/* film.css - the screen-composition courses (includes/music/film.php, film-lesson.php, film-figs.js): the course pages
   (.fc) and the lesson player's own parts (.fl) on top of Learn's chrome (assets/learn/learn.css). Tokens from
   brainlag.css; light and dark. House rules: no one-sided coloured edges, no 3D lips, no red. */

/* ---------------------------------------------------------------- course page */
.fc-main{padding-top:8px;padding-bottom:56px;display:grid;gap:34px}
.fc-en{max-width:1100px;margin:0 auto;padding:6px 16px 0;text-align:end;font-size:14px}
.fc-en a,.fl-en{color:var(--ink-3);font-weight:700}
.fc-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:28px;align-items:center;margin-top:8px}
.fc-level{display:inline-block;margin:0 0 10px;padding:4px 12px;border-radius:999px;background:var(--study-tint);color:var(--study-ink);font:700 13.5px var(--f-body)}
.fc-hero h1{margin:0 0 10px;font-size:clamp(30px,3.2vw + 12px,48px);line-height:1.08;text-wrap:balance}
.fc-lead{margin:0 0 20px;font-size:clamp(17px,.5vw + 14px,20px);color:var(--ink-2);max-width:34em}
.fc-cta{display:flex;flex-wrap:wrap;gap:10px}
.fc-hero-art svg{display:block;width:100%;height:auto;max-width:460px;margin-inline-start:auto}
@media (max-width:760px){.fc-hero{grid-template-columns:minmax(0,1fr);gap:16px}.fc-hero-art{order:-1}.fc-hero-art svg{max-width:320px;margin:0 auto}}
.fc-h{margin:0 0 14px;font-size:clamp(21px,1vw + 15px,26px)}
.fc-steps{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 6px;align-items:center}
.fc-steps li{display:flex;align-items:center;gap:8px;padding:8px 14px 8px 8px;border-radius:999px;background:var(--sunk);font-weight:650;color:var(--ink-2);min-height:44px}
.fc-steps li .n{display:grid;place-items:center;flex:none;width:28px;height:28px;border-radius:50%;background:var(--surface);color:var(--ink-2);font:800 13px var(--f-body);box-shadow:0 0 0 1px var(--rule)}
.fc-steps li.here{background:var(--study);color:var(--on-study-btn,#06262a)}
.fc-steps li.here .n{background:rgba(255,255,255,.9);color:#06262a;box-shadow:none}
.fc-steps li+li::before{content:"";width:14px;height:2px;background:var(--rule-2);margin-inline:-14px 4px;order:-1;display:none}
.fc-pre{margin:14px 0 0;color:var(--ink-2)}
.fc-along-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:12px}
.fc-along-card,.fc-tool{display:flex;gap:14px;align-items:center;padding:14px 16px;border-radius:var(--r2,18px);background:var(--surface);box-shadow:0 0 0 1px var(--rule);color:var(--ink);text-decoration:none;min-height:72px;transition:box-shadow .15s}
.fc-along-card:hover,a.fc-tool:hover{box-shadow:0 0 0 2px var(--study)}
.fc-along-card b,.fc-tool b{display:block;font-size:16.5px}
.fc-along-card small,.fc-tool small{display:block;color:var(--ink-3);font-size:14px;line-height:1.35;margin-top:2px}
.fc-along-ic,.fc-tool-ic{flex:none;display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--study-tint);color:var(--study-ink)}
.fc-tool.off{opacity:.7}
.fc-tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:12px}
.fc-mods{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.fc-mod{border-radius:var(--r2,18px);background:var(--surface);box-shadow:0 0 0 1px var(--rule);scroll-margin-top:90px}
.fc-mod-row{display:flex;align-items:center;gap:14px;padding:14px 16px;min-height:72px;cursor:pointer;list-style:none;color:var(--ink);text-decoration:none;border-radius:inherit}
.fc-mod-row::-webkit-details-marker{display:none}
.fc-mod-row::marker{content:""}
.fc-mod-n{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--sunk);font:800 17px var(--f-body);color:var(--ink-2)}
.fc-ready .fc-mod-n{background:var(--study-tint);color:var(--study-ink)}
.fc-mod-tx{flex:1;min-width:0}
.fc-mod-tx b{display:block;font-size:17px;line-height:1.25}
.fc-mod-tx small{display:block;color:var(--ink-2);font-size:14.5px;line-height:1.4;margin-top:2px}
.fc-mod-tx small.fc-mod-meta{color:var(--ink-3);font-weight:600;font-size:13.5px}
.fc-badge{flex:none;display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font:700 13px var(--f-body);white-space:nowrap}
.fc-badge.free{background:var(--free-bg);color:var(--free)}   /* free is one colour site-wide (owner, 13 Oct) */
.fc-badge.soon{background:var(--sunk);color:var(--ink-3)}
.fc-badge.plus{background:var(--sunk);color:var(--ink-2);padding:7px}
.fc-mod details[open]>.fc-mod-row{padding-bottom:8px}
.fc-ls{list-style:none;margin:0;padding:0 12px 12px;display:grid;gap:4px}
.fc-ls a,.fc-ls-off{display:flex;align-items:center;gap:12px;padding:10px 10px;border-radius:12px;color:var(--ink);text-decoration:none;min-height:48px}
.fc-ls a:hover{background:var(--sunk)}
.fc-ls-off{color:var(--ink-3)}
.fc-ls .n{flex:none;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--sunk);font:700 13px var(--f-body);color:var(--ink-2)}
.fc-ls .t{flex:1;min-width:0;font-weight:600}
.fc-ls .m{flex:none;color:var(--ink-3);font-size:14px;font-variant-numeric:tabular-nums}
.fc-ls .d{flex:none;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--study);color:#fff}
.fc-plans{padding:22px;border-radius:var(--r2,18px);background:var(--study-tint)}
.fc-plans h2{margin:0 0 6px;font-size:21px}
