/* =============================================================================
   assets/css/footer.css
   donotenter.ai site footer
   Colors: #CC0000 red | #F5C518 yellow | #2ECC40 green | #F5F5F5 white | #0A0A0A black
   Fonts:  Bebas Neue (logo) | Share Tech Mono (body)
   ============================================================================= */

/* --- Root tokens --- */
#dne-footer {
  --f-bg:           #0A0A0A;
  --f-border:       #CC0000;
  --f-heading:      #CC0000;
  --f-text:         #B0B0B0;
  --f-text-dim:     #555;
  --f-link:         #D0D0D0;
  --f-link-hover:   #F5C518;
  --f-logo:         #CC0000;
  --f-logo-hover:   #F5C518;
  --f-social:       #F5F5F5;
  --f-social-hover: #F5C518;
  --f-tag:          #444;
  --f-divider:      #1C1C1C;
  --f-accent:       #2ECC40;
  --f-font-mono:    'Share Tech Mono', monospace;
  --f-font-display: 'Bebas Neue', sans-serif;
}

/* --- Shell --- */
#dne-footer {
  background: var(--f-bg);
  border-top: 3px solid var(--f-border);
  padding: 3rem 0 0;
  font-family: var(--f-font-mono);
  margin-top: 4rem;
  color: var(--f-text);
}

.dne-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 2.5rem;
  display: flex;
  gap: 2.5rem 3rem;
  flex-wrap: wrap;
  align-items: flex-start;
}

/* --- Brand --- */
.dne-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 160px;
  flex-shrink: 0;
}

.dne-footer-logo {
  font-family: var(--f-font-display);
  font-size: 1.75rem;
  letter-spacing: 0.08em;
  color: var(--f-logo);
  text-decoration: none;
  transition: color 0.2s ease;
  line-height: 1;
}
.dne-footer-logo:hover {
  color: var(--f-logo-hover);
}

.dne-footer-tag {
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--f-tag);
  text-transform: uppercase;
}

.dne-footer-tagline {
  font-size: 0.68rem;
  color: var(--f-text-dim);
  line-height: 1.5;
  margin-top: 0.5rem;
  max-width: 180px;
}

/* --- Donate --- */
.dne-footer-donate {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 190px;
  flex-shrink: 0;
}

.dne-footer-donate img {
  border-radius: 6px;
  display: block;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.dne-footer-donate img:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

/* --- Link columns --- */
.dne-footer-cols {
  display: flex;
  gap: 2rem 3rem;
  flex-wrap: wrap;
  flex: 1;
}

.dne-footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 120px;
}

.dne-footer-heading {
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--f-heading);
  margin: 0 0 0.4rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid #1E1E1E;
}

.dne-footer-col a {
  font-size: 0.8rem;
  color: var(--f-link);
  text-decoration: none;
  transition: color 0.15s ease, padding-left 0.15s ease;
  position: relative;
  display: inline-block;
}

.dne-footer-col a::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--f-accent);
  border-radius: 2px;
  transition: height 0.15s ease;
}

.dne-footer-col a:hover {
  color: var(--f-link-hover);
  padding-left: 6px;
}
.dne-footer-col a:hover::before {
  height: 80%;
}

/* --- Bottom bar --- */
.dne-footer-bottom {
  border-top: 1px solid var(--f-divider);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 0.66rem;
  color: var(--f-text-dim);
  letter-spacing: 0.12em;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.dne-footer-copy a {
  color: var(--f-text-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}
.dne-footer-copy a:hover {
  color: var(--f-link-hover);
}

/* --- Social icons --- */
.dne-footer-social {
  display: flex;
  gap: 1.1rem;
  align-items: center;
}

.dne-footer-social a {
  color: var(--f-social);
  font-size: 1rem;
  text-decoration: none;
  transition: color 0.15s ease, transform 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.dne-footer-social a:hover {
  color: var(--f-social-hover);
  transform: translateY(-3px);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .dne-footer-inner {
    flex-direction: column;
    gap: 2rem;
  }
  .dne-footer-cols {
    gap: 1.5rem 2rem;
  }
  .dne-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dne-footer-col a,
  .dne-footer-col a::before,
  .dne-footer-social a,
  .dne-footer-donate img {
    transition: none;
  }
}