/* ==========================================================================
   META PEPTIDES — Responsive layer (mobile-first)
   Base styles target 320–767px. These queries scale up.
     ≥ 480px  large phones
     ≥ 768px  tablet
     ≥ 1024px laptop / desktop (desktop header, no bottom nav)
     ≥ 1440px wide desktop
   ========================================================================== */

/* very small phones */
@media (max-width: 359px) {
  :root { --gutter: 12px; }
  .hero h1 { font-size: 18px; }
  .trust-item strong { font-size: 8.5px; }
  .trust-item span { display: none; }
  .cat-tile { font-size: 8.5px; }
  .product-card { grid-template-columns: 60px 1fr auto; gap: 10px; }
  .product-card .p-thumb { width: 60px; height: 60px; }
  .social-btn { font-size: 11px; }
}

@media (min-width: 480px) {
  .hero h1 { font-size: 26px; }
  .hero p { font-size: 13.5px; }
  .form-row-2 { grid-template-columns: 1fr 1fr; }
  .address-grid { grid-template-columns: 1fr 1fr; }
  .dash-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Tablet ---------- */
@media (min-width: 768px) {
  :root { --gutter: 24px; }
  body { font-size: 15px; }
  .page-title, .dark-band .page-title, .info-hero .page-title { font-size: 24px; }
  .section { padding-block: 40px; }
  .section-title { font-size: 17px; }

  .hero-inner { grid-template-columns: 1fr 46%; padding-block: 44px 30px; }
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 15px; }
  .hero .btn { height: 42px; padding: 0 22px; font-size: 12px; }
  .trust-item { flex-direction: row; text-align: left; gap: 10px; padding: 14px; justify-content: center; }
  .trust-item .txt { display: flex; flex-direction: column; }
  .trust-item strong { font-size: 11px; }
  .trust-item span { font-size: 10.5px; }
  .cat-cards { grid-template-columns: repeat(3, 1fr); }
  .cat-tiles { grid-template-columns: repeat(4, 1fr); }
  .cat-tile { min-height: 74px; font-size: 10.5px; }

  /* product cards become vertical cards */
  .product-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .product-card {
    grid-template-columns: 1fr; grid-template-rows: auto 1fr; gap: 10px; align-items: stretch;
    padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-md);
    transition: box-shadow 0.2s, transform 0.2s;
  }
  .product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
  .product-card .p-thumb { width: 100%; height: auto; aspect-ratio: 1 / 1; background: var(--grey-50); }
  .product-card .p-side { flex-direction: row; align-items: center; justify-content: space-between; padding: 0; align-self: end; }
  .product-card .p-info { display: flex; flex-direction: column; }
  .product-card .p-price { margin-top: 6px; }
  .product-card .p-add { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: var(--radius-xs); background: var(--blue-600); color: #fff; }
  .product-card .p-add .icon { width: 15px; height: 15px; }
  .product-card .p-add:hover { background: var(--blue-700); }
  .list-panel { border-radius: var(--radius-lg); margin-inline: 0; padding: 18px 20px 28px; }
  .related-grid { grid-template-columns: repeat(4, 1fr); gap: 14px; }

  .row-item { padding: 14px 18px; }
  .row-item .row-side .status { display: inline; }

  .pdp-main-img { aspect-ratio: 1 / 1; }
  .pdp-thumb { width: 84px; height: 84px; }

  .benefit-grid { grid-template-columns: repeat(4, 1fr); }
  .info-hero .lead { font-size: 14px; }
  .catalogue-cards { grid-template-columns: repeat(3, 1fr); }
  .footer-features ul { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1.4fr repeat(3, 1fr); gap: 30px; padding-block: 44px 30px; }
  .footer-col { border-top: 0; }
  .footer-toggle { pointer-events: none; padding-top: 0; }
  .footer-toggle .icon { display: none; }
  .footer-col ul { display: block; }
  .footer-bottom .container { flex-direction: row; align-items: center; justify-content: space-between; }
  .contact-layout { grid-template-columns: 1.4fr 1fr; }
  .toast-wrap { left: auto; right: 20px; transform: none; }
}

/* ---------- Laptop / Desktop ---------- */
@media (min-width: 1024px) {
  :root { --header-h: 74px; }
  body { padding-bottom: 0; }
  .bottom-nav { display: none; }
  .to-top { bottom: 24px; right: 24px; }
  .toast-wrap { bottom: 24px; }

