/* =========================================================
   PROOF: Zahlen + Partner (compact band, Homepage)
   Uses only tokens from styles.css / layout.css
   ========================================================= */
.proof {
  padding: clamp(56px, 6vw, 96px) 0;
  background: var(--background);
  border-top: 0;
}

.proof__head {
  display: grid;
  gap: 1.375rem;
}

.proof__head h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.875rem, 3.65vw, 3.625rem);
  font-weight: 300;
  line-height: .94;
  letter-spacing: -.055em;
}

/* ---------- numbers ---------- */
.proof__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: clamp(28px, 3vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.proof__stat {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 4px 24px;
  border-left: 1px solid var(--line-strong);
}

.proof__stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.proof__value {
  display: flex;
  align-items: flex-start;
  margin: 0;
  color: var(--ink);
  font-size: clamp(44px, 4vw, 64px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.05em;
  font-variant-numeric: tabular-nums;
}

.proof__value small {
  margin-left: .04em;
  color: var(--orange);
  font-size: .5em;
  line-height: 1.2;
  letter-spacing: 0;
}

.proof__label {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.proof__label strong {
  display: block;
  color: var(--ink);
  font-size: 16px;
  font-weight: 500;
}

/* ---------- partners ---------- */
.proof__partners {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 40px;
  margin-top: clamp(28px, 3vw, 40px);
  padding-top: clamp(20px, 2vw, 28px);
  border-top: 1px solid var(--line);
}

.proof__partners-title {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.proof__logos {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 16px clamp(32px, 4.5vw, 72px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.proof__logo {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  text-decoration: none;
  transition: color .3s var(--ease-out);
}

.proof__logo img {
  display: block;
  width: auto;
  height: 40px;
  transition: transform .35s var(--ease-out);
}

.proof__logo:hover,
.proof__logo:focus-visible {
  color: var(--ink);
}

.proof__logo:hover img,
.proof__logo:focus-visible img {
  transform: scale(1.05);
}

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .proof__stat { flex-direction: column; align-items: flex-start; gap: 8px; }
}

@media (max-width: 640px) {
  .proof__stats { grid-template-columns: 1fr; gap: 18px; }
  .proof__stat,
  .proof__stat:first-child {
    flex-direction: row;
    align-items: center;
    padding: 0;
    border-left: 0;
  }

  /* Keep every stat label on the same vertical axis on mobile. */
  .proof__value {
    flex: 0 0 6rem;
    width: 6rem;
  }
  .proof__partners { flex-direction: column; align-items: flex-start; gap: 14px; }
  .proof__logos { flex-wrap: nowrap; gap: 24px; }
  .proof__logo img { height: 34px; }
  .proof__logo span { display: none; }
}

/* Shared five-logo partner network treatment — homepage + investors. */
.proof__partners--network {
  margin-top: clamp(24px, 2.6vw, 34px);
  padding-top: clamp(18px, 2vw, 24px);
  border-top: 0;
  column-gap: clamp(44px, 5vw, 76px);
}

.proof__partners--network .proof__partners-title {
  flex: 0 0 auto;
}

.proof__partners--network .proof__logos {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(22px, 2.7vw, 42px);
  align-items: center;
  width: 100%;
}

.proof__partners--network .proof__logos li {
  min-width: 0;
  overflow: hidden;
}

.proof__partners--network .proof__logo {
  justify-content: center;
}

.proof__partners--network .proof__logo img {
  display: block;
  width: auto;
  height: clamp(46px, 3.1vw, 54px);
  max-width: 100%;
  object-fit: contain;
}

.proof__partners--network .proof__logos li:nth-child(1) .proof__logo img {
  height: clamp(52px, 3.45vw, 60px);
}

.proof__partners--network .proof__logos li:nth-child(2) .proof__logo img {
  height: clamp(48px, 3.2vw, 56px);
}

.proof__partners--network .proof__logos li:nth-child(3) .proof__logo img {
  height: clamp(54px, 3.6vw, 62px);
}

.proof__partners--network .proof__logo--metergrid img {
  width: min(100%, 148px);
  height: auto;
}

.proof__partners--network .proof__logo--rwg img {
  width: min(100%, 158px);
  height: auto;
}

@media (max-width: 960px) {
  .proof__partners--network {
    row-gap: 26px;
  }

  .proof__partners--network .proof__logos {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .proof__partners--network {
    gap: 0;
    margin-top: 24px;
    padding-top: 20px;
  }

  .proof__partners--network .proof__partners-title {
    margin-bottom: 28px;
  }

  .proof__partners--network .proof__logos {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px 22px;
  }

  .proof__partners--network .proof__logo {
    width: 100%;
    min-height: 48px;
  }

  .proof__partners--network .proof__logo img {
    width: auto;
    max-width: 100%;
    height: 40px;
  }

  .proof__partners--network .proof__logos li:nth-child(1) .proof__logo img {
    height: 46px;
  }

  .proof__partners--network .proof__logos li:nth-child(2) .proof__logo img {
    height: 42px;
  }

  .proof__partners--network .proof__logos li:nth-child(3) .proof__logo img {
    height: 48px;
  }

  .proof__partners--network .proof__logo--metergrid img {
    width: min(100%, 116px);
    height: auto;
  }

  .proof__partners--network .proof__logo--rwg img {
    width: min(100%, 128px);
    height: auto;
  }
}