.guitar-lab-view {
  --lab-violet: #7657ff;
  --lab-pink: #f577a1;
  --lab-orange: #f0771e;
  --lab-mint: #68f4cf;
  --lab-panel: rgba(24, 19, 43, 0.86);
}

.guitar-lab-intro {
  padding: 30px 32px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 30px;
  background:
    radial-gradient(circle at 90% 20%, rgba(104, 244, 207, 0.12), transparent 27%),
    radial-gradient(circle at 12% 90%, rgba(240, 119, 30, 0.16), transparent 34%),
    linear-gradient(135deg, rgba(42, 32, 70, 0.96), rgba(21, 17, 40, 0.94));
  box-shadow: 0 25px 70px rgba(6, 4, 18, 0.28);
}

.guitar-lab-intro > div { max-width: 820px; }
.guitar-lab-intro h1 { max-width: 780px; }

.guitar-lab-badge {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid rgba(104, 244, 207, 0.3);
  border-radius: 999px;
  background: rgba(104, 244, 207, 0.11);
  color: #9effe4;
  font-size: 0.8rem;
  font-weight: 900;
  white-space: nowrap;
}

.guitar-lab-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: 22px;
  margin-top: 22px;
}

.tuner-card,
.chord-practice-card,
.chord-library-panel {
  border: 1px solid rgba(255, 255, 255, 0.13);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.065), transparent 58%),
    var(--lab-panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 22px 55px rgba(6, 4, 18, 0.24);
}

.tuner-card { min-width: 0; }
.tuner-heading-row { align-items: start; }

.tuner-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(244, 240, 255, 0.68);
  font-size: 0.7rem;
  font-weight: 900;
}

.tuner-live-pill::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #837b98;
  content: "";
}

.tuner-live-pill.is-live {
  border-color: rgba(104, 244, 207, 0.3);
  background: rgba(104, 244, 207, 0.1);
  color: #9effe4;
}

.tuner-live-pill.is-live::before {
  background: var(--lab-mint);
  box-shadow: 0 0 12px rgba(104, 244, 207, 0.85);
  animation: tuner-live-pulse 1.4s ease-in-out infinite;
}

.tuner-display {
  position: relative;
  display: grid;
  min-height: 640px;
  place-items: center;
  margin: 20px 0 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 68%, rgba(118, 87, 255, 0.23), transparent 39%),
    linear-gradient(180deg, rgba(8, 7, 20, 0.42), rgba(8, 7, 20, 0.74));
}

.tuner-display::after {
  position: absolute;
  right: 12%;
  bottom: -42%;
  width: 44%;
  aspect-ratio: 1;
  border: 1px solid rgba(245, 119, 161, 0.15);
  border-radius: 50%;
  content: "";
}

.tuner-arc {
  position: absolute;
  top: 25px;
  left: 50%;
  z-index: 5;
  width: min(390px, 84%);
  height: 160px;
  overflow: hidden;
  border-top: 12px solid rgba(255, 255, 255, 0.12);
  border-radius: 50% 50% 0 0;
  transform: translateX(-50%);
}

.tuner-arc::before {
  position: absolute;
  top: -12px;
  left: 35%;
  width: 30%;
  height: 12px;
  border-radius: 99px;
  background: rgba(104, 244, 207, 0.4);
  box-shadow: 0 0 22px rgba(104, 244, 207, 0.25);
  content: "";
}

.tuner-tick {
  position: absolute;
  top: 18px;
  color: rgba(244, 240, 255, 0.52);
  font-size: 0.65rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tick-flat { left: 2px; }
.tick-centre { left: 50%; color: #a4ffe8; transform: translateX(-50%); }
.tick-sharp { right: 2px; }

.tuner-needle {
  --tuner-cents: 0;
  position: absolute;
  bottom: 0;
  left: 50%;
  z-index: 2;
  width: 3px;
  height: 112px;
  border-radius: 99px;
  background: linear-gradient(180deg, #fff, var(--lab-pink));
  box-shadow: 0 0 18px rgba(245, 119, 161, 0.65);
  transform: translateX(-50%) rotate(calc(var(--tuner-cents) * 0.8deg));
  transform-origin: 50% 100%;
  transition: transform 130ms ease-out, background 180ms ease;
}

