/*
 * biKKe Bauteile — je Katalog-Eintrag (DESIGN_SYSTEM §1) eine Klasse `bk-…`, Varianten `bk-…--x`, Teile `bk-…__y`.
 * Werte NUR über Tokens (tokens.css). Keine Radien, Fasen per clip-path. Wächter: npm run ui:check.
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* ---------- bk-page: Seitenrahmen ---------- */
.bk-page {
  margin: 0;
  container-type: inline-size;
  min-height: 100vh;
  background: var(--bk-surface-2);
  color: var(--bk-text);
  font-family: var(--bk-font-body);
  font-size: var(--bk-size-body);
  line-height: var(--bk-line-body);
}
.bk-page :focus-visible {
  outline: 2px solid var(--bk-orange);
  outline-offset: 2px;
}

/* ---------- bk-section (Variante --alt) ---------- */
.bk-section {
  background: var(--bk-surface-2);
  padding: var(--bk-section-pad) var(--bk-gutter);
}
.bk-section--alt {
  background: var(--bk-surface-1);
}
.bk-section--cta {
  padding-block: var(--bk-section-pad-cta);
}
.bk-section__inner {
  max-width: var(--bk-content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-xl);
}
.bk-section__head {
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-s);
}
.bk-section__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--bk-gap-l);
}
.bk-section__split {
  max-width: var(--bk-content-max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 40px 64px;
}
.bk-section__split > * {
  flex: 1 1 340px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-m);
}
.bk-section__center {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 22px;
}

/* ---------- bk-hero (Hintergrund „Speed") ---------- */
.bk-hero {
  position: relative;
  overflow: hidden;
  background: var(--bk-surface-hero);
}
.bk-hero__speed {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.bk-hero__speed line {
  stroke-linecap: round;
  stroke: var(--bk-graphite);
}
.bk-hero__speed .bk-hero__speed-dim {
  stroke: var(--bk-surface-offer);
}
.bk-hero__speed .bk-hero__speed-accent {
  stroke: var(--bk-orange);
  opacity: var(--bk-speed-accent-opacity);
}
.bk-hero__inner {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px var(--bk-gutter) 80px;
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-xl);
}
.bk-hero__logo {
  height: 34px;
  width: auto;
  align-self: flex-start;
}
.bk-hero__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 48px 64px;
  align-items: flex-start;
}
.bk-hero__intro {
  flex: 1 1 420px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding-top: var(--bk-gap-s);
}
.bk-hero__intro .bk-text {
  font-size: var(--bk-size-lead);
  color: var(--bk-text-muted);
  max-width: 480px;
}
.bk-hero--center .bk-hero__inner {
  min-height: 100vh;
  justify-content: center;
  align-items: flex-start;
}

/* ---------- Typografie: bk-kicker, bk-h1, bk-h2, bk-text ---------- */
.bk-kicker {
  margin: 0;
  font-family: var(--bk-font-label);
  font-weight: 600;
  font-size: var(--bk-size-kicker);
  letter-spacing: var(--bk-tracking-kicker);
  text-transform: uppercase;
  color: var(--bk-text-label);
}
.bk-h1 {
  margin: 0;
  font-family: var(--bk-font-heading);
  font-weight: 400;
  font-size: var(--bk-size-h1);
  line-height: 1.04;
  color: var(--bk-text-strong);
}
.bk-h2 {
  margin: 0;
  font-family: var(--bk-font-heading);
  font-weight: 400;
  font-size: var(--bk-size-h2);
  line-height: 1.1;
  color: var(--bk-text-strong);
}
.bk-text {
  margin: 0;
  color: var(--bk-text);
}
.bk-text--muted {
  color: var(--bk-text-muted);
}
.bk-text--lead {
  font-size: var(--bk-size-lead);
  color: var(--bk-text-muted);
}
.bk-h1__nowrap {
  white-space: nowrap;
}

/* ---------- bk-checklist ---------- */
.bk-checklist {
  margin: var(--bk-gap-xs) 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-s);
  font-size: var(--bk-size-input);
  color: var(--bk-text);
}
.bk-checklist li {
  display: flex;
  gap: var(--bk-gap-s);
  align-items: flex-start;
}
.bk-checklist svg {
  flex: none;
  margin-top: 3px;
  color: var(--bk-orange);
}

