@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding: var(--space-8) 0 var(--space-12);
  }

  .hero-content {
    text-align: center;
  }

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

  .hero-cta,
  .hero-trust {
    justify-content: center;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-visual {
    max-width: 560px;
    margin: 0 auto;
  }

  .browser-chrome {
    transform: none;
  }

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

  .steps-grid {
    flex-direction: column;
    align-items: center;
  }

  .step-arrow {
    transform: rotate(90deg);
    padding: 0;
  }

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

  .trust-cards {
    grid-template-columns: 1fr;
  }

  .donate-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .legal-article {
    padding: var(--space-6);
  }

  .legal-tldr {
    padding: var(--space-5);
  }

  .tiers-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .support-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-8);
  }

  .support-copy > p {
    margin-left: auto;
    margin-right: auto;
  }

  .support-cta,
  .support-meta {
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand {
    justify-content: center;
  }

  .footer-links {
    align-items: center;
  }

  .footer-meta {
    text-align: center;
  }
}

/* Mobile nav: hamburger + slide-in drawer */
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-cta-desktop {
    display: none;
  }

  .nav-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-5) var(--space-4);
    padding-top: calc(var(--space-5) + env(safe-area-inset-top, 0px));
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.08), transparent);
  }

  .nav-cta-mobile {
    display: block;
    margin-top: auto;
    padding: var(--space-5) var(--space-5);
    padding-bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--border-subtle);
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.3));
    flex-shrink: 0;
  }

  .nav-cta-mobile .btn {
    width: 100%;
    justify-content: center;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(400px, 100vw);
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(180deg, #0f172a 0%, #0b1220 100%);
    border-left: 1px solid var(--border-default);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
    transform: translateX(100%);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: -24px 0 60px rgba(0, 0, 0, 0.6);
    z-index: 99;
    -webkit-overflow-scrolling: touch;
  }

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

  .nav-links > a {
    padding: var(--space-4) var(--space-5);
    margin: 0 var(--space-3);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    transition: color 0.2s ease, background 0.25s ease, transform 0.25s ease;
    opacity: 0;
    transform: translateX(20px);
    position: relative;
  }

  .nav-links > a + a {
    margin-top: 2px;
  }

  .nav-links > a:first-of-type {
    margin-top: var(--space-3);
  }

  .nav-links.is-open > a {
    animation: navLinkIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  }

  .nav-links.is-open > a:nth-of-type(1) { animation-delay: 0.10s; }
  .nav-links.is-open > a:nth-of-type(2) { animation-delay: 0.15s; }
  .nav-links.is-open > a:nth-of-type(3) { animation-delay: 0.20s; }
  .nav-links.is-open > a:nth-of-type(4) { animation-delay: 0.25s; }
  .nav-links.is-open > a:nth-of-type(5) { animation-delay: 0.30s; }
  .nav-links.is-open > a:nth-of-type(6) { animation-delay: 0.35s; }

  .nav-links.is-open .nav-cta-mobile {
    animation: navLinkIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.42s;
    opacity: 0;
    transform: translateY(12px);
  }

  @keyframes navLinkIn {
    to {
      opacity: 1;
      transform: translate(0, 0);
    }
  }

  .nav-links > a::after {
    content: '';
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.5;
    transition: opacity 0.2s ease, transform 0.25s ease;
  }

  .nav-links > a:hover,
  .nav-links > a:active,
  .nav-links > a:focus-visible {
    color: var(--text-primary);
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.12), rgba(124, 58, 237, 0.06));
    transform: translateX(0);
    outline: none;
  }

  .nav-links > a:hover::after,
  .nav-links > a:active::after,
  .nav-links > a:focus-visible::after {
    opacity: 1;
    transform: translateX(4px);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e2e8f0' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
  }
}

@media (max-width: 480px) {
  .nav-links {
    width: 100vw;
    border-left: none;
  }
}

@media (max-width: 768px) {
  .donate-hero h1,
  .legal-hero h1 {
    font-size: var(--text-2xl);
  }

  .legal-article {
    padding: var(--space-5) var(--space-4);
  }

  .legal-article h2 {
    font-size: var(--text-lg);
    margin: var(--space-8) 0 var(--space-3);
  }

  .qr-frame {
    width: 240px;
    height: 240px;
  }

  .copy-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .copy-row .copy-btn {
    justify-self: end;
  }

  .methods-tabs {
    flex-wrap: wrap;
  }

  .methods-tab {
    flex: 1 1 calc(50% - 4px);
  }

  .navbar .btn-chrome {
    padding: 8px 14px;
    font-size: var(--text-sm);
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-sub {
    font-size: var(--text-md);
  }

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

  .section-head h2 {
    font-size: var(--text-2xl);
  }

  .pp-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .pp-body {
    height: 140px;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

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

  .hero-trust {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }

  .support-cta {
    flex-direction: column;
  }

  .support-cta .btn {
    width: 100%;
  }

  .brand-text small {
    display: none;
  }

  .navbar-inner {
    padding: var(--space-2) 0;
  }

  .hero h1 {
    font-size: 26px;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .cta-inner {
    padding: var(--space-8) var(--space-4);
  }

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

  .footer {
    padding: var(--space-8) 0 var(--space-6);
  }
}

/* Panel responsive */
@media (max-width: 900px) {
  .rq-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .rq-split {
    flex-direction: column;
  }

  .rq-list-pane {
    width: 100%;
    max-height: 200px;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .rq-toolbar {
    gap: var(--space-1);
  }

  .rq-toolbar-group {
    border-left: none;
    padding-left: 0;
  }
}

@media (max-width: 600px) {
  .rq-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .panel-frame {
    height: auto;
    min-height: 500px;
  }

  .rq-tagline {
    display: none;
  }
}