:root {
  --bart-ink: #111827;
  --bart-muted: #5b6676;
  --bart-line: #dbe3ea;
  --bart-bg: #f5f7f9;
  --bart-panel: #ffffff;
  --bart-dark: #162433;
  --bart-dark-soft: #21364a;
  --bart-red: #c8202f;
  --bart-red-dark: #a81725;
  --bart-yellow: #f7c948;
  --bart-shadow: 0 22px 55px rgba(17, 24, 39, .14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--bart-ink);
  background: var(--bart-bg);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.bart-lp {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(245, 247, 249, .25), var(--bart-bg) 740px),
    radial-gradient(circle at 82% 12%, rgba(200, 32, 47, .15), transparent 28rem);
}

.bart-hero {
  position: relative;
  overflow: hidden;
  min-height: 690px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(12, 23, 35, .9), rgba(12, 23, 35, .72) 48%, rgba(12, 23, 35, .2)),
    url("https://bzw6v7.myrdbx.io/wp-content/uploads/2026/05/Saniert.jpg") center / cover;
}

.bart-hero__inner,
.bart-section,
.bart-footer {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.bart-hero__inner {
  position: relative;
  padding: 34px 0 90px;
}

.bart-brandbar {
  display: inline-flex;
  align-items: center;
  max-width: 720px;
  gap: 16px;
  padding: 12px 16px;
  color: #fff;
  text-decoration: none;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.bart-brandbar img {
  width: 110px;
  height: 54px;
  object-fit: contain;
  padding: 8px;
  background: #fff;
  border-radius: 6px;
}

.bart-brandbar strong,
.bart-brandbar span {
  display: block;
}

.bart-brandbar > div {
  min-width: 0;
}

.bart-brandbar span {
  color: rgba(255, 255, 255, .78);
  font-size: .93rem;
  overflow-wrap: anywhere;
}

.bart-hero h1 {
  max-width: 780px;
  margin: 96px 0 22px;
  font-size: clamp(2.55rem, 6vw, 5.8rem);
  line-height: .96;
  letter-spacing: 0;
}

.bart-hero__copy {
  max-width: 680px;
  margin: 0;
  color: rgba(255, 255, 255, .86);
  font-size: 1.18rem;
}

.bart-actions,
.bart-proofline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.bart-actions {
  margin-top: 34px;
}

.bart-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 13px 22px;
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, background-color .18s ease, color .18s ease;
}

.bart-btn:hover {
  transform: translateY(-1px);
}

.bart-btn--primary {
  color: #fff;
  background: var(--bart-red);
}

.bart-btn--primary:hover {
  background: var(--bart-red-dark);
}

.bart-btn--secondary {
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .28);
}

.bart-proofline {
  margin-top: 48px;
}

.bart-google-rating {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  padding: 11px 14px;
  color: #fff;
  text-decoration: none;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 8px;
  font-weight: 900;
}

.bart-google-rating__score {
  font-size: .98rem;
}

.bart-google-rating__stars {
  color: var(--bart-yellow);
  letter-spacing: 0;
}

.bart-google-rating__text {
  color: rgba(255, 255, 255, .92);
}

.bart-proofline span {
  padding: 9px 13px;
  color: rgba(255, 255, 255, .88);
  background: rgba(255, 255, 255, .12);
  border-radius: 999px;
}

.bart-section {
  padding: 86px 0;
}

.bart-section__head {
  max-width: 760px;
  margin-bottom: 34px;
}

.bart-eyebrow {
  margin: 0 0 10px;
  color: var(--bart-yellow);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.bart-eyebrow--dark {
  color: var(--bart-red);
}

h2,
h3,
p {
  overflow-wrap: anywhere;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3.45rem);
  line-height: 1.05;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  line-height: 1.15;
}

.bart-section__head p:not(.bart-eyebrow),
.bart-split p,
.bart-video__copy p,
.bart-formwrap > div p {
  color: var(--bart-muted);
  font-size: 1.05rem;
}
.bart-section--dark .bart-note {
  color: #273445;
  background: #fff4d6;
  border-color: var(--bart-yellow);
}
.bart-cardgrid {
  display: grid;
  gap: 22px;
}

