/* ==========================================================
   MAX GAIN — полная стилизация
   ========================================================== */

:root {
  --bg: #0d0d10;
  --bg-2: #14141a;
  --card: #17171e;
  --text: #f2f2f5;
  --muted: #9a9aa5;
  --border: #24242e;
  --accent: #ff4d2e;
  --accent-2: #ff8a3d;
  --shadow: 0 20px 60px rgba(0,0,0,.4);
  --radius: 14px;
  --transition: .25s ease;
}

[data-theme="light"] {
  --bg: #f7f7fa;
  --bg-2: #ffffff;
  --card: #ffffff;
  --text: #14141a;
  --muted: #6a6a75;
  --border: #e5e5ec;
  --shadow: 0 20px 50px rgba(0,0,0,.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--bg); }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: transparent;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background .3s, color .3s;
}

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; }
h1, h2, h3, h4 { font-weight: 800; line-height: 1.15; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); margin-bottom: 40px; }
.accent { color: var(--accent); }
.muted { color: var(--muted); font-size: .95rem; }

/* ============ HEADER ============ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo {
  font-weight: 900; font-size: 1.15rem; text-decoration: none;
  letter-spacing: -.03em; display: flex; gap: 4px; align-items: center;
}
.logo span { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  text-decoration: none; font-size: .95rem; font-weight: 500;
  padding: 8px 14px; border-radius: 8px;
  color: var(--muted);
  transition: var(--transition);
}
.nav a:hover { color: var(--text); background: var(--bg-2); }
.nav a.is-active { color: var(--text); }
.nav__cta { background: var(--accent) !important; color: #fff !important; font-weight: 600; }
.nav__cta:hover { filter: brightness(1.1); }

.header__actions { display: flex; align-items: center; gap: 8px; }
.theme-toggle {
  background: var(--bg-2); border: 1px solid var(--border);
  width: 40px; height: 40px; border-radius: 10px;
  cursor: pointer; font-size: 1.1rem;
  color: var(--text);
  transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { border-color: var(--accent); }

.burger {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; position: relative;
}
.burger span {
  display: block; width: 22px; height: 2px; background: var(--text);
  margin: 5px auto; transition: var(--transition);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  padding: 30px 0 90px;
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero__eyebrow {
  display: inline-block;
  font-size: .85rem; font-weight: 600;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  padding: 6px 14px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: 100px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 4rem); font-weight: 900; margin-bottom: 24px; }
.hero__sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--muted); max-width: 560px; margin-bottom: 36px;
}
.hero__btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ==========================================================
   🔥 FIRE GAIN KNOB
   ========================================================== */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 440px;
  position: relative;
  --cap-color: 96 165 250;
  --heat: 0;
}
.hero__visual::before {
  content: "";
  position: absolute;
  width: 520px; height: 520px;
  max-width: 100%; max-height: 100%;
  background: radial-gradient(
    circle,
    rgb(var(--cap-color) / calc(.08 + var(--heat) * .25)) 0%,
    rgb(var(--cap-color) / calc(.04 + var(--heat) * .12)) 35%,
    transparent 70%
  );
  filter: blur(28px);
  pointer-events: none;
  animation: fireBreath 3.2s ease-in-out infinite;
  transition: background .3s;
}
@keyframes fireBreath {
  0%, 100% { opacity: .75; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.08); }
}

.knob {
  position: relative;
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}
.knob::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 400'><defs><linearGradient id='f' x1='0' y1='0' x2='0' y2='1'><stop offset='0' stop-color='%23fff5b8'/><stop offset='.45' stop-color='%23ffb347'/><stop offset='1' stop-color='%23ff2a00'/></linearGradient><linearGradient id='s' x1='0' y1='0' x2='0' y2='1'><stop offset='0' stop-color='%23ff9b2a'/><stop offset='1' stop-color='%23ff1a00'/></linearGradient><path id='top' d='M 55 200 A 145 145 0 0 1 345 200' fill='none'/><path id='bot' d='M 25 200 A 175 175 0 0 0 375 200' fill='none'/></defs><circle cx='200' cy='200' r='192' fill='none' stroke='url(%23s)' stroke-width='3' opacity='.9'/><circle cx='200' cy='200' r='184' fill='none' stroke='url(%23s)' stroke-width='1' opacity='.55'/><circle cx='200' cy='200' r='134' fill='none' stroke='url(%23s)' stroke-width='2' opacity='.85'/><circle cx='200' cy='200' r='130' fill='none' stroke='url(%23s)' stroke-width='1' opacity='.45'/><text font-family='Arial Black, Impact, sans-serif' font-weight='900' font-size='26' letter-spacing='1' fill='url(%23f)'><textPath href='%23top' startOffset='50%25' text-anchor='middle'>ROCK MIXING STUDIO</textPath></text><text font-family='Arial Black, Impact, sans-serif' font-weight='900' font-size='40' letter-spacing='2' fill='url(%23f)'><textPath href='%23bot' startOffset='50%25' text-anchor='middle'>100%25GAIN</textPath></text><text x='252' y='292' font-family='Arial Black, Impact, sans-serif' font-weight='900' font-size='17' letter-spacing='1' fill='url(%23f)' text-anchor='middle'>MAX</text><path d='M 26 158 L 58 158 L 40 196 L 66 196 L 22 250 L 42 204 L 16 204 Z' fill='url(%23f)' stroke='%23ff2a00' stroke-width='1.5' stroke-linejoin='round'/><path d='M 374 158 L 342 158 L 360 196 L 334 196 L 378 250 L 358 204 L 384 204 Z' fill='url(%23f)' stroke='%23ff2a00' stroke-width='1.5' stroke-linejoin='round'/></svg>");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  pointer-events: none;
  filter:
    drop-shadow(0 0 6px rgba(255,90,20,.9))
    drop-shadow(0 0 18px rgba(255,50,0,.6))
    drop-shadow(0 0 42px rgba(255,30,0,.35));
  animation: knobFlicker 2.8s ease-in-out infinite;
  z-index: 2;
}
@keyframes knobFlicker {
  0%, 100% {
    filter:
      drop-shadow(0 0 6px rgba(255,90,20,.9))
      drop-shadow(0 0 18px rgba(255,50,0,.6))
      drop-shadow(0 0 42px rgba(255,30,0,.35));
  }
  50% {
    filter:
      drop-shadow(0 0 9px rgba(255,140,40,1))
      drop-shadow(0 0 26px rgba(255,80,0,.85))
      drop-shadow(0 0 60px rgba(255,40,0,.55));
  }
}

.knob__ticks { position: absolute; inset: 0; pointer-events: none; z-index: 3; }
.knob__ticks span {
  position: absolute;
  top: 50%; left: 50%;
  width: 3px; height: 12px;
  background: linear-gradient(180deg, #fff5b8, rgb(var(--cap-color) / 1));
  border-radius: 2px;
  opacity: .55;
  transform:
    translate(-50%, -50%)
    rotate(calc(-150deg + (var(--i) * 30deg)))
    translateY(-122px);
  box-shadow: 0 0 6px rgb(var(--cap-color) / .6);
  transition: opacity .3s, box-shadow .3s, background .3s;
}
.knob__ticks span:nth-child(n+6) { opacity: .7; }
.knob__ticks span:nth-child(n+8) { opacity: .85; }
.knob__ticks span:nth-child(n+10) {
  opacity: 1;
  background: linear-gradient(180deg, #fff5b8, rgb(var(--cap-color) / 1));
  box-shadow: 0 0 10px rgb(var(--cap-color) / 1), 0 0 20px rgb(var(--cap-color) / .7);
}

.knob__body {
  position: relative;
  width: 220px; height: 220px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, #1a0a05 0%, #0a0503 60%, #000 100%);
  box-shadow:
    0 0 0 6px #0a0503,
    0 0 0 8px #2a0f05,
    0 24px 70px rgba(0,0,0,.75),
    0 0 50px rgb(var(--cap-color) / calc(.1 + var(--heat) * .35)),
    inset 0 3px 0 rgba(255,140,60,.15),
    inset 0 -10px 24px rgba(0,0,0,.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  transition: box-shadow .3s;
}

.knob__ring {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: conic-gradient(
    from 210deg,
    #ff2a00 0deg,
    #ffb347 50deg,
    #3a1a0a 120deg,
    #2a0e05 300deg,
    #ffb347 310deg,
    #ff2a00 360deg
  );
  mask: radial-gradient(circle, transparent 72%, #000 74%, #000 100%);
  -webkit-mask: radial-gradient(circle, transparent 72%, #000 74%, #000 100%);
  opacity: .9;
  filter: drop-shadow(0 0 8px rgba(255,80,20,.6));
}

