@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,560;700&family=Outfit:wght@400;500;600;700&display=swap");

:root {
  color-scheme: dark;
  --sax-bg: #100c09;
  --sax-ink: #f6ebdc;
  --sax-muted: #b7a28c;
  --sax-brass: #e0b45c;
  --sax-brass-deep: #a8742f;
  --sax-line: rgba(224, 180, 92, 0.18);
  --sax-panel: rgba(28, 20, 14, 0.55);
  --sax-ok: #7ed99a;
  --sax-bad: #f08a78;
  --sax-glow: rgba(224, 180, 92, 0.22);
  --sax-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --sax-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body.sax-body {
  margin: 0;
  min-height: 100vh;
  color: var(--sax-ink);
  font-family: Outfit, ui-sans-serif, system-ui, sans-serif;
  letter-spacing: -0.01em;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(224, 180, 92, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 45% at 95% 15%, rgba(120, 68, 28, 0.28), transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(60, 36, 18, 0.45), transparent 42%),
    linear-gradient(165deg, #1c140f 0%, var(--sax-bg) 42%, #080604 100%);
  overflow-x: hidden;
}

body.sax-body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.sax-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 64px;
}

.sax-hero {
  margin-bottom: 28px;
  max-width: 40rem;
  animation: sax-rise 700ms var(--sax-ease) both;
}

.sax-brand-link {
  display: inline-block;
  color: var(--sax-muted);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.sax-brand-link:hover { color: var(--sax-brass); }

.sax-kicker {
  margin: 18px 0 10px;
  color: var(--sax-brass);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.sax-hero h1 {
  margin: 0;
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(3rem, 9vw, 5.2rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.92;
  background: linear-gradient(120deg, #fff4e2 10%, var(--sax-brass) 55%, #c9893c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sax-lead {
  margin: 14px 0 0;
  color: var(--sax-muted);
  font-size: 1.02rem;
  line-height: 1.6;
  font-weight: 400;
}

.sax-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.sax-jump {
  display: flex;
  gap: 14px;
  margin-top: 16px;
}

.sax-jump a {
  color: var(--sax-muted);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.sax-jump a:hover {
  color: var(--sax-brass);
  border-color: color-mix(in srgb, var(--sax-brass) 55%, transparent);
}

.sax-advanced {
  border: 1px solid var(--sax-line);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.22);
  padding: 0 12px;
}

.sax-advanced > summary {
  cursor: pointer;
  list-style: none;
  padding: 12px 4px;
  color: var(--sax-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sax-advanced > summary::-webkit-details-marker { display: none; }

.sax-advanced[open] > summary { color: var(--sax-brass); }

.sax-advanced-body {
  display: grid;
  gap: 14px;
  padding: 0 2px 14px;
}

.sax-hotkeys {
  margin: 10px 0 0;
  color: var(--sax-muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.sax-hotkeys kbd {
  display: inline-block;
  min-width: 1.4em;
  padding: 1px 6px;
  margin: 0 1px;
  border: 1px solid var(--sax-line);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.35);
  color: var(--sax-ink);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  text-align: center;
}

.sax-note-stage.is-success {
  animation: sax-success-flash 700ms var(--sax-ease);
}

.sax-session-side {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.sax-session-copy { flex: 1 1 220px; min-width: 0; }

.sax-session-track {
  margin-top: 10px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.sax-session-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sax-brass), var(--sax-ok));
  transition: width 360ms var(--sax-ease);
}

.sax-phase-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--sax-line);
  color: var(--sax-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.sax-phase-pill[data-phase="teach"] {
  color: var(--sax-brass);
  border-color: color-mix(in srgb, var(--sax-brass) 45%, transparent);
  background: rgba(224, 180, 92, 0.1);
}

.sax-phase-pill[data-phase="recall"] {
  color: var(--sax-ok);
  border-color: color-mix(in srgb, var(--sax-ok) 45%, transparent);
  background: rgba(126, 217, 154, 0.1);
}

.sax-phase-pill[data-phase="done"] {
  color: var(--sax-ink);
  border-color: color-mix(in srgb, var(--sax-brass) 35%, transparent);
}

