/* ============================================================
   responsive.css — breakpoints: 1080 / 860 / 700 / 560
   ============================================================ */

/* ---------- ≤1080 ---------- */
@media (max-width: 1080px) {
  .nav-link {
    padding: 9px 10px;
  }

  .site-nav {
    gap: 18px;
  }

  .hero-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }

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

/* ---------- ≤860 ---------- */
@media (max-width: 860px) {
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 32px 40px 40px;
    background: var(--bg);
    border-top: 1px solid var(--line);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    z-index: 240;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    justify-content: space-between;
    padding: 18px 0;
    font-size: 15px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }

  .nav-cta {
    display: inline-flex;
    justify-content: center;
    margin-top: 32px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-card {
    max-width: 520px;
  }

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

  .source-wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
}

/* ---------- ≤700 ---------- */
@media (max-width: 700px) {
  .container {
    padding: 0 24px;
  }

  .hero {
    padding-top: calc(var(--header-h) + 80px);
    padding-bottom: 64px;
  }

  .hero-title {
    font-size: clamp(44px, 14vw, 68px);
  }

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

  .hero-cta .pill {
    width: 100%;
  }

  .section {
    padding: 84px 0;
  }

  .section-head {
    margin-bottom: 44px;
  }

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

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

  .timeline-item {
    padding-left: 30px;
  }

  .faq-head {
    gap: 14px;
  }

  .faq-body p {
    padding-left: 44px;
  }
}

/* ---------- ≤560 ---------- */
@media (max-width: 560px) {
  .brand-role {
    display: none;
  }

  .hero-greet {
    margin-bottom: 20px;
  }

  .stack-groups {
    grid-template-columns: 1fr;
  }

  .project-info {
    padding: 22px;
  }

  .contact-title {
    font-size: clamp(40px, 13vw, 58px);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .source-wrap {
    padding: 26px;
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header,
  .nav-toggle,
  .scroll-progress,
  .marquee,
  .hero-cta,
  .contact-link {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .section {
    padding: 28px 0;
  }

  .faq-body {
    max-height: none !important;
    overflow: visible;
  }
}