:root {
  --bg: #0d0a24;
  --panel: rgba(20, 15, 48, 0.82);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f3efff;
  --muted: #a9a3c9;
  --gold: #ffd166;
  --pink: #ff4fd8;
  --cyan: #4cc9f0;
  --green: #3ddc97;
  --red: #ff4d6d;
  --radius: 18px;
  --font-head: 'Unbounded', system-ui, sans-serif;
  --font: 'Manrope', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

#arena { position: fixed; inset: 0; width: 100vw; height: 100vh; display: block; }
#video { position: fixed; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

h1, h2, h3 { font-family: var(--font-head); margin: 0; }
h1 { font-size: clamp(42px, 8vw, 88px); line-height: 0.95; letter-spacing: 0.02em;
  background: linear-gradient(120deg, var(--gold), var(--pink) 60%, var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
h2 { font-size: clamp(24px, 3.4vw, 36px); }
h3 { font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin: 18px 0 8px; }

/* ---------- панели-экраны ---------- */
.panel { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; padding: 16px; z-index: 5; }
body[data-screen="intro"] #p-intro,
body[data-screen="calibrate"] #p-calibrate,
body[data-screen="menu"] #p-menu,
body[data-screen="tutorial"] #p-tutorial,
body[data-screen="countdown"] #p-countdown,
body[data-screen="upgrade"] #p-upgrade,
body[data-screen="results"] #p-results { display: flex; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: clamp(20px, 4vw, 40px);
  width: min(560px, 100%);
  max-height: calc(100vh - 32px);
  overflow: auto;
  backdrop-filter: blur(14px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}
.kicker { color: var(--gold); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 12px; font-weight: 800; }
.lead { color: var(--muted); font-size: 17px; line-height: 1.5; margin: 14px 0 20px; }
.fine { color: var(--muted); font-size: 12.5px; line-height: 1.5; margin: 16px 0 0; }
.status { min-height: 1.4em; margin: 12px 0 0; color: var(--gold); font-weight: 600; }
.status.error { color: var(--red); }

.steps { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 8px; }
.steps li { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.steps b { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: rgba(255, 209, 102, 0.15); color: var(--gold); font-family: var(--font-head); font-size: 13px; }

/* ---------- кнопки ---------- */
.btn {
  --dwell: 0;
  position: relative;
  overflow: hidden;
  font: 800 16px var(--font);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 20px;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}
.btn::after { /* заполнение при удержании курсора-руки */
  content: ''; position: absolute; left: 0; bottom: 0; height: 4px;
  width: calc(var(--dwell) * 100%); background: var(--green);
}
.btn:hover, .btn.hand-hover { border-color: var(--gold); background: rgba(255, 209, 102, 0.12); transform: translateY(-2px); }
.btn.hand-press { transform: scale(0.96); background: rgba(61, 220, 151, 0.25); }
.btn.primary { background: linear-gradient(120deg, #ffb84d, var(--pink)); border: 0; color: #1a0b25; }
.btn.primary.hand-hover, .btn.primary:hover { filter: brightness(1.1); }
.btn.big { font-size: 20px; padding: 18px 26px; width: 100%; }
.btn.small { font-size: 13px; padding: 9px 14px; }
.btn:disabled { opacity: 0.5; cursor: wait; }

.menu-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 20px 0 6px; }
.menu-buttons .big { grid-column: 1 / -1; }
.menu-buttons.row { grid-template-columns: 2fr 1fr; }
.menu-buttons.row .big { grid-column: auto; }
.hint-line { color: var(--muted); font-size: 14px; margin: 10px 0 0; }

/* ---------- калибровка ---------- */
body[data-screen="calibrate"] .card { text-align: center; width: min(460px, 100%); margin-left: auto; margin-right: 2vw; }
.ring {
  --p: 0;
  width: 120px; height: 120px; margin: 0 auto; border-radius: 50%;
  display: grid; place-items: center; font-size: 52px;
  background: conic-gradient(var(--green) calc(var(--p) * 360deg), rgba(255, 255, 255, 0.08) 0);
  position: relative;
}
.ring::before { content: ''; position: absolute; inset: 8px; border-radius: 50%; background: var(--bg); }
.ring span { position: relative; }
.issue { min-height: 3em; margin: 18px 0 0; color: var(--gold); font-weight: 700; font-size: 17px; }