.fc-plans p{margin:0 0 14px;color:var(--ink-2)}
.fc-about{border-radius:var(--r2,18px);background:var(--sunk);padding:4px 18px}
.fc-about summary{cursor:pointer;font-weight:700;padding:12px 0;min-height:44px;display:flex;align-items:center}
.fc-about p{color:var(--ink-2);margin:0 0 12px;max-width:46em}
.fc-lock{vertical-align:middle}

/* the drawn pictures (film-art.php) */
.fa-card{fill:var(--surface);stroke:var(--rule);stroke-width:1.5}
.fa-stave{stroke:var(--ink-3);opacity:.6;fill:none}
.fa-ink{fill:var(--ink)}
.fa-ink-s{stroke:var(--ink)}
.fa-hl{fill:var(--study)}
.fa-hl-s{stroke:var(--study)}
.fa-contour{fill:none;stroke:var(--study);stroke-width:4;stroke-linecap:round;stroke-linejoin:round;opacity:.55}
.fa-tag rect{fill:var(--study-tint)}
.fa-tag path{stroke:var(--study)}
.fa-screen{fill:var(--sunk)}
.fa-tl{stroke:var(--ink-3);fill:none}
.fa-cue{fill:var(--study)}
.fa-hit{stroke:var(--gold,#e0a100)}
.fa-layers rect{fill:var(--study);opacity:.85}
.fa-layers rect:nth-child(2){opacity:.6}
.fa-layers rect:nth-child(3){opacity:.4}
.fa-hit-c{fill:var(--gold,#e0a100)}
.fc-along-ic svg .fa-stave,.fc-tool-ic svg .fa-stave{stroke:currentColor;opacity:.55}
.fc-along-ic svg .fa-ink,.fc-tool-ic svg .fa-ink{fill:currentColor}
.fc-along-ic svg .fa-ink-s,.fc-tool-ic svg .fa-ink-s{stroke:currentColor}

/* ---------------------------------------------------------------- the lesson player */
.fl{--ln-wrong:#8f5300;--ln-wrong-bg:#fff1d6}
:root[data-theme="dark"] .fl{--ln-wrong:#f2b552;--ln-wrong-bg:#551c2a}   /* wine (--warn-bg), not a dark gold (14 Oct); ink 7.3:1 */
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .fl{--ln-wrong:#f2b552;--ln-wrong-bg:#551c2a}}
.fl .lp-btn,.fl .lp-btn:active,.fl .lq-tile,.fl .lq-tile:active{box-shadow:none}
.fl .lp-btn.go{border:0}
.fl .kbdm-pop .kbd{border-bottom-width:1px}
.fl .lp-top{gap:6px}
.fl-dots{display:flex;align-items:center;gap:5px;min-height:44px;padding:0 6px;text-decoration:none;flex-wrap:nowrap;overflow:hidden;flex:none}
.fl-dots i{flex:none;width:8px;height:8px;border-radius:50%;background:rgba(var(--ink-rgb),.18)}
.fl-dots i.done{background:var(--study)}
.fl-dots i.cur{width:11px;height:11px;background:var(--surface);box-shadow:0 0 0 3px var(--study)}
.fl-dots i.cur.done{background:var(--study)}
.fl-read{flex:none;display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:var(--ink-3);cursor:pointer}
.fl-read:hover,.fl-read.on{background:rgba(var(--ink-rgb),.08);color:var(--study-ink)}
.fl-read:focus-visible{outline:3px solid var(--study-ink);outline-offset:2px}
.fl-en{flex:none;font-size:14px;padding:0 6px;min-height:44px;display:grid;place-items:center}
@media (max-width:420px){.fl-dots{display:none}.fl .fl-kbd{display:none}}
.fl-step{padding-top:8px}
.fl-unit{margin:0 0 4px;font-weight:700;color:var(--study-ink);font-size:14.5px}
.fl h1{margin:0 0 6px;font-size:clamp(26px,2vw + 16px,36px);line-height:1.12;text-wrap:balance}
.fl-lead{margin:0 0 18px;font-size:18px;color:var(--ink-2)}
.fl-meta{margin:0 0 18px;color:var(--ink-3);font-weight:600}
.fl-h{margin:8px 0 6px;font-size:clamp(20px,1vw + 15px,24px);line-height:1.2}
.fl-h.fl-h1{font-size:clamp(24px,1.6vw + 15px,30px);margin-top:4px}
.fl-p{margin:0 0 14px;font-size:17.5px;line-height:1.5;color:var(--ink);max-width:40em}
.fl-reading{background:var(--study-tint);border-radius:6px;box-shadow:0 0 0 4px var(--study-tint)}
.fl-fig{margin:16px 0 18px;display:grid;gap:12px}
.fl-cap{margin:0;font-size:14.5px;font-weight:600;color:var(--ink-3);line-height:1.45}
.fl-try{margin:6px 0 16px;padding:14px 16px;border-radius:var(--r2,18px);background:var(--sunk)}
.fl-try h3{margin:0 0 8px;font-size:16px}
.fl-tasks{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fl-tasks li{display:flex;align-items:center;gap:12px;min-height:40px;font-weight:600;line-height:1.35}
.fl-tick{flex:none;width:24px;height:24px;border-radius:50%;border:2.5px solid var(--ink-3)}
.fl-tasks li.done .fl-tick{border-color:var(--study);background:var(--study) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/16px no-repeat}
.fl-glow{animation:flGlow .9s var(--ease-out,ease-out)}
@keyframes flGlow{0%{box-shadow:0 0 0 0 var(--study)}100%{box-shadow:0 0 0 12px transparent}}
.fl-more{margin:4px 0 18px;border-radius:var(--r2,18px);background:var(--sunk);padding:2px 16px}
.fl-more summary{cursor:pointer;font-weight:700;min-height:44px;display:flex;align-items:center;color:var(--study-ink)}
.fl-more p{margin:0 0 12px;color:var(--ink-2);line-height:1.55;max-width:42em}
.fl-lock-card{margin:18px 0;padding:24px;border-radius:var(--r2,18px);background:var(--study-tint);text-align:center;display:grid;justify-items:center;gap:6px}
.fl-lock-ic{color:var(--study-ink)}
.fl-lock-card h2{margin:6px 0 0;font-size:21px}
.fl-lock-card p{margin:0;color:var(--ink-2);max-width:32em}
.fl-q .fl-qsheet{margin:6px 0 14px}
.fl-sheet{max-width:100%}
.fl-sheet.fl-big{width:100%;max-width:720px}
.fl-done-in{display:grid;justify-items:center;text-align:center;gap:8px;padding:30px 0}
.fl-done-mk{display:grid;place-items:center;width:72px;height:72px;border-radius:50%;background:var(--study);color:#fff}
