@font-face {
  font-family: Bluescreens;
  src: url('assets/TT-Bluescreens-Regular.ttf') format('truetype');
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #090909;
  color: #f8f5ee;
  font-family: Bluescreens,'Arial Narrow',sans-serif;
}

.instrument {
  width: min(1440px,100%);
  margin: auto;
  padding: 30px 4vw 45px;
}

.top {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 25px;
  margin-bottom: 22px;
}

.eyebrow,.intro,.description,.hint,.transport p,.number,.visual-info {
  font-family: Arial,sans-serif;
  font-size: 10px;
  letter-spacing: .1em;
}

.eyebrow,.number,.transport p,.hint {
  color: #a9a29e;
}

h1 {
  font-size: clamp(52px,6vw,90px);
  line-height: .85;
  font-weight: 400;
  margin: 12px 0 0;
}

.intro {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .01em;
  margin: 0;
  color: #d7ceca;
}

.visual {
  height: clamp(260px,36vw,500px);
  position: relative;
  overflow: hidden;
  background: #f19a00;
  isolation: isolate;
}

.gradient {
  position: absolute;
  inset: -35%;
  filter: blur(46px) hue-rotate(var(--hue,0deg)) brightness(var(--brightness,1));
  animation-play-state: paused!important;
}

.gradient-a {
  background: radial-gradient(ellipse at 20% 24%,#fff9e8 0 12%,transparent 31%),radial-gradient(ellipse at 74% 17%,#fff8ed 0 10%,transparent 30%),radial-gradient(ellipse at 62% 76%,#25001f 0 5%,#a30022 17%,transparent 35%),radial-gradient(ellipse at 88% 52%,#ff3916 0 12%,transparent 36%),#ffaf00;
  animation: drift 8s ease-in-out infinite alternate;
}

.gradient-b {
  background: radial-gradient(ellipse at 70% 35%,#ff6b73aa 0 8%,transparent 30%),radial-gradient(ellipse at 30% 75%,#ff9a8399 0 13%,transparent 32%),radial-gradient(ellipse at 80% 85%,#801438aa 0 9%,transparent 28%);
  mix-blend-mode: screen;
  animation: drift2 6s ease-in-out infinite alternate;
  opacity: var(--blush,.6);
}

.visual.running .gradient {
  animation-play-state: running!important;
}

.visual.running .gradient-a {
  animation-duration: var(--speed,8s);
}

.visual.running .gradient-b {
  animation-duration: var(--speed2,6s);
}

@keyframes drift {
  0% {
    transform: translate(-12%,-8%) scale(1) rotate(-5deg);
  }

  50% {
    transform: translate(10%,4%) scale(1.1) rotate(7deg);
  }

  100% {
    transform: translate(-5%,12%) scale(1.03) rotate(-5deg);
  }

}

@keyframes drift2 {
  0% {
    transform: translate(12%,-10%) rotate(0);
  }

  100% {
    transform: translate(-15%,12%) rotate(18deg);
  }

}

.visual-info {
  position: absolute;
  inset: auto 18px 15px;
  display: flex;
  justify-content: space-between;
  color: #fff;
  text-shadow: 0 1px 6px #390000;
  z-index: 2;
}

.console {
  padding-top: 24px;
}

.transport {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-bottom: 27px;
}

.start {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 1px solid #dc604c;
  background: conic-gradient(#360000,#ac2014,#290000,#9f1815,#390000);
  box-shadow: inset 0 0 16px #f55b4833;
  cursor: pointer;
  color: white;
  font-size: 17px;
}

.start[aria-pressed=true] {
  box-shadow: 0 0 25px #ed4d3955,inset 0 0 16px #f55b4833;
}

.transport-title {
  font-size: 31px;
  line-height: 1;
}

.transport p {
  margin: 6px 0;
}

.master {
  margin-left: auto;
  width: min(235px,30%);
  font-size: 24px;
  display: grid;
  gap: 8px;
}

.modules {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 12px;
}

.module {
  border: 1px solid #5c4b45;
  background: #12100f;
  padding: 20px;
  min-width: 0;
}

.module.active {
  border-color: #d85b3a;
  background: #1d1412;
}

.module-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.number {
  font-size: 9px;
}

h2 {
  font-size: clamp(31px,3vw,45px);
  font-weight: 400;
  line-height: 1;
  margin: 8px 0 0;
}

.symbol {
  width: 45px;
  height: 45px;
  display: grid;
  place-items: center;
  border: 1px solid #9f7162;
  border-radius: 50%;
  font-family: Arial,sans-serif;
  font-size: 26px;
  color: #f38b66;
}

.description {
  letter-spacing: 0;
  color: #bfb3ac;
  font-size: 11px;
  margin: 14px 0 22px;
  min-height: 14px;
}

.controls {
  display: grid;
  gap: 15px;
}

.controls label {
  font-size: 22px;
  display: grid;
  gap: 6px;
  line-height: 1;
}

input[type=range] {
  width: 100%;
  accent-color: #f6ece2;
  cursor: pointer;
  height: 18px;
  margin: 0;
}

