/* C1 opt-in foundation. C0 approved 2026-09-05; no gallery or video states. */
:root {
  color-scheme: light;
  --sm-kernbraun: #6c4b3a;
  --sm-kernbraun-hover: #5a3f31;
  --sm-akzent: #b98554;
  --sm-sand: #c8a97e;
  --sm-gruenblau: #6c8a89;
  --sm-blau: #4c6e8c;
  --sm-grau: #8e9da3;
  --sm-ink: #1a1410;
  --sm-ink-soft: #2b2b2b;
  --sm-paper: #ffffff;
  --sm-paper-warm: #fbf9f6;
  --sm-cream: #f5f3f0;
  --sm-cream-warm: #f7f5f2;
  --sm-stone: #666666;
  --sm-soft: #555555;
  --sm-border: #e0dad3;
  --sm-line: rgba(26, 20, 16, 0.12);
  --sm-panel-tint: rgba(108, 75, 58, 0.055);
  --sm-blue-tint: rgba(76, 110, 140, 0.09);
  --sm-hover: rgba(108, 75, 58, 0.08);
  --sm-focus: rgba(76, 110, 140, 0.36);
  --sm-backdrop: rgba(26, 20, 16, 0.46);
  --sm-shadow-card: 0 18px 40px rgba(0, 0, 0, 0.07);
  --sm-shadow-button: 0 2px 6px rgba(0, 0, 0, 0.06);
  --sm-hint-fg: #3f5957;
  --sm-hint-bg: #e8eeed;
  --sm-warn-fg: #7e432d;
  --sm-warn-bg: #f9ece4;
  --sm-required: #c67a5a;
  --sm-on-accent: #ffffff;
  --sm-stage-a: #f1ece6;
  --sm-stage-b: #f7f5f2;
  --sm-stage-c: #ece7df;
  --sm-font-serif: "DM Serif Text", Georgia, "Times New Roman", serif;
  --sm-font-body: "Roboto", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sm-font-mono: "DM Mono", ui-monospace, SFMono-Regular, monospace;
  --sm-radius-control: 12px;
  --sm-radius-inner: 14px;
  --sm-radius-page: 26px;
  --sm-radius-pill: 999px;
  --sm-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --sm-fast: 180ms;
}

[data-theme="dark"] {
  color-scheme: dark;
  --sm-kernbraun: #d2a98e;
  --sm-kernbraun-hover: #b98d72;
  --sm-akzent: #d49a6e;
  --sm-gruenblau: #9cbbba;
  --sm-blau: #7baec8;
  --sm-ink: #ececec;
  --sm-ink-soft: #c0c0c0;
  --sm-paper: #121212;
  --sm-paper-warm: #1a1a1a;
  --sm-cream: #1f1f1f;
  --sm-cream-warm: #232323;
  --sm-stone: #a4a4a4;
  --sm-soft: #b8b8b8;
  --sm-border: rgba(255, 255, 255, 0.12);
  --sm-line: rgba(255, 255, 255, 0.14);
  --sm-panel-tint: rgba(255, 255, 255, 0.045);
  --sm-blue-tint: rgba(123, 174, 200, 0.12);
  --sm-hover: rgba(210, 169, 142, 0.12);
  --sm-focus: rgba(123, 174, 200, 0.48);
  --sm-backdrop: rgba(0, 0, 0, 0.72);
  --sm-shadow-card: 0 18px 40px rgba(0, 0, 0, 0.5);
  --sm-hint-fg: #a8c9c7;
  --sm-hint-bg: #1b2524;
  --sm-warn-fg: #e8a98c;
  --sm-warn-bg: #2a2018;
  --sm-required: #c67a5a;
  --sm-on-accent: #121212;
  --sm-stage-a: #1a1a1a;
  --sm-stage-b: #141414;
  --sm-stage-c: #101010;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --sm-kernbraun: #d2a98e;
    --sm-kernbraun-hover: #b98d72;
    --sm-akzent: #d49a6e;
    --sm-gruenblau: #9cbbba;
    --sm-blau: #7baec8;
    --sm-ink: #ececec;
    --sm-ink-soft: #c0c0c0;
    --sm-paper: #121212;
    --sm-paper-warm: #1a1a1a;
    --sm-cream: #1f1f1f;
    --sm-cream-warm: #232323;
    --sm-stone: #a4a4a4;
    --sm-soft: #b8b8b8;
    --sm-border: rgba(255, 255, 255, 0.12);
    --sm-line: rgba(255, 255, 255, 0.14);
    --sm-panel-tint: rgba(255, 255, 255, 0.045);
    --sm-blue-tint: rgba(123, 174, 200, 0.12);
    --sm-hover: rgba(210, 169, 142, 0.12);
    --sm-focus: rgba(123, 174, 200, 0.48);
    --sm-backdrop: rgba(0, 0, 0, 0.72);
    --sm-shadow-card: 0 18px 40px rgba(0, 0, 0, 0.5);
    --sm-hint-fg: #a8c9c7;
    --sm-hint-bg: #1b2524;
    --sm-warn-fg: #e8a98c;
    --sm-warn-bg: #2a2018;
    --sm-on-accent: #121212;
    --sm-stage-a: #1a1a1a;
    --sm-stage-b: #141414;
    --sm-stage-c: #101010;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-width: 0;
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  color: var(--sm-ink-soft);
  background: radial-gradient(circle at top left, var(--sm-stage-a), var(--sm-stage-b) 50%, var(--sm-stage-c));
  background-attachment: fixed;
  font-family: var(--sm-font-body);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