.knob__cap {
  position: absolute;
  width: 155px; height: 155px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 38%, #fff6c2 0%, #ffc04a 12%, #ff7a1a 32%, #c52300 60%, #3a0a00 92%),
    repeating-radial-gradient(circle at 50% 50%, rgba(0,0,0,.15) 0 2px, transparent 2px 5px);
  box-shadow:
    inset 0 0 30px rgb(var(--cap-color) / calc(.15 + var(--heat) * .55)),
    inset 0 0 70px rgb(var(--cap-color) / calc(.1 + var(--heat) * .5)),
    inset 0 6px 12px rgb(var(--cap-color) / calc(.08 + var(--heat) * .2)),
    inset 0 -8px 18px rgba(0,0,0,.55),
    0 0 calc(10px + var(--heat) * 22px) rgb(var(--cap-color) / calc(.1 + var(--heat) * .7)),
    0 0 calc(28px + var(--heat) * 45px) rgb(var(--cap-color) / calc(.05 + var(--heat) * .5)),
    0 6px 18px rgba(0,0,0,.5);
  transform: rotate(-150deg);
  transition: transform .15s ease-out, box-shadow .25s;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  cursor: grab;
  overflow: hidden;
}
.knob__cap:active { cursor: grabbing; }

.knob__cap::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 38%, #e0f7ff 0%, #7dd3fc 12%, #2563eb 32%, #1e3a8a 60%, #0a1220 92%),
    repeating-radial-gradient(circle at 50% 50%, rgba(0,0,0,.2) 0 2px, transparent 2px 5px);
  opacity: calc(1 - var(--heat));
  pointer-events: none;
  transition: opacity .25s;
}

.knob__indicator {
  position: relative;
  width: 5px; height: 30px;
  margin-top: 12px;
  border-radius: 4px;
  background: linear-gradient(180deg, #fff, #fff5b8 40%, rgb(var(--cap-color) / 1) 100%);
  box-shadow:
    0 0 10px #fff,
    0 0 18px rgb(var(--cap-color) / .9),
    0 0 30px rgb(var(--cap-color) / .6);
  transition: box-shadow .25s, background .25s;
  z-index: 2;
}

.knob__glow {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 260px; height: 60px;
  background: radial-gradient(
    ellipse at center,
    rgb(var(--cap-color) / calc(.35 + var(--heat) * .5)) 0%,
    rgb(var(--cap-color) / calc(.1 + var(--heat) * .25)) 45%,
    transparent 75%
  );
  filter: blur(18px);
  opacity: .85;
  pointer-events: none;
  animation: fireBreath 3.2s ease-in-out infinite;
  z-index: 1;
  transition: background .3s;
}

.knob__sparks {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 6;
}
.knob__sparks span {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    #fff5b8 0%,
    rgb(var(--cap-color) / 1) 40%,
    rgb(var(--cap-color) / .8) 75%,
    transparent 100%
  );
  box-shadow:
    0 0 6px rgb(var(--cap-color) / .9),
    0 0 14px rgb(var(--cap-color) / .6);
  opacity: 0;
  animation: sparkRise 2.4s ease-out forwards;
}
@keyframes sparkRise {
  0%   { opacity: 0; transform: translate(0, 0) scale(.4); }
  15%  { opacity: 1; transform: translate(0, -6px) scale(1); }
  70%  { opacity: .85; }
  100% { opacity: 0; transform: translate(var(--sx, 0), -90px) scale(.3); }
}

.knob:hover .knob__body {
  box-shadow:
    0 0 0 6px #0a0503,
    0 0 0 8px #3a1508,
    0 28px 80px rgba(0,0,0,.8),
    0 0 70px rgb(var(--cap-color) / calc(.2 + var(--heat) * .5)),
    inset 0 3px 0 rgba(255,180,80,.2),
    inset 0 -10px 24px rgba(0,0,0,.7);
}
.knob:hover .knob__glow { animation-duration: 1.6s; }

.knob.is-max .knob__indicator {
  box-shadow: 0 0 14px #fff, 0 0 28px rgb(var(--cap-color) / 1), 0 0 50px rgb(var(--cap-color) / .8);
}
.knob.is-max .knob__cap {
  filter: brightness(1.15) saturate(1.15);
}

.knob-hint {
  position: absolute;
  left: 50%;
  bottom: -36px;
  transform: translateX(-50%);
  padding: 10px 20px;
  background: var(--card);
  border: 1px solid var(--accent);
  border-radius: 100px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: .01em;
  z-index: 20;
  box-shadow:
    0 8px 24px color-mix(in srgb, var(--accent) 25%, transparent),
    0 0 0 0 color-mix(in srgb, var(--accent) 40%, transparent);
  animation: hintBounce 2s ease-in-out infinite;
  transition: opacity .35s, visibility .35s;
}
.knob-hint.is-hidden {
  opacity: 0;
  visibility: hidden;
}
@keyframes hintBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(-6px); }
}

