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22px;border-radius:12px;opacity:.45;pointer-events:none;transition:opacity .2s}.adcont.ready{opacity:1;pointer-events:auto;background:linear-gradient(135deg,var(--amber),var(--amber-dk))}.pwsheet{width:100%;max-width:480px;background:var(--card);border-radius:24px 24px 0 0;padding:22px 20px calc(26px + var(--safe-bot));box-shadow:var(--shadow-lg);animation:pwUp .34s cubic-bezier(.2,.8,.3,1) both}@keyframes pwUp{from{transform:translateY(100%)}to{transform:none}}.pwsheet .grip{width:40px;height:4px;border-radius:99px;background:var(--line);margin:0 auto 14px}.pwcrown{font-size:42px;text-align:center;margin:2px 0 6px;filter:drop-shadow(0 4px 10px rgba(244,160,18,.4))}.pwtitle{font-size:21px;font-weight:800;text-align:center;color:var(--text);margin-bottom:6px}.pwsub{font-size:13px;color:var(--muted);text-align:center;line-height:1.5;margin-bottom:16px;padding:0 6px}.perks{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}.perk{display:flex;align-items:center;gap:11px;font-size:14px;font-weight:600;color:var(--text)}.perk .pk{width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:rgba(31,158,107,.16);color:var(--green);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:900}.subbtn{width:100%;border:none;border-radius:15px;padding:16px;font-size:16px;font-weight:800;color:#1a1205;background:linear-gradient(135deg,#ffc24b,#f4a012);box-shadow:0 8px 22px rgba(244,160,18,.4);cursor:pointer;transition:transform .12s,filter .12s}.subbtn:active{transform:scale(.97)}.subbtn:hover{filter:brightness(1.05)}.codewrap{margin-top:16px;border-top:1px solid var(--line);padding-top:16px}.codelbl{font-size:12px;color:var(--muted);text-align:center;margin-bottom:9px;font-weight:600}.codrow{display:flex;gap:8px}.codinput{flex:1;min-width:0;border:1.5px solid var(--line);background:var(--card-2);border-radius:12px;padding:13px 14px;font-size:15px;color:var(--text);outline:0;font-family:var(--font);transition:border-color .15s}.codinput:focus{border-color:var(--amber)}.codbtn{border:none;border-radius:12px;padding:0 20px;font-size:14px;font-weight:700;color:#fff;background:var(--navy);cursor:pointer;transition:transform .12s}.codbtn:active{transform:scale(.95)}.pwlater{display:block;width:100%;text-align:center;margin-top:14px;background:0 0;border:none;color:var(--muted);font-size:14px;font-weight:600;padding:6px;cursor:pointer}.pmbadge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--amber),var(--amber-dk));padding:4px 11px;border-radius:99px}[data-theme=dark] .adbox{background:linear-gradient(135deg,#1a2740,#0c1830)}@media (prefers-reduced-motion:reduce){.adcard,.ovl,.pwsheet{animation:none}}@media (min-width:1180px){body{background:radial-gradient(1100px 700px at 50% -10%,rgba(244,160,18,.1),transparent 60%),radial-gradient(900px 700px at 50% 120%,rgba(19,49,92,.12),transparent 55%),var(--bg)}#app{box-shadow:0 0 0 1px var(--line),0 36px 90px rgba(11,37,69,.2);min-height:100vh}.bottomnav{box-shadow:0 0 0 1px var(--line),0 -10px 30px rgba(11,37,69,.12)}}*{-webkit-tap-highlight-color:transparent}button{touch-action:manipulation}.policy{font-size:13px;line-height:1.6}.policy p{margin:0 0 9px;color:var(--muted)}.policy h4{margin:14px 0 4px;font-size:13px;color:var(--amber-dk)}.policy a{color:var(--navy);word-break:break-word}.cbx{position:fixed;inset:0;z-index:1300;background:rgba(8,16,28,.55);display:flex;align-items:center;justify-content:center;padding:24px;animation:cbxIn .2s ease both}@keyframes cbxIn{from{opacity:0}to{opacity:1}}.cbox{width:100%;max-width:330px;background:var(--card);border-radius:18px;padding:22px 20px;text-align:center;box-shadow:var(--shadow-lg);animation:cboxUp .25s cubic-bezier(.2,.8,.3,1) both}@keyframes cboxUp{from{transform:translateY(12px) scale(.97);opacity:0}to{transform:none;opacity:1}}.cbi{font-size:34px;margin-bottom:8px}.cbt{font-size:15px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:18px}.cbtns{display:flex;gap:10px}.cbtns button{flex:1;border:none;border-radius:12px;padding:13px;font-size:15px;font-weight:800;cursor:pointer;font-family:var(--font);transition:transform .1s,filter .12s}.cbtns button:active{transform:scale(.96)}.cno{background:var(--card-2);color:var(--text);border:1.5px solid var(--line)!important}.cyes{background:linear-gradient(135deg,#ff6b5e,#e23b2e);color:#fff}.cyes:hover{filter:brightness(1.05)}body.web-practice-page{padding-top:0}.practice-sitebar{position:sticky;top:0;z-index:10050;background:#071a31;color:#fff;border-bottom:3px solid var(--amber);min-height:50px;display:flex;align-items:center;justify-content:center}.practice-sitebar .inner{width:min(100%,900px);padding:7px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px}.practice-sitebar a{color:#fff;text-decoration:none;font-weight:800;font-size:13px;min-height:36px;display:inline-flex;align-items:center;padding:0 10px;border-radius:8px}.practice-sitebar .home-link{background:var(--amber);color:#142033}.practice-sitebar .guide-link{border:1px solid rgba(255,255,255,.35)}.practice-intro{max-width:900px;margin:0 auto;padding:24px 18px 12px;color:var(--text)}.practice-intro h1{font-family:var(--serif);font-size:clamp(30px,7vw,48px);line-height:1.08;color:var(--navy);margin:0 0 12px}.practice-intro>p{font-size:16px;line-height:1.65;color:var(--muted);margin:0 0 12px}.practice-intro-links{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}.practice-intro-links a{background:var(--card);border:1px solid var(--line);border-radius:999px;color:var(--navy);font-size:13px;font-weight:750;text-decoration:none;padding:8px 12px}.practice-intro details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin:14px 0 6px;padding:0 16px}.practice-intro summary{cursor:pointer;font-weight:800;color:var(--navy);padding:14px 0}.practice-intro details p{line-height:1.65;color:var(--muted)}.practice-intro details h2{font-family:var(--serif);font-size:23px;color:var(--navy);margin:22px 0 8px}.practice-intro .start-jump{display:inline-flex;background:var(--navy);color:#fff;text-decoration:none;font-weight:850;padding:11px 16px;border-radius:10px;margin:4px 0 10px}body.web-practice-page .topbar{top:50px}body.web-practice-page #app{scroll-margin-top:110px}.practice-noscript{max-width:700px;margin:20px auto;padding:18px;background:#fff2cf;border:1px solid #e6bd58;border-radius:12px}@media(max-width:520px){.practice-sitebar .inner{padding:6px 8px}.practice-sitebar a{font-size:12px;padding:0 8px}.practice-sitebar .guide-link{display:none}.practice-intro{padding:20px 14px 8px}.practice-intro h1{font-size:34px}body.web-practice-page .topbar{top:50px}}body.web-practice-page:not(.practice-active) #nav{display:none}body.web-practice-page:not(.practice-active) #app .topbar{position:relative;top:0}body,html{width:100%;max-width:100%;min-width:0;overflow-x:hidden}body.web-practice-page{min-height:100%;overflow-wrap:anywhere}#app{width:100%;max-width:760px;min-width:0}#app *,.practice-intro *,.practice-sitebar *{min-width:0}canvas,img,svg,video{max-width:100%}.screen{width:100%}.topbar .brand{min-width:0;flex:1}.topbar .brand>span:last-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.practice-intro,.practice-sitebar .inner{width:min(100%,960px)}.practice-intro-links{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin;padding-bottom:4px}.practice-intro-links a{flex:0 0 auto}.practice-loader-card{text-align:center;max-width:620px;margin:20px auto}.practice-loader-card h2{margin:4px 0 8px;color:var(--text)}.practice-loader-card p{color:var(--muted)}.loader-spin{width:34px;height:34px;margin:4px auto 12px;border:4px solid var(--line);border-top-color:var(--amber);border-radius:50%;animation:sp .75s linear infinite}html[data-theme=dark] body{color:var(--text)}html[data-theme=dark] .policy a,html[data-theme=dark] .practice-intro h1,html[data-theme=dark] .practice-intro h2,html[data-theme=dark] .practice-intro summary,html[data-theme=dark] .practice-intro-links a{color:#dceaff}html[data-theme=dark] .practice-intro .start-jump{background:#244d7d;color:#fff;border:1px solid #4f78a8}html[data-theme=dark] .practice-intro details,html[data-theme=dark] .practice-intro-links