/* Снежная музыка (music.sneznyj.com): тёмное «приложение» с синим акцентом.
   Меню слева, поиск сверху, плеер снизу; на телефоне — нижние вкладки. Цвета — в начале файла. */
:root {
  --bg: #070b13;
  --side: #0a0f19;
  --surface: #0f1624;
  --surface-2: #162034;
  --surface-3: #1d2a42;
  --ink: #eef3fb;
  --ink-2: #b3bfd3;
  --ink-3: #7a879e;
  --line: #1a2437;
  --line-strong: #2a3852;
  --accent: #4f8cff;
  --accent-hover: #6c9fff;
  --accent-2: #38d6ff;
  --accent-ink: #ffffff;
  --accent-text: #86b2ff;
  --accent-soft: rgb(79 140 255 / 0.16);
  --good: #3ccf91;
  --good-soft: rgb(60 207 145 / 0.15);
  --warm: #ff8a33;
  --shadow: 0 18px 40px -20px rgb(0 0 0 / 0.75);
  --wood-1: #b98352;
  --wood-2: #8a5a31;
  --wood-3: #5a361c;
  --hole: #05070c;
  --neck: #2b1d14;
  --fret: #c9bba8;
  --inlay: #e9dfd0;
  --peg: #9aa6b8;
  --string: #e8e1d4;
  --fb-wood: #131b2a;
  --fb-str: #c9d4e6;
  --fb-fret: #47566f;
  --fb-nut: #dfe7f3;
  --fb-inlay: #2b3852;

  --font: 'Golos Text', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  --radius: 18px;
  --radius-sm: 12px;
  --side-w: 248px;
  --top-h: 64px;
  --player-h: 78px;
  --tabbar-h: 0px;
  --gutter: clamp(16px, 2.6vw, 32px);
  color-scheme: dark;
}

/* ---------- основа ---------- */
[hidden] {
  display: none !important;
}
.steps > *,
.sheet > *,
.covers > *,
.rows > *,
.home > *,
.prose > *,
.step-b > * {
  min-width: 0;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--top-h) + 60px);
}
body {
  margin: 0;
  background: radial-gradient(1100px 560px at 75% -8%, rgb(79 140 255 / 0.12), transparent 62%), radial-gradient(800px 500px at 10% 110%, rgb(124 92 255 / 0.08), transparent 60%), var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font: 16px/1.6 var(--font);
  overflow-x: hidden;
}
img,
svg {
  max-width: 100%;
}
a {
  color: var(--accent-text);
  text-underline-offset: 3px;
}
h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
}
h1 {
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 800;
  text-wrap: balance;
}
h2 {
  font-size: clamp(20px, 2.2vw, 25px);
  font-weight: 700;
}
h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
p {
  margin: 0 0 1em;
}
button,
input,
select {
  font: inherit;
  color: inherit;
}
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 8px;
}
.wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.narrow {
  max-width: 860px;
}
.muted {
  color: var(--ink-3);
}
.small {
  font-size: 14px;
}
.lead {
  font-size: clamp(16px, 1.8vw, 18px);
  color: var(--ink-2);
  max-width: 70ch;
}
.eyebrow {
  font: 700 12px/1 var(--font);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 60;
}
.skip:focus {
  left: 8px;
}

/* ---------- каркас: меню слева ---------- */
.side {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--side-w);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 14px 18px;
  background: var(--side);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  scrollbar-width: thin;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  white-space: nowrap;
  padding: 0 10px 14px;
}
.logo b {
  font-weight: 800;
  background: linear-gradient(90deg, #6c9fff, #38d6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo-mark {
  width: 32px;
  height: 32px;
  flex: none;
}
.side-h {
  margin: 18px 10px 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.side-a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 12px;
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}
.side-a svg {
  width: 20px;
  height: 20px;
  flex: none;
}
.side-a:hover {
  background: var(--surface-2);
  color: var(--ink);
}
.side-a[aria-current] {
  background: linear-gradient(90deg, rgb(79 140 255 / 0.22), rgb(79 140 255 / 0.06));
  color: #fff;
  box-shadow: inset 3px 0 0 var(--accent);
}
.side-a[aria-current] svg {
  color: var(--accent-2);
}
.side-card {
  margin-top: auto;
  display: grid;
  gap: 8px;
  padding: 14px;
  border-radius: 16px;
  background: linear-gradient(140deg, #16264a, #121a2c);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  text-decoration: none;
}
.sc-k {
  font-weight: 700;
}
.side-prog {
  height: 6px;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.08);
  overflow: hidden;
}
.side-prog i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.side-prog-t {
  font-size: 13px;
  color: var(--ink-3);
}

/* ---------- каркас: верхняя панель ---------- */
.shell {
  margin-left: var(--side-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: calc(var(--player-h) + var(--tabbar-h) + 24px);
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  height: var(--top-h);
  padding: 0 var(--gutter);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.3) blur(14px);
  border-bottom: 1px solid var(--line);
}
.tb-hist {
  display: flex;
  gap: 6px;
}
.tb-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink-2);
  cursor: pointer;
}
.tb-btn:hover {
  color: var(--ink);
  border-color: var(--ink-3);
}
.tb-btn svg {
  width: 18px;
  height: 18px;
}
.logo-m {
  display: none;
}
.tb-search {
  flex: 1;
  max-width: 440px;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
}
.tb-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.tb-search svg {
  width: 18px;
  height: 18px;
  color: var(--ink-3);
  flex: none;
}
.tb-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  outline: none;
}
.tb-tabs {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.tb-tabs a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--ink-3);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}
.tb-tabs a:hover {
  color: var(--ink);
}
main {
  flex: 1;
  padding-top: 8px;
}
.crumbs {
  font-size: 14px;
  color: var(--ink-3);
  padding: 14px 0 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
}
.crumbs a {
  color: var(--ink-3);
}

