/* Doom Scroll STAAR, Grade 5. White, system type, hairlines, three colors:
   gold for Reading, blue for Revising and Editing, green for Writing. */
:root{
  --bg:#FFFFFF;--bg2:#F5F5F7;--bg3:#EBEBEE;--ink:#1D1D1F;--ink2:#6E6E73;--ink3:#AEAEB2;--line:#E5E5EA;--line2:#D1D1D6;
  --gold:#E4A62A;--gold-soft:#FBF0D4;--gold-deep:#B8862B;
  --blue:#2484AC;--blue-soft:#E3F1F7;--blue-deep:#1D6A8A;
  --green:#78A018;--green-soft:#E4EFC6;--green-deep:#5F7E15;
  --ok:#34A853;--ok-soft:#E6F6EA;--red:#D9534F;--red-soft:#FDECEC;--amber:#E4A62A;--amber-soft:#FBF0D4;
  --r:22px;--r2:16px;--r3:12px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue",Inter,system-ui,sans-serif;
  --ease:cubic-bezier(.2,.8,.2,1);--sat:env(safe-area-inset-top,0px);--sab:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box}
html{height:100%;-webkit-text-size-adjust:100%}
body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.4;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}
[hidden]{display:none !important}
button{font:inherit;color:inherit;background:none;border:0;padding:0;margin:0;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button:focus-visible,textarea:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
textarea,input{font:inherit}
h1,h2,h3,p{margin:0}
u{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.gold{--c:var(--gold);--c-soft:var(--gold-soft);--c-deep:var(--gold-deep)}
.blue{--c:var(--blue);--c-soft:var(--blue-soft);--c-deep:var(--blue-deep)}
.green{--c:var(--green);--c-soft:var(--green-soft);--c-deep:var(--green-deep)}

#app{max-width:560px;margin:0 auto;min-height:100dvh;padding:calc(10px + var(--sat)) 20px calc(96px + var(--sab))}
.screen{animation:fade .25s var(--ease) both}
@keyframes fadein{from{opacity:0}to{opacity:1}}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.08);opacity:1}100%{transform:scale(1)}}
@keyframes pulse{0%{transform:scale(1);opacity:.5}100%{transform:scale(1.9);opacity:0}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.in{animation:rise .4s var(--ease) both}
.in.d1{animation-delay:.08s}.in.d2{animation-delay:.16s}.in.d3{animation-delay:.24s}.in.d4{animation-delay:.32s}

/* type */
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2)}
.muted{color:var(--ink2)}
.small{font-size:14px}
.big-title{font-size:34px;font-weight:800;letter-spacing:-.9px;line-height:1.05}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 22px;border-radius:50px;background:var(--ink);color:#fff;font-weight:700;font-size:17px;transition:transform .12s var(--ease),opacity .2s}
.btn.c{background:var(--c,var(--ink))}
.btn.soft{background:var(--bg2);color:var(--ink)}
.btn.sm{min-height:40px;padding:0 16px;font-size:15px}
.btn.block{width:100%}
.btn:active{transform:scale(.97)}
.btn:disabled{opacity:.3;cursor:default;transform:none}
.btn svg{width:18px;height:18px}
.iconbtn{width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--bg2);color:var(--ink);flex-shrink:0}
.iconbtn svg{width:20px;height:20px}
.iconbtn:active{transform:scale(.94)}
.chev{width:16px;height:16px;color:var(--ink3);flex-shrink:0}
.tag{display:inline-flex;align-items:center;font-size:12px;font-weight:700;padding:4px 9px;border-radius:50px;background:var(--bg2);color:var(--ink2)}
.tag.c{background:var(--c-soft);color:var(--c-deep)}

/* ── onboarding ─────────────────────────────────────────────────────── */
.hero{padding:56px 0 20px}
.hero .mark{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:20px;background:var(--ink);color:#fff;margin-bottom:20px}
.hero .mark svg{width:32px;height:32px}
.hero h1{font-size:40px;font-weight:800;letter-spacing:-1.2px;line-height:1.02}
.hero h1 em{font-style:normal;font-weight:400;color:var(--ink2)}
.hero p{font-size:18px;color:var(--ink2);margin-top:12px;max-width:32ch}
.field{margin-top:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink2);margin-bottom:6px}
.field input{width:100%;height:52px;border-radius:14px;border:1px solid var(--line2);background:#fff;padding:0 14px;font-size:17px}
.swatches{display:flex;gap:10px;margin-top:8px}
.swatches button{width:34px;height:34px;border-radius:50%;border:3px solid transparent;transition:transform .15s var(--ease)}
.swatches button.on{border-color:var(--ink);transform:scale(1.1)}

/* ── home ───────────────────────────────────────────────────────────── */
.hello{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:6px 0 14px}
.hello h1{font-size:34px;font-weight:800;letter-spacing:-.9px}
.hello h1 small{display:block;font-size:14px;font-weight:600;color:var(--ink2);letter-spacing:0;margin-top:2px}
.avatar{width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;flex-shrink:0}
.stories{display:flex;gap:14px;overflow-x:auto;padding:4px 20px 14px;scrollbar-width:none;margin:0 -20px}