.fl-done-mk svg{width:40px;height:40px}
.fl-done-score{margin:0;font-size:20px;font-weight:700}
.fl-done-xp{margin:0;color:var(--study-ink);font-weight:800}
.fl-done-p,.fl-done-note{margin:0;color:var(--ink-2);max-width:32em}
.fl-done-act{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:14px}
.fl-topics{list-style:none;margin:10px 0;padding:0;display:grid;gap:8px;width:min(100%,460px);text-align:start}
.fl-topics li{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:14px;background:var(--sunk);min-height:48px}
.fl-topic-mk{flex:none;display:grid;place-items:center;width:28px;height:28px;border-radius:50%}
.fl-topic-mk svg{width:18px;height:18px}
.fl-topics li.ok .fl-topic-mk{background:var(--study);color:#fff}
.fl-topics li.gap .fl-topic-mk{background:var(--ln-wrong-bg);color:var(--ln-wrong)}
.fl-topics .t{flex:1;font-weight:650}
.fl-topics a.t{color:var(--study-ink)}
.fl-topics .n{font-variant-numeric:tabular-nums;color:var(--ink-3);font-weight:700}
.fl-ready-topics{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr));gap:10px}
.fl-ready-topics li{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;background:var(--sunk);font-weight:650;min-height:52px}
.fl-ready-topics .n{flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--study-tint);color:var(--study-ink);font-weight:800}
.fl-check-art{width:100%;max-width:260px}
.fl-check-art .c1{fill:var(--sunk)}.fl-check-art .c2{fill:var(--study-tint)}.fl-check-art .tk{fill:var(--study)}

/* ---------------------------------------------------------------- figures */
.fl-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.fl-play{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px 0 12px;border:0;border-radius:999px;background:var(--study-tint);color:var(--study-ink);font:700 15px var(--f-body);cursor:pointer}
.fl-play:hover{background:color-mix(in srgb,var(--study) 22%,var(--study-tint))}
.fl-play:focus-visible,.fl-seg-b:focus-visible,.fl-chip:focus-visible,.fl-pick:focus-visible{outline:3px solid var(--study-ink);outline-offset:2px}
.fl-play .st{display:none}.fl-play.on .pl{display:none}.fl-play.on .st{display:inline}
.fl-play.on{background:var(--study);color:#fff}
.fl-play.big{min-height:52px;padding:0 22px 0 16px;font-size:16px}
.fl-play.sm{min-height:40px;font-size:14px;padding:0 12px 0 10px}
.fl-seg{display:flex;flex-wrap:wrap;gap:6px}
.fl-seg-b,.fl-chip{min-height:44px;padding:0 14px;border:0;border-radius:12px;background:var(--sunk);color:var(--ink);font:650 15px var(--f-body);cursor:pointer;box-shadow:inset 0 0 0 1.5px var(--rule)}
.fl-seg-b[aria-pressed="true"],.fl-chip[aria-checked="true"]{background:var(--study);color:#fff;box-shadow:none}
:root[data-theme="dark"] .fl-seg-b[aria-pressed="true"],:root[data-theme="dark"] .fl-chip[aria-checked="true"]{color:#06262a}
.fl-chip.ok{background:var(--study);color:#fff;box-shadow:none}
.fl-chip.no{background:var(--ln-wrong-bg);color:var(--ln-wrong);box-shadow:inset 0 0 0 1.5px var(--ln-wrong)}
.fl-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr));gap:10px}
.fl-shape{display:grid;gap:8px;justify-items:start;padding:12px;border-radius:var(--r2,18px);background:var(--sunk);transition:background-color .2s}
.fl-shape.on{background:var(--study-tint)}
.fl-contour{display:block;width:100%;height:auto}
.fl-contour .ln{fill:none;stroke:var(--study);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}
.fl-contour .pt{fill:var(--surface);stroke:var(--study);stroke-width:3}
.fl-contour.thin .ln{stroke-width:3}.fl-contour.thin .pt{r:3.5}
.fl-contour.tgt .ln{stroke:var(--ink-2)}.fl-contour.tgt .pt{stroke:var(--ink-2)}
.fl-contour.no .ln{stroke:var(--ink-3);stroke-dasharray:6 6}.fl-contour.no .pt{stroke:var(--ink-3)}
.fl-shape .fl-contour.big{max-width:240px}
.fl-round{margin:0;color:var(--ink-3);font-weight:700;font-variant-numeric:tabular-nums}
.fl-q-line{margin:4px 0 0;font-weight:700}
.fl-opts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:520px){.fl-opts{grid-template-columns:minmax(0,1fr)}}
.fl-opt{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;padding:10px;border-radius:var(--r2,18px);background:var(--sunk);box-shadow:inset 0 0 0 2px transparent}
.fl-opt .fl-reveal{grid-column:1/-1}
.fl-opt .fl-reveal:empty{display:none}
.fl-opt.is-ok{box-shadow:inset 0 0 0 2px var(--study)}
.fl-opt.chosen-no{box-shadow:inset 0 0 0 2px var(--ln-wrong)}
.fl-pick{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:var(--surface);color:var(--study-ink);cursor:pointer;box-shadow:inset 0 0 0 1.5px var(--rule-2)}
.fl-pick:hover{background:var(--study-tint)}
.answered .fl-pick{visibility:hidden}
.fl-target{max-width:200px}
.fl-fb{margin:0;font-weight:700;min-height:1.4em}
.fl-fb.ok{color:var(--study-ink)}.fl-fb.no{color:var(--ln-wrong)}
.fl-next{justify-self:start}
.fl-under{max-width:360px}
.fl-blocks{display:flex;align-items:stretch;gap:8px;flex-wrap:wrap}
.fl-block{flex:1 1 140px;display:grid;gap:4px;padding:14px;border-radius:var(--r2,18px);background:var(--sunk)}
.fl-block .lab{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--study);color:#fff;font:800 18px var(--f-body)}
