/*
  ==================================================
  PAGE: OPEN TUNING SCALE LIBRARY
  ==================================================
  Load this file ONLY on /tools-resources/open-tuning-scales/.
  It is intentionally separate from /assets/css/styles.css so the scale
  library cannot change other pages.
*/

body.page-scale-library {
  --hero-image: url("/assets/images/hero-open-tuning-scales.webp");
}

body.page-scale-library .scale-library-hero {
  min-height: 520px;
  background-image: var(--hero-image, none);
  background-position: center top;
}

body.page-scale-library .scale-library-hero .hero-copy {
  max-width: 780px;
}

body.page-scale-library .scale-tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 48px;
  align-items: start;
}

body.page-scale-library .scale-tool-intro {
  max-width: 680px;
}

body.page-scale-library .scale-controls {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--color-line);
  background: var(--color-bg-card);
}

body.page-scale-library .scale-control-field {
  display: grid;
  gap: 8px;
}

body.page-scale-library .scale-control-field label,
body.page-scale-library .scale-display-toggle legend {
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.3;
  text-transform: uppercase;
}

body.page-scale-library .scale-control-field select {
  width: 100%;
  min-height: 52px;
  padding: 0 14px;
  border: 1px solid rgba(249, 221, 199, 0.55);
  border-radius: 0;
  color: var(--color-bg-dark);
  background: var(--color-text);
  font: inherit;
  outline: none;
}

body.page-scale-library .scale-control-field select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(227, 198, 147, 0.25);
}

body.page-scale-library .scale-display-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin: 4px 0 0;
  padding: 0;
  border: 0;
}

body.page-scale-library .scale-display-toggle legend {
  width: 100%;
  margin-bottom: 2px;
}

body.page-scale-library .scale-display-toggle label {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

body.page-scale-library .scale-display-toggle input {
  accent-color: var(--color-accent);
}

body.page-scale-library .scale-result-card {
  margin-top: 42px;
  border: 1px solid var(--color-line);
  background: var(--color-bg-card);
}

body.page-scale-library .scale-result-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.75fr);
  gap: 24px;
  align-items: start;
  padding: 24px;
  border-bottom: 1px solid var(--color-line);
}

body.page-scale-library .scale-result-label,
body.page-scale-library .scale-info-label {
  margin: 0 0 8px;
  color: var(--color-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.3;
  text-transform: uppercase;
}

body.page-scale-library .scale-result-summary h2 {
  margin-bottom: 0;
}

body.page-scale-library .scale-result-meta p {
  margin-bottom: 8px;
  font-size: 0.96rem;
}

body.page-scale-library .scale-result-meta p:last-child {
  margin-bottom: 0;
}

body.page-scale-library .scale-fretboard-figure {
  margin: 0;
  padding: 18px;
}

/*
  Tuner-style fretboard diagram.
  These rules intentionally mirror the online tuner page's fretboard classes,
  but they are scoped to body.page-scale-library and loaded only on this page.
*/
body.page-scale-library .scale-fretboard-diagram,
body.page-scale-library .fretboard-diagram {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  overflow: auto;
  border: 1px solid rgba(249, 221, 199, 0.18);
  background: rgba(255, 255, 255, 0.03);
}

body.page-scale-library .scale-fretboard-svg,
body.page-scale-library .fretboard-svg {
  display: block;
  width: 100%;
  min-width: 920px;
  max-width: 100%;
  height: auto;
}

body.page-scale-library .fretboard-svg text {
  font-family: var(--font-body);
  dominant-baseline: middle;
}

body.page-scale-library .fret-number-text,
body.page-scale-library .string-label-text {
  fill: rgba(249, 221, 199, 0.7);
  font-size: 13px;
  font-weight: 700;
}

body.page-scale-library .note-text {
  fill: var(--color-button-text);
  font-size: 13px;
  font-weight: 700;
  text-anchor: middle;
}

body.page-scale-library .open-note-text {
  fill: var(--color-accent);
}

body.page-scale-library .string-label-text {
  text-anchor: start;
}

body.page-scale-library .fret-line,
body.page-scale-library .string-line {
  stroke: rgba(249, 221, 199, 0.32);
  stroke-width: 1;
}

body.page-scale-library .nut-line {
  stroke: var(--color-accent);
  stroke-width: 5;
}

body.page-scale-library .note-dot {
  fill: #f9ddc7;
  stroke: rgba(249, 221, 199, 0.28);
  stroke-width: 1;
}

body.page-scale-library .open-note-dot {
  fill: rgba(255, 255, 255, 0.05);
  stroke: var(--color-accent);
  stroke-width: 2;
}

body.page-scale-library .scale-root-dot {
  fill: var(--color-accent);
  stroke: #f9ddc7;
  stroke-width: 2.5;
}

body.page-scale-library .scale-root-text {
  fill: var(--color-button-text);
  font-size: 13px;
  font-weight: 800;
}

body.page-scale-library .scale-info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

body.page-scale-library .scale-info-card {
  padding: 24px;
  border: 1px solid var(--color-line);
  background: var(--color-bg-card);
}

body.page-scale-library .scale-info-card h3 {
  color: var(--color-text);
}

body.page-scale-library .scale-info-card p:last-child {
  margin-bottom: 0;
}

body.page-scale-library .scale-formula {
  font-size: 0.95rem;
}

body.page-scale-library .scale-noscript {
  margin-top: 28px;
  padding: 20px;
  border: 1px solid var(--color-line);
  background: var(--color-bg-card);
}

body.page-scale-library .next-step-panel {
  max-width: 760px;
      margin: 0 auto;
      text-align: center;
}

body.page-scale-library .next-step-button {
  display: inline-block;
      margin-top: 16px;
      padding: 14px 18px;
      border: 1px solid var(--color-accent);
      color: var(--color-button-text);
      background: var(--color-accent);
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-decoration: none;
      text-transform: uppercase;
      transition:
        background var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

body.page-scale-library .next-step-button:hover {
  background: #f0d9a6;
      border-color: #f0d9a6;
}

body.page-scale-library .next-step-button:active {
  transform: scale(0.97);
}

@media (max-width: 960px) {
  body.page-scale-library .scale-tool-layout,
  body.page-scale-library .scale-result-summary,
  body.page-scale-library .scale-info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  body.page-scale-library .scale-library-hero {
    min-height: 500px;
  }

  body.page-scale-library .scale-controls,
  body.page-scale-library .scale-info-card {
    padding: 20px;
  }

  body.page-scale-library .scale-fretboard-figure {
    padding: 12px;
  }
}