.stories::-webkit-scrollbar{display:none}
.story-b{flex:0 0 auto;width:72px;display:flex;flex-direction:column;align-items:center;gap:6px}
.story-b .ring{width:66px;height:66px;border-radius:50%;padding:3px;background:conic-gradient(from 200deg,var(--gold),var(--blue),var(--green),var(--gold))}
.story-b.started .ring{background:var(--c)}
.story-b.done .ring{background:var(--line2)}
.story-b .ring i{display:flex;align-items:center;justify-content:center;width:100%;height:100%;border-radius:50%;background:#fff;border:2.5px solid #fff;color:var(--c,var(--ink))}
.story-b .ring i svg{width:26px;height:26px}
.story-b.today .ring{background:var(--ink)}
.story-b.today .ring i{background:var(--ink);color:#fff;border-color:var(--ink)}
.story-b span{font-size:11.5px;font-weight:600;color:var(--ink);text-align:center;max-width:72px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.secbig{display:grid;grid-template-columns:48px 1fr auto;gap:14px;align-items:center;width:100%;text-align:left;padding:18px;border-radius:var(--r);background:var(--c-soft);margin-top:10px;transition:transform .12s var(--ease)}
.secbig:active{transform:scale(.985)}
.secbig .ico{width:48px;height:48px;border-radius:15px;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center}
.secbig .ico svg{width:24px;height:24px}
.secbig b{display:block;font-size:19px;font-weight:800;letter-spacing:-.3px}
.secbig small{display:block;font-size:13.5px;color:var(--ink2);margin-top:2px}
.secbig .bar{width:64px;height:6px;border-radius:3px;background:rgba(0,0,0,.08);overflow:hidden}
.secbig .bar i{display:block;height:100%;background:var(--c);border-radius:3px}
.cont{margin-top:18px;background:var(--ink);color:#fff;border-radius:var(--r);padding:20px}
.cont .eyebrow{color:rgba(255,255,255,.6)}
.cont h2{font-size:22px;font-weight:800;letter-spacing:-.4px;margin-top:4px}
.cont p{color:rgba(255,255,255,.75);font-size:15px;margin-top:4px}
.cont .btn{margin-top:14px;background:#fff;color:var(--ink)}

/* grouped lists */
.group{margin-top:22px}
.group .gh{font-size:13px;font-weight:700;color:var(--ink2);text-transform:uppercase;letter-spacing:.04em;padding:0 4px 8px}
.list{background:var(--bg2);border-radius:var(--r2);overflow:hidden}
.rowk{display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;width:100%;padding:13px 14px;text-align:left;position:relative}
.rowk + .rowk::before{content:'';position:absolute;left:66px;right:0;top:0;height:1px;background:var(--line)}
.rowk:active{background:var(--bg3)}
.rowk .ico{width:40px;height:40px;border-radius:12px;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center}
.rowk .ico svg{width:20px;height:20px}
.rowk b{display:block;font-size:16px;font-weight:600}
.rowk small{display:block;font-size:12.5px;color:var(--ink2);margin-top:1px}
.dots4{display:flex;gap:4px;align-items:center;margin-right:6px}
.dots4 i{width:7px;height:7px;border-radius:50%;background:var(--line2)}
.dots4 i.on{background:var(--c)}
.rowk .right{display:flex;align-items:center}

/* ── skill page ─────────────────────────────────────────────────────── */
.topnav{display:flex;align-items:center;justify-content:space-between;min-height:48px;margin-bottom:8px}
.skillhead h1{font-size:34px;font-weight:800;letter-spacing:-.9px;line-height:1.05}
.skillhead .kid{margin-top:8px;font-size:17px;color:var(--ink2);line-height:1.45;max-width:36ch}
.skillhead .tags{display:flex;gap:8px;margin-top:12px}
.steps2{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.step2{display:grid;grid-template-columns:52px 1fr auto;gap:14px;align-items:center;width:100%;padding:14px;border-radius:var(--r2);background:var(--bg2);text-align:left;transition:transform .12s var(--ease)}
.step2:active{transform:scale(.985)}
.step2 .n{width:52px;height:52px;border-radius:16px;background:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;color:var(--c);box-shadow:inset 0 0 0 1px var(--line)}
.step2 .n svg{width:22px;height:22px}
.step2.done .n{background:var(--c);color:#fff;box-shadow:none}
.step2.locked{opacity:.45}
.step2.locked .n{color:var(--ink3)}
.step2 b{display:block;font-size:17px;font-weight:700}
.step2 small{display:block;font-size:13.5px;color:var(--ink2);margin-top:2px}
.step2.next{box-shadow:inset 0 0 0 2px var(--c)}

/* ── lesson ─────────────────────────────────────────────────────────── */
.lesson{position:fixed;inset:0;z-index:50;background:var(--bg);overflow-y:auto}
.lesson > .in{max-width:560px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;padding:calc(10px + var(--sat)) 20px calc(16px + var(--sab));animation:none}
.lhead{display:flex;align-items:center;gap:10px;min-height:44px}
.lhead .dots{flex:1;display:flex;gap:4px;justify-content:center}