button,
select,
input,
textarea {
  font: inherit;
}

button,
select,
input,
textarea,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--sm-blau);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: var(--sm-radius-pill);
  color: var(--sm-on-accent);
  background: var(--sm-kernbraun);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.segmented {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
  margin: 0;
  padding: 3px;
  border: 1px solid var(--sm-border);
  border-radius: var(--sm-radius-pill);
  background: var(--sm-paper-warm);
}

.segmented legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.segmented button {
  min-height: 44px;
  padding: 7px 13px;
  border: 0;
  border-radius: var(--sm-radius-pill);
  color: var(--sm-soft);
  background: transparent;
  font-size: 0.78rem;
  font-weight: 400;
  cursor: pointer;
}

.segmented button:hover {
  color: var(--sm-ink);
  background: var(--sm-hover);
}

.segmented button[aria-pressed="true"] {
  color: var(--sm-on-accent);
  background: var(--sm-kernbraun);
}


.page-eyebrow, .box-label { font-family: var(--sm-font-mono); font-size: .7rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; }
.page-eyebrow { margin: 0 0 9px; color: var(--sm-blau); }
.page-card {
  width: 100%;
  min-width: 0;
  min-height: 620px;
  padding: clamp(28px, 5vw, 50px);
  border-radius: var(--sm-radius-page);
  color: var(--sm-ink-soft);
  background: var(--sm-paper);
  box-shadow: var(--sm-shadow-card);
}

.page-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 34px;
}

.page-brand__logo {
  display: block;
  width: 168px;
  max-width: 52%;
  height: auto;
}

.page-brand__logo--dark {
  display: none;
}

[data-theme="dark"] .page-brand__logo--light {
  display: none;
}

[data-theme="dark"] .page-brand__logo--dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .page-brand__logo--light {
    display: none;
  }

  :root:not([data-theme="light"]) .page-brand__logo--dark {
    display: block;
  }
}

.page-card h1,
.page-card h2 {
  color: var(--sm-ink);
  font-family: var(--sm-font-serif);
  font-weight: 400;
}

.page-card h1 {
  max-width: 18ch;
  margin: 0 0 13px;
  font-size: clamp(1.85rem, 5vw, 2.65rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-card h2 {
  margin: 0 0 9px;
  font-size: 1.18rem;
  line-height: 1.28;
}

.page-lead {
  max-width: 62ch;
  margin: 0 0 28px;
  color: var(--sm-soft);
  font-size: 1rem;
  text-wrap: pretty;
}

