:root {
  --bg: #292c31;
  --panel: #181b20;
  --panel-2: #22272e;
  --border: #414852;

  --text: #f4f6f8;
  --muted: #c0c7d0;

  --accent: #70dcff;
  --accent-bright: #8be5ff;

  --active: #b49a22;
  --pulse: #ffe07a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  padding: 24px;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel-2);
  color: var(--text);
}

button {
  height: 40px;
  padding: 0 15px;
  cursor: pointer;
  font-size: 14px;
}

button:hover {
  border-color: var(--accent);
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
  border-color: var(--accent-bright);
}

button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #071016;
}

input,
select {
  height: 40px;
  padding: 0 10px;
}

input[type="number"] {
  width: 82px;
}

input:invalid,
input.invalid {
  border-color: #ff5c5c;
  background: #321f22;
  color: #ffffff;
  box-shadow: 0 0 0 1px rgba(255, 92, 92, 0.25);
}

input:invalid:focus,
input.invalid:focus {
  outline-color: #ff5c5c;
  border-color: #ff5c5c;
  box-shadow: 0 0 0 2px rgba(255, 92, 92, 0.18);
}

select {
  min-width: 105px;
}

.app {
  width: min(1200px, 100%);
  margin: 0 auto;
}.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.app-header-text {
  min-width: 0;
  flex: 1 1 auto;
}

.app-header h1 {
  margin: 0;
  font-size: 28px;
  overflow-wrap: break-word;
}

.app-logo {
  display: block;
  width: auto;
  height: 80px;
  max-width: 30%;
  object-fit: contain;
  flex: 0 0 auto;
  opacity: 0.8;
}

/* Narrow screens */
@media (max-width: 560px) {
  body {
    padding: 12px;
  }

  .panel {
    padding: 14px;
  }

  .app-header {
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 12px;
  }

  .app-header-text {
    width: 100%;
  }

  .app-header h1 {
    font-size: 24px;
  }

  .app-logo {
    height: 52px;
    max-width: 45%;
  }

  .transport-spacer {
    display: none;
  }

  .controls > label {
    flex: 1 1 110px;
  }
}

.app-header a {
  margin: 0;
  color: var(--accent);
  text-decoration: none;
}

.app-header p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.panel {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
}

.transport-spacer {
  flex: 1;
}

.transport-panel > .status {
  margin-top: 12px;
}

.slider-row output {
  width: 45px;
  display: inline-block;
  text-align: left;
  overflow: visible;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.mode-buttons {
  display: flex;
  gap: 6px;
}

.status {
  color: #b8c1cc;
  font-size: 13px;
}

.sequencers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.sequencer {
  min-width: 0;
}

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

.sequencer-header h2 {
  margin: 0;
  color: var(--accent);
  font-size: 18px;
}

.section {
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px solid var(--border);
}

.section:first-of-type {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.section h3 {
  margin: 0 0 13px;
  color: #d1d7df;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.controls > button {
  align-self: end;
}

.checkbox-control input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin: 8px;
  margin-left: 2px;
  padding: 0;
  accent-color: #6ee7b7;
  cursor: pointer;
}

.pattern {
  margin-top: 15px;
  overflow: hidden;
}

.steps {
  display: grid;
  grid-template-columns: repeat(16, 18px);
  grid-auto-rows: 18px;
  gap: 4px;
  overflow: hidden;
  padding-bottom: 2px;
}

.step {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  background: #424951;
}

.step.active {
  background: #737d89;
}

.step.current {
  background: var(--active);
}

.step.active.current {
  background: var(--pulse);
}

@media (max-width: 900px) {
  .sequencers {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  body {
    padding: 12px;
  }

  .panel {
    padding: 14px;
  }

  .transport {
    align-items: stretch;
  }

  .transport-spacer {
    display: none;
  }

  .controls > label {
    flex: 1 1 110px;
  }

  .app-header {
    align-items: flex-start;
  }

  .app-logo {
    height: 80px;
  }
}