/* Hallmark · macrostructure: Workbench (app) / Long Document (landing) · genre: editorial
 * theme: custom "Ledger" · vibe: exam-serious, premium restraint, paper-and-ink
 * paper oklch(96% 0.011 85) · accent oklch(74% 0.135 72) amber · display Source Serif 4 + body Inter
 * axes: light-warm paper / classical-serif display / warm accent · design-system: design.md · designed-as-app
 * Hallmark · pre-emit critique: P4 H5 E4 S4 R5 V4
 * All class names and IDs preserved — app.js untouched by this restyle.
 */
@import url("tokens.css");

/* Self-hosted fonts only — no visitor IP disclosed to Google (LG München I, 3 O 17493/20). */
@font-face{
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}
@font-face{
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}
@font-face{
  font-family:"Source Serif 4";font-style:normal;font-weight:400 700;font-display:swap;
  src:url("/fonts/source-serif-4-var-latin-ext.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:"Source Serif 4";font-style:normal;font-weight:400 700;font-display:swap;
  src:url("/fonts/source-serif-4-var-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;overflow-x:clip}
body{font-family:var(--font-body);background:var(--color-paper);color:var(--color-ink);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-family:var(--font-display);font-style:normal;font-weight:600;line-height:1.18;margin:.2em 0 .5em;letter-spacing:-.008em;overflow-wrap:anywhere;min-width:0}
a{color:var(--color-accent-deep);text-decoration:underline;text-decoration-color:var(--color-accent);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{text-decoration-thickness:2px}
.reg{font-size:.55em;vertical-align:super}
::selection{background:var(--color-accent-soft)}
img{max-width:100%}

/* ============ Topbar (app chrome — navy band, ruled) ============ */
.topbar{position:sticky;top:0;z-index:30;background:var(--color-header);color:var(--color-header-ink);padding:.75rem 1.25rem;display:flex;flex-wrap:wrap;gap:.85rem;align-items:center;justify-content:space-between;border-bottom:2px solid var(--color-accent)}
.brand h1{font-size:1.12rem;margin:0;color:var(--color-header-ink);font-weight:600;letter-spacing:0}
.brand .sub{margin:0;font-size:.76rem;color:var(--color-header-muted);font-family:var(--font-body)}
.tabs{display:flex;gap:.15rem;flex-wrap:wrap}
.tabs button{border:0;border-bottom:2px solid transparent;background:transparent;color:var(--color-header-muted);padding:.5rem .75rem;border-radius:0;font-size:.9rem;cursor:pointer;font-weight:600;font-family:inherit;transition:color var(--dur-short) var(--ease-out),border-color var(--dur-short) var(--ease-out)}
.tabs button:hover{color:var(--color-header-ink)}
.tabs button.active{color:var(--color-header-ink);border-bottom-color:var(--color-accent)}
.track-switch{display:flex;border:1px solid var(--color-header-rule);border-radius:var(--radius-sm);overflow:hidden}
.track-switch button{border:0;background:transparent;color:var(--color-header-muted);padding:.5rem .95rem;border-radius:0;font-size:.85rem;font-weight:600;cursor:pointer;font-family:inherit;transition:background var(--dur-short) var(--ease-out),color var(--dur-short) var(--ease-out)}
.track-switch button:hover{color:var(--color-header-ink)}
.track-switch button.active{background:var(--color-accent);color:var(--color-accent-ink)}
.track-badge{display:inline-block;color:var(--color-accent-deep);font-size:.8rem;font-weight:600;margin-bottom:.5rem;border-bottom:2px solid var(--color-accent);padding-bottom:.1rem}
.theme-toggle{border:1px solid var(--color-header-rule);background:transparent;color:var(--color-header-ink);width:38px;height:38px;border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;line-height:1;display:grid;place-items:center;transition:background var(--dur-short) var(--ease-out);font-family:inherit}
.theme-toggle:hover{background:oklch(100% 0 0 / .08)}

