/**
 * footer.css
 * БЭМ-блок: footer
 * Подвал сайта
 */

/* ===========================
   Block: footer
   =========================== */

.footer {
  background-color: var(--color-primary);
  color: var(--color-bg);
  padding: var(--spacing-xl) 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* ===========================
   Element: brand
   =========================== */

.footer__brand {
  text-align: center;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-bg);
  text-decoration: none;
}

.footer__logo:hover {
  color: var(--color-accent);
}

.footer__logo-icon {
  width: 36px;
  height: 36px;
}

.footer__description {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* ===========================
   Element: nav
   =========================== */

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.footer__nav-section {
  text-align: center;
}

.footer__nav-title {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer__nav-link {
  display: inline-block;
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__nav-link:hover {
  color: var(--color-accent);
}

/* ===========================
   Element: contacts
   =========================== */

.footer__contacts {
  text-align: center;
}

.footer__contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

.footer__contact-item:last-child {
  margin-bottom: 0;
}

.footer__contact-icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.footer__contact-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__contact-link:hover {
  color: var(--color-accent);
}

/* ===========================
   Element: social
   =========================== */

.footer__social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-bg);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.footer__social-link:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.footer__social-icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ===========================
   Element: bottom (copyright)
   =========================== */

.footer__bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer__copyright-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__copyright-link:hover {
  color: var(--color-accent);
}

/* ===========================
   Media Queries
   =========================== */

/* Small devices (480px and up) */
@media (min-width: 480px) {
  .footer__nav {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
  }

  .footer__nav-section {
    text-align: left;
    min-width: 140px;
  }
}

/* Medium devices (768px and up) */
@media (min-width: 768px) {
  .footer {
    padding: var(--spacing-2xl) 0;
  }

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .footer__brand {
    text-align: left;
    flex: 1;
    max-width: 280px;
  }

  .footer__nav {
    flex: 2;
    justify-content: flex-end;
    gap: var(--spacing-2xl);
  }

  .footer__contacts {
    text-align: left;
  }

  .footer__contact-item {
    justify-content: flex-start;
  }

  .footer__social {
    justify-content: flex-start;
  }

  .footer__bottom {
    width: 100%;
    margin-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}

/* Large devices (1024px and up) */
@media (min-width: 1024px) {
  .footer__inner {
    gap: var(--spacing-2xl);
  }

  .footer__brand {
    max-width: 320px;
  }

  .footer__logo {
    font-size: var(--font-size-xl);
  }

  .footer__description {
    font-size: var(--font-size-base);
  }
}

/* Extra large devices (1280px and up) */
@media (min-width: 1280px) {
  .footer {
    padding: var(--spacing-3xl) 0;
  }
}