/* Schwarz und Silber wie die Startseite: Anthrazit, eine schwache Lichtquelle oben,
   helle 1px-Kanten statt Leuchten, keine Farbe außer Grautönen (Rot nur für Löschen).
   Die Seitenvorschau bleibt weißes Papier. */
:root {
  --bg: #0c0d0f;
  --raise: #131417;
  --raise-2: #1a1b1f;
  --sunk: #090a0b;
  --edge: rgba(255, 255, 255, 0.08);
  --edge-hi: rgba(255, 255, 255, 0.17);
  --text: #c9ccd2;
  --bright: #eef0f3;
  --muted: #80858e;
  --danger: #e5484d;
  /* Schreibfelder (werden per JS ins Canvas übernommen) */
  --guide: rgba(220, 224, 230, 0.14);
  --guide-strong: rgba(220, 224, 230, 0.42);
  --ghost: rgba(220, 224, 230, 0.075);
  --ink: #eef0f3;
  --serif: "Newsreader", Georgia, serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --metal: linear-gradient(180deg, #f1f2f4, #b8bcc3);
  --metal-hover: linear-gradient(180deg, #ffffff, #c9ccd2);
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
body {
  margin: 0;
  min-height: 100svh;
  background:
    radial-gradient(ellipse 60% 40% at 25% -8%, rgba(255, 255, 255, 0.05), transparent 70%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 400 15px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
/* Körnung gegen Banding im Verlauf */
body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100;
  background-image: var(--noise); opacity: 0.035;
}
body::before {
  content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg);
}
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--bright); outline-offset: 2px; }

.app { max-width: 1200px; margin: 0 auto; padding-block: 0 48px; display: grid; gap: 20px; }

/* Kopf */
.top {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  padding-block: 14px; background: var(--bg); border-bottom: 1px solid var(--edge);
}
.word { font: 500 22px/1 var(--serif); color: var(--bright); text-decoration: none; letter-spacing: -0.01em; }
.steps { display: flex; gap: 2px; }
.step {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px 8px 8px; border-radius: 6px;
  color: var(--muted); text-decoration: none; font-weight: 500;
}
.step:hover { color: var(--text); }
.step-n {
  display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid var(--edge-hi); font: 500 12px/1 var(--mono);
}
.step[aria-current="page"] { color: var(--bright); background: var(--raise); box-shadow: inset 0 1px 0 var(--edge-hi), 0 0 0 1px var(--edge); }
.step[aria-current="page"] .step-n { background: var(--metal); color: #111214; border-color: transparent; }

.view { display: grid; gap: 18px; }

/* Einleitung mit Fortschritt */
.intro { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px 40px; padding-top: 12px; }
.intro-text { max-width: 36em; }
.title { margin: 0; font: 400 clamp(28px, 4vw, 40px)/1.08 var(--serif); color: var(--bright); letter-spacing: -0.02em; }
.sub { margin: 8px 0 0; color: var(--muted); text-wrap: pretty; }
.progress { display: grid; gap: 10px; flex: 0 1 320px; min-width: min(260px, 100%); }
.progress-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
#pass-label { font: 500 12px/1 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.num { font: 400 30px/1 var(--serif); color: var(--bright); font-variant-numeric: tabular-nums; }
.num b { font-weight: 500; }
.of { color: var(--muted); font-size: 20px; margin-left: 2px; }
.bar { position: relative; height: 3px; border-radius: 2px; background: var(--raise-2); overflow: hidden; }
.bar-fill { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--metal); transition: width 0.3s; }
.bar-tick { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--muted); }

/* Erste Hilfe beim Schreiben */
.tips {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; padding: 14px 16px;
  border: 1px solid var(--edge); border-radius: 8px; background: var(--raise); box-shadow: inset 0 1px 0 var(--edge-hi);
}
.tips p { margin: 0; flex: 1 1 380px; }
.tips .keys { flex-basis: 100%; order: 3; color: var(--muted); font-size: 13px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.sep { width: 1px; height: 12px; background: var(--edge-hi); margin-inline: 6px; }
kbd {
  display: inline-grid; place-items: center; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 4px;
  border: 1px solid var(--edge-hi); border-bottom-width: 2px; background: var(--raise-2); color: var(--text); font: 500 12px/1 var(--mono);
}