.lhead .dots i{width:6px;height:6px;border-radius:50%;background:var(--line2);transition:all .3s var(--ease)}
.lhead .dots i.on{background:var(--c);width:20px;border-radius:3px}
.lhead .dots i.was{background:var(--c);opacity:.45}
.slide{flex:1;display:flex;flex-direction:column;padding:12px 0 18px}
.scene{position:relative;height:200px;border-radius:var(--r);background:var(--c-soft);display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:22px;flex-shrink:0}
.scene.short{height:120px;margin-bottom:16px}
.scene .orb{position:relative;width:96px;height:96px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;color:var(--c);box-shadow:0 14px 40px -18px rgba(0,0,0,.35);animation:float 3.6s ease-in-out infinite}
.scene.short .orb{width:68px;height:68px}
.scene .orb svg{width:46px;height:46px}
.scene.short .orb svg{width:32px;height:32px}
.scene .orb::before{content:'';position:absolute;inset:-6px;border-radius:50%;border:2px solid var(--c);opacity:0;animation:pulse 2.4s ease-out infinite}
.scene .fan{position:relative;width:240px;height:150px}
.scene .fan div{position:absolute;left:0;right:0;top:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;font-size:13px;line-height:1.35;font-weight:600;box-shadow:0 10px 30px -18px rgba(0,0,0,.4);animation:fadein .5s var(--ease) both}
.scene .fan div:nth-child(1){transform:rotate(-5deg) translate(-12px,10px);animation-delay:.05s}
.scene .fan div:nth-child(2){transform:rotate(2deg) translate(8px,28px);animation-delay:.2s}
.scene .fan div:nth-child(3){transform:rotate(-1deg) translate(0,50px);animation-delay:.35s}
.scene .hand{font-size:0}
.slide h2{font-size:clamp(26px,7vw,34px);font-weight:800;letter-spacing:-.8px;line-height:1.08;text-wrap:balance}
.slide h2 em{font-style:normal;color:var(--c-deep)}
.slide p.lead{font-size:19px;line-height:1.45;color:var(--ink2);margin-top:12px;max-width:34ch}
.slide p.lead mark{background:var(--c-soft);color:var(--ink);border-radius:5px;padding:0 4px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.slide .q{font-size:19px;font-weight:700;line-height:1.35;margin-top:4px}
.slide .hint{font-size:14px;color:var(--ink2);margin-top:6px}
.model{margin-top:14px;background:var(--bg2);border-radius:var(--r2);padding:16px}
.model .t{font-size:17px;line-height:1.5;font-style:italic}
.model ol{margin:12px 0 0;padding:0;list-style:none;counter-reset:s}
.model li{counter-increment:s;position:relative;padding:11px 0 11px 38px;border-top:1px solid var(--line);font-size:15.5px;line-height:1.45;animation:rise .35s var(--ease) both}
.model li::before{content:counter(s);position:absolute;left:0;top:10px;width:26px;height:26px;border-radius:50%;background:var(--c);color:#fff;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.model li.hid{display:none}
.stems{margin-top:14px}
.stems .st{background:var(--bg2);border-radius:var(--r3);padding:12px 14px;font-size:15.5px;line-height:1.4;margin-top:8px;animation:rise .4s var(--ease) both}
.stems .st:nth-child(2){animation-delay:.1s}.stems .st:nth-child(3){animation-delay:.2s}
/* sentence animation */
.stage{margin-top:14px;background:var(--bg2);border-radius:var(--r2);padding:18px 16px;min-height:150px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.stage .line{display:flex;flex-wrap:wrap;gap:4px 5px;font-size:18px;line-height:1.5;font-weight:600}
.stage .tok{padding:1px 5px;border-radius:7px;background:#fff;color:var(--ink);transition:all .5s var(--ease);box-shadow:inset 0 0 0 1px var(--line)}
.stage .tok.p{padding:1px 3px;box-shadow:none;background:transparent}
.stage .tok.red{background:var(--red-soft);color:#9a2a27;box-shadow:inset 0 0 0 1.5px var(--red)}
.stage .tok.out{opacity:0;transform:scale(.6);width:0;padding:0;margin:0;overflow:hidden}
.stage .tok.amber{background:var(--amber-soft);color:#7a5a0e;box-shadow:inset 0 0 0 1.5px var(--amber);animation:pop .5s var(--ease) both}
.stage .tok.green{background:var(--ok-soft);color:#1e6b36;box-shadow:inset 0 0 0 1.5px var(--ok)}
.stage .cap{font-size:14.5px;color:var(--ink2);line-height:1.45;min-height:20px}
.stage .cap b{color:var(--ink)}
.stage .ctl{display:flex;gap:8px}
.stage .ctl button{font-size:13px;font-weight:700;padding:8px 12px;border-radius:50px;background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
/* checks */
.opts{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.opt{display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:start;text-align:left;padding:14px;border-radius:var(--r2);background:var(--bg2);border:1.5px solid transparent;font-size:17px;line-height:1.35;transition:border-color .15s,background .15s,transform .15s}