@keyframes sax-success-flash {
  0% { box-shadow: 0 0 0 0 rgba(126, 217, 154, 0.0); }
  35% { box-shadow: 0 0 0 3px rgba(126, 217, 154, 0.35), 0 24px 60px rgba(0, 0, 0, 0.28); }
  100% { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28); }
}

.sax-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  gap: 28px 32px;
  align-items: start;
  animation: sax-rise 800ms var(--sax-ease) 80ms both;
}

.sax-path-blurb {
  margin: 8px 0 0;
  color: var(--sax-muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.sax-paths .sax-chip.is-active {
  border-color: var(--sax-brass);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--sax-brass) 45%, transparent);
}

.sax-mastery-dot.is-due {
  outline: 2px solid color-mix(in srgb, var(--sax-coral, #e86f4a) 80%, white);
  outline-offset: 1px;
}

.sax-recipe-alt {
  margin-left: 0.45rem;
  color: var(--sax-brass);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sax-controls {
  display: grid;
  gap: 14px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--sax-line);
}

.sax-control-block { min-width: 0; }

.sax-section-label {
  margin: 0 0 8px;
  color: var(--sax-brass);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.sax-note-copy {
  margin: 0;
  color: var(--sax-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.sax-seg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--sax-line);
  max-width: 360px;
}

.sax-seg-4 {
  max-width: 420px;
}

.sax-seg-5 {
  max-width: 560px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.sax-session-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border: 1px solid var(--sax-line);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(232, 111, 74, 0.12), rgba(0, 0, 0, 0.25));
}

.sax-session-meta {
  margin: 0;
  color: var(--sax-ink, #f4efe8);
  font-size: 0.92rem;
  line-height: 1.4;
}

body.sax-remember-teach .sax-chart-sticky {
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--sax-brass) 55%, transparent);
}

body.sax-remember-recall .sax-prompt strong {
  letter-spacing: 0.04em;
}

.sax-seg-btn {
  border: 0;
  border-radius: 11px;
  background: transparent;
  color: var(--sax-muted);
  padding: 11px 14px;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms var(--sax-ease);
}

.sax-seg-btn:hover { color: var(--sax-ink); }

.sax-seg-btn.is-active {
  background: linear-gradient(180deg, rgba(224, 180, 92, 0.28), rgba(168, 116, 47, 0.22));
  color: #fff1d8;
  box-shadow: inset 0 0 0 1px rgba(224, 180, 92, 0.35);
}

.sax-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.sax-chip {
  border: 1px solid var(--sax-line);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.28);
  color: var(--sax-ink);
  padding: 8px 13px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms var(--sax-ease);
}

.sax-chip:hover {
  border-color: rgba(224, 180, 92, 0.45);
  transform: translateY(-1px);
}

.sax-chip.is-active {
  background: rgba(224, 180, 92, 0.18);
  border-color: var(--sax-brass);
  color: var(--sax-brass);
}

.sax-chip.is-strong { box-shadow: inset 0 -2px 0 var(--sax-ok); }
.sax-chip.is-ok { box-shadow: inset 0 -2px 0 rgba(224, 180, 92, 0.7); }
.sax-chip.is-weak { box-shadow: inset 0 -2px 0 var(--sax-bad); }

.sax-teach {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--sax-line);
  background: rgba(0, 0, 0, 0.22);
}

.sax-teach-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
}

.sax-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--sax-muted);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
}

.sax-field {
  display: grid;
  gap: 6px;
  color: var(--sax-muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.sax-field select {
  width: 100%;
  border: 1px solid var(--sax-line);
  border-radius: 12px;
  background: rgba(12, 9, 7, 0.72);
  color: var(--sax-ink);
  padding: 11px 12px;
  font: inherit;
  outline: none;
}

.sax-field select:focus {
  border-color: color-mix(in srgb, var(--sax-brass) 55%, transparent);
  box-shadow: 0 0 0 3px rgba(224, 180, 92, 0.14);
}

.sax-toggle input {
  width: 16px;
  height: 16px;
  accent-color: var(--sax-brass);
}

