/* Practise: the hub (static/js/views/practise.js) and the Forms drill
   (static/js/views/forms.js). Uses the colour tokens of style.css. */

/* ── the hub ───────────────────────────────────────────────────────────
   One card per kind of practice, grouped; each card has its own hue (--pc)
   so a grid of eight reads as eight different things to do. */
.pr { max-width: 1040px; }
.pr-hero {
  position: relative; overflow: hidden;
  padding: 26px 26px 24px; border-radius: 20px; margin-bottom: 26px;
  background:
    radial-gradient(120% 140% at 100% 0%, color-mix(in srgb, var(--verb) 22%, transparent) 0%, transparent 55%),
    radial-gradient(90% 120% at 0% 100%, color-mix(in srgb, var(--accent) 20%, transparent) 0%, transparent 60%),
    var(--card);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.pr-kicker {
  margin: 0 0 6px; font-size: 11.5px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent);
}
.pr-h { margin: 0; font-family: var(--serif); font-size: clamp(26px, 4vw, 34px); line-height: 1.15; letter-spacing: -0.01em; }
.pr-sub { margin: 8px 0 0; max-width: 46ch; color: var(--muted); font-size: 15px; line-height: 1.5; }
.pr-group { margin: 0 0 26px; }
.pr-group-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; margin: 0 0 12px; }
.pr-group-head h3 { margin: 0; font-size: 17px; letter-spacing: -0.01em; }
.pr-group-head p { margin: 0; font-size: 13px; color: var(--muted); }
.pr-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.pr-card {
  --pc-c: hsl(var(--pc) var(--tint-s) var(--hue-text-l));
  position: relative; display: flex; align-items: flex-start; gap: 14px;
  text-align: left; font: inherit; color: var(--text); cursor: pointer;
  padding: 16px 48px 16px 16px; border-radius: 16px; min-height: 104px;
  background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.12s, box-shadow 0.15s;
}
.pr-card:hover { border-color: var(--pc-c); transform: translateY(-2px); box-shadow: var(--shadow-pop); }
.pr-card:active { transform: scale(0.985); }
.pr-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.pr-icon {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 13px; color: var(--pc-c);
  background: color-mix(in srgb, var(--pc-c) 13%, var(--card));
}
.pr-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.pr-title-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.pr-title { font-size: 16px; letter-spacing: -0.01em; }
.pr-what { font-size: 13.5px; line-height: 1.45; color: var(--muted); }
.pr-meta { font-size: 12px; font-weight: 600; color: var(--pc-c); margin-top: 2px; }
.pr-tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 2px 7px; border-radius: 999px; color: var(--on-accent); background: var(--verb);
}
.pr-tag.is-soon { color: var(--muted); background: var(--panel); border: 1px solid var(--border); }
.pr-go {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted);
  transition: color 0.15s, border-color 0.15s, transform 0.15s;
}
.pr-card:hover .pr-go { color: var(--pc-c); border-color: var(--pc-c); transform: translateY(-50%) translateX(2px); }
.pr-card.is-soon { cursor: default; box-shadow: none; background: transparent; border-style: dashed; padding-right: 16px; }
.pr-card.is-soon:hover { transform: none; border-color: var(--border); box-shadow: none; }
.pr-card.is-soon .pr-icon { color: var(--muted); background: var(--panel); }
@media (max-width: 720px) {
  .pr-hero { padding: 20px 18px; border-radius: 16px; margin-bottom: 20px; }
  .pr-grid { grid-template-columns: 1fr; }
}

/* ── the Forms drill ───────────────────────────────────────────────────── */
.fm { max-width: 720px; }
.fm-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.fm-head h2 { margin: 0; font-family: var(--serif); font-size: 30px; letter-spacing: -0.01em; }
.fm-sub { margin: 4px 0 0; max-width: 46ch; color: var(--muted); font-size: 14px; line-height: 1.5; }
.fm-stats { display: flex; gap: 8px; }
.fm-stat {
  display: flex; flex-direction: column; align-items: center; min-width: 62px;
  padding: 8px 10px; border-radius: 12px; background: var(--card); border: 1px solid var(--border);
}
.fm-stat strong { font-size: 19px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.fm-stat span { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.fm-stat.is-hot { border-color: var(--neut); background: color-mix(in srgb, var(--neut) 10%, var(--card)); }
.fm-stat.is-hot strong { color: var(--neut); }
.fm-controls { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.fm-seg { display: inline-flex; align-self: flex-start; gap: 2px; padding: 3px; border-radius: 12px; background: var(--border); }
.fm-seg-btn {
  border: none; background: none; color: var(--muted); font: inherit; font-size: 14px; font-weight: 600;
  padding: 7px 18px; border-radius: 9px; cursor: pointer;
}
.fm-seg-btn.is-on { background: var(--card); color: var(--accent); box-shadow: var(--shadow); }
.fm-row { display: flex; align-items: baseline; gap: 10px; }
