:root {
  --bg: #0d1117;
  --panel: #151b24;
  --panel-2: #1c2430;
  --panel-3: #222c3a;
  --text: #eef3f8;
  --muted: #9eabb9;
  --line: #2f3a49;
  --accent: #ffb23e;
  --accent-2: #71c4ff;
  --good: #82d39b;
  --danger: #ff8f8f;
  --shadow: 0 18px 45px rgba(0,0,0,.28);
  --radius: 18px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -10%, rgba(63,119,170,.22), transparent 33rem),
    radial-gradient(circle at 95% 10%, rgba(255,178,62,.12), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.52;
}
button, input, select, textarea { font: inherit; }
button { color: inherit; }
.app-shell {
  width: min(1600px, 100%);
  margin: 0 auto;
  padding: 24px;
}
.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand utilities"
    "modes modes";
  align-items: center;
  gap: 22px 28px;
  margin-bottom: 24px;
}
.brand-block {
  grid-area: brand;
  min-width: 0;
}
h1 {
  margin: 0;
  color: var(--accent);
  font-size: clamp(1.35rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -.04em;
  white-space: nowrap;
}
.utility-actions {
  grid-area: utilities;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.instrument-switcher {
  grid-area: modes;
  justify-self: center;
  width: min(780px, 100%);
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 14px;
}
.btn.instrument-mode-btn {
  min-height: 48px;
  border-radius: 14px;
  border-color: #3a4655;
  background: #161d27;
  color: #8f9baa;
  font-weight: 850;
  letter-spacing: .025em;
  box-shadow: none;
  transition: none;
}
.btn.instrument-mode-btn:hover,
.btn.instrument-mode-btn:focus-visible {
  border-color: #596678;
  background: #1b2430;
  color: #c9d1db;
  transform: none;
}
body[data-mode="guitar"] #guitarModeBtn {
  border-color: rgba(255,178,62,.9);
  background: rgba(255,178,62,.17);
  color: var(--accent);
  box-shadow: 0 0 0 1px rgba(255,178,62,.18), 0 10px 26px rgba(0,0,0,.18);
}
body[data-mode="bass"] #bassModeBtn {
  border-color: rgba(130,211,155,.88);
  background: rgba(130,211,155,.15);
  color: var(--good);
  box-shadow: 0 0 0 1px rgba(130,211,155,.16), 0 10px 26px rgba(0,0,0,.18);
}
body[data-mode="keyboard"] #keyboardModeBtn {
  border-color: rgba(199,154,255,.9);
  background: rgba(199,154,255,.16);
  color: #d2adff;
  box-shadow: 0 0 0 1px rgba(199,154,255,.16), 0 10px 26px rgba(0,0,0,.18);
}
body[data-mode="drums"] #modeToggleBtn {
  border-color: rgba(113,196,255,.9);
  background: rgba(113,196,255,.15);
  color: var(--accent-2);
  box-shadow: 0 0 0 1px rgba(113,196,255,.16), 0 10px 26px rgba(0,0,0,.18);
}
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.btn {
  border: 1px solid var(--line);
  background: var(--panel-2);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
  transition: .18s ease;
}
.btn:hover, .btn:focus-visible { border-color: var(--accent-2); transform: translateY(-1px); outline: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #261800; font-weight: 800; }
.layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
}
.sidebar {
  position: sticky;
  top: 16px;
  align-self: start;
  background: rgba(21,27,36,.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.control-label {
  display: block;
  margin: 0 0 7px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.field {
  width: 100%;
  color: var(--text);
  background: #0f151d;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 12px;
  outline: none;
}
.field:focus { border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(113,196,255,.12); }
.control-stack { display: grid; gap: 13px; }
.search-form { display: grid; gap: 13px; }
.search-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px;
  gap: 8px;
}
.search-submit {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 12px;
  background: var(--accent);
  color: #261800;
  cursor: pointer;
  transition: .18s ease;
}
.search-submit svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.search-submit:hover, .search-submit:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 0 0 3px rgba(255,178,62,.15);
