/* ==========================================================================
   Rodapé global (site público)
   ========================================================================== */

.arena-footer {
  position: relative;
  margin-top: auto;
  flex-shrink: 0;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(20, 24, 36, 0.6) 0%, var(--color-surface) 28%);
  border-top: 1px solid var(--color-border);
}

.arena-footer__glow {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: min(720px, 90vw);
  height: 200px;
  background: radial-gradient(ellipse, rgba(124, 92, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.arena-footer__inner {
  position: relative;
  padding-block: 3rem 2.5rem;
}

.arena-footer__grid {
  display: grid;
  gap: 2.5rem 2rem;
}

/* Marca */
.arena-footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 1rem;
  text-decoration: none;
  color: inherit;
}

.arena-footer__brand-link:hover .arena-footer__logo span {
  color: var(--color-accent-soft);
}

.arena-footer__brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.arena-footer__brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.arena-footer__logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
}

.arena-footer__logo span {
  color: var(--color-accent);
  transition: color var(--duration-fast) var(--ease-out);
}

.arena-footer__tagline {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.arena-footer__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-muted);
  max-width: 26rem;
  margin: 0 0 1.25rem;
}

.arena-footer__cta {
  display: inline-flex;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.arena-footer__trust {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.arena-footer__trust li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.arena-footer__trust svg {
  flex-shrink: 0;
  color: var(--color-accent-soft);
  opacity: 0.85;
}

/* Colunas */
.arena-footer__col-title {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
  margin: 0 0 1rem;
}

.arena-footer__col-title--social {
  margin-top: 1.75rem;
}

.arena-footer__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.arena-footer__links a {
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.arena-footer__links a:hover {
  color: var(--color-text);
}

.arena-footer__contact-lead {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-muted);
  margin: 0 0 1rem;
  max-width: 18rem;
}

.arena-footer__chat-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    border-color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.arena-footer__chat-btn:hover {
  border-color: rgba(124, 92, 255, 0.45);
  background: rgba(124, 92, 255, 0.08);
  transform: translateY(-1px);
}

.arena-footer__chat-btn svg {
  color: var(--color-accent-soft);
}

.arena-footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.arena-footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  transition:
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.arena-footer__social a:hover {
  border-color: rgba(124, 92, 255, 0.35);
  transform: translateY(-2px);
}

.arena-footer__social img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

/* Barra inferior */
.arena-footer__bar {
  border-top: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.2);
}

.arena-footer__bar-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-block: 1.25rem 1.75rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.arena-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.arena-footer__legal a {
  color: var(--color-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.arena-footer__legal a:hover {
  color: var(--color-accent-soft);
}

.arena-footer__legal-sep {
  opacity: 0.4;
  user-select: none;
}

.arena-footer__copy {
  margin: 0;
  line-height: 1.5;
}

.arena-footer__credit {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  margin-top: 0.35rem;
  font-size: 0.75rem;
  opacity: 0.75;
}

.arena-footer__dev-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 0.15rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  border: 1px solid rgba(94, 224, 255, 0.2);
  background: rgba(94, 224, 255, 0.07);
  font-weight: 600;
  color: inherit;
  text-decoration: none;
  opacity: 0.92;
  transition:
    color var(--duration-fast) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
}

.arena-footer__dev-link:hover {
  color: #5ee0ff;
  opacity: 1;
  border-color: rgba(94, 224, 255, 0.38);
  background: rgba(94, 224, 255, 0.12);
  text-decoration: none;
}

.arena-footer__dev-logo {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  object-fit: contain;
  opacity: 0.55;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.arena-footer__dev-link:hover .arena-footer__dev-logo {
  opacity: 0.9;
}

.arena-footer__copy a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--duration-fast) var(--ease-out);
}

.arena-footer__copy a:hover {
  color: var(--color-accent-soft);
}

@media (min-width: 640px) {
  .arena-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .arena-footer__brand {
    grid-column: 1 / -1;
  }

  .arena-footer__trust {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
  }
}

@media (min-width: 900px) {
  .arena-footer__grid {
    grid-template-columns: 1.35fr 0.75fr 0.75fr 1fr;
    gap: 2rem 2.5rem;
    align-items: start;
  }

  .arena-footer__brand {
    grid-column: auto;
  }

  .arena-footer__bar-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
  }

  .arena-footer__credit {
    display: inline-flex;
    align-items: center;
    margin-top: 0;
    margin-left: 0.5rem;
  }

  .arena-footer__credit::before {
    content: '·';
    margin-right: 0.5rem;
    opacity: 0.5;
  }
}

@media (min-width: 1100px) {
  .arena-footer__inner {
    padding-block: 3.5rem 2.75rem;
  }
}