.bart-cardgrid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.bart-cardgrid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.bart-card,
.bart-media-card,
.bart-steps article,
.bart-trust article,
.bart-form,
.bart-video__box,
details {
  background: var(--bart-panel);
  border: 1px solid var(--bart-line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(17, 24, 39, .06);
}

.bart-card {
  padding: 28px;
}

.bart-card--emergency {
  border-color: rgba(200, 32, 47, .45);
  box-shadow: 0 18px 40px rgba(200, 32, 47, .12);
}

.bart-card__tag {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 6px 10px;
  color: var(--bart-red);
  background: rgba(200, 32, 47, .08);
  border-radius: 999px;
  font-weight: 800;
  font-size: .78rem;
}

.bart-card p {
  color: var(--bart-muted);
}

.bart-card a,
.bart-video__link {
  color: var(--bart-red);
  font-weight: 900;
  text-decoration: none;
}

.bart-trust {
  padding-top: 0;
}

.bart-trust__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.bart-trust article {
  padding: 22px;
}

.bart-trust strong {
  display: block;
  margin-bottom: 6px;
  color: var(--bart-red);
  font-size: 1.35rem;
}

.bart-trust span {
  color: var(--bart-muted);
}

.bart-section--dark {
  width: 100%;
  max-width: none;
  color: #fff;
  background: linear-gradient(135deg, var(--bart-dark), var(--bart-dark-soft));
}

.bart-section--dark > * {
  width: min(1160px, calc(100% - 36px));
  margin-inline: auto;
}

.bart-section--dark .bart-split,
.bart-formwrap {
  width: min(1160px, calc(100% - 36px));
}

.bart-section--dark p {
  color: rgba(255, 255, 255, .78);
}

.bart-split,
.bart-formwrap,
.bart-video__box {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 42px;
  align-items: center;
}

.bart-checklist {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bart-checklist li {
  position: relative;
  padding: 16px 18px 16px 46px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 8px;
}

.bart-checklist li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 21px;
  width: 10px;
  height: 10px;
  background: var(--bart-yellow);
  border-radius: 80%;
}

.bart-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.bart-steps article {
  padding: 24px;
}

.bart-steps span {
  display: block;
  margin-bottom: 24px;
  color: var(--bart-red);
  font-size: 2rem;
  font-weight: 900;
}

.bart-steps p,
.bart-media-card p {
  color: var(--bart-muted);
}

.bart-video__box {
  padding: 26px;
}

.bart-video__frame {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #0f1722;
  border-radius: 8px;
}

.bart-video__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bart-media-card {
  overflow: hidden;
}

.bart-media-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #dce3ea;
}

.bart-media-card div {
  padding: 20px;
}

.bart-media-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--bart-red);
  font-weight: 900;
}

.bart-form {
  padding: 28px;
  color: var(--bart-ink);
}

.bart-form__step {
  display: none;
}

.bart-form__step.is-active {
  display: grid;
  gap: 14px;
}

.bart-step-label {
  color: var(--bart-red);
  font-weight: 900;
}

.bart-form label {
  display: grid;
  gap: 7px;
  color: #2d3748;
  font-weight: 800;
}

.bart-form input,
.bart-form select,
.bart-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
  color: var(--bart-ink);
  background: #fff;
  border: 1px solid #cdd7e1;
  border-radius: 6px;
  font: inherit;
  font-weight: 400;
}

.bart-form textarea {
  resize: vertical;
}

.bart-consent {
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 10px;
  font-size: .92rem;
  line-height: 1.4;
}

.bart-consent input {
  width: 18px;
  min-height: 18px;
  margin-top: 2px;
}

.bart-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.bart-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  color: #273445;
  background: #fff4d6;
  border-left: 4px solid var(--bart-yellow);
  border-radius: 6px;
  font-weight: 700;
  line-height: 1.5;
}

.bart-form__status {
  min-height: 24px;
  margin: 16px 0 0;
  color: var(--bart-muted);
  font-weight: 800;
}