/* ============ Layout ============ */
main{max-width:1080px;margin:0 auto;padding:1.6rem 1.1rem 4rem}
.view{display:none;animation:fade var(--dur-med) var(--ease-out)}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.card{background:var(--color-paper-2);border:1px solid var(--color-rule);border-radius:var(--radius);padding:1.4rem 1.5rem;margin-bottom:1.2rem}
.muted{color:var(--color-muted);font-size:var(--text-sm)}

/* ============ Buttons — 8-state discipline ============ */
.btn{border:1px solid var(--color-rule-strong);background:var(--color-paper-2);color:var(--color-ink);padding:.6rem 1.15rem;border-radius:var(--radius-sm);font-size:.92rem;font-weight:600;cursor:pointer;font-family:inherit;transition:background var(--dur-short) var(--ease-out),border-color var(--dur-short) var(--ease-out),transform var(--dur-short) var(--ease-out)}
.btn:hover{background:var(--color-paper-3);border-color:var(--color-muted)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-accent-ink)}
.btn.primary:hover{background:var(--color-accent-press);border-color:var(--color-accent-press)}
.btn.small{padding:.4rem .8rem;font-size:.84rem}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}
.tabs button:focus-visible,.track-switch button:focus-visible,.theme-toggle:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.opt:focus-visible,.nav-cell:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--color-focus);outline-offset:1px}

/* ============ Home (app) ============ */
.hero{background:var(--color-paper-2);border:1px solid var(--color-rule);border-left:3px solid var(--color-accent);border-radius:var(--radius);padding:2rem 1.9rem;margin-bottom:1.2rem}
.hero h2{font-size:var(--text-display-s);max-width:24ch;margin-top:0}
.hero p{max-width:62ch;color:var(--color-ink-2);font-size:1.02rem;margin:.4rem 0 0}
.cta-row{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1.3rem}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-bottom:1.2rem}
.stat{display:flex;flex-direction:column;align-items:flex-start;text-align:left;gap:.15rem;border-top:2px solid var(--color-ink);padding-top:.7rem;background:transparent;border-left:0;border-right:0;border-bottom:0;border-radius:0}
.stat .big{font-family:var(--font-display);font-size:2.5rem;font-weight:600;color:var(--color-ink);line-height:1}
.stat span:last-child{color:var(--color-muted);font-size:.86rem}
.frame{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.2rem;margin:.6rem 0}
.frame-col h4{font-size:1.02rem;border-bottom:2px solid var(--color-accent);padding-bottom:.35rem}
.frame-col ol{margin:.6rem 0;padding-left:1.2rem;font-size:.9rem;color:var(--color-ink-2)}
.frame-col li{margin:.25rem 0}

/* ============ Study guide ============ */
.guide-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:1.3rem;align-items:start}
.toc{position:sticky;top:84px;background:var(--color-paper-2);border:1px solid var(--color-rule);border-radius:var(--radius);padding:.7rem;max-height:calc(100vh - 110px);overflow:auto}
.toc a{display:block;padding:.42rem .6rem;border-left:2px solid transparent;color:var(--color-ink-2);text-decoration:none;font-size:.86rem;font-weight:500;transition:color var(--dur-short) var(--ease-out),border-color var(--dur-short) var(--ease-out)}
.toc a:hover{color:var(--color-ink);border-left-color:var(--color-rule-strong)}
.toc a.active{border-left-color:var(--color-accent);color:var(--color-ink);font-weight:600}
.guide-content{background:var(--color-paper-2);border:1px solid var(--color-rule);border-radius:var(--radius);padding:1.6rem 1.8rem}
.guide-section{scroll-margin-top:84px;padding-bottom:1.3rem;margin-bottom:1.3rem;border-bottom:1px solid var(--color-rule)}
.guide-section:last-child{border-bottom:0}
.guide-section h2{font-size:1.45rem}
.guide-content h3{font-size:1.12rem;margin-top:1.2rem}
.guide-content table{width:100%;border-collapse:collapse;margin:.8rem 0;font-size:.88rem}
.guide-content th,.guide-content td{border:1px solid var(--color-rule);padding:.55rem .65rem;text-align:left;vertical-align:top}
.guide-content th{background:var(--color-paper-3);font-weight:700;font-family:var(--font-body)}
.guide-content tr:nth-child(even) td{background:var(--color-paper)}
.guide-content .def{background:var(--color-accent-soft);border-left:3px solid var(--color-accent);padding:.7rem .9rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:.7rem 0}
.guide-content .tip{background:var(--color-good-soft);border-left:3px solid var(--color-good);padding:.7rem .9rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:.8rem 0;font-size:.9rem}
.guide-content ul,.guide-content ol{padding-left:1.3rem}
.guide-content li{margin:.28rem 0}

