:root { --bg:#fdf2f8; --ink:#3b0a45; --accent:#f9a8d4; --accent2:#7c3aed; --ok:#15803d; --err:#b91c1c; }
* { box-sizing: border-box; }
[hidden] { display: none !important; } /* keep the hidden attribute winning over display:flex rules */
body { margin:0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background:var(--bg); color:var(--ink); line-height:1.5; }
#app { max-width: 32rem; margin: 0 auto; padding: 1.25rem; }
h1 { font-size: 1.4rem; margin:.2rem 0; }
.field { display:block; margin:1rem 0; }
fieldset { border:2px solid var(--accent); border-radius:.6rem; margin:1rem 0; }
legend { padding:0 .4rem; }
input[type=text] { width:100%; padding:.6rem; font-size:1.1rem; border:2px solid var(--accent); border-radius:.6rem; }
button { background:var(--accent2); color:white; border:0; border-radius:.6rem; padding:.6rem 1rem; font-size:1rem; cursor:pointer; }
button:focus-visible, input:focus-visible { outline:3px solid var(--accent2); outline-offset:2px; }
.instruction { font-style:italic; opacity:.85; margin:.5rem 0 0; }
.example { margin:.5rem 0 0; padding:.5rem .7rem; border-left:3px solid #7c3aed; background:rgba(124,58,237,0.07); border-radius:6px; font-size:.95rem; }
.example .exlabel { font-weight:700; color:#7c3aed; text-transform:uppercase; font-size:.72rem; letter-spacing:.04em; }
.example .exq { font-style:italic; }
.example .exa { display:block; margin-top:.15rem; }
.example .exwhy { display:block; margin-top:.15rem; opacity:.8; font-size:.88rem; }
#question { font-size:1.25rem; margin:.6rem 0 1rem; min-height:2.5rem; }
#feedback { min-height:1.5rem; font-weight:600; }
#feedback.ok { color:var(--ok); }
#feedback.err { color:var(--err); }
.loaderror { white-space:pre-wrap; color:var(--err); font-weight:600; }
footer { margin-top:2rem; display:flex; gap:.75rem; flex-wrap:wrap; }
.import { background:var(--accent); color:var(--ink); border-radius:.6rem; padding:.6rem 1rem; cursor:pointer; }
body.celebrate { animation: pop .65s ease; }
@keyframes pop { 0%{ background:var(--bg);} 30%{ background:#fce7f3;} 100%{ background:var(--bg);} }
@media (prefers-reduced-motion: reduce){ body.celebrate{ animation:none; } }

