@import url('https://fonts.googleapis.com/css2?family=Metal+Mania&family=Russo+One&family=Rubik:wght@400;600;800&display=swap');

:root {
  --bg: #14101d;
  --bg2: #1d1729;
  --panel: #241c33;
  --panel2: #2d2340;
  --line: #3b2f52;
  --text: #f0eaff;
  --muted: #9c8fc0;
  --pink: #ff3d81;
  --purple: #9b59f6;
  --cyan: #35e0d0;
  --gold: #ffc93c;
  --red: #ff5252;
  --green: #4ade80;
  --font-head: 'Russo One', 'Rubik', sans-serif;
  --font-logo: 'Metal Mania', 'Russo One', cursive;
  --font-body: 'Rubik', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background:
    radial-gradient(1000px 500px at 80% -10%, rgba(155, 89, 246, .22), transparent 60%),
    radial-gradient(800px 400px at 0% 110%, rgba(255, 61, 129, .14), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; width: 100%; max-width: 1060px; margin: 0 auto; padding: 24px 20px 40px; }

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 12px 22px;
  background: rgba(20, 16, 29, .85);
  border-bottom: 2px solid var(--line);
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(8px);
}
.logo { display: flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.logo-icon { font-size: 26px; filter: drop-shadow(0 0 6px var(--pink)); }
.logo-text { font-family: var(--font-logo); font-size: 26px; letter-spacing: 1px; }
.logo-text em { font-style: normal; color: var(--pink); text-shadow: 0 0 14px rgba(255, 61, 129, .7); }

.nav { display: flex; gap: 6px; margin-left: 10px; }
.nav-btn {
  background: none; border: none; color: var(--muted);
  font-family: var(--font-head); font-size: 14px; letter-spacing: .5px;
  padding: 8px 14px; border-radius: 8px; cursor: pointer;
}
.nav-btn:hover { color: var(--text); background: var(--panel); }
.nav-btn.active { color: var(--pink); background: var(--panel); box-shadow: inset 0 -2px 0 var(--pink); }

.top-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }

.mic-btn {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 14px; font-family: var(--font-head); font-size: 12px;
  cursor: pointer; transition: all .2s;
}
.mic-dot { width: 9px; height: 9px; border-radius: 50%; background: #555; transition: all .2s; }
.mic-btn.on { color: var(--cyan); border-color: var(--cyan); }
.mic-btn.on .mic-dot { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: pulse 1.4s infinite; }
.mic-btn.denied { color: var(--red); border-color: var(--red); }
@keyframes pulse { 50% { opacity: .4; } }

.chip {
  display: flex; align-items: center; gap: 5px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 12px; font-family: var(--font-head); font-size: 12.5px; color: var(--gold);
  cursor: default; user-select: none;
}

.lang-btn {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 7px 12px; font-family: var(--font-head); font-size: 12px; cursor: pointer;
}
.lang-btn:hover { border-color: var(--purple); }

/* ---------- hero ---------- */
.hero {
  text-align: center; padding: 38px 16px 26px;
  border: 2px solid var(--line); border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(155, 89, 246, .12), rgba(255, 61, 129, .06)),
    var(--bg2);
  margin-bottom: 30px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 26px, rgba(255, 255, 255, .015) 26px 27px);
  pointer-events: none;
}
.hero h1 {
  font-family: var(--font-logo); font-size: clamp(34px, 6vw, 58px);
  letter-spacing: 2px;
  background: linear-gradient(90deg, var(--pink), var(--purple), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 2px 14px rgba(155, 89, 246, .4));
}
.hero p { color: var(--muted); margin-top: 10px; font-size: 15px; max-width: 560px; margin-inline: auto; }

.hero-band { display: flex; justify-content: center; gap: 22px; margin-top: 18px; align-items: flex-end; }
.hero-band .char { width: 86px; height: 104px; }
.hero-band .char:hover { transform: translateY(-6px) rotate(-4deg); }

/* ---------- animated band characters ---------- */
.char {
  width: 64px; height: 78px;
  --beat: 1s;
  transform-origin: 50% 95%;
  transition: transform .2s;
  animation: idle-bob 3.2s ease-in-out infinite;
  position: relative;
}
.char svg, .char img {
  width: 100%; height: 100%; display: block;
  object-fit: contain; object-position: bottom;
}
.char.rocking { animation: headbang var(--beat) ease-in-out infinite; }
.char.pop svg, .char.pop img { animation: char-pop .35s ease; }
.char.sad svg, .char.sad img { filter: grayscale(.85) brightness(.8); animation: char-shake .4s ease; }
.char .char-name {
  position: absolute; left: 50%; transform: translateX(-50%); bottom: -14px;
  font-family: var(--font-head); font-size: 10px; letter-spacing: 1px; color: var(--muted);
  white-space: nowrap;
}

