/* ════════════════════════════════════════════════════════════
   Julio Fernández Prada · C1 tools · shared design system
   Used by every tool page (c1-email, c1-essay, ...).
   Light theme. Cobalt main, coral highlight.
   Shapes: panels 14px, buttons and chips full pill.
   Presentation rule: every .screen fits one landscape screen
   (designed at 1280x720). Type scales with viewport height.
   ════════════════════════════════════════════════════════════ */
:root{
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --ink:#18181B;
  --ink-2:#4B4B53;
  --ink-3:#6B6B74;
  --line:#E4E2DC;
  --line-2:#CFCDC6;
  --accent:#2B45C6;
  --accent-ink:#1C2F8F;
  --accent-soft:#E9EDFB;
  --coral:#F25A38;
  --coral-ink:#B83A1F;
  --coral-soft:#FFE3DB;
  --coral-wash:#FFF3EE;
  --cobalt-wash:#EEF1FC;
  --rule:#D8DEF5;
  --pen:#26265a;
  --shadow:0 1px 2px rgba(24,24,40,.05),0 8px 24px -12px rgba(24,24,60,.18);
  --r:14px;
  --nav:56px;
  --sans:"Geist",ui-sans-serif,system-ui,sans-serif;
  --mono:"Geist Mono",ui-monospace,monospace;
  --hand:"Kalam",cursive;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{font-size:clamp(13px,1.05vh + .42vw + 2px,20px);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:1.05rem;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1400px;margin:0 auto;padding:0 clamp(16px,3.5vw,56px)}
h1,h2,h3,h4{letter-spacing:-.025em;line-height:1.08;font-weight:700}
h2{font-size:2.3rem;margin-bottom:.35em}
h3{font-size:1.3rem;letter-spacing:-.015em;margin-bottom:.35em}
p{max-width:68ch}
.lead{font-size:1.08em;color:var(--ink-2)}
.muted{color:var(--ink-3)}
.mono{font-family:var(--mono);font-weight:600;letter-spacing:-.01em}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.14em;color:var(--coral-ink);margin-bottom:1rem}
em.hl{font-style:normal;color:var(--coral)}
.coral{color:var(--coral-ink)}

/* ─── Screens: one section = one projected screen ─────────── */
.screen{min-height:100vh;min-height:100dvh;padding:calc(var(--nav) + 3vh) 0 3.5vh;display:flex;flex-direction:column;justify-content:center;position:relative}
.screen.flow{display:block;padding-bottom:0}
.screen.tint-coral{background:var(--coral-wash)}
.screen.tint-cobalt{background:var(--cobalt-wash)}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:2.4rem;margin-bottom:2.4vh}
.head-row h2{margin-bottom:.15em}
.head-row .lead{max-width:46ch;flex:0 1 46ch}
.head-side{display:flex;align-items:flex-end;gap:1.2rem}

/* ─── Icon badges ─────────────────────────────────────────── */
.badge{width:2.6rem;height:2.6rem;border-radius:12px;display:inline-grid;place-items:center;font-size:1.4rem;flex:none;background:var(--accent-soft);color:var(--accent)}
.badge.coral{background:var(--coral-soft);color:var(--coral-ink)}
.badge.lg{width:3.2rem;height:3.2rem;font-size:1.75rem;border-radius:14px}

/* ─── Buttons ─────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:.55em;white-space:nowrap;border-radius:999px;padding:.62em 1.25em;font-weight:600;font-size:.88em;transition:transform .15s ease,background .15s ease,border-color .15s ease}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-ink)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:var(--coral-ink)}
.btn-ghost{border:1.5px solid var(--line-2);background:var(--surface);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-ink)}
.btn i{font-size:1.15em}

/* ─── Nav ─────────────────────────────────────────────────── */
.nav{position:fixed;inset:0 0 auto 0;height:var(--nav);z-index:50;background:rgba(247,246,242,.9);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{height:100%;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;letter-spacing:-.02em;white-space:nowrap;text-decoration:none;font-size:15px}
.brand i{color:var(--coral);font-size:20px}
.brand span{color:var(--ink-3);font-weight:500}
.nav-links{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{font-size:13px;font-weight:500;color:var(--ink-2);text-decoration:none;padding:6px 11px;border-radius:999px;white-space:nowrap;transition:background .15s,color .15s}
.nav-links a:hover{color:var(--ink);background:var(--surface)}
.nav-links a.on{color:var(--accent-ink);background:var(--accent-soft)}

/* ─── Mascot (drawn face, see tool.js) ────────────────────── */
.mascot{display:inline-block;width:var(--m,96px);height:var(--m,96px);flex:none;line-height:0}
.mascot svg{width:100%;height:100%;overflow:visible}
.mascot .m-eyes{transform-box:fill-box;transform-origin:center}
.mascot .m-drop{transform-box:fill-box;transform-origin:top}
.mascot .m-pop{transform-origin:60px 70px}
.mascot .m-spark{transform-box:fill-box;transform-origin:center}

