/* The octoechos (js/octoechos-page.js): the Echos selector in the header,
   Learn's little menu, and the page of the eight modes, on the choir's tokens */

/* the selector: after the header's other controls (on a 1280 screen it opens the second row, beside Edit) */
header > .echos { order: 10; }
.echos[hidden] { display: none; }
.echos select { font-family: var(--label); letter-spacing: 0.03em; font-size: 13px; color: var(--gold); }
body[data-room="studio"] .echos, body[data-room="lab"] .echos { display: none !important; }
@media (max-width: 600px) {
  body:not([data-room="studio"]):not(.ch-more) header > .echos { display: none; }
}

#learnMenu { position: fixed; z-index: 70; display: flex; flex-direction: column; gap: 4px; padding: 6px; background: var(--stone); border: 1px solid var(--line); border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); }
#learnMenu[hidden] { display: none; }
#learnMenu button { text-align: left; }
.fx-octo { margin-left: auto; white-space: nowrap; }
.fx-octo[hidden] { display: none; }

/* the page */
#octo { position: fixed; inset: 0; z-index: 60; background: color-mix(in srgb, var(--nave) 72%, transparent); backdrop-filter: blur(3px); display: flex;
  padding: max(12px, env(safe-area-inset-top, 0px)) max(12px, env(safe-area-inset-right, 0px)) max(12px, env(safe-area-inset-bottom, 0px)) max(12px, env(safe-area-inset-left, 0px)); }
#octo[hidden] { display: none; }
.ocWin { flex: 1; min-width: 0; display: grid; grid-template-rows: auto minmax(0, 1fr); background: var(--stone); border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55); }
.ocBar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--stone-2); }
.ocBrand { font-family: var(--display); font-size: 19px; font-weight: 700; white-space: nowrap; }
.ocBrand em { color: var(--rubric); font-style: normal; font-weight: 400; }
.ocWeek { font-family: var(--label); font-size: 12.5px; color: var(--dim); }
button.ocWeek { color: var(--gold); }
#ocClose { margin-left: auto; }
.ocGrid { display: grid; grid-template-columns: 190px minmax(0, 1fr); min-height: 0; }
#ocNav { overflow-y: auto; border-right: 1px solid var(--line); padding: 12px 10px; display: flex; flex-direction: column; gap: 3px; }
#ocNav button { display: flex; flex-direction: column; align-items: flex-start; gap: 0; text-align: left; background: none; border: 1px solid transparent; padding: 4px 8px;
  font-family: var(--display); font-size: 15px; letter-spacing: 0; }
#ocNav button small { font-size: 12px; color: var(--dim); }
#ocNav button:hover { border-color: var(--line); background: var(--stone-2); }
#ocNav button.on { border-color: var(--gold); background: color-mix(in srgb, var(--gold) 14%, var(--stone)); }
#ocMain { overflow-y: auto; padding: 18px clamp(14px, 3vw, 36px) 40px; }
.ocHead { max-width: 72ch; margin-bottom: 14px; }
.ocHead .kicker { margin: 0; font-family: var(--label); letter-spacing: 0.08em; font-size: 13px; color: var(--rubric); text-transform: lowercase; }
.ocHead h2 { font-family: var(--display); font-size: clamp(24px, 3vw, 34px); line-height: 1.1; margin: 4px 0 6px; font-weight: 700; }
.ocHead h2 span { font-weight: 400; color: var(--dim); font-size: 0.62em; margin-left: 6px; }
.ocHead .meta { margin: 0; color: var(--dim); font-size: 15px; }
.ocHead .meta b { color: var(--gold); font-weight: 500; }
.ocCols { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(250px, 1fr); gap: 22px; align-items: start; }
.ocLadderBox { min-width: 0; }
.ocCmp { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 8px; }
.ocCmp label { display: flex; align-items: center; gap: 6px; }
#ocLadder { display: block; width: 100%; height: auto; }
.ocSide section { margin-bottom: 18px; }
.ocSide h3 { font-family: var(--label); letter-spacing: 0.08em; font-size: 14px; text-transform: lowercase; color: var(--gold); margin: 0 0 8px; font-weight: 700; }
.ocBtns { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-bottom: 6px; }
.ocOr { font-family: var(--label); font-size: 12px; color: var(--dim); margin-left: 4px; }
.ocNote { margin: 4px 0; color: var(--dim); font-size: 14px; line-height: 1.45; max-width: 60ch; }
.ocNote a { color: var(--gold); }
.ocHz { font-family: var(--mono); font-size: 12px; color: var(--vellum); }
.ocSrc { margin: 0; padding-left: 18px; color: var(--dim); font-size: 13.5px; line-height: 1.45; }
.ocSrc li { margin-bottom: 4px; }