  outline: none;
}
.filter-section {
  display: grid;
  gap: 11px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
}
.filter-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.filter-section-head .control-label { margin: 0; }
.filter-clear {
  border: 0;
  padding: 2px 0;
  background: transparent;
  color: var(--accent-2);
  cursor: pointer;
  font-size: .8rem;
  font-weight: 800;
}
.filter-clear:hover, .filter-clear:focus-visible { color: var(--text); outline: none; }
.filter-clear:disabled { color: var(--muted); cursor: default; opacity: .6; }
.filter-grid { display: grid; gap: 10px; }
.filter-grid .control-label { margin-bottom: 5px; font-size: .72rem; }
.search-results-page {
  min-height: 520px;
  padding: clamp(22px, 4vw, 38px);
}
.search-results-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.search-results-kicker {
  color: var(--accent);
  font-size: .76rem;
  font-weight: 850;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.card.search-results-page h2 {
  margin: 4px 0 5px;
  color: var(--text);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.08;
  letter-spacing: -.035em;
  text-transform: none;
}
.search-results-summary { margin: 0; color: var(--muted); }
.search-criteria {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 16px 0 0;
}
.search-criterion {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.045);
  color: var(--muted);
  padding: 6px 9px;
  font-size: .8rem;
}
.search-criterion strong { color: var(--text); }
.search-results-list {
  display: grid;
  gap: 11px;
  margin-top: 18px;
}
.search-result-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(11,17,24,.58);
  overflow: hidden;
}
.search-result-button {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 16px;
  text-align: left;
  cursor: pointer;
}
.search-result-button:hover, .search-result-button:focus-visible {
  background: rgba(113,196,255,.07);
  outline: none;
}
.search-result-title {
  color: var(--text);
  font-size: 1.08rem;
  font-weight: 850;
  letter-spacing: -.015em;
}
.search-result-artist { color: var(--accent-2); font-weight: 750; margin-top: 2px; }
.search-result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 9px;
}
.search-result-tag {
  border: 1px solid rgba(103,128,154,.35);
  border-radius: 999px;
  color: var(--muted);
  padding: 4px 7px;
  font-size: .76rem;
}
.search-result-action {
  color: var(--accent);
  font-weight: 850;
  white-space: nowrap;
}
.search-empty {
  text-align: center;
  padding: clamp(36px, 8vw, 74px) 18px;
}
.search-empty h3 { margin: 0; font-size: 1.3rem; }
.search-empty p { max-width: 560px; margin: 8px auto 18px; color: var(--muted); }
.neutral-state {
  min-height: 520px;
  display: grid;
  place-items: center;
  padding: clamp(28px, 6vw, 64px);
  text-align: center;
}
.neutral-state-inner { max-width: 520px; }
.neutral-state-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin: 0 auto 16px;
  border: 1px solid rgba(255,178,62,.45);
  border-radius: 16px;
  background: rgba(255,178,62,.08);
  color: var(--accent);
  font-size: 1.45rem;
  font-weight: 900;
}
.card.neutral-state h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  letter-spacing: -.03em;
  text-transform: none;
}
.neutral-state p { margin: 8px 0 0; color: var(--muted); }
.nav-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sidebar-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .83rem;
  margin: 12px 2px 0;
}
.keyboard-note {
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .78rem;
}
kbd {
  display: inline-block;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 1px 5px;
  background: #0f151d;
  color: var(--text);
}
.main { min-width: 0; }
.hero, .card {
  background: linear-gradient(145deg, rgba(28,36,48,.96), rgba(21,27,36,.96));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero { padding: clamp(20px, 4vw, 36px); overflow: hidden; position: relative; }