/* ─── Pen writing (see tool.js penWrite) ──────────────────── */
[data-pen]{display:block}
.pen-write{display:block;width:100%;height:100%;overflow:visible}
.pen-write .ink{fill:none;stroke:var(--pen);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}

/* ─── Hero ────────────────────────────────────────────────── */
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(32px,5vw,80px);align-items:center}
.hero h1{font-size:4.6rem;letter-spacing:-.045em;line-height:.98;margin-bottom:1.4rem}
.hero .lead{max-width:34ch;margin-bottom:2rem}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-art{position:relative}
.hero-art .mascot{position:absolute;top:-2.6rem;right:-1rem;--m:7rem;z-index:2}
.sheet{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);padding:1.8rem 2rem 1.2rem;position:relative;
  background-image:repeating-linear-gradient(to bottom,transparent 0 calc(2.4rem - 1px),var(--rule) calc(2.4rem - 1px) 2.4rem);background-position:0 calc(1.8rem + 2.4rem)}
.sheet::before{content:"";position:absolute;top:0;bottom:0;left:3.2rem;width:1.5px;background:#F4B9A9}
.fact{display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:1rem;padding-left:2rem;line-height:2.4rem}
.fact b{font-family:var(--mono);font-size:1.6rem;color:var(--accent);letter-spacing:-.04em;min-width:3.4ch}
.fact b i{color:var(--coral)}
.fact span{color:var(--ink-2);font-size:.95em;white-space:nowrap}
.sheet-head{font-family:var(--hand);font-size:1.25em;color:var(--ink-2);padding-left:2rem;line-height:2.4rem}
.sheet [data-pen]{margin:0 0 0 2rem;width:78%;height:2.4rem}

/* ─── Legibility ──────────────────────────────────────────── */
.legible-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:clamp(24px,5vw,72px);align-items:center}
.legible-head{font-size:4rem;letter-spacing:-.04em;line-height:1.02;margin-bottom:1.6rem}
.legible-head u{text-decoration-color:var(--coral);text-decoration-thickness:.09em;text-underline-offset:.12em}
.rule-callout{border:2px solid var(--ink);border-radius:var(--r);padding:1.2rem 1.4rem;background:var(--surface);display:grid;gap:.6em}
.hand-card{background:var(--surface);border-radius:var(--r);border:1px solid var(--line);padding:1.6rem;display:flex;flex-direction:column;gap:1rem;position:relative;box-shadow:var(--shadow)}
.hand-card .mascot{position:absolute;top:-2.8rem;right:1.2rem;--m:5.2rem}
.hand-card .label{font-size:.82rem;font-weight:600;color:var(--ink-3)}
.scrawl{font-family:"Zeyada",cursive;font-size:3.2rem;line-height:.72;color:#30305a;letter-spacing:-.14em;word-spacing:-.32em;padding:1rem 4px 1.5rem;filter:blur(.5px);user-select:none}
.scrawl span{display:inline-block;transform-origin:left bottom}
.hand-card .reveal-line{font-size:.95rem;color:var(--ink-2);min-height:1.6em}
.hand-card .btn{align-self:flex-start}

/* ─── Sticky card stack (21st cards-stack, vanilla) ───────── */
.stack-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(32px,5vw,80px)}
.stack-aside{position:sticky;top:calc(var(--nav) + 6vh);align-self:start}
.stack-aside .mascot{--m:8rem;margin-top:1.6rem}
.stack{position:relative;perspective:1000px}
.stack-anchor{height:0}
.stack-card{position:sticky;top:calc(var(--nav) + 24px + var(--i) * var(--inc,26px));transform:translateZ(calc(var(--i) * 10px));backface-visibility:hidden;margin-bottom:28px}
.stack-pad{height:30vh}
.crit{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--line);border-top:4px solid var(--c,var(--accent));padding:1.6rem 2rem 1.8rem;font-size:1.1em}
.crit h3{font-size:1.5rem;margin:0}
.crit-top{display:flex;align-items:center;gap:.9rem;margin-bottom:.3rem}
.crit-top .mono{margin-left:auto;color:var(--accent);font-size:1rem}
.crit .q{font-size:1.05em;color:var(--ink-2);margin-bottom:1rem}
.crit-cols{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.crit-cols h4{font-size:.78rem;font-weight:600;color:var(--ink-3);letter-spacing:0;margin-bottom:.4rem}
.crit-cols ul{list-style:none;display:grid;gap:.35rem;font-size:.92em}
.crit-cols li{position:relative;padding-left:26px}
.crit-cols li>i[class*="ph"]:first-child{position:absolute;left:0;top:.3em;color:var(--accent)}
.crit-cols .lose li>i[class*="ph"]:first-child{color:var(--coral)}

