:root{
  --bg:#F6F8FB; --card:#FFFFFF; --ink:#18212F; --muted:#6B7686; --line:#E6EAF0;
  --accent:#12A594; --accent-soft:#E3F6F3; --accent-ink:#0B7A6D;
  --flame:#FF7A45; --flame-soft:#FFF0E8; --sun:#F5B700; --sun-soft:#FFF7DB;
  --miss:#E5484D; --miss-soft:#FDECEC;
  --r:18px; --shadow:0 1px 2px rgba(16,24,40,.04),0 4px 16px rgba(16,24,40,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg)}
body{font-family:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;color:var(--ink);
  -webkit-font-smoothing:antialiased;min-height:100vh;
  padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
.app{max-width:520px;margin:0 auto;padding:20px 16px 110px}
.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.02em}
.logo{width:34px;height:34px;border-radius:10px;background:var(--accent);display:grid;place-items:center}
.icon-btn{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--card);box-shadow:var(--shadow)}
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.coach{display:flex;gap:12px;align-items:flex-start}
.coach-av{flex:none;width:42px;height:42px;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center;font-weight:800;color:var(--accent-ink)}
.coach-name{font-size:12px;font-weight:700;color:var(--accent-ink);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.coach-msg{font-size:16px;line-height:1.5;font-weight:500}
.why{margin-top:12px;padding:10px 12px;border-radius:12px;background:var(--sun-soft);font-size:13px;color:#7A5B00;line-height:1.45}
.hero{display:flex;align-items:center;gap:18px}
.ring{position:relative;width:132px;height:132px;flex:none}
.ring svg{transform:rotate(-90deg)}
.ring-txt{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring-num{font-size:30px;font-weight:800;letter-spacing:-.03em;line-height:1}
.ring-sub{font-size:12px;color:var(--muted);margin-top:4px}
.stats{flex:1;display:grid;gap:10px}
.stat{display:flex;align-items:center;gap:10px}
.chip{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;flex:none}
.stat b{display:block;font-size:18px;font-weight:800;line-height:1.1}
.stat span{font-size:12px;color:var(--muted)}
.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:15px 18px;border-radius:14px;font-weight:700;font-size:15px;transition:transform .08s}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:#fff}
.btn-ghost{background:var(--accent-soft);color:var(--accent-ink)}
.btn-plain{background:var(--bg);color:var(--ink)}
.btn-danger{background:var(--miss-soft);color:var(--miss)}
.row{display:flex;gap:10px}
.row>*{flex:1}
.timer{font-size:44px;font-weight:800;letter-spacing:-.03em;text-align:center;font-variant-numeric:tabular-nums;margin:6px 0 14px}
.h2{font-size:18px;font-weight:800;letter-spacing:-.02em;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center}
.h2 small{font-size:13px;font-weight:600;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:13px}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;text-align:center}
.wd{font-size:11px;color:var(--muted);font-weight:600;margin-bottom:6px}
.dot{aspect-ratio:1;border-radius:12px;display:grid;place-items:center;font-size:13px;font-weight:700;background:var(--bg);color:var(--muted)}
.dot.hit{background:var(--accent);color:#fff}
.dot.part{background:var(--accent-soft);color:var(--accent-ink)}
.dot.rest{background:var(--sun-soft);color:#9A7300}
.dot.miss{background:var(--miss-soft);color:var(--miss)}
.dot.today{outline:2px solid var(--ink);outline-offset:2px}
.legend{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:4px;margin-right:5px;vertical-align:-1px}
.book{display:flex;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--line)}
.h2+.book{border-top:0}
.spine{width:42px;height:58px;border-radius:6px;flex:none;display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px}
.book-info{flex:1;min-width:0}
.book-title{font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.book-author{font-size:12px;color:var(--muted);margin-bottom:6px}
.bar{height:6px;background:var(--bg);border-radius:6px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--accent);border-radius:6px}
.tag{display:inline-block;padding:4px 9px;border-radius:999px;font-size:11px;font-weight:700;background:var(--accent-soft);color:var(--accent-ink)}
.entry{padding:14px 0;border-top:1px solid var(--line)}
.h2+.entry{border-top:0;padding-top:0}
.entry q{display:block;font-size:15px;line-height:1.5;font-weight:500;quotes:none}
