:root {
  color-scheme: light;
  --panel-bg: #15130f;
  --panel-border: #2b241c;
  --panel-highlight: #3f3324;
  --text-main: #f3efe7;
  --text-muted: #c2b7a2;
  --accent: #cf3b2e;
  --wood: #5a3c26;
  --wood-glow: #8d6340;
  --knob-track: #332a20;
  --knob-fill: #d8c9b3;
  --screen: #0d0c0a;
  --screen-glow: #2a251d;
  --keyboard-white: #efe7da;
  --keyboard-black: #2b2520;
  --shadow: rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: radial-gradient(circle at top, #2d2b27, #120f0b 55%, #090806 100%);
  color: var(--text-main);
  font-family: "Space Grotesk", "IBM Plex Sans", "Segoe UI", sans-serif;
}

.app {
  width: min(1220px, 95vw);
  background: linear-gradient(180deg, #201b15, #120f0b);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 30px 60px var(--shadow);
  border: 2px solid var(--panel-border);
  position: relative;
  overflow: hidden;
}

.app::before,
.app::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  background: linear-gradient(180deg, var(--wood), var(--wood-glow), var(--wood));
  box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.4);
}

.app::before {
  left: 0;
}

.app::after {
  right: 0;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-left: 48px;
  padding-right: 48px;
}

.brand {
  font-family: "Playfair Display", "Georgia", serif;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin: 0;
  font-size: 28px;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 11px;
}

.power {
  background: var(--accent);
  color: #fff5ef;
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 20px rgba(207, 59, 46, 0.4);
}

.power[aria-pressed="true"] {
  background: #76c16d;
  box-shadow: 0 10px 20px rgba(118, 193, 109, 0.35);
}

.power:active {
  transform: translateY(2px);
}

.panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  padding: 18px 46px 28px;
  background: linear-gradient(180deg, #1b1712, #100d09);
  border-radius: 18px;
  border: 1px solid var(--panel-highlight);
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.4);
}

.section {
  background: var(--panel-bg);
  border-radius: 16px;
  padding: 16px;
  border: 1px solid var(--panel-border);
  box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.3);
  position: relative;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.section h3 {
  margin: 0 0 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: #f1e5d4;
}

.control {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 14px;
}

.control:last-child {
  margin-bottom: 0;
}

.control label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--text-muted);
}

.control select,
.control input[type="range"],
.control button {
  width: 100%;
}

.control select {
  background: var(--screen);
  color: var(--text-main);
  border: 1px solid var(--panel-highlight);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 14px;
}

.readout {
  font-size: 12px;
  color: var(--text-main);
  background: var(--screen);
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--panel-highlight);
  width: fit-content;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--knob-fill), var(--knob-track));
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #f7e5d4;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #f7e5d4;
  cursor: pointer;
}

.toggle {
  grid-template-columns: auto auto;
  align-items: center;
  justify-content: space-between;
}

.toggle input[type="checkbox"] {
  width: 42px;
  height: 22px;
  appearance: none;
  background: #3a2e23;
  border-radius: 999px;
  position: relative;
  border: 1px solid var(--panel-highlight);
  cursor: pointer;
}

.toggle input[type="checkbox"]::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #f0e6d5;
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.toggle input[type="checkbox"]:checked {
  background: #70b170;
}

.toggle input[type="checkbox"]:checked::after {
  transform: translateX(20px);
}

.osc-bank {
  grid-column: span 2;
}

.osc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.osc-card {
  background: rgba(10, 9, 8, 0.7);
  padding: 10px;
  border-radius: 12px;
  border: 1px solid #2b241c;
}

.button-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 8px;
}

.button-row button {
  background: #2a251d;
  color: var(--text-main);
  border: 1px solid var(--panel-highlight);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 11px;
}

.button-row button:hover {
  background: #3a3226;
}

.wheel-bank {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.wheel input[type="range"] {
  height: 10px;
}

.keyboard {
  padding: 26px 48px 10px;
}

.keys {
  display: grid;
  grid-template-columns: repeat(13, minmax(40px, 1fr));
  gap: 6px;
}

.key {
  border: none;
  border-radius: 8px;
  padding: 16px 0 10px;
  cursor: pointer;
  font-weight: 600;
  text-transform: uppercase;
  box-shadow: inset 0 -4px 6px rgba(0, 0, 0, 0.2);
  transition: transform 0.05s ease, box-shadow 0.05s ease;
}

.key.white {
  background: var(--keyboard-white);
  color: #14110c;
}

.key.black {
  background: var(--keyboard-black);
  color: #f7f2ea;
}

.key.active {
  transform: translateY(3px);
  box-shadow: inset 0 -2px 4px rgba(0, 0, 0, 0.3);
}

.hint {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 1px;
}

@media (max-width: 1100px) {
  .osc-bank {
    grid-column: span 1;
  }
}

@media (max-width: 900px) {
  .top-bar {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 0 8px;
  }

  .app::before,
  .app::after {
    display: none;
  }

  .panel {
    padding: 18px;
  }

  .keyboard {
    padding: 22px 12px 6px;
  }

  .keys {
    grid-template-columns: repeat(7, minmax(36px, 1fr));
  }

  .key.black {
    display: none;
  }

  .wheel-bank {
    grid-template-columns: 1fr;
  }
}