/* ============================================
   RESPONSIVE.CSS — Mobile-first breakpoints
   ============================================ */

/* --- Tablet (max 1024px) --- */
@media (max-width: 1024px) {
  .header__launch {
    display: none;
  }

  /* Hero */
  .hero__content {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  /* Product */
  .product__layout {
    gap: 40px;
  }

  .card-swap-container {
    width: 360px;
    height: 320px;
    transform: translate(0, 8%);
  }

  .swap-card {
    width: 360px;
    height: 320px;
  }

  /* Steps */
  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* Use cases */
  .use-cases__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Team */
  .team__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  /* Platform inner */
  .platform-access__inner {
    gap: 40px;
  }
}

/* --- Mobile Large (max 768px) --- */
@media (max-width: 768px) {
  :root {
    --header-height: 62px;
  }

  /* Disable fullpage snap on mobile — sections flow naturally */
  .section {
    height: auto;
    min-height: auto;
    overflow: visible;
    display: block;
    padding: clamp(56px, 8vw, 80px) 0;
  }

  .hero {
    height: 100dvh;
  }

  /* Header mobile nav */
  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 272px;
    height: 100vh;
    background: rgba(9, 13, 23, 0.97);
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    padding: 80px 24px 32px;
    border-left: 1px solid var(--border);
  }

  .header__nav.open {
    transform: translateX(0);
  }

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

  .nav-link {
    padding: 11px 16px;
    font-size: 0.975rem;
    border-radius: var(--radius-sm);
  }

  .header__hamburger {
    display: flex;
  }

  .header__actions .btn:not(.header__hamburger) {
    display: none;
  }

  /* Gooey effects hidden on mobile */
  .gooey-effect {
    display: none !important;
  }

  /* Hero */
  .hero__content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__widget {
    justify-content: center;
  }

  .hero-dash {
    max-width: 100%;
  }

  .hero__title {
    font-size: clamp(3rem, 10vw, 4.5rem);
    max-width: none;
  }

  .hero__subtitle {
    font-size: 1rem;
    max-width: 100%;
  }

  .hero__actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .hero__scroll-indicator {
    left: 16px;
  }

  /* Problem */
  .problem__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .problem__stats {
    gap: 24px;
  }

  /* Product */
  .product__layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .product__cards {
    min-height: 400px;
  }

  .card-swap-container {
    width: 320px;
    height: 300px;
    transform: translate(0, 4%);
  }

  .swap-card {
    width: 320px;
    height: 300px;
  }

  .swap-card__inner {
    padding: 24px;
  }

  .swap-card__inner h3 {
    font-size: 1.1rem;
  }

  /* Platform */
  .platform-access__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .platform-access__text {
    text-align: center;
  }

  .platform-access__features {
    align-items: flex-start;
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
  }

  .platform-access__cta {
    margin: 0 auto;
    display: flex;
  }

  .dashboard-mock {
    max-width: 420px;
    margin: 0 auto;
    animation: none;
  }

  /* Steps */
  .steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Benefits */
  .benefits__comparison {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .benefits__vs {
    display: none;
  }

  /* Use cases */
  .use-cases__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* About */
  .about__pillars {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Team */
  .team__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .team-card--featured {
    transform: none !important;
  }

  .team-card--featured:hover {
    transform: translateY(-3px) !important;
  }

  /* Contact */
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .contact__form-wrapper {
    padding: 24px;
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

/* --- Mobile Small (max 480px) --- */
@media (max-width: 480px) {
  .hero__widget {
    display: none;
  }

  .container {
    padding: 0 16px;
  }

  .section-title {
    font-size: clamp(1.8rem, 7vw, 2.4rem);
  }

  .section-desc {
    font-size: 0.95rem;
  }

  .hero__title {
    font-size: clamp(2.6rem, 11vw, 3.6rem);
    line-height: 1.0;
  }

  .hero__overline {
    font-size: 0.65rem;
  }

  .product__cards {
    min-height: 340px;
  }

  .card-swap-container,
  .swap-card {
    width: 280px;
    height: 260px;
  }

  .swap-card__inner {
    padding: 20px;
  }

  .swap-card__inner p {
    font-size: 0.82rem;
  }

  .step-card,
  .use-case-card,
  .about__pillar,
  .team-card {
    padding: 24px 20px;
  }

  .benefits__column {
    padding: 24px 20px;
  }

  .stat-block__number {
    font-size: clamp(2.4rem, 8vw, 3.2rem);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .dashboard-mock {
    max-width: 100%;
  }

  .dm-stats-row {
    gap: 5px;
  }

  .dm-stat-num {
    font-size: 0.82rem;
  }
}

/* --- Nav overlay --- */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}