.hero::after {
  content: "";
  position: absolute;
  width: 250px;
  height: 250px;
  right: -90px;
  top: -115px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,178,62,.25), transparent 68%);
  pointer-events: none;
}
.song-title {
  margin: 4px 0 0;
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -.04em;
}
.artist { margin: 6px 0 18px; color: var(--accent-2); font-size: 1.08rem; font-weight: 700; }
.badges { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  gap: 7px;
  align-items: center;
  border-radius: 999px;
  background: rgba(255,255,255,.055);
  border: 1px solid var(--line);
  padding: 7px 10px;
  font-size: .85rem;
}
.badge strong { color: var(--accent); }
.guitarist-profile-controls {
  width: 100%;
  margin-top: 16px;
}
.guitarist-profile-buttons {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  width: 100%;
}
.guitarist-profile-switch {
  width: 100%;
  min-width: 0;
  min-height: 42px;
  border-radius: 12px;
  padding-inline: 10px;
  font-weight: 850;
  line-height: 1.25;
  text-align: center;
  white-space: normal;
  transform: none;
}
.guitarist-profile-switch.is-active {
  border-color: rgba(255,178,62,.82);
  background: rgba(255,178,62,.16);
  color: var(--accent);
}
.guitarist-profile-switch.is-inactive {
  border-color: rgba(113,196,255,.58);
  background: rgba(113,196,255,.09);
  color: var(--accent-2);
}
.guitarist-profile-switch.is-active:hover,
.guitarist-profile-switch.is-active:focus-visible {
  border-color: var(--accent);
  background: rgba(255,178,62,.2);
  transform: none;
}
.guitarist-profile-switch.is-inactive:hover,
.guitarist-profile-switch.is-inactive:focus-visible {
  border-color: var(--accent-2);
  background: rgba(113,196,255,.14);
  transform: none;
}

.practice-output-toggle {
  border-color: rgba(113,196,255,.62);
  background: rgba(113,196,255,.08);
}
.practice-output-toggle.is-headphones-active {
  border-color: rgba(255,178,62,.78);
  background: rgba(255,178,62,.11);
  color: var(--accent);
}
.practice-output-toggle:hover,
.practice-output-toggle:focus-visible {
  border-color: var(--accent-2);
}
.song-hero-practice-toggle {
  grid-area: action;
  justify-self: end;
  align-self: start;
  position: relative;
  z-index: 2;
  white-space: nowrap;
}

.signal-wrap {
  grid-area: signal;
  margin-top: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.signal-title { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; margin-bottom: 8px; }
.signal-chain { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.signal-node {
  padding: 8px 10px;
  border-radius: 9px;
  background: #0f151d;
  border: 1px solid #364455;
  font-weight: 750;
  font-size: .84rem;
}
.signal-node.guitar { border-color: rgba(113,196,255,.65); }
.signal-node.utility { border-color: rgba(130,211,155,.72); }
.signal-node.amp { border-color: rgba(255,178,62,.75); }
.arrow { color: var(--muted); font-weight: 900; }

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "summary"
    "settings"
    "side"
    "adjust";
  gap: 18px;
  width: 100%;
  margin-top: 16px;
  align-items: start;
}
.grid > * { min-width: 0; }
.song-summary-card {
  grid-area: summary;
  width: 100%;
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 38%);
  grid-template-areas:
    "identity controls"
    "signal signal";
  column-gap: 32px;
  row-gap: 18px;
  padding: 22px 26px;
}
.song-summary-card:not(.has-guitarist-profiles) {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "identity"
    "signal";
}
.song-summary-card.has-practice-toggle:not(.has-guitarist-profiles) {
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "identity action"
    "signal signal";
}
.song-summary-card.has-practice-toggle.has-guitarist-profiles {
  grid-template-areas:
    "identity action"
    "identity controls"
    "signal signal";
  row-gap: 12px;
}
.song-summary-identity {
  grid-area: identity;
  min-width: 0;
