/* ============================================================
   Dictation Studio — "The Engraver's Desk"
   warm paper · iron-gall ink · oxblood · brass · staff-rule motifs
   ============================================================ */

:root {
  --paper: #f4eee1;
  --paper-deep: #ece3d0;
  --card: #fbf8f0;
  --card-edge: #e2d8c2;
  --ink: #221c13;
  --ink-soft: #6b5f4d;
  --ink-faint: #9c8f78;
  --line: #d9cdb4;
  --oxblood: #7a2e2b;
  --oxblood-deep: #5c1f1d;
  --oxblood-soft: #f0e2dd;
  --brass: #a07c3c;
  --brass-soft: #ead9b8;
  --ok: #44663f;
  --close: #a8762a;
  --missed: #9c4a2f;
  --shadow: 0 1px 2px rgba(54, 40, 18, 0.07), 0 8px 28px -12px rgba(54, 40, 18, 0.25);
  --radius: 14px;
  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-music: 'Noto Music', serif;
}

/* Dark mode — the engraver's desk by lamplight: a near-black neutral-warm
   ground, crisp ivory text, and the score itself engraved in white ink. */
[data-theme="dark"] {
  --paper: #15140f;
  --paper-deep: #100f0c;
  --card: #1f1d18;
  --card-edge: #353029;
  --ink: #f4efe4;
  --ink-soft: #b0a692;
  --ink-faint: #756d5c;
  --line: #2f2b23;
  --oxblood: #e0716a;
  --oxblood-deep: #ee9089;
  --oxblood-soft: #38211e;
  --brass: #ddb463;
  --brass-soft: #423822;
  --ok: #8cbb80;
  --close: #ddac51;
  --missed: #e58463;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px -12px rgba(0, 0, 0, 0.7);
}
[data-theme="dark"] .grain { opacity: 0.2; }
/* engrave the answer in white ink so it reads on the dark desk */
[data-theme="dark"] #notation svg path { fill: var(--ink); }
[data-theme="dark"] #notation svg text { fill: var(--ink); }

* { box-sizing: border-box; }

/* The `hidden` attribute must beat element display rules (.check is display:flex,
   .field-inline is display:grid), or conditionally-hidden controls — e.g. the
   Bach-only random-transpose toggle in Generated mode — leak through. */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(160, 124, 60, 0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(122, 46, 43, 0.07), transparent 55%),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.05'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.noto { font-family: var(--font-music); }

/* ---------- staff rule motif ---------- */
.staff-rule {
  height: 13px;
  background: repeating-linear-gradient(
    to bottom,
    var(--line) 0 1px,
    transparent 1px 4px
  );
  background-size: 100% 13px;
  background-repeat: no-repeat;
  opacity: 0.9;
}

/* ---------- masthead ---------- */
.masthead { padding: 26px clamp(18px, 4vw, 44px) 0; }
.masthead-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.wordmark { display: flex; align-items: baseline; gap: 14px; white-space: nowrap; }
.wordmark-clef {
  font-family: var(--font-music);
  font-size: 40px;
  line-height: 0;
  color: var(--oxblood);
  transform: translateY(6px);
}
.wordmark h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 560;
  letter-spacing: -0.015em;
  font-variation-settings: 'opsz' 80;
}
.wordmark h1 em {
  font-style: italic;
  font-weight: 420;
  color: var(--oxblood);
}
.masthead-side { display: flex; align-items: center; gap: 14px; }
.stats-chip {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
@media (max-width: 560px) {
  .stats-chip { display: none; }
  .wordmark-clef { font-size: 30px; }
  .wordmark h1 { font-size: 24px; }
}

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 332px minmax(0, 1fr);
  gap: 22px;
  padding: 24px clamp(18px, 4vw, 44px) 40px;
  max-width: 1460px;
  margin: 0 auto;
  align-items: start;
}
.rail { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 18px; }
.stage-col { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

