:root, :host {
  --bg: #f4f4f8;
  --panel: #ffffff;
  --ink: #1f2233;
  --muted: #6b6f80;
  --accent: #6d5dfc;
  --accent-2: #ff7eb6;
  --line: #e6e6ee;
  --shadow: 0 6px 24px rgba(40, 40, 80, .10);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

/* ---------- Topbar ---------- */
.topbar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark {
  font-size: 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-name { letter-spacing: .2px; }
.icon-btn {
  border: 1px solid var(--line);
  background: #fff;
  width: 40px; height: 40px;
  border-radius: 10px;
  font-size: 18px;
  cursor: pointer;
  display: none;
}

/* ---------- Layout (fließt mit dem Seiteninhalt, kein eigenes Scrollen) ---------- */
.layout {
  display: grid;
  grid-template-columns: 290px 1fr 240px;   /* links · Stage · rechts */
}
.panel {
  background: var(--panel);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.group h2 {
  margin: 0 0 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

/* ---------- Controls ---------- */
.ctrl { display: block; margin-bottom: 9px; }
.ctrl:last-child { margin-bottom: 0; }
.ctrl-label {
  display: flex; justify-content: space-between;
  font-size: 14px; margin-bottom: 4px;
}
.ctrl-label b { color: var(--accent); font-variant-numeric: tabular-nums; }

input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; border-radius: 6px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent);
  box-shadow: 0 2px 6px rgba(0,0,0,.2); cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent); cursor: pointer;
}

/* Stil-Auswahl */
.seg { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.seg-btn {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  padding: 8px 8px; border-radius: 10px; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all .12s ease;
}
.seg-btn:active { transform: scale(.97); }
.seg-btn.is-active {
  background: var(--accent); color: #fff; border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(109,93,252,.3);
}

/* Ring-Editor (Baukasten) */
.ring-row {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid var(--line);
}
.ring-row:last-child { border-bottom: none; }
.ring-num {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700;
}
.ring-row select {
  width: 100%; min-width: 0; padding: 5px 8px;
  border: 1px solid var(--line); border-radius: 8px;
  font-size: 13px; background: #fff; color: var(--ink);
}
.ring-tools { display: flex; align-items: center; gap: 8px; }
.ring-tools .mini {
  border: 1px solid var(--line); background: #fff;
  width: 28px; height: 28px; border-radius: 8px;
  font-size: 13px; cursor: pointer; padding: 0;
}
.ring-tools .mini.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.ring-tools input[type="range"] { width: 64px; }

.seed-row { display: flex; gap: 8px; margin-bottom: 10px; }
.seed-row input {
  flex: 1; min-width: 0;
  border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px; font-size: 15px; color: var(--ink);
}

/* Kein Doppeltipp-Zoom auf Bedienelementen (iOS) + kein 300ms-Klickverzug.
   Pinch-Zoom der Seite bleibt erhalten. */
button, .btn, .seg-btn, .mini, .embed-link, .icon-btn,
input[type="range"], input[type="checkbox"], select, label.switch {
  touch-action: manipulation;
}

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--line);
  background: #fff; color: var(--ink);
  padding: 11px 14px; border-radius: 10px;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: transform .05s ease, background .15s ease;
}
.btn:active { transform: scale(.97); }
.btn-block, .btn-row .btn { width: 100%; }
.btn-block { margin-top: 8px; }
.btn-row { display: flex; gap: 8px; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-accent { background: var(--accent-2); color: #fff; border-color: var(--accent-2); }

/* Einbetten-Link (unten rechts) + Modal */
.embed-link {
  margin-top: auto;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border: none; border-radius: 10px;
  padding: 11px 12px; font-size: 13px; font-weight: 700; cursor: pointer;
  box-shadow: 0 4px 14px rgba(109,93,252,.30);
  transition: transform .08s ease, box-shadow .15s ease, filter .15s ease;
}
.embed-link:hover { filter: brightness(1.06); box-shadow: 0 6px 18px rgba(109,93,252,.42); }
.embed-link:active { transform: scale(.98); }
.embed-modal {
  position: fixed; inset: 0; background: rgba(20,20,40,.45);
  display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 9999;
}
.embed-modal[hidden] { display: none; }
.embed-card {
  background: #fff; border-radius: 14px; width: 100%; max-width: 560px;
  max-height: 85vh; overflow: auto; padding: 20px; box-shadow: var(--shadow);
}
.embed-card h3 { margin: 0 0 6px; font-size: 18px; }
.embed-card pre {
  background: #1f2233; color: #e8e8f0; padding: 12px; border-radius: 8px;
  overflow: auto; font-size: 12px; margin: 8px 0 0; white-space: pre-wrap; word-break: break-all;
}
.embed-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.embed-actions .btn { text-decoration: none; }
.embed-note { margin: 14px 0 0; font-size: 12px; line-height: 1.5; color: var(--muted); }
.embed-note-i { color: var(--accent); font-weight: 700; }
.embed-note a { color: var(--accent); }

.switch { display: flex; align-items: center; gap: 10px; font-size: 14px; cursor: pointer; }
.switch input { width: 18px; height: 18px; accent-color: var(--accent); }
.hint { font-size: 12px; color: var(--muted); line-height: 1.5; margin: 10px 0 0; }

/* ---------- Stage ---------- */
.stage {
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.canvas-wrap {
  aspect-ratio: 1 / 1;
  width: min(100%, 560px);            /* Fallback (Mobile / ohne cq-Units) */
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.canvas-wrap svg { width: 100%; height: 100%; display: block; }

/* ---------- Desktop: App-Gefühl, kein Seiten-Scroll ---------- */
@media (min-width: 821px) {
  html, body { height: 100%; }
  body { overflow: hidden; }
  .layout { height: calc(100% - 56px); }
  .panel { overflow-y: auto; }         /* Sidebar scrollt nur falls nötig */
  #panel { border-right: 1px solid var(--line); }
  .panel-right { border-left: 1px solid var(--line); }
  .stage { height: 100%; container-type: size; }
  .canvas-wrap { width: min(100cqw, 100cqh); }   /* größtes Quadrat, das passt */
}

/* ---------- Mobile: gestapelt, Kern-Schleife zuerst ---------- */
/* Reihenfolge: Mandala → 🎲 Variante → Stil/Form/Baukasten → Export/Ausmalen.
   Nur visuell (order), die DOM-Reihenfolge bleibt für Tastatur/Screenreader. */
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .panel { border-bottom: 1px solid var(--line); }

  .stage      { order: 0; padding: 12px 16px 4px; }
  #panel      { order: 1; }
  #panelRight { order: 2; }

  /* Formularfelder >= 16px, sonst zoomt iOS beim Fokussieren automatisch rein */
  select, input[type="text"], input[type="number"] { font-size: 16px; }
  .ring-row select { font-size: 16px; padding: 6px 8px; }

  /* „Variante“ (‹ 🎲 Neu ›) direkt unter das Mandala ziehen */
  #variantGroup { order: -1; }
  #variantGroup h2 { display: none; }          /* spart Höhe, ist selbsterklärend */
  #variantGroup .btn-row .btn { padding: 14px 10px; font-size: 15px; }
  #variantGroup #randomBtn { flex: 2; }
}