.tuner-needle::after {
  position: absolute;
  bottom: -9px;
  left: 50%;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.72);
  content: "";
  transform: translateX(-50%);
}

.tuner-note-wrap {
  position: absolute;
  top: 238px;
  left: 50%;
  z-index: 6;
  display: grid;
  width: min(240px, 60%);
  justify-items: center;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 24px;
  background: rgba(12, 9, 25, 0.76);
  box-shadow: 0 16px 40px rgba(5, 3, 15, 0.34);
  backdrop-filter: blur(12px);
  text-align: center;
  transform: translateX(-50%);
}

.tuner-note {
  display: grid;
  width: 88px;
  height: 88px;
  place-items: center;
  margin-bottom: 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(240, 119, 30, 0.95), rgba(118, 87, 255, 0.94));
  box-shadow: 0 18px 45px rgba(118, 87, 255, 0.35);
  color: white;
  font-size: 3rem;
  font-weight: 950;
}

.tuner-note-wrap strong { color: #fff; font-size: 1rem; }
.tuner-note-wrap small { margin-top: 4px; color: rgba(244, 240, 255, 0.58); }
.tuner-display[data-state="in-tune"] .tuner-note { background: linear-gradient(145deg, #16d994, #5ae9d3); color: #081713; box-shadow: 0 18px 48px rgba(22, 217, 148, 0.35); }
.tuner-display[data-state="in-tune"] .tuner-needle { background: #8effdf; box-shadow: 0 0 22px rgba(104, 244, 207, 0.9); }
.tuner-display[data-state="error"] .tuner-note { background: linear-gradient(145deg, #cc4059, #f577a1); }

.tuner-guitar-stage {
  position: absolute;
  inset: 100px 0 10px;
  z-index: 1;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.tuner-guitar-visual {
  display: block;
  width: min(370px, 74%);
  height: 520px;
  overflow: visible;
  filter: drop-shadow(0 24px 34px rgba(4, 2, 15, 0.52));
}

.guitar-head {
  fill: url(#tuner-guitar-body);
  stroke: rgba(255, 255, 255, 0.42);
  stroke-width: 2;
}

.guitar-neck {
  fill: url(#tuner-guitar-neck);
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 2;
}

.guitar-body {
  fill: url(#tuner-guitar-body);
  stroke: rgba(255, 255, 255, 0.38);
  stroke-width: 3;
}

.guitar-sound-hole { fill: url(#tuner-guitar-hole); }
.guitar-bridge { fill: #24172f; stroke: rgba(255, 255, 255, 0.2); stroke-width: 1.5; }
.guitar-frets line { stroke: rgba(255, 255, 255, 0.3); stroke-width: 2; }

.guitar-string-lines path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.7);
  stroke-linecap: round;
  stroke-width: 1.3;
  transition: stroke 160ms ease, stroke-width 160ms ease, filter 160ms ease;
}

.guitar-string-lines path:nth-child(-n + 2) { stroke-width: 2.2; }
.guitar-string-lines path:nth-child(3),
.guitar-string-lines path:nth-child(4) { stroke-width: 1.7; }

.guitar-note-target circle {
  fill: rgba(20, 15, 37, 0.96);
  stroke: rgba(255, 255, 255, 0.26);
  stroke-width: 2;
  transition: fill 160ms ease, stroke 160ms ease, filter 160ms ease;
}

.guitar-note-target text:not(.guitar-note-number) {
  fill: #fff;
  font: 950 20px/1 system-ui, sans-serif;
  text-anchor: middle;
  dominant-baseline: middle;
}

.guitar-note-target .guitar-note-number {
  fill: rgba(244, 240, 255, 0.68);
  font: 900 10px/1 system-ui, sans-serif;
  text-anchor: middle;
}