/* ---------- мини-камера ---------- */
#camWrap {
  position: fixed; z-index: 6; right: 16px; bottom: 16px; width: min(280px, 34vw);
  border-radius: 16px; overflow: hidden; border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5); display: none; background: #000;
  transition: width 0.3s, left 0.3s, top 0.3s;
}
#cam { display: block; width: 100%; }
.cam-label { position: absolute; left: 10px; top: 8px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255, 255, 255, 0.75); }
body:not([data-screen="intro"]) #camWrap { display: block; }
body[data-screen="calibrate"] #camWrap { width: min(560px, 52vw); left: 2vw; right: auto; bottom: auto; top: 50%; transform: translateY(-50%); }

/* ---------- HUD ---------- */
#hud, #gestures { display: none; }
body[data-screen="play"] #hud, body[data-screen="tutorial"] #gestures,
body[data-screen="play"] #gestures, body[data-screen="countdown"] #hud { display: flex; }
#hud {
  position: fixed; z-index: 4; top: 14px; left: 16px; right: 16px;
  justify-content: space-between; align-items: flex-start; gap: 16px; pointer-events: none;
}
.bars { display: grid; gap: 6px; width: min(320px, 50vw); }
.bar { position: relative; height: 22px; border-radius: 8px; background: rgba(0, 0, 0, 0.45); overflow: hidden; border: 1px solid var(--line); }
.bar i { position: absolute; inset: 0 auto 0 0; width: 100%; transition: width 0.15s; }
.bar span { position: absolute; left: 10px; top: 2px; font-size: 11px; font-weight: 800; z-index: 1; text-transform: uppercase; letter-spacing: 0.06em; }
.bar.hp i { background: linear-gradient(90deg, #ff4d6d, #ff8e6e); }
.bar.shield i { background: linear-gradient(90deg, #2b8bd8, var(--cyan)); }
.bar.energy i { background: linear-gradient(90deg, #a13df2, var(--pink)); }
.bar.energy.ready { box-shadow: 0 0 16px var(--pink); animation: pulse 0.8s infinite alternate; }
@keyframes pulse { to { border-color: var(--pink); } }
.hud-right { display: flex; gap: 10px; }
.stat { background: rgba(0, 0, 0, 0.45); border: 1px solid var(--line); border-radius: 12px; padding: 6px 14px; text-align: right; }
.stat small { display: block; font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.stat b { font-family: var(--font-head); font-size: 22px; }

#gestures {
  position: fixed; z-index: 4; left: 16px; bottom: 16px; gap: 8px; pointer-events: none;
  max-width: calc(100vw - 32px - min(280px, 34vw) - 16px); flex-wrap: wrap;
}
.gcard {
  --p: 0;
  position: relative; overflow: hidden; width: 118px; padding: 10px 10px 12px;
  background: rgba(10, 8, 30, 0.72); border: 1px solid var(--line); border-radius: 14px;
  display: grid; gap: 2px; transition: border-color 0.15s, transform 0.15s;
}
.gcard em { font-style: normal; font-size: 26px; }
.gcard span { font-weight: 800; font-size: 14px; }
.gcard small { color: var(--muted); font-size: 11px; line-height: 1.2; }
.gcard i { position: absolute; left: 0; bottom: 0; height: 4px; width: calc(var(--p) * 100%); background: var(--gold); transition: width 0.08s; }
.gcard.on { border-color: var(--green); transform: translateY(-3px); }
.gcard.on i { background: var(--green); }
.gcard.fire { animation: fire 0.45s; }
@keyframes fire { 30% { box-shadow: 0 0 24px var(--green); transform: translateY(-6px) scale(1.04); } }

/* ---------- тост тренера ---------- */
.toast {
  position: fixed; z-index: 8; left: 50%; top: 92px; transform: translate(-50%, -20px);
  display: flex; align-items: center; gap: 14px; max-width: min(640px, calc(100vw - 32px));
  padding: 14px 20px; border-radius: 16px; background: rgba(30, 20, 10, 0.92);
  border: 1px solid var(--gold); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.danger { border-color: var(--red); background: rgba(40, 8, 16, 0.94); }
.toast.info { border-color: var(--cyan); background: rgba(8, 24, 40, 0.94); }
.toast.good { border-color: var(--green); background: rgba(8, 36, 24, 0.94); }
.toast-icon { font-size: 30px; }
.toast-text { margin: 0; font-weight: 700; font-size: 17px; line-height: 1.35; }