.sax-teach-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sax-recipe-kicker {
  margin: 0 0 8px;
  color: var(--sax-brass);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sax-recipe-list {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sax-recipe-chip {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(224, 180, 92, 0.28);
  background: rgba(224, 180, 92, 0.1);
  color: #f3e2c4;
  font-size: 0.76rem;
  font-weight: 600;
}

.sax-recipe-hidden {
  margin: 0;
  color: var(--sax-muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.sax-related {
  margin: 0;
  color: var(--sax-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.sax-related strong { color: var(--sax-ink); }

.sax-inline-link {
  border: 0;
  background: none;
  color: var(--sax-brass);
  font: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  padding: 0;
}

.sax-mastery-wrap { margin-top: 2px; }

.sax-mastery {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sax-mastery-dot {
  border: 1px solid var(--sax-line);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.28);
  color: var(--sax-muted);
  padding: 5px 9px;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
}

.sax-mastery-dot.is-new { opacity: 0.7; }
.sax-mastery-dot.is-weak { border-color: rgba(240, 138, 120, 0.55); color: #ffc2b6; }
.sax-mastery-dot.is-ok { border-color: rgba(224, 180, 92, 0.55); color: var(--sax-brass); }
.sax-mastery-dot.is-strong { border-color: rgba(126, 217, 154, 0.55); color: var(--sax-ok); }

.sax-mastery-meta {
  margin: 8px 0 0;
  color: var(--sax-muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.sax-key.is-quizable { cursor: pointer; }
.sax-key.is-correct {
  fill: #2f5a3c !important;
  stroke: var(--sax-ok) !important;
  filter: drop-shadow(0 0 10px rgba(126, 217, 154, 0.45));
}
.sax-key.is-wrong {
  fill: #5a2a24 !important;
  stroke: var(--sax-bad) !important;
  filter: drop-shadow(0 0 10px rgba(240, 138, 120, 0.4));
}

body.sax-quiz-mode .sax-fingering .sax-key { cursor: pointer; }
body.sax-quiz-mode .sax-chart-sticky {
  box-shadow: 0 0 0 1px rgba(224, 180, 92, 0.28), 0 28px 70px rgba(0, 0, 0, 0.3);
}

.sax-range {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.sax-range-field {
  display: grid;
  gap: 6px;
  color: #d4c0a6;
  font-size: 0.8rem;
  font-weight: 600;
}

.sax-range-field select {
  width: 100%;
  border: 1px solid var(--sax-line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.4);
  color: var(--sax-ink);
  padding: 11px 12px;
  font: inherit;
  font-weight: 600;
  outline: none;
}

.sax-range-field select:focus {
  border-color: var(--sax-brass);
  box-shadow: 0 0 0 3px rgba(224, 180, 92, 0.14);
}

.sax-range-count {
  margin: 6px 0 0;
  color: var(--sax-muted);
  font-size: 0.78rem;
}

.sax-note-stage {
  display: grid;
  gap: 16px;
  padding: 22px 22px 20px;
  border-radius: 24px;
  border: 1px solid rgba(224, 180, 92, 0.28);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(224, 180, 92, 0.16), transparent 55%),
    linear-gradient(160deg, rgba(48, 34, 22, 0.85), rgba(16, 11, 8, 0.72));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  transition: border-color 220ms ease, box-shadow 220ms ease;
}

body.sax-remember-teach .sax-note-stage {
  border-color: color-mix(in srgb, var(--sax-brass) 60%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--sax-brass) 28%, transparent), 0 24px 60px rgba(0, 0, 0, 0.28);
}

body.sax-remember-recall .sax-note-stage {
  border-color: color-mix(in srgb, var(--sax-ok) 45%, transparent);
}

.sax-prompt {
  display: grid;
  gap: 8px;
}

.sax-prompt span {
  color: var(--sax-brass);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sax-prompt strong {
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(3.2rem, 12vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: #fff6e8;
}

.sax-prompt strong.is-pulse {
  animation: sax-note-pulse 480ms var(--sax-ease);
}

.sax-prompt small {
  color: var(--sax-muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.sax-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sax-btn {
  border: 0;
  border-radius: 14px;
  padding: 13px 18px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms var(--sax-ease), filter 160ms ease, border-color 160ms ease, background 160ms ease;
}