.guitar-note-target.is-selected circle { fill: rgba(245, 119, 161, 0.3); stroke: #f89abc; }
.guitar-note-target.is-detected circle { fill: #56e8c1; stroke: #d4fff3; filter: drop-shadow(0 0 14px rgba(104, 244, 207, 0.95)); }
.guitar-note-target.is-detected text:not(.guitar-note-number) { fill: #071611; }
.guitar-note-target.is-detected .guitar-note-number { fill: #0d4939; }
.guitar-string-lines path.is-selected { stroke: #f8a0bf; stroke-width: 3; filter: drop-shadow(0 0 7px rgba(245, 119, 161, 0.85)); }
.guitar-string-lines path.is-detected { stroke: #84ffdc; stroke-width: 4; filter: drop-shadow(0 0 8px rgba(104, 244, 207, 1)); }

.tuner-string-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}

.tuner-string-row button {
  display: grid;
  min-width: 0;
  min-height: 56px;
  place-items: center;
  gap: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.055);
  color: rgba(244, 240, 255, 0.68);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.tuner-string-row button:hover,
.tuner-string-row button:focus-visible,
.tuner-string-row button.is-selected { border-color: rgba(245, 119, 161, 0.54); background: rgba(245, 119, 161, 0.12); color: #fff; transform: translateY(-2px); }
.tuner-string-row button.is-detected { border-color: rgba(104, 244, 207, 0.55); background: rgba(104, 244, 207, 0.13); color: #a4ffe8; box-shadow: 0 0 20px rgba(104, 244, 207, 0.12); }
.tuner-string-row strong { font-size: 1.1rem; }
.tuner-string-row small { color: inherit; font-size: 0.62rem; }

.tuner-status {
  min-height: 45px;
  margin: 14px 0 0;
  color: rgba(244, 240, 255, 0.76);
  font-size: 0.85rem;
  line-height: 1.5;
}

.tuner-actions { display: grid; grid-template-columns: 1fr; margin-top: 8px; }
.guitar-privacy-note { margin: 12px 0 0; color: rgba(244, 240, 255, 0.48); font-size: 0.72rem; line-height: 1.45; }

.chord-practice-card {
  display: grid;
  align-content: start;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 44%, rgba(118, 87, 255, 0.2), transparent 40%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.065), transparent 58%),
    var(--lab-panel);
}

.chord-practice-card > div:first-child { text-align: center; }
.chord-practice-card h2 { font-size: clamp(1.65rem, 3vw, 2.25rem); }
.chord-practice-card > div:first-child p:last-child { max-width: 430px; margin: 8px auto 0; color: rgba(244, 240, 255, 0.64); }
.featured-chord { display: grid; place-items: center; min-height: 330px; }

.chord-diagram {
  display: block;
  width: 100%;
  max-width: 210px;
  height: auto;
  overflow: visible;
}

.chord-diagram.is-featured { width: min(290px, 76%); max-width: 290px; filter: drop-shadow(0 22px 24px rgba(6, 4, 18, 0.42)); }
.chord-grid-lines line { stroke: rgba(248, 245, 255, 0.8); stroke-width: 2.2; }
.chord-grid-lines .chord-nut { stroke: #fff; stroke-width: 9; stroke-linecap: round; }
.chord-open-marker { fill: #f7a33f; font: 900 17px/1 system-ui, sans-serif; text-anchor: middle; dominant-baseline: central; }
.chord-open-circle { fill: none; stroke: #f7a33f; stroke-width: 4; }
.chord-finger circle { fill: #f59a3d; stroke: rgba(255, 255, 255, 0.2); stroke-width: 2; }
.chord-finger text { fill: #171126; font: 950 14px/1 system-ui, sans-serif; text-anchor: middle; dominant-baseline: central; }

.chord-tip {
  padding: 16px 18px;
  border: 1px solid rgba(240, 119, 30, 0.2);
  border-radius: 18px;
  background: rgba(240, 119, 30, 0.08);
}
.chord-tip span { color: #ffb45f; font-size: 0.66rem; font-weight: 950; letter-spacing: 0.12em; text-transform: uppercase; }
.chord-tip p { margin: 5px 0 0; color: rgba(248, 245, 255, 0.78); font-size: 0.82rem; line-height: 1.5; }