/* ============ Controls ============ */
.controls{display:flex;gap:.8rem;align-items:center;flex-wrap:wrap;margin-bottom:1.1rem}
.controls.center{justify-content:center}
.controls label{font-size:.82rem;color:var(--color-muted);display:flex;flex-direction:column;gap:.25rem;font-weight:600}
.controls.center label{flex-direction:row;align-items:center}
select{padding:.5rem .65rem;border:1px solid var(--color-rule-strong);border-radius:var(--radius-sm);font-size:.92rem;background:var(--color-paper-2);color:var(--color-ink);font-family:inherit}
select:focus{outline:2px solid var(--color-focus);outline-offset:1px;border-color:var(--color-rule-strong)}
.check{flex-direction:row!important;align-items:center;gap:.4rem!important}
.counter{font-size:.86rem;color:var(--color-muted);font-weight:600;font-variant-numeric:tabular-nums}

/* ============ Flashcards ============ */
.flashcard{perspective:1400px;max-width:640px;margin:0 auto 1rem;cursor:pointer}
.flash-inner{position:relative;width:100%;min-height:260px;transition:transform .55s var(--ease-in-out);transform-style:preserve-3d}
.flash-inner.flipped{transform:rotateY(180deg)}
.flash-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--radius);padding:1.8rem;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;border:1px solid var(--color-rule)}
.flash-front{background:var(--color-paper-2);border-top:3px solid var(--color-accent)}
.flash-back{background:var(--color-header);color:var(--color-header-ink);transform:rotateY(180deg);border-color:var(--color-header)}
.flash-face p{font-size:1.15rem;font-weight:600;margin:.4rem 0;font-family:var(--font-display)}
.flash-back p{font-weight:400;line-height:1.55;font-family:var(--font-body)}
.flash-cat{display:inline-block;color:var(--color-accent-deep);font-size:.8rem;font-weight:600}
.flash-back .flash-cat{color:var(--color-header-muted)}
.flip-hint{position:absolute;bottom:.9rem;font-size:.72rem;opacity:.55}
@media (prefers-reduced-motion: reduce){.flash-inner{transition:none}}