.actions {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}

.actions button {
  font: inherit;
  font-size: 22px;
  line-height: 1;
  min-height: 38px;
  border: 1px solid #d4c8c0;
  color: #f7efe8;
  background: transparent;
  cursor: pointer;
  padding: 8px 12px;
}

.toggle {
  flex: 1;
}

.actions button[aria-pressed=true] {
  background: #f6e9de;
  color: #170d0b;
}

.actions .solo[aria-pressed=true] {
  background: #ec815d;
  border-color: #ec815d;
}

.hint {
  margin: 18px 0 0;
}

button:focus-visible,input:focus-visible {
  outline: 2px solid #ffb982;
  outline-offset: 3px;
}

@media(max-width:850px) {
  .modules {
    grid-template-columns: repeat(2,1fr);
  }

  .intro {
    max-width: 240px;
  }

}

@media(max-width:500px) {
  .instrument {
    padding: 22px 16px;
  }

  .top {
    display: block;
  }

  .intro {
    margin-top: 14px;
  }

  .modules {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .module {
    padding: 13px;
  }

  .description {
    min-height: 27px;
  }

  .actions {
    flex-direction: column;
  }

  .master {
    width: 35%;
  }

  .start {
    width: 60px;
    height: 60px;
  }

  .transport-title {
    font-size: 25px;
  }

  h2 {
    font-size: 30px;
  }

  .visual {
    height: 290px;
  }

}

.status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.module-head {
  margin-bottom: 24px;
}

.start[aria-pressed=true] {
  background: conic-gradient(#704320,#f69c37,#702112,#e86b25,#704320);
  border-color: #ffa969;
  box-shadow: 0 0 25px #ed7b3955,inset 0 0 16px #f9b96155;
}

.top h1 {
  margin: 0;
}

.symbol {
  font-family: Bluescreens, sans-serif;
}

@font-face {
  font-family: BluescreensCondensed;
  src: url('assets/TT-Bluescreens-Condensed.ttf') format('truetype');
}

.top h1 {
  font-family: BluescreensCondensed,'Arial Narrow',sans-serif;
}

.module {
  border-color: #77716e;
}

.module.active {
  border-color: #a9a09a;
  background: #161212;
}

.symbol {
  border-color: #aaa29c;
  color: #eee8e2;
}

.actions .solo[aria-pressed=true] {
  background: #ece3db;
  border-color: #ece3db;
  color: #170d0b;
}

button:focus-visible,input:focus-visible {
  outline-color: #eee5de;
}

.start {
  background: repeating-radial-gradient(circle,transparent 0 53%,#d84b3c44 54% 55%,transparent 56% 64%,#ffaea544 65% 66%,transparent 67%),conic-gradient(from 10deg,#300000,#9f1115,#250000,#a00c12,#390000,#a52424,#300000);
  border-color: #a33831;
  box-shadow: inset 0 0 18px #e649393d;
}

.start[aria-pressed=true] {
  background: repeating-radial-gradient(circle,transparent 0 53%,#e56c5d55 54% 55%,transparent 56% 64%,#ffd1c655 65% 66%,transparent 67%),conic-gradient(from 10deg,#500507,#c02d2c,#3c0004,#c72a25,#5a0005,#c54940,#500507);
  border-color: #d4635b;
  box-shadow: 0 0 22px #b6181d55,inset 0 0 18px #f56c5c44;
}

input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 26px;
}

input[type=range]::-webkit-slider-runnable-track {
  height: 2px;
  background: #eee7df;
}

input[type=range]::-moz-range-track {
  height: 2px;
  background: #eee7df;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px;
  height: 26px;
  margin-top: -12px;
  border: 0;
  background: center/contain no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cg fill='none' stroke='%23f8f5ee' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='16' cy='16' r='6' fill='%23f8f5ee'/%3E%3Cpath d='M16 2v4M16 26v4M2 16h4M26 16h4M6 6l3 3M23 23l3 3M26 6l-3 3M9 23l-3 3'/%3E%3C/g%3E%3C/svg%3E");
}

input[type=range]::-moz-range-thumb {
  width: 26px;
  height: 26px;
  border: 0;
  border-radius: 0;
  background: center/contain no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cg fill='none' stroke='%23f8f5ee' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='16' cy='16' r='6' fill='%23f8f5ee'/%3E%3Cpath d='M16 2v4M16 26v4M2 16h4M26 16h4M6 6l3 3M23 23l3 3M26 6l-3 3M9 23l-3 3'/%3E%3C/g%3E%3C/svg%3E");
}

/* Brief warm light response to each module interaction. */
.visual::after {
  content: "";
  position: absolute;
  inset: -12%;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at var(--reaction-x,50%) var(--reaction-y,50%),rgba(255,246,220,.9) 0%,rgba(255,105,77,.62) 18%,rgba(193,28,48,.3) 35%,transparent 62%);
  mix-blend-mode: screen;
  opacity: 0;
  transform: scale(.92);
  transition: opacity 1.1s ease-out,transform 1.1s ease-out;
}

.visual.running.reacting::after {
  opacity: var(--reaction-strength,.55);
  transform: scale(1.13);
  transition: opacity .16s ease-out,transform .35s ease-out;
}