/* ─── Rubric ──────────────────────────────────────────────── */
.gate-line{display:flex;gap:10px;align-items:center;font-size:.92em;margin-top:.4rem}
.gate-line i{font-size:1.3rem;color:var(--coral)}
.rubric-wrap{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line);background:var(--surface)}
.rubric{border-collapse:collapse;width:100%;min-width:900px;font-size:.8rem;table-layout:fixed}
.rubric col.ccrit{width:12%}
.rubric col.c0{width:6%}
.rubric th,.rubric td{padding:5px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.rubric thead th{color:var(--ink-3);font-weight:600;background:#FBFAF7;padding:6px 12px}
.rubric thead th .mono{font-size:1.25rem;color:var(--accent)}
.rubric thead th.mid .mono{color:var(--coral-ink)}
.rubric tbody th{padding:8px 12px;font-size:1em}
.rubric tbody th small{display:block;font-weight:500;color:var(--ink-3);font-size:.82em;margin-top:2px}
.rubric tr:last-child th,.rubric tr:last-child td{border-bottom:0}
.band{display:block;width:100%;min-height:100%;text-align:left;padding:5px 9px;border-radius:10px;border:1.5px solid transparent;color:var(--ink-2);line-height:1.35;transition:background .15s,border-color .15s}
.band:hover{background:#F3F4FA;border-color:var(--line-2)}
.band[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink)}
.band.mid .lbl{color:var(--ink-3);font-style:italic}
.band .why{display:none}
.band.mid[aria-pressed="true"]{background:var(--coral-soft);border-color:var(--coral);color:var(--coral-ink)}
.band.mid[aria-pressed="true"] .lbl{display:none}
.band.mid[aria-pressed="true"] .why{display:block}
.rubric-foot{display:flex;gap:1.4rem;align-items:center;margin-top:2vh}
.rubric-foot .mascot{--m:4.6rem}
.score .mono{font-size:2.6rem;letter-spacing:-.05em;line-height:1}
.score small{display:block;font-size:.78rem;color:var(--ink-3);font-weight:600}
.hint{font-size:.9rem;color:var(--ink-2)}
.hint b{color:var(--ink)}

/* ─── 45-minute plan ──────────────────────────────────────── */
.plan-bar{display:grid;grid-template-columns:5fr 33fr 7fr;gap:6px;margin-top:4vh}
.plan-seg{border-radius:var(--r);padding:1rem 1rem;min-height:8.5rem;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.plan-seg .mono{font-size:2.3rem;letter-spacing:-.04em}
.plan-seg small{font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:6px}
.plan-seg>i{font-size:1.5rem}
.seg-plan{background:var(--accent-soft);color:var(--accent-ink)}
.seg-write{background:var(--accent);color:#fff}
.seg-write [data-pen]{position:absolute;right:1.4rem;bottom:.8rem;width:50%;height:4.6rem}
.seg-write .pen-write .ink{stroke:#fff;opacity:.9}
.seg-check{background:var(--coral);color:#fff}
.plan-detail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem;margin-top:1.5rem}
.plan-detail div{font-size:.95em;color:var(--ink-2)}
.plan-detail b{display:block;color:var(--ink);margin-bottom:4px}

/* ─── Anatomy ─────────────────────────────────────────────── */
.anatomy-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:clamp(24px,4vw,64px);align-items:start}
.seg-toggle{display:inline-flex;padding:4px;border-radius:999px;background:var(--surface);border:1px solid var(--line)}
.seg-toggle button{padding:.45em 1.1em;border-radius:999px;font-weight:600;font-size:.86em;color:var(--ink-2)}
.seg-toggle button[aria-pressed="true"]{background:var(--ink);color:#fff}
.letter{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);padding:0 1.6rem 1rem;display:grid;gap:.1rem;overflow:hidden}
.letter-bar{display:flex;align-items:center;gap:10px;margin:0 -1.6rem .4rem;padding:.55rem 1.6rem;background:#FBFAF7;border-bottom:1px solid var(--line);font-size:.8rem;color:var(--ink-3);font-weight:600}
.letter-bar i{color:var(--coral);font-size:1.1rem}
.part{display:grid;grid-template-columns:7.5rem 1fr;gap:1rem;align-items:baseline;padding:.28rem 0}
.part .tag{font-size:.76rem;font-weight:600;color:var(--ink-3)}
.part .tag b{font-family:var(--mono);color:var(--coral-ink);font-size:.82rem;margin-right:6px}
.part .txt{font-family:var(--hand);font-size:1.08em;line-height:1.35;color:var(--pen)}
.part .txt .note{font-family:var(--sans);font-size:.72em;color:var(--ink-3);margin-left:.5em}
.budget{display:grid;gap:.8rem}
.budget-row{display:grid;grid-template-columns:1fr auto;gap:12px;padding-bottom:.8rem;border-bottom:1px solid var(--line);font-size:.95em}
.budget-row:last-child{border-bottom:0}
.budget-row .mono{color:var(--accent)}