.fl-block.b-a2 .lab{background:color-mix(in srgb,var(--study) 60%,var(--surface))}
.fl-block.b-b .lab{background:var(--gold,#e0a100);color:#1d1400}
.fl-block small{color:var(--ink-2);font-size:14px}
.fl-arrow{display:none}
.fl-slots{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
@media (max-width:640px){.fl-slots{grid-template-columns:repeat(2,minmax(0,1fr))}}
.fl-slot{display:grid;align-content:start;gap:6px;padding:10px;border-radius:14px;background:var(--sunk)}
.fl-slot.fixed{background:var(--study-tint)}
.fl-slot-h{margin:0;font-weight:800;font-size:14px;color:var(--ink-2)}
.fl-slot-opts{display:grid;gap:6px}
.fl-slot .fl-chip{width:100%;min-height:40px;font-size:14px;padding:0 8px}
.fl-dev-mid{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--r2,18px);background:var(--study-tint)}
.fl-dev-mid .fl-contour{width:160px}
.fl-tile{display:grid;gap:4px;align-content:start;padding:12px;border-radius:var(--r2,18px);background:var(--sunk)}
.fl-tile small{color:var(--ink-2);font-size:14px;line-height:1.4}
.fl-tile .fl-play{justify-self:start;margin-top:6px}
.fl-tile-art .fl-contour{max-width:160px}
.fl-form{display:grid;gap:6px}
.fl-form-h{margin:0;font-weight:800}
.fl-form-bars,.fl-form-ends{display:flex;gap:4px}
.fl-form-p{display:grid;place-items:center;min-height:52px;padding:4px 6px;border-radius:12px;background:var(--study);color:#fff;font-weight:700;font-size:14px;text-align:center;line-height:1.2;flex-basis:0;min-width:0}
.fl-form-p.p1{background:color-mix(in srgb,var(--study) 70%,var(--surface))}
.fl-form-p.p2{background:color-mix(in srgb,var(--study) 45%,var(--surface));color:var(--ink)}
.fl-form-p.p3{background:var(--gold,#e0a100);color:#1d1400}
.fl-form-p span{overflow-wrap:anywhere}
.fl-form-ends .end{flex-basis:0;text-align:center;font-size:13.5px;font-weight:700;color:var(--ink-3);min-width:0}
.fl-form-ends .end.open{color:var(--ln-wrong)}.fl-form-ends .end.closed{color:var(--study-ink)}
.fl-mini-q{display:grid;gap:8px;padding:14px;border-radius:var(--r2,18px);background:var(--sunk)}
.fl-mini-opts{display:flex;flex-wrap:wrap;gap:8px}
.fl-mini-opts .fl-chip{text-align:start;line-height:1.3;padding:8px 14px}
@media (prefers-reduced-motion:reduce){.fl-glow{animation:none}.fl-shape,.fc-along-card,.fc-tool{transition:none}}
/* a tool on its own page */
.fc-crumb{margin:0 0 6px;font-weight:700}
.fc-crumb a{color:var(--study-ink)}
.fl-tool h1{margin:0 0 8px;font-size:clamp(28px,2.4vw + 14px,40px)}
.fl-tool-panel{padding:16px;border-radius:var(--r2,18px);background:var(--surface);box-shadow:0 0 0 1px var(--rule)}
.fl-tool-head{display:flex;justify-content:flex-end;margin:-6px -6px 0 0}
.fl-tool .fl-fig{margin:0}
.fl-shapes{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:900px){.fl-shapes{grid-template-columns:repeat(4,minmax(0,1fr))}}
.fl-shape .fl-play{max-width:100%}
.fl-fig{grid-template-columns:minmax(0,1fr)}
.fl-fig>*{min-width:0}
.fa-skills .fa-contour{opacity:.8;stroke-width:5}
@media (max-width:760px){.fc-hero-art svg{max-width:280px}}
.fl-slot .fl-contour{height:56px;width:100%}
.fl-under .fl-contour{height:60px}
.fl-target .fl-contour,.fl-reveal .fl-contour{height:64px}
.fl-tip{display:flex;gap:12px;align-items:flex-start;margin:4px 0 16px;padding:14px 16px;border-radius:var(--r2,18px);background:color-mix(in srgb,var(--gold,#e0a100) 16%,var(--surface));color:var(--ink)}
.fl-tip-ic{flex:none;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--gold,#e0a100);color:#1d1400}
.fl-tip-h{margin:0 0 2px;font-weight:800;font-size:14.5px}
.fl-tip-p{margin:0;line-height:1.45}
.fl-tip p{max-width:40em}
.fl-form-p{font-size:clamp(11.5px,2.9vw,14px);hyphens:auto}
.fl-form-p span{overflow-wrap:normal;word-break:normal}
.fl-mini-opts .fl-chip{width:100%;white-space:normal}
@media (min-width:640px){.fl-mini-opts .fl-chip{width:auto}}
@media (max-width:560px){
  .fc-mod-row{display:grid;grid-template-columns:40px minmax(0,1fr);column-gap:14px;row-gap:8px;align-items:start}
  .fc-mod-row .fc-badge{grid-column:2;justify-self:start}
  .fc-mod-row .fc-badge.plus{justify-self:start}
}
.fl-yt{display:flex;gap:14px;align-items:flex-start;margin:6px 0 16px;padding:16px;border-radius:var(--r2,18px);background:var(--surface);box-shadow:0 0 0 1px var(--rule)}
.fl-yt.done{box-shadow:0 0 0 2px var(--study)}
.fl-yt-ic{flex:none;display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--study-tint);color:var(--study-ink)}
.fl-yt-p{margin:0 0 8px;font-size:17px;line-height:1.5;max-width:40em}
.fl-yt-fin{color:var(--ink-2);font-size:15.5px}
.fl-yt-done{display:inline-flex;align-items:center;gap:10px;min-height:44px;margin-top:4px;padding:0 16px 0 10px;border:0;border-radius:999px;background:var(--sunk);color:var(--ink);font:700 15px var(--f-body);cursor:pointer;box-shadow:inset 0 0 0 1.5px var(--rule)}
.fl-yt-done[aria-pressed="true"]{background:var(--study-tint);box-shadow:none}
.fl-yt-done[aria-pressed="true"] .fl-tick{border-color:var(--study);background:var(--study) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/16px no-repeat}
.fl-yt-done:focus-visible{outline:3px solid var(--study-ink);outline-offset:2px}
.fl-src ul{margin:0 0 12px;padding-inline-start:20px}
