:root {
  color-scheme: dark;
  --bg: #0b0f10;
  --panel: #151a1c;
  --panel-2: #1d2426;
  --panel-3: #242d2f;
  --text: #edf5f2;
  --muted: #9aa7a3;
  --line: #2b3638;
  --green: #39d67a;
  --green-2: #19a65d;
  --amber: #f4b95a;
  --red: #ff6868;
  --blue: #57b8ff;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.36);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 15% -10%, rgba(57, 214, 122, 0.16), transparent 30rem),
    linear-gradient(145deg, #080b0c 0%, #101618 48%, #0b0f10 100%);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.app-shell {
  min-height: 100svh;
  padding: max(18px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

.topbar {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin: 0 auto 18px;
  max-width: 1280px;
}

.brand {
  align-items: center;
  display: flex;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  align-items: end;
  background: linear-gradient(160deg, #39d67a, #0f402d);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), var(--shadow);
  display: grid;
  grid-template-columns: repeat(3, 9px);
  gap: 4px;
  height: 52px;
  justify-content: center;
  padding: 9px;
  width: 52px;
}

.brand-mark span {
  background: #07100c;
  border-radius: 999px 999px 2px 2px;
  display: block;
  width: 9px;
}

.brand-mark span:nth-child(1) {
  height: 20px;
}

.brand-mark span:nth-child(2) {
  height: 31px;
}

.brand-mark span:nth-child(3) {
  height: 25px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  letter-spacing: 0;
  line-height: 1.05;
}

.brand p,
.panel-heading span,
.metric-grid span,
.field span,
.readout-label,
.tuning-strip span,
.toggle span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.primary-action,
.secondary-action,
.icon-action,
.segment {
  border: 0;
  cursor: pointer;
}

.primary-action {
  align-items: center;
  background: linear-gradient(180deg, var(--green), var(--green-2));
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(25, 166, 93, 0.26);
  color: #031108;
  display: inline-flex;
  font-weight: 900;
  gap: 10px;
  min-height: 46px;
  padding: 0 16px;
  white-space: nowrap;
}

.primary-action.listening {
  background: linear-gradient(180deg, #ff7777, #c63b3b);
  box-shadow: 0 12px 28px rgba(255, 104, 104, 0.2);
  color: #fff7f7;
}

.mic-dot {
  background: currentColor;
  border-radius: 999px;
  display: inline-block;
  height: 10px;
  width: 10px;
}

.primary-action.listening .mic-dot {
  animation: pulse 1.1s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.8);
  }

  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

.workspace {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) 340px;
  margin: 0 auto;
  max-width: 1280px;
}

.tuner-panel,
.control-panel,
.analysis-panel {
  background: rgba(21, 26, 28, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.tuner-panel {
  min-height: 610px;
  overflow: hidden;
  padding: 18px;
  position: relative;
}

.tuner-panel::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  content: "";
  inset: 0;
  mask-image: linear-gradient(to bottom, #000, transparent 70%);
  pointer-events: none;
  position: absolute;
}

.control-panel,
.analysis-panel {
  padding: 16px;
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.analysis-panel {
  grid-column: 1 / -1;
}

.segmented {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 3px;
  grid-template-columns: repeat(3, 1fr);
  padding: 3px;
  position: relative;
  z-index: 1;
}

.segment {
  background: transparent;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
  height: 38px;
}

.segment.active {
  background: #f0f7f4;
  color: #101615;
}

.pattern-toggle {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 3px;
  grid-template-columns: repeat(2, 1fr);
  padding: 3px;
}

.pattern-option {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 900;
  min-height: 38px;
}

.pattern-option.active {
  background: #f0f7f4;
  color: #101615;
}

.meter-wrap {
  aspect-ratio: 1;
  margin: 18px auto 12px;
  max-width: min(63svh, 620px);
  position: relative;
  width: 100%;
  z-index: 1;
}

