:root {
  --bg: #0e0f13;
  --bg-soft: #16181f;
  --bg-card: #1b1e27;
  --bg-card-hi: #232734;
  --line: #2c3140;
  --text: #e7e9ee;
  --text-dim: #9aa0ad;
  --accent: #6ea8fe;
  --accent-press: #4d8bff;
  --danger: #ff5a52;
  --ok: #30d158;
  --warn: #ffd60a;
  --radius: 12px;
  --shadow: 0 6px 22px rgba(0, 0, 0, 0.35);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 0 clamp(12px, 3vw, 32px) 32px;
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0 16px;
}

.brand h1 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: 0.2px;
}

.tagline {
  margin: 2px 0 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}

.status__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  flex: none;
}

.status--ok .status__dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.status--ok { color: var(--ok); }
.status--pending .status__dot { background: var(--warn); }
.status--pending { color: var(--warn); }
.status--error .status__dot { background: var(--danger); }
.status--error { color: var(--danger); }

/* ---------- Banner ---------- */
.banner {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-left: 4px solid var(--warn);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--text-dim);
}
.banner strong { color: var(--text); }
.banner code {
  background: #000;
  padding: 1px 6px;
  border-radius: 5px;
  color: #cfe0ff;
}

/* ---------- Toolbar ---------- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  padding: 14px 16px;
  margin-bottom: 22px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.toolbar__group {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Push "Save current…" to the far right of the toolbar. */
.toolbar__save {
  margin-left: auto;
  font-weight: 600;
}

.toolbar__label {
  color: var(--text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-right: 2px;
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.04s ease;
}
.btn:hover { background: var(--bg-card-hi); border-color: #3a4150; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn--primary { background: var(--accent); border-color: var(--accent); color: #07142e; }
.btn--primary:hover { background: var(--accent-press); border-color: var(--accent-press); }

.btn--danger { color: var(--danger); border-color: #4a2a2a; }
.btn--danger:hover { background: #2a1818; }

/* Toggle button: accent fill when pressed/active (aria-pressed="true"). */
.btn--toggle[aria-pressed='true'] {
  background: var(--accent);
  border-color: var(--accent);
  color: #07142e;
}
.btn--toggle[aria-pressed='true']:hover {
  background: var(--accent-press);
  border-color: var(--accent-press);
}

/* Saved-scene chips: an "apply" button with an attached × to delete. */
.scene-chips {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: stretch;
}

.chip__apply {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.chip__del {
  appearance: none;
  border: 1px solid var(--line);
  border-left: none;
  border-top-right-radius: 9px;
  border-bottom-right-radius: 9px;
  background: var(--bg-card);
  color: var(--text-dim);
  font: inherit;
  font-size: 1.05rem;
  line-height: 1;
  padding: 0 10px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.chip__del:hover {
  background: #2a1818;
  color: var(--danger);
}

/* ---------- Board: pedalboard (left ~60%) + editor (right ~40%) ---------- */
.board {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 22px;
  flex: 1;
}

/* ---------- Pedalboard ---------- */
.pedalboard {
  flex: 3 1 0;
  min-width: 440px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(16px, 2.4vw, 24px);
  display: grid;
  /* FS1-FS5, a half-width blank, then FUNC in the last slot. */
  grid-template-columns: repeat(5, 1fr) 0.5fr 1fr;
  gap: 14px;
  align-items: start;
  justify-items: center;
  box-shadow: var(--shadow);
}

/* Empty grid cell that reserves the 6th slot so FUNC lands in the 7th. */
.pad-blank { width: 100%; }

.pad {
  appearance: none;
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 4px;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.pad:hover { background: var(--bg-card); }
.pad--selected {
  background: var(--bg-card);
  border-color: var(--accent);
}

.pad__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

/* ---------- Editor ---------- */
.editor {
  flex: 2 1 0;
  min-width: 280px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px clamp(16px, 2.4vw, 24px);
}

.editor__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}
.editor__title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
}
.editor__name { font-size: 1.2rem; font-weight: 700; }
.editor__cc { font-size: 0.8rem; color: var(--text-dim); }

.editor__row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 18px;
}

.lamp {
  --glow: transparent;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #14161d;
  border: 2px solid #2a2f3c;
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.6);
  transition: background 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.lamp--on {
  background: var(--glow);
  border-color: var(--glow);
  box-shadow: 0 0 18px 2px var(--glow), inset 0 0 8px rgba(255, 255, 255, 0.35);
}

.lamp--blink { animation: blink 0.9s steps(1, end) infinite; }

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.12; }
}

.pad__lamp {
  width: 46px;
  height: 46px;
}

.editor__swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.editor__swatches .swatch {
  width: 36px;
  height: 36px;
}

.editor__states { width: 100%; }

.swatch {
  aspect-ratio: 1;
  border-radius: 7px;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  padding: 0;
  outline: none;
  transition: transform 0.06s ease;
}
.swatch:hover { transform: scale(1.08); }
.swatch--active {
  border-color: #fff;
  box-shadow: 0 0 0 2px var(--bg-card), 0 0 0 3px #fff;
}

.states {
  display: inline-flex;
  background: #0f1117;
  border: 1px solid var(--line);
  border-radius: 9px;
  overflow: hidden;
  width: 100%;
}

.state-btn {
  flex: 1;
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 4px;
  cursor: pointer;
  transition: background 0.1s ease, color 0.1s ease;
}
.state-btn + .state-btn { border-left: 1px solid var(--line); }
.state-btn:hover { color: var(--text); }
.state-btn--active { background: var(--accent); color: #07142e; }

/* ---------- Footer ---------- */
.footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--text-dim);
  font-size: 0.8rem;
  line-height: 1.5;
}
.footer code {
  background: #000;
  padding: 1px 6px;
  border-radius: 5px;
  color: #cfe0ff;
  white-space: nowrap;
}

/* ---------- Firmware builder ---------- */
.builder {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.builder > summary {
  cursor: pointer;
  padding: 12px 16px;
  color: var(--text);
  font-weight: 600;
  list-style: none;
}
.builder > summary::-webkit-details-marker { display: none; }
.builder[open] > summary { border-bottom: 1px solid var(--line); }
.builder__body {
  padding: 14px 16px;
  color: var(--text-dim);
  line-height: 1.5;
}
.builder__body ol { margin: 10px 0; padding-left: 20px; }
.builder__body li { margin: 4px 0; }
.builder__body code {
  background: #000;
  padding: 1px 6px;
  border-radius: 5px;
  color: #cfe0ff;
}
.builder__pick { display: inline-block; cursor: pointer; }
.builder__pick input[type='file'] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.builder__msg { margin: 12px 0 2px; min-height: 1.2em; }
.builder__msg--ok { color: var(--ok); }
.builder__msg--error { color: var(--danger); }