a{background:#121d2c;border-color:#31445e}html[data-theme=dark] .practice-intro details p,html[data-theme=dark] .practice-intro>p{color:#b7c4d4}html[data-theme=dark] .sect-title{color:#b3c0d0}html[data-theme=dark] .cnm b,html[data-theme=dark] .ol b,html[data-theme=dark] .reviewitem .q,html[data-theme=dark] .setrow .info b,html[data-theme=dark] .sheet h3,html[data-theme=dark] .srow .lbl b,html[data-theme=dark] .study-q .qt,html[data-theme=dark] .tile h3{color:#eef3f8}html[data-theme=dark] .timer{color:#eef3f8}html[data-theme=dark] .feedback .exp,html[data-theme=dark] .qtext{color:#eef3f8}html[data-theme=dark] .card,html[data-theme=dark] .reviewitem,html[data-theme=dark] .setrow,html[data-theme=dark] .sheet,html[data-theme=dark] .study-q,html[data-theme=dark] .tile{color:#e8edf3}html[data-theme=dark] .ol span,html[data-theme=dark] .reviewitem .meta,html[data-theme=dark] .setrow .info span,html[data-theme=dark] .srow .lbl span,html[data-theme=dark] .study-q .meta,html[data-theme=dark] .tile p{color:#aebdce}html[data-theme=dark] a:not(.start-jump):not(.home-link):not(.guide-link){color:#9fc8ff}html[data-theme=dark] .practice-noscript{background:#362a12;color:#fff1c9;border-color:#8b6d24}@media (min-width:760px){#app{max-width:960px}.bottomnav{max-width:960px}.screen{padding:22px 24px 118px}.grid{grid-template-columns:repeat(4,minmax(0,1fr))}.feedback,.nextbtn,.qcard,.qhead,.ring-wrap,.rstats{max-width:760px;margin-left:auto;margin-right:auto}.qcard{min-height:260px}.sheet{max-width:700px}}@media (min-width:1180px){#app{max-width:1040px}.bottomnav{max-width:1040px}.practice-intro,.practice-sitebar .inner{width:min(100%,1040px)}}@media (max-width:759px){#app{max-width:none}.screen{padding:13px 12px 104px}.card{padding:15px;border-radius:16px}.qcard{padding:17px;min-height:0;border-radius:18px}.qtext{font-size:clamp(15px,4.4vw,18px);line-height:1.55}[dir=rtl] .qtext{font-size:clamp(17px,5vw,20px);line-height:1.85}.tfbtns{gap:9px;margin-top:14px}.tf{padding:14px 6px;border-radius:15px}.hero .row{gap:8px}.stat{padding:10px 5px}.stat b{font-size:21px}.topbar{padding-left:12px;padding-right:10px}.topbar .brand{gap:8px;font-size:14px}.topbar .logo{width:32px;height:32px;flex:0 0 32px}#streakPill{flex:0 0 auto;padding:0 8px}.practice-intro{padding:17px 13px 8px}.practice-intro h1{font-size:clamp(28px,9vw,38px);line-height:1.04}.practice-intro>p{font-size:15px;line-height:1.55}.practice-intro .practice-secondary{font-size:14px}.practice-intro-links{margin:12px -2px;padding:0 2px 6px}.practice-intro .start-jump{width:100%;justify-content:center;text-align:center;margin-top:0}.practice-intro details{padding:0 13px}.practice-intro summary{line-height:1.35}.practice-intro details h2{font-size:20px}.bottomnav button{font-size:9px;padding-left:2px;padding-right:2px}.bottomnav button .ic{font-size:18px}.rstats{gap:6px}.rstats .b{padding:9px 4px}.rstats .b b{font-size:18px}.figbox.img .inner{max-width:100%}.figbox.img img{max-height:min(38vh,240px)}}@media (max-width:420px){.qhead{gap:7px}.timer{font-size:13px;padding:5px 7px}.qcount{font-size:12px}}@media (max-width:350px){.grid{grid-template-columns:1fr}.tile.wide{grid-column:auto}.practice-sitebar .home-link{font-size:11px}.practice-intro .practice-secondary{display:none}.hero h2{font-size:18px}}
/* Keyboard focus — shared accessibility treatment. */
:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{outline:3px solid #1160a6;outline-offset:3px;border-radius:4px}
.practice-sitebar a:focus-visible{outline-color:#ffd06b}
.practice-skip{position:absolute;inset-inline-start:-9999px;top:8px;z-index:1000;background:#fff;color:#062b4f;padding:10px 14px;border-radius:6px;font-weight:800}
.practice-skip:focus{inset-inline-start:12px;outline:3px solid #1160a6;outline-offset:2px}

/* Layout correction v4 — keep related-guide links fully visible on narrow screens. */
@media(max-width:759px){
  .practice-intro-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible;margin:12px 0;padding:0;gap:8px}
  .practice-intro-links a{min-width:0;white-space:normal;text-align:center;display:flex;align-items:center;justify-content:center;line-height:1.25;padding:9px 8px}
