/* ─── Page shell ─── */
body {
  min-height: 100vh;
  background: #000;
}

.ubf-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 48px;
}

.ubf-back {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.ubf-back:hover {
  color: #fff;
}

.ubf-back svg {
  flex-shrink: 0;
}

.ubf-brand {
  height: 28px;
  width: auto;
  display: block;
  filter: brightness(0) saturate(100%) invert(100%) sepia(1%) saturate(7493%) hue-rotate(301deg) brightness(105%) contrast(101%);
}

/* ─── Main ─── */
.ubf-main {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 40px 96px;
}

/* ─── Hero ─── */
.ubf-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 28px;
  margin-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ubf-hero__tag {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.ubf-hero__product {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.1;
  margin-bottom: 6px;
}

.ubf-hero__size {
  font-size: 1rem;
  color: var(--color-muted);
  font-weight: 400;
}

.ubf-hero__reg {
  margin-top: 12px;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.04em;
}

.ubf-hero__badges {
  display: flex;
  gap: 20px;
  flex-shrink: 0;
  align-items: flex-end;
}

.ubf-badge {
  display: flex;
  flex-direction: column;
  gap: 13px;
  align-items: center;
}

.ubf-badge__icon {
  height: 36px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 1;
}

.ubf-badge .grade-badge {
  font-size: 1.05rem;
  padding: 4px 12px;
  border-radius: 2px;
}

.ubf-badge__db {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: -2px;
}

/* ─── Sections ─── */
.ubf-section {
  margin-bottom: 40px;
}

.ubf-section__heading {
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* ─── Info rows ─── */
.ubf-row {
  display: flex;
  align-items: baseline;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 11px 0;
}

.ubf-row:first-of-type {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.ubf-row__label {
  flex: 0 0 56%;
  font-size: .9rem;
  color: rgba(255, 255, 255, 0.85);
  padding-right: 20px;
  line-height: 1.4;
}

.ubf-row__value {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
}

.ubf-row__value .grade-badge {
  font-size: 0.88rem;
  padding: 3px 10px;
}

.ubf-row__value .ubf-muted {
  font-weight: 400;
  color: var(--color-muted);
  font-size: 0.8rem;
}

/* ─── EPREL block ─── */
.ubf-eprel {
  display: flex;
  align-items: center;
  gap: 28px;
  background: rgba(234, 0, 41, 0.05);
  border: 1px solid rgba(234, 0, 41, 0.18);
  border-radius: 3px;
  padding: 22px 28px;
  margin-bottom: 36px;
}

.ubf-eprel__label {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 6px;
}

.ubf-eprel__no {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.ubf-eprel__url {
  margin-top: 8px;
  font-size: 0.75rem;
}

.ubf-eprel__url a {
  color: var(--color-primary);
  text-decoration: none;
  word-break: break-all;
}

.ubf-eprel__url a:hover {
  text-decoration: underline;
}

/* ─── Contact row (address + contact side by side) ─── */
.ubf-contact-row {
  display: flex;
  gap: 24px;
  align-items: stretch;
}

.ubf-section--flex {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.ubf-section--flex .ubf-addr-grid--single {
  flex: 1;
}

.ubf-section--flex .ubf-addr-card {
  height: 100%;
  box-sizing: border-box;
}

.ubf-addr-grid--single {
  grid-template-columns: 1fr;
}

/* ─── Address grid ─── */
.ubf-addr-grid {
  display: flex;
}

.ubf-addr-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 3px;
  padding: 18px 20px;
  width: 100%;
  flex: 1 1;
}

.ubf-addr-card__title {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 10px;
}

.ubf-addr-card p {
  font-size: 0.8rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.6);
}

.ubf-addr-card a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
}

.ubf-addr-card a:hover {
  color: #fff;
  text-decoration: underline;
}

/* ─── Error ─── */
.ubf-error {
  text-align: center;
  padding: 100px 40px;
}

.ubf-error__code {
  font-size: 5rem;
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.25;
  line-height: 1;
}

.ubf-error__msg {
  font-size: 1rem;
  color: var(--color-muted);
  margin-top: 20px;
}

.ubf-error__back {
  display: inline-block;
  margin-top: 32px;
  color: var(--color-primary);
  text-decoration: none;
  border: 1px solid rgba(234, 0, 41, 0.5);
  padding: 10px 28px;
  border-radius: 2px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.2s, border-color 0.2s;
}

.ubf-error__back:hover {
  background: rgba(234, 0, 41, 0.08);
  border-color: var(--color-primary);
}

@media (max-width: 480px) {
  .ubf-brand {
    height: 18px;
  }
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .ubf-header {
    padding: 14px 20px;
  }

  .ubf-main {
    padding: 36px 20px 72px;
  }

  .ubf-hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .ubf-hero__badges {
    align-items: center;
  }

  .ubf-row__label {
    flex: 0 0 50%;
    font-size: 0.75rem;
  }

  .ubf-addr-grid {
    grid-template-columns: 1fr;
  }

  .ubf-contact-row {
    flex-direction: column;
    gap: 0;
  }

  .ubf-section--flex {
    margin-bottom: 32px;
  }

  .ubf-eprel {
    flex-direction: column;
    gap: 16px;
  }
}