.opt .l{width:28px;height:28px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line2);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.opt.on{border-color:var(--c);background:#fff}
.opt.ok{border-color:var(--ok);background:#fff;animation:pop .35s var(--ease)}
.opt.ok .l{background:var(--ok);color:#fff;box-shadow:none}
.opt.no{opacity:.5}
.opt.no .l{background:var(--line);box-shadow:none}
.opt small{display:block;font-size:13px;color:var(--ink2);margin-top:4px}
.taptext{margin-top:14px;background:var(--bg2);border-radius:var(--r2);padding:16px;font-size:18px;line-height:1.75}
.taptext .w{border-radius:6px;padding:2px 2px;cursor:pointer;transition:background .15s}
.taptext .w.on{background:var(--c-soft)}
.taptext .w.ok{background:var(--ok-soft);box-shadow:inset 0 0 0 1.5px var(--ok)}
.sort{margin-top:14px}
.sort .bk{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:10px}
.sort .bk b{display:block;text-align:center;font-size:13px;font-weight:700;padding:9px;border-radius:10px;background:var(--c-soft);color:var(--c-deep)}
.sort .it{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:12px 14px;border-radius:var(--r3);background:var(--bg2);margin-top:8px;font-size:16px;line-height:1.35;transition:transform .3s var(--ease)}
.sort .it .bs{display:flex;gap:6px}
.sort .it .bs button{width:38px;height:32px;border-radius:9px;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line2);font-size:12px;font-weight:800}
.sort .it .bs button.on{background:var(--c);color:#fff;box-shadow:none}
.sort .it.ok{box-shadow:inset 0 0 0 1.5px var(--ok);background:#fff}
.order{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.order .it{display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:center;text-align:left;padding:13px 14px;border-radius:var(--r3);background:var(--bg2);font-size:16px;line-height:1.35}
.order .it .l{width:28px;height:28px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line2);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.order .it.ok{background:#fff;box-shadow:inset 0 0 0 1.5px var(--ok)}
.order .it.ok .l{background:var(--ok);color:#fff;box-shadow:none}
.typein{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.typein input,.typein textarea{width:100%;min-height:52px;border-radius:14px;border:1px solid var(--line2);background:#fff;padding:12px 14px;font-size:17px;line-height:1.4}
.typein .acc{font-size:14.5px;color:var(--ink2);background:var(--bg2);border-radius:var(--r3);padding:10px 12px}
.typein .acc b{color:var(--ink)}
.say{margin-top:12px;padding:12px 14px;border-radius:var(--r3);background:var(--bg2);font-size:15.5px;line-height:1.45;animation:rise .3s var(--ease) both}
.say.ok{background:var(--ok-soft)}
.say.try{background:var(--amber-soft)}
.move{margin-top:8px;background:var(--ink);color:#fff;border-radius:var(--r);padding:24px}
.move .eyebrow{color:rgba(255,255,255,.6)}
.move h2{color:#fff;margin-top:6px}
.move p{color:rgba(255,255,255,.85);font-size:17px;margin-top:10px;line-height:1.45}
.lfoot{display:flex;gap:10px;padding-top:12px}
.lfoot .btn{flex:1}

/* ── practice ───────────────────────────────────────────────────────── */
.practice{position:fixed;inset:0;z-index:50;background:var(--bg);overflow-y:auto}
.practice > .in{max-width:560px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;padding:calc(10px + var(--sat)) 20px calc(16px + var(--sab));animation:none}
.phead{display:flex;align-items:center;gap:10px;min-height:44px}
.phead .prog{flex:1;display:flex;gap:4px}
.phead .prog i{flex:1;height:5px;border-radius:3px;background:var(--line2)}
.phead .prog i.on{background:var(--c)}
.phead .prog i.now{background:var(--c);opacity:.4}
.phead .lbl{font-size:13px;font-weight:700;color:var(--ink2);white-space:nowrap}
.qcard{flex:1;display:flex;flex-direction:column;padding:14px 0 84px;animation:rise .35s var(--ease) both}
.qcard .from{font-size:13px;font-weight:600;color:var(--ink2);margin-bottom:8px}
.text{background:var(--bg2);border-radius:var(--r2);padding:14px 16px 10px;font-size:16px;line-height:1.6;max-height:34vh;overflow-y:auto;margin-bottom:14px}
.text .para{margin:0 0 12px}
.text .pnum{display:block;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--ink3);margin-bottom:3px}
.text .para.feature{background:#fff;border:1px dashed var(--line2);border-radius:10px;padding:10px 12px}
.text .para.lines .sent{display:block;margin-bottom:4px}
.text .snum{font-size:11px;color:var(--ink3);font-weight:700;margin-right:4px;vertical-align:super}
.text .sent.hit{background:var(--amber-soft);border-radius:5px}
.text .more{display:block;width:100%;margin:2px 0 6px;padding:10px;border-radius:10px;background:#fff;font-size:14px;font-weight:600;color:var(--blue)}
.stemq{font-size:20px;font-weight:700;line-height:1.35;letter-spacing:-.2px;margin-bottom:14px}