.fl-src li{margin:0 0 6px}
.fl-src a{color:var(--study-ink);overflow-wrap:anywhere}
.fl .lp-sheet .l{margin:2px 0 0;font-size:15px;line-height:1.4}
.fl-legend{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.fl-legend li{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--sunk);font-weight:650;font-size:14.5px}
.fl-legend .dot{width:12px;height:12px;border-radius:50%;background:var(--ink-3)}
.fl-legend .k-leap .dot{background:var(--study)}
.fl-legend .k-open .dot{background:var(--gold,#e0a100)}
.fl-count{margin:0;font-weight:800;color:var(--study-ink)}
.fl-one .fl-seg-b{text-align:start;line-height:1.25;padding:8px 14px}
.fl-cline{max-width:720px}
.fl-contour.wide{height:auto}
.fl-contour .pt.top{fill:var(--gold,#e0a100);stroke:var(--gold,#e0a100)}
.fl-facts{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.fl-facts li{padding:8px 12px;border-radius:12px;background:var(--sunk);font-size:15px}
.fl-facts li.is-ok{background:var(--study-tint)}
.fl-facts li.is-no{background:var(--ln-wrong-bg);color:var(--ln-wrong)}
.fl-phr{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.fl-phr li{padding:8px 10px;border-radius:12px;background:var(--sunk);font-weight:650;font-size:14px;text-align:center;color:var(--ink-3)}
.fl-phr.on li{background:var(--study-tint);color:var(--study-ink)}
@media (max-width:520px){.fl-phr{grid-template-columns:minmax(0,1fr)}}
.fl-idea-t{gap:6px}
.fl-idea-ic{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--study-tint);color:var(--study-ink)}
.fl-idea-t b{font-size:16.5px;line-height:1.3}
.fc-why{border-radius:var(--r2,18px);background:var(--surface);box-shadow:0 0 0 1px var(--rule)}
.fc-why summary{display:flex;align-items:center;min-height:52px;padding:0 18px;cursor:pointer;font-weight:700}
.fc-why .mu-why-b{padding:0 18px 14px}
.fc-why .mu-why-b p{margin:0 0 10px;color:var(--ink-2);line-height:1.55;max-width:46em}
.fc-why .mu-why-v,.fc-why .mu-why-n{color:var(--ink-3);font-size:15px}
.fc-why a{color:var(--study-ink)}
.fl .lp-sheet .l{margin-top:6px}
.fc-ready-band{padding-top:0}
.fc-ready-link{display:flex;align-items:center;gap:14px;max-width:560px;padding:16px 18px;border-radius:var(--r2,18px);background:var(--surface);box-shadow:0 0 0 1px var(--rule);color:var(--ink);text-decoration:none}
.fc-ready-link:hover{box-shadow:0 0 0 2px var(--study)}
.fc-ready-link b{display:block}
.fc-ready-link small{display:block;color:var(--ink-3);margin-top:2px}
.fc-ready-ic{flex:none;display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--study-tint);color:var(--study-ink)}
.fl-deck-pick{position:relative;display:flex;justify-content:center}
.fl-deck-pickb{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px 0 16px;border:0;border-radius:999px;background:var(--sunk);color:var(--ink);font:700 15px var(--f-body);cursor:pointer;box-shadow:inset 0 0 0 1.5px var(--rule)}
.fl-deck-pickb:focus-visible,.fl-deck-mi:focus-visible,.fl-card:focus-visible,.fl-card-keep:focus-visible,.fl-deck-timer:focus-visible,.fl-deck-draw:focus-visible{outline:3px solid var(--study-ink);outline-offset:3px}
.fl-deck-menu{position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%);z-index:40;min-width:220px;margin:0;padding:6px;list-style:none;border-radius:16px;background:var(--surface);box-shadow:0 0 0 1px var(--rule),0 16px 36px rgba(6,14,26,.18)}
.fl-deck-mi{display:flex;align-items:center;width:100%;min-height:44px;padding:0 14px;border:0;border-radius:10px;background:transparent;color:var(--ink);font:600 15px var(--f-body);text-align:start;cursor:pointer}
.fl-deck-mi:hover{background:var(--sunk)}
.fl-deck-mi[aria-checked="true"]{background:var(--study-tint);color:var(--study-ink)}
.fl-deck{display:grid;place-items:center;padding:6px 0 4px}
.fl-card{position:relative;display:grid;align-content:center;gap:12px;width:min(100%,480px);height:min(60vh,520px);min-height:300px;padding:40px 30px;border-radius:24px;background:var(--surface);box-shadow:0 0 0 1px var(--rule),0 18px 40px rgba(6,14,26,.12);text-align:center;cursor:pointer;touch-action:pan-y;user-select:none}
.fl-card.is-back{background:var(--study)}
.fl-card .fl-card-back{display:none;font:800 32px var(--f-display);color:#fff;padding:0 10px}
.fl-card.is-back .fl-card-back{display:block}
.fl-card.is-back .fl-card-cat,.fl-card.is-back .fl-card-tx{display:none}
.fl-card-cat{justify-self:center;padding:4px 12px;border-radius:999px;background:var(--study-tint);color:var(--study-ink);font:700 13.5px var(--f-body)}
.fl-card-tx{margin:0;font:650 clamp(22px,1.4vw + 16px,30px)/1.32 var(--f-display);color:var(--ink);text-wrap:balance}
.fl-card-keep{position:absolute;top:10px;right:10px;display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:var(--ink-3);cursor:pointer}
.fl-card-keep:hover{background:var(--sunk);color:var(--ink)}
.fl-card-keep[aria-pressed="true"]{color:var(--study)}
.fl-card-keep[aria-pressed="true"] path{fill:currentColor}
.fl-ring{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.fl-ring-r{fill:none;stroke:var(--study);stroke-width:3;stroke-dasharray:100;stroke-dashoffset:100;opacity:0;transition:stroke-dashoffset 1s linear}
