/**
 * ============================================================
 * Page – Reference
 * ============================================================
 * Zweck:
 * - globale Referenz-/Trust-Seite von Ballon Taxi
 * - standortübergreifende visuelle Referenzdarstellung
 * - vollständige Referenzübersicht ohne Logo-Wand
 * ============================================================
 */


/* ============================================================
   BASIS
   ============================================================ */

.bt-page-reference-duesseldorf {
  --bt-reference-pink: #e42c8c;
  --bt-reference-pink-dark: #bd1f71;
  --bt-reference-ink: #19191f;
  --bt-reference-muted: #66666d;
  --bt-reference-line: rgba(25, 25, 31, 0.1);
  --bt-reference-warm: #f6f4f2;
  --bt-reference-dark: #303036;
  --bt-reference-wide: 1465px;
  --bt-reference-content: 1200px;

  color: var(--bt-reference-ink);
}

.bt-page-reference-duesseldorf *,
.bt-page-reference-duesseldorf *::before,
.bt-page-reference-duesseldorf *::after {
  box-sizing: border-box;
}

.bt-reference-eyebrow {
  margin: 0 0 20px;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--bt-reference-pink);
}


/* ============================================================
   INTRO
   ============================================================ */

.bt-reference-intro {
  padding: clamp(95px, 9vw, 145px) 20px;
  background: #fff;
}

.bt-reference-intro__inner {
  width: min(var(--bt-reference-content), 100%);
  margin: 0 auto;
}

.bt-reference-intro h2 {
  margin: 0;
  max-width: 14ch;

  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 650;
  line-height: 1.02;
  letter-spacing: -0.045em;

  color: var(--bt-reference-ink);
}

.bt-reference-intro__lead {
  max-width: 760px;
  margin: 36px 0 0;

  font-size: clamp(1.08rem, 1.35vw, 1.28rem);
  line-height: 1.68;
  color: var(--bt-reference-muted);
}


/* ============================================================
   FEATURED TRUST – PINK
   ============================================================ */

.bt-reference-featured {
    padding: clamp(70px, 7vw, 100px) 20px;
    overflow: hidden;
  background:
    radial-gradient(
      circle at 92% 10%,
      rgba(255, 255, 255, 0.12),
      transparent 28%
    ),
    linear-gradient(
      145deg,
      #e42c8c 0%,
      #d32682 58%,
      #bd1f71 100%
    );
  color: #fff;
}

.bt-reference-featured__inner {
  width: min(var(--bt-reference-wide), 100%);
  margin: 0 auto;
}

.bt-reference-featured__head {
  width: min(900px, 100%);
  margin-bottom: clamp(40px, 4vw, 56px);
}

.bt-reference-featured__eyebrow {
  margin: 0 0 20px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.76);
}

.bt-reference-featured h2 {
  margin: 0;
  max-width: 12ch;

  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 650;
  line-height: 1.02;
  letter-spacing: -0.045em;

  color: #fff;
}

.bt-reference-featured__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));

  border-top: 1px solid rgba(255, 255, 255, 0.28);
  border-left: 1px solid rgba(255, 255, 255, 0.28);
}

.bt-reference-featured__item {
  min-height: 138px;
  padding: 28px 24px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-right: 1px solid rgba(255, 255, 255, 0.28);
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);

  font-size: clamp(1.05rem, 1.35vw, 1.35rem);
  font-weight: 650;
  line-height: 1.25;
  text-align: center;
  color: #fff;

  transition:
    background-color 0.28s ease,
    transform 0.28s ease;
}

.bt-reference-featured__item:hover {
  background: rgba(255, 255, 255, 0.09);
}


/* ============================================================
   DIRECTORY
   ============================================================ */

/* ============================================================
   OVERVIEW – WEISSER ÜBERGANG NACH DEM HERO
   ============================================================ */

.bt-reference-overview {
  padding: 42px 20px 46px;
  background: #fff;
}

.bt-reference-overview__inner {
  width: min(var(--bt-reference-wide), 100%);
  margin: 0 auto;
}

.bt-reference-overview__head {
  width: 100%;
}

.bt-reference-overview__head::before {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-bottom: 28px;
  border-radius: 999px;
  background: var(--bt-reference-pink);
}

.bt-reference-overview__intro {
  max-width: 900px;
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--bt-reference-muted);
}

.bt-reference-overview__head > p:last-child {
  max-width: 760px;
  margin: 26px 0 0;

  font-size: 1.08rem;
  line-height: 1.68;
  color: var(--bt-reference-muted);
}


/* ============================================================
   DIRECTORY – AB KATEGORIE 01
   ============================================================ */

.bt-reference-directory {
  width: min(1465px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(58px, 5vw, 76px) 35px clamp(100px, 9vw, 145px);
  background: var(--bt-reference-warm);
}

.bt-reference-directory__inner {
  width: 100%;
  margin: 0 auto;
}

/* ============================================================
   CATEGORY GROUPS
   ============================================================ */
.bt-reference-directory__eyebrow {
  margin: 0 0 44px;

  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.045em;
  color: var(--bt-reference-pink);
}

.bt-reference-group {
  padding: clamp(48px, 3vw, 72px) 0;
}
.bt-reference-group:first-child {
  padding-top: 0;
  border-top: 0;
}

.bt-reference-group:last-child {
  padding-bottom: 0;
}

.bt-reference-group__heading {
  width: 100%;
  margin-bottom: 34px;
}

.bt-reference-group__eyebrow {
  margin: 0 0 10px;

  font-size: 0.84rem;
      text-transform: uppercase;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.045em;
  color: var(--bt-reference-pink);
}