/* ---------- bk-button (--primary · --secondary) ---------- */
.bk-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bk-gap-s);
  min-height: var(--bk-control);
  padding: 0 var(--bk-gap-l);
  border: var(--bk-line) solid transparent;
  font-family: var(--bk-font-label);
  font-weight: 700;
  font-size: var(--bk-size-kicker);
  text-decoration: none;
  cursor: pointer;
}
.bk-button--primary {
  min-height: 60px;
  padding: 0 36px;
  font-size: var(--bk-size-lead);
  background: var(--bk-orange);
  color: var(--bk-anthracite);
  clip-path: polygon(
    var(--bk-bevel-button) 0,
    100% 0,
    100% calc(100% - var(--bk-bevel-button)),
    calc(100% - var(--bk-bevel-button)) 100%,
    0 100%,
    0 var(--bk-bevel-button)
  );
}
.bk-button--secondary {
  background: transparent;
  color: var(--bk-text-strong);
  border-color: var(--bk-line-secondary);
}

/* ---------- bk-card (--numbered 01–03 · --lettered A–C) ---------- */
.bk-card {
  background: var(--bk-surface-2);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.bk-card--numbered {
  clip-path: polygon(
    var(--bk-bevel-card) 0,
    100% 0,
    100% calc(100% - var(--bk-bevel-card)),
    calc(100% - var(--bk-bevel-card)) 100%,
    0 100%,
    0 var(--bk-bevel-card)
  );
}
.bk-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--bk-text);
}
.bk-card__num {
  font-family: var(--bk-font-heading);
  font-size: 40px;
  line-height: 1;
  color: var(--bk-line-divider);
}
.bk-card__title {
  margin: 0;
  font-family: var(--bk-font-label);
  font-weight: 700;
  font-size: var(--bk-size-h3);
  color: var(--bk-text-strong);
}
.bk-card__text {
  margin: 0;
  color: var(--bk-text-label);
}
.bk-card--lettered {
  flex-direction: row;
  gap: var(--bk-gap-l);
  padding: 22px 0;
  background: transparent;
  border-block: var(--bk-line) solid var(--bk-graphite);
}
.bk-card--lettered .bk-card__num {
  width: 32px;
  flex: none;
  font-size: var(--bk-gap-l);
  line-height: 1.55;
  color: var(--bk-orange);
}
.bk-card--lettered .bk-card__title {
  font-size: var(--bk-gap-l);
}

/* ---------- bk-chat (Kopf mit KK-Icon, Titel, Unterzeile) ---------- */
.bk-chat {
  flex: 1 1 520px;
  max-width: var(--bk-chat-max);
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bk-surface-card);
  border: var(--bk-line) solid var(--bk-line-card);
  box-shadow: var(--bk-shadow-card);
  scroll-margin-top: var(--bk-gap-l);
}
.bk-chat__head {
  display: flex;
  align-items: center;
  gap: var(--bk-gap-s);
  padding: var(--bk-gap-m) 16px var(--bk-gap-m) 22px;
  border-bottom: var(--bk-line) solid var(--bk-line-divider);
}
.bk-chat__icon {
  width: 36px;
  height: 36px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bk-anthracite);
  color: var(--bk-orange);
}
.bk-chat__icon svg {
  width: 24px;
  height: auto;
}
.bk-chat__heading {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  min-width: 0;
}
.bk-chat__title {
  margin: 0;
  font-family: var(--bk-font-label);
  font-weight: 700;
  font-size: 16px;
  color: var(--bk-text-strong);
}
.bk-chat__sub {
  font-size: var(--bk-size-note);
  color: var(--bk-text-muted);
}
.bk-chat__log {
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-m);
  padding: var(--bk-gap-l) clamp(12px, 2cqi, 22px);
  font-size: var(--bk-size-chat);
  line-height: var(--bk-line-chat);
  max-height: min(70vh, 640px);
  overflow-y: auto;
}
.bk-chat__examples {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 6px clamp(12px, 2cqi, 22px) var(--bk-gap-m);
}
.bk-chat__log:empty,
.bk-chat__examples[hidden],
.bk-chat__replies[hidden] {
  display: none;
}
.bk-chat__replies {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bk-gap-xs);
  padding: 0 clamp(12px, 2cqi, 22px) var(--bk-gap-m);
}

/* ---------- bk-bubble (--bot · --user) ---------- */
.bk-bubble {
  max-width: 88%;
  padding: 10px var(--bk-gap-m);
  overflow-wrap: anywhere;
}
.bk-bubble p {
  margin: 0;
}
.bk-bubble p + p,
.bk-bubble p + .bk-note {
  margin-top: var(--bk-gap-xs);
}
.bk-bubble--bot {
  align-self: flex-start;
  background: var(--bk-surface-bot);
  color: var(--bk-text-strong);
}
.bk-bubble--user {
  align-self: flex-end;
  max-width: 85%;
  background: var(--bk-surface-user);
  color: var(--bk-on-user);
  font-weight: 500;
  white-space: pre-wrap;
}

/* ---------- bk-chip: Beispiel-Fragen und Antwort-Knöpfe ---------- */
.bk-chip {
  align-self: flex-start;
  min-height: var(--bk-target);
  padding: var(--bk-gap-xs) var(--bk-gap-m);
  background: transparent;
  border: var(--bk-line) solid var(--bk-line-chip);
  color: var(--bk-text-strong);
  font-family: var(--bk-font-body);
  font-size: var(--bk-size-chat);
  text-align: left;
  cursor: pointer;
}
.bk-chip:hover {
  border-color: var(--bk-line-secondary);
}
.bk-chip:disabled {
  cursor: default;
  color: var(--bk-text-label);
}

/* ---------- bk-composer: Textfeld + Senden (ohne Kamera) ---------- */
.bk-composer {
  display: flex;
  gap: var(--bk-gap-xs);
  align-items: center;
  margin: 0;
  padding: 0 clamp(12px, 2cqi, 22px) var(--bk-gap-m);
}
.bk-composer__input {
  flex: 1;
  min-width: 0;
  height: var(--bk-control);
  padding: 0 var(--bk-gap-m);
  background: var(--bk-surface-input);
  border: var(--bk-line) solid var(--bk-line-input);
  color: var(--bk-text-strong);
  font-family: var(--bk-font-body);
  font-size: var(--bk-size-input);
}
.bk-composer__input::placeholder {
  color: var(--bk-text-label);
}
.bk-composer__send {
  width: var(--bk-control);
  height: var(--bk-control);
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bk-orange);
  border: none;
  color: var(--bk-anthracite);
  cursor: pointer;
}

/* ---------- bk-disclaimer · vorläufig auch bk-note (🔎) und bk-status (Designer D1) ---------- */
.bk-disclaimer,
.bk-note,
.bk-status {
  margin: 0;
  font-size: var(--bk-size-note);
  line-height: 1.45;
  color: var(--bk-text-muted);
}
.bk-disclaimer {
  padding: 0 22px 18px;
}
.bk-status {
  padding: 0 22px var(--bk-gap-s);
}
.bk-status[hidden] {
  display: none;
}

/* ---------- bk-steps: Anleitung — vorläufig wie bk-bubble--bot mit Zeilen (Designer D1) ---------- */
.bk-steps {
  align-self: stretch;
  max-width: none;
}

/* ---------- bk-link: Link im Chat-Text und in Fließtexten ---------- */
.bk-link {
  color: var(--bk-orange-light);
  text-underline-offset: 2px;
  overflow-wrap: anywhere;
}

/* ---------- bk-footer ---------- */
.bk-footer {
  border-top: var(--bk-line) solid var(--bk-graphite);
  padding: 40px var(--bk-gutter) var(--bk-gap-xl);
  background: var(--bk-surface-2);
}
.bk-footer__inner {
  max-width: var(--bk-content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--bk-gap-s);
}
.bk-footer__logo {
  height: 24px;
  width: auto;
  align-self: flex-start;
}
.bk-footer__text {
  margin: 0;
  max-width: 480px;
  font-size: var(--bk-size-kicker);
  color: var(--bk-text-footer);
}

/* ---------- bk-comingsoon: vorläufig aus bk-hero + Logo (Designer D1) ---------- */
.bk-comingsoon {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.bk-comingsoon__logo {
  height: 56px;
  width: auto;
  align-self: flex-start;
}