/* Der Fließtext der Seitenkarte steht auf 300; das Standard-`bolder` eines
   `strong` landet damit auf 400 und ist praktisch unsichtbar. Roboto liegt
   lokal nur in 300/400/500 vor (static/css/fonts.css) — 500 ist deshalb der
   stärkste echte Schnitt, 700 würde der Browser nur synthetisieren. */
.page-card strong { font-weight: 500; }

.content-stack {
  display: grid;
  gap: 16px;
}

.data-card,
.info-card,
.warn-card {
  min-width: 0;
  padding: 18px 20px;
  border-radius: var(--sm-radius-inner);
}

.data-card {
  background: var(--sm-paper-warm);
  border: 1px solid var(--sm-border);
}

.info-card {
  color: var(--sm-hint-fg);
  background: var(--sm-hint-bg);
  border: 0;
}

.warn-card {
  color: var(--sm-warn-fg);
  background: var(--sm-warn-bg);
  border: 0;
}

.box-label {
  display: block;
  margin-bottom: 7px;
  color: inherit;
  font-size: 0.65rem;
}

.data-card .box-label {
  color: var(--sm-blau);
}

.data-card p,
.data-card li {
  color: var(--sm-ink-soft);
  font-size: 1rem;
}

.info-card p,
.info-card li,
.warn-card p,
.warn-card li {
  color: inherit;
  font-size: 0.825rem;
}

.data-card p,
.info-card p,
.warn-card p {
  margin: 0;
  overflow-wrap: anywhere;
}

.data-card :is(ul, ol),
.info-card :is(ul, ol),
.warn-card :is(ul, ol) {
  margin: 6px 0 0;
  padding-inline-start: 1.25rem;
}

.data-card li,
.info-card li,
.warn-card li {
  margin-bottom: 4px;
  padding-inline-start: 0.2rem;
  overflow-wrap: anywhere;
}

.key-values {
  margin: 0;
}

.key-values div {
  display: grid;
  grid-template-columns: minmax(110px, 0.7fr) minmax(0, 1.3fr);
  gap: 20px;
  padding: 8px 0;
  border-bottom: 1px solid var(--sm-line);
}

.key-values div:last-child {
  border-bottom: 0;
}

.key-values dt {
  color: var(--sm-stone);
  font-size: 0.82rem;
}

.key-values dd {
  min-width: 0;
  margin: 0;
  color: var(--sm-ink);
  font-weight: 400;
  overflow-wrap: anywhere;
}

.action-stack {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 44px;
  min-height: 44px;
  max-width: 100%;
  padding: 11px 22px;
  border-radius: var(--sm-radius-pill);
  font-weight: 500;
  line-height: 1.35;
  overflow-wrap: anywhere;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--sm-fast) var(--sm-ease), color var(--sm-fast) var(--sm-ease), transform var(--sm-fast) var(--sm-ease), box-shadow var(--sm-fast) var(--sm-ease);
}

.button--primary {
  border: 2px solid var(--sm-kernbraun);
  color: var(--sm-on-accent);
  background: var(--sm-kernbraun);
}

.button--secondary {
  border: 2px solid var(--sm-kernbraun);
  color: var(--sm-kernbraun);
  background: transparent;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--sm-shadow-button);
}

.button--primary:hover {
  border-color: var(--sm-kernbraun-hover);
  background: var(--sm-kernbraun-hover);
}

.button--secondary:hover {
  background: var(--sm-hover);
}

.button:active {
  transform: translateY(0);
}

.button[disabled] {
  opacity: 0.56;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-grid {
  display: grid;
  gap: 18px;
}

.field label,
.choice-group legend {
  display: block;
  margin-bottom: 7px;
  color: var(--sm-ink-soft);
  font-size: 0.86rem;
  font-weight: 500;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--sm-border);
  border-radius: var(--sm-radius-control);
  color: var(--sm-ink);
  background: var(--sm-paper);
}

.field textarea {
  min-height: 108px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--sm-blau);
  outline: 3px solid var(--sm-focus);
  outline-offset: 1px;
}

.field--error input,
.field--error textarea,
.field--error select {
  border-color: var(--sm-required);
}