.sax-btn:active { transform: translateY(1px) scale(0.99); }

.sax-btn-primary {
  background: linear-gradient(180deg, #ecc174, var(--sax-brass-deep));
  color: #1a1007;
  box-shadow: 0 10px 28px rgba(168, 116, 47, 0.28);
}

.sax-btn-primary:hover { filter: brightness(1.06); }
.sax-btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }

.sax-btn-secondary {
  background: rgba(255, 244, 226, 0.06);
  color: var(--sax-ink);
  border: 1px solid var(--sax-line);
}

.sax-btn-secondary:hover { border-color: rgba(224, 180, 92, 0.5); }

.sax-btn-ghost {
  background: transparent;
  color: var(--sax-muted);
  border: 1px solid transparent;
}

.sax-btn-ghost:hover {
  color: var(--sax-ink);
  border-color: var(--sax-line);
}

.sax-tuner {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--sax-line);
  background:
    radial-gradient(circle at 50% -20%, rgba(224, 180, 92, 0.12), transparent 55%),
    rgba(0, 0, 0, 0.32);
  overflow: hidden;
}

.sax-tuner.is-listening::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sax-brass);
  box-shadow: 0 0 0 0 rgba(224, 180, 92, 0.55);
  animation: sax-listen-pulse 1.6s ease-out infinite;
}

.sax-tuner-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.sax-tuner-kicker {
  display: block;
  margin-bottom: 4px;
  color: var(--sax-brass);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.sax-cents-big {
  display: block;
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(2.3rem, 7vw, 3.2rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.sax-tuner-state {
  color: var(--sax-muted);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: right;
  max-width: 12rem;
  line-height: 1.35;
}

.sax-tuner-state.is-ok { color: var(--sax-ok); }
.sax-tuner-state.is-bad { color: var(--sax-bad); }
.sax-tuner-state.is-listen { color: var(--sax-brass); }

.sax-tuner-bar {
  position: relative;
  height: 68px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(224, 180, 92, 0.22);
  background: #140e0a;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.sax-tuner-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(240, 138, 120, 0.55) 0%,
    rgba(240, 138, 120, 0.16) 28%,
    rgba(126, 217, 154, 0.08) 42%,
    rgba(126, 217, 154, 0.4) 50%,
    rgba(126, 217, 154, 0.08) 58%,
    rgba(240, 138, 120, 0.16) 72%,
    rgba(240, 138, 120, 0.55) 100%
  );
}

.sax-tuner-sweet {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - 9%);
  width: 18%;
  background: linear-gradient(180deg, rgba(126, 217, 154, 0.28), rgba(126, 217, 154, 0.06));
  border-left: 1px solid rgba(126, 217, 154, 0.35);
  border-right: 1px solid rgba(126, 217, 154, 0.35);
}

.sax-tuner-center {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: rgba(246, 235, 220, 0.55);
  box-shadow: 0 0 12px rgba(246, 235, 220, 0.22);
}

.sax-tuner-ticks {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  pointer-events: none;
}

.sax-tuner-ticks span { border-right: 1px solid rgba(246, 235, 220, 0.07); }
.sax-tuner-ticks span:nth-child(5) { border-right-color: transparent; }

.sax-tuner-needle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 0;
  transform: translateX(-50%);
  transition: left 70ms linear;
  z-index: 2;
}

.sax-tuner-needle i {
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 50%;
  width: 4px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: var(--sax-ink);
  box-shadow: 0 0 0 3px rgba(18, 12, 8, 0.55), 0 0 18px rgba(224, 180, 92, 0.5);
}

.sax-tuner-bar[data-state="ok"] .sax-tuner-needle i {
  background: var(--sax-ok);
  box-shadow: 0 0 0 3px rgba(18, 12, 8, 0.55), 0 0 20px rgba(126, 217, 154, 0.55);
}

.sax-tuner-bar[data-state="bad"] .sax-tuner-needle i {
  background: #ffb4a8;
  box-shadow: 0 0 0 3px rgba(18, 12, 8, 0.55), 0 0 18px rgba(240, 138, 120, 0.45);
}