/* ─── Phrase bank ─────────────────────────────────────────── */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:3vh}
.tabs button{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--line-2);background:var(--surface);border-radius:999px;padding:.5em 1.1em;font-size:.9em;font-weight:600;color:var(--ink-2)}
.tabs button[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.phrases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.phrases p{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--coral);border-radius:12px;padding:1.1rem 1.2rem;font-size:1.1em;font-weight:500}
.phrases p small{display:block;color:var(--ink-3);font-size:.72em;font-weight:500;margin-top:4px}

/* ─── Exercises ───────────────────────────────────────────── */
.ex{background:var(--surface);border-radius:var(--r);border:1px solid var(--line);padding:2rem 2.4rem;box-shadow:var(--shadow)}
.ex-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:1.6rem}
.ex-title{display:flex;gap:1rem;align-items:flex-start}
.ex-head h2{font-size:2rem;margin-bottom:.2em}
.ex-head p{color:var(--ink-2)}
.ex-side{display:flex;align-items:center;gap:1rem}
.ex-side .mascot{--m:4.4rem}
.ex-num{font-family:var(--mono);color:var(--coral-ink);font-size:.9rem;display:block;margin-bottom:6px}
.pairs{display:grid}
.pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem;padding:.75rem 0;border-top:1px solid var(--line);align-items:baseline}
.pair:first-child{border-top:0}
.pair .from-txt{font-family:var(--hand);font-size:1.18em;color:var(--pen)}
.pair .to-txt{color:var(--accent-ink);font-weight:500;visibility:hidden}
.pair .to-txt::before{content:"\2192\00a0";color:var(--coral)}
.ex.revealed .pair .to-txt{visibility:visible}
.err-para{font-family:var(--hand);font-size:1.3em;line-height:2;color:var(--pen);max-width:none}
.err{border-radius:4px;padding:0 2px}
.ex.revealed .err{background:var(--coral-soft);text-decoration:line-through;text-decoration-color:var(--coral-ink)}
.err-fix{display:none;font-family:var(--sans);font-size:.68em;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);border-radius:999px;padding:1px 8px;margin:0 4px;vertical-align:.12em;white-space:nowrap}
.ex.revealed .err-fix{display:inline}
.err-para .tok{cursor:pointer;border-radius:4px;transition:background .15s}
.ex:not(.revealed) .err-para .tok:hover{background:var(--accent-soft)}
.ex.revealed .err-para .tok{cursor:default}
.err.found{background:var(--coral-soft);text-decoration:line-through;text-decoration-color:var(--coral-ink)}
.err.found+.err-fix{display:inline}
.err-para .tok.miss{background:#EFEEE9;animation:shake .4s ease}
@keyframes shake{20%,60%{transform:translateX(-3px)}40%,80%{transform:translateX(3px)}}
.err-para .tok{display:inline-block}
.err.found .tok,.ex.revealed .err .tok{text-decoration:line-through;text-decoration-color:var(--coral-ink)}
.err-count{display:flex;align-items:center;gap:8px;margin-top:.8rem;font-size:.95em;color:var(--ink-2)}
.err-count b{font-family:var(--mono);color:var(--accent);font-size:1.15em}
.answer-key{display:none;padding:.9rem 1.1rem;border-radius:12px;background:var(--accent-soft);color:var(--accent-ink);font-size:.92em}
.revealed .answer-key{display:block}
.ex .answer-key{margin-top:1.2rem}

/* clickable task sentences */
.sent{display:inline;text-align:left;padding:2px 4px;margin:0 -2px;border-radius:6px;line-height:1.7;transition:background .15s,box-shadow .15s}
.sent:hover{background:var(--accent-soft)}
.sent.picked{background:var(--coral-soft);box-shadow:inset 0 -2px 0 var(--coral)}
.revealed .sent.point{background:var(--accent-soft);box-shadow:inset 0 -2px 0 var(--accent)}
.revealed .sent.picked:not(.point){background:#F1F0EC;box-shadow:none;text-decoration:line-through;text-decoration-color:var(--ink-3)}

/* ─── Handwritten papers (model, sample) ──────────────────── */
.hand-paper{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);padding:1.4rem 1.8rem;font-family:var(--hand);font-size:1rem;line-height:1.55;color:var(--pen);columns:2;column-gap:2.4rem}
.hand-paper p{break-inside:avoid-column}
.hand-paper p+p{margin-top:.55em}
.hand-paper mark{background:transparent;color:inherit;border-radius:4px;transition:background .2s}
.hand-paper .n{display:none;font-family:var(--mono);font-size:.62em;font-weight:600;color:#fff;background:var(--coral);border-radius:999px;padding:0 7px;margin-right:4px;vertical-align:.25em}
.hand-paper.annotated mark{background:var(--coral-soft)}
.hand-paper.annotated .n{display:inline-block}
.wc{display:inline-flex;gap:8px;align-items:center;font-size:.82em;color:var(--ink-3);margin-top:.6rem;font-family:var(--sans)}