.field-error {
  margin: 6px 0 0;
  color: var(--sm-warn-fg);
  font-size: 0.78rem;
}

.choice-group {
  margin: 0;
  padding: 0;
  border: 0;
}

.choice {
  display: flex;
  gap: 10px;
  align-items: center;
  min-height: 44px;
  margin-top: 8px;
  padding-block: 4px;
  color: var(--sm-soft);
  font-size: 0.86rem;
  overflow-wrap: anywhere;
}

.choice input {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--sm-kernbraun);
}

.waiting-dots {
  display: flex;
  align-items: center;
  width: 100%;
  height: 12px;
  gap: 9px;
}

.waiting-dots span {
  width: 7px;
  height: 7px;
  border-radius: var(--sm-radius-pill);
  background: var(--sm-akzent);
  opacity: 0.28;
  animation: waiting-pulse 2.6s ease-in-out infinite;
}

.waiting-dots span:nth-child(2) {
  animation-delay: 0.32s;
}

.waiting-dots span:nth-child(3) {
  animation-delay: 0.64s;
}

@keyframes waiting-pulse {
  0%, 100% { opacity: 0.22; transform: scale(0.86); }
  50% { opacity: 0.85; transform: scale(1); }
}

.page-footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 32px;
  padding-top: 17px;
  border-top: 1px solid var(--sm-line);
  color: var(--sm-stone);
  font-size: 0.76rem;
}

.page-footer a {
  display: inline-flex;
  align-items: center;
  min-width: 44px;
  min-height: 44px;
  color: var(--sm-soft);
}

/* C2 Fußzeilenlayout der zwei Dokumentenseiten, aus landing-download.css hierher
   verschoben (C2c): zentriert, kompakte Zeilenabstände, eine einzige Trennlinie
   trotz zweier gestapelter Fußzeilen. */
.page-card > .page-footer {
  justify-content: center;
  line-height: 1.5;
  text-align: center;
}
.page-card > .page-footer:first-of-type {
  column-gap: .3em;
  row-gap: 0;
}
.page-card > .page-footer a {
  min-width: 0;
  /* 44px würde die Fußzeile sprengen; 24px ist die WCAG-2.5.8-Untergrenze
     (Stufe AA) für Zielgrößen. Der 44px-Vorgabewert in .page-footer a oben
     bleibt als Vorgabewert stehen und wird hier von der spezifischeren Regel
     überschrieben. */
  min-height: 24px;
}
.page-card > .page-footer + .page-footer {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
  row-gap: 0;
}

.landing-shell { width: min(900px, calc(100% - 48px)); margin: 0 auto; padding-block: 24px 48px; }
.landing-tools { display: flex; justify-content: flex-end; margin-bottom: 16px; }
.page-card { overflow-wrap: anywhere; }
.field, .form-grid { min-width: 0; }
.field :is(input, textarea, select) { min-width: 0; }
.field :is(input, textarea)::placeholder { color: var(--sm-soft); opacity: 1; }
.field :is(input, textarea, select):disabled, .choice input:disabled { opacity: .56; cursor: not-allowed; }
.field-help { margin: 6px 0 0; color: var(--sm-soft); font-size: .78rem; }
.waiting-status p { margin: 8px 0 0; color: var(--sm-soft); font-size: .85rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
[hidden] { display: none !important; }
@media (max-width: 568px) {
  .landing-shell { width: calc(100% - 24px); padding-block: 12px 28px; }
  .page-card { min-height: 560px; padding: 28px 22px; }
  .page-brand { margin-bottom: 26px; }
  .page-brand__logo { max-width: 68%; }
  .page-card h1 { font-size: 1.85rem; }
  .data-card, .info-card, .warn-card { padding: 16px; }
  .key-values div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .action-row--secondary { display: grid; grid-template-columns: minmax(0, 1fr); align-items: stretch; }
  .action-row--secondary .button { width: 100%; }
  .action-row--primary .button { width: fit-content; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
  .button:hover { transform: none; }
  .waiting-dots span { animation: none; opacity: .65; }
}