/* ---------- кнопки и элементы ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}
.btn:hover {
  background: var(--accent-hover);
}
.btn:active {
  transform: translateY(1px);
}
.btn:disabled {
  opacity: 0.45;
  cursor: default;
}
.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}
.btn-play {
  background: linear-gradient(135deg, #4f8cff, #38b8ff);
  box-shadow: 0 10px 26px -10px rgb(79 140 255 / 0.8);
}
.btn-ghost {
  background: var(--surface-2);
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  background: var(--surface-3);
}
.btn-glass {
  background: rgb(255 255 255 / 0.12);
  color: #fff;
  border-color: rgb(255 255 255 / 0.18);
  backdrop-filter: blur(6px);
}
.btn-glass:hover {
  background: rgb(255 255 255 / 0.2);
}
.btn-small {
  min-height: 36px;
  padding: 6px 14px;
  font-size: 14px;
}
.btn-big {
  min-height: 56px;
  min-width: 96px;
  font-size: 22px;
}
.play-btn.on {
  background: #fff;
  color: #0a1020;
}
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--ink-2);
  cursor: pointer;
  text-decoration: none;
  font-size: 20px;
  flex: none;
}
.icon-btn:hover {
  color: var(--ink);
  border-color: var(--ink-3);
}
.icon-btn svg {
  width: 20px;
  height: 20px;
}
.tg {
  min-height: 34px;
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}
.tg[aria-pressed='true'] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-text);
}
.tg-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink-2);
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 14.5px;
}
.chip:hover {
  color: var(--ink);
  border-color: var(--ink-3);
}
.chip.on {
  background: var(--ink);
  border-color: var(--ink);
  color: #0a1020;
}
.ctl-label {
  font-size: 13px;
  color: var(--ink-3);
  font-weight: 600;
}
.ctl-slider {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.ctl-slider input {
  width: 140px;
  accent-color: var(--accent);
}
.ctl-slider output {
  font: 600 13px/1 var(--mono);
  color: var(--ink-2);
  min-width: 70px;
}
.ctl-select {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  max-width: 100%;
}
.ctl-select select {
  min-width: 0;
  flex: 1 1 auto;
  text-overflow: ellipsis;
}
select {
  min-height: 36px;
  padding: 4px 10px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  max-width: 100%;
}
.lvl {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 13px;
  color: var(--ink-3);
  white-space: nowrap;
}
.lvl i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-strong);
}
.lvl i:last-of-type {
  margin-right: 5px;
}
.lvl-1 i:nth-child(-n + 1),
.lvl-2 i:nth-child(-n + 2),
.lvl-3 i:nth-child(-n + 3) {
  background: var(--accent-2);
}

/* ---------- блоки, обложки, списки ---------- */
.block {
  margin-top: 40px;
}
.block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.block-head h2 {
  margin: 0;
}
.block-head > a {
  color: var(--ink-3);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}
.block-head > a:hover {
  color: var(--ink);
}
.covers {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 168px), 1fr));
  gap: 24px 18px;
}
.cover-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--ink);
  text-decoration: none;
}
.cover-card[hidden] {
  display: none;
}
.cc-art {
  position: relative;
  display: block;
  aspect-ratio: 1;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 10px;
  box-shadow: 0 14px 30px -18px rgb(0 0 0 / 0.9);
  transition: transform 0.2s, box-shadow 0.2s;
}
.cc-art .cover {
  display: block;
  width: 100%;
  height: 100%;
}
.cover-card:hover .cc-art {
  transform: translateY(-4px);
  box-shadow: 0 22px 40px -18px rgb(79 140 255 / 0.55);
}
.cc-play {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px -6px rgb(0 0 0 / 0.6);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
}
.cc-play svg {
  width: 20px;
  height: 20px;
}
.cover-card:hover .cc-play,
.cover-card:focus-visible .cc-play {
  opacity: 1;
  transform: none;
}
.cc-badge {
  position: absolute;
  left: 10px;
  top: 10px;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgb(7 11 19 / 0.6);
  color: #fff;
  backdrop-filter: blur(6px);
}
.cc-title {
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cc-sub {
  color: var(--ink-3);
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cover {
  font-family: var(--font);
}
.cv-t {
  fill: #fff;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.cv-a {
  fill: rgb(255 255 255 / 0.75);
  font-weight: 600;
}
.rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.row {
  display: grid;
  grid-template-columns: 30px 40px minmax(0, 1fr) auto 112px;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 14px;
  transition: background 0.15s;
}
.row:hover {
  background: var(--surface-2);
}
.row-n {
  font: 600 13px var(--mono);
  color: var(--ink-3);
}
.row-play {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.row-play svg {
  width: 17px;
  height: 17px;
}
.row-play:hover,
.riff-play.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.row-main {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--ink);
  text-decoration: none;
}
.row-cover {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  overflow: hidden;
  flex: none;
}
.row-cover .cover {
  display: block;
  width: 100%;
  height: 100%;
}
.row-t {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.row-t b,
.row-t span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.row-t span {
  color: var(--ink-3);
  font-size: 14px;
}
.row-ch {
  display: flex;
  gap: 4px;
}
.row-ch i {
  font: 600 12.5px/1 var(--mono);
  font-style: normal;
  padding: 6px 8px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--ink-2);
}
.row-lvl {
  justify-self: end;
}
@media (max-width: 760px) {
  .row {
    grid-template-columns: 22px 40px minmax(0, 1fr);
    gap: 10px;
    padding: 8px 6px;
  }
  .row-ch,
  .row-lvl {
    display: none;
  }
}
.genres {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 180px), 1fr));
  gap: 12px;
}
.genre {
  position: relative;
  overflow: hidden;
  min-height: 86px;
  padding: 16px;
  border-radius: 16px;
  color: #fff;
  font-weight: 800;
  font-size: 17px;
  text-decoration: none;
  background: linear-gradient(135deg, color-mix(in srgb, var(--g) 85%, #000), color-mix(in srgb, var(--g) 35%, #070b13));
}
.genre::after {
  content: '';
  position: absolute;
  right: -18px;
  bottom: -26px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 10px solid rgb(255 255 255 / 0.14);
}
.genre:hover {
  filter: brightness(1.12);
}