.bt-reference-group__heading h3 {
  margin: 0;
  max-width: 22ch;

  font-size: clamp(2rem, 3vw, 3.25rem);
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: -0.035em;

  word-break: normal;
  overflow-wrap: normal;
  hyphens: none;

  color: var(--bt-reference-ink);
}


.bt-reference-group__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.bt-reference-name {
  min-height: 92px;
  padding: 20px 22px;

  display: flex;
  align-items: center;

  border: 1px solid rgba(25, 25, 31, 0.09);
  border-radius: 18px;

  background: rgba(255, 255, 255, 0.66);

  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--bt-reference-ink);

  transition:
    transform 0.3s cubic-bezier(0.2, 0.75, 0.25, 1),
    border-color 0.3s ease,
    background-color 0.3s ease,
    box-shadow 0.3s ease;
}

.bt-reference-name:hover {
  transform: translateY(-3px);
  border-color: rgba(228, 44, 140, 0.24);
  background: #fff;
  box-shadow: 0 12px 28px rgba(25, 25, 31, 0.055);
}


/* ============================================================
   FINAL CTA
   Full-Width Abschluss / Startseiten-DNA
   ============================================================ */

.bt-reference-final {
  --bt-reference-pink: #e42c8c;
  --bt-reference-pink-dark: #bd1f71;

  position: relative;
  width: 100%;
  padding: clamp(92px, 10vw, 145px) 20px;
  overflow: hidden;

  background:
    radial-gradient(
      circle at 88% 18%,
      rgba(228, 44, 140, 0.12),
      transparent 30%
    ),
    linear-gradient(
      145deg,
      #4b4b50 0%,
      #303036 50%,
      #222228 100%
    );

  color: #fff;
}

.bt-reference-final::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -190px;
  top: -270px;
  border-radius: 50%;
  background: rgba(228, 44, 140, 0.16);
  filter: blur(1px);
  pointer-events: none;
}

.bt-reference-final__inner {
  position: relative;
  z-index: 2;

  width: min(1200px, 100%);
  margin: 0 auto;

  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(50px, 8vw, 110px);
  align-items: end;
}

.bt-reference-final__eyebrow {
  margin: 0 0 20px;

  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-transform: uppercase;

  color: var(--bt-reference-pink);
}

.bt-reference-final h2 {
  margin: 0;
  max-width: 12ch;

  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 650;
  line-height: 1.02;
  letter-spacing: -0.045em;

  color: #fff;
}

.bt-reference-final__copy > p:last-child {
  max-width: 60ch;
  margin: 30px 0 0;

  font-size: 1.05rem;
  line-height: 1.68;

  color: rgba(255, 255, 255, 0.68);
}

.bt-reference-final__actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bt-reference-final__button {
  min-height: 58px;
  padding: 16px 22px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 999px;

  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;

  transition:
    transform 0.22s ease,
    background-color 0.22s ease,
    border-color 0.22s ease;
}

.bt-reference-final__button:hover {
  transform: translateY(-3px);
}

.bt-reference-final__button--primary {
  background: var(--bt-reference-pink);
  color: #fff;
  border: 1px solid var(--bt-reference-pink);
}

.bt-reference-final__button--primary:hover {
  background: var(--bt-reference-pink-dark);
  border-color: var(--bt-reference-pink-dark);
  color: #fff;
}

.bt-reference-final__button--secondary {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.bt-reference-final__button--secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}


/* ============================================================
   TABLET
   ============================================================ */

@media (max-width: 1080px) {

  .bt-reference-featured__grid,
  .bt-reference-group__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .bt-reference-final__inner {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .bt-reference-final__actions {
    justify-content: flex-start;
  }
}


/* ============================================================
   MOBILE
   ============================================================ */

@media (max-width: 760px) {

.separate-containers .inside-article {
  padding-left: 10px;
  padding-right: 10px;
}

.bt-reference-intro,
.bt-reference-featured,
.bt-reference-overview,
.bt-reference-directory,
.bt-reference-final {
  padding-left: 18px;
  padding-right: 18px;
}

  .bt-reference-intro {
    padding-top: 82px;
    padding-bottom: 90px;
  }

.bt-reference-intro h2,
.bt-reference-featured h2,
.bt-reference-overview__head h2,
.bt-reference-final h2 {
  font-size: clamp(2.55rem, 11vw, 4rem);
}

  .bt-reference-featured {
    padding-top: 86px;
    padding-bottom: 92px;
  }

  .bt-reference-featured__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bt-reference-featured__item {
    min-height: 112px;
    padding: 22px 14px;
  }

  .bt-reference-directory {
    padding-top: 90px;
    padding-bottom: 96px;
  }

  .bt-reference-group {
    padding: 44px 0;
  }

  .bt-reference-group__heading {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    margin-bottom: 28px;
  }

  .bt-reference-group__heading h3 {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

  .bt-reference-group__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bt-reference-name {
    min-height: 82px;
    padding: 17px 16px;
    border-radius: 15px;
    font-size: 0.94rem;
  }

  .bt-reference-final {
    padding-top: 88px;
    padding-bottom: 94px;
  }

  .bt-reference-final__actions,
  .bt-reference-final__button {
    width: 100%;
  }
}


/* ============================================================
   SMALL MOBILE
   ============================================================ */

@media (max-width: 480px) {

  .bt-reference-featured__grid,
  .bt-reference-group__grid {
    grid-template-columns: 1fr;
  }

  .bt-reference-featured__item {
    min-height: 88px;
  }

  .bt-reference-name {
    min-height: 72px;
  }
}