/* ==========================================================================
   TUOIL — site footer
   Dense olive plate closing the page, same fill as the menu panel and the
   CTA block so the dark surfaces read as one material.
   ========================================================================== */

/* One step deeper than the CTA plate above it: two dark planes in a row need
   an edge, or the page ends in one undifferentiated mass. */
.c-footer {
  background: var(--c-base-deep);
  color: var(--c-on-dark);
  font-size: var(--fs-small);
}

.c-footer__inner {
  display: grid;
  grid-template-columns: 3fr 6fr 3fr;
  gap: var(--grid-gutter);
  padding-block: var(--sp-8) var(--sp-6);
}

.c-footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gutter);
}

/* --- Brand column ---------------------------------------------------------- */
.c-footer__brand .logo__svg,
.c-footer__brand .logo__img {
  height: 36px;
  margin-bottom: var(--sp-3);
}

.c-footer__brand .logo__word {
  display: block;
  margin-bottom: var(--sp-3);
  font-size: 1.5rem;
}

.c-footer__tagline {
  max-width: 34ch;
  margin-bottom: var(--sp-4);
  color: var(--c-on-dark-muted);
  line-height: var(--lh-body);
}

/* --- Link columns ---------------------------------------------------------- */
.c-footer__title {
  margin-bottom: var(--sp-3);
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  color: var(--c-on-dark-muted);
}

.c-footer__list li + li { margin-top: var(--sp-1); }

.c-footer__list a,
.c-footer__reach a,
.c-footer__legal-nav a {
  text-decoration: none;
  color: var(--c-on-dark);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.c-footer__list a:hover,
.c-footer__reach a:hover,
.c-footer__legal-nav a:hover {
  border-bottom-color: currentColor;
}

/* --- Contacts -------------------------------------------------------------- */
.c-footer__address {
  margin-bottom: var(--sp-3);
  color: var(--c-on-dark-muted);
  line-height: 1.5;
}

.c-footer__label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--c-on-dark-muted);
  opacity: 0.75;
}

.c-footer__reach { line-height: 1.7; }

/* --- Bottom bar ------------------------------------------------------------ */
.c-footer__bar {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.c-footer__bar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  padding-block: var(--sp-3);
  color: var(--c-on-dark-muted);
  font-size: var(--fs-caption);
}

.c-footer__legal { margin: 0; }

.c-footer__legal-nav {
  display: flex;
  gap: var(--sp-3);
}

/* --- Adaptive -------------------------------------------------------------- */
@media (max-width: 1280px) {
  /* brand and contacts share the top row, the link columns run underneath */
  .c-footer__inner { grid-template-columns: 1fr 1fr; row-gap: var(--sp-6); }
  .c-footer__nav { grid-column: 1 / -1; order: 1; }
}

@media (max-width: 768px) {
  .c-footer__nav {
    grid-template-columns: 1fr 1fr;
    row-gap: var(--sp-4);
  }
}

@media (max-width: 600px) {
  /* one column: back to document order — brand, links, contacts */
  .c-footer__inner {
    grid-template-columns: 1fr;
    padding-block: var(--sp-6) var(--sp-5);
    row-gap: var(--sp-5);
  }
  .c-footer__nav { order: 0; }
  .c-footer__brand .btn { width: 100%; }
}