/* KUKANILEA Webtools — QR-Rechnung. Eigenständige Subdomain, eigenes Mini-Design-System
   (Kanon-Tokens 1:1 aus kukanilea-fahrtenbuch/styles.css übernommen, nicht importiert —
   volle Unabhängigkeit der Subdomain; identische Tokens wie andere Themen). */

:root {
  --cream: #ffffff;
  --ink: #0f172a;
  --ink-2: #1e293b;
  --ink-3: #475569;
  --ink-4: #5a6678;
  --line: #e6ebf1;
  --line-2: #cbd5e1;
  --white: #ffffff;
  --paper: #f4f6f9;
  --blue: #1B4965;
  --blue-2: #123449;
  --blue-soft: #d7e3ea;
  --blue-tint: #eef3f6;
  --green: #18553a;
  --green-soft: #e4f1e9;
  --warn-ink: #97491a;
  --warn-soft: #fde9d4;
  --err-ink: #9b1c1c;
  --err-soft: #fbe2e2;

  --radius: 14px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 0 rgba(15,23,42,.04), 0 1px 2px rgba(15,23,42,.05);
  --shadow: 0 1px 0 rgba(15,23,42,.04), 0 12px 28px -16px rgba(15,23,42,.16);

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "SF Mono", "IBM Plex Mono", monospace;
  --maxw: 880px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html body [hidden] { display: none; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.wide { max-width: 1080px; }

a { color: var(--blue); }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--blue); color: var(--white); padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ── Header ── */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 40;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 20px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: .01em; }
.brand-sub { font-size: 11px; color: var(--ink-4); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.brand-sub.tool-suite { color: var(--blue); }

.header-actions a.text-link { font-size: 14px; font-weight: 600; text-decoration: none; }

/* ── Hero / intro ── */
.tool-hero { padding: 44px 0 8px; }
.tool-kicker {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--blue); margin-bottom: 10px;
}
.tool-hero h1 { font-size: clamp(28px, 4vw, 38px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.01em; }
.tool-hero p.lede { font-size: 17px; color: var(--ink-3); max-width: 60ch; margin: 0 0 0; }

.privacy-note {
  display: flex; align-items: flex-start; gap: 10px;
  margin: 22px 0 0;
  padding: 14px 16px;
  background: var(--blue-tint);
  border: 1px solid var(--blue-soft);
  border-radius: var(--radius);
  font-size: 14px; color: var(--blue-2);
}
.privacy-note svg { flex: none; margin-top: 2px; }

/* ── Tool card / workspace ── */
.tool-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 28px;
  margin: 28px 0 40px;
}
.tool-card-title { margin: 0 0 4px; font-size: 17px; }
.tool-card-hint { margin: 0 0 14px; font-size: 14px; color: var(--ink-3); }

.tool-actions { display: flex; align-items: center; gap: 14px; margin-top: 20px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14px; font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover:not(:disabled) { background: var(--blue-2); }
.btn-primary:disabled { background: var(--line-2); color: var(--ink-4); cursor: not-allowed; }
.btn-ghost { background: var(--white); color: var(--ink-2); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-ghost:disabled { opacity: .45; cursor: not-allowed; border-color: var(--line-2); color: var(--ink-2); }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }

.tool-status { font-size: 14px; color: var(--ink-3); }
.tool-status[data-state="error"] { color: var(--warn-ink); }
.tool-status[data-state="done"] { color: var(--green); font-weight: 600; }

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 40px;
  margin-top: 40px;
}
.ft-row {
  display: flex; flex-wrap: wrap; gap: 10px 24px;
  align-items: center; justify-content: space-between;
  font-size: 13px; color: var(--ink-4);
}
.ft-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.ft-links a { color: var(--ink-4); text-decoration: none; }
.ft-links a:hover { color: var(--blue); }

/* ── Formular ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 20px;
}
.form-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 720px) { .form-grid-3 { grid-template-columns: 1fr; } }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.form-field select, .form-field input[type="text"], .form-field input[type="number"], .form-field textarea {
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
}
.form-field textarea { resize: vertical; font-family: var(--font-sans); }
.form-field select:focus, .form-field input:focus, .form-field textarea:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-tint);
}
.span-2 { grid-column: 1 / -1; }
.field-hint { font-size: 13px; color: var(--ink-4); margin: 0; }

.field-status { font-size: 12.5px; margin: 2px 0 0; min-height: 1.2em; }
.field-status[data-state="ok"] { color: var(--green); }
.field-status[data-state="warn"] { color: var(--warn-ink); }
.field-status[data-state="error"] { color: var(--err-ink); }

.radio-row { display: flex; gap: 18px; flex-wrap: wrap; }
.radio-option { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; }
.radio-option input { margin-top: 3px; }
.radio-option span.hint { display: block; font-size: 12.5px; color: var(--ink-4); }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; gap: 4px; }
.faq-item { border-top: 1px solid var(--line); padding: 12px 0; }
.faq-item:first-child { border-top: none; padding-top: 0; }
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 14.5px; }
.faq-item p { margin: 10px 0 0; font-size: 14px; color: var(--ink-3); }