.entry .meta{font-size:12px;color:var(--muted);margin-top:6px}
.empty{text-align:center;padding:26px 10px;color:var(--muted);font-size:14px;line-height:1.5}
.tabs{position:fixed;left:0;right:0;bottom:0;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:8px 8px calc(8px + env(safe-area-inset-bottom));display:flex;justify-content:center;z-index:10}
.tabs-in{display:flex;max-width:520px;width:100%}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 0;font-size:11px;font-weight:700;color:var(--muted);border-radius:12px}
.tab.on{color:var(--accent-ink)}
.tab svg{width:22px;height:22px}
.sheet-bg{position:fixed;inset:0;background:rgba(16,24,40,.38);z-index:20;display:flex;align-items:flex-end;justify-content:center;animation:fade .15s}
.sheet{background:var(--card);width:100%;max-width:520px;border-radius:24px 24px 0 0;padding:20px 18px calc(20px + env(safe-area-inset-bottom));max-height:92vh;overflow:auto;animation:up .2s ease-out}
@keyframes up{from{transform:translateY(30px);opacity:.5}}
@keyframes fade{from{opacity:0}}
.sheet h3{font-size:19px;font-weight:800;letter-spacing:-.02em;margin-bottom:4px}
.field{margin-top:14px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}
.field .hint{font-size:12px;color:var(--muted);margin-top:5px}
.inp{width:100%;padding:13px 14px;border-radius:12px;border:1.5px solid var(--line);background:#fff;font-size:15px;outline:none}
.inp:focus{border-color:var(--accent)}
textarea.inp{min-height:84px;resize:vertical;line-height:1.45}
.seg{display:flex;background:var(--bg);border-radius:12px;padding:4px;gap:4px}
.seg button{flex:1;padding:10px;border-radius:9px;font-weight:700;font-size:14px;color:var(--muted)}
.seg button.on{background:#fff;color:var(--ink);box-shadow:var(--shadow)}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{padding:9px 13px;border-radius:999px;border:1.5px solid var(--line);font-size:13px;font-weight:700;background:#fff}
.pill.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}
.err{color:var(--miss);font-size:13px;font-weight:600;margin-top:10px}
.sug{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-top:1px solid var(--line)}
.sug:first-child{border-top:0}
.sug b{font-size:14px;display:block}
.sug span{font-size:12px;color:var(--muted)}
.add-mini{padding:7px 12px;border-radius:10px;background:var(--accent-soft);color:var(--accent-ink);font-weight:700;font-size:13px;flex:none}
.big{font-size:32px;font-weight:800;letter-spacing:-.03em}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tile{background:var(--bg);border-radius:14px;padding:14px}
.tile b{display:block;font-size:22px;font-weight:800;letter-spacing:-.02em}
.tile span{font-size:12px;color:var(--muted)}
.save-note{font-size:11px;color:var(--muted);text-align:center;margin-top:10px}
.onb{min-height:80vh;display:flex;flex-direction:column;justify-content:center}
.onb h1{font-size:30px;font-weight:800;letter-spacing:-.03em;line-height:1.15;margin:18px 0 10px}
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 16px;border-radius:14px;font-size:14px;font-weight:600;z-index:30;max-width:90%;text-align:center;animation:up .2s}
.link-btn{color:var(--accent-ink);font-weight:700;font-size:13px}
.reader{position:fixed;inset:0;background:#FBFAF7;z-index:25;display:flex;flex-direction:column;padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom)}
.r-top,.r-bot{display:flex;align-items:center;gap:10px;padding:10px 14px;background:#fff;border-bottom:1px solid var(--line)}
.r-bot{border-top:1px solid var(--line);border-bottom:0}
.r-title{flex:1;min-width:0;font-weight:700;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.r-close{padding:8px 12px;border-radius:10px;background:var(--accent);color:#fff;font-weight:700;font-size:13px;flex:none}
.r-time{font-variant-numeric:tabular-nums;font-weight:700;font-size:13px;color:var(--muted);min-width:44px;text-align:right}
.r-fs{padding:6px 9px;border-radius:9px;background:var(--bg);font-weight:800;font-size:13px;flex:none}
.r-body{flex:1;overflow:auto;-webkit-overflow-scrolling:touch}
.r-text{max-width:640px;margin:0 auto;padding:28px 22px 40px;font-family:'Literata',Georgia,serif;line-height:1.75;color:#222}
.r-text p{margin:0 0 1em}
.r-text h4{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.15em;margin:.4em 0 1em;font-weight:800;line-height:1.35}
