*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --text:       #1e1e1e;
  --text-mid:   #666666;
  --text-light: #aaaaaa;
  --border:     #e2e2e2;
  --bg:         #ffffff;
  --bg-subtle:  #f8f8f8;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  height: 100%;
}

/* ── Header ──────────────────────────────────────────────────────────────── */

header {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 0.4rem 1rem;
  min-height: 36px;
  border-bottom: 1px solid var(--border);
}

h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text-mid);
  white-space: nowrap;
}

/* ── Controls ────────────────────────────────────────────────────────────── */

.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.field {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.field label {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-light);
}

.field input[type="number"],
.field select {
  font-family: inherit;
  font-size: 0.75rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.15rem 0.4rem;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color 0.15s;
}

.field input[type="number"] { width: 52px; text-align: center; }
.field select                { cursor: pointer; }

.field input[type="number"]:focus,
.field select:focus { border-color: var(--text-mid); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */

button {
  font-family: inherit;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--text-mid);
  background: #f0f0f0;
  border: none;
  border-radius: 999px;
  padding: 0.22rem 0.85rem;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}

button:hover {
  background: #e4e4e4;
  color: var(--text);
}

button.active {
  background: var(--text);
  color: var(--bg);
}

button.active:hover {
  background: #333;
}

/* ── Canvas ──────────────────────────────────────────────────────────────── */

main {
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.canvas-wrap {
  overflow: auto;
  margin-bottom: 0.4rem;
}

canvas { display: block; }

/* ── Footer ──────────────────────────────────────────────────────────────── */

footer {
  position: fixed;
  bottom: 1rem;
  right: 1.25rem;
  font-size: 0.65rem;
  font-style: italic;
  color: var(--text-light);
  letter-spacing: 0.04em;
}

/* ── Stats ───────────────────────────────────────────────────────────────── */

#stats {
  font-size: 0.72rem;
  font-style: italic;
  color: var(--text-light);
  letter-spacing: 0.03em;
  min-height: 1em;
}