@keyframes idle-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}
@keyframes headbang {
  0%, 100% { transform: rotate(0) translateY(0); }
  30% { transform: rotate(-9deg) translateY(4px); }
  60% { transform: rotate(5deg) translateY(-2px); }
}
@keyframes char-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.18) rotate(3deg); }
  100% { transform: scale(1); }
}
@keyframes char-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

.band-strip {
  display: flex; justify-content: center; align-items: flex-end; gap: 26px;
  padding: 14px 0 18px;
}
.mascot {
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--font-logo); font-size: 26px; color: #14101d;
  border: 3px solid rgba(255, 255, 255, .18);
  transition: transform .2s;
}
.mascot:hover { transform: translateY(-5px) rotate(-6deg); }
.m-glam  { background: linear-gradient(135deg, #b06cff, #6a2bd9); color: #fff; }
.m-vika  { background: linear-gradient(135deg, #ffd76a, #ff9840); }
.m-dee   { background: linear-gradient(135deg, #ffe9a8, #d9b24a); }
.m-heavy { background: linear-gradient(135deg, #ff7a59, #d9382b); color: #fff; }

/* ---------- levels & song cards ---------- */
.level { margin-bottom: 34px; }
.level-head { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; }
.level-head .mascot { width: 42px; height: 42px; font-size: 20px; cursor: default; }
.level-head h2 { font-family: var(--font-head); font-size: 21px; letter-spacing: .5px; }
.level-desc { color: var(--muted); font-size: 13.5px; margin: 0 0 14px 56px; }

.songs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(235px, 1fr)); gap: 14px; }

.song-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px; cursor: pointer; text-align: left;
  color: var(--text); font-family: var(--font-body);
  transition: transform .15s, border-color .15s, box-shadow .15s;
  position: relative;
  display: flex; gap: 12px; align-items: flex-start;
}
.card-main { flex: 1; min-width: 0; }
.card-face {
  flex: none; width: 54px; height: 60px; border-radius: 10px; overflow: hidden;
  background: var(--panel2); border: 1px solid var(--line);
  display: block;
}
.card-face img, .card-face svg { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-face.big { width: 72px; height: 78px; border-radius: 12px; }

.next-up {
  width: 100%; display: flex; align-items: center; gap: 16px;
  background: linear-gradient(90deg, rgba(155, 89, 246, .18), rgba(255, 61, 129, .10)), var(--panel);
  border: 2px solid var(--purple); border-radius: 16px;
  padding: 14px 18px; margin-bottom: 30px; cursor: pointer;
  color: var(--text); font-family: var(--font-body); text-align: left;
  transition: transform .15s, box-shadow .15s;
}
.next-up:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(155, 89, 246, .3); }
.next-up-text { flex: 1; display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.next-up-label { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--cyan); font-family: var(--font-head); }
.next-up-title { font-family: var(--font-head); font-size: 19px; }
.next-up .btn { pointer-events: none; }
.song-card:hover {
  transform: translateY(-3px);
  border-color: var(--pink);
  box-shadow: 0 8px 24px rgba(255, 61, 129, .18);
}
.card-type { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.card-type.song { color: var(--pink); }
.card-type.exercise { color: var(--cyan); }
.card-title { font-family: var(--font-head); font-size: 15.5px; margin: 6px 0 3px; line-height: 1.3; }
.card-artist { color: var(--muted); font-size: 12.5px; }
.card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.card-bpm { font-size: 12px; color: var(--muted); background: var(--panel2); padding: 3px 8px; border-radius: 6px; }
.card-stars { font-size: 14px; letter-spacing: 2px; color: var(--gold); }
.card-stars .off { color: #4a4060; }

/* ---------- player ---------- */
.player-top { display: flex; align-items: center; gap: 18px; margin-bottom: 14px; flex-wrap: wrap; }
.song-head { flex: 1; min-width: 180px; }
.song-title { font-family: var(--font-head); font-size: 20px; }
.song-sub { color: var(--muted); font-size: 13px; margin-top: 2px; }