/* ---------- главная ---------- */
.home {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 32px;
  max-width: 1560px;
  margin: 0 auto;
  padding: 18px var(--gutter) 0;
}
@media (max-width: 1240px) {
  .home {
    grid-template-columns: minmax(0, 1fr);
  }
}
.hero {
  position: relative;
  overflow: hidden;
  min-height: 330px;
  display: flex;
  align-items: center;
  padding: clamp(24px, 4vw, 48px);
  border-radius: 28px;
  background: linear-gradient(120deg, #1d3fa8 0%, #2f6bff 45%, #6a5cff 100%);
  box-shadow: 0 30px 60px -30px rgb(47 107 255 / 0.65);
}
.hero-art {
  position: absolute;
  right: -40px;
  top: 50%;
  width: min(460px, 52%);
  aspect-ratio: 1;
  transform: translateY(-50%) rotate(-8deg);
  border-radius: 40px;
  overflow: hidden;
  opacity: 0.9;
  box-shadow: 0 30px 60px -20px rgb(0 0 0 / 0.6);
}
.hero-art .cover {
  width: 100%;
  height: 100%;
  display: block;
}
.hero-txt {
  position: relative;
  max-width: 560px;
}
.hero .eyebrow {
  color: rgb(255 255 255 / 0.8);
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  color: #fff;
  margin-bottom: 14px;
}
.hero-sub {
  color: rgb(255 255 255 / 0.85);
  font-size: 17px;
  max-width: 48ch;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  color: rgb(255 255 255 / 0.85);
  font-weight: 600;
  font-size: 15px;
}
.hero-stats .lvl {
  color: #fff;
}
.hero-stats .lvl i {
  background: rgb(255 255 255 / 0.35);
}
.hero-stats .lvl-3 i {
  background: #fff;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.hero .btn-play {
  background: #fff;
  color: #10204a;
  box-shadow: 0 10px 30px -10px rgb(0 0 0 / 0.5);
}
.hero .btn-play.on {
  background: #10204a;
  color: #fff;
}
@media (max-width: 700px) {
  .hero {
    min-height: 0;
    align-items: flex-end;
    padding-top: 180px;
  }
  .hero-art {
    width: 230px;
    right: -30px;
    top: 110px;
  }
}
.home-side {
  display: grid;
  gap: 18px;
  align-content: start;
}
@media (min-width: 1241px) {
  .home-side {
    position: sticky;
    top: calc(var(--top-h) + 18px);
  }
}
.panel {
  padding: 18px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.panel-k {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.now-card {
  background: linear-gradient(170deg, #142041, #0f1624 70%);
}
.now-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}
.now-cover {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  overflow: hidden;
  flex: none;
}
.now-cover .cover {
  width: 100%;
  height: 100%;
  display: block;
}
.now-t {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.now-t span {
  color: var(--ink-3);
  font-size: 14px;
}
.now-wave {
  display: block;
  width: 100%;
  height: 70px;
  margin: 14px 0 10px;
}
.now-act {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.panel-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.ptab {
  border: 0;
  background: transparent;
  color: var(--ink-3);
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
}
.ptab.on {
  color: var(--ink);
  background: var(--surface-2);
}
.mini-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}
.mini-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px;
  border-radius: 12px;
  color: var(--ink);
  text-decoration: none;
}
.mini-list a:hover {
  background: var(--surface-2);
}
.mini-cover {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  overflow: hidden;
  flex: none;
}
.mini-cover .cover {
  width: 100%;
  height: 100%;
  display: block;
}
.mini-t {
  display: flex;
  flex-direction: column;
  min-width: 0;
  font-size: 15px;
  line-height: 1.3;
}
.mini-t span {
  color: var(--ink-3);
  font-size: 13px;
}
.panel .course {
  gap: 4px;
}
.panel .course-item {
  padding: 8px;
  background: transparent;
  border-color: transparent;
}
.panel .course-item:hover {
  background: var(--surface-2);
}
.panel .ci-b span,
.panel .ci-m {
  display: none;
}
.tools-panel {
  display: grid;
  gap: 6px;
}
.tool {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: 14px;
  color: var(--ink);
  text-decoration: none;
}
.tool:hover {
  background: var(--surface-2);
}
.tool > svg {
  width: 38px;
  height: 38px;
  padding: 8px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-text);
  flex: none;
}
.tool > span {
  display: flex;
  flex-direction: column;
}
.tool > span span {
  font-size: 13px;
  color: var(--ink-3);
}