/* ============ Quiz ============ */
.quiz-head{display:flex;align-items:center;gap:1rem;margin-bottom:.9rem}
.bar{flex:1;height:6px;background:var(--color-paper-3);border-radius:0;overflow:hidden}
.bar-fill{height:100%;width:0;background:var(--color-accent);transition:width .35s var(--ease-out)}
.q-cat{display:inline-block;font-size:.8rem;font-weight:600;color:var(--color-accent-deep);margin:0 0 .7rem}
.quiz-q .q-text{font-size:1.18rem;font-weight:600;margin-bottom:1.1rem;font-family:var(--font-display)}
.options{display:flex;flex-direction:column;gap:.55rem}
.opt{text-align:left;border:1px solid var(--color-rule-strong);background:var(--color-paper-2);padding:.8rem 1rem;border-radius:var(--radius-sm);cursor:pointer;font-size:.95rem;font-family:inherit;color:var(--color-ink);transition:border-color var(--dur-short) var(--ease-out),background var(--dur-short) var(--ease-out);display:flex;gap:.7rem;align-items:flex-start}
.opt:hover{border-color:var(--color-ink);background:var(--color-paper)}
.opt .key{font-weight:700;color:var(--color-accent-deep);font-family:var(--font-mono);font-size:.85rem;padding-top:.12rem}
.opt.chosen{border-color:var(--color-accent-deep);background:var(--color-accent-soft)}
.opt.chosen .key{color:var(--color-accent-deep)}
.opt.correct{border-color:var(--color-good);background:var(--color-good-soft)}
.opt.correct .key{color:var(--color-good)}
.opt.wrong{border-color:var(--color-bad);background:var(--color-bad-soft)}
.opt.wrong .key{color:var(--color-bad)}
.opt.disabled{cursor:default;pointer-events:none}
.explain{margin-top:.9rem;background:var(--color-paper-3);border-left:3px solid var(--color-accent);padding:.7rem .9rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.9rem;color:var(--color-ink-2)}
.result-head{text-align:center}
.result-head .score{font-family:var(--font-display);font-size:2.7rem;font-weight:600;margin:.3rem 0}
.score.pass{color:var(--color-good)} .score.fail{color:var(--color-bad)}
.review-item{margin-bottom:.7rem}
.review-item .q-text{font-weight:600}
.badge{font-size:.74rem;font-weight:700;padding:.14rem .45rem;border-radius:var(--radius-sm);margin-left:.4rem}
.badge.ok{background:var(--color-good-soft);color:var(--color-good)} .badge.no{background:var(--color-bad-soft);color:var(--color-bad)}

.hidden{display:none!important}
.foot{max-width:1080px;margin:0 auto;padding:1.4rem 1.1rem 2.4rem;color:var(--color-muted);font-size:.78rem;text-align:center;line-height:1.7;border-top:1px solid var(--color-rule)}
.foot-brand{display:inline-block;margin:.6rem 0 .2rem;opacity:.8;transition:opacity var(--dur-short) var(--ease-out)}
.foot-brand:hover{opacity:1}
.foot-brand img{height:34px;width:auto;display:block}
.foot-brand .logo-dark{display:none}
[data-theme="dark"] .foot-brand .logo-light{display:none}
[data-theme="dark"] .foot-brand .logo-dark{display:block}

@media(max-width:820px){
  .grid-3,.frame{grid-template-columns:1fr}
  .guide-layout{grid-template-columns:1fr}
  .toc{position:static;max-height:none;display:flex;flex-wrap:wrap;gap:.2rem}
  .toc a{font-size:.8rem;padding:.3rem .5rem;border-left:0;border-bottom:2px solid transparent}
  .toc a.active{border-bottom-color:var(--color-accent)}
  .brand h1{font-size:.98rem}
  .hero{padding:1.5rem 1.2rem}
}

/* ============ Dashboard ============ */
.dash-head{display:flex;justify-content:space-between;align-items:center;gap:1rem}
.dash-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin:.7rem 0 1.1rem}
.dash-tile{border-top:2px solid var(--color-ink);padding:.7rem .1rem 0;text-align:left;display:flex;flex-direction:column;gap:.15rem;background:transparent;border-left:0;border-right:0;border-bottom:0;border-radius:0}
.dash-big{font-family:var(--font-display);font-size:1.9rem;font-weight:600;color:var(--color-ink);line-height:1.1}
.dash-tile span:last-child{font-size:.76rem;color:var(--color-muted)}
.verdict{font-weight:600;padding:.7rem .9rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--color-accent-soft);border-left:3px solid var(--color-accent);color:var(--color-ink-2)}
.verdict.pass{background:var(--color-good-soft);border-color:var(--color-good);color:var(--color-ink)}
.verdict.fail{background:var(--color-warn-soft);border-color:var(--color-warn);color:var(--color-ink)}
.verdict.ok{background:var(--color-accent-soft);border-color:var(--color-accent)}
.weak-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.2rem;margin:.9rem 0}
.weak-wrap h4{margin:.2rem 0;font-size:1rem}
.weak-list{list-style:none;margin:0;padding:0}
.weak-list li{display:flex;align-items:center;gap:.5rem;padding:.4rem .1rem;border-bottom:1px solid var(--color-rule);font-size:.9rem}
.weak-list li span{flex:1;min-width:0}
.weak-list li b{font-weight:700}
.weak-list li b.ok{color:var(--color-good)} .weak-list li b.no{color:var(--color-bad)}
.weak-list li small{color:var(--color-muted);width:42px;text-align:right;font-variant-numeric:tabular-nums}