  align-self: center;
}
.song-summary-controls {
  grid-area: controls;
  min-width: 0;
  align-self: center;
}
.song-summary-card .song-title {
  max-width: none;
  font-size: clamp(2rem, 4vw, 3.4rem);
}
.song-summary-card .artist { margin-bottom: 12px; }
.song-summary-card .guitarist-profile-controls { margin-top: 0; }
.song-summary-card .guitarist-profile-switch {
  min-height: 40px;
  padding: 8px 12px;
  font-size: .84rem;
}
.song-summary-card.has-guitarist-profiles .guitarist-profile-buttons {
  grid-template-columns: minmax(0, 1fr);
}
.song-summary-card .badge {
  padding: 6px 9px;
  font-size: .82rem;
}
.settings-card {
  grid-area: settings;
  width: 100%;
  max-width: none;
  padding: 22px 24px 24px;
}
.settings-card .card-head {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.settings-text,
.settings-text.masonry-ready {
  position: static;
  display: block;
  width: 100% !important;
  height: auto !important;
  column-width: 270px;
  column-gap: 38px;
  column-rule: 1px solid rgba(47,58,73,.72);
  color: #f5f7fa;
  font-size: .94rem;
  line-height: 1.48;
}
.gear-settings,
.settings-text.masonry-ready .gear-settings {
  position: static !important;
  left: auto !important;
  top: auto !important;
  width: auto !important;
  min-width: 0;
  max-width: none !important;
  break-inside: avoid-column;
  page-break-inside: avoid;
  margin: 0 0 18px;
  padding: 0 0 16px;
  border: 0;
  border-bottom: 1px solid rgba(47,58,73,.72);
  border-radius: 0;
  background: transparent;
}
.gear-settings + .gear-settings {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}
.gear-settings:last-child { margin-bottom: 0; }
.gear-name {
  width: auto;
  max-width: 100%;
  color: var(--accent-2);
  font-weight: 850;
  font-size: 1rem;
  margin-bottom: 7px;
}
.gear-name .gear-category { color: var(--accent); }
.gear-instructions {
  width: auto;
  max-width: 100%;
  margin: 0;
  padding-left: 1.25rem;
}
.gear-instructions li { margin: 3px 0; padding-left: .12rem; }
.gear-instructions li::marker { color: var(--accent); }
.keyboard-status-message {
  min-height: 280px;
  display: grid;
  place-items: center;
  padding: 36px 24px;
  border: 1px dashed rgba(199,154,255,.45);
  border-radius: 16px;
  background: rgba(199,154,255,.055);
  color: var(--text);
  font-size: clamp(1.35rem, 3vw, 2.25rem);
  font-weight: 850;
  text-align: center;
}
.keyboard-status-message.pending {
  color: var(--muted);
  border-color: var(--line);
  background: rgba(255,255,255,.025);
}
.dashboard-side {
  grid-area: side;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  width: 100%;
  max-width: none;
  align-items: stretch;
}
.reason-card,
.notes-card {
  width: 100%;
  min-width: 0;
  max-width: none;
  padding: 22px 24px 24px;
}
.reason-card h2 {
  margin: 0 0 14px;
}
.reason-card #reason {
  max-width: 68ch;
  line-height: 1.5;
}
.notes-card {
  display: flex;
  flex-direction: column;
}
.notes-card .card-head {
  margin-bottom: 12px;
}
.notes-card h2 {
  margin: 0 0 4px;
}
.dashboard-side > .reason-card,
.dashboard-side > .notes-card { height: 100%; }
.notes-card .notes { flex: 1 1 auto; }
.glossary-card { flex: 0 1 auto; }
.adjust-card {
  grid-area: adjust;
  width: 100%;
  max-width: none;
  padding: 2px 0 0;
}
.adjust-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.adjust-section-head h2 {
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
@media (max-width: 820px) {
  .song-summary-card,
  .song-summary-card.has-guitarist-profiles {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "identity"
      "controls"
      "signal";
  }
  .song-summary-card.has-practice-toggle,
  .song-summary-card.has-practice-toggle.has-guitarist-profiles {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "action"
      "identity"
      "controls"
      "signal";
  }
  .settings-text,
  .settings-text.masonry-ready {
    column-width: auto;
    column-count: 1;
    column-rule: 0;
  }
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.amp-baseline-name { color: var(--accent); font-weight: 850; margin-bottom: 7px; }
.muted { color: var(--muted); }
.pedal-grid, .glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
  gap: 10px;
}
.adjust-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  justify-content: start;
  align-items: stretch;
  gap: 10px;
}
.mini-card {
  border: 1px solid var(--line);
  background: rgba(11,17,24,.55);
  border-radius: 13px;
  padding: 13px;
}
.mini-card h3 { margin: 0 0 5px; color: var(--accent-2); }
.mini-card p { margin: 4px 0 0; }
.adjustment-card {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: linear-gradient(145deg, rgba(28,36,48,.78), rgba(15,21,29,.82));
}
.adjustment-number {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,178,62,.55);
  border-radius: 8px;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 900;
}
.adjustment-card .term {
  color: var(--accent-2);
  line-height: 1.35;
}
.adjustment-card p {
  margin: 6px 0 0;
  color: var(--text);
  line-height: 1.46;
}
.term { color: var(--accent); font-weight: 850; }
.notes {
  width: 100%;
  min-height: 88px;
  resize: vertical;
  color: var(--text);
  background: #0c1219;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  outline: none;
}
.notes:focus { border-color: var(--accent-2); }
.save-status { color: var(--good); font-size: .82rem; min-height: 1.25em; }
.empty { color: var(--muted); padding: 20px 0; text-align: center; }
.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 50;
  background: rgba(4,8,13,.78);
  padding: 24px;
  overflow: auto;
}
.modal.open { display: block; }
.modal-panel {
  width: min(1050px, 100%);
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.modal-header { display: flex; justify-content: space-between; gap: 14px; align-items: center; margin-bottom: 15px; }
.modal-header h2 { margin: 0; }
.dictionary-list { display: grid; gap: 10px; margin-top: 14px; }
.dictionary-row {
  display: grid;
  grid-template-columns: minmax(130px, .45fr) minmax(0, 1.55fr);
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding: 10px 4px;
}
.dictionary-row:last-child { border-bottom: 0; }
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: #101823;
  border: 1px solid var(--accent-2);
  color: var(--text);
  border-radius: 12px;
  padding: 11px 14px;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: .2s ease;
  z-index: 70;
}
.toast.show { opacity: 1; transform: translateY(0); }
body[data-mode="drums"] .neutral-state-mark {
  border-color: rgba(113,196,255,.5);
  background: rgba(113,196,255,.09);
  color: var(--accent-2);
}
body[data-mode="bass"] .neutral-state-mark {
  border-color: rgba(130,211,155,.52);
  background: rgba(130,211,155,.09);
  color: var(--good);
}
body[data-mode="keyboard"] .neutral-state-mark {
  border-color: rgba(199,154,255,.55);
  background: rgba(199,154,255,.09);
  color: #d2adff;
}
.signal-node.keyboard { border-color: rgba(199,154,255,.72); }
.signal-node.bass { border-color: rgba(130,211,155,.72); }
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .song-summary-card,
  .settings-card,
  .dashboard-side,
  .reason-card,
  .notes-card { max-width: 100%; }
}

@media (max-width: 680px) {
  .dashboard-side,
  .adjust-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }
}
@media (max-width: 900px) {
  .topbar {
    grid-template-columns: 1fr;
    grid-template-areas:
      "brand"
      "utilities"
      "modes";
    text-align: center;
  }
  .utility-actions { justify-content: center; }
}
@media (max-width: 640px) {
  .app-shell { padding: 12px; }
  h1 { white-space: normal; }
  .instrument-switcher {
    width: 100%;
    grid-template-columns: repeat(4, minmax(96px, 1fr));
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 3px;
  }
  .instrument-mode-btn {
    min-height: 44px;
    padding: 9px 10px;
    font-size: .88rem;
  }
  .grid { gap: 12px; }
  .card, .hero { border-radius: 14px; padding: 16px; }
  .search-results-head { display: grid; }
  .search-results-head .btn { justify-self: start; }
  .search-result-button { grid-template-columns: 1fr; }
  .search-result-action { white-space: normal; }
  .dictionary-row { grid-template-columns: 1fr; gap: 3px; }
}

/* v94 density refinement: the app now presents at browser 100% with the
   tighter visual density that previously required roughly 90% browser zoom. */
:root { --radius: 16px; }
html { font-size: 90%; }
body { line-height: 1.44; }
.app-shell { padding: 20px; }
.topbar { gap: 18px 24px; margin-bottom: 20px; }
h1 { font-size: clamp(1.3rem, 3.4vw, 2.85rem); }
.utility-actions { gap: 8px; }
.instrument-switcher { width: min(720px, 100%); gap: 12px; }
.btn.instrument-mode-btn { min-height: 44px; border-radius: 12px; }
.btn { padding: 9px 13px; }
.layout { grid-template-columns: 295px minmax(0, 1fr); gap: 24px; }
.sidebar { top: 14px; padding: 14px; }
.control-label { margin-bottom: 6px; }
.field { padding: 10px 11px; }
.control-stack,
.search-form { gap: 11px; }
.search-input-row { grid-template-columns: minmax(0, 1fr) 42px; }
.search-submit { width: 42px; height: 42px; }
.filter-section { gap: 9px; padding-top: 11px; }
.filter-grid { gap: 8px; }
.search-results-page { min-height: 470px; padding: clamp(19px, 3.4vw, 32px); }
.search-results-head { gap: 15px; padding-bottom: 17px; }
.card.search-results-page h2 { font-size: clamp(1.45rem, 2.5vw, 2.05rem); }
.search-criteria { margin-top: 13px; }
.search-results-list { gap: 9px; margin-top: 15px; }
.search-result-button { gap: 14px; padding: 13px 14px; }
.search-empty { padding: clamp(30px, 6vw, 60px) 16px; }
.neutral-state { min-height: 470px; padding: clamp(24px, 5vw, 52px); }
.neutral-state-mark { width: 49px; height: 49px; margin-bottom: 14px; border-radius: 14px; }
.card.neutral-state h2 { font-size: clamp(1.35rem, 2.5vw, 1.9rem); }
.sidebar-meta { margin-top: 10px; }
.keyboard-note { margin-top: 12px; padding-top: 11px; }
.hero { padding: clamp(18px, 3.4vw, 30px); }
.song-title { font-size: clamp(1.7rem, 3.35vw, 3rem); }
.artist { margin: 5px 0 15px; }
.badges { gap: 7px; }
.badge { gap: 6px; padding: 6px 9px; }
.guitarist-profile-controls { margin-top: 13px; }
.guitarist-profile-buttons { gap: 7px; }
.guitarist-profile-switch { min-height: 40px; }
.signal-wrap { padding-top: 12px; }
.signal-title { margin-bottom: 7px; }
.signal-chain { gap: 7px; }
.signal-node { padding: 7px 9px; }
.grid { gap: 15px; margin-top: 14px; }
.song-summary-card {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 37%);
  column-gap: 26px;
  row-gap: 15px;
  padding: 18px 22px;
}
.song-summary-card.has-practice-toggle.has-guitarist-profiles { row-gap: 10px; }
.song-summary-card .song-title { font-size: clamp(1.8rem, 3.35vw, 3rem); }
.song-summary-card .artist { margin-bottom: 10px; }
.song-summary-card .guitarist-profile-switch { min-height: 38px; padding: 7px 10px; }
.settings-card { padding: 18px 20px 20px; }
.settings-card .card-head { padding-bottom: 8px; }
.settings-text,
.settings-text.masonry-ready {
  column-width: 255px;
  column-gap: 32px;
  font-size: .92rem;
  line-height: 1.42;
}
.gear-settings,
.settings-text.masonry-ready .gear-settings { margin-bottom: 15px; padding-bottom: 13px; }
.gear-name { margin-bottom: 6px; }
.gear-instructions li { margin: 2px 0; }
.keyboard-status-message { min-height: 245px; padding: 30px 20px; font-size: clamp(1.25rem, 2.5vw, 1.95rem); }
.dashboard-side { gap: 14px; }
.reason-card,
.notes-card { padding: 18px 20px 20px; }
.reason-card h2 { margin-bottom: 11px; }
.reason-card #reason { line-height: 1.44; }
.notes-card .card-head { margin-bottom: 10px; }
.adjust-section-head { margin-bottom: 8px; }
.card-head { gap: 10px; margin-bottom: 8px; }
.pedal-grid,
.glossary-grid,
.adjust-grid { gap: 8px; }
.mini-card { border-radius: 12px; padding: 11px 12px; }
