/* ============================================================
   Bonk — Responsive
   Mobile-first overrides. Breakpoints: 375 / 768 / 1024 / 1440
   ============================================================ */

/* ============ Tablet (≥768px) ============ */
@media (max-width: 1023px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  .hero__desc {
    max-width: 100%;
  }

  .spotlight {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .ai-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

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

  /* Nav collapses to mobile menu */
  .nav__links {
    display: none;
  }
  .nav__toggle {
    display: flex;
  }
}

/* ============ Mobile (≤767px) ============ */
@media (max-width: 767px) {
  :root {
    --container-padding: var(--space-5);
    --space-32: 4rem;
    --space-24: 3rem;
  }

  .section {
    padding-block: var(--space-24);
  }

  .hero {
    padding-top: calc(var(--nav-height) + var(--space-16));
    padding-bottom: var(--space-24);
  }

  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }
  .hero__cta .btn {
    width: 100%;
  }

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

  .dl-meta {
    flex-direction: column;
    gap: var(--space-3);
  }

  /* 条纹行收窄 */
  .feature-row {
    grid-template-columns: 40px 1fr;
    padding: var(--space-8) 0;
  }
  .feature-row__desc {
    font-size: var(--text-base);
  }

  .provider-list {
    grid-template-columns: 1fr;
  }
  .provider-row:nth-child(even) {
    padding-left: 0;
    border-left: none;
  }

  .terminal__body {
    min-height: 240px;
    font-size: 12px;
    padding: var(--space-4);
  }

  /* Mobile nav dropdown */
  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav.is-open .nav__link {
    padding: var(--space-4) var(--space-2);
    border-radius: var(--radius-sm);
  }
  .nav.is-open .nav__link:hover {
    background: var(--bg-hover);
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer__links {
    flex-wrap: wrap;
  }

  .section__head {
    margin-bottom: var(--space-12);
  }
}

/* ============ Small phone (≤414px) ============ */
@media (max-width: 414px) {
  .nav__brand {
    font-size: var(--text-lg);
  }
  .gh-badge__label {
    display: none;
  }
  .lang-switch button {
    padding: 0 var(--space-2);
  }
}

/* ============ Large desktop (≥1440px) ============ */
@media (min-width: 1440px) {
  :root {
    --container-max: 1280px;
  }
}

/* ============ Print ============ */
@media print {
  .nav,
  .hero__cta,
  .footer__links {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
}