#meterCanvas {
  display: block;
  height: 100%;
  width: 100%;
}

.readout {
  align-items: center;
  background: rgba(17, 24, 25, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  box-shadow: 0 0 34px rgba(10, 16, 17, 0.92);
  display: flex;
  flex-direction: column;
  inset: 50% auto auto 50%;
  min-width: 210px;
  padding: 13px 28px 15px;
  position: absolute;
  text-align: center;
  transform: translate(-50%, -48%);
  z-index: 2;
}

.readout strong {
  font-size: clamp(2rem, 6.2vw, 4.25rem);
  letter-spacing: 0;
  line-height: 0.95;
  white-space: nowrap;
}

.readout span:last-child {
  color: #c8d5d1;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 800;
  margin-top: 8px;
}

.tuning-strip {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: 36px 1fr 36px;
  margin: 4px auto 16px;
  max-width: 650px;
  position: relative;
  z-index: 1;
}

.strip-track {
  background: linear-gradient(90deg, var(--red), var(--amber), var(--green), var(--amber), var(--red));
  border-radius: 999px;
  height: 10px;
  position: relative;
}

.sweet-zone {
  background: rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  bottom: -4px;
  left: calc(50% - 7%);
  position: absolute;
  top: -4px;
  width: 14%;
}

.strip-pointer {
  background: #fff;
  border: 3px solid #07100c;
  border-radius: 999px;
  height: 24px;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: left 150ms ease;
  width: 24px;
}

.metric-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  position: relative;
  z-index: 1;
}

.metric-grid div {
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 4px;
  min-height: 70px;
  padding: 12px;
}

.metric-grid strong {
  font-size: clamp(1.05rem, 2.6vw, 1.35rem);
}

.panel-heading {
  align-items: baseline;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.panel-heading h2 {
  font-size: 1rem;
  letter-spacing: 0;
}

.panel-heading.compact {
  border-top: 1px solid var(--line);
  margin-top: 6px;
  padding-top: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

.field.inline-field {
  align-items: center;
  grid-template-columns: 1fr 118px;
}

select,
input[type="number"] {
  appearance: none;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  min-height: 44px;
  padding: 0 12px;
  width: 100%;
}

select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 18px,
    calc(100% - 13px) 18px;
  background-repeat: no-repeat;
  background-size: 5px 5px;
  padding-right: 34px;
}

input[type="range"] {
  accent-color: var(--green);
  width: 100%;
}

.toggle {
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  gap: 10px;
  min-height: 44px;
  padding: 0 12px;
}

.toggle input {
  accent-color: var(--green);
  height: 18px;
  width: 18px;
}

.button-row {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 94px;
}

.secondary-action,
.icon-action {
  border-radius: 8px;
  font-weight: 900;
  min-height: 44px;
}

.secondary-action {
  background: #e9f3ef;
  color: #111817;
}

.icon-action {
  background: var(--panel-3);
  color: var(--text);
}

.scope-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 14px;
}

.scope-grid canvas {
  background: #090d0e;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
  height: 180px;
  width: 100%;
}

.history-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 42px;
  padding-top: 12px;
}

.history-chip {
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #dbe7e3;
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 800;
  gap: 7px;
  min-height: 34px;
  padding: 0 12px;
}

.history-chip.good {
  border-color: rgba(57, 214, 122, 0.5);
}

.history-chip.warn {
  border-color: rgba(244, 185, 90, 0.55);
}

.history-chip.bad {
  border-color: rgba(255, 104, 104, 0.55);
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .control-panel {
    order: 2;
  }

  .analysis-panel {
    order: 3;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-action {
    justify-content: center;
    width: 100%;
  }

  .tuner-panel,
  .control-panel,
  .analysis-panel {
    padding: 12px;
  }

  .tuner-panel {
    min-height: auto;
  }

  .meter-wrap {
    max-width: min(88vw, 440px);
  }

  .metric-grid,
  .scope-grid {
    grid-template-columns: 1fr;
  }

  .metric-grid div {
    min-height: 60px;
  }
}