.fl-card.timing .fl-ring-r{opacity:1;stroke-dashoffset:calc(100 - var(--ring, 0))}
.fl-card.is-back .fl-ring-r{stroke:#fff}
.fl-card.flip{animation:flFlip .4s var(--ease-out,ease-out)}
@keyframes flFlip{0%{transform:rotateY(70deg) scale(.97);opacity:.3}100%{transform:none;opacity:1}}
.fl-deck-kept-d{margin-top:4px}
.fl-deck-kept{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:8px}
.fl-deck-kept li{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;background:var(--surface)}
.fl-deck-kept li.none{color:var(--ink-3)}
.fl-deck-kept .cat{flex:none;padding:3px 10px;border-radius:999px;background:var(--sunk);font:700 12.5px var(--f-body);color:var(--ink-2)}
.fl-deck-kept .tx{flex:1;min-width:0}
.fl-deck-x{flex:none;display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:var(--ink-3);cursor:pointer}
.fl-deck-x:hover{background:rgba(var(--ink-rgb),.08);color:var(--ink)}
.fl-deck-bar{position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--paper);border-top:1px solid var(--rule)}
.fl-deck-bar-in{max-width:900px;margin:0 auto;display:flex;gap:12px;align-items:center;padding:12px 16px calc(12px + env(safe-area-inset-bottom))}
.fl-deck-timer{flex:none;display:grid;place-items:center;width:56px;height:56px;border:0;border-radius:50%;background:var(--sunk);color:var(--ink);cursor:pointer;box-shadow:inset 0 0 0 1.5px var(--rule)}
.fl-deck-timer[aria-pressed="true"]{background:var(--study-tint);color:var(--study-ink);box-shadow:inset 0 0 0 2px var(--study)}
.fl-deck-draw{flex:1;min-height:56px;border:0;border-radius:16px;background:var(--study-btn,#0b7d86);color:#fff;font:800 17px var(--f-body);cursor:pointer}
.fl-deck-draw:hover{filter:brightness(1.05)}
body.fl-has-bar{padding-bottom:96px}
.fl-deck-about{margin-top:18px}
.fl-deck-about p{font-size:14px}
@media (min-width:900px){.fl-deck-bar-in{justify-content:flex-end}.fl-deck-draw{flex:0 0 auto;min-width:240px}}
@media (prefers-reduced-motion:reduce){.fl-card.flip{animation:none}.fl-ring-r{transition:none}}
.fl-tool-panel.is-deck{background:none;box-shadow:none;padding:0}
.fl-tool-panel.is-deck .fl-tool-head{margin:0 0 -44px}
.fl-card{height:clamp(300px,calc(100svh - 360px),520px)}
.fl-tool:has(.is-deck){gap:18px}

/* the deck, final spacing (coordinator, 12 Oct) */
.fl-tool:has(.is-deck){gap:16px}
.fl-tool:has(.is-deck) .fc-lead{margin:0}
.fl-tool-panel.is-deck .fl-tool-head{margin:0 0 -44px;min-height:44px}
.fl-tool-panel.is-deck .fl-fig{gap:16px}
.fl-deck-pick{justify-content:flex-start}
@media (pointer:coarse){.fl-tool .kbdm,.fl-tool .fl-kbd{display:none}}
.fl-card{height:clamp(320px,calc(100svh - 360px),60vh)}
.fl-card.is-back{background:var(--surface)}
.fl-card .fl-card-back{color:var(--ink);font:inherit}
.fl-card-back b{display:block;font:800 30px var(--f-display);color:var(--study-ink)}
.fl-card-back small{display:block;margin-top:6px;font:600 16px var(--f-body);color:var(--ink-3)}
.fl-card.is-back .fl-ring-r{stroke:var(--study)}
.fl-deck-bar{position:sticky;bottom:0;left:auto;right:auto;margin:0;background:var(--paper);border-top:1px solid var(--rule)}
.fl-deck-bar-in{padding:12px 16px calc(12px + env(safe-area-inset-bottom))}
body.fl-has-bar{padding-bottom:0}

/* the ring shows only once the timer has run 1%: no start cap while idle or just started */
.fl-ring{display:none}.fl-card.timing.ring-on .fl-ring{display:block}
/* the dice game */
.fl-dice-top{display:flex;align-items:center;gap:14px}
.fl-dice{flex:none;display:flex;gap:8px}
.fl-die svg rect{fill:var(--surface);stroke:var(--ink-2);stroke-width:2}
.fl-die svg circle{fill:var(--ink)}
.fl-dice.roll{animation:flRoll .5s var(--ease-out,ease-out)}
@keyframes flRoll{0%{transform:rotate(-25deg) scale(.85)}60%{transform:rotate(10deg) scale(1.05)}100%{transform:none}}
.fl-dice-said{margin:0;font-weight:650;color:var(--ink-2);line-height:1.4}
.fl-dice-sheet[hidden]{display:none}
.fl-dice-tablewrap{overflow-x:auto;padding-bottom:4px}
.fl-dice-table{display:grid;gap:3px;min-width:300px}
.fl-dt-row{display:grid;grid-template-columns:22px repeat(16,minmax(10px,1fr));gap:3px;align-items:center}
.fl-dt-t{font:700 11.5px var(--f-body);color:var(--ink-3);text-align:end;padding-inline-end:4px;font-variant-numeric:tabular-nums}
.fl-dt-c{height:12px;border-radius:4px;background:var(--sunk)}
.fl-dt-c.half{margin-inline-start:4px}
.fl-dt-c.on{background:var(--study)}
.fl-dt-c.cur{box-shadow:inset 0 0 0 1.5px var(--study)}
.fl-dice-code{font-variant-numeric:tabular-nums}
.fl-dice-rep{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-weight:600}
.fl-dice-rep input{width:22px;height:22px;accent-color:var(--study)}
.fl-dice-play .st{display:none}.fl-dice-play[aria-pressed="true"] .pl{display:none}.fl-dice-play[aria-pressed="true"] .st{display:inline}
.fl-dice-allrow{display:flex;margin:-8px 0 -4px}
.fl-dice-all{min-height:44px;padding:0 4px;border:0;background:none;color:var(--study-ink);font:700 15px var(--f-body);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.fl-dice-all:focus-visible{outline:3px solid var(--study-ink);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){.fl-dice.roll{animation:none}}