/* ---------- школа ---------- */
.course {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.course-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}
.course-item:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}
.ci-n {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-3);
  font: 700 14px/1 var(--font);
  color: var(--ink-2);
}
.course-item.done .ci-n {
  background: var(--good);
  color: #062016;
  font-size: 0;
}
.course-item.done .ci-n::after {
  content: '✓';
  font-size: 16px;
}
.ci-b {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.ci-b span {
  color: var(--ink-3);
  font-size: 14px;
}
.ci-m {
  margin-left: auto;
  font-size: 13px;
  color: var(--ink-3);
  white-space: nowrap;
}
.progress {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0 20px;
}
.progress-bar {
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}
.progress-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.4s;
}
.lesson .prose {
  margin-top: 24px;
}
.prose h2 {
  margin-top: 40px;
}
.prose ul,
.prose ol {
  padding-left: 1.3em;
}
.prose li {
  margin: 0.35em 0;
}
.plan li {
  margin: 0.8em 0;
}
.tip {
  margin: 20px 0;
  padding: 14px 18px 14px 50px;
  border-radius: 16px;
  background: linear-gradient(120deg, rgb(79 140 255 / 0.16), rgb(56 214 255 / 0.06));
  border: 1px solid rgb(79 140 255 / 0.25);
  position: relative;
}
.tip::before {
  content: '';
  position: absolute;
  left: 18px;
  top: 17px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 5px rgb(56 214 255 / 0.18);
}
.lesson-done {
  margin: 40px 0 20px;
}
.done-btn.on {
  background: var(--good);
  color: #062016;
}
.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.pager a {
  display: flex;
  flex-direction: column;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  text-decoration: none;
  color: var(--ink);
}
.pager a:hover {
  border-color: var(--accent);
}
.pager a span {
  font-size: 13px;
  color: var(--ink-3);
}
.pager-next {
  text-align: right;
  grid-column: 2;
}
@media (max-width: 560px) {
  .pager {
    grid-template-columns: 1fr;
  }
  .pager-next {
    grid-column: 1;
  }
}
.figure {
  margin: 24px 0;
}
.figure figcaption {
  font-size: 14px;
  color: var(--ink-3);
  margin-top: 8px;
}
.guitar-fig svg {
  width: 100%;
  height: auto;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.g-lbl line {
  stroke: var(--ink-3);
  stroke-width: 1.2;
}
.g-lbl text {
  fill: var(--ink-2);
  font: 600 15px var(--font);
}
.anat {
  display: flex;
  gap: 28px;
  align-items: center;
  flex-wrap: wrap;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.anat-dg {
  width: 150px;
  flex: none;
}
.anat-list {
  margin: 0;
  padding-left: 1.2em;
  flex: 1;
  min-width: 220px;
}
.tab-anat {
  width: 100%;
  height: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.ta-str {
  fill: var(--ink-3);
  font: 600 12px var(--mono);
}
.ta-line {
  stroke: var(--line-strong);
}
.ta-bar {
  stroke: var(--ink-3);
  stroke-width: 1.5;
}
.ta-note {
  fill: var(--accent);
}
.ta-fret {
  fill: #fff;
  font: 700 13px var(--mono);
}

/* ---------- схема аккорда ---------- */
.chord-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 12px 0;
}
.chord {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 112px;
}
.chord-s {
  width: 92px;
}
.chord-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: 10px 8px 6px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.chord-btn:hover {
  border-color: var(--accent);
  background: var(--surface-2);
}
.chord-btn.ring {
  animation: ring 0.6s ease-out;
}
.chord-btn.on {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
@keyframes ring {
  0% {
    box-shadow: 0 0 0 0 rgb(79 140 255 / 0.6);
  }
  100% {
    box-shadow: 0 0 0 14px transparent;
  }
}
.chord-name {
  font: 800 17px/1.2 var(--font);
  margin-bottom: 2px;
}
.chord-cap {
  font: 500 12px/1.2 var(--mono);
  color: var(--ink-3);
  text-align: center;
}
.chord-cap a {
  color: var(--ink-3);
}
.dg {
  width: 100%;
  height: auto;
  display: block;
}
.dg-fret {
  stroke: var(--line-strong);
  stroke-width: 1.2;
}
.dg-str {
  stroke: var(--ink-3);
}
.dg-nut {
  fill: var(--ink);
}
.dg-base {
  fill: var(--ink-3);
  font: 600 10px var(--font);
}
.dg-dot,
.dg-barre {
  fill: var(--ink);
}
.dg-dot.dg-root {
  fill: var(--accent-2);
}
.dg-fg {
  fill: var(--bg);
  font: 700 8.5px var(--font);
}
.dg-open {
  fill: none;
  stroke: var(--ink-2);
  stroke-width: 1.4;
}
.dg-open.dg-root {
  stroke: var(--accent-2);
  stroke-width: 2;
}
.dg-mute {
  stroke: var(--ink-3);
  stroke-width: 1.5;
  stroke-linecap: round;
  fill: none;
}
.dg-txt {
  fill: var(--ink-3);
  font: 700 22px var(--font);
}

/* ---------- страница песни ---------- */
.album {
  display: flex;
  gap: clamp(20px, 3vw, 36px);
  align-items: flex-end;
  padding: clamp(18px, 3vw, 30px);
  margin-top: 6px;
  border-radius: 28px;
  background: linear-gradient(160deg, rgb(79 140 255 / 0.2), rgb(15 22 36 / 0.4) 60%);
  border: 1px solid var(--line);
}
.album-cover {
  width: clamp(150px, 22vw, 240px);
  flex: none;
  aspect-ratio: 1;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 26px 50px -22px rgb(0 0 0 / 0.9);
}
.album-cover .cover {
  width: 100%;
  height: 100%;
  display: block;
}
.album-info {
  min-width: 0;
  flex: 1;
}
.album-info h1 {
  margin-bottom: 8px;
}
.album-by {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
  color: var(--ink-2);
}
.album-by .lvl {
  margin-left: 6px;
}
.album-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.album-actions .btn-ghost svg:last-child:not(:first-child) {
  width: 14px;
  height: 14px;
  opacity: 0.6;
}
.fav-btn.on {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-text);
}
.fav-btn.on svg path {
  fill: currentColor;
}
@media (max-width: 700px) {
  .album {
    flex-direction: column;
    align-items: flex-start;
  }
}
.song-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}
.song-meta div {
  padding: 10px 14px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  min-width: 0;
}
.song-meta dt {
  font-size: 12px;
  color: var(--ink-3);
}
.song-meta dd {
  margin: 0;
  font-weight: 700;
}
.toc {
  position: sticky;
  top: var(--top-h);
  z-index: 6;
  display: flex;
  gap: 6px;
  margin: 22px calc(-1 * var(--gutter)) 0;
  padding: 10px var(--gutter);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  overflow-x: auto;
  scrollbar-width: none;
}
.toc a {
  padding: 7px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink-2);
  font-weight: 700;
  font-size: 14.5px;
  white-space: nowrap;
  background: var(--surface-2);
}
.toc a:hover {
  color: #fff;
  background: var(--accent);
}
.song .block {
  margin-top: 34px;
}
.keybar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
}
.kb-group {
  display: flex;
  align-items: center;
  gap: 6px;
}
.kb-label {
  font-size: 13px;
  color: var(--ink-3);
  font-weight: 600;
}
.kb-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}
.kb-btn:hover {
  border-color: var(--accent);
}
.kb-val {
  min-width: 42px;
  text-align: center;
  font: 700 16px var(--mono);
}
.kb-note {
  margin: 6px 0 0;
  font-size: 15px;
}
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}
.step {
  display: flex;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.step-n {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font: 800 15px var(--font);
}
.step-b {
  flex: 1;
  min-width: 0;
}
.step-b h3 {
  margin-top: 6px;
}
.step-b > p:last-child {
  margin-bottom: 0;
}
@media (max-width: 560px) {
  .step {
    flex-direction: column;
    gap: 6px;
    padding: 16px;
  }
}
.trans {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: grid;
  gap: 8px;
}
.trans li {
  display: flex;
  flex-direction: column;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--surface-2);
}
.trans b {
  font-family: var(--mono);
}
.trans span {
  color: var(--ink-2);
  font-size: 15px;
}
.tips li {
  margin: 0.4em 0;
}