}
@media(max-width:430px){
  .practice-intro-links{grid-template-columns:minmax(0,1fr)}
  .practice-intro h1{font-size:clamp(30px,9.5vw,36px)}
}


/* Days 8–14: simplified question experience */
.wording-panel{max-width:720px;margin:10px auto 12px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:0 4px 18px rgba(11,37,69,.08)}
.wording-copy{min-width:0}.wording-copy strong{display:block;color:var(--navy);font-size:14px}.wording-copy span{display:block;margin-top:2px;color:var(--muted);font-size:11px;line-height:1.4}
.wording-buttons{display:inline-flex;flex:0 0 auto;padding:3px;border:1px solid var(--line);border-radius:11px;background:var(--bg)}
.wording-buttons button{min-height:36px;padding:0 11px;border:0;border-radius:8px;background:transparent;color:var(--muted);font:800 12px/1 system-ui,sans-serif;cursor:pointer}
.wording-buttons button.on{background:var(--navy);color:#fff;box-shadow:0 2px 8px rgba(11,37,69,.18)}
.wording-buttons button:disabled{opacity:.48;cursor:not-allowed}
.question-support-actions{display:flex;justify-content:flex-end;margin:10px 0 0}
.question-report-link{display:inline-flex;align-items:center;min-height:34px;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--muted);font:750 11px/1.2 system-ui,sans-serif;text-decoration:none}
.question-report-link::before{content:"?";display:grid;place-items:center;width:18px;height:18px;margin-inline-end:6px;border-radius:50%;background:var(--amber-pale);color:#744700;font-weight:900}
.question-report-link:hover{border-color:var(--navy);color:var(--navy)}
.qcard{border:1px solid var(--line);box-shadow:0 10px 30px rgba(11,37,69,.08)}
.qtext{font-size:clamp(19px,4.8vw,24px);line-height:1.52;font-weight:720;letter-spacing:-.01em}
.tfbtns{gap:12px}.tf{min-height:68px;border-width:2px}.tf .sym{font-size:25px}
.feedback .exp{font-size:15px;line-height:1.65}
.study-q .qt{font-size:17px;line-height:1.55}.study-q .ex{line-height:1.65}
@media(max-width:620px){
  .wording-panel{margin:8px 10px 10px;padding:11px;align-items:stretch;flex-direction:column;gap:9px}
  .wording-buttons{display:grid;grid-template-columns:1fr 1fr;width:100%}
  .wording-buttons button{min-height:42px;font-size:13px}
  .qcard{padding:18px 15px}.qtext{font-size:20px;line-height:1.5}
  .tfbtns{grid-template-columns:1fr 1fr}.tf{min-height:64px;padding:10px 6px}
  .question-support-actions{justify-content:flex-start}
}
@media(prefers-reduced-motion:reduce){.wording-buttons button,.question-report-link{transition:none}}

/* Clean practice UI: no level/XP, daily-goal, or embedded ad area. */
.screen>.sect-title:first-of-type{margin-top:18px}

/* Pre-deployment practice layout and accessibility safeguards. */
body.web-practice-page{--practice-sitebar-height:59px}
.practice-sitebar{height:var(--practice-sitebar-height);min-height:var(--practice-sitebar-height)}
.practice-sitebar .inner{padding-block:6px}
body.web-practice-page .topbar{top:var(--practice-sitebar-height)}
body.web-practice-page #app{scroll-margin-top:calc(var(--practice-sitebar-height) + 12px)}
.practice-study-guide{padding-top:36px;padding-bottom:calc(96px + var(--safe-bot));border-top:1px solid var(--line)}

/* Keep frequently used controls at or above the 44px touch-target baseline. */
.practice-sitebar a,
.practice-intro-links a,
.practice-intro .start-jump,
.iconbtn,
.back,
.seg button,
.chip,
.toggles button,
.bottomnav button,
.lang-opt,
.opt-row,
.contact-opt,
.adcont,
.codbtn,
.pwlater,
.cbtns button,
.wording-buttons button,
.question-report-link{min-height:44px}
.iconbtn{width:44px;height:44px}
#streakPill{height:44px;min-height:44px}
.qfav{min-width:44px;min-height:44px;display:grid;place-items:center}
.switch{width:58px;height:44px;border-radius:24px}
.switch i{top:7px;left:7px;width:30px;height:30px}
.switch.on i{left:21px}
[dir=rtl] .switch i{left:auto;right:7px}
[dir=rtl] .switch.on i{right:21px}

@media(max-width:520px){
  .practice-sitebar .inner{padding-block:6px}
  body.web-practice-page .topbar{top:var(--practice-sitebar-height)}
}