.sax-tuner-scale {
  display: flex;
  justify-content: space-between;
  color: var(--sax-muted);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0 2px;
}

.sax-hold {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
  color: var(--sax-muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.sax-hold-track {
  height: 8px;
  border-radius: 999px;
  background: #1c140f;
  border: 1px solid var(--sax-line);
  overflow: hidden;
}

.sax-hold-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sax-brass), var(--sax-ok));
  transition: width 80ms linear;
}

.sax-status {
  min-height: 1.45em;
  margin: 0;
  color: var(--sax-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.sax-status.is-ok { color: var(--sax-ok); font-weight: 600; }
.sax-status.is-bad { color: var(--sax-bad); }
.sax-status.is-listen { color: var(--sax-brass); }

.sax-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.sax-stat {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--sax-line);
  background: rgba(0, 0, 0, 0.22);
}

.sax-stat span {
  display: block;
  color: var(--sax-muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sax-stat strong {
  display: block;
  margin-top: 6px;
  font-family: Fraunces, Georgia, serif;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.sax-notes-block {
  padding-top: 4px;
  border-top: 1px solid var(--sax-line);
}

.sax-tips {
  margin: 14px 0 0;
  color: var(--sax-muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.sax-tips strong { color: var(--sax-ink); }

.sax-chart-panel {
  min-width: 0;
}

.sax-chart-sticky {
  position: sticky;
  top: 18px;
  padding: 18px 16px 16px;
  border-radius: 24px;
  border: 1px solid var(--sax-line);
  background:
    linear-gradient(165deg, rgba(42, 30, 20, 0.72), rgba(14, 10, 7, 0.78));
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.3);
  animation: sax-rise 900ms var(--sax-ease) 140ms both;
}

.sax-chart-head h2 {
  margin: 0 0 6px;
  font-family: Fraunces, Georgia, serif;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.sax-chart-head .sax-note-copy {
  margin-bottom: 12px;
  font-size: 0.82rem;
}

.sax-chart-wrap {
  display: grid;
  justify-items: center;
  padding: 8px 0 4px;
}

.sax-diagram-note {
  display: grid;
  justify-items: center;
  gap: 4px;
  margin: 4px 0 8px;
}

.sax-diagram-note strong {
  font-family: Fraunces, Georgia, serif;
  font-size: 1.8rem;
  letter-spacing: -0.03em;
  line-height: 1;
  color: #fff4e4;
}

.sax-mini-staff {
  width: 140px;
  height: 64px;
}

.sax-mini-staff line {
  stroke: rgba(246, 235, 220, 0.45);
  stroke-width: 1.2;
}

.sax-clef-mini {
  fill: rgba(246, 235, 220, 0.85);
  font-size: 34px;
  font-family: Georgia, serif;
}

.sax-mini-head { fill: #f3e4cb; }

.sax-acc {
  fill: #f3e4cb;
  font-size: 14px;
  font-family: Georgia, serif;
}

.sax-fingering {
  width: min(100%, 260px);
  height: auto;
  overflow: visible;
}

.sax-fingering-schematic {
  background: rgba(255, 248, 236, 0.96);
  border-radius: 18px;
  border: 1px solid rgba(30, 20, 12, 0.18);
  padding: 8px;
}

.sax-fingering-schematic .sax-key {
  fill: #fffef9;
  stroke: #1a120c;
  stroke-width: 2.4;
  transition: fill 120ms ease, stroke 120ms ease;
}

.sax-fingering-schematic .sax-key.is-down {
  fill: #14100c;
  stroke: #14100c;
  filter: none;
}

.sax-fingering-schematic .sax-key.is-correct {
  fill: #1f5a34 !important;
  stroke: #1f5a34 !important;
}

.sax-fingering-schematic .sax-key.is-wrong {
  fill: #fffef9 !important;
  stroke: #c44b3a !important;
  stroke-width: 3;
}