/* лист аккордов */
.sheet {
  display: grid;
  gap: 14px;
}
.sec {
  padding: 16px 18px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.sec h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.rep {
  font: 700 13px var(--mono);
  color: var(--accent-text);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 6px;
}
.sec-play {
  margin-left: auto;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.sec-play:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.sec-play svg {
  width: 16px;
  height: 16px;
}
.bars {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-left: 2px solid var(--line-strong);
}
@media (max-width: 640px) {
  .bars {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.bar {
  display: flex;
  gap: 4px;
  padding: 6px;
  border-right: 2px solid var(--line-strong);
  margin-bottom: 8px;
  min-width: 0;
}
.ch {
  flex: 1 1 0;
  min-width: 0;
  padding: 8px 4px;
  border-radius: 9px;
  font: 700 16px/1 var(--mono);
  text-align: center;
  cursor: pointer;
  color: var(--ink);
  background: var(--surface-2);
  transition: background 0.1s, color 0.1s, transform 0.1s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ch:hover {
  background: var(--surface-3);
}
.bar:has(.ch:nth-child(3)) .ch {
  font-size: 12.5px;
  letter-spacing: -0.03em;
  padding: 9px 2px;
}
.ch.on {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  transform: scale(1.06);
  box-shadow: 0 6px 18px -6px rgb(79 140 255 / 0.8);
}
.sec-note {
  color: var(--ink-3);
  font-size: 14px;
  margin: 4px 0 0;
}
.playalong {
  position: sticky;
  top: calc(var(--top-h) + 54px);
  z-index: 5;
  margin-bottom: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}
.pa-ctl {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
}
.pa-now {
  display: none;
  grid-template-columns: 110px 96px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin-top: 12px;
}
.songsheet.playing .pa-now {
  display: grid;
}
.pa-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 8px;
  border-radius: 14px;
  background: var(--surface-2);
}
.pa-cur {
  outline: 2px solid var(--accent);
}
.pa-next {
  opacity: 0.7;
  transform: scale(0.92);
}
.pa-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.pa-name {
  font: 800 20px/1.2 var(--font);
}
.pa-end {
  padding: 30px 0;
  color: var(--ink-3);
}
.pa-pos {
  font-size: 15px;
}
@media (max-width: 640px) {
  .playalong {
    padding: 12px;
  }
  .pa-now {
    grid-template-columns: 92px 80px minmax(0, 1fr);
    gap: 8px;
  }
  .pa-ctl .ctl-slider input {
    width: 110px;
  }
}

/* ---------- бой и перебор ---------- */
.pattern,
.tabplayer,
.drill,
.tuner,
.metronome,
.capo-demo {
  margin: 16px 0;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.step-b .pattern,
.step-b .tabplayer,
.step-b .drill {
  background: var(--bg);
}
.pattern-head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.pattern-ctl {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.pattern-ctl .ctl-slider input {
  width: 110px;
}
.pattern-ctl .ctl-slider output {
  min-width: 30px;
}
.pattern-steps {
  display: grid;
  grid-template-columns: repeat(var(--n), minmax(0, 1fr));
  gap: 6px;
}
.st {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 8px;
  border-radius: 14px;
  background: var(--surface-2);
  transition: background 0.08s, transform 0.08s;
}
.st-sym {
  font: 800 28px/1 var(--font);
  min-height: 30px;
}
.st-pick .st-sym {
  font: 700 22px/30px var(--mono);
}
.st-cnt {
  font: 600 13px var(--mono);
  color: var(--ink-3);
  margin-top: 4px;
}
.st-X .st-sym {
  color: var(--ink-3);
  font-size: 22px;
  line-height: 30px;
}
.st-rest .st-sym {
  color: var(--line-strong);
}
.st.on {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transform: scale(1.06);
}
.st.on .st-sym,
.st.on .st-cnt {
  color: #fff;
}
.pattern-about {
  margin: 12px 0 0;
  color: var(--ink-2);
  font-size: 15px;
}