/* entrance */
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.anim-1, .anim-2, .anim-3 { animation: rise 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) backwards; }
.anim-2 { animation-delay: 0.08s; }
.anim-3 { animation-delay: 0.16s; }

/* ---------- cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--card-edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
}
.card-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* ---------- fields ---------- */
.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }
.field-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.field-inline { display: grid; grid-template-columns: 96px 1fr; align-items: center; gap: 10px; }
.field-inline .field-label { margin: 0; }

/* segmented control */
.seg {
  display: flex;
  background: var(--paper-deep);
  border: 1px solid var(--card-edge);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}
.seg label { flex: 1; min-width: 0; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span {
  display: block;
  text-align: center;
  padding: 6px 4px;
  font-size: 12.5px;
  font-weight: 550;
  color: var(--ink-soft);
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
}
.seg input:checked + span {
  background: var(--card);
  color: var(--oxblood-deep);
  box-shadow: 0 1px 3px rgba(54, 40, 18, 0.18);
}
.seg input:focus-visible + span { outline: 2px solid var(--brass); outline-offset: 1px; }

/* selects, inputs */
select, input[type="text"] {
  width: 100%;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--card-edge);
  border-radius: 9px;
  padding: 7px 10px;
}
select:focus-visible, input[type="text"]:focus-visible { outline: 2px solid var(--brass); outline-offset: 1px; }
.key-row { display: flex; gap: 8px; }
.key-row select { flex: 1; }

/* checks */
.check {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  margin: 11px 0 0;
  cursor: pointer;
  font-size: 13px;
}
.check input { margin-top: 2px; accent-color: var(--oxblood); }
.check small { display: block; color: var(--ink-faint); font-size: 11.5px; }

/* sliders */
.slider-row { display: flex; align-items: center; gap: 10px; }
.slider-out {
  min-width: 56px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 13px;
  color: var(--oxblood-deep);
}
input[type="range"] {
  flex: 1;
  appearance: none;
  height: 22px;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  background: linear-gradient(to right, var(--brass) 0, var(--card-edge) 0);
  background-color: var(--card-edge);
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--oxblood);
  border: 2px solid var(--card);
  box-shadow: 0 1px 3px rgba(54, 40, 18, 0.4);
  margin-top: -6.5px;
}
input[type="range"]::-moz-range-track { height: 3px; background: var(--card-edge); border-radius: 2px; }
input[type="range"]::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--oxblood); border: 2px solid var(--card);
}
input[type="range"]:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; border-radius: 6px; }

/* stepper */
.stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--card-edge);
  border-radius: 9px;
  background: var(--card);
  overflow: hidden;
}
.stepper button {
  border: 0;
  background: var(--paper-deep);
  color: var(--ink);
  width: 30px;
  height: 30px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.stepper button:hover { background: var(--brass-soft); }
.stepper output {
  min-width: 38px;
  text-align: center;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

/* presets */
.preset-row { display: flex; gap: 8px; margin-bottom: 9px; }
.preset-row:last-child { margin-bottom: 0; }
.preset-row select, .preset-row input { flex: 1; min-width: 0; }

