/* =============================================================
   YouTube Notes — Responsive Layer
   ============================================================= */

/* ---------- Tablet ---------- */
@media (max-width: 980px) {
  .section {
    padding-block: 80px;
  }

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

  .steps {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-inline: auto;
  }

  .roadmap {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-inline: auto;
  }

  .google-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

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

/* ---------- Mobile navigation ---------- */
@media (max-width: 820px) {
  .nav-links {
    position: fixed;
    inset-block-start: var(--nav-h);
    inset-inline: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: color-mix(in srgb, var(--bg) 96%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 12px 14px;
    font-size: 16px;
  }

  .nav-burger {
    display: inline-flex;
  }

  .desktop-cta {
    display: none;
  }
}

/* ---------- Small mobile ---------- */
@media (max-width: 560px) {
  .container {
    padding-inline: 18px;
  }

  .section {
    padding-block: 64px;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .hero {
    padding-top: calc(var(--nav-h) + 56px);
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

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

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

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .cta-band {
    padding: 44px 24px;
  }

  .google-card {
    padding: 28px 22px;
  }

  .involved-card {
    padding: 24px 20px;
  }

  .field-row {
    flex-direction: column;
  }

  .involved-card .btn,
  .field-row .btn {
    width: 100%;
  }

  .hero-visual {
    margin-top: 44px;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}