@media (max-width: 520px) {
  .tool-card { padding: 20px; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ── Formular + Live-Vorschau nebeneinander (Kanon: kukanilea-rechnung/-mahnung/-kassenbuch) ── */
.tool-section { max-width: clamp(0px, 96vw, 1400px); }
.tool-layout { display: grid; grid-template-columns: minmax(0, 1fr) clamp(320px, 30vw, 440px); gap: 20px; align-items: start; margin: 0 0 28px; }
.tool-card-stack { display: flex; flex-direction: column; }
.tool-layout .tool-card-stack .tool-card { margin: 0 0 20px; }
.tool-layout .tool-card-stack .tool-card:last-child { margin-bottom: 0; }
.av-preview-aside { position: sticky; top: 84px; }
.preview-label-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 0 8px 2px; }
.preview-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-4); }

/* Die QR-Rechnung ist Querformat (210 x 105 mm, Verhältnis 2:1) — braucht mehr Breite
   als eine A4-Hochformat-Vorschau, deshalb eigene, breitere Aside-Spalte. */
.qrbill-layout { grid-template-columns: minmax(0, 1fr) clamp(420px, 42vw, 620px); }
.qrbill-aside { position: sticky; top: 84px; }

.qrbill-sheet {
  display: flex;
  width: 100%;
  aspect-ratio: 210 / 105;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-family: var(--font-sans);
}
.qb-receipt {
  flex: 0 0 29.6%;
  padding: 3.2% 3.5%;
  display: flex;
  flex-direction: column;
  gap: 2.5%;
  min-width: 0;
}
.qb-perforation {
  flex: 0 0 1px;
  background-image: linear-gradient(var(--line-2) 60%, transparent 0%);
  background-size: 1px 6px;
  background-repeat: repeat-y;
  position: relative;
}
.qb-payment {
  flex: 1 1 auto;
  padding: 3.2% 3.5%;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.qb-title { font-weight: 700; font-size: clamp(9px, 1.6vw, 15px); margin: 0 0 6%; letter-spacing: .01em; }
.qb-label { font-size: clamp(5.5px, .95vw, 9px); font-weight: 700; text-transform: uppercase; letter-spacing: .03em; color: var(--ink-4); margin: 0; }
.qb-value { font-size: clamp(7px, 1.25vw, 11.5px); color: var(--ink); margin: 0 0 3%; word-break: break-word; }
.qb-mono { font-family: var(--font-mono); letter-spacing: .01em; }
.qb-amount-row { display: flex; gap: 8%; margin-top: auto; }
.qb-amount-row-payment { margin-top: 8%; }
.qb-annahme-label { margin-top: auto; }
.qb-annahme-box { border: 1px solid var(--line-2); border-radius: 4px; height: 14%; margin-top: 4%; }

.qb-payment-body { display: flex; gap: 5%; flex: 1; min-height: 0; }
.qb-qr-col { flex: 0 0 40%; display: flex; flex-direction: column; }
.qb-qr-canvas { width: 100%; height: auto; aspect-ratio: 1/1; image-rendering: pixelated; }
.qb-fields-col { flex: 1 1 auto; display: flex; flex-direction: column; min-width: 0; }

@media (max-width: 900px) {
  .tool-layout, .qrbill-layout { grid-template-columns: 1fr; }
  .av-preview-aside, .qrbill-aside { position: static; max-width: 640px; }
  .qb-title { font-size: 13px; }
  .qb-label { font-size: 9px; }
  .qb-value { font-size: 11px; }
}

/* ── Hub-Tabs (Kanon: kukanilea-minijob/styles.css) — EPC-QR (neutral) / Schweiz-Reiter ── */
.hub-tabs {
  display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 0;
  border-bottom: 1px solid var(--line);
}
.hub-tab-btn {
  border: 0; background: none; padding: 10px 16px; margin-bottom: -1px;
  font-size: 14px; font-weight: 600; color: var(--ink-3); cursor: pointer;
  border-bottom: 2px solid transparent;
}
.hub-tab-btn:hover { color: var(--blue); }
.hub-tab-btn.active { color: var(--blue-2); border-bottom-color: var(--blue); }
.hub-panel { margin-top: 8px; }

label .hint { color: var(--ink-4); font-weight: 400; font-size: 12px; }

/* ── EPC-QR-Vorschaukarte (schlichte Label/Wert-Liste statt Empfangsschein-Layout) ── */
.epc-preview-card { text-align: center; }
.epc-preview-card canvas { width: 100%; height: auto; max-width: 240px; margin: 0 auto 16px; display: block; }
.epc-pv-list { text-align: left; margin: 0; }
.epc-pv-list dt { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; color: var(--ink-4); margin: 10px 0 2px; }
.epc-pv-list dt:first-child { margin-top: 0; }
.epc-pv-list dd { font-size: 13px; color: var(--ink); margin: 0 0 0 0; word-break: break-word; }