/* ---------- buttons ---------- */
.btn, .btn-small, .btn-text {
  font: inherit;
  cursor: pointer;
  border-radius: 10px;
  transition: transform 0.12s, box-shadow 0.15s, background 0.15s, color 0.15s;
}
.btn {
  border: 1px solid transparent;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.btn.primary {
  background: linear-gradient(to bottom, #8a3835, var(--oxblood) 45%, var(--oxblood-deep));
  color: #f8f2e4;
  border-color: var(--oxblood-deep);
  box-shadow: inset 0 1px 0 rgba(255, 244, 220, 0.22), 0 2px 8px -2px rgba(92, 31, 29, 0.55);
}
.btn.primary:hover { transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255,244,220,0.22), 0 5px 14px -4px rgba(92, 31, 29, 0.6); }
.btn.primary:active { transform: translateY(0); }
.btn.ghost {
  background: transparent;
  color: var(--oxblood-deep);
  border-color: var(--oxblood);
}
.btn.ghost:hover { background: var(--oxblood-soft); }
.btn.neutral {
  background: var(--card);
  color: var(--ink);
  border-color: var(--card-edge);
}
.btn.neutral:hover { background: var(--paper-deep); }
.btn:disabled { opacity: 0.45; cursor: default; transform: none !important; }
.btn-small {
  border: 1px solid var(--card-edge);
  background: var(--paper-deep);
  color: var(--ink);
  padding: 7px 12px;
  font-size: 12.5px;
  font-weight: 600;
}
.btn-small:hover { background: var(--brass-soft); }
.btn-text {
  border: 0;
  background: none;
  color: var(--ink-soft);
  font-size: 12.5px;
  font-weight: 600;
  padding: 4px 6px;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
}
.btn-text:hover { color: var(--oxblood); text-decoration-color: var(--oxblood); }
:is(.btn, .btn-small, .btn-text):focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; }

/* ---------- stage ---------- */
.stage { padding: 22px 26px 24px; }

.givens {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 58px;
}
.given {
  border: 1px solid var(--card-edge);
  background: linear-gradient(to bottom, var(--card), var(--paper-deep));
  border-radius: 11px;
  padding: 7px 14px 8px;
  min-width: 86px;
}
.given dt {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  margin: 0 0 1px;
}
.given dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 560;
}
.given dd .noto { font-size: 15px; }
.given.peek dd { cursor: pointer; color: var(--brass); }
.given.peek dd:hover { color: var(--oxblood); }

.hero {
  min-height: 218px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  padding: 18px 0 10px;
}
.hero-state {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 540;
  letter-spacing: -0.01em;
}
.hero-sub { color: var(--ink-soft); font-size: 13.5px; max-width: 46ch; margin: 0; }
.hero-sub strong { color: var(--ink); }

@keyframes breathe { 0%, 100% { opacity: 0.55; } 50% { opacity: 1; } }
.hero-live { animation: breathe 2.2s ease-in-out infinite; color: var(--oxblood); }

/* play progress dots */
.play-dots { display: flex; gap: 8px; }
.play-dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--paper-deep);
  border: 1px solid var(--card-edge);
}
.play-dots i.done { background: var(--brass); border-color: var(--brass); }
.play-dots i.now { background: var(--oxblood); border-color: var(--oxblood-deep); transform: scale(1.25); }

/* countdown ring */
.ring-wrap { position: relative; width: 168px; height: 168px; }
.ring-wrap svg { transform: rotate(-90deg); }
.ring-track { fill: none; stroke: var(--paper-deep); stroke-width: 7; }
.ring-fill {
  fill: none;
  stroke: var(--brass);
  stroke-width: 7;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.2s linear, stroke 0.4s;
}
.ring-fill.urgent { stroke: var(--oxblood); }
.ring-num {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 560;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.ring-num small {
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 6px;
}

.transport {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

/* ---------- answer ---------- */
.answer-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.answer-meta { font-size: 12.5px; color: var(--ink-soft); font-style: italic; font-family: var(--font-display); }

.answer-hidden { padding: 8px 0 4px; }
.ghost-staff { display: flex; flex-direction: column; gap: 26px; padding: 18px 8px 6px; opacity: 0.55; }
.ghost-lines {
  height: 25px;
  background: repeating-linear-gradient(to bottom, var(--line) 0 1px, transparent 1px 6px);
  background-size: 100% 25px;
  background-repeat: no-repeat;
  mask-image: linear-gradient(to right, black 92%, transparent);
}
.answer-note {
  text-align: center;
  color: var(--ink-faint);
  font-size: 13px;
  margin: 14px 0 4px;
}
.answer-note .noto { font-size: 18px; color: var(--brass); }

