/* ════════════════════════════════════════════════════════════════════
   ritter & bader · Component styles
   Interactive states (hover / focus / disabled) and layout for the
   reusable primitives. Values transcribed exactly from the brand's
   Figma symbols. Consumed by the React components in components/**.
   ════════════════════════════════════════════════════════════════════ */

/* ── Button ─────────────────────────────────────────────────────────
   3 types × 3 states. 14px Bold, UPPERCASE, +1.5px tracking, 4px radius,
   16×30 padding. Primary hover darkens to Blau Dunkel; Secondary hover
   darkens its outline + text; disabled drops to 40% opacity. */
.rb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-weight: var(--fw-bold);
  font-size: var(--fs-small);
  letter-spacing: var(--ls-cta);
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
  border: 0;
  border-radius: var(--radius-control);
  padding: 16px 30px;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--dur-base) var(--ease-standard),
              box-shadow var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard);
}
.rb-btn--primary   { background: var(--rb-primary-blau); color: #fff; }
.rb-btn--primary:hover { background: var(--rb-blau-dunkel); }
.rb-btn--secondary { background: #fff; color: var(--rb-primary-blau); box-shadow: inset 0 0 0 1.5px var(--rb-primary-blau); }
.rb-btn--secondary:hover { color: var(--rb-blau-dunkel); box-shadow: inset 0 0 0 1.5px var(--rb-blau-dunkel); }
.rb-btn--white     { background: #fff; color: var(--rb-primary-blau); }
.rb-btn--white:hover { background: var(--rb-eis-hell); }
.rb-btn--block     { display: flex; width: 100%; }
.rb-btn:disabled, .rb-btn[aria-disabled="true"] { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.rb-btn:focus-visible { outline: 2px solid var(--rb-navy); outline-offset: 2px; }

/* ── Field wrapper + label + error ──────────────────────────────── */
.rb-field { display: flex; flex-direction: column; gap: 6px; }
.rb-field__label {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--rb-anthrazit);
}
.rb-field__label--required::after { content: "*"; color: var(--rb-error); margin-left: 2px; }
.rb-field__error { font-family: var(--font-sans); font-size: var(--fs-caption); color: var(--rb-error); }

/* ── Text input ─────────────────────────────────────────────────── */
.rb-input {
  box-sizing: border-box;
  width: 100%;
  height: 48px;
  padding: 0 12px;
  border: 0;
  border-radius: var(--radius-control);
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--rb-eisblau);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--rb-anthrazit);
  transition: box-shadow var(--dur-base) var(--ease-standard);
}
.rb-input::placeholder { color: var(--rb-grau); }
.rb-input:focus { outline: 0; box-shadow: inset 0 0 0 2px var(--rb-primary-blau); }
.rb-input--error { box-shadow: inset 0 0 0 1px var(--rb-error); color: var(--rb-error); }
.rb-input--error::placeholder { color: var(--rb-error); }

/* ── Select / Dropdown ──────────────────────────────────────────── */
.rb-select {
  box-sizing: border-box;
  width: 100%;
  height: 48px;
  padding: 0 40px 0 12px;
  border: 0;
  border-radius: var(--radius-control);
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%231E3A52' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  box-shadow: inset 0 0 0 1px var(--rb-eisblau);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--rb-anthrazit);
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  transition: box-shadow var(--dur-base) var(--ease-standard);
}
.rb-select:focus { outline: 0; box-shadow: inset 0 0 0 2px var(--rb-primary-blau); }
.rb-select[data-placeholder="true"] { color: var(--rb-grau); }
.rb-select--error { box-shadow: inset 0 0 0 1px var(--rb-error); color: var(--rb-error); }

/* ── Checkbox ───────────────────────────────────────────────────── */
.rb-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--rb-anthrazit);
  cursor: pointer;
  user-select: none;
}
.rb-check__native { position: absolute; opacity: 0; width: 0; height: 0; }
.rb-check__box {
  box-sizing: border-box;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border-radius: var(--radius-control);
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--rb-eisblau);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-fast) var(--ease-standard);
}
.rb-check__box svg { opacity: 0; transition: opacity var(--dur-fast); }
.rb-check__native:checked + .rb-check__box { background: var(--rb-primary-blau); box-shadow: inset 0 0 0 1px var(--rb-primary-blau); }
.rb-check__native:checked + .rb-check__box svg { opacity: 1; }
.rb-check__native:focus-visible + .rb-check__box { box-shadow: inset 0 0 0 2px var(--rb-primary-blau); }
.rb-check--error { color: var(--rb-error); }
.rb-check--error .rb-check__box { box-shadow: inset 0 0 0 1px var(--rb-error); }

/* ── Badge ──────────────────────────────────────────────────────── */
.rb-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-weight: var(--fw-bold);
  line-height: 1;
  white-space: nowrap;
  border-radius: var(--radius-control);
}
.rb-badge--keepcool { background: var(--rb-primary-blau); color: #fff; font-size: 12px; letter-spacing: var(--ls-cta); padding: 6px 14px; }
.rb-badge--stand    { background: #fff; color: var(--rb-navy); box-shadow: inset 0 0 0 2px var(--rb-navy); font-size: var(--fs-caption); letter-spacing: var(--ls-badge); padding: 8px 16px; }
.rb-badge--datum    { background: var(--rb-navy); color: #fff; font-size: var(--fs-caption); letter-spacing: var(--ls-badge); padding: 8px 16px; }

/* ── Cards ──────────────────────────────────────────────────────── */
.rb-card {
  box-sizing: border-box;
  border-radius: var(--radius-card);
  background: var(--surface-card);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur-base) var(--ease-standard),
              transform var(--dur-base) var(--ease-standard);
}
.rb-card--info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
}
.rb-card__accent { width: 50px; height: 4px; border-radius: var(--radius-pill); background: var(--rb-primary-blau); }
.rb-card__title { font: var(--fw-semibold) var(--fs-h3)/var(--lh-tight) var(--font-sans); color: var(--rb-navy); margin: 0; }
.rb-card__body  { font: var(--fw-regular) var(--fs-body)/var(--lh-body) var(--font-sans); color: var(--rb-anthrazit); margin: 0; }
.rb-card__link  { font: var(--fw-bold) 12px/1 var(--font-sans); letter-spacing: var(--ls-cta); text-transform: uppercase; color: var(--rb-primary-blau); text-decoration: none; }
.rb-card__link:hover { color: var(--rb-blau-dunkel); }

.rb-card--produkt { overflow: hidden; display: flex; flex-direction: column; }
.rb-card__image {
  height: 200px;
  background: var(--rb-eisblau);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--rb-grau);
  font-size: var(--fs-caption);
}
.rb-card__bar {
  background: var(--rb-primary-blau);
  color: #fff;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.rb-card__bar-title { font-weight: var(--fw-bold); font-size: 16px; letter-spacing: var(--ls-cta); text-transform: uppercase; }
.rb-card__bar-link  { font-weight: var(--fw-bold); font-size: 12px; letter-spacing: var(--ls-cta); text-transform: uppercase; color: #fff; text-decoration: none; }
.rb-card--interactive { cursor: pointer; }
.rb-card--interactive:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

/* ── Iceberg hero / layout rule ─────────────────────────────────────
   Icebergs anchored left + right, centre kept free for headline + CTA,
   over a Frost Weiß → Eisblau wash. */
.rb-iceberg {
  position: relative;
  overflow: hidden;
  background: var(--gradient-frost);
  padding: var(--space-80) var(--space-32);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-24);
}
.rb-iceberg__berg {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 22%;
  background-size: cover;
  background-position: center;
  opacity: 0.9;
  pointer-events: none;
}
.rb-iceberg__berg--left  { left: 0;  -webkit-mask-image: linear-gradient(90deg, #000 40%, transparent); mask-image: linear-gradient(90deg, #000 40%, transparent); }
.rb-iceberg__berg--right { right: 0; -webkit-mask-image: linear-gradient(270deg, #000 40%, transparent); mask-image: linear-gradient(270deg, #000 40%, transparent); }
.rb-iceberg__content { position: relative; z-index: 1; max-width: 640px; display: flex; flex-direction: column; align-items: center; gap: var(--space-24); }