.chord-library-panel { margin-top: 22px; }
.chord-library-heading { align-items: end; gap: 18px; }
.chord-library-heading p:last-child { max-width: 650px; margin-top: 6px; color: rgba(244, 240, 255, 0.58); }
.chord-filters { display: flex; gap: 7px; padding: 5px; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 14px; background: rgba(255, 255, 255, 0.045); }
.chord-filters button { min-height: 35px; padding: 0 13px; border: 0; border-radius: 10px; background: transparent; color: rgba(244, 240, 255, 0.58); font-size: 0.72rem; font-weight: 900; cursor: pointer; }
.chord-filters button.is-active { background: linear-gradient(135deg, rgba(240, 119, 30, 0.9), rgba(245, 119, 161, 0.85)); color: #fff; }

.chord-library-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.chord-card {
  display: grid;
  grid-template-rows: 180px auto;
  min-width: 0;
  justify-items: center;
  padding: 18px 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.025));
  color: #fff;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.chord-card:hover,
.chord-card:focus-visible { border-color: rgba(245, 119, 161, 0.38); background: rgba(245, 119, 161, 0.075); transform: translateY(-4px); }
.chord-card.is-selected { border-color: rgba(104, 244, 207, 0.42); background: rgba(104, 244, 207, 0.06); box-shadow: 0 14px 35px rgba(104, 244, 207, 0.08); }
.chord-card .chord-diagram { align-self: center; max-width: 150px; max-height: 174px; }
.chord-card-footer { display: grid; min-height: 76px; justify-items: center; align-content: start; gap: 2px; padding-top: 10px; border-top: 1px solid rgba(255, 255, 255, 0.08); text-align: center; }
.chord-card-note { color: #fff; font-size: 1.25rem; line-height: 1; }
.chord-card-kind { color: rgba(244, 240, 255, 0.76); font-size: 0.76rem; font-weight: 800; text-transform: capitalize; }
.chord-card-footer small { margin-top: 3px; color: rgba(244, 240, 255, 0.44); font-size: 0.62rem; letter-spacing: 0.08em; }

@keyframes tuner-live-pulse {
  50% { opacity: 0.45; transform: scale(0.78); }
}

@media (max-width: 1120px) {
  .guitar-lab-grid { grid-template-columns: 1fr; }
  .chord-practice-card { grid-template-columns: minmax(0, 0.82fr) minmax(280px, 1.18fr); align-items: center; gap: 20px; }
  .chord-practice-card .chord-tip { grid-column: 1 / -1; }
  .chord-library-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
  .bottom-nav { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .bottom-nav .nav-item span { font-size: 0.55rem; }
  .guitar-lab-intro { padding: 24px 20px; border-radius: 24px; }
  .guitar-lab-intro { align-items: start; }
  .guitar-lab-badge { min-height: 34px; padding: 0 12px; font-size: 0.68rem; }
  .guitar-lab-grid { gap: 14px; margin-top: 14px; }
  .tuner-card,
  .chord-practice-card,
  .chord-library-panel { border-radius: 24px; }
  .tuner-display { min-height: 570px; border-radius: 23px; }
  .tuner-guitar-stage { inset: 88px 0 8px; }
  .tuner-guitar-visual { width: min(340px, 88%); height: 470px; }
  .tuner-note-wrap { top: 215px; width: min(220px, 68%); }
  .tuner-note { width: 76px; height: 76px; font-size: 2.5rem; }
  .tuner-arc { top: 24px; height: 142px; }
  .tuner-needle { height: 98px; }
  .chord-practice-card { display: grid; grid-template-columns: 1fr; gap: 0; }
  .featured-chord { min-height: 290px; }
  .chord-library-heading { align-items: start; }
  .chord-filters { width: 100%; }
  .chord-filters button { flex: 1; }
  .chord-library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .chord-card { grid-template-rows: 158px auto; padding: 13px 7px 12px; border-radius: 18px; }
  .chord-card .chord-diagram { max-width: 130px; }
}

