/* ==================================================

   CATALYST FOOTER — Shared footer component

   ================================================== */

.catalyst-footer {
  position: relative;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 24px 48px 0;
}

.catalyst-footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.catalyst-footer__columns {
  display: flex;
  gap: 56px;
}

.catalyst-footer__col-title {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.catalyst-footer__link {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 5px;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}

.catalyst-footer__link:hover {
  color: var(--carbon);
}

.catalyst-footer__newsletter {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

.catalyst-footer__newsletter-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.catalyst-footer__newsletter-form {
  display: flex;
  gap: 0;
}

.catalyst-footer__newsletter-input {
  font-family: var(--font);
  font-size: 14px;
  padding: 9px 18px;
  border: 1px solid var(--border-hover);
  border-right: none;
  border-radius: 24px 0 0 24px;
  background: transparent;
  color: var(--carbon);
  outline: none;
  width: 200px;
  transition: border-color 0.2s;
}

.catalyst-footer__newsletter-input::placeholder {
  color: var(--text-muted);
  font-weight: 300;
}

.catalyst-footer__newsletter-input:focus {
  border-color: var(--carbon);
}

.catalyst-footer__newsletter-btn {
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 9px 20px;
  border: 1px solid var(--carbon);
  border-radius: 0 24px 24px 0;
  background: var(--carbon);
  color: var(--bg);
  cursor: pointer;
  transition: all 0.2s;
}

.catalyst-footer__newsletter-btn:hover {
  background: transparent;
  color: var(--carbon);
  border-color: var(--catalyst-orange);
}

.catalyst-footer__newsletter-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.catalyst-footer__newsletter-btn.subscribed {
  background: var(--catalyst-teal);
  border-color: var(--catalyst-teal);
  color: #fff;
}

.catalyst-footer__newsletter-hint {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 0.01em;
}

.newsletter-error {
  display: none;
  font-size: 11px;
  font-weight: 400;
  color: #c0392b;
  margin-top: 6px;
}

.newsletter-error.visible {
  display: block;
}

/* ── Footer bottom — compact single-direction layout ── */
.catalyst-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 0;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
}

.catalyst-footer__brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.catalyst-footer__brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--carbon);
}

.catalyst-footer__social {
  display: flex;
  gap: 8px;
  align-items: center;
}

.catalyst-footer__social a {
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.catalyst-footer__social a:hover {
  color: var(--catalyst-orange);
  background: rgb(235, 98, 46, 0.08);
}

.catalyst-footer__social svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.catalyst-footer__brand-tagline {
  font-size: 12px;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 340px;
}

.catalyst-footer__copyright {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

/* ── Responsive — Tablet ── */
@media (width <= 1024px) {
  .catalyst-footer {
    padding: 28px 24px 0;
  }

  .catalyst-footer__top {
    flex-direction: column;
    gap: 24px;
  }

  .catalyst-footer__newsletter {
    order: -1;
    align-items: flex-start;
    width: 100%;
  }

  .catalyst-footer__columns {
    gap: 32px;
    flex-wrap: wrap;
  }
}

/* ── Responsive — iPad portrait / small tablet ── */
@media (width <= 860px) {
  .catalyst-footer {
    padding: 28px 20px 0;
  }

  .catalyst-footer__columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    width: 100%;
  }

  .catalyst-footer__newsletter-input {
    width: 160px;
  }
}

/* ── Responsive — Large mobile ── */
@media (width <= 600px) {
  .catalyst-footer {
    padding: 28px 16px 0;
    border-top-color: rgb(26, 26, 26, 0.12);
  }

  .catalyst-footer__top {
    gap: 20px;
    padding-bottom: 16px;
  }

  .catalyst-footer__newsletter {
    align-items: stretch;
    padding-top: 4px;
  }

  .catalyst-footer__newsletter-label {
    font-size: 11px;
    margin-bottom: 6px;
    color: var(--carbon);
    font-weight: 500;
  }

  .catalyst-footer__newsletter-form {
    width: 100%;
  }

  .catalyst-footer__newsletter-input {
    width: 100%;
    flex: 1;
    padding: 12px 18px;
    font-size: 14px;
    min-height: 44px;
  }

  .catalyst-footer__newsletter-btn {
    min-height: 44px;
    padding: 12px 20px;
    font-size: 13px;
  }

  .catalyst-footer__columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px 24px;
    width: 100%;
  }

  .catalyst-footer__col-title {
    font-size: 10px;
    margin-bottom: 10px;
    color: var(--carbon);
    font-weight: 600;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
  }

  .catalyst-footer__link {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 2px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .catalyst-footer__brand-tagline {
    font-size: 11px;
  }
}