.stemq u{text-decoration-color:var(--c)}
.choices{display:flex;flex-direction:column;gap:8px}
.choice{display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:start;text-align:left;padding:14px;border-radius:var(--r2);background:var(--bg2);border:1.5px solid transparent;font-size:17px;line-height:1.35;transition:border-color .15s,background .15s}
.choice .lt{width:28px;height:28px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line2);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.choice.on{border-color:var(--c);background:#fff}
.choice.tried{opacity:.45}
.choice.correct{border-color:var(--ok);background:#fff;animation:pop .35s var(--ease)}
.choice.correct .lt{background:var(--ok);color:#fff;box-shadow:none}
.choice:disabled{cursor:default}
.fb{margin-top:14px;padding:16px;border-radius:var(--r2);background:var(--bg2);animation:rise .3s var(--ease) both}
.fb.ok{background:var(--ok-soft)}
.fb.try{background:var(--amber-soft)}
.fb b{display:block;font-size:17px;font-weight:800;margin-bottom:4px}
.fb p{font-size:15.5px;line-height:1.45}
.fb .pts{display:inline-block;margin-top:8px;font-size:12.5px;font-weight:700;background:#fff;border-radius:50px;padding:4px 10px}
.pfoot{display:flex;gap:10px;padding-top:12px;position:sticky;bottom:calc(8px + var(--sab))}
.pfoot .btn{flex:1}
.prompt{background:var(--bg2);border-radius:var(--r2);padding:16px;font-size:16px;line-height:1.5;margin-bottom:14px}
.prompt .rel{display:block;font-size:12.5px;color:var(--ink2);margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
textarea.exp{width:100%;min-height:120px;border-radius:14px;border:1px solid var(--line2);padding:12px 14px;font-size:17px;line-height:1.45;resize:vertical;background:#fff}
textarea.exp.big{min-height:220px}
.wordcount{font-size:12.5px;color:var(--ink2);text-align:right;margin-top:4px;font-variant-numeric:tabular-nums}
.checks{display:flex;flex-direction:column;gap:7px;margin-top:10px}
.checks div{display:grid;grid-template-columns:24px 1fr;gap:10px;align-items:start;font-size:15.5px;line-height:1.4}
.checks i{width:22px;height:22px;border-radius:50%;background:var(--line);display:flex;align-items:center;justify-content:center;color:#fff}
.checks i svg{width:13px;height:13px}
.checks div.on i{background:var(--ok)}
.exemplar{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r3);padding:12px 14px;font-size:15px;line-height:1.5}
.exemplar b{display:block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);margin-bottom:4px}
.wstep{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.wstep > b{display:block;font-size:17px;font-weight:700}
.wstep > small{display:block;font-size:14px;color:var(--ink2);margin-top:2px;margin-bottom:10px}
.wstep.locked{opacity:.75}
.taptext.pat{margin-top:0}
.text.tapping .sent{cursor:pointer;border-radius:5px}
.text .sent.tapped{background:var(--c-soft)}
.picked{font-size:14px;color:var(--ink2);margin-top:8px}
.picked q{color:var(--ink);font-style:italic;display:block;margin-top:4px}

/* done */
.done{flex:1;display:flex;flex-direction:column;justify-content:center;text-align:center;padding:20px 0;animation:rise .4s var(--ease) both}
.done .ring{position:relative;width:132px;height:132px;margin:0 auto 18px}
.done .ring svg{width:132px;height:132px;transform:rotate(-90deg)}
.done .ring .track{fill:none;stroke:var(--line);stroke-width:10}
.done .ring .fill{fill:none;stroke:var(--c);stroke-width:10;stroke-linecap:round;stroke-dasharray:364;stroke-dashoffset:364;transition:stroke-dashoffset 1.1s var(--ease)}
.done .ring .num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;font-size:30px;letter-spacing:-.8px}
.done .ring .num small{font-size:12px;font-weight:600;color:var(--ink2)}
.done h1{font-size:30px;font-weight:800;letter-spacing:-.7px}
.done h1 em{font-style:normal;color:var(--c-deep)}
.done p{color:var(--ink2);margin-top:8px;font-size:16px}
.done .acts{display:flex;flex-direction:column;gap:10px;margin-top:22px}

/* tab bar */
.nav{position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-top:1px solid var(--line);padding-bottom:var(--sab)}
.nav > .in{max-width:560px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);height:54px;animation:none}
.nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10.5px;font-weight:600;color:var(--ink3)}
.nav button svg{width:24px;height:24px}
.nav button.on{color:var(--ink)}
.toast{position:fixed;left:50%;bottom:calc(100px + var(--sab));transform:translate(-50%,16px);background:var(--ink);color:#fff;font-size:14px;font-weight:600;padding:10px 16px;border-radius:50px;opacity:0;transition:opacity .25s,transform .25s var(--ease);z-index:70;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media (min-width:700px){#app{padding-top:28px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms !important;animation-delay:0s !important;transition-duration:.01ms !important}}