@media (max-width: 390px) {
  .bottom-nav .nav-item { min-height: 52px; }
  .bottom-nav .nav-item svg { width: 18px; height: 18px; }
  .bottom-nav .nav-item span { font-size: 0.5rem; }
  .tuner-string-row { gap: 5px; }
  .tuner-string-row button { min-height: 50px; border-radius: 12px; }
  .tuner-display { min-height: 530px; }
  .tuner-guitar-stage { inset: 84px -14px 4px; }
  .tuner-guitar-visual { width: 100%; height: 430px; }
  .tuner-note-wrap { top: 202px; width: 72%; padding: 10px; }
  .tuner-note { width: 66px; height: 66px; font-size: 2.2rem; }
  .chord-card .chord-diagram { max-width: 118px; }
}

@media (prefers-reduced-motion: reduce) {
  .tuner-live-pill.is-live::before { animation: none; }
  .tuner-needle,
  .chord-card,
  .tuner-string-row button { transition: none; }
}

/* Headstock tuner layout */
.tuner-subheading {
  margin: 5px 0 0;
  color: rgba(244, 240, 255, 0.62);
  font-size: 0.83rem;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.tuner-subheading span { color: var(--lab-mint); }

.tuner-display {
  min-height: 900px;
  background:
    radial-gradient(circle at 50% 19%, rgba(104, 244, 207, 0.09), transparent 27%),
    radial-gradient(circle at 50% 74%, rgba(240, 119, 30, 0.13), transparent 38%),
    linear-gradient(180deg, rgba(9, 8, 22, 0.72), rgba(18, 13, 31, 0.96));
}

.tuner-display::after { display: none; }

.tuner-arc {
  top: 10px;
  z-index: 5;
  width: min(560px, 98%);
  height: 300px;
  overflow: visible;
  border: 0;
  border-radius: 0;
}

.tuner-arc::before { display: none; }
.tuner-gauge { display: block; width: 100%; height: 100%; overflow: visible; }
.gauge-track { fill: none; stroke: rgba(245, 240, 224, 0.24); stroke-width: 8; stroke-linecap: round; }
.gauge-flat-zone,
.gauge-sharp-zone,
.gauge-centre-zone { fill: none; stroke-linecap: butt; stroke-width: 42; }
.gauge-flat-zone { stroke: #f4b441; }
.gauge-centre-zone { stroke: #6fdb46; }
.gauge-sharp-zone { stroke: #ef6e61; }
.gauge-ticks line { stroke: rgba(244, 240, 255, 0.64); stroke-width: 3; }
.gauge-ticks line:nth-child(6) { stroke: #74edbc; stroke-width: 5; }
.gauge-labels text { fill: rgba(250, 247, 255, 0.84); font: 850 19px/1 system-ui, sans-serif; text-anchor: middle; }

.tuner-needle {
  bottom: 37px;
  z-index: 7;
  width: 6px;
  height: 152px;
  background: linear-gradient(180deg, #fefdf7, #161522 88%);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.42);
  transform: translateX(-50%) rotate(calc(var(--tuner-cents) * 1.3deg));
}

.tuner-needle::after {
  width: 28px;
  height: 28px;
  border: 7px solid #24232a;
  background: #f7f1d9;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.tuner-note-wrap {
  top: 150px;
  width: min(280px, 76%);
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.tuner-note {
  width: auto;
  height: auto;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: #fff;
  font-size: clamp(4rem, 8vw, 5.7rem);
  line-height: 0.95;
}

.tuner-note-wrap strong {
  margin-top: 8px;
  color: rgba(244, 240, 255, 0.72);
  font-size: 1rem;
}

.tuner-direction {
  margin-top: 15px;
  color: #62dc98;
  font-size: 1.45rem;
  font-weight: 950;
  letter-spacing: 0.08em;
}

.tuner-cents { margin-top: 4px; color: #7ee7aa; font-size: 1rem; font-weight: 850; }
.tuner-frequency { margin-top: 3px; min-height: 16px; color: rgba(244, 240, 255, 0.42); font-size: 0.68rem; }
.tuner-display[data-state="sharp"] .tuner-direction,
.tuner-display[data-state="sharp"] .tuner-cents { color: #ff8c7f; }
.tuner-display[data-state="in-tune"] .tuner-note,
.tuner-display[data-state="error"] .tuner-note { background: transparent; box-shadow: none; color: #fff; }