#banner {
  position: fixed; z-index: 9; left: 50%; top: 50%; transform: translate(-50%, -50%);
  padding: 20px 28px; border-radius: 18px; background: rgba(10, 8, 30, 0.9); border: 1px solid var(--cyan);
  font-weight: 800; font-size: 20px; text-align: center; display: none; max-width: calc(100vw - 32px);
}
#banner.show { display: block; }

#waveTitle {
  position: fixed; z-index: 3; left: 0; right: 0; top: 34%; text-align: center; pointer-events: none;
  opacity: 0; transition: opacity 0.3s;
}
#waveTitle.show { opacity: 1; }
#waveTitle b { display: block; font-family: var(--font-head); font-size: clamp(28px, 5vw, 54px); color: var(--gold); text-shadow: 0 0 30px rgba(255, 209, 102, 0.5); }
#waveTitle span { display: inline-block; margin-top: 10px; font-weight: 700; font-size: 18px; color: var(--text); background: rgba(0, 0, 0, 0.4); padding: 8px 16px; border-radius: 12px; }

/* ---------- обучение ---------- */
#p-tutorial { align-items: flex-start; pointer-events: none; }
.tut {
  pointer-events: auto; margin-top: 16px; width: min(520px, 100%); text-align: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 20px 24px; backdrop-filter: blur(10px);
}
.tut-step { color: var(--gold); font-weight: 800; font-size: 13px; letter-spacing: 0.1em; }
.tut-icon { font-size: 44px; line-height: 1.2; }
.tut h2 { font-size: clamp(20px, 2.6vw, 28px); }
.tut p { color: var(--muted); margin: 8px 0 14px; font-size: 16px; line-height: 1.45; }
.tut-progress { height: 8px; border-radius: 4px; background: rgba(255, 255, 255, 0.08); overflow: hidden; margin-bottom: 12px; }
.tut-progress i { display: block; height: 100%; width: 0; background: var(--green); transition: width 0.1s; }
.tut.done { border-color: var(--green); }
#tutTarget {
  position: fixed; width: 90px; height: 90px; margin: -45px 0 0 -45px; border-radius: 50%;
  border: 3px dashed var(--gold); display: none; animation: spin 4s linear infinite;
}
#tutTarget.show { display: block; }
#tutTarget.hit { border-color: var(--green); border-style: solid; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- отсчёт ---------- */
#countNum { font-family: var(--font-head); font-size: 160px; color: var(--gold); text-shadow: 0 0 60px rgba(255, 209, 102, 0.6); animation: pop 1s infinite; }
@keyframes pop { 0% { transform: scale(1.4); opacity: 0; } 20% { transform: scale(1); opacity: 1; } 100% { opacity: 0.6; } }

/* ---------- итоги ---------- */
.results { width: min(760px, 100%); }
.results { padding: 22px 28px; }
.results h3 { margin: 12px 0 6px; }
.results .menu-buttons { margin-top: 14px; }
body[data-screen="results"] .toast { display: none; }
.big-score { font-family: var(--font-head); font-size: 46px; margin: 4px 0 8px; color: var(--gold); }
.big-score small { display: block; font-family: var(--font); font-size: 15px; color: var(--muted); font-weight: 600; }
.res-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.res-grid div { background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line); border-radius: 12px; padding: 7px 10px; }
.res-grid small { display: block; color: var(--muted); font-size: 12px; }
.res-grid b { font-size: 20px; font-family: var(--font-head); }
.mistakes { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.mistakes li { background: rgba(255, 77, 109, 0.08); border: 1px solid rgba(255, 77, 109, 0.35); border-radius: 12px; padding: 10px 12px; font-weight: 600; font-size: 14.5px; display: flex; gap: 10px; align-items: center; }
.mistakes li b { margin-left: auto; color: var(--red); white-space: nowrap; }
.mistakes li.clean { background: rgba(61, 220, 151, 0.08); border-color: rgba(61, 220, 151, 0.4); }
.res-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.records table { width: 100%; border-collapse: collapse; font-size: 14px; }
.records td { padding: 5px 6px; border-bottom: 1px solid var(--line); }
.records td:last-child { text-align: right; font-weight: 800; font-variant-numeric: tabular-nums; }
.records tr.me td { color: var(--gold); }
#resHistory { display: flex; align-items: flex-end; gap: 4px; height: 70px; }
#resHistory i { flex: 1; max-width: 28px; background: rgba(255, 79, 216, 0.5); border-radius: 4px 4px 0 0; min-height: 3px; }
#resHistory i:last-child { background: var(--gold); }