.hud { display: flex; gap: 20px; }
.hud-item { text-align: center; min-width: 66px; }
.hud-label { display: block; font-size: 10.5px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.hud-val { font-family: var(--font-head); font-size: 21px; color: var(--gold); }

.stage-wrap {
  position: relative; border: 2px solid var(--line); border-radius: 14px;
  overflow: hidden; background: #191322;
}
#stage { display: block; width: 100%; height: 400px; }

.mode-badge {
  position: absolute; top: 10px; right: 12px;
  font-family: var(--font-head); font-size: 11px; letter-spacing: 1px;
  padding: 5px 12px; border-radius: 999px;
  background: rgba(20, 16, 29, .8); border: 1px solid var(--line); color: var(--muted);
}
.mode-badge.live { color: var(--cyan); border-color: var(--cyan); }

.pitch-readout {
  position: absolute; bottom: 10px; right: 12px;
  font-family: var(--font-head); font-size: 12px; color: var(--cyan);
  background: rgba(20, 16, 29, .82); padding: 6px 12px; border-radius: 10px;
  min-width: 80px; text-align: center; line-height: 1.3;
  border: 1px solid var(--line);
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  transition: border-color .12s, color .12s;
}
.pitch-readout:empty { display: none; }
.pitch-readout .pr-target { color: var(--muted); font-size: 10.5px; letter-spacing: .5px; }
.pitch-readout .pr-you { font-size: 18px; line-height: 1.1; }
.pitch-readout .pr-word { font-size: 10px; letter-spacing: .5px; text-transform: uppercase; }
.pitch-readout.ok { border-color: var(--green); color: var(--green); }
.pitch-readout.ok .pr-you { text-shadow: 0 0 16px rgba(74, 222, 128, .55); }
.pitch-readout.low { border-color: #4aa3ff; color: #7bc0ff; }
.pitch-readout.high { border-color: #ff6b6b; color: #ff9a9a; }

.progress { height: 6px; background: var(--panel); border-radius: 3px; margin: 12px 0; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--purple), var(--pink)); transition: width .2s linear; }

.player-controls { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }

.btn {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 9px 18px; font-family: var(--font-head); font-size: 14px;
  cursor: pointer; transition: all .15s;
}
.btn:hover { border-color: var(--purple); }
.btn.primary {
  background: linear-gradient(135deg, var(--pink), #c92662);
  border-color: transparent;
  box-shadow: 0 4px 18px rgba(255, 61, 129, .35);
}
.btn.primary:hover { filter: brightness(1.12); }
.btn.big { font-size: 16px; padding: 11px 26px; }
.btn.ghost { background: none; border-color: transparent; color: var(--muted); }
.btn.ghost:hover { color: var(--text); }

.ctrl { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 13.5px; }
.ctrl select {
  background: var(--panel); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 8px; font-family: var(--font-body);
}
.ctrl.chk input { accent-color: var(--pink); width: 15px; height: 15px; }

/* ---------- speed slider ---------- */
.slider-ctrl { gap: 10px; }
.slider-ctrl input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 120px; height: 6px; border-radius: 999px;
  background: linear-gradient(90deg, var(--pink), var(--purple));
  outline: none; cursor: pointer;
}
.slider-ctrl input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2px solid var(--pink);
  box-shadow: 0 0 8px rgba(255, 61, 129, .6); cursor: pointer;
}
.slider-ctrl input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2px solid var(--pink); cursor: pointer;
}
.speed-val {
  min-width: 44px; text-align: right; color: var(--text);
  font-family: var(--font-head); font-size: 13px;
}

/* ---------- toggle switches ---------- */
.ctrl.toggle { cursor: pointer; user-select: none; }
.ctrl.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.ctrl.toggle .track {
  position: relative; width: 38px; height: 22px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--line);
  transition: background .18s, border-color .18s; flex: none;
}
.ctrl.toggle .track::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--muted); transition: transform .18s, background .18s;
}
.ctrl.toggle input:checked + .track {
  background: linear-gradient(90deg, var(--pink), var(--purple));
  border-color: transparent;
}
.ctrl.toggle input:checked + .track::after { transform: translateX(16px); background: #fff; }
.ctrl.toggle input:focus-visible + .track { box-shadow: 0 0 0 3px rgba(155, 89, 246, .4); }

