/* ==========================================================================
   Responsive Adaptations & Media Queries for ivankot.ru
   ========================================================================== */

@media (max-width: 1080px) {
  .hero-card-unified {
    grid-template-columns: 240px 1fr;
    gap: 32px;
    padding: 30px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-item:nth-child(2) {
    border-right: none;
  }

  .stat-item:nth-child(3) {
    border-top: 1px solid var(--border-glass);
    padding-top: 16px;
  }

  .stat-item:nth-child(4) {
    border-top: 1px solid var(--border-glass);
    padding-top: 16px;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .profiles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 68px;
  }

  .hero-card-unified {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 32px 24px;
    gap: 28px;
  }

  .hero-intro-wrap {
    align-items: center;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-tagline {
    margin-left: auto;
    margin-right: auto;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 280px;
    height: calc(100vh - var(--header-height));
    background: rgba(7, 9, 14, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-glass);
    flex-direction: column;
    align-items: flex-start;
    padding: 36px 24px;
    gap: 20px;
    transition: right var(--transition-smooth);
    z-index: 1000;
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-toggle {
    display: block;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-title .greeting {
    font-size: 1.3rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .avatar-frame {
    width: 220px;
    height: 280px;
  }
}

@media (max-width: 640px) {
  .skills-grid,
  .projects-grid,
  .profiles-grid,
  .certs-grid {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 14px;
  }

  .stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .stat-item:nth-child(3),
  .stat-item:nth-child(4) {
    border-top: none;
    padding-top: 0;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .modal-container {
    padding: 24px;
  }

  .modal-meta-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .contact-channel-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .btn-copy {
    align-self: flex-end;
  }
}