  /* desktop header is always dark, as in the reference */
  .site-header, .theme-light .site-header { background: var(--navy-950); color: #fff; border-bottom-color: var(--dark-border); }
  .theme-light .logo .logo-light { display: block; }
  .theme-light .logo .logo-dark { display: none; }
  .header-bar { grid-template-columns: auto 1fr auto; gap: 28px; }
  .header-bar .nav-toggle { display: none; }
  .logo { justify-self: start; }
  .logo img { height: 40px; }
  .header-search { display: block; justify-self: center; width: 100%; max-width: 440px; }
  .header-search input {
    width: 100%; height: 40px; padding: 0 44px 0 16px;
    border-radius: var(--radius-sm); border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.04); color: #fff; font-size: 13px;
  }
  .header-search input::placeholder { color: var(--on-dark-muted); }
  .header-search input:focus { outline: none; border-color: var(--blue-500); background: rgba(255, 255, 255, 0.08); }
  .header-search > button { position: absolute; right: 4px; top: 4px; width: 32px; height: 32px; display: grid; place-items: center; color: #fff; }
  .header-actions { gap: 14px; }
  .header-action { min-width: 52px; }
  .header-action .label { display: block; }
  .header-action.account-link { display: inline-flex; }
  .cart-count { top: -2px; right: 6px; }

  .main-nav { display: block; border-top: 1px solid var(--dark-border); }
  .main-nav > ul { display: flex; justify-content: center; gap: 4px; }
  .main-nav > ul > li { position: relative; }
  .main-nav > ul > li > a {
    display: inline-flex; align-items: center; gap: 4px; height: 42px; padding: 0 16px;
    font-size: 11.5px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: #c9d4e4;
    border-bottom: 2px solid transparent;
  }
  .main-nav > ul > li > a:hover, .main-nav > ul > li > a[aria-current="page"] { color: #fff; border-bottom-color: var(--blue-500); }
  .main-nav .dropdown {
    position: absolute; top: 100%; left: 50%; transform: translate(-50%, 6px);
    min-width: 260px; padding: 8px; border-radius: var(--radius-md);
    background: var(--navy-900); border: 1px solid var(--dark-border); box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden; transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  }
  .main-nav li:hover > .dropdown, .main-nav li:focus-within > .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
  .main-nav .dropdown a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: var(--radius-sm); font-size: 13px; color: #dfe7f2; }
  .main-nav .dropdown a:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
  .main-nav .dropdown .icon { color: var(--cyan-400); width: 17px; height: 17px; }

  /* home */
  .hero-inner { grid-template-columns: 1fr 50%; padding-block: 56px 36px; min-height: 380px; }
  .hero h1 { font-size: 44px; }
  .hero p { font-size: 16px; }
  .trust-row { grid-template-columns: repeat(4, 1fr); }
  .cat-tiles { grid-template-columns: repeat(8, 1fr); gap: 0; }
  .shop-by-cat { padding: 18px 20px; }
  .shop-by-cat .sbc-head { text-align: left; }
  .cat-tile { background: none !important; border: 0; border-left: 1px solid var(--dark-border); border-radius: 0; align-items: center; text-align: center; justify-content: center; flex-direction: column-reverse; min-height: 88px; padding: 10px 6px; gap: 10px; }
  .cat-tile:first-child { border-left: 0; }
  .cat-tile .icon { width: 24px; height: 24px; color: #fff; }
  .cat-tile:hover { transform: none; background: rgba(255, 255, 255, 0.04) !important; }

  .product-grid { grid-template-columns: repeat(4, 1fr); }
  .product-grid.is-compact { grid-template-columns: repeat(3, 1fr); }
  .shop-layout .product-grid { grid-template-columns: repeat(4, 1fr); }

  .pdp { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; padding-top: 6px; align-items: start; }
  .pdp-gallery { position: sticky; top: 140px; }
  .pdp-title { font-size: 26px; }
  .pdp-price { font-size: 30px; }

  .cart-layout { grid-template-columns: 1fr 380px; align-items: start; gap: 40px; }
  .checkout-layout { grid-template-columns: 1fr 380px; align-items: start; gap: 40px; }
  .account-layout { grid-template-columns: 260px 1fr; align-items: start; gap: 40px; padding-top: 10px; }
  .account-aside, .account-layout.is-sub .account-aside { display: block; position: sticky; top: 140px; }
  .account-back { display: none !important; }
  .account-aside .page-title { display: block; }
  .footer-features ul { grid-template-columns: repeat(4, 1fr); }
  .catalogue-cards .cat-card { min-height: 180px; }
  .filter-panel .filter-groups { grid-template-columns: repeat(3, 1fr); }
  .about-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
  .about-layout .about-media { aspect-ratio: 4 / 3; }
}

@media (min-width: 1440px) {
  :root { --container: 1320px; }
  .hero h1 { font-size: 52px; }
  .hero-inner { min-height: 440px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header, .bottom-nav, .drawer, .site-footer, .footer-features, .to-top { display: none !important; }
  body { padding: 0; }
}