:root {
  --bg: #1a1510;
  --panel: #241d15;
  --line: #3a2f22;
  --text: #f3e9d8;
  --muted: #b8a68a;
  --accent: #e8b04a;
  --accent-ink: #1a1510;
  --danger: #ff8a6b;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background:
    radial-gradient(1200px 600px at 50% -10%, #4a3518 0%, transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: Figtree, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}

header h1 {
  margin: 0;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.sub { margin: 8px 0 8px; color: var(--text); font-size: 16px; }
.note { margin: 0 0 24px; color: var(--muted); font-size: 13px; }

.drop {
  border: 2px dashed var(--line);
  border-radius: 16px;
  background: var(--panel);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  transition: border-color .15s, background .15s;
}
.drop.over { border-color: var(--accent); background: #2e2418; }
.drop-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.drop-inner p { margin: 0; }

.error { color: var(--danger); font-size: 14px; max-width: 320px; }

.editor { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.preview-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  overflow: hidden;
  background:
    repeating-conic-gradient(#2a2219 0% 25%, #221b13 0% 50%) 0 0 / 24px 24px;
}

#preview {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}
#preview.dragging { cursor: grabbing; }

.guide {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, .35);
  pointer-events: none;
}

.hint { margin: 0; font-size: 13px; color: var(--muted); }

.controls {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.group {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.row {
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}
.row span { color: var(--muted); }

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

input[type="text"] {
  width: 100%;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
}
input[type="text"]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.check { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }

.sub-opts { display: flex; flex-direction: column; gap: 10px; padding-left: 28px; }
.customize summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  list-style: none;
}
.customize summary::-webkit-details-marker { display: none; }
.customize summary::before { content: "▸ "; }
.customize[open] summary::before { content: "▾ "; }
.customize[open] summary { margin-bottom: 10px; }
.customize .sub-opts { padding-left: 0; }

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

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .05s, background .15s, border-color .15s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { background: #f2c060; }
.btn.small { align-self: flex-start; padding: 6px 14px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: progress; }

footer { margin-top: 32px; text-align: center; font-size: 13px; color: var(--muted); }

[hidden] { display: none !important; }