.sax-fingering-schematic .sax-key.is-quizable { cursor: pointer; }

.sax-schematic-label {
  fill: rgba(26, 18, 12, 0.45);
  font-family: Outfit, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.sax-chart-legend {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin: 10px 0 0;
  color: var(--sax-muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.sax-legend-filled,
.sax-legend-open {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(246, 235, 220, 0.7);
  vertical-align: -2px;
}

.sax-legend-filled { background: #14100c; border-color: #f3e4cb; }
.sax-legend-open { background: transparent; border-color: #f3e4cb; }

.sax-chart-foot {
  margin: 12px 8px 0;
  color: var(--sax-muted);
  font-size: 0.76rem;
  line-height: 1.5;
  text-align: center;
}

@keyframes sax-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes sax-note-pulse {
  0% { transform: scale(0.92); opacity: 0.55; filter: blur(2px); }
  100% { transform: scale(1); opacity: 1; filter: blur(0); }
}

@keyframes sax-listen-pulse {
  0% { box-shadow: 0 0 0 0 rgba(224, 180, 92, 0.55); }
  70% { box-shadow: 0 0 0 14px rgba(224, 180, 92, 0); }
  100% { box-shadow: 0 0 0 0 rgba(224, 180, 92, 0); }
}

.sax-song {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--sax-line);
  animation: sax-rise 900ms var(--sax-ease) 180ms both;
}

.sax-song-head { max-width: 44rem; margin-bottom: 18px; }
.sax-song-head h2 {
  margin: 0;
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.03em;
}

.sax-song-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(0, 1.4fr);
  gap: 22px;
  align-items: start;
}

.sax-song-controls {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--sax-line);
  background: rgba(0, 0, 0, 0.22);
}

.sax-default-track {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(224, 180, 92, 0.35);
  background:
    linear-gradient(135deg, rgba(224, 180, 92, 0.12), transparent 55%),
    rgba(0, 0, 0, 0.28);
}

.sax-default-track-copy {
  display: grid;
  gap: 4px;
}

.sax-default-track-copy strong {
  font-family: Fraunces, Georgia, serif;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.sax-default-track-copy small {
  color: var(--sax-muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.sax-song-audio {
  width: 100%;
  height: 40px;
  border-radius: 10px;
}

.sax-upload {
  display: grid;
  gap: 8px;
  cursor: pointer;
  position: relative;
}

.sax-upload input { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }

.sax-upload-btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px dashed rgba(224, 180, 92, 0.45);
  background: rgba(224, 180, 92, 0.08);
  color: var(--sax-brass);
  font-weight: 700;
}

.sax-upload:hover .sax-upload-btn,
.sax-upload.is-drop .sax-upload-btn {
  border-color: var(--sax-brass);
  background: rgba(224, 180, 92, 0.14);
}

.sax-upload.is-drop .sax-upload-btn {
  box-shadow: inset 0 0 0 1px rgba(224, 180, 92, 0.55);
}

.sax-upload-name {
  color: var(--sax-muted);
  font-size: 0.8rem;
  word-break: break-all;
}

.sax-song-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sax-song-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sax-song-meta span {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--sax-line);
  background: rgba(0, 0, 0, 0.25);
  color: var(--sax-muted);
  font-size: 0.74rem;
  font-weight: 600;
}

.sax-song-meta strong { color: var(--sax-ink); }

.sax-song-stage { display: grid; gap: 14px; min-width: 0; }

.sax-sheet-wrap {
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--sax-line);
  background:
    linear-gradient(180deg, rgba(255, 248, 236, 0.04), transparent 40%),
    rgba(0, 0, 0, 0.28);
}

.sax-sheet {
  min-height: 160px;
  max-height: min(70vh, 720px);
  padding: 10px;
  overflow: auto;
}

.sax-empty-sheet {
  margin: 28px 16px;
  color: var(--sax-muted);
  font-size: 0.9rem;
}

