/* ═══════════════════════════════════════════════════════════════
   SHAMMA SILK — MOBILE RESPONSIVE STYLESHEET
   Covers every section: Nav, Hero, Shop, Checkout, Cart,
   AI Stylist, Story, Moods, Footer, WhatsApp, Policy
   Breakpoints: 768px (tablet), 480px (phone), 380px (small phone)
═══════════════════════════════════════════════════════════════ */

/* ── CRITICAL iOS FIX: Prevent auto-zoom on input focus ─────── */
/* iOS zooms in when font-size < 16px. This globally fixes it.  */
input, select, textarea {
  font-size: 16px !important;
}

/* ═══════════════════════════════════════════════════════════════
   TABLET  ≤ 768px
═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {

  /* ── ANNOUNCEMENT BAR ─────────────────────────────────────── */
  #announce-bar {
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    padding: 0.45rem 0.75rem;
    gap: 0.5rem;
  }
  .announce-divider { display: none; }

  /* ── NAVIGATION ───────────────────────────────────────────── */
  nav {
    top: 28px;
    padding: 0.9rem 1.2rem;
  }
  .nav-center { display: none; }
  .nav-burger  { display: block; }
  .nav-right   {
    gap: 0.75rem;
  }
  .nav-ai-btn {
    display: none; /* shown in mobile menu instead */
  }

  /* ── MOBILE MENU ──────────────────────────────────────────── */
  .mobile-link { font-size: 2.2rem; margin: 0.25rem 0; }

  /* ── HERO ─────────────────────────────────────────────────── */
  .hero-content {
    padding: 6rem 5% 3.5rem 5%;
    max-width: 100%;
  }
  .hero-title {
    font-size: clamp(2.4rem, 9vw, 3.5rem);
    line-height: 1.05;
  }
  .hero-sub {
    font-size: 0.8rem;
    max-width: 90%;
  }
  .hero-actions {
    flex-direction: column;
    gap: 0.8rem;
    align-items: flex-start;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    width: 100%;
    text-align: center;
    padding: 1rem 1.5rem;
  }
  .hero-scroll { display: none; }

  /* ── SHOP / PRODUCTS ──────────────────────────────────────── */
  #shop { padding: 5rem 4% 4rem; }
  .shop-section-title {
    font-size: 2.5rem;
    text-align: center;
  }
  .shop-tabs {
    gap: 0.4rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0rem;
    margin-bottom: 1.8rem;
  }
  .shop-tabs::-webkit-scrollbar { display: none; }
  .tab-btn { padding: 0.75rem 1.2rem; font-size: 0.65rem; }
  .filter-btn { padding: 0.7rem 1rem; font-size: 0.62rem; min-height: 40px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .product-info  { padding: 1rem; }
  .product-name  { font-size: 1.05rem; }
  .price-gbp     { font-size: 1.2rem; }

  /* Product quick-view button — always visible on mobile (no hover) */
  .product-quick {
    transform: translateY(0) !important;
    opacity: 1 !important;
    font-size: 0.62rem;
    padding: 0.7rem;
  }
  /* Carousel nav always visible on touch */
  .carousel-nav { opacity: 1 !important; }
  .carousel-nav button { width: 28px; height: 28px; font-size: 1rem; }

  /* ── CART SIDEBAR ─────────────────────────────────────────── */
  #cartSidebar {
    width: 100vw;
    max-width: 100vw;
  }
  .cart-header { padding: 1.2rem 1rem; }
  #cartBody    { padding: 1rem; }
  #cartFooter  { padding: 1rem; }
  .cart-item   { gap: 0.75rem; }
  .cart-item-img { width: 64px; height: 80px; }
  .cart-qty button { padding: 0.4rem 0.7rem; min-width: 36px; min-height: 36px; }

  /* ── CHECKOUT MODAL ───────────────────────────────────────── */
  #checkoutModal {
    padding: 0;
    align-items: flex-end;
  }
  .checkout-wrap {
    max-height: 95vh;
    max-height: 95dvh; /* dynamic viewport height for iOS */
    border-radius: 16px 16px 0 0;
    grid-template-columns: 1fr;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .checkout-form-col {
    padding: 2rem 1.2rem 1.5rem;
    border-right: none;
    border-bottom: 1px solid rgba(155, 123, 46, 0.15);
  }
  .checkout-