/* Knöpfe */
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.spacer { flex: 1; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 8px 16px;
  border-radius: 6px; border: 1px solid var(--edge-hi); background: var(--raise); color: var(--bright);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06); cursor: pointer; font-weight: 500;
  text-decoration: none; white-space: nowrap; transition: background-color .15s, border-color .15s, color .15s;
}
.btn:hover:not(:disabled) { background: var(--raise-2); border-color: rgba(255, 255, 255, 0.26); }
.btn:disabled { opacity: 0.3; cursor: default; }
.btn svg { flex: none; }
.btn-icon { width: 40px; padding: 0; }
.btn-primary {
  background: var(--metal); color: #111214; border-color: transparent; font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), inset 0 -1px 0 rgba(0, 0, 0, 0.25), 0 1px 2px rgba(0, 0, 0, 0.6);
}
.btn-primary:hover:not(:disabled) { background: var(--metal-hover); border-color: transparent; }
.btn-text { background: transparent; border-color: transparent; box-shadow: none; color: var(--muted); padding-inline: 10px; }
.btn-text:hover:not(:disabled) { background: transparent; border-color: transparent; color: var(--bright); }
.btn-quiet { min-height: 34px; padding: 6px 14px; font-size: 14px; }
.btn-danger { color: var(--danger); }
.btn-danger:not(.btn-text) { border-color: color-mix(in srgb, var(--danger) 50%, transparent); }
.mono { font: 400 13px/1.2 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 5px; font-size: 13px; border: 1px solid var(--edge); color: var(--muted); }
.chip-warn { color: #f0a3a5; border-color: color-mix(in srgb, var(--danger) 35%, transparent); }

.pager { display: flex; align-items: center; gap: 10px; }
.pager-label { display: grid; gap: 3px; min-width: 9.5em; }
#page-group { color: var(--bright); font-weight: 500; line-height: 1.1; }
/* Seite voll: der Pfeil nach rechts wird zur Hauptaktion */
#next.nudge { background: var(--metal); color: #111214; border-color: transparent; }

/* Schreibfelder */
.grid { display: grid; grid-template-columns: repeat(var(--cols, 4), minmax(0, 1fr)); gap: 12px; touch-action: manipulation; }
.cell {
  display: grid; gap: 6px; min-width: 0; padding: 8px; border-radius: 8px;
  background: var(--raise); border: 1px solid var(--edge); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: border-color .2s, box-shadow .2s;
}
/* Nächstes Feld: nur hellere Kante, Größe und Lage bleiben gleich */
.cell.next { background: var(--raise-2); border-color: rgba(255, 255, 255, 0.45); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22); }
.cell-head { display: flex; align-items: center; gap: 8px; height: 22px; padding-inline: 2px; min-width: 0; overflow: hidden; }
.cell-char { font: 500 17px/1 var(--sans); color: var(--bright); min-width: 0.8em; }
.cell-num { font: 400 11px/1 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; min-width: 0; }
.cell.filled .cell-num::after { content: " ✓"; color: var(--text); }
.cell-clear {
  margin-left: auto; width: 22px; height: 22px; border-radius: 4px; border: 1px solid var(--edge); background: transparent;
  color: var(--muted); font-size: 14px; line-height: 1; cursor: pointer; visibility: hidden;
}
.cell-clear:hover { color: var(--bright); border-color: var(--edge-hi); }
.cell.filled .cell-clear { visibility: visible; }
.cell-canvas {
  width: 100%; aspect-ratio: 1.15; max-width: 100%; display: block; border-radius: 5px; background: var(--sunk);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.6);
  touch-action: none; cursor: crosshair; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none;
}

.foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding-top: 14px; border-top: 1px solid var(--edge); }
.file-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; margin-left: -10px; }
.status { display: inline-flex; align-items: center; gap: 8px; font: 400 12px/1 var(--mono); color: var(--muted); }
.status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--edge-hi); }
.status[data-state="saved"]::before { background: var(--text); }
.status[data-state="error"]::before { background: var(--danger); }
.confirm { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 6px; }

/* Setzen */
.compose { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 24px; align-items: start; padding-top: 12px; }
@media (max-width: 900px) { .compose { grid-template-columns: minmax(0, 1fr); } }
.panel {
  display: grid; gap: 22px; min-width: 0; padding: 20px; border-radius: 10px;
  background: var(--raise); border: 1px solid var(--edge); box-shadow: inset 0 1px 0 var(--edge-hi);
}
.label { font: 500 12px/1 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.label-value { text-transform: none; letter-spacing: 0; color: var(--text); margin-left: 6px; }
textarea {
  width: 100%; min-height: 200px; resize: vertical; padding: 14px 16px; border-radius: 6px;
  border: 1px solid var(--edge); background: var(--sunk); color: var(--bright); line-height: 1.6;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
textarea:focus { outline: none; border-color: var(--edge-hi); }
.settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 20px 22px; border: 0; padding: 0; margin: 0; }
.field { display: grid; gap: 10px; min-width: 0; align-content: start; }
.field-row { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.field output { font: 400 12px/1 var(--mono); color: var(--text); font-variant-numeric: tabular-nums; }