.fl-dt-h{font:700 10.5px var(--f-body);color:var(--ink-3);text-align:center;font-variant-numeric:tabular-nums;border-radius:4px;line-height:16px}
.fl-dt-h.half{margin-inline-start:4px}
.fl-dt-h.done{color:var(--ink-2)}
.fl-dt-h.cur{background:var(--study);color:#fff}
.fl-dt-c.cur{background:var(--study-tint);box-shadow:none}
/* the score figure (Skills, Module 2) */
.fl-parts .fl-part-b{min-width:44px}
.fl-score-x{display:grid;gap:8px}
.fl-score-x .fl-contour{max-width:360px;height:60px}
.fl-tally{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.fl-tally li{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--sunk);font-size:14.5px;font-weight:600}
.fl-tally .dot{width:12px;height:12px;border-radius:50%}
.fl-tally .m-contrary .dot{background:#0d8a95}.fl-tally .m-oblique .dot{background:#b7791f}.fl-tally .m-similar .dot{background:#6b7686}.fl-tally .m-parallel .dot{background:#5b5bd6}
.fl-tally b{font-variant-numeric:tabular-nums}
.fl-warn{color:var(--ln-wrong)!important}
.fl-gaps{list-style:none;margin:0;padding:0;display:grid;gap:6px;max-width:420px}
.fl-gaps li{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;border-radius:12px;background:var(--sunk);font-size:14.5px}
.fl-gaps li.cross{background:var(--ln-wrong-bg);color:var(--ln-wrong)}
.fl-standin{font-style:italic}
.fl-loop{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.fl-loop-l{font-weight:700}
.fl-assign{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr));gap:8px}
.fl-assign-s{display:grid;gap:4px;font-weight:650;font-size:14px;color:var(--ink-2)}
.fl-select{min-height:44px;padding:0 10px;border-radius:12px;border:0;background:var(--sunk);color:var(--ink);font:600 15px var(--f-body);box-shadow:inset 0 0 0 1.5px var(--rule)}
.fl-wheel-box{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.fl-wheel{width:min(100%,300px);height:auto}
.fl-wheel .seg{stroke:var(--paper);stroke-width:2}
.fl-wheel .s-perfect{fill:color-mix(in srgb,var(--study) 25%,var(--surface))}
.fl-wheel .s-imperfect{fill:color-mix(in srgb,var(--study) 55%,var(--surface))}
.fl-wheel .s-dissonant{fill:#b7791f}
.fl-wheel text{font:700 12px var(--f-body);text-anchor:middle;fill:var(--ink)}
.fl-wheel text.t-dissonant{fill:#fff}
.fl-wheel-key .dot.s-perfect{background:color-mix(in srgb,var(--study) 25%,var(--surface));box-shadow:inset 0 0 0 1px var(--rule)}
.fl-wheel-key .dot.s-imperfect{background:color-mix(in srgb,var(--study) 55%,var(--surface))}
.fl-wheel-key .dot.s-dissonant{background:#b7791f}
.fa-skills .fa-contour{opacity:1;stroke-width:4}
.fa-dot{fill:var(--surface);stroke:var(--study);stroke-width:3.5}
.fa-axis{fill:none;stroke:var(--ink-3);stroke-width:1.6;stroke-linecap:round}
.fa-guide{stroke:var(--rule-2,var(--rule));stroke-width:1.2;stroke-dasharray:3 4}
.fa-lab{font:700 12px var(--f-body);fill:var(--ink-3)}
/* a list of ideas without icons: compact rows, a hairline apart */
.fl-rows{list-style:none;margin:0;padding:0;display:grid;gap:0;border-radius:var(--r2,18px);background:var(--sunk);padding:4px 14px}
.fl-row-i{display:grid;gap:2px;padding:10px 0}
.fl-row-i+.fl-row-i{border-top:1px solid var(--rule)}
.fl-row-i b{font-size:16px;line-height:1.3}
.fl-row-i small{color:var(--ink-2);font-size:14px;line-height:1.4}
/* tools: one paper panel (notation is always black on white), a row per technique: name, line and Play on one
   header row, the tiny before-and-after directly under it, rows a hairline apart */
.fl-tools{list-style:none;margin:0;padding:2px 12px;background:#fff;color:#111;border:2px solid var(--rule-2);border-radius:var(--r1,14px)}
.fl-tool{display:grid;gap:2px;padding:8px 0}
.fl-tool+.fl-tool{border-top:1px solid #e3e6ea}
.fl-tool-h{display:flex;align-items:center;gap:10px}
.fl-tool-t{flex:1;margin:0;font-size:14.5px;line-height:1.35;color:#3d4652}
.fl-tool-t b{color:#111;font-size:15.5px}
.fl-tools .fl-play{background:#e3f3f4;color:#0b6f78}
.fl-tools .fl-sheet{background:transparent;border:0;border-radius:0;padding:0;max-width:100%}
.fl-tool-ch{margin:0;font-size:14px;font-weight:700;color:#3d4652}
/* every tiny example starts at the row's left edge, directly under its header (no centring of a narrower system) */
.fl-tools .mn-sheet{display:block}
.fl-tools .mn-host{min-height:0;display:block;text-align:left}
.fl-tools .mn-host svg{display:block;margin:0}
/* mirror: the chromatic circle and its axis (negative harmony) */
.fl-mirror{position:relative;width:min(100%,300px);aspect-ratio:1;margin:4px auto}
.fl-mirror svg{width:100%;height:100%;display:block}
.fl-mirror .ring{fill:none;stroke:var(--rule);stroke-width:2}
.fl-mirror .axis{stroke:var(--ink-2);stroke-width:2;stroke-dasharray:6 5}
.fl-mirror .link{stroke:var(--ink-3,#8892a0);stroke-width:2}
.fl-mirror .pc{fill:var(--rule)}
.fl-mirror .pc.on{fill:#0d8a95}
.fl-mirror .pc.mir{fill:#a15c00}
.fl-mirror .pc.both{fill:#0d8a95;stroke:#a15c00;stroke-width:4}
.fl-mirror-n{position:absolute;transform:translate(-50%,-50%);font-size:13px;font-weight:600;color:var(--ink-2);white-space:nowrap}
.fl-mirror-n.is-on{color:var(--ink);font-weight:800}
.fl-mirror-r{text-align:center;font-weight:700;margin:0}
.fl-dash{display:inline-block;width:18px;height:0;border-top:2px dashed var(--ink-2);margin-right:2px}