.tuner-guitar-stage { inset: 355px 0 12px; }

.tuner-guitar-visual {
  width: min(390px, 94%);
  height: 525px;
  filter: drop-shadow(0 28px 38px rgba(3, 2, 10, 0.62));
}

.guitar-head {
  fill: url(#tuner-headstock-wood);
  stroke: #bd8b58;
  stroke-width: 4;
}

.guitar-neck { fill: url(#tuner-neck-wood); stroke: #9f704c; stroke-width: 2; }
.guitar-head-inlay { fill: none; stroke: rgba(246, 181, 75, 0.82); stroke-width: 5; }
.guitar-nut { fill: #eee3c9; stroke: #8d7458; stroke-width: 2; }

.guitar-tuning-peg rect {
  fill: #24252a;
  stroke: #bbb6aa;
  stroke-width: 2.5;
  transition: fill 160ms ease, stroke 160ms ease, filter 160ms ease;
}

.guitar-tuning-peg line { stroke: #cfc7b2; stroke-width: 7; }
.guitar-tuning-peg circle { fill: #d9d4c7; stroke: #342f2a; stroke-width: 6; }
.guitar-tuning-peg text { fill: #fff; font: 950 15px/1 system-ui, sans-serif; text-anchor: middle; }
.guitar-tuning-peg.is-selected rect { fill: #5d3e69; stroke: #f8a0bf; }
.guitar-tuning-peg.is-detected rect { fill: #2d9d47; stroke: #b9ff8c; filter: url(#active-peg-glow); }
.guitar-tuning-peg.is-detected circle { fill: #86e95d; stroke: #23451f; filter: url(#active-peg-glow); }

.guitar-string-lines path { stroke: rgba(242, 222, 183, 0.84); }
.guitar-string-lines path:nth-child(-n + 2) { stroke: #cda66a; stroke-width: 3; }
.guitar-string-lines path.is-selected { stroke: #f8a0bf; }
.guitar-string-lines path.is-detected { stroke: #82ef54; filter: url(#active-peg-glow); }

.tuner-string-row {
  gap: 9px;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.035);
}

.tuner-string-row button { min-height: 68px; border-radius: 16px; }
.tuner-string-row button.is-selected,
.tuner-string-row button.is-detected { border-color: rgba(130, 239, 84, 0.7); background: linear-gradient(180deg, rgba(66, 186, 76, 0.86), rgba(28, 120, 62, 0.9)); color: #fff; box-shadow: 0 0 24px rgba(93, 229, 91, 0.28); }

@media (max-width: 780px) {
  .tuner-display { min-height: 790px; }
  .tuner-arc { top: 8px; width: 104%; height: 245px; }
  .tuner-needle { bottom: 32px; height: 121px; }
  .tuner-note-wrap { top: 127px; width: 82%; }
  .tuner-note { font-size: 4.1rem; }
  .tuner-note-wrap strong { margin-top: 4px; font-size: 0.84rem; }
  .tuner-direction { margin-top: 10px; font-size: 1.1rem; }
  .tuner-cents { font-size: 0.82rem; }
  .tuner-guitar-stage { inset: 305px -8px 5px; }
  .tuner-guitar-visual { width: min(350px, 100%); height: 475px; }
  .gauge-labels text { font-size: 17px; }
  .tuner-string-row { gap: 5px; padding: 5px; border-radius: 16px; }
  .tuner-string-row button { min-height: 58px; border-radius: 13px; }
}

@media (max-width: 390px) {
  .tuner-display { min-height: 750px; }
  .tuner-arc { height: 225px; }
  .tuner-needle { bottom: 30px; height: 111px; }
  .tuner-note-wrap { top: 120px; }
  .tuner-note { font-size: 3.7rem; }
  .tuner-guitar-stage { inset: 290px -15px 2px; }
  .tuner-guitar-visual { height: 450px; }
  .tuner-string-row strong { font-size: 1rem; }
}