#notation { overflow-x: auto; }
#notation svg { max-width: 100%; }

.study {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line);
  margin-top: 12px;
  padding-top: 14px;
}
.study .voice-pills { display: flex; gap: 6px; }
.voice-pill {
  border: 1px solid var(--card-edge);
  background: var(--paper-deep);
  border-radius: 999px;
  padding: 5px 13px;
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  color: var(--ink-soft);
  transition: all 0.15s;
}
.voice-pill[aria-pressed="true"] {
  background: var(--oxblood);
  border-color: var(--oxblood-deep);
  color: #f8f2e4;
}
.study-right { margin-left: auto; display: flex; gap: 8px; }

.grade {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 14px;
}
.grade-label { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.grade button {
  font: inherit;
  font-weight: 600;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1.5px solid;
  background: transparent;
  cursor: pointer;
  transition: all 0.15s;
}
.grade .g-ok { color: var(--ok); border-color: var(--ok); }
.grade .g-ok:hover, .grade .g-ok.chosen { background: var(--ok); color: #f4efe2; }
.grade .g-close { color: var(--close); border-color: var(--close); }
.grade .g-close:hover, .grade .g-close.chosen { background: var(--close); color: #f4efe2; }
.grade .g-missed { color: var(--missed); border-color: var(--missed); }
.grade .g-missed:hover, .grade .g-missed.chosen { background: var(--missed); color: #f4efe2; }

/* ---------- history ---------- */
.history-head { display: flex; justify-content: space-between; align-items: baseline; }
.history-list { list-style: none; margin: 0; padding: 0; }
.history-list li {
  display: grid;
  grid-template-columns: 12px minmax(120px, 1.4fr) 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 9px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.history-list li:last-child { border-bottom: 0; }
.h-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--card-edge); }
.h-dot.g0 { background: var(--ok); }
.h-dot.g1 { background: var(--close); }
.h-dot.g2 { background: var(--missed); }
.h-what { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.h-detail { color: var(--ink-soft); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.h-when { color: var(--ink-faint); font-size: 11.5px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.history-empty { color: var(--ink-faint); font-size: 13px; text-align: center; padding: 10px 0 4px; }

/* ---------- banner / footer / dialog ---------- */
.banner {
  margin: 10px clamp(18px, 4vw, 44px) 0;
  border: 1px solid var(--close);
  background: #f7ead2;
  color: #6e4d15;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13px;
}

.footer { margin-top: 18px; padding: 0 clamp(18px, 4vw, 44px) 34px; }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  color: var(--ink-faint);
  font-size: 12px;
}
.kbd-legend { display: flex; flex-wrap: wrap; gap: 14px; }
kbd {
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 700;
  border: 1px solid var(--card-edge);
  border-bottom-width: 2px;
  background: var(--card);
  border-radius: 5px;
  padding: 1.5px 6px;
  color: var(--ink-soft);
}
.colophon a { color: var(--ink-soft); }
.colophon a:hover { color: var(--oxblood); }

dialog {
  border: 1px solid var(--card-edge);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
  max-width: 560px;
  padding: 28px 32px;
  box-shadow: 0 24px 80px -20px rgba(40, 28, 10, 0.45);
}
dialog::backdrop { background: rgba(40, 30, 14, 0.45); }
dialog h2 { font-family: var(--font-display); margin-top: 0; }
dialog h2 em { color: var(--oxblood); }
dialog h3 { font-family: var(--font-display); font-size: 15px; margin-bottom: 4px; }
dialog p, dialog li { font-size: 13.5px; }
dialog form { text-align: right; margin-top: 18px; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .rail { position: static; order: 2; }
  .stage-col { order: 1; }
  .hero { min-height: 190px; }
}

@media (prefers-reduced-motion: reduce) {
  .anim-1, .anim-2, .anim-3 { animation: none; }
  .hero-live { animation: none; }
  html { scroll-behavior: auto; }
}