.r-nav{width:46px;height:46px;border-radius:14px;background:var(--bg);display:grid;place-items:center;font-size:22px;font-weight:700;flex:none}
.r-nav:disabled{opacity:.35}
.r-pg{flex:1;text-align:center;font-size:13px;font-weight:700}
.r-pg .bar{margin-top:6px}
.r-pdf{display:flex;justify-content:center;padding:12px}
.r-pdf canvas{box-shadow:var(--shadow);background:#fff;max-width:100%}
.r-loading{display:grid;place-items:center;height:100%;color:var(--muted);font-weight:600;padding:20px;text-align:center}
.filebox{border:1.5px dashed var(--line);border-radius:14px;padding:14px;text-align:center;font-size:13px;color:var(--muted);display:block;cursor:pointer;font-weight:600}
.filebox.ok{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink);border-style:solid}
.filebox input{display:none}
.tab{font-size:10.5px}
.q{background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:16px;margin-bottom:12px}
.q-n{font-size:12px;font-weight:800;color:var(--accent-ink);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.q-t{font-size:16px;font-weight:700;line-height:1.45;margin-bottom:12px}
.ch{display:block;width:100%;text-align:left;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);margin-bottom:8px;font-size:14px;font-weight:600;line-height:1.4;background:#fff}
.ch.right{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}
.ch.wrong{border-color:var(--miss);background:var(--miss-soft);color:var(--miss)}
.ch:disabled{cursor:default}
.explain{font-size:13px;line-height:1.5;color:var(--muted);margin-top:4px;padding:10px 12px;background:var(--bg);border-radius:10px}
.w-wrap{max-width:560px;margin:0 auto;padding:16px 16px 40px}
.score{font-size:44px;font-weight:800;letter-spacing:-.03em}
.wk-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-top:1px solid var(--line)}
.h2+.wk-row{border-top:0}
.wk-row b{font-size:14px;display:block}
.wk-row span{font-size:12px;color:var(--muted)}
.chk{display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:12px;background:var(--sun-soft);font-size:14px;font-weight:600;line-height:1.45;color:#6B5000;cursor:pointer}
.chk input{width:20px;height:20px;accent-color:var(--accent);flex:none;margin-top:1px}

.pdfbox{position:relative;box-shadow:var(--shadow);background:#fff}
.pdfbox canvas{display:block}
.textLayer{position:absolute;inset:0;overflow:clip;opacity:1;line-height:1;text-align:initial;transform-origin:0 0;z-index:0;
  --min-font-size:1;--text-scale-factor:calc(var(--total-scale-factor) * var(--min-font-size));--min-font-size-inv:calc(1 / var(--min-font-size))}
.textLayer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0% 0%;user-select:text;-webkit-user-select:text}
.textLayer > :not(.markedContent),.textLayer .markedContent span:not(.markedContent){z-index:1;--font-height:0;font-size:calc(var(--text-scale-factor) * var(--font-height));--scale-x:1;--rotate:0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}
.textLayer .markedContent{display:contents}
.textLayer ::selection{background:rgba(18,165,148,.3)}
.textLayer mark{color:transparent;border-radius:2px;padding:0}
.r-text mark{color:inherit;border-radius:3px;padding:1px 0;cursor:pointer}
mark.has-note{box-shadow:inset 0 -2px 0 rgba(0,0,0,.35)}
.selbar{position:absolute;left:50%;transform:translateX(-50%);bottom:80px;background:var(--ink);border-radius:14px;padding:6px;display:flex;gap:2px;z-index:5;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.selbar[hidden]{display:none}
.selbar button{color:#fff;font-weight:700;font-size:13px;padding:9px 10px;border-radius:10px;white-space:nowrap}
.selbar button:active{background:rgba(255,255,255,.15)}
.quote{padding:12px 14px;border-radius:12px;font-size:15px;line-height:1.55;font-family:'Literata',Georgia,serif;margin-top:8px}
.cdot{width:30px;height:30px;border-radius:50%;border:2px solid transparent}
.cdot.on{border-color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.lchip{display:inline-block;padding:6px 10px;border-radius:999px;background:var(--bg);font-size:12px;font-weight:700;color:var(--accent-ink);text-decoration:none;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--line)}
.lwrap{display:inline-flex;align-items:center;gap:2px}
.lx{font-size:11px;color:var(--muted);padding:4px}
.reader .r-body{position:relative}

.sheet-bg{z-index:60}
.toast{z-index:70}

/* ===== Cutesy theme ===== */
:root{
  --bg:#FFF7F3; --card:#FFFFFF; --ink:#3B2A35; --muted:#937D89; --line:#F5E3EA;