.adjustment-card { grid-template-columns: 24px minmax(0, 1fr); gap: 8px; padding: 11px 12px; border-radius: 12px; }
.adjustment-number { width: 22px; height: 22px; border-radius: 7px; }
.adjustment-card p { margin-top: 5px; line-height: 1.4; }
.notes { min-height: 78px; padding: 10px 11px; }
.empty { padding: 17px 0; }
.modal { padding: 20px; }
.modal-panel { padding: 19px; }
.modal-header { gap: 12px; margin-bottom: 12px; }
.dictionary-list { gap: 8px; margin-top: 12px; }
.dictionary-row { gap: 12px; padding: 8px 4px; }
.toast { right: 18px; bottom: 18px; padding: 10px 12px; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 820px) {
  .song-summary-card { padding: 17px 18px; }
}
@media (max-width: 640px) {
  html { font-size: 94%; }
  .app-shell { padding: 12px; }
  .topbar { gap: 14px; margin-bottom: 16px; }
  .instrument-switcher { gap: 8px; }
  .btn.instrument-mode-btn { min-height: 44px; }
  .grid { gap: 12px; }
  .card,
  .hero { border-radius: 14px; padding: 15px; }
  .song-summary-card { padding: 15px; }
  .settings-card,
  .reason-card,
  .notes-card { padding: 15px; }
  .search-submit { width: 44px; height: 44px; }
  .search-input-row { grid-template-columns: minmax(0, 1fr) 44px; }
}


/* Personal pedal-swap workspace */
.pedal-swap-button {
  flex: 0 0 auto;
  border-color: rgba(255,178,62,.62);
  background: rgba(255,178,62,.10);
  color: var(--accent);
  font-weight: 850;
}
.pedal-swap-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 16px;
  align-items: center;
  margin: 0 0 16px;
  padding: 12px 14px;
  border: 1px solid rgba(113,196,255,.38);
  border-radius: 13px;
  background: linear-gradient(145deg, rgba(27,49,67,.58), rgba(15,21,29,.82));
}
.pedal-swap-status {
  min-width: 0;
}
.pedal-swap-status strong {
  color: var(--accent-2);
}
.pedal-swap-status p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: .84rem;
}
.pedal-swap-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.pedal-swap-actions .btn {
  padding: 7px 11px;
  font-size: .82rem;
}
.pedal-swap-actions .btn.is-active {
  border-color: var(--accent);
  background: rgba(255,178,62,.15);
  color: var(--accent);
}
.swap-modal-panel { width: min(860px, 100%); }
.swap-intro {
  margin: -2px 0 16px;
  color: var(--muted);
}
.swap-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.swap-preview {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(11,17,24,.58);
}
.swap-preview h3 {
  margin: 0;
  color: var(--accent-2);
  font-size: 1rem;
}
.swap-preview p { margin: 0; }
.swap-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.swap-preview-card {
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(28,36,48,.54);
}
.swap-preview-card .term { margin-bottom: 5px; }
.swap-preview-card ul {
  margin: 0;
  padding-left: 18px;
}
.swap-preview-card li + li { margin-top: 3px; }
.swap-modal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}
.swap-storage-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: .82rem;
}
@media (max-width: 720px) {
  .pedal-swap-bar { grid-template-columns: 1fr; }
  .pedal-swap-actions { justify-content: flex-start; }
  .swap-form-grid, .swap-preview-grid { grid-template-columns: 1fr; }
}

@media print {
  body { background: #fff; color: #111; }
  .app-shell { width: 100%; padding: 0; }
  .topbar, .sidebar, .utility-actions, .instrument-switcher, .practice-output-toggle, .pedal-swap-button, .pedal-swap-bar, .notes-card, .modal, .toast { display: none !important; }
  .layout { display: block; }
  .hero, .card { box-shadow: none; background: #fff; border: 1px solid #bbb; break-inside: avoid; }
  .grid { display: block; }
  .song-summary-card, .card, .adjust-card { width: 100% !important; max-width: none !important; margin-top: 10px; }
  .settings-text, .mini-card { background: #fff; color: #111; }
  .muted, .signal-title { color: #444; }
  .artist, .mini-card h3 { color: #075c93; }
  .term, .amp-baseline-name, .badge strong { color: #855500; }
}