/* ---------- проигрыватель табов ---------- */
.tabplayer {
  outline: none;
}
.tabplayer figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 10px;
}
.tabplayer figcaption span {
  color: var(--ink-3);
  font-size: 14px;
}
.tp-ctl {
  display: grid;
  gap: 10px;
  margin-bottom: 8px;
}
.tp-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
}
.tp-steps {
  display: flex;
  gap: 4px;
}
.tp-status {
  font-size: 14px;
}
.tp-range {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tp-range select {
  min-height: 32px;
  padding: 2px 6px;
}
.tp-view {
  overflow-x: auto;
  margin: 0 -4px;
}
.tab-text {
  font: 500 13px/1.45 var(--mono);
  color: var(--ink-2);
  margin: 0;
  white-space: pre;
}
.tabplayer.ready .tab-text {
  display: none;
}
.tp-svg {
  display: block;
  max-width: none;
}
.tp-sname {
  fill: var(--ink-3);
  font: 600 10px var(--mono);
}
.tp-line {
  stroke: var(--line-strong);
  stroke-width: 1;
}
.tp-barline {
  stroke: var(--ink-3);
  stroke-width: 1.4;
}
.tp-barno {
  fill: var(--ink-3);
  font: 600 9.5px var(--font);
}
.tp-chord {
  fill: var(--accent-text);
  font: 700 11.5px var(--font);
}
.tp-cursor {
  fill: var(--accent-soft);
}
.tp-ev {
  cursor: pointer;
}
.tp-nbg {
  fill: var(--surface);
}
.step-b .tp-nbg {
  fill: var(--bg);
}
.tp-n {
  fill: var(--ink);
  font: 700 11.5px var(--mono);
}
.tp-ev:hover .tp-nbg {
  fill: var(--surface-3);
}
.tp-ev.on .tp-nbg {
  fill: var(--accent);
}
.tp-ev.on .tp-n {
  fill: #fff;
}
.tp-roll {
  fill: none;
  stroke: var(--ink-3);
  stroke-width: 1.2;
}
.tp-board {
  margin-top: 10px;
}
.tp-fb {
  width: 100%;
  max-width: 620px;
  height: auto;
  display: block;
}
.fb-wood {
  fill: var(--fb-wood);
}
.fb-fret {
  stroke: var(--fb-fret);
  stroke-width: 2;
}
.fb-nut {
  fill: var(--fb-nut);
}
.fb-str {
  stroke: var(--fb-str);
}
.fb-inlay {
  fill: var(--fb-inlay);
}
.fb-num,
.fb-sn {
  fill: var(--ink-3);
  font: 600 11px var(--mono);
}
.fb-dot {
  fill: var(--accent);
  stroke: #dfe9ff;
  stroke-width: 1.5;
}
.fb-dtxt {
  fill: #fff;
  font: 700 11px var(--mono);
}
.fb-ghost {
  fill: none;
  stroke: var(--accent-2);
  stroke-width: 1.6;
  stroke-dasharray: 3 3;
  opacity: 0.8;
}
.tp-hint {
  font-size: 14px;
  margin: 6px 0 0;
  min-height: 1.5em;
}

/* ---------- упражнение «за минуту» ---------- */
.drill-chords {
  display: flex;
  align-items: center;
  gap: 12px;
}
.drill-arrow {
  font-size: 24px;
  color: var(--ink-3);
}
.drill-ctl {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 12px;
}
.drill-time {
  font: 700 28px var(--mono);
}
.drill-count {
  font: 800 40px/1 var(--font);
  color: var(--accent-2);
  min-width: 56px;
  text-align: center;
}
.drill-best {
  color: var(--ink-3);
  font-size: 14px;
}
.drill-hint {
  margin: 10px 0 0;
  font-size: 14px;
}

/* ---------- тюнер ---------- */
.tuner {
  padding: 20px;
  text-align: center;
}
.tn-note {
  font: 800 64px/1 var(--font);
  min-height: 64px;
}
.tn-note small {
  display: block;
  font: 500 15px var(--font);
  color: var(--ink-3);
  margin-top: 6px;
}
.tn-meter {
  position: relative;
  width: min(340px, 100%);
  height: 150px;
  margin: 10px auto 0;
  overflow: hidden;
}
.tn-scale {
  position: absolute;
  left: 50%;
  bottom: -150px;
  width: 300px;
  height: 300px;
  margin-left: -150px;
  border-radius: 50%;
  background: conic-gradient(from -45deg, var(--surface-3) 0 40deg, var(--good) 40deg 50deg, var(--surface-3) 50deg 90deg, transparent 90deg);
  -webkit-mask: radial-gradient(circle, transparent 118px, #000 119px 140px, transparent 141px);
  mask: radial-gradient(circle, transparent 118px, #000 119px 140px, transparent 141px);
}
.tn-needle {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 3px;
  height: 140px;
  margin-left: -1.5px;
  background: var(--ink);
  border-radius: 3px;
  transform-origin: 50% 100%;
  transition: transform 0.12s ease-out;
}
.tuner.good .tn-needle {
  background: var(--good);
}
.tuner.good .tn-note {
  color: var(--good);
}
.tn-cents {
  min-height: 1.6em;
  margin-top: 10px;
}
.tn-ctl {
  margin: 14px 0;
}
.tn-strings {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  max-width: 460px;
  margin: 0 auto 8px;
}
.tn-str {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  cursor: pointer;
}
.tn-str b {
  font: 800 20px var(--font);
}
.tn-str span {
  font-size: 12px;
  color: var(--ink-3);
}
.tn-str.on,
.tn-str[aria-pressed='true'] {
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- метроном ---------- */
.metronome {
  padding: 18px;
  text-align: center;
}
.mt-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
}
.mt-bpm {
  font: 800 56px/1 var(--font);
  min-width: 120px;
}
.metronome-big .mt-bpm {
  font-size: 84px;
}
.metronome input[type='range'] {
  width: min(420px, 100%);
  accent-color: var(--accent);
  margin: 12px 0;
}
.mt-dots {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 6px 0 16px;
}
.mt-dots i {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--line-strong);
}
.mt-dots i.acc {
  border-color: var(--accent);
}
.mt-dots i.on {
  background: var(--accent-2);
  border-color: var(--accent-2);
  transform: scale(1.15);
}
.mt-ctl {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
}

