:root {
  color-scheme: dark;
  --bg: #07111d;
  --bg-2: #0b1b2d;
  --card: rgba(10, 20, 36, 0.82);
  --card-border: rgba(140, 180, 255, 0.18);
  --text: #eef4ff;
  --muted: #95a9c5;
  --accent: #78f0ff;
  --accent-2: #9b7dff;
  --accent-3: #ffd36d;
  --danger: #ff7f9f;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Inter", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(120, 240, 255, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(155, 125, 255, 0.2), transparent 32%),
    linear-gradient(180deg, var(--bg), #03070d 70%);
  color: var(--text);
}

body {
  padding: 24px;
}

button {
  font: inherit;
}

.app-shell {
  max-width: 1480px;
  margin: 0 auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.hero {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 24px;
  padding: 28px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  font-weight: 700;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: clamp(2.4rem, 4vw, 4.4rem);
  letter-spacing: -0.06em;
}

h2 {
  font-size: 1.35rem;
}

.hero-copy,
.mini-copy {
  color: var(--muted);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-content: flex-start;
  gap: 12px;
}

.button,
.chip,
.segmented-button {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  transition: 160ms ease;
}

.button:hover,
.chip:hover,
.segmented-button:hover,
.knob-shell:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(120, 240, 255, 0.35);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), #4aa8ff);
  color: #04111e;
  font-weight: 800;
}

.button.ghost,
.chip,
.segmented-button {
  border-color: rgba(255, 255, 255, 0.08);
}

.status-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.status-pill,
.mini-card,
.canvas-panel {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
}

.status-pill {
  padding: 14px 16px;
}

.status-pill span,
.mini-label {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 6px;
}

.layout-grid {
  display: grid;
  grid-template-columns: minmax(330px, 430px) minmax(420px, 1fr) minmax(280px, 340px);
  gap: 24px;
  align-items: start;
}

.control-card,
.visual-card,
.preset-card {
  padding: 24px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.segmented-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}

.is-active {
  background: linear-gradient(135deg, rgba(120, 240, 255, 0.24), rgba(155, 125, 255, 0.28));
  border-color: rgba(120, 240, 255, 0.38);
}

.knob-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.knob-card {
  padding: 16px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.knob-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
  margin-bottom: 14px;
}

.knob-name {
  font-weight: 700;
}

.knob-value {
  color: var(--accent);
  font-size: 0.92rem;
}

.knob-shell {
  position: relative;
  display: grid;
  place-items: center;
  width: min(140px, 100%);
  aspect-ratio: 1;
  margin: 0 auto 10px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.12), transparent 34%),
    radial-gradient(circle at center, rgba(120, 240, 255, 0.08), transparent 60%),
    linear-gradient(145deg, rgba(19, 35, 59, 0.92), rgba(4, 8, 15, 0.98));
  cursor: ns-resize;
  outline: none;
  touch-action: none;
}

.knob-shell::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.knob-ring {
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  background: conic-gradient(from 220deg, rgba(255, 255, 255, 0.08), rgba(120, 240, 255, 0.95), rgba(155, 125, 255, 0.9), rgba(255, 255, 255, 0.08));
  -webkit-mask: radial-gradient(circle, transparent 58%, #000 60%);
  mask: radial-gradient(circle, transparent 58%, #000 60%);
  opacity: 0.92;
}

.knob-indicator {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 30%;
  border-radius: 999px;
  background: linear-gradient(180deg, #fff, var(--accent-3));
  transform-origin: center 100%;
  box-shadow: 0 0 16px rgba(255, 211, 109, 0.34);
}

.knob-core {
  width: 52%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.03) 35%, rgba(0, 0, 0, 0.25));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.knob-tip {
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}

.utility-grid {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.mini-card {
  padding: 16px;
}

.timer-actions,
.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.canvas-stack {
  display: grid;
  gap: 16px;
}

.canvas-panel {
  padding: 14px;
}

.canvas-panel.compact {
  padding-bottom: 10px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

canvas {
  width: 100%;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(4, 8, 15, 0.9), rgba(8, 19, 31, 0.95)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.meter-wrap {
  margin-top: 16px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: end;
}

.meter-labels {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.meter-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.meter-track {
  position: relative;
  height: 18px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.meter-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-3), var(--danger));
}

.preset-grid {
  display: grid;
  gap: 14px;
}

.preset-button {
  width: 100%;
  text-align: left;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    rgba(0, 0, 0, 0.2);
  color: var(--text);
  cursor: pointer;
  transition: 160ms ease;
}

.preset-button:hover {
  transform: translateY(-2px);
  border-color: rgba(120, 240, 255, 0.3);
}

.preset-button strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.preset-button span {
  display: block;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 1200px) {
  .layout-grid {
    grid-template-columns: 1fr;
  }

  .preset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  body {
    padding: 14px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .status-row,
  .knob-grid,
  .preset-grid {
    grid-template-columns: 1fr;
  }

  .segmented-group {
    grid-template-columns: 1fr;
  }
}