/* ---------- курсор-рука ---------- */
#pointer {
  position: fixed; z-index: 20; left: 0; top: 0; width: 0; height: 0; pointer-events: none;
}
#pointer i {
  position: absolute; left: -16px; top: -16px; width: 32px; height: 32px; border-radius: 50%;
  border: 3px solid #fff; box-shadow: 0 0 16px rgba(255, 255, 255, 0.6), inset 0 0 0 3px rgba(0, 0, 0, 0.25);
  transition: transform 0.08s, border-color 0.08s, background 0.08s;
}
#pointer i::after { /* заполняется, пока сводишь большой и указательный */
  content: ''; position: absolute; inset: 5px; border-radius: 50%; background: var(--green);
  transform: scale(var(--p, 0)); opacity: 0.85; transition: transform 0.06s;
}
#pointer[data-pose="pinch"] i { transform: scale(0.6); border-color: var(--green); background: rgba(61, 220, 151, 0.4); }
#pointer[data-pose="shoot"] i { border-color: var(--gold); background: rgba(255, 209, 102, 0.35); }
#pointer[data-pose="fist"] i { border-color: var(--cyan); }
#pointer[data-pose="v"] i { border-color: var(--pink); transform: scale(1.3); }

#debug {
  position: fixed; z-index: 30; left: 8px; top: 120px; margin: 0; padding: 8px 10px; font: 12px/1.4 ui-monospace, monospace;
  background: rgba(0, 0, 0, 0.75); color: #9f9; border-radius: 8px; pointer-events: none;
}

/* ---------- телефон ---------- */
@media (max-width: 720px), (orientation: portrait) {
  #camWrap { width: 38vw; right: 10px; bottom: 10px; }
  body[data-screen="calibrate"] #camWrap { width: calc(100vw - 32px); left: 16px; top: 16px; transform: none; }
  body[data-screen="calibrate"] .panel { align-items: flex-end; }
  body[data-screen="calibrate"] .card { margin: 0; }
  .gcard { width: 74px; padding: 6px; }
  .gcard small { display: none; }
  .gcard em { font-size: 20px; }
  .gcard span { font-size: 12px; }
  #gestures { left: 10px; bottom: 10px; max-width: calc(62vw - 30px); }
  .res-grid { grid-template-columns: repeat(2, 1fr); }
  .res-bottom { grid-template-columns: 1fr; }
  .toast { top: 110px; }
  .toast-text { font-size: 15px; }
  #countNum { font-size: 110px; }
}

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

/* ---------- выбор умения ---------- */
body[data-screen="upgrade"] #hud { display: flex; }
.upg { width: min(820px, 100%); text-align: center; }
.upg-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 20px 0 8px; }
.upg-card { display: grid; gap: 8px; justify-items: center; padding: 22px 14px; min-height: 190px; align-content: center; }
.upg-card em { font-style: normal; font-size: 48px; }
.upg-card b { font-family: var(--font-head); font-size: 17px; }
.upg-card small { color: var(--muted); font-size: 13.5px; font-weight: 600; line-height: 1.35; }
.upg-card .lvl { color: var(--gold); font-size: 12px; }
#skills { font-size: 18px; min-height: 22px; letter-spacing: 2px; text-shadow: 0 1px 4px #000; }
@media (max-width: 720px) {
  .upg-cards { grid-template-columns: 1fr; }
  .upg-card { min-height: 0; grid-template-columns: auto 1fr; justify-items: start; text-align: left; }
  .upg-card em { grid-row: span 3; font-size: 36px; }
}