.fm-row-label { flex: none; width: 82px; font-size: 12px; font-weight: 600; color: var(--muted); }
.fm-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.fm-chip {
  font: inherit; font-size: 13px; padding: 5px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--card); color: var(--muted);
}
.fm-chip:hover { color: var(--text); border-color: var(--accent); }
.fm-chip.is-on { color: var(--on-accent); background: var(--accent); border-color: var(--accent); }
.fm-card {
  display: flex; flex-direction: column; gap: 18px;
  padding: 26px; border-radius: 20px; background: var(--card);
  border: 1px solid var(--border); box-shadow: var(--shadow-pop);
  animation: fm-in 0.22s ease-out;
}
@keyframes fm-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.fm-card.is-loading { min-height: 220px; align-items: center; justify-content: center; box-shadow: var(--shadow); }
.fm-wait { color: var(--muted); font-size: 22px; margin: 0; }
.fm-empty p { margin: 0; color: var(--muted); }
.fm-word-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.fm-word-box { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.fm-word { font-family: var(--serif); font-size: clamp(32px, 6vw, 44px); line-height: 1.05; font-weight: 600; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.fm-gloss { color: var(--muted); font-size: 15px; }
.fm-hear, .fm-say-answer {
  flex: none; display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
  width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--card); color: var(--muted);
}
.fm-hear:hover, .fm-say-answer:hover { color: var(--accent); border-color: var(--accent); }
.fm-say-answer { width: 28px; height: 28px; }
.fm-ask { display: flex; flex-wrap: wrap; gap: 8px; }
.fm-who, .fm-when { font-size: 15px; font-weight: 600; padding: 6px 14px; border-radius: 999px; }
.fm-who { color: var(--accent); background: var(--accent-soft); }
.fm-when { color: var(--verb); background: color-mix(in srgb, var(--verb) 12%, var(--card)); }
.fm-type { display: flex; flex-direction: column; gap: 10px; }
.fm-type-row { display: flex; gap: 8px; }
.fm-input {
  flex: 1; min-width: 0; font: inherit; font-size: 22px; padding: 12px 16px; border-radius: 14px;
  border: 2px solid var(--border); background: var(--bg); color: var(--text);
}
.fm-input:focus-visible { outline: none; border-color: var(--accent); }
.fm-input.is-right { border-color: var(--verb); color: var(--verb); }
.fm-input.is-wrong { border-color: var(--fem); color: var(--fem); text-decoration: line-through; }
.fm-check, .fm-next {
  display: inline-flex; align-items: center; gap: 6px; font: inherit; font-size: 15px; font-weight: 600; cursor: pointer;
  padding: 0 22px; min-height: 48px; border-radius: 14px; border: none;
  background: var(--accent); color: var(--on-accent);
}
.fm-check:hover, .fm-next:hover { filter: brightness(1.08); }
.fm-next { align-self: flex-start; }
.fm-choices { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fm-choice {
  font: inherit; font-size: 19px; font-weight: 500; padding: 14px; border-radius: 14px; cursor: pointer;
  border: 2px solid var(--border); background: var(--bg); color: var(--text);
  transition: border-color 0.12s, background 0.12s;
}
.fm-choice:hover { border-color: var(--accent); }
.fm-choice.is-right { border-color: var(--verb); background: color-mix(in srgb, var(--verb) 12%, var(--card)); color: var(--verb); }
.fm-choice.is-wrong { border-color: var(--fem); background: color-mix(in srgb, var(--fem) 10%, var(--card)); color: var(--fem); }
.fm-verdict { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; }
.fm-verdict:empty { display: none; }
.fm-verdict.is-right { color: var(--verb); }
.fm-verdict.is-wrong { color: var(--fem); }
.fm-verdict.is-near { color: var(--neut); }
.fm-verdict-icon { display: inline-flex; }
.fm-reveal { display: flex; flex-direction: column; gap: 12px; padding-top: 14px; border-top: 1px solid var(--border); }
.fm-reveal[hidden] { display: none; }
.fm-why { margin: 0; font-size: 13.5px; color: var(--muted); }
.fm-table summary { cursor: pointer; font-size: 14px; font-weight: 600; color: var(--accent); }
.fm-table .paradigm { margin-top: 10px; }
.fm-table .pform.is-asked { background: var(--studied); border-radius: 4px; }
@media (max-width: 720px) {
  .fm-head h2 { font-size: 26px; }
  /* one line per row that scrolls sideways, so the question is on screen */
  .fm-controls { gap: 8px; margin-bottom: 14px; }
  .fm-row { align-items: center; gap: 8px; min-width: 0; }
  .fm-row-label { width: 58px; font-size: 11px; }
  .fm-chips { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; min-width: 0; padding: 2px 0; }
  .fm-chips::-webkit-scrollbar { display: none; }
  .fm-chip { flex: none; }
  .fm-stat { min-width: 54px; padding: 6px 8px; }
  .fm-card { padding: 20px 18px; border-radius: 16px; gap: 14px; }
  .fm-choice { font-size: 17px; padding: 12px 8px; }
}