/* ============ Mock exam ============ */
.exam-rules{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin:1.1rem 0}
.exam-rules .rule{border-top:2px solid var(--color-ink);padding:.7rem .1rem 0;text-align:left;display:flex;flex-direction:column;gap:.15rem;background:transparent;border-left:0;border-right:0;border-bottom:0;border-radius:0}
.exam-rules .rule b{font-family:var(--font-display);font-size:1.7rem;font-weight:600;color:var(--color-ink);line-height:1.1}
.exam-rules .rule span{font-size:.76rem;color:var(--color-muted)}
.mock-bar{position:sticky;top:70px;z-index:20;display:flex;align-items:center;gap:1rem;flex-wrap:wrap;background:var(--color-paper-2);border:1px solid var(--color-rule);border-radius:var(--radius);padding:.7rem 1rem;box-shadow:var(--shadow-float);margin-bottom:1.1rem}
.mock-bar .counter{font-weight:700}
.timer{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;font-size:1.1rem;color:var(--color-ink);background:var(--color-paper-3);padding:.28rem .7rem;border-radius:var(--radius-sm)}
.timer.low{color:var(--color-paper-2);background:var(--color-bad);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.6}}
@media (prefers-reduced-motion: reduce){.timer.low{animation:none}}
.mock-bar .answered{color:var(--color-muted);font-size:.85rem;margin-left:auto}
.mock-layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:1.2rem;align-items:start}
.mock-q .controls{margin-top:1.1rem;margin-bottom:0}
.flag-btn.on{background:var(--color-warn);border-color:var(--color-warn);color:var(--color-paper-2)}
.navigator{background:var(--color-paper-2);border:1px solid var(--color-rule);border-radius:var(--radius);padding:.9rem;position:sticky;top:136px}
.navigator h4{margin:.1rem 0 .6rem;font-size:1rem}
.nav-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:.35rem}
.nav-cell{border:1px solid var(--color-rule-strong);background:var(--color-paper-2);border-radius:var(--radius-sm);padding:.38rem 0;font-size:.76rem;font-weight:600;font-family:var(--font-mono);cursor:pointer;color:var(--color-muted);transition:border-color var(--dur-short) var(--ease-out),color var(--dur-short) var(--ease-out)}
.nav-cell:hover{border-color:var(--color-ink);color:var(--color-ink)}
.nav-cell.answered{background:var(--color-accent-soft);color:var(--color-accent-deep);border-color:transparent}
.nav-cell.flagged{background:var(--color-warn-soft);border-color:var(--color-warn);color:var(--color-ink-2)}
.nav-cell.current{outline:2px solid var(--color-focus);outline-offset:0}
.nav-legend{display:flex;flex-wrap:wrap;gap:.5rem 1rem;margin-top:.8rem;font-size:.72rem;color:var(--color-muted)}
.nav-legend .dot{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:.25rem;vertical-align:middle;border:1px solid var(--color-rule)}
.dot.answered{background:var(--color-accent-soft);border-color:transparent}
.dot.flagged{background:var(--color-warn-soft);border-color:var(--color-warn)}
.dot.current{background:var(--color-paper-2);outline:2px solid var(--color-focus)}

table.bd{width:100%;border-collapse:collapse;font-size:.9rem;margin-top:.5rem}
table.bd th,table.bd td{border:1px solid var(--color-rule);padding:.5rem .65rem;text-align:left}
table.bd th{background:var(--color-paper-3);font-weight:700}
table.bd td.ok{color:var(--color-good);font-weight:700}
table.bd td.no{color:var(--color-bad);font-weight:700}