/* ============ КНОПКИ ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 30px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; text-decoration: none; font-weight: 600;
  border: none; cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 35%, transparent);
  font-family: inherit;
  font-size: .95rem;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 45%, transparent);
}
.btn--ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
}
.btn--ghost:hover { border-color: var(--accent); }

/* ============ СЕКЦИИ ============ */
section { padding: 80px 0; position: relative; }
.stats { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 50px 0; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.stat { text-align: center; }
.stat strong {
  display: block; font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900; color: var(--accent);
  letter-spacing: -.03em; line-height: 1;
  margin-bottom: 8px;
}
.stat span { color: var(--muted); font-size: .9rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(
    400px circle at var(--x, 50%) var(--y, 0%),
    color-mix(in srgb, var(--accent) 8%, transparent),
    transparent 60%
  );
  opacity: 0; transition: opacity .3s;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}
.card:hover::before { opacity: 1; }

.card__icon { font-size: 2rem; margin-bottom: 14px; display: block; }
.card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .95rem; margin-bottom: 14px; }
.link {
  color: var(--accent); text-decoration: none;
  font-size: .9rem; font-weight: 600;
  display: inline-block; transition: var(--transition);
}
.link:hover { transform: translateX(4px); }

.genre-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.genre-tags span {
  padding: 10px 20px; border-radius: 100px;
  background: var(--card); border: 1px solid var(--border);
  font-size: .9rem; font-weight: 500;
  transition: var(--transition); cursor: default;
}
.genre-tags span:hover {
  border-color: var(--accent); color: var(--accent);
  transform: translateY(-2px);
}

.steps .step {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}
.step strong {
  display: block; font-size: 2rem; font-weight: 900;
  color: var(--accent); margin-bottom: 10px;
  letter-spacing: -.03em;
}
.step h4 { font-size: 1.05rem; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: .9rem; }

.check-list { list-style: none; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 32px; font-size: .98rem; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  border: 2px solid var(--accent);
}
.check-list li::after {
  content: ""; position: absolute; left: 5px; top: 11px;
  width: 6px; height: 3px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.price-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  position: relative; transition: var(--transition);
}
.price-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}
.price-card--featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 8%, var(--card)), var(--card));
}
.price-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.price { font-size: 1.8rem; font-weight: 900; color: var(--accent); margin-bottom: 20px; letter-spacing: -.02em; }
.badge {
  position: absolute; top: -12px; right: 20px;
  background: var(--accent); color: #fff;
  font-size: .7rem; font-weight: 700;
  padding: 5px 12px; border-radius: 100px;
  letter-spacing: .08em; text-transform: uppercase;
}

.cta { text-align: center; }
.cta .container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 60px 24px;
  position: relative;
  overflow: hidden;
}
.cta .container::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 50%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 50%),
    radial-gradient(circle at 80% 50%, color-mix(in srgb, var(--accent-2) 15%, transparent), transparent 50%);
  pointer-events: none;
}
.cta h2 { position: relative; }
.cta p { color: var(--muted); margin-bottom: 28px; position: relative; }
.cta .btn { position: relative; }

/* ============ ПОРТФОЛИО ============ */
.track {
  display: grid;
  grid-template-columns: 60px 1fr 2fr 70px;
  gap: 20px; align-items: center;
  padding: 20px 24px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  transition: var(--transition);
}
.track:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.track.is-playing { border-color: var(--accent); }
.track__play {
  width: 48px; height: 48px; border-radius: 50%;
  border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 40%, transparent);
}
.track__play:hover { transform: scale(1.06); }
.track__info h3 { font-size: 1.05rem; margin-bottom: 4px; }
.track__info p { color: var(--muted); font-size: .85rem; }
.track__progress { height: 4px; background: var(--border); border-radius: 100px; overflow: hidden; position: relative; }
.track__bar {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 100px;
  transition: width .1s linear;
}
.track__time { font-variant-numeric: tabular-nums; font-size: .85rem; color: var(--muted); text-align: right; }

/* ============ КОНТАКТЫ ============ */
.contacts__grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-list { list-style: none; display: grid; gap: 14px; margin-bottom: 24px; }
.contact-list li {
  display: flex; justify-content: space-between;
  padding: 14px 18px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px;
  transition: var(--transition);
}
.contact-list li:hover { border-color: var(--accent); }
.contact-list span { color: var(--muted); font-size: .9rem; }
.contact-list a { color: var(--text); text-decoration: none; font-weight: 500; }
.contact-list a:hover { color: var(--accent); }