.fl .vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
/* a link from a lesson figure to its course tool */
.fl-toollink{display:inline-flex;align-items:center;gap:6px;margin-top:4px;font-weight:700;color:var(--study-ink,#0b6f78);text-decoration:none}
.fl-toollink:hover span{text-decoration:underline}
/* odds: two dice and the eleven totals */
.fl-odds-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.fl-odds-dice{display:flex;gap:8px}
.fl-die{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;background:var(--sunk);border:2px solid var(--rule-2);font-weight:800;font-size:20px;font-variant-numeric:tabular-nums}
.fl-odds-st{margin:0;font-weight:700}
.fl-odds-chart svg{width:100%;max-width:520px;display:block}
.fl-odds-chart .exp{fill:none;stroke:var(--ink-3,#8892a0);stroke-width:1.5;stroke-dasharray:3 3}
.fl-odds-chart .obs{fill:#0d8a95}
.fl-odds-chart .obs.hit{fill:#a15c00}
.fl-odds-chart text{font-size:12px;font-weight:700;fill:var(--ink-2)}
.fl-odds-chart text.hit{fill:#a15c00}
.fl-odds-key{display:inline-block;width:14px;height:14px;border-radius:3px}
.fl-odds-key.exp{border:1.5px dashed var(--ink-3,#8892a0)}
.fl-odds-key.obs{background:#0d8a95}
/* coins: three charts of eight cells */
.fl-coins{display:grid;gap:10px}
.fl-coin-row{display:grid;gap:6px}
.fl-coin-h{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.fl-coin-h b{min-width:84px}
.fl-coin-cs{font-weight:700;color:var(--ink-2);letter-spacing:.04em}
.fl-coin-cells{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:4px}
.fl-coin-cells li{display:grid;place-items:center;min-height:40px;border-radius:8px;background:var(--sunk);font-weight:700;font-size:14px;border:2px solid transparent;text-align:center}
.fl-coin-cells li.on{border-color:#a15c00;background:color-mix(in srgb,#a15c00 16%,var(--sunk))}
.fl-coin-cells li.fx{border-color:#0d8a95}
/* timer: palette, clock, note */
.fl-palette{display:grid;gap:8px}
.fl-pal-row{display:grid;gap:4px}
.fl-pal-l{font-weight:700}
.fl-clock{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fl-clock-ring{position:relative;width:132px;height:132px}
.fl-clock-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.fl-clock-ring .bg{fill:none;stroke:var(--rule);stroke-width:10}
.fl-clock-ring .fg{fill:none;stroke:#0d8a95;stroke-width:10;stroke-linecap:round;transition:stroke-dashoffset .4s linear}
.fl-clock-t{position:absolute;inset:0;display:grid;place-items:center;font-size:28px;font-weight:800;font-variant-numeric:tabular-nums}
.fl-clock-side{display:grid;gap:10px}
.fl-note{display:grid;gap:6px}
.fl-note-l{font-weight:700}
.fl-note-t{width:100%;box-sizing:border-box;min-height:88px;padding:10px 12px;border-radius:12px;border:2px solid var(--rule-2);background:var(--card,#fff);color:var(--ink);font:inherit;font-size:16px}
/* cardpeek: one of our stuck cards */
.fl-peek{display:grid;align-content:center;gap:8px;min-height:150px;padding:18px 20px;border-radius:var(--r2,18px);background:#0d8a95;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.12)}
.fl-peek.back{background:var(--sunk);color:var(--ink-2);border:2px dashed var(--rule-2);box-shadow:none}
.fl-peek p{margin:0;font-size:19px;font-weight:700;line-height:1.35}
.fl-peek-cat{font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;opacity:.85}
.fl-peek.flip{animation:flPeek .35s ease}
@keyframes flPeek{from{transform:rotateY(80deg)}to{transform:none}}
@media (prefers-reduced-motion:reduce){.fl-peek.flip{animation:none}}
.fl-dyn{font:400 26px/1 "BL Bravura";position:relative;top:-2px}
.fl-durg{font-size:28px;top:4px}
/* the house action button: Play's size and shape; the one primary action filled */
.fl-play.is-primary{background:var(--study-ink);color:#fff}
.fl-play.is-primary:hover{background:color-mix(in srgb,var(--study-ink) 86%,#000)}
.fl-quiet{display:inline-grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:var(--ink-2);cursor:pointer}
.fl-quiet:hover{background:var(--sunk);color:var(--ink)}
.fl-quiet:focus-visible{outline:3px solid var(--study-ink);outline-offset:2px}
.fl-row-c{justify-content:center}
/* the timer: ring, lengths and Start centred in the column */
.fl-clock.fl-clock-c{flex-direction:column;justify-content:center}
.fl-clock-c .fl-clock-side{justify-items:center}
/* a small stuck card for a lesson: face down in the card-back pattern until drawn */
.fl-card.fl-card-sm{justify-self:center;margin:0 auto;width:min(100%,340px);height:auto;min-height:200px;padding:28px 22px;border:0}
.fl-card.fl-card-sm .fl-card-tx{font-size:clamp(19px,1vw + 14px,23px)}
.fl-card.fl-card-sm.is-back{background-color:var(--study);background-image:radial-gradient(rgba(255,255,255,.22) 1.6px,transparent 1.8px),radial-gradient(rgba(255,255,255,.12) 1.6px,transparent 1.8px);background-size:18px 18px;background-position:0 0,9px 9px;box-shadow:inset 0 0 0 8px var(--study),inset 0 0 0 10px rgba(255,255,255,.55),0 18px 40px rgba(6,14,26,.12)}
.fl-card.flip{animation:flFlip .32s ease}
@keyframes flFlip{0%{transform:rotateY(0)}50%{transform:rotateY(90deg)}100%{transform:rotateY(0)}}
@media (prefers-reduced-motion:reduce){.fl-card.flip{animation:none}}