  --accent:#F2679B; --accent-soft:#FFE6EF; --accent-ink:#C23A70;
  --flame:#FF8A5B; --flame-soft:#FFEFE6; --sun:#FFC93C; --sun-soft:#FFF6D9;
  --miss:#E85A6B; --miss-soft:#FFE9EC;
  --r:24px; --shadow:0 2px 4px rgba(194,58,112,.05),0 10px 26px rgba(194,58,112,.09);
}
body{font-family:'Nunito','Plus Jakarta Sans',system-ui,-apple-system,sans-serif;
  background:radial-gradient(circle at 10% 0%,#FFE9F1 0,transparent 40%),radial-gradient(circle at 100% 30%,#FFF1DE 0,transparent 35%),var(--bg);background-attachment:fixed}
.card,.q{border-radius:var(--r)}
.btn{border-radius:18px;font-weight:800}
.btn-primary{background:linear-gradient(180deg,#F77CA9,#EE5C92);box-shadow:0 6px 14px rgba(238,92,146,.28)}
.btn-primary:disabled{opacity:.5;box-shadow:none}
.pill{border-radius:999px;font-weight:800}
.inp{border-radius:16px}
.brand{gap:8px;font-weight:900;font-size:22px;color:var(--accent-ink)}
.brand .pagi{margin:-4px -2px}
.coach-av{background:var(--accent-soft);width:48px;height:48px;overflow:visible}
.coach-av .pagi{margin-top:-4px}
.coach-name{color:var(--accent-ink);text-transform:none;letter-spacing:0;font-size:13px}
.coach-msg{font-weight:600}
.dot{border-radius:50%}
.dot.hit{background:var(--accent)}
.tab.on{color:var(--accent-ink)}
.tab.on svg{transform:translateY(-1px) scale(1.08)}
.tabs{border-top:1px solid var(--line);border-radius:22px 22px 0 0}
.spine{border-radius:10px}
.sheet{border-radius:28px 28px 0 0}
.why{border-radius:16px}
.onb h1{color:var(--ink)}
.onb-pagi{display:inline-block;animation:bob 2.4s ease-in-out infinite}
.pagi-wave .pagi-arm{transform-origin:82px 62px;animation:wave 1.1s ease-in-out infinite}
@keyframes wave{0%,100%{transform:rotate(0)}50%{transform:rotate(-18deg)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ===== Intro ===== */
#intro{position:fixed;inset:0;z-index:100;display:grid;place-items:center;cursor:pointer;
  background:radial-gradient(circle at 30% 20%,#FFE3EE 0,transparent 50%),radial-gradient(circle at 80% 80%,#FFF0D9 0,transparent 50%),#FFF7F3;transition:opacity .45s}
#intro.out{opacity:0;pointer-events:none}
.ib-stage{position:relative;width:260px;height:300px;display:grid;place-items:center}
.ibook{position:absolute;width:220px;height:150px;perspective:900px;animation:bookIn .5s cubic-bezier(.3,1.6,.5,1) both,bookOut .45s 1.95s ease-in forwards}
.ib-left,.ib-right,.ib-page{position:absolute;top:0;width:110px;height:150px;background:#FFFDF8 repeating-linear-gradient(180deg,transparent 0 17px,#F7DCE6 17px 19px);background-clip:padding-box;border:3px solid #F4A9C3}
.ib-left{left:0;border-radius:16px 4px 4px 16px;box-shadow:-6px 8px 0 #FF8DB4}
.ib-right{right:0;border-radius:4px 16px 16px 4px;box-shadow:6px 8px 0 #FF8DB4}
.ib-page{right:0;border-radius:4px 16px 16px 4px;transform-origin:left center;animation:flip .6s cubic-bezier(.45,.05,.4,1) both}
@keyframes flip{0%{transform:rotateY(0)}100%{transform:rotateY(-180deg)}}
@keyframes bookIn{from{transform:scale(.4) rotate(-8deg);opacity:0}}
@keyframes bookOut{to{transform:scale(.3) translateY(40px);opacity:0}}
.spark{position:absolute;color:#FFC93C;font-size:20px;opacity:0;animation:spark 1.4s .4s ease-in-out infinite}
.spark.s1{left:-22px;top:-14px}.spark.s2{right:-20px;top:4px;color:#FF8DB4;animation-delay:.8s}.spark.s3{left:50%;top:-34px;animation-delay:1.2s}
@keyframes spark{0%,100%{opacity:0;transform:scale(.5)}50%{opacity:1;transform:scale(1.1)}}
.ib-logo{position:absolute;text-align:center;opacity:0;animation:fadeIn .01s 2.05s forwards}
.ib-pagi{display:inline-block;animation:pop .6s 2.05s cubic-bezier(.3,1.7,.5,1) both}
@keyframes pop{from{transform:scale(0) rotate(-20deg)}}
@keyframes fadeIn{to{opacity:1}}
.ib-word{font-size:46px;font-weight:900;color:var(--accent-ink);letter-spacing:-.02em;margin-top:2px}
.ib-word span{display:inline-block;animation:letter .5s cubic-bezier(.3,1.8,.5,1) both}
@keyframes letter{from{transform:translateY(24px) scale(.3);opacity:0}}
.ib-tag{font-weight:800;color:var(--muted);margin-top:4px;opacity:0;animation:fadeIn .4s 2.8s forwards}
.ib-skip{position:absolute;bottom:calc(28px + env(safe-area-inset-bottom));left:0;right:0;text-align:center;font-size:12px;font-weight:700;color:#C9AEBB}
@media (prefers-reduced-motion: reduce){ .ibook,.ib-page,.spark{animation:none} .ibook{display:none} .ib-logo,.ib-tag{animation:none;opacity:1} .ib-pagi,.ib-word span{animation:none} }