/* Segmentschalter */
.seg { display: flex; width: fit-content; max-width: 100%; padding: 3px; gap: 2px; border-radius: 7px; background: var(--sunk); border: 1px solid var(--edge); }
.seg label { padding: 6px 12px; border-radius: 5px; cursor: pointer; color: var(--muted); font-weight: 500; font-size: 14px; }
.seg label:hover { color: var(--text); }
.seg input, .swatches input { position: absolute; opacity: 0; pointer-events: none; }
.seg label:has(input:checked) { background: var(--raise-2); color: var(--bright); box-shadow: inset 0 1px 0 var(--edge-hi), 0 1px 2px rgba(0, 0, 0, 0.5); }
.seg label:has(input:focus-visible), .swatches label:has(input:focus-visible) { outline: 2px solid var(--bright); outline-offset: 1px; }
.swatches { display: flex; gap: 10px; }
.swatches label { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; cursor: pointer; border: 1px solid transparent; }
.swatches label:has(input:checked) { border-color: var(--bright); }
.swatch { width: 22px; height: 22px; border-radius: 50%; display: block; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.12); }
.span-2 { grid-column: 1 / -1; }

/* Schieberegler: Spur mit silberner Füllung bis zum Griff (--fill setzt app.js) */
input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 18px; margin: 0; background: transparent; cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px; border-radius: 2px;
  background: linear-gradient(var(--text), var(--text)) 0 / var(--fill, 50%) 100% no-repeat, var(--raise-2);
}
input[type="range"]::-moz-range-track { height: 3px; border-radius: 2px; background: var(--raise-2); }
input[type="range"]::-moz-range-progress { height: 3px; border-radius: 2px; background: var(--text); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 16px; height: 16px; margin-top: -6.5px; border-radius: 50%;
  background: var(--metal); box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(0, 0, 0, 0.6);
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border: 0; border-radius: 50%;
  background: var(--metal); box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(0, 0, 0, 0.6);
}
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 2px var(--bright); }

.more { border-top: 1px solid var(--edge); padding-top: 16px; }
.more summary {
  display: flex; align-items: center; gap: 8px; cursor: pointer; list-style: none; color: var(--text); font-weight: 500;
}
.more summary::-webkit-details-marker { display: none; }
.more summary::before { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(-45deg); transition: transform .15s; }
.more[open] summary::before { transform: rotate(45deg); }
.more-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 20px 22px; margin-top: 18px; }

.sheet { display: grid; gap: 14px; min-width: 0; }
@media (min-width: 901px) { .sheet { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 84px); } }
.sheet-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.page-frame {
  background: #fff; border-radius: 3px; overflow: hidden; max-width: 100%;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), 0 24px 50px -20px rgba(0, 0, 0, 0.9);
}
#preview { display: block; width: 100%; height: auto; }
/* Am Desktop passt die ganze Seite samt Knöpfen ins Fenster (A4 ist 1,414-mal so hoch wie breit) */
@media (min-width: 901px) { .page-frame { width: min(100%, calc((100svh - 290px) / 1.414)); margin-inline: auto; } }
.export { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.export .btn { flex: 1 1 160px; min-height: 48px; font-size: 15px; }
.export .btn-primary { flex-grow: 2; }
/* Handy: die Knöpfe bleiben am unteren Rand, solange die Vorschau zu sehen ist */
@media (max-width: 900px) {
  .export {
    position: sticky; bottom: calc(10px + env(safe-area-inset-bottom, 0px)); z-index: 4;
    margin: -8px; padding: 8px; border-radius: 10px;
    background: rgba(12, 13, 15, 0.94); border: 1px solid var(--edge); box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
    flex-wrap: nowrap;
  }
  .export .btn { flex: 1 1 0; min-width: 0; min-height: 46px; padding-inline: 12px; font-size: 14px; }
  .export .btn-primary { flex: 2.2 1 0; }
}
.hint { font-size: 13px; color: var(--muted); margin: 0; }
.gn-result { margin: 0; padding: 12px 14px; background: var(--raise); border: 1px solid var(--edge); border-radius: 8px; font-size: 14px; color: var(--muted); }
.gn-result[data-state="ok"] { color: var(--bright); border-color: var(--edge-hi); }
.gn-result[data-state="error"] { color: #f0a3a5; }

.empty { display: grid; gap: 10px; justify-items: start; padding: 48px 0; max-width: 36em; }
.empty .btn { margin-top: 14px; }

.toast {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 20;
  background: var(--raise-2); color: var(--bright); border: 1px solid var(--edge-hi); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 12px 30px rgba(0, 0, 0, 0.6);
  padding: 10px 18px; border-radius: 8px; max-width: calc(100% - 32px); font-weight: 500;
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }