/* Boden um Berlin — Site components. Built on top of bootstrap.min.css + tokens.css. */

/* ---------- Navigation ---------- */

.bum-navbar {
  background-color: var(--bum-white);
  border-bottom: 1px solid var(--border-subtle);
}

.bum-navbar .nav-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--bum-anthrazit);
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  transition: color var(--duration-fast) var(--ease-out);
}

.bum-navbar .nav-link:hover,
.bum-navbar .nav-link.active {
  color: var(--bum-eisblau);
}

/* Dropdown-Einträge: Hover/Active als 10%-Abschwächung der jeweiligen Gewerkfarbe statt Bootstrap-Standardblau */
.dropdown-item {
  --dropdown-accent: var(--bum-anthrazit);
  color: var(--bum-anthrazit);
  transition: background-color var(--duration-fast) var(--ease-out);
}

.dropdown-item--gebaeudemanagement { --dropdown-accent: var(--bum-gebaeudemanagement); }
.dropdown-item--winterdienst { --dropdown-accent: var(--bum-winterdienst); }
.dropdown-item--gruenanlagenpflege { --dropdown-accent: var(--bum-gruenanlagenpflege); }
.dropdown-item--wohnungssanierungen { --dropdown-accent: var(--bum-wohnungssanierungen); }

.dropdown-item:hover,
.dropdown-item:focus,
.dropdown-item:active,
.dropdown-item.active {
  background-color: color-mix(in srgb, var(--dropdown-accent) 10%, white);
  color: var(--bum-anthrazit);
}

/* ---------- Logo placeholder ---------- */

.bum-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.bum-logo__mark {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border: 2px solid var(--bum-anthrazit);
  border-radius: var(--radius-sm);
  background: var(--bum-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--bum-font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--bum-anthrazit);
}

.bum-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.bum-logo__name {
  font-family: var(--bum-font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--bum-anthrazit);
  text-transform: uppercase;
}

.bum-logo__tag {
  font-family: var(--bum-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  color: var(--bum-terrakotta);
  text-transform: uppercase;
}

/* ---------- Hero (flaches Farbfeld) ---------- */

.bum-hero {
  padding: 5.5rem 0 4.5rem;
  background-color: var(--bum-anthrazit);
  color: var(--bum-white);
}

.bum-hero--gebaeudemanagement { background-color: var(--bum-gebaeudemanagement); }
.bum-hero--winterdienst { background-color: var(--bum-winterdienst); }
.bum-hero--gruenanlagenpflege { background-color: var(--bum-gruenanlagenpflege); }
.bum-hero--wohnungssanierungen { background-color: var(--bum-wohnungssanierungen); }

.bum-hero .display-1,
.bum-hero .display-2,
.bum-hero .display-3,
.bum-hero .display-4 {
  color: var(--bum-white);
}

.bum-hero__eyebrow {
  font-family: var(--bum-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: color-mix(in srgb, var(--bum-white) 78%, transparent);
}

.bum-hero__lead {
  font-size: 1.15rem;
  max-width: 46rem;
  color: color-mix(in srgb, var(--bum-white) 92%, transparent);
}

/* ---------- Icon-Tiles (das eine wiederkehrende Icon-Treatment) ---------- */

.bum-icon-tile {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--tile-bg, var(--bum-schieferblau-tint));
  color: var(--tile-fg, var(--bum-schieferblau));
}

.bum-icon-tile svg {
  width: 28px;
  height: 28px;
}

.bum-icon-tile--gebaeudemanagement { --tile-bg: var(--bum-gebaeudemanagement-tint); --tile-fg: var(--bum-gebaeudemanagement); }
.bum-icon-tile--winterdienst { --tile-bg: var(--bum-winterdienst-tint); --tile-fg: var(--bum-winterdienst); }
.bum-icon-tile--gruenanlagenpflege { --tile-bg: var(--bum-gruenanlagenpflege-tint); --tile-fg: var(--bum-gruenanlagenpflege); }
.bum-icon-tile--wohnungssanierungen { --tile-bg: var(--bum-wohnungssanierungen-tint); --tile-fg: var(--bum-wohnungssanierungen); }

.bum-icon-tile--sm {
  width: 44px;
  height: 44px;
}

.bum-icon-tile--sm svg {
  width: 22px;
  height: 22px;
}

/* ---------- Cards (signature: weiß, Haarlinie, shadow-sm, 8px, 3px Akzent oben) ---------- */

.bum-service-card {
  background: var(--bum-white);
  border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--bum-anthrazit);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  height: 100%;
  transition: box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}

.bum-service-card--gebaeudemanagement { border-top-color: var(--bum-gebaeudemanagement); }
.bum-service-card--winterdienst { border-top-color: var(--bum-winterdienst); }
.bum-service-card--gruenanlagenpflege { border-top-color: var(--bum-gruenanlagenpflege); }
.bum-service-card--wohnungssanierungen { border-top-color: var(--bum-wohnungssanierungen); }

.bum-service-card:hover {
  box-shadow: var(--shadow-md);
}

/* ---------- Panels (größere Flächen, 14px Radius) ---------- */

.bum-panel {
  background: var(--bum-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ---------- Stamp / Status-Badge (Vertrauenssignale) ---------- */

.bum-stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bum-white);
  padding: 0.55rem 0.9rem;
  font-family: var(--bum-font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--bum-anthrazit);
}

/* ---------- Angebots-Modal (je Gewerkseite) ---------- */

.modal-content {
  border: none;
  border-top: 4px solid var(--modal-accent, var(--bum-anthrazit));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.modal-title {
  font-size: 1.3rem;
}

.modal-header {
  border-bottom: 1px solid var(--border-subtle);
}

.modal-footer {
  border-top: 1px solid var(--border-subtle);
}

/* ---------- Process steps ---------- */

.bum-step__number {
  font-family: var(--bum-font-display);
  font-size: 2.75rem;
  font-weight: 600;
  color: var(--bum-anthrazit);
  line-height: 1;
}

/* ---------- Image / logo placeholders ---------- */

.bum-placeholder {
  position: relative;
  overflow: hidden;
  background-color: var(--bum-surface);
  background-image: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--bum-placeholder-color, var(--bum-anthrazit)) 22%, var(--bum-surface)) 0px,
    color-mix(in srgb, var(--bum-placeholder-color, var(--bum-anthrazit)) 22%, var(--bum-surface)) 14px,
    color-mix(in srgb, var(--bum-placeholder-color, var(--bum-anthrazit)) 10%, var(--bum-surface)) 14px,
    color-mix(in srgb, var(--bum-placeholder-color, var(--bum-anthrazit)) 10%, var(--bum-surface)) 28px
  );
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.bum-placeholder--gebaeudemanagement { --bum-placeholder-color: var(--bum-gebaeudemanagement); }
.bum-placeholder--winterdienst { --bum-placeholder-color: var(--bum-winterdienst); }
.bum-placeholder--gruenanlagenpflege { --bum-placeholder-color: var(--bum-gruenanlagenpflege); }
.bum-placeholder--wohnungssanierungen { --bum-placeholder-color: var(--bum-wohnungssanierungen); }

.bum-placeholder__label {
  font-family: var(--bum-font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bum-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--bum-anthrazit);
  padding: 0.35rem 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  max-width: 90%;
  text-align: center;
}

.bum-placeholder__label svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

/* ---------- Legal placeholder marker ---------- */

mark.bum-platzhalter {
  background: var(--bum-terrakotta-tint);
  color: var(--bum-anthrazit);
  font-family: var(--bum-font-mono);
  font-size: 0.95em;
  padding: 0.05em 0.3em;
  border-radius: var(--radius-sm);
}

.bum-warnhinweis {
  border: 1px solid var(--bum-terrakotta);
  background: var(--bum-terrakotta-tint);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

/* ---------- Footer ---------- */

.bum-footer {
  background-color: var(--bum-anthrazit);
  color: var(--bum-white);
}

.bum-footer a {
  color: color-mix(in srgb, var(--bum-white) 88%, transparent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.bum-footer a:hover {
  color: var(--bum-eisblau);
  text-decoration: underline;
}

.bum-footer .bum-logo__mark {
  background: var(--bum-anthrazit);
  border-color: var(--bum-white);
  color: var(--bum-white);
}

.bum-footer .bum-logo__name { color: var(--bum-white); }

.bum-footer h6 {
  font-family: var(--bum-font-mono);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--bum-white) 65%, transparent);
}

/* ---------- Forms ---------- */

.form-control,
.form-select {
  border-color: var(--border-subtle);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--bum-anthrazit);
  box-shadow: 0 0 0 0.2rem var(--bs-focus-ring-color);
}

/* ---------- Buttons: lighten ~10% hover, darken ~15-18% press (gleicher Farbton) ---------- */

.btn-primary {
  --bs-btn-bg: var(--bum-anthrazit);
  --bs-btn-border-color: var(--bum-anthrazit);
  --bs-btn-hover-bg: color-mix(in srgb, var(--bum-anthrazit) 90%, white 10%);
  --bs-btn-hover-border-color: color-mix(in srgb, var(--bum-anthrazit) 90%, white 10%);
  --bs-btn-active-bg: color-mix(in srgb, var(--bum-anthrazit) 83%, black 17%);
  --bs-btn-active-border-color: color-mix(in srgb, var(--bum-anthrazit) 83%, black 17%);
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.btn-dark {
  --bs-btn-bg: var(--bum-anthrazit);
  --bs-btn-border-color: var(--bum-anthrazit);
  --bs-btn-hover-bg: color-mix(in srgb, var(--bum-anthrazit) 90%, white 10%);
  --bs-btn-hover-border-color: color-mix(in srgb, var(--bum-anthrazit) 90%, white 10%);
  --bs-btn-active-bg: color-mix(in srgb, var(--bum-anthrazit) 83%, black 17%);
  --bs-btn-active-border-color: color-mix(in srgb, var(--bum-anthrazit) 83%, black 17%);
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.btn-light {
  --bs-btn-bg: var(--bum-white);
  --bs-btn-border-color: var(--bum-white);
  --bs-btn-color: var(--bum-anthrazit);
  --bs-btn-hover-bg: color-mix(in srgb, var(--bum-white) 90%, black 10%);
  --bs-btn-hover-border-color: color-mix(in srgb, var(--bum-white) 90%, black 10%);
  --bs-btn-active-bg: color-mix(in srgb, var(--bum-white) 82%, black 18%);
  --bs-btn-active-border-color: color-mix(in srgb, var(--bum-white) 82%, black 18%);
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.btn-outline-dark,
.btn-outline-light {
  transition: background-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

/* ---------- Focus visibility ---------- */

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--bum-anthrazit);
  outline-offset: 2px;
}

/* ---------- Back to top (kein Pill — nur Buttons/Statusbadges dürfen voll rund sein) ---------- */

.bum-back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1030;
  display: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.bum-back-to-top.is-visible {
  display: inline-flex;
}

/* ---------- Reduced motion guard ---------- */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}