.sax-sheet-svg { width: 100%; height: auto; display: block; min-width: 560px; }
.sax-sheet-title { fill: var(--sax-brass); font-family: Outfit, sans-serif; font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.sax-clef { fill: var(--sax-ink); font-size: 48px; font-family: Georgia, serif; }
.sax-staff-line { stroke: rgba(246, 235, 220, 0.35); stroke-width: 1.2; }
.sax-barline { stroke: rgba(246, 235, 220, 0.28); stroke-width: 1.4; }
.sax-ledger { stroke: rgba(246, 235, 220, 0.4); stroke-width: 1.1; }
.sax-measure-num { fill: var(--sax-muted); font-family: Outfit, sans-serif; font-size: 9px; font-weight: 600; }
.sax-sheet-note { cursor: pointer; }
.sax-sheet-note ellipse { fill: #f3e4cb; }
.sax-sheet-note line { stroke: #f3e4cb; stroke-width: 1.6; }
.sax-sheet-note text { fill: var(--sax-muted); font-family: Outfit, sans-serif; font-size: 9px; font-weight: 600; }
.sax-sheet-note.is-active ellipse { fill: var(--sax-brass); }
.sax-sheet-note.is-active line { stroke: var(--sax-brass); }
.sax-sheet-note.is-active text { fill: var(--sax-brass); }
.sax-sheet-note.is-oor ellipse { fill: #f0a090; }
.sax-sheet-rest { cursor: pointer; }
.sax-sheet-rest rect,
.sax-sheet-rest circle { fill: rgba(243, 228, 203, 0.75); }
.sax-sheet-rest path { stroke: rgba(243, 228, 203, 0.85); }
.sax-sheet-rest text { fill: var(--sax-muted); font-family: Outfit, sans-serif; font-size: 9px; font-weight: 600; }
.sax-sheet-rest.is-active rect,
.sax-sheet-rest.is-active circle { fill: var(--sax-brass); }
.sax-sheet-rest.is-active path { stroke: var(--sax-brass); }
.sax-sheet-rest.is-active text { fill: var(--sax-brass); }
.sax-song-chip.is-rest { opacity: 0.78; }

.sax-song-walk {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--sax-line);
  background: rgba(0, 0, 0, 0.22);
}

.sax-song-now strong {
  display: block;
  margin-top: 4px;
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(2rem, 6vw, 2.8rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.sax-song-now small {
  display: block;
  margin-top: 6px;
  color: var(--sax-muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.sax-song-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sax-song-transport {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: center;
}

.sax-tempo-field {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--sax-muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.sax-tempo-field input[type="range"] {
  width: min(180px, 42vw);
  accent-color: var(--sax-brass);
}

body.sax-song-playing .sax-sheet-note.is-active ellipse {
  fill: #ffe2a4;
  filter: drop-shadow(0 0 8px rgba(224, 180, 92, 0.55));
}


.sax-song-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
  max-height: 220px;
  overflow: auto;
  padding-right: 2px;
}

.sax-song-chip {
  display: grid;
  gap: 3px;
  text-align: left;
  border: 1px solid var(--sax-line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.28);
  color: var(--sax-ink);
  padding: 10px;
  font: inherit;
  cursor: pointer;
}

.sax-song-chip strong { font-size: 0.86rem; }
.sax-song-chip span { color: var(--sax-muted); font-size: 0.72rem; }
.sax-song-chip.is-active {
  border-color: var(--sax-brass);
  background: rgba(224, 180, 92, 0.14);
}
.sax-song-chip.is-oor { border-color: rgba(240, 138, 120, 0.45); }

@media (max-width: 920px) {
  .sax-stage { grid-template-columns: 1fr; }
  .sax-chart-sticky { position: static; }
  .sax-stats { grid-template-columns: 1fr; }
  .sax-song-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .sax-shell { width: min(100% - 20px, 1180px); padding: 18px 0 48px; }
  .sax-hero h1 { font-size: clamp(2.6rem, 16vw, 3.6rem); }
  .sax-seg { max-width: none; }
  .sax-range { grid-template-columns: 1fr; }
  .sax-actions { flex-direction: column; }
  .sax-btn { width: 100%; }
  .sax-note-stage { padding: 18px; }
  .sax-song-nav { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .sax-hero,
  .sax-stage,
  .sax-chart-sticky,
  .sax-song,
  .sax-prompt strong.is-pulse,
  .sax-tip.is-click .sax-tip-motion,
  .sax-tuner.is-listening::after {
    animation: none !important;
  }
}