/* ---------- гриф с нотами ---------- */
.fb-explorer {
  margin: 20px 0;
}
.fbx-wrap {
  overflow-x: auto;
  padding-bottom: 4px;
}
.fbx {
  display: grid;
  grid-template-columns: 40px repeat(calc(var(--frets) - 1), minmax(44px, 1fr));
  min-width: 600px;
}
.fbx:not(.nums) {
  background: var(--fb-wood);
  border-radius: 12px;
  overflow: hidden;
}
.fbx-c {
  position: relative;
  height: 32px;
  border: 0;
  border-right: 2px solid var(--fb-fret);
  background: transparent;
  cursor: pointer;
  padding: 0;
}
.fbx-c.open {
  background: var(--surface-2);
  border-right: 6px solid var(--fb-nut);
}
.fbx-c::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: var(--fb-str);
}
.fbx-c.open::before {
  background: var(--line-strong);
}
.fbx-c.open::after {
  content: attr(data-s);
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
  font: 600 11px var(--mono);
  color: var(--ink-3);
  background: var(--surface-2);
  padding: 0 3px;
}
.fbx-c span {
  position: relative;
  display: none;
  font: 700 11px/22px var(--mono);
  min-width: 22px;
  border-radius: 11px;
  background: var(--ink);
  color: #0a1020;
  padding: 0 4px;
}
.fbx.all .fbx-c span,
.fbx-c:hover span {
  display: inline-block;
}
.fbx-c.on span {
  display: inline-block;
  background: var(--accent);
  color: #fff;
}
.fbx.nums span {
  text-align: center;
  font: 600 12px var(--mono);
  color: var(--ink-3);
  padding-top: 4px;
}
.fbx-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}
.fbx-info {
  margin: 0;
}

/* ---------- каподастр ---------- */
.capo-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.capo-row input {
  flex: 1;
  min-width: 160px;
  accent-color: var(--accent);
}
.capo-grid {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}
.capo-line {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
}
.capo-line span:last-child {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.capo-line i {
  font: 700 16px var(--mono);
  font-style: normal;
  padding: 6px 10px;
  border-radius: 10px;
  background: var(--surface-2);
  min-width: 52px;
  text-align: center;
}
.capo-sound i {
  background: var(--accent-soft);
  color: var(--accent-text);
}

/* ---------- каталог и аккорды ---------- */
.search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  max-width: 620px;
  margin: 18px 0;
}
.search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.search svg {
  width: 20px;
  height: 20px;
  color: var(--ink-3);
  flex: none;
}
.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  outline: none;
  min-height: 42px;
  font-size: 17px;
}
.filters {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}
.found {
  min-height: 1.5em;
  font-size: 14px;
}
.empty {
  padding: 30px 0;
  color: var(--ink-2);
}
.lib-nav {
  position: sticky;
  top: var(--top-h);
  z-index: 4;
  padding: 10px 0;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(8px);
}
.lib-root {
  margin-top: 28px;
}
.lib-root h2 .muted {
  font-size: 16px;
  font-weight: 500;
}
.cp-variants {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 14px;
  margin: 20px 0;
}
.cp-var {
  display: flex;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.cp-var .chord {
  width: 120px;
  flex: none;
}
.cp-how {
  margin: 0;
  padding-left: 1.1em;
  font-size: 14.5px;
  color: var(--ink-2);
}
.cp-how li {
  margin: 0.3em 0;
}

/* ---------- плеер внизу ---------- */
.player {
  position: fixed;
  left: var(--side-w);
  right: 0;
  bottom: var(--tabbar-h);
  z-index: 40;
  height: var(--player-h);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr) minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 0 var(--gutter);
  background: color-mix(in srgb, #0a0f1a 90%, transparent);
  backdrop-filter: saturate(1.3) blur(16px);
  border-top: 1px solid var(--line-strong);
}
.pl-now {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.pl-cover {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  overflow: hidden;
  flex: none;
  background: var(--surface-2);
}
.pl-cover .cover {
  width: 100%;
  height: 100%;
  display: block;
}
.pl-t {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.3;
}
.pl-t b,
.pl-t span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pl-sub {
  color: var(--ink-3);
  font-size: 13.5px;
}
.pl-mid {
  display: grid;
  gap: 8px;
  justify-items: center;
}
.pl-ctl {
  display: flex;
  align-items: center;
  gap: 18px;
}
.pl-btn {
  border: 0;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
}
.pl-btn svg {
  width: 20px;
  height: 20px;
}
.pl-btn:hover {
  color: #fff;
}
.pl-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fff;
  color: #0a1020;
}
.pl-toggle:hover {
  color: #0a1020;
  transform: scale(1.05);
}
.pl-bar {
  width: 100%;
  max-width: 520px;
  height: 4px;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.12);
  overflow: hidden;
}
.pl-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.pl-side {
  display: flex;
  justify-content: flex-end;
}
.pl-open {
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--ink-2);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
}
.pl-open:hover {
  color: #fff;
}

/* ---------- нижние вкладки (телефон) ---------- */
.tabbar {
  display: none;
}

/* ---------- подвал ---------- */
.foot {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 28px 0 10px;
  font-size: 14.5px;
  color: var(--ink-3);
}
.foot-note {
  font-size: 13.5px;
  max-width: 90ch;
}
.foot a {
  color: var(--ink-2);
}