.contact-form {
  display: grid; gap: 16px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
}
.contact-form h2 { margin-bottom: 8px; }
.contact-form label { display: grid; gap: 6px; }
.contact-form label span { font-size: .85rem; color: var(--muted); font-weight: 500; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: inherit; font-size: .95rem;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  outline: none;
  transition: var(--transition);
  resize: vertical;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.form__status { font-size: .9rem; color: var(--accent); min-height: 20px; }

/* ============ FOOTER ============ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  font-size: .9rem; color: var(--muted);
}
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer__links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer__links a { color: var(--muted); text-decoration: none; transition: var(--transition); }
.footer__links a:hover { color: var(--accent); }

/* ============ TO TOP ============ */
.to-top {
  position: fixed; bottom: 24px; right: 24px;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--accent); color: #fff;
  border: none; cursor: pointer;
  font-size: 1.2rem; font-weight: 700;
  opacity: 0; visibility: hidden;
  transition: var(--transition);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 40%, transparent);
  z-index: 90;
}
.to-top.is-visible { opacity: 1; visibility: visible; }
.to-top:hover { transform: translateY(-3px); }

/* ============ REVEAL ============ */
.js .reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================
   SPA
   ========================================================== */
.page { display: none; }
.page.is-active { display: block; }

/* ==========================================================
   Nav dropdowns
   ========================================================== */
.nav__dropdown { position: relative; }
.nav__drop-toggle { cursor: pointer; }
.nav__drop-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 220px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: .2s ease;
  z-index: 50;
  box-shadow: var(--shadow);
}
.nav__dropdown:hover .nav__drop-menu,
.nav__dropdown.is-open .nav__drop-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav__drop-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: .9rem;
  color: var(--muted);
}
.nav__drop-menu a:hover { background: var(--bg-2); color: var(--text); }

/* ==========================================================
   Articles
   ========================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  cursor: pointer;
}
.article-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}
.article-card__meta {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-size: .78rem; color: var(--muted);
  margin-bottom: 12px;
  align-items: center;
}
.article-card__tag {
  padding: 3px 10px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  border-radius: 100px;
  font-weight: 600;
}
.article-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.article-card p { color: var(--muted); font-size: .92rem; margin-bottom: 0; }

/* ==========================================================
   Modal
   ========================================================== */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  z-index: 200;
  opacity: 0; visibility: hidden;
  transition: .25s;
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__body {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  max-width: 760px; width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 40px;
  position: relative;
}
.modal__close {
  position: absolute; top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text);
  font-size: 1.05rem;
  transition: var(--transition);
}
.modal__close:hover { border-color: var(--accent); color: var(--accent); }
.modal__body h2 { margin-bottom: 14px; }
.modal__body p { color: var(--muted); margin-bottom: 12px; line-height: 1.7; }
.modal__body ul { margin: 0 0 12px 20px; color: var(--muted); }
.modal__body li { margin-bottom: 6px; }

/* ==========================================================
   Admin
   ========================================================== */
.admin-lock {
  max-width: 420px;
  margin: 0 auto;
  padding: 40px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}
.admin-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.admin-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: grid; gap: 14px;
}
.admin-form label { display: grid; gap: 6px; }
.admin-form label span { font-size: .85rem; color: var(--muted); }
.admin-form input,
.admin-form select,
.admin-form textarea {
  font-family: inherit; font-size: .95rem;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  outline: none;
  transition: var(--transition);
}
.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.admin-list {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  max-height: 640px;
  overflow-y: auto;
}
.admin-list__empty {
  padding: 30px 10px;
  text-align: center;
  color: var(--muted);
  font-size: .9rem;
}
.admin-item {
  display: flex; justify-content: space-between; gap: 12px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.admin-item:last-child { border-bottom: none; }
.admin-item__title { font-weight: 600; font-size: .95rem; margin-bottom: 3px; }
.admin-item__type {
  font-size: .72rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: .08em;
}
.admin-item__actions { display: flex; gap: 6px; flex-shrink: 0; }
.admin-item__actions button {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--text);
  font-size: .78rem;
  transition: var(--transition);
}
.admin-item__actions button:hover { border-color: var(--accent); color: var(--accent); }