/* model answer + task strip */
.model-grid{display:grid;gap:1rem}
.model-grid.panel-off .side{display:none}
.model-grid.panel-off #modelPaper{font-size:1.12rem}
#modelPaper{columns:3;line-height:1.46}
.side{display:grid;grid-template-columns:auto minmax(0,1fr);gap:1.6rem;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.3rem;font-size:.88em}
.side .tabs{flex-direction:column;margin:0;gap:6px}
.side .tabs button{font-size:.85em;text-align:left}
#modelTask{columns:2;column-gap:2rem}
#modelTask .ctx{margin-bottom:.4rem;font-weight:600;color:var(--ink)}
.side .incoming{display:block;color:var(--ink-2)}
.side .incoming p+p{margin-top:.4em}
.notes{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem 1.4rem}
.notes li{display:grid;grid-template-columns:26px 1fr;gap:10px;color:var(--ink-2)}
.notes li b{color:var(--ink)}
.notes .n2{font-family:var(--mono);font-size:.74rem;font-weight:600;color:#fff;background:var(--coral);border-radius:999px;width:24px;height:24px;display:grid;place-items:center}
.toolbar{display:flex;gap:10px;align-items:center}
.toolbar .mascot{--m:3.8rem}

/* be the examiner */
.markit{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:1.6rem;align-items:start}
.verdict{display:grid;gap:.5rem}
.v-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;padding:.6rem .9rem;background:var(--surface);border:1px solid var(--line);border-radius:12px;font-size:.92em}
.v-row .mono{font-size:1.25rem;color:var(--coral-ink);visibility:hidden}
.v-row p{grid-column:1/-1;font-size:.86em;color:var(--ink-2);display:none}
.verdict.on .v-row .mono{visibility:visible}
.verdict.on .v-row p{display:block}
.v-total{display:none;padding:.7rem .9rem;border-radius:12px;background:var(--ink);color:#fff;justify-content:space-between;align-items:baseline}
.verdict.on .v-total{display:flex}
.v-total .mono{font-size:1.4rem}
.verdict-act{display:flex;align-items:center;gap:.8rem;margin-top:.8rem}
.verdict-act .mascot{--m:4rem}

/* ─── Practice tasks: stacked exam papers ─────────────────── */
.task-stack{max-width:1180px;margin:0 auto}
.task-stack .stack-card{--inc:50px;transform:none}
.paper{background:var(--surface);border-radius:var(--r);border:1px solid var(--line-2);box-shadow:var(--shadow);overflow:hidden}
.paper-top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:0 1.6rem;border-bottom:1px solid var(--line);background:#FBFAF7;height:50px}
.paper-top h3{margin:0;font-size:1.1em;display:flex;align-items:center;gap:10px}
.paper-top h3 i{color:var(--coral);font-size:1.3em}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:.74rem;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent-ink);white-space:nowrap}
.chip.warm{background:var(--coral-soft);color:var(--coral-ink)}
.chip.plain{background:#EFEEE9;color:var(--ink-2)}
.paper-body{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:2rem;padding:1.2rem 1.6rem 1.4rem}
.paper-body .ctx{margin-bottom:.7rem;font-size:.95em}
.paper-body .incoming{border-left:3px solid var(--coral-soft);padding-left:1rem;color:var(--ink-2);font-size:.95em;display:grid;gap:.4em}
.pb-right{display:flex;flex-direction:column;gap:.9rem}
.pb-right .instr{font-weight:600}
.acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}