/* answer plus proof */
.proofline{margin-top:12px;padding:12px 14px;border-radius:12px;background:var(--c-soft);font-size:15px;font-weight:600;color:var(--c-deep);display:flex;gap:10px;align-items:center;animation:rise .3s var(--ease) both}
.proofline svg{width:20px;height:20px;flex-shrink:0}
.slowbar{margin:0 0 12px;padding:10px 14px;border-radius:12px;background:var(--ink);color:#fff;font-size:14.5px;font-weight:600;animation:rise .3s var(--ease) both}
.coach{display:flex;gap:10px;align-items:center;padding:12px 14px;border-radius:12px;background:var(--bg2);font-size:14.5px;line-height:1.4;color:var(--ink2);margin-bottom:12px}
.coach svg{width:18px;height:18px;flex-shrink:0;color:var(--c)}
.commit{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.commit button{padding:15px 10px;border-radius:var(--r2);background:var(--bg2);font-size:16px;font-weight:700;border:1.5px solid transparent;transition:border-color .15s,background .15s}
.commit button.on{border-color:var(--c);background:#fff}
.commit button:disabled:not(.on){opacity:.4}
.rules{margin-top:14px;animation:rise .3s var(--ease) both}
.rules .lbl2{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);margin-bottom:6px}
.chip{display:block;width:100%;text-align:left;padding:12px 14px;border-radius:12px;background:var(--bg2);font-size:15px;line-height:1.4;margin-top:8px;border:1.5px solid transparent;transition:border-color .15s,background .15s}
.chip.on{border-color:var(--c);background:#fff}
.chip.tried{opacity:.45}
.chip.ok{border-color:var(--ok);background:#fff}
.note{font-size:13.5px;color:var(--ink2);margin-top:14px;padding:0 4px}
.stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:16px}
.stats div{background:var(--bg2);border-radius:var(--r2);padding:14px 12px;text-align:center}
.stats b{display:block;font-size:22px;font-weight:800;letter-spacing:-.4px}
.stats small{display:block;font-size:12px;color:var(--ink2);margin-top:2px;line-height:1.3}
.text.tapping{box-shadow:inset 0 0 0 1.5px var(--c)}
/* organizers: thinking made visible */
.org{margin-top:6px}
.rail{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.rail span{font-size:11.5px;font-weight:700;letter-spacing:.02em;padding:4px 9px;border-radius:50px;background:var(--bg2);color:var(--ink3)}
.rail span.was{background:var(--c-soft);color:var(--c-deep)}
.rail span.on{background:var(--c);color:#fff}
.step-eyebrow{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--c-deep)}
.step-title{font-size:21px;font-weight:800;letter-spacing:-.3px;line-height:1.25;margin-top:4px}
.step-hint{font-size:15px;line-height:1.45;color:var(--ink2);margin:6px 0 12px}
.starter{display:inline-block;font-size:14.5px;font-weight:700;color:var(--c-deep);background:var(--c-soft);border-radius:8px;padding:5px 10px;margin:6px 0 6px}
.org-in{width:100%;font:inherit;font-size:17px;line-height:1.45;padding:14px;border-radius:var(--r2);border:1.5px solid var(--line2);background:#fff;resize:vertical;min-height:64px}
.org-in.big{min-height:120px}
.org-in.review{min-height:180px;font-size:16px}
.org-in:focus{outline:none;border-color:var(--c)}
.picked-s{padding:14px;border-radius:var(--r2);background:var(--c-soft);font-size:16px;line-height:1.45;font-style:italic;color:var(--ink)}
.picked-s.empty{font-style:normal;color:var(--ink2);background:var(--bg2);border:1.5px dashed var(--line2)}
.chips{display:grid;gap:8px;margin-top:4px}
.chips .chip{margin-top:0}
.chips .chip b{display:block;font-weight:700}
.chips .chip small{display:block;font-size:13px;color:var(--ink2);margin-top:2px;line-height:1.35}
.chips.small .chip{padding:10px 12px}
.chips.tiny{grid-template-columns:1fr 1fr;gap:6px;margin-bottom:6px}
.chips.tiny .chip{padding:8px 10px;font-size:13.5px;font-weight:600}
.slots{display:grid;gap:8px}
.slots label{display:grid;grid-template-columns:84px 1fr;align-items:center;gap:10px}
.slots label span{font-size:13px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--ink2)}
.slots input{width:100%;font:inherit;font-size:16px;padding:11px 12px;border-radius:12px;border:1.5px solid var(--line2);background:#fff}
.slots input:focus{outline:none;border-color:var(--c)}
.boxit{display:grid;gap:8px}
.pline{text-align:left;padding:12px 14px;border-radius:12px;background:var(--bg2);font-size:15.5px;line-height:1.45;border:1.5px solid transparent}
.pline.on{border-color:var(--c);background:#fff}
.kwline{font-size:19px;line-height:1.9;font-weight:600}
.kw{font:inherit;padding:2px 5px;border-radius:7px;background:transparent}