/* ============ Glossary ============ */
input[type=search],input[type=email],textarea{border:1px solid var(--color-rule-strong);border-radius:var(--radius-sm);background:var(--color-paper-2);color:var(--color-ink);font-family:inherit}
input[type=search]{flex:1;min-width:220px;padding:.55rem .8rem;font-size:.95rem}
input[type=search]:focus{outline:2px solid var(--color-focus);outline-offset:1px}
.gloss-card{padding:0}
.gloss-item{padding:.85rem 1.2rem;border-bottom:1px solid var(--color-rule)}
.gloss-item:last-child{border-bottom:0}
.gloss-term{font-weight:600;font-family:var(--font-display);font-size:1.02rem}
.gloss-group{font-size:.74rem;font-weight:600;color:var(--color-accent-deep);margin-left:.5rem}
.gloss-def{color:var(--color-ink-2);font-size:.92rem;margin-top:.25rem}

@media(max-width:820px){
  .dash-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .exam-rules{grid-template-columns:repeat(2,minmax(0,1fr))}
  .weak-wrap{grid-template-columns:1fr}
  .mock-layout{grid-template-columns:1fr}
  .navigator{position:static}
  .nav-grid{grid-template-columns:repeat(10,minmax(0,1fr))}
  .mock-bar{top:0}
}

/* ============ Reward loop — quiet, no confetti ============ */
.streak{font-size:.86rem;font-weight:700;color:var(--color-accent-deep);white-space:nowrap;min-width:0}
.streak.bump{animation:streakBump .4s var(--ease-out)}
@keyframes streakBump{40%{transform:scale(1.18)}}
.opt.correct{animation:none}
/* .confetti-p retained as a no-op for any cached JS; renders nothing */
.confetti-p{display:none}
@media (prefers-reduced-motion: reduce){.streak.bump{animation:none}}

/* ============ Visual lessons ============ */
.lesson-visual{margin:1rem 0 1.4rem;border:1px solid var(--color-rule);border-radius:var(--radius);overflow:hidden;background:var(--color-header)}
.lesson-visual img{display:block;width:100%;height:auto}
.lesson-visual figcaption{padding:.7rem 1rem;font-size:.88rem;line-height:1.55;color:var(--color-header-muted);background:var(--color-header);border-top:1px solid var(--color-header-rule)}
.lesson-visual figcaption::before{content:"Remember it: ";font-weight:700;color:var(--color-accent)}

/* ============ Onboarding overlay ============ */
.onboard-overlay{position:fixed;inset:0;background:oklch(15% 0.03 258 / 0.55);backdrop-filter:blur(3px);z-index:100;display:flex;align-items:center;justify-content:center;padding:1rem}
.onboard-card{background:var(--color-paper-2);border:1px solid var(--color-rule);border-top:3px solid var(--color-accent);border-radius:var(--radius);box-shadow:var(--shadow-float);max-width:580px;width:100%;padding:1.6rem 1.8rem;max-height:88vh;overflow:auto}
.ob-steps{padding-left:1.2rem;margin:.8rem 0}
.ob-steps li{margin:.55rem 0;font-size:.93rem;color:var(--color-ink-2);line-height:1.55}
.ob-steps b{color:var(--color-ink)}
.ob-tip{font-size:.82rem;color:var(--color-muted);border-top:1px solid var(--color-rule);padding-top:.8rem;margin-top:1rem}

/* ============ Flashcard action buttons ============ */
.btn.ok-btn.is-known{background:var(--color-good);border-color:var(--color-good);color:var(--color-paper-2)}
.btn.fav-btn.is-fav{background:var(--color-accent-deep);border-color:var(--color-accent-deep);color:var(--color-paper-2)}

/* ============ Auth/legal shared bits ============ */
[data-theme="dark"] #buy-block{border-top-color:var(--color-rule)!important}
.login-msg.err,.contact-msg.err{color:var(--color-bad)}
.login-msg.ok,.contact-msg.ok{color:var(--color-good)}