/* ─── Timer ───────────────────────────────────────────────── */
.timer-stage{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);padding:2rem 2.6rem;display:grid;gap:1.4rem;position:relative}
.timer-top{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.timer-task{font-size:.95em;color:var(--ink-2)}
.timer-task b{color:var(--ink)}
.timer-main{display:grid;grid-template-columns:auto auto minmax(16rem,1fr);gap:2.2rem;align-items:center}
.timer-main .mascot{--m:7.5rem}
.clock{font-family:var(--mono);font-weight:600;font-size:min(8.6rem,12vw);letter-spacing:-.06em;line-height:.9;font-variant-numeric:tabular-nums;white-space:nowrap}
.phase-name{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:1.2em;margin-bottom:.8rem}
.phase-name .pill{font-family:var(--mono);font-size:.7em;padding:3px 10px;border-radius:999px;background:var(--coral-soft);color:var(--coral-ink)}
.phase-todo{list-style:none;display:grid;gap:.5rem;color:var(--ink-2)}
.phase-todo li{position:relative;padding-left:30px}
.phase-todo li>i:first-child{position:absolute;left:0;top:.25em;color:var(--accent)}
.track{display:grid;grid-template-columns:5fr 33fr 7fr;gap:4px}
.track div{height:12px;border-radius:999px;background:#ECEAE4;overflow:hidden;position:relative}
.track div span{position:absolute;inset:0;width:0;background:var(--accent);border-radius:inherit}
.track div:nth-child(3) span{background:var(--coral)}
.track-labels{display:grid;grid-template-columns:5fr 33fr 7fr;gap:4px;font-size:.76rem;color:var(--ink-3);font-weight:600;margin-top:6px}
.timer-controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.alert{position:absolute;left:50%;top:14px;transform:translate(-50%,-8px);opacity:0;pointer-events:none;background:var(--coral);color:#fff;font-weight:700;padding:.6em 1.4em;border-radius:999px;transition:opacity .25s,transform .25s;white-space:nowrap;z-index:2}
.alert.show{opacity:1;transform:translate(-50%,0)}
.timer-stage.done .clock{color:var(--coral)}
.sound-toggle[aria-pressed="false"] .on-ic{display:none}
.sound-toggle[aria-pressed="true"] .off-ic{display:none}
.timer-stage:fullscreen{border-radius:0;box-shadow:none;align-content:center;padding:4vw 6vw;background:var(--bg)}
.timer-stage:fullscreen .clock{font-size:min(20vw,38vh)}
.timer-stage:fullscreen .phase-todo{font-size:1.25em}
.timer-stage.fake-full{position:fixed;inset:0;z-index:100;border-radius:0;align-content:center;background:var(--bg)}
.mini{position:fixed;right:20px;bottom:20px;z-index:60;display:none;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:0 2px 4px rgba(24,24,40,.06),0 18px 40px -16px rgba(24,24,60,.35);padding:8px 10px 8px 10px}
.mini.show{display:flex}
.mini .mascot{--m:2.8rem}
.mini .mclock{font-family:var(--mono);font-weight:600;font-size:2rem;letter-spacing:-.05em;line-height:1;font-variant-numeric:tabular-nums}
.mini .mphase{font-size:.78rem;font-weight:700;color:var(--accent-ink);min-width:7ch}
.mini .mphase small{display:block;font-weight:500;color:var(--ink-3)}
.mini .mbtn{width:38px;height:38px;border-radius:999px;display:grid;place-items:center;border:1.5px solid var(--line-2);font-size:1.1rem}
.mini .mbtn:hover{border-color:var(--accent);color:var(--accent-ink)}
.mini .mbtn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.mini.done .mclock{color:var(--coral)}

/* ─── Self-check ──────────────────────────────────────────── */
.passes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.pass{border-radius:var(--r);padding:1.3rem 1.5rem;display:flex;flex-direction:column;gap:.75rem;background:var(--surface);border:1px solid var(--line)}
.pass:nth-child(2){background:var(--accent-soft);color:var(--accent-ink);border-color:transparent}
.pass-top{display:flex;align-items:center;gap:.8rem}
.pass .when{font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--coral-ink);display:block}
.pass h3{margin:0}
.pass ul{list-style:none;display:grid;gap:.55rem}
.pass li{position:relative;padding-left:28px;font-size:.93em}
.pass li>i[class*="ph"]:first-child{position:absolute;left:0;top:.25em;color:var(--coral)}
.pass:nth-child(2) li>i[class*="ph"]:first-child{color:var(--accent)}
.final-score{margin-top:1rem;display:grid;grid-template-columns:auto auto repeat(3,minmax(0,1fr));gap:1.4rem;align-items:center;padding:1rem 1.5rem;border-radius:var(--r);border:2px solid var(--ink);background:var(--surface)}
.final-score .mascot{--m:3.6rem}
.final-score h3{margin:0;white-space:nowrap}
.final-score p{font-size:.93em;color:var(--ink-2)}
.final-score p b{color:var(--ink)}
.final-score .k{font-family:var(--mono);color:var(--coral-ink);margin-right:6px}

/* ─── AI feedback ─────────────────────────────────────────── */
.ai-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;align-items:stretch}
.ai-step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1.1rem 1.3rem;display:flex;flex-direction:column;gap:.65rem}
.ai-step-top{display:flex;align-items:center;gap:.8rem}
.ai-step .when{font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--coral-ink);display:block}
.ai-step h3{margin:0}
.ai-step ul{list-style:none;display:grid;gap:.45rem;font-size:.92em;color:var(--ink-2)}
.ai-step li{position:relative;padding-left:26px}
.ai-step li>i:first-child{position:absolute;left:0;top:.25em;color:var(--accent)}
.pick{display:flex;flex-wrap:wrap;gap:6px}
.pick button{border:1.5px solid var(--line-2);background:var(--surface);border-radius:999px;padding:.42em .95em;font-size:.86em;font-weight:600;color:var(--ink-2)}
.pick button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.own-task{width:100%;min-height:5.5rem;resize:vertical;border:1.5px solid var(--line-2);border-radius:10px;padding:.6rem .8rem;font:inherit;font-size:.88em;color:var(--ink);background:#fff}
.own-task:focus{outline:3px solid var(--accent-soft);border-color:var(--accent)}
.field-label{font-size:.8rem;font-weight:600;color:var(--ink-2)}
.ai-list{display:grid;gap:6px}
.ai-btn{display:flex;justify-content:space-between;align-items:center;gap:10px;width:100%;padding:.45em 1em;border-radius:999px;border:1.5px solid var(--line-2);background:var(--surface);font-weight:600;font-size:.92em;text-align:left}
.ai-btn:hover{border-color:var(--coral);color:var(--coral-ink)}
.ai-btn i{color:var(--coral)}
.ai-status{font-size:.86em;color:var(--accent-ink);background:var(--accent-soft);border-radius:10px;padding:.55rem .8rem;display:none}
.ai-status.show{display:block}
.ai-status.err{background:var(--coral-soft);color:var(--coral-ink)}
.ai-foot{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-top:.8rem;font-size:.86em;color:var(--ink-3);flex-wrap:wrap}
.prompt-box{display:none;margin-top:.7rem;max-height:8.5rem;overflow:auto;white-space:pre-wrap;font-family:var(--mono);font-size:.72rem;line-height:1.5;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.8rem 1rem;color:var(--ink-2)}
.prompt-box.show{display:block}

/* ─── Sign-up ─────────────────────────────────────────────── */
.signup-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(28px,5vw,80px);align-items:center}
.signup-art{position:relative;display:grid;place-items:center;min-height:20rem}
.signup-art .mascot{position:absolute;left:4%;bottom:0;--m:7rem}
.envelope{width:min(22rem,80%);height:auto;overflow:visible}
.signup-form{display:grid;gap:.6rem;max-width:30rem;margin-top:1.4rem}
.signup-row{display:flex;gap:8px}
.signup-row input{flex:1;min-width:0;border:1.5px solid var(--line-2);border-radius:999px;padding:.7em 1.1em;font:inherit;font-size:.95em;background:#fff;color:var(--ink)}
.signup-row input:focus{outline:3px solid var(--coral-soft);border-color:var(--coral)}
.signup-note{font-size:.82em;color:var(--ink-3)}
.signup-msg{font-size:.9em;font-weight:600;color:var(--accent-ink);min-height:1.4em}
.signup-msg.err{color:var(--coral-ink)}
.perks{list-style:none;display:grid;gap:.5rem;margin-top:1.2rem}
.perks li{display:flex;gap:10px;align-items:center;color:var(--ink-2)}
.perks i{color:var(--coral);font-size:1.2rem}

footer{padding:24px 0 32px;border-top:1px solid var(--line);font-size:.85rem;color:var(--ink-3)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ─── Motion (all of it switched off for reduced motion) ──── */
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes blink{0%,92%,100%{transform:scaleY(1)}95%{transform:scaleY(.1)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
@keyframes drop{0%{transform:translateY(0);opacity:0}20%{opacity:1}80%{opacity:1}100%{transform:translateY(10px);opacity:0}}
@keyframes pop{0%{transform:scale(.85)}60%{transform:scale(1.06)}100%{transform:scale(1)}}
@keyframes twinkle{0%,100%{transform:scale(.6) rotate(0);opacity:.4}50%{transform:scale(1.1) rotate(20deg);opacity:1}}
@keyframes letterIn{0%,8%{transform:translateY(-62px)}36%,100%{transform:translateY(0)}}
@keyframes flapOpen{0%,40%{opacity:1}41%,100%{opacity:0}}
@keyframes flapClose{0%,40%{transform:scaleY(-1);opacity:0}41%{opacity:1}55%,100%{transform:scaleY(1);opacity:1}}
@keyframes sealPop{0%,56%{transform:scale(0)}66%{transform:scale(1.2)}72%,100%{transform:scale(1)}}
@keyframes envCycle{0%{opacity:0;transform:translateY(8px)}6%{opacity:1;transform:none}75%{transform:translateY(-8px) rotate(-2deg)}92%{opacity:1;transform:translateY(-8px) rotate(-2deg)}100%{opacity:0;transform:translateY(-14px) rotate(-3deg)}}
@keyframes pulse{50%{box-shadow:0 0 0 10px var(--coral-soft),var(--shadow)}}
@media (prefers-reduced-motion:no-preference){
  .hero-copy>*{animation:fadeUp .6s cubic-bezier(.2,.7,.2,1) both}
  .hero-copy>*:nth-child(2){animation-delay:.08s}
  .hero-copy>*:nth-child(3){animation-delay:.16s}
  .hero-copy>*:nth-child(4){animation-delay:.24s}
  .hero .sheet{animation:fadeUp .7s cubic-bezier(.2,.7,.2,1) .2s both}
  .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
  .reveal.in{opacity:1;transform:none}
  .ex.revealed .pair .to-txt{animation:fadeUp .35s ease both;animation-delay:calc(var(--n,0) * 90ms)}
  .timer-stage.warn,.mini.warn{animation:pulse 1.2s ease 3}
  .mascot .m-eyes{animation:blink 4.5s infinite}
  .mascot .m-body{animation:bob 3.2s ease-in-out infinite}
  .mascot .m-drop{animation:drop 1.8s ease-in infinite}
  .mascot .m-pop{animation:pop .45s ease both}
  .mascot .m-spark{animation:twinkle 1.6s ease-in-out infinite}
  .envelope .letter{animation:letterIn 5s ease-in-out infinite}
  .envelope .flap-open{animation:flapOpen 5s linear infinite}
  .envelope .flap{transform-box:fill-box;transform-origin:top;animation:flapClose 5s ease-in-out infinite}
  .envelope .seal{transform-box:fill-box;transform-origin:center;animation:sealPop 5s ease-in-out infinite}
  .envelope .env{transform-box:fill-box;transform-origin:center;animation:envCycle 5s ease-in-out infinite}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .envelope .flap-open{opacity:0}
}