/* ---------- телефон и планшет ---------- */
@media (max-width: 1100px) {
  .tb-tabs {
    display: none;
  }
}
@media (max-width: 900px) {
  :root {
    --side-w: 0px;
    --top-h: 58px;
    --player-h: 64px;
    --tabbar-h: calc(62px + env(safe-area-inset-bottom, 0px));
  }
  .side {
    display: none;
  }
  .tb-hist,
  .tb-cta {
    display: none;
  }
  .logo-m {
    display: flex;
    padding: 0;
    font-size: 15px;
  }
  .logo-m span {
    display: none;
  }
  .tb-search {
    max-width: none;
    height: 40px;
  }
  .tabbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 45;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    height: var(--tabbar-h);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: color-mix(in srgb, #080c14 94%, transparent);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--line-strong);
  }
  .tabbar a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--ink-3);
    text-decoration: none;
    font-size: 11.5px;
    font-weight: 600;
  }
  .tabbar svg {
    width: 22px;
    height: 22px;
  }
  .tabbar a[aria-current] {
    color: var(--accent-2);
  }
  .player {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding: 0 12px;
  }
  .pl-mid {
    display: contents;
  }
  .pl-ctl {
    gap: 4px;
  }
  .pl-prev,
  .pl-next,
  .pl-side {
    display: none;
  }
  .pl-bar {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    max-width: none;
    height: 3px;
    border-radius: 0;
  }
  .pl-cover {
    width: 42px;
    height: 42px;
  }
  .covers {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 140px), 1fr));
    gap: 18px 14px;
  }
}
@media (max-width: 420px) {
  .covers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- вокальная студия на главной ---------- */
.vocal-promo {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding: clamp(20px, 3vw, 32px);
  border-radius: 26px;
  background: radial-gradient(600px 260px at 90% 50%, rgb(56 214 255 / 0.16), transparent 70%), linear-gradient(135deg, #111b33, #0f1624);
  border: 1px solid var(--line-strong);
}
.vocal-promo h2 {
  font-size: clamp(22px, 2.6vw, 30px);
}
.vocal-promo p {
  color: var(--ink-2);
}
.vp-art svg {
  width: 100%;
  height: auto;
  display: block;
}
@media (max-width: 760px) {
  .vocal-promo {
    grid-template-columns: minmax(0, 1fr);
  }
  .vp-art {
    order: -1;
  }
}

/* ---------- инструменты ---------- */
.inst-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.inst-tab {
  border: 0;
  background: transparent;
  color: var(--ink-3);
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
}
.inst-tab:hover {
  color: var(--ink);
}
.inst-tab.on {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}
.chord-piano {
  width: 210px;
}
.chord-ukulele,
.chord-bass {
  width: 100px;
}
.kb {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 4px;
}
.kb-w {
  fill: #e9eef7;
  stroke: #0b1220;
  stroke-width: 1;
}
.kb-b {
  fill: #121a29;
  stroke: #0b1220;
  stroke-width: 1;
}
.kb-w.kb-rh,
.kb-b.kb-rh {
  fill: var(--accent);
}
.kb-w.kb-lh,
.kb-b.kb-lh {
  fill: #8b6cff;
}
.kb-w.kb-next,
.kb-b.kb-next {
  fill: #b9d3ff;
}
.kb-w.kb-on,
.kb-b.kb-on {
  fill: var(--accent-2);
}
.kb-t {
  fill: #fff;
  font: 700 7.5px var(--font);
}
.kb-tb {
  fill: #fff;
  font: 700 6px var(--font);
}
.kb-c {
  fill: #7a879e;
  font: 600 6.5px var(--mono);
}
.pa-card .kb {
  width: 150px;
}
.inst-piano .pa-now {
  grid-template-columns: 170px 150px minmax(0, 1fr);
}
.courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 190px), 1fr));
  gap: 12px;
}
.course-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 132px;
  padding: 18px;
  border-radius: 20px;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(140deg, color-mix(in srgb, var(--g) 80%, #000), color-mix(in srgb, var(--g) 30%, #070b13));
  border: 1px solid color-mix(in srgb, var(--g) 40%, transparent);
  transition: transform 0.2s, box-shadow 0.2s;
}
.course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -20px color-mix(in srgb, var(--g) 80%, transparent);
}
.course-card svg {
  width: 34px;
  height: 34px;
  margin-bottom: auto;
  opacity: 0.95;
}
.course-card b {
  font-size: 18px;
  margin-top: 14px;
}
.course-card span {
  font-size: 14px;
  color: rgb(255 255 255 / 0.78);
}
.inst-hero {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-top: 6px;
  padding: clamp(20px, 3vw, 34px);
  border-radius: 28px;
  background: radial-gradient(500px 260px at 90% 20%, color-mix(in srgb, var(--g) 35%, transparent), transparent 70%), linear-gradient(160deg, color-mix(in srgb, var(--g) 22%, var(--surface)), var(--surface));
  border: 1px solid var(--line);
}
.ih-ic {
  flex: none;
  width: 96px;
  height: 96px;
  border-radius: 28px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, var(--g), color-mix(in srgb, var(--g) 40%, #000));
  color: #fff;
}
.ih-ic svg {
  width: 52px;
  height: 52px;
}
@media (max-width: 640px) {
  .inst-hero {
    flex-direction: column;
    align-items: flex-start;
  }
  .ih-ic {
    width: 72px;
    height: 72px;
  }
}
.lib-root h3 {
  margin: 0 0 4px;
}
.lib-root h3 .muted {
  font-weight: 500;
  font-size: 15px;
}
.prog,
.pmelody {
  margin: 16px 0;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.step-b .prog,
.step-b .pmelody {
  background: var(--bg);
}
.pg-head {
  margin-bottom: 10px;
}
.pg-body {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}
.pg-now .chord {
  margin: 0;
}
.pg-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pg-chip {
  min-width: 56px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  font: 700 17px var(--mono);
  cursor: pointer;
}
.pg-chip.on {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #fff;
}
.pg-ctl,
.pm-ctl {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  margin-top: 12px;
}
.pm-ctl {
  margin: 0 0 12px;
}
.pmelody figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 10px;
}
.pmelody figcaption span {
  color: var(--ink-3);
  font-size: 14px;
}
.pm-kb .kb {
  max-width: 720px;
}
.pm-notes {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 10px 2px 4px;
  scrollbar-width: thin;
}
.pm-n {
  position: relative;
  flex: none;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}
.pm-n i {
  position: absolute;
  top: -9px;
  left: 6px;
  font: 700 10px var(--font);
  font-style: normal;
  color: var(--accent-text);
}
.pm-n.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.kbx-wrap {
  overflow-x: auto;
}
.kbx {
  min-width: 560px;
}
.kbx [data-m] {
  cursor: pointer;
}
.kbx .kb-w:hover {
  fill: #cfe0ff;
}
.kbx .kb-b:hover {
  fill: #2a3a5a;
}