.kw.on{background:var(--c-soft);color:var(--c-deep);box-shadow:inset 0 0 0 1.5px var(--c)}
.kwcount{font-size:13px;color:var(--ink2);margin-top:6px}
.tchart{border:1.5px solid var(--line);border-radius:var(--r2);overflow:hidden}
.tchart .th{display:grid;grid-template-columns:1fr 1fr;font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--ink2);background:var(--bg2);padding:8px 12px}
.tchart .tr{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line)}
.tchart .te{padding:10px 12px;font-size:14px;line-height:1.4;font-style:italic;border-right:1px solid var(--line)}
.tchart .tr.empty .te{font-style:normal;color:var(--ink3)}
.tchart textarea{font:inherit;font-size:14px;line-height:1.4;padding:10px 12px;border:0;resize:none;background:#fff;min-height:64px}
.tchart textarea:focus{outline:none;background:var(--c-soft)}
.plan .pl-h{font-size:13px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--ink2);margin:12px 0 8px}
.rows{display:grid;gap:8px}
.rowpick{display:grid;grid-template-columns:54px 1fr;gap:10px;align-items:start;text-align:left;padding:12px;border-radius:12px;background:var(--bg2);border:1.5px solid transparent;font-size:14px;line-height:1.4}
.rowpick .tag{font-size:12px;font-weight:800;color:var(--ink2);background:#fff;border-radius:8px;padding:4px 6px;text-align:center}
.rowpick.on{border-color:var(--c);background:#fff}
.rowpick.on .tag{background:var(--c);color:#fff}
.rowpick small{display:block;color:var(--ink2);margin-top:3px;font-style:normal}
.builder .bf{padding:12px 0;border-top:1px solid var(--line)}
.builder .bf:first-child{border-top:0;padding-top:0}
.bf-h{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700;flex-wrap:wrap;margin-bottom:6px}
.bf-h i{width:24px;height:24px;border-radius:50%;background:var(--c);color:#fff;font-style:normal;font-size:12px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
.bf-h small{width:100%;font-size:13px;color:var(--ink2);font-weight:500}
.builder textarea{width:100%;font:inherit;font-size:15.5px;line-height:1.45;padding:12px;border-radius:12px;border:1.5px solid var(--line2);background:#fff;resize:vertical;margin-bottom:6px}
.builder textarea:focus{outline:none;border-color:var(--c)}
.builder .quote{padding:12px;border-radius:12px;background:var(--c-soft);font-size:15px;line-height:1.45;font-style:italic}
.build{margin-top:14px;padding:14px;border-radius:var(--r2);background:#fff;border:1.5px solid var(--line);font-size:15px;line-height:1.5;color:var(--ink2)}
.build b{display:block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);margin-bottom:6px}
.org .say{margin-top:12px}
.fold{border:1.5px solid var(--line);border-radius:var(--r2);margin-bottom:12px;background:#fff}
.fold summary{list-style:none;cursor:pointer;padding:12px 14px;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:space-between}
.fold summary::-webkit-details-marker{display:none}
.fold summary::after{content:'';width:8px;height:8px;border-right:2px solid var(--ink3);border-bottom:2px solid var(--ink3);transform:rotate(45deg);transition:transform .2s}
.fold[open] summary::after{transform:rotate(-135deg)}
.fold .prompt,.fold .text{margin:0 10px 10px;border-radius:12px}
.fold .text{max-height:40vh}
/* grades */
.grades{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.gradeb{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:18px 16px;border-radius:var(--r);background:var(--bg2);border:1.5px solid transparent;text-align:left}
.gradeb b{font-size:26px;font-weight:800;letter-spacing:-.5px}
.gradeb span{font-size:14px;color:var(--ink2)}
.gradeb:active{border-color:var(--ink)}
/* select two, two-part, inline choice */
.hint2{font-size:14px;color:var(--ink2);margin:-6px 0 10px}
.choices.multi .lt{border-radius:8px}
.part{margin-top:6px}
.plabel{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--c-deep);margin:10px 0 4px}
.inline-s{font-size:18px;line-height:2;padding:14px;border-radius:var(--r2);background:var(--bg2);margin-bottom:10px}
.blank{font:inherit;font-weight:700;padding:2px 10px;border-radius:8px;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line2);color:var(--ink3);margin:0 2px}
.blank.on{box-shadow:inset 0 0 0 2px var(--c)}
.blank.filled{color:var(--ink)}
.blank.correct{box-shadow:inset 0 0 0 2px var(--ok);color:var(--ink)}
.blank-opts .lbl2{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);margin-bottom:6px}
.chips.row{display:flex;flex-wrap:wrap;gap:8px}
.chips.row .chip{width:auto;display:inline-block;margin:0;padding:10px 14px}
.chip.tried{opacity:.4}
/* the Check bar covers what scrolls under it, and a waiting Check is solid, not see-through */
.pfoot{background:linear-gradient(to bottom,rgba(255,255,255,0),var(--bg) 22px);padding-bottom:6px}