/* ─── Small screens (phones, tablets) ─────────────────────── */
@media (max-width:980px){
  html{font-size:15px}
  .screen{min-height:0;padding:calc(var(--nav) + 32px) 0 40px}
  .hero-grid,.legible-grid,.stack-layout,.anatomy-layout,.model-grid,.markit,.paper-body,.signup-grid{grid-template-columns:1fr}
  .timer-main{grid-template-columns:auto 1fr}
  .timer-main>div:last-child{grid-column:1/-1}
  .stack-aside{position:static}
  .stack-aside .mascot{display:none}
  .stack-pad{height:8vh}
  .passes,.ai-steps{grid-template-columns:1fr}
  .final-score{grid-template-columns:auto 1fr}
  .final-score p{grid-column:1/-1}
  .hand-paper,#modelPaper,#modelTask{columns:1}
  .side{grid-template-columns:1fr}
  .notes{grid-template-columns:1fr}
  .head-row{flex-wrap:wrap}
  .phrases{grid-template-columns:1fr 1fr}
  .hero-art{margin-top:2rem}
}
@media (max-width:767px){
  .crit-cols,.phrases,.pair{grid-template-columns:1fr}
  .plan-bar,.plan-detail{grid-template-columns:1fr}
  .part{grid-template-columns:1fr;gap:2px}
  .hero h1{font-size:3rem}
  .legible-head{font-size:2.6rem}
  .clock{font-size:4.6rem}
  .timer-main .mascot{--m:4.5rem}
  .ex{padding:1.4rem}
  .ex-head{flex-direction:column}
  .signup-row{flex-direction:column}
  .signup-art{min-height:14rem}
}
@media print{
  .nav,.timer,.hero-actions,.btn,.mini,.mascot,.pen-write{display:none!important}
  .stack-card{position:static;transform:none}
  .reveal{opacity:1!important;transform:none!important}
}

/* ─── Speech bubbles (teacher's voice) ────────────────────── */
.guide{display:flex;align-items:center;gap:.9rem}
.say{position:relative;display:inline-block;background:#fff;border:2px solid var(--ink);border-radius:16px;padding:.45em .85em;font-family:var(--hand);font-size:1.02rem;line-height:1.3;color:var(--ink);box-shadow:3px 3px 0 var(--ink);max-width:19rem;margin:0}
.say::after{content:"";position:absolute;width:12px;height:12px;background:#fff;border:2px solid var(--ink);border-top:0;border-right:0;left:-8px;top:50%;margin-top:-6px;transform:rotate(45deg)}
.say.tail-right::after{left:auto;right:-8px;transform:rotate(-135deg)}
.say.tail-up::after{left:50%;top:-8px;margin:0 0 0 -6px;transform:rotate(135deg)}
.say.tail-down::after{left:2.2rem;top:auto;bottom:-8px;margin:0;transform:rotate(-45deg)}
.say:empty{display:none}
@media (prefers-reduced-motion:no-preference){.say.pop{animation:pop .35s ease both}}
.timer-guide{display:flex;flex-direction:column;align-items:center;gap:.7rem}
.timer-guide .say{max-width:12rem;font-size:.92rem;text-align:center}