/* ---------- 2D / 3D view switch ---------- */
.view-switch {
  display: inline-flex; padding: 3px; gap: 2px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
}
.view-opt {
  border: none; background: none; color: var(--muted); cursor: pointer;
  font-family: var(--font-head); font-size: 12.5px; letter-spacing: .5px;
  padding: 5px 12px; border-radius: 7px; transition: all .15s;
}
.view-opt.active {
  color: #14101d; background: linear-gradient(90deg, var(--pink), var(--purple));
}

/* ---------- chord diagram cards ---------- */
.chord-cards {
  position: absolute; top: 12px; left: 12px; z-index: 4;
  display: flex; gap: 10px; pointer-events: none;
}
.chord-cards[hidden] { display: none; }
.chord-card {
  background: rgba(20, 16, 29, .82); border: 1px solid var(--line);
  border-radius: 12px; padding: 8px 10px 6px; backdrop-filter: blur(3px);
  opacity: .55; transition: opacity .2s, border-color .2s, box-shadow .2s;
}
.chord-card.active {
  opacity: 1; border-color: var(--pink);
  box-shadow: 0 0 18px rgba(255, 61, 129, .35);
}
.chord-card .chord-name {
  font-family: var(--font-head); font-size: 15px; color: var(--text);
  margin-bottom: 4px; text-align: left;
}
.chord-card svg { display: block; }

.tipbox {
  background: var(--panel); border-left: 3px solid var(--gold);
  border-radius: 8px; padding: 11px 14px; font-size: 13.5px; color: var(--muted);
}
.tipbox b { color: var(--gold); }

/* ---------- result modal ---------- */
.modal-back {
  position: fixed; inset: 0; background: rgba(10, 7, 16, .8);
  display: grid; place-items: center; z-index: 50; backdrop-filter: blur(4px);
}
.modal-back[hidden] { display: none; }
.modal {
  background: var(--bg2); border: 2px solid var(--purple); border-radius: 18px;
  padding: 34px 44px; text-align: center; max-width: 420px;
  box-shadow: 0 0 60px rgba(155, 89, 246, .35);
}
.modal h2 { font-family: var(--font-logo); font-size: 34px; letter-spacing: 1px; color: var(--pink); }
.stars { font-size: 44px; letter-spacing: 8px; margin: 14px 0; color: var(--gold); text-shadow: 0 0 22px rgba(255, 201, 60, .55); }
.stars .off { color: #3c3355; text-shadow: none; }
.res-lines { color: var(--muted); font-size: 14.5px; line-height: 1.9; margin-bottom: 20px; }
.res-lines b { color: var(--text); }
.modal-btns { display: flex; gap: 12px; justify-content: center; }

/* ---------- tuner ---------- */
.tuner { max-width: 460px; margin: 30px auto; text-align: center; }
.tuner h2 { font-family: var(--font-head); font-size: 24px; margin-bottom: 8px; }
.tuner-hint { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.tuner-note {
  font-family: var(--font-head); font-size: 84px; line-height: 1;
  margin-bottom: 20px; color: var(--text); transition: color .15s;
}
.tuner-note.good { color: var(--green); text-shadow: 0 0 30px rgba(74, 222, 128, .5); }
.gauge-scale { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; margin-bottom: 4px; }
.gauge-track {
  height: 14px; border-radius: 7px; position: relative;
  background: linear-gradient(90deg, var(--red), var(--gold) 35%, var(--green) 48%, var(--green) 52%, var(--gold) 65%, var(--red));
  opacity: .9;
}
.gauge-needle {
  position: absolute; top: -6px; left: 50%; width: 4px; height: 26px;
  background: #fff; border-radius: 2px; box-shadow: 0 0 8px rgba(255, 255, 255, .8);
  transform: translateX(-50%); transition: left .1s linear;
}
.tuner-freq { margin-top: 16px; color: var(--muted); font-size: 14px; min-height: 20px; }
.tuner-strings { display: flex; justify-content: center; gap: 10px; margin-top: 26px; }
.tuner-strings span {
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  background: var(--panel); border: 1px solid var(--line);
  font-family: var(--font-head); font-size: 15px; color: var(--muted);
}
.tuner-strings span.hit { color: var(--green); border-color: var(--green); box-shadow: 0 0 12px rgba(74, 222, 128, .4); }

/* ---------- footer ---------- */
.footer {
  text-align: center; color: #6b5f8d; font-size: 12px;
  padding: 18px; border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  .hud { gap: 12px; }
  .logo-text { font-size: 20px; }
  #stage { height: 320px; }
  .modal { padding: 26px 22px; margin: 0 14px; }
}