.pfoot .btn:disabled{opacity:1;background:#e8e6e1;color:#9b978f}

/* The STAAR ECR prompt box: the whole prompt in print order, at the top of the ECR path. */
.pbox{margin-bottom:12px}
.staar{border:1.5px solid var(--ink);border-radius:var(--r3);background:#fff;padding:0 0 6px}
.staar-h{display:flex;justify-content:space-between;align-items:baseline;gap:4px 10px;flex-wrap:wrap;padding:10px 14px 4px;font-size:13px;color:var(--ink2)}
.staar-h b{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink)}
.staar-h span{color:var(--c-deep);font-weight:700}
.staar-b{padding:2px 8px 4px;font-size:15.5px;line-height:1.5}
.staar .sb{position:relative;padding:7px 8px;margin:4px 0;border-radius:10px;border:1.5px solid transparent}
.staar .sb ul{margin:3px 0 0;padding-left:22px}
.staar .sb li{margin:1px 0}
.staar.boxing .sb.tapb{cursor:pointer;background:var(--bg2);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;min-height:44px;margin:6px 0}
.staar.boxing .sb.tapb.on{border-color:var(--c);background:var(--c-soft)}
.staar .sb.boxed{border:2px solid var(--ink);padding:14px 10px 10px;margin:14px 0 8px}
.staar .sb .tick{position:absolute;top:-11px;left:10px;background:var(--ink);color:#fff;font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:3px 9px;border-radius:50px;line-height:1.2}
.staar .sb.dim{opacity:.55}
.staar.kwmode .sb-prompt{line-height:2.45}
.staar .sb-prompt .kw{font:inherit;line-height:1.3;padding:6px 5px;margin:2px 0;border-radius:8px;background:var(--bg2);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
.staar .sb-prompt .kw.on{background:var(--c-soft);color:var(--c-deep);box-shadow:inset 0 0 0 1.5px var(--c);font-weight:700}
.staar .sb-prompt mark{background:var(--c-soft);color:var(--c-deep);font-weight:700;border-radius:4px;padding:0 2px}
.staar-more{display:block;margin:0 14px 4px;font-size:14px;font-weight:700;color:var(--c-deep);padding:10px 0}
.relnote{font-size:12.5px;color:var(--ink2);margin:-4px 2px 12px;line-height:1.4}
.kwpicked{display:flex;flex-wrap:wrap;gap:6px;min-height:30px;align-items:center}
.kwpicked .pill{background:var(--c-soft);color:var(--c-deep);font-weight:700;border-radius:50px;padding:4px 11px;font-size:14px}
/* Tappable units: one whole sentence (or one poem line) each; a date or sign-off sits on its own line. */
.text .sent.head{display:block;font-weight:600;margin-bottom:4px}
.text.tapping .sent{-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;padding:2px 0}
.text.tapping .para.lines .sent{padding:3px 0}
.taptext .w,.taptext .s{-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
/* Lesson tap checks: words (big enough for a thumb), whole sentences, or poem lines. */
.taptext.by-word{line-height:2.15}
.taptext .w{padding:5px 3px}
.taptext .pl{color:var(--ink3)}
.taptext .s{border-radius:6px;padding:3px 1px;cursor:pointer;transition:background .15s;-webkit-box-decoration-break:clone;box-decoration-break:clone;border-bottom:1.5px dotted var(--line2)}
.taptext.by-line .s{display:block;padding:9px 10px;margin:3px -6px;border-bottom:0;background:#fff;border-radius:10px}
.taptext .s.on{background:var(--c-soft)}
.taptext .s.ok{background:var(--ok-soft);box-shadow:inset 0 0 0 1.5px var(--ok);border-bottom-color:transparent}
.staar-h span.try{color:var(--ink);background:var(--amber-soft);border-radius:8px;padding:6px 9px;font-weight:600;line-height:1.35;width:100%}

/* The STAAR-shaped sample item on the lesson's stem slide */
.staar{background:#fff;border:1.5px solid var(--line2,var(--line));border-radius:var(--r2);padding:14px 16px 12px;box-shadow:3px 3px 0 var(--bg3,var(--bg2))}
.staar-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:10px}
.staar-num{font-weight:800;font-size:13px;letter-spacing:.06em;text-transform:uppercase}
.staar-src{font-size:12.5px;color:var(--ink2)}
.staar-stem{font-size:16.5px;line-height:1.45;font-weight:600;margin:0 0 10px}
.staar-dir{font-size:14px;color:var(--ink2);margin:-4px 0 10px}
.staar-part{margin-top:10px}.staar-part+.staar-part{border-top:1px dashed var(--line);padding-top:10px}
.staar-pl{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);margin-bottom:4px}
.staar-ch{display:flex;flex-direction:column;gap:6px}
.staar-o{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;padding:9px 10px;border:1.5px solid var(--line);border-radius:10px;font-size:15.5px;line-height:1.4;background:var(--bg2)}
.staar-o .l{width:26px;height:26px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line2,var(--line));display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:800}
.staar-note{font-size:12.5px;color:var(--ink2);margin-top:10px}
.stems-more{margin-top:14px}.stems-more summary{cursor:pointer;font-weight:700;font-size:14px}.stems-more .stems{margin-top:8px}