px; fill: var(--faint); }
.report { line-height: 1.75; }
.report h2 { font-size: 16px; margin: 18px 0 6px; color: var(--form-deep); }
.report ul { padding-left: 20px; margin: 6px 0; }

/* ------------------------------------------------ modal / toast */
.modal { position: fixed; inset: 0; background: rgba(35, 38, 45, .45); display: grid; place-items: center; z-index: 50; padding: 20px; }
.modal-card { background: var(--paper); border-radius: 10px; width: min(1100px, 100%); max-height: 92vh; display: flex; flex-direction: column; overflow: hidden; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; background: var(--sheet); border-bottom: 1px solid var(--rule); }
.modal-body { overflow: auto; min-height: 0; }
#toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 9px 16px;
  border-radius: 6px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 60; max-width: 90vw;
}
#toast.show { opacity: 1; }
.spinner { width: 16px; height: 16px; border: 2px solid var(--rule); border-top-color: var(--form); border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; vertical-align: -3px; }
@keyframes spin { to { transform: rotate(360deg); } }
.notice { padding: 10px 14px; border-radius: 6px; background: var(--amber-soft); color: #6B4A12; font-size: 14px; }
.notice a { color: inherit; text-decoration: underline; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .rail { position: static; height: auto; flex-direction: row; overflow-x: auto; padding: 0; border-right: 0; border-bottom: 1px solid var(--rule); }
  .brand { padding: 12px 14px; }
  .brand-name { display: none; }
  .nav-group { flex-direction: row; border-top: 0; padding: 0; }
  .nav-group a { border-left: 0; border-bottom: 3px solid transparent; padding: 14px 10px; white-space: nowrap; }
  .nav-group a.active { border-bottom-color: var(--form); }
  .nav-bottom { margin-top: 0; }
  .page { padding: 20px 16px 48px; }
  .ws { height: auto; }
  .ws-body, .ws-body.wide-right { grid-template-columns: 1fr; }
  .pane { overflow: visible; }
  .pane-left { max-height: 70vh; overflow: auto; }
  .mrow { grid-template-columns: 1fr; }
  .bar { grid-template-columns: 110px 1fr 60px; }
}

/* home layout */
.home-grid { display: grid; grid-template-columns: max-content minmax(260px, 1fr); gap: 16px; align-items: start; }
.home-grid .side { display: flex; flex-direction: column; gap: 16px; }
.home-grid .side .panel h2 { margin-bottom: 8px; }
.home-grid .bar { grid-template-columns: 1fr 90px 62px; }
@media (max-width: 1180px) { .home-grid { grid-template-columns: 1fr; } }
@media (max-width: 900px) { .pdfpage .pno { display: none; } }
.qrow.bad .yours.none, .mans .yours.none { text-decoration: none; font-size: 13px; }
.pairs th { white-space: nowrap; }

/* login + sharing */
body.login-mode .rail { display: none; }
body.login-mode .shell { grid-template-columns: 1fr; }
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.login form { width: min(360px, 100%); }
.who { display: flex; align-items: center; justify-content: space-between; padding: 6px 14px 6px 20px; font-size: 13px; color: var(--pencil); }
.cmd { display: flex; gap: 8px; align-items: center; margin: 6px 0 10px; }
.cmd code { flex: 1; min-width: 0; overflow-x: auto; white-space: nowrap; font-family: Consolas, "Cascadia Mono", monospace; font-size: 13px; background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: 6px 10px; }
.steps { margin: 8px 0 0; padding-left: 20px; }
.steps li { margin-bottom: 10px; }
.ulist { border: 1px solid var(--rule); border-radius: 8px; margin: 10px 0 14px; }
.urow { display: grid; grid-template-columns: 1fr 1.4fr auto; gap: 10px; align-items: center; padding: 8px 12px; border-bottom: 1px solid var(--rule); font-size: 14px; }
.urow:last-child { border-bottom: 0; }
.login .brand-name { display: inline; }