.bart-form__status.is-success {
  color: #147a42;
}

.bart-form__status.is-error {
  color: var(--bart-red);
}

.bart-faq {
  max-width: 900px;
}

details {
  margin-top: 12px;
  padding: 0;
}

summary {
  cursor: pointer;
  padding: 20px 24px;
  font-weight: 900;
}

details p {
  margin: 0;
  padding: 0 24px 22px;
  color: var(--bart-muted);
}

.bart-footer {
  display: grid;
  gap: 6px;
  padding: 34px 0 100px;
  color: var(--bart-muted);
  text-align: center;
}

.bart-footer strong,
.bart-footer a {
  color: var(--bart-ink);
}

.bart-sticky {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  display: flex;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--bart-shadow);
}

.bart-sticky a {
  padding: 13px 16px;
  color: #fff;
  background: var(--bart-dark);
  font-weight: 900;
  text-decoration: none;
}

.bart-sticky a + a {
  background: var(--bart-red);
}

@media (max-width: 900px) {
  .bart-cardgrid--two,
  .bart-cardgrid--three,
  .bart-trust__grid,
  .bart-steps,
  .bart-split,
  .bart-formwrap,
  .bart-video__box {
    grid-template-columns: 1fr;
  }

  .bart-trust__grid,
  .bart-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bart-hero {
    min-height: auto;
  }
}

@media (max-width: 620px) {
  .bart-hero__inner,
  .bart-section,
  .bart-section--dark > *,
  .bart-section--dark .bart-split,
  .bart-formwrap,
  .bart-footer {
    width: min(100% - 24px, 1160px);
  }

  .bart-hero__inner {
    padding-top: 18px;
  }

  .bart-brandbar {
    align-items: flex-start;
    width: 100%;
    gap: 12px;
    padding: 10px;
  }

  .bart-brandbar img {
    flex: 0 0 auto;
    width: 86px;
    height: 48px;
  }

  .bart-brandbar strong {
    font-size: .98rem;
    line-height: 1.15;
  }

  .bart-brandbar span {
    font-size: .86rem;
    line-height: 1.3;
  }

  .bart-hero h1 {
    margin-top: 70px;
  }

  .bart-actions,
  .bart-actions .bart-btn,
  .bart-sticky {
    width: 100%;
  }

  .bart-sticky a {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
    padding-inline: 10px;
    text-align: center;
  }

  .bart-btn {
    padding-inline: 14px;
  }

  .bart-trust__grid,
  .bart-steps {
    grid-template-columns: 1fr;
  }

  .bart-section {
    padding: 58px 0;
  }

  .bart-card,
  .bart-form,
  .bart-video__box {
    padding: 20px;
  }

  .bart-sticky {
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    max-width: 100vw;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-radius: 0;
  }

  .bart-sticky a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 0;
    padding: 14px 8px;
    text-align: center;
  }
}
.bart-section--dark .bart-note {
  color: #273445 !important;
  background: #fff4d6 !important;
  border-color: var(--bart-yellow);
}
.bart-brandbar img {
  width: 260px;
  height: auto;
  max-height: 95px;
  object-fit: contain;
  padding: 10px;
  background: #fff;
  border-radius: 6px;
}

.bart-evidence-grid,
.bart-clip-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.bart-evidence-card,
.bart-clip-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--bart-line);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(17, 24, 39, .1);
}

.bart-evidence-card--wide {
  grid-column: span 2;
}

.bart-evidence-card img,
.bart-clip-card video {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #0f172a;
}

.bart-clip-card video {
  aspect-ratio: 1 / 1;
}

.bart-evidence-card > div,
.bart-clip-card > div {
  padding: 20px;
}

.bart-evidence-card span,
.bart-clip-card span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--bart-red);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.bart-evidence-card p {
  margin-bottom: 0;
  color: var(--bart-muted);
}

@media (max-width: 620px) {
  .bart-brandbar img {
    width: 118px;
    height: auto;
    max-height: 68px;
  }
}

@media (max-width: 900px) {
  .bart-evidence-grid,
  .bart-clip-grid {
    grid-template-columns: 1fr;
  }

  .bart-evidence-card--wide {
    grid-column: auto;
  }
}