/* nav + Phase 2 writing/mock views */
#nav { display:flex; gap:.5rem; margin:.25rem 0 1rem; flex-wrap:wrap; }
.navbtn { background:var(--accent); color:var(--ink); }
.navbtn.active { background:var(--accent2); color:white; }
.row { display:flex; gap:.75rem; align-items:center; flex-wrap:wrap; margin:.75rem 0; }
select { padding:.45rem; font-size:1rem; border:2px solid var(--accent); border-radius:.5rem; background:white; color:var(--ink); }
.card { background:white; border:2px solid var(--accent); border-radius:.6rem; padding:.75rem 1rem; margin:.5rem 0; }
.meta { font-size:.85rem; opacity:.75; margin:.1rem 0 .5rem; }
.clock { font-variant-numeric:tabular-nums; font-size:1.2rem; font-weight:700; }
.band { border-top:1px solid var(--accent); padding:.5rem 0; }
.bandhead { display:flex; gap:.5rem; align-items:center; justify-content:space-between; }
.ask { margin:.25rem 0; opacity:.85; }
.part { background:white; border:2px solid var(--accent); border-radius:.6rem; padding:.5rem 1rem; margin:.75rem 0; }
.part h2 { font-size:1.1rem; }
.keys { color:var(--ok); }
/* --- manga skin (D-29 structure; placeholder art) --- */
body.has-backdrop { background-attachment: fixed; min-height: 100vh; }
:root { --ink2:#1f0a26; --screentone: radial-gradient(var(--accent) 1px, transparent 1.4px); }
/* in-exercise question shown as a manga speech bubble (black-and-white feel) */
#today #question {
  position:relative; background:white; border:3px solid var(--ink2); border-radius:1rem;
  padding:.9rem 1rem; margin:.6rem 0 1.1rem; font-weight:600;
}
#today #question::after {
  content:""; position:absolute; left:2rem; bottom:-15px; width:0; height:0;
  border:12px solid transparent; border-top-color:var(--ink2); border-bottom:0;
}
#today #question::before {
  content:""; position:absolute; left:2.15rem; bottom:-10px; width:0; height:0;
  border:9px solid transparent; border-top-color:white; border-bottom:0; z-index:1;
}
/* manga panels: thick ink borders + offset shadow. B&W in-exercise. */
.qcard, .part { border:3px solid var(--ink2); box-shadow:4px 4px 0 var(--ink2); }
.mangacover, .mangaslot {
  border:3px solid var(--ink2); border-radius:.5rem; margin:.5rem 0; padding:1rem;
  display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; min-height:5.5rem;
}
.mangaslot.placeholder { background-color:#fff; background-image:var(--screentone); background-size:9px 9px; }
.mangaslot.bw { filter:grayscale(1); }
.mangaslot.colour { box-shadow:4px 4px 0 var(--accent2); }
.mangaslot .slottag {
  align-self:flex-start; font-size:.65rem; text-transform:uppercase; letter-spacing:.1em;
  background:var(--ink2); color:white; padding:.1rem .4rem; border-radius:.3rem;
}
.mangaslot figcaption { font-style:italic; opacity:.85; margin-top:.4rem; font-size:.9rem; }
.mangaslot img { max-width:100%; border-radius:.3rem; }
.achievement .mangaslot { margin:0 auto .6rem; max-width:14rem; }

/* daily set ("chapter") progress + achievement */
.setbar { margin:.5rem 0 1rem; }
.sectionlabel { font-weight:700; margin:.2rem 0; color:var(--accent2); }
.progressbar { height:.6rem; background:#fce7f3; border-radius:.4rem; overflow:hidden; border:1px solid var(--accent); }
.progressfill { height:100%; width:0; background:var(--accent2); transition:width .3s ease; }
@media (prefers-reduced-motion: reduce){ .progressfill{ transition:none; } }
.setcount { font-size:.85rem; opacity:.75; margin:.25rem 0 0; }
.achievement { background:white; border:2px solid var(--accent2); border-radius:.6rem; padding:1rem 1.25rem; margin:.5rem 0; text-align:center; }
.achievement h2 { color:var(--accent2); margin:.2rem 0 .6rem; }
.bigscore { font-size:1.3rem; font-weight:700; }

/* auth (soft gate) */
.err { color:var(--err); font-weight:600; }
.ok { color:var(--ok); font-weight:600; }
.totpkey { font-size:1.1rem; font-weight:700; letter-spacing:.05em; word-break:break-all; }
.totpuri { font-size:.8rem; word-break:break-all; opacity:.8; }
#auth input[type=password], #auth input[type=text] { width:100%; }

/* reading scene */
#reading-passage h2 { font-size:1.15rem; margin:.1rem 0 .5rem; }
.qcard { border:2px solid var(--accent); border-radius:.6rem; margin:.6rem 0; padding:.5rem .8rem; }
.qcard legend { font-weight:600; padding:0 .3rem; }
.opt { display:block; margin:.3rem 0; cursor:pointer; }
.opt input { margin-right:.5rem; }
.qcard.ok { border-color:var(--ok); background:#f0fdf4; }
.qcard.err { border-color:var(--err); background:#fef2f2; }

details summary { cursor:pointer; font-weight:600; }
details { margin:.4rem 0; }
ol, ul { margin:.4rem 0; padding-left:1.4rem; }
li { margin:.2rem 0; }