/* ==========================================================
   Tap-tempo tool
   ========================================================== */
.tool-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}
.tap-btn {
  width: 180px; height: 180px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: .1em;
  cursor: pointer;
  margin: 24px auto;
  display: flex; align-items: center; justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 40%, transparent);
  transition: transform .08s, box-shadow .2s;
  font-family: inherit;
}
.tap-btn:active { transform: scale(.95); }
.tap-value {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin-top: 12px;
  transition: color .2s;
}

/* ==========================================================
   ФОН: голубоватые всполохи аудиоволны
   ========================================================== */
.bg-waves {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  filter: blur(0.3px);
}
.bg-waves canvas { display: block; width: 100%; height: 100%; opacity: .9; }
.bg-waves::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 15% 100%, rgba(59, 130, 246, .14), transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 100%, rgba(6, 182, 212, .12), transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(99, 102, 241, .08), transparent 65%);
  pointer-events: none;
}
[data-theme="light"] .bg-waves { opacity: .55; }
[data-theme="light"] .bg-waves::before {
  background:
    radial-gradient(ellipse 60% 40% at 15% 100%, rgba(59, 130, 246, .12), transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 100%, rgba(6, 182, 212, .10), transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(99, 102, 241, .06), transparent 65%);
}

/* ============ АДАПТИВ ============ */
@media (max-width: 1100px) {
  .hero__visual .knob { width: 340px; height: 340px; }
  .hero__visual .knob__body { width: 190px; height: 190px; }
  .hero__visual .knob__cap  { width: 135px; height: 135px; }
  .hero__visual .knob__indicator { height: 26px; margin-top: 10px; }
  .hero__visual .knob__ticks span {
    transform: translate(-50%, -50%)
      rotate(calc(-150deg + (var(--i) * 30deg)))
      translateY(-105px);
  }
}

@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__sub { margin-left: auto; margin-right: auto; }
  .hero__btns { justify-content: center; }
  .hero__visual { order: -1; min-height: 340px; }
  .hero__visual::before { width: 380px; height: 380px; }
  .hero__visual .knob { width: 300px; height: 300px; }
  .hero__visual .knob__body { width: 165px; height: 165px; }
  .hero__visual .knob__cap  { width: 118px; height: 118px; }
  .hero__visual .knob__indicator { height: 22px; margin-top: 9px; width: 4px; }
  .hero__visual .knob__ticks span {
    transform: translate(-50%, -50%)
      rotate(calc(-150deg + (var(--i) * 30deg)))
      translateY(-92px);
    height: 10px;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .contacts__grid { grid-template-columns: 1fr; }
  .admin-panel { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav {
    position: fixed; inset: 64px 0 auto 0;
    flex-direction: column; align-items: stretch;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    transform: translateY(-120%);
    transition: transform .3s ease;
    gap: 4px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .nav.is-open { transform: translateY(0); }
  .nav a { padding: 14px; }
  .burger { display: block; }
  .burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .burger.is-open span:nth-child(2) { opacity: 0; }
  .burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav__dropdown { width: 100%; }
  .nav__drop-menu {
    position: static;
    opacity: 1; visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    border: none;
    padding: 0 0 0 16px;
    display: none;
  }
  .nav__dropdown.is-open .nav__drop-menu { display: block; }

  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .track { grid-template-columns: 48px 1fr; gap: 14px; }
  .track__progress, .track__time { grid-column: 1 / -1; }
  .track__time { text-align: left; }

  section { padding: 56px 0; }
  .hero { padding: 16px 0 60px; }

  .hero__visual { min-height: 320px; }
  .hero__visual::before { width: 300px; height: 300px; }
  .hero__visual .knob { width: 230px; height: 230px; }
  .hero__visual .knob__body { width: 128px; height: 128px; }
  .hero__visual .knob__cap  { width: 90px; height: 90px; }
  .hero__visual .knob__indicator { height: 16px; margin-top: 7px; width: 3px; }
  .hero__visual .knob__ticks span {
    transform: translate(-50%, -50%)
      rotate(calc(-150deg + (var(--i) * 30deg)))
      translateY(-72px);
    height: 8px; width: 2px;
  }

  .knob-hint {
    bottom: -38px;
    font-size: .72rem;
    padding: 8px 14px;
    white-space: normal;
    max-width: 220px;
    text-align: center;
    line-height: 1.3;
  }

  .tap-btn { width: 140px; height: 140px; font-size: 1.1rem; }
  .tap-value { font-size: 2.4rem; }
  .modal__body { padding: 28px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
  .bg-waves { display: none; }
  .knob-hint { animation: none; }
}