:root {
  --bg: #f3f4f6;
  --surface: #ffffff;
  --surface-2: #f8f9fb;
  --border: #dde1e6;
  --text: #1c1f24;
  --muted: #5f6873;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --accent-soft: #e3ecfd;
  --danger: #c62828;
  --canvas-bg: #e6e8ec;
  --shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .06);
  --radius: 8px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171b;
    --surface: #1e2126;
    --surface-2: #24282e;
    --border: #343941;
    --text: #e8eaed;
    --muted: #9aa3ae;
    --accent: #4f8bff;
    --accent-text: #ffffff;
    --accent-soft: #23324d;
    --danger: #ef5350;
    --canvas-bg: #0f1114;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

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

body {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  overflow: hidden;
}

svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
svg .filled { fill: currentColor; }

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
button:disabled { opacity: .4; cursor: default; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface-2);
  font: 12px/1.5 ui-monospace, Consolas, monospace;
  text-align: center;
}

/* ---------- Kopfzeile ---------- */

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; margin-right: 8px; }
.brand svg { color: var(--accent); }

.group { display: flex; align-items: center; gap: 2px; padding-left: 12px; border-left: 1px solid var(--border); }
.spacer { flex: 1; }

.icon-btn, .text-btn, .zoom-label, .tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  background: transparent;
  border-radius: 6px;
}
.icon-btn { width: 34px; height: 34px; }
.text-btn { height: 34px; padding: 0 10px; color: var(--muted); }
.zoom-label { height: 34px; min-width: 64px; padding: 0 6px; font-variant-numeric: tabular-nums; }
.icon-btn:hover:not(:disabled), .text-btn:hover:not(:disabled), .zoom-label:hover:not(:disabled) { background: var(--surface-2); color: var(--text); }
.text-btn.danger { color: var(--danger); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font-weight: 500;
}
.btn:hover:not(:disabled) { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); background: var(--accent); }

.warning {
  padding: 8px 16px;
  background: #fff4e5;
  color: #7a4100;
  border-bottom: 1px solid #ffd8a8;
}
@media (prefers-color-scheme: dark) {
  .warning { background: #3a2a12; color: #ffcf8a; border-color: #5a4220; }
}

/* ---------- Hauptbereich ---------- */

.main { flex: 1; display: flex; min-height: 0; }

.toolbar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 6px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}
.toolbar .sep { width: 24px; height: 1px; margin: 6px 0; background: var(--border); flex: none; }
.tool { width: 40px; height: 40px; color: var(--muted); flex: none; }
.tool:hover { background: var(--surface-2); color: var(--text); }
.tool.active { background: var(--accent-soft); color: var(--accent); }

.workspace { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.props {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 48px;
  padding: 6px 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.props-title { font-weight: 600; min-width: 90px; }
.props-hint { color: var(--muted); font-size: 13px; }
.prop { display: flex; align-items: center; gap: 8px; }
.prop label { display: flex; align-items: center; gap: 8px; color: var(--muted); white-space: nowrap; }
.prop output { min-width: 2ch; color: var(--text); font-variant-numeric: tabular-nums; }
.prop input[type="range"] { width: 110px; accent-color: var(--accent); }
.prop input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; margin: 0; }
.prop-actions { display: flex; align-items: center; gap: 4px; }

input[type="color"] {
  width: 32px;
  height: 28px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
}

.swatches { display: flex; gap: 4px; }
.swatch {
  width: 20px;
  height: 20px;
  padding: 0;
  border: 1px solid rgba(0, 0, 0, .2);
  border-radius: 50%;
}
.swatch:hover { transform: scale(1.15); }

.viewport {
  flex: 1;
  display: flex;
  overflow: auto;
  background: var(--canvas-bg);
  position: relative;
}
.viewport.dragging { outline: 3px dashed var(--accent); outline-offset: -8px; }

.stage {
  position: relative;
  margin: auto;
  padding: 24px;
}
#canvas {
  display: block;
  background: #fff;
  box-shadow: var(--shadow);
  touch-action: none;
}

#text-editor {
  position: absolute;
  margin: 24px 0 0 24px;
  border: 1px dashed var(--accent);
  outline: none;
  resize: none;
  overflow: hidden;
  white-space: pre;
  box-sizing: content-box;
}

.empty { margin: auto; padding: 24px; }
.empty-card {
  max-width: 480px;
  padding: 36px 32px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.empty-card > svg { width: 44px; height: 44px; color: var(--accent); stroke-width: 1.6; }
.empty-card h1 { margin: 12px 0 6px; font-size: 22px; }
.empty-card p { margin: 0 0 18px; color: var(--muted); }
.empty-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.privacy-note { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 0 !important; font-size: 13px; }
.privacy-note svg { width: 16px; height: 16px; color: #2e7d32; }

.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--muted);
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.lock { display: inline-flex; align-items: center; gap: 6px; }
.lock svg { width: 14px; height: 14px; color: #2e7d32; }

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 40px;
  transform: translate(-50%, 20px);
  max-width: min(560px, calc(100vw - 32px));
  padding: 10px 16px;
  border-radius: var(--radius);
  background: #1f2937;
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.ok { background: #1b5e20; }
.toast.error { background: #b71c1c; }

/* ---------- Dialog ---------- */

dialog {
  width: min(720px, calc(100vw - 32px));
  max-height: calc(100vh - 64px);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0, 0, 0, .45); }
.dlg-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.dlg-head h2 { margin: 0; font-size: 18px; }
.dlg-body { padding: 6px 22px 22px; overflow: auto; }
.dlg-body h3 { margin: 18px 0 8px; font-size: 15px; }
.dlg-body ul { margin: 0; padding-left: 20px; }
.dlg-body li { margin: 4px 0; }
.dlg-body code { font-size: 12px; background: var(--surface-2); padding: 1px 4px; border-radius: 4px; }
.tip { padding: 10px 12px; border-radius: var(--radius); background: var(--accent-soft); }
.shortcuts { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 6px 18px; }
.shortcuts div { display: flex; align-items: center; gap: 4px; }
.shortcuts span { margin-left: 8px; color: var(--muted); }

/* ---------- Schmale Fenster ---------- */

@media (max-width: 760px) {
  .brand span, #btn-info span, #btn-download span { display: none; }
  .main { flex-direction: column; }
  .toolbar { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  .toolbar .sep { width: 1px; height: 24px; margin: 0 6px; }
  .group { padding-left: 6px; }
}