/* the ladder's drawing */
#ocLadder .ocBg { fill: var(--nave); }
#ocLadder .ocKey { stroke: var(--line); stroke-width: 0.6; stroke-dasharray: 2 3; }
#ocLadder .ocKey.w { stroke: #454c5a; stroke-dasharray: none; }
#ocLadder text { font-family: var(--label); fill: var(--dim); }
#ocLadder .ocKeyT { font-size: 10px; font-family: var(--mono); }
#ocLadder .ocHdr { font-size: 11px; letter-spacing: 0.06em; fill: var(--gold); text-transform: lowercase; }
#ocLadder .ocRail { stroke: #6d6450; stroke-width: 1.5; }
#ocLadder .ocRung line { stroke: var(--ivory); stroke-width: 2.4; stroke-linecap: round; }
#ocLadder .ocRung .ocName { font-size: 13px; fill: var(--vellum); font-family: var(--display); }
#ocLadder .ocRung.base line { stroke: var(--gold); stroke-width: 3.4; }
#ocLadder .ocRung.base .ocName { fill: var(--gold); font-weight: 700; }
#ocLadder .ocRung.now line { stroke: var(--rubric); stroke-width: 4; }
#ocLadder .ocIson { font-size: 10px; fill: var(--gold); }
#ocLadder .ocMed { fill: var(--rubric); }
#ocLadder .ocStep { font-size: 14px; font-family: var(--mono); fill: var(--vellum); }
#ocLadder .ocCents { font-size: 10px; font-family: var(--mono); }
#ocLadder .ocNear { font-size: 10px; }
#ocLadder .ocNear.far { fill: var(--rubric); }
#ocLadder .ocRung.tgt line { stroke: var(--ok); stroke-width: 4; }
#ocLadder .ocRung.tgt .ocName { fill: var(--ok); font-weight: 700; }
.ocLadderBox #ocLadder { margin: 0 auto; }

/* the lesson: voice, steps, the step's card, its badges, the lane, the result */
.ocLesson { min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.ocVoiceRow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.ocVoiceRow label { display: flex; align-items: center; gap: 6px; }
.ocIsonAt { font-size: 13.5px; color: var(--dim); }
.ocIsonAt b { color: var(--gold); font-weight: 500; }
#ocRangeBtn.on { border-color: var(--gold); color: var(--gold); }

.ocSteps { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.ocStepB { display: flex; align-items: center; gap: 6px; padding: 4px 10px 4px 4px; border-radius: 999px; background: var(--stone-2); border: 1px solid var(--line); color: var(--dim);
  font-family: var(--label); font-size: 13px; letter-spacing: 0.02em; text-transform: none; }
.ocStepB .num { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--line); font-family: var(--mono); font-size: 11.5px; }
.ocStepB .st { color: var(--gold); font-size: 11px; letter-spacing: 0; }
.ocStepB .st:empty { display: none; }
.ocStepB.done { color: var(--vellum); }
.ocStepB.done .num { background: var(--gold); border-color: var(--gold); color: var(--nave); font-weight: 700; }
.ocStepB.cur { border-color: var(--gold); color: var(--vellum); background: color-mix(in srgb, var(--gold) 12%, var(--stone)); }
.ocStepB.cur .num { border-color: var(--gold); }

.ocCard { background: var(--nave); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px 12px; min-width: 0; }
.ocStepNo { margin: 0; font-family: var(--label); font-size: 12.5px; letter-spacing: 0.08em; color: var(--rubric); text-transform: lowercase; }
.ocCard h3 { margin: 2px 0 6px; font-family: var(--display); font-size: 22px; line-height: 1.15; font-weight: 700; }
.ocDo { margin: 0 0 8px; font-size: 16px; line-height: 1.5; max-width: 62ch; }
.ocDo b { color: var(--gold); font-weight: 600; }
.ocHow { list-style: none; margin: 0 0 10px; padding: 0; display: flex; flex-wrap: wrap; gap: 5px; }
.ocHow li { font-family: var(--label); font-size: 12.5px; color: var(--dim); border: 1px solid var(--line); border-radius: 4px; padding: 1px 7px; }
.ocCtl { margin-bottom: 4px; }
.ocListen.on { border-color: var(--rubric); color: var(--rubric); }
.ocNext { margin-left: auto; }
.ocNext.go { background: var(--gold); border-color: var(--gold); color: var(--nave); font-weight: 700; }
.ocNext[hidden] { display: none; }
.ocNote:empty { display: none; }

.ocBadges { list-style: none; margin: 10px 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.ocBadge button { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 58px; height: 58px; padding: 4px 8px;
  border-radius: 10px; border: 1px dashed var(--line); background: var(--stone); color: var(--dim); text-transform: none; letter-spacing: 0; transition: border-color .2s, background .2s, color .2s; }
.ocBadge .syl { font-family: var(--display); font-size: 19px; line-height: 1.05; }
.ocBadge .pn { font-family: var(--mono); font-size: 10.5px; color: var(--dim); }
.ocBadge .gr { position: absolute; top: -8px; right: -4px; font-size: 10.5px; color: var(--gold); background: var(--nave); padding: 0 3px; border-radius: 4px; letter-spacing: 0; }
.ocBadge .gr:empty { display: none; }
.ocBadge.cont button { border-left-style: dotted; }
.ocBadge.cur button { border: 2px solid var(--gold); color: var(--vellum); background: color-mix(in srgb, var(--gold) 10%, var(--stone)); }
.ocBadge.got button { border: 2px solid var(--ok); color: var(--vellum); background: color-mix(in srgb, var(--ok) 22%, var(--stone)); }
.ocBadge.got .syl::after { content: " ✓"; color: var(--ok); font-size: 14px; }
.ocBadge.pop button { animation: ocPop .45s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes ocPop { 0% { transform: scale(.85); } 60% { transform: scale(1.14); } 100% { transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { .ocBadge.pop button { animation: none; } .ocBadge button { transition: none; } }

.ocRange { margin: 6px 0 10px; padding: 8px 10px; border: 1px solid var(--gold); border-radius: 8px; font-size: 15px; }
.ocRange[hidden] { display: none; }
#ocRangeNow { font-family: var(--mono); color: var(--gold); }

.ocLane { display: block; width: 100%; height: auto; margin-top: 4px; }
.ocLane .ocLBg { fill: var(--stone); }
.ocLane .ocBand { fill: color-mix(in srgb, var(--ok) 20%, transparent); }
.ocLane .ocBandIn { fill: color-mix(in srgb, var(--ok) 16%, transparent); }
.ocLane .ocZero { stroke: var(--ok); stroke-width: 1.2; }
.ocLane .ocGridL { stroke: var(--line); stroke-dasharray: 3 4; }
.ocLane text { font-family: var(--label); fill: var(--dim); font-size: 12px; }
.ocLane .ocTick { font-family: var(--mono); font-size: 10.5px; }
.ocLane .ocLbl.sharp, .ocLane .ocLbl.flat { fill: var(--dim); font-size: 12.5px; }
.ocLane .ocTgt { font-family: var(--display); font-size: 18px; fill: var(--ok); font-weight: 700; }
.ocLane .ocLine { fill: none; stroke: var(--vellum); stroke-width: 2.4; stroke-linejoin: round; stroke-linecap: round; }
.ocLane .ocLDot { fill: var(--rubric); stroke: var(--nave); stroke-width: 2; }
.ocLane .ocLDot.in { fill: var(--ok); }
.ocLane .ocMark { stroke: var(--ok); stroke-width: 1; stroke-dasharray: 2 3; }
.ocLane .ocMarkT { fill: var(--ok); font-family: var(--display); font-size: 12px; }

.ocRead { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; margin-top: 6px; }
.ocNum { font-family: var(--mono); font-size: 26px; min-width: 3.6ch; color: var(--vellum); }
.ocWord { font-family: var(--label); font-size: 15px; color: var(--dim); }
.ocRead.in .ocNum, .ocRead.in .ocWord { color: var(--ok); }
.ocRead.off .ocNum, .ocRead.off .ocWord { color: var(--rubric); }
.ocHold { flex: 1 1 90px; max-width: 200px; height: 6px; border-radius: 3px; background: var(--stone-2); overflow: hidden; }
.ocHold i { display: block; height: 100%; width: 0; background: var(--ok); }
.ocHint { flex-basis: 100%; color: var(--gold); font-size: 14px; }
.ocHint:empty { display: none; }

.ocResult { border: 1px solid color-mix(in srgb, var(--ok) 55%, var(--line)); border-radius: 10px; padding: 10px 14px; background: color-mix(in srgb, var(--ok) 6%, var(--stone)); }
.ocResult[hidden] { display: none; }
.ocResHead { margin: 0 0 6px; font-size: 15.5px; }
.ocResHead .ok { color: var(--ok); font-family: var(--label); font-weight: 700; margin-right: 6px; }
.ocResult .stars { color: var(--gold); letter-spacing: 0.04em; }
.ocResT { border-collapse: collapse; font-size: 14px; width: 100%; max-width: 440px; }
.ocResT th { font-family: var(--label); font-weight: 500; color: var(--dim); text-align: left; font-size: 12px; letter-spacing: 0.05em; padding: 2px 8px 2px 0; }
.ocResT td { padding: 2px 8px 2px 0; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 13px; }
.ocResT td:first-child { font-family: var(--display); font-size: 15px; }
.ocResT td small { color: var(--dim); font-size: 12px; }
.ocResT td.good { color: var(--ok); }
.ocResT td.bad { color: var(--rubric); }
.ocGrades { margin: 0; font-size: 12.5px; color: var(--dim); }

@media (max-width: 860px) { .ocCols { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 600px) {
  .ocGrid { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); }
  #ocNav { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 8px; }
  #ocNav button { flex: none; }
  .ocBar { flex-wrap: wrap; gap: 6px 12px; }
  .ocWeek { order: 3; flex-basis: 100%; text-align: left; }
}