@media (max-width: 1200px) {
  .container {
    max-width: 1040px;
  }

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

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

@media (max-width: 992px) {
  .section {
    padding: 78px 0;
  }

  .hamburger {
    display: inline-flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .nav-menu {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
    left: 24px;
    opacity: 0;
    padding: 18px;
    pointer-events: none;
    position: absolute;
    right: 24px;
    top: 88px;
    transform: translateY(-12px);
    transition: opacity var(--transition), transform var(--transition);
  }

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

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

  .nav-link {
    display: block;
    padding: 12px;
  }

  .nav-link::after {
    display: none;
  }

  .hero-grid {
    gap: 42px;
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

  .hero-visual {
    margin: 0 auto;
    max-width: 560px;
    width: 100%;
  }

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

  .category-grid,
  .benefit-grid,
  .testimonial-grid,
  .product-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .newsletter-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .navbar {
    height: 72px;
  }

  html {
    scroll-padding-top: 84px;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 12vw, 4rem);
  }

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

  .hero-stats {
    align-items: flex-start;
  }

  .floating-note {
    bottom: 16px;
    left: 16px;
    max-width: calc(100% - 32px);
  }

  .brand-strip,
  .category-grid,
  .benefit-grid,
  .testimonial-grid,
  .product-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .brand-strip {
    gap: 12px;
  }

  .countdown {
    grid-template-columns: repeat(4, minmax(58px, 1fr));
    width: 100%;
  }

  .countdown div {
    padding: 12px 4px;
  }

  .newsletter-inner {
    border-radius: 18px;
    padding: 30px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input {
    min-height: 46px;
  }
}

@media (max-width: 576px) {
  .section {
    padding: 64px 0;
  }

  .section-sm {
    padding: 42px 0;
  }

  .logo {
    font-size: 1.15rem;
  }

  .icon-btn {
    height: 40px;
    width: 40px;
  }

  .nav-actions {
    gap: 8px;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .hero-stats {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
  }

  .category-card div,
  .product-info,
  .benefit-card,
  .testimonial-card {
    padding: 22px;
  }

  .product-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .add-cart {
    width: 100%;
  }

  .sale-grid {
    gap: 24px;
  }

  .footer {
    padding-top: 48px;
  }
}

@media (max-width: 375px) {
  .container {
    padding: 0 16px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .filter-tabs {
    justify-content: stretch;
  }

  .filter-btn {
    flex: 1 1 calc(50% - 8px);
  }

  .countdown {
    gap: 8px;
  }

  .countdown strong {
    font-size: 1.25rem;
  }

  .newsletter-inner {
    padding: 24px 18px;
  }
}

@media (max-width: 320px) {
  .nav-actions .icon-btn:first-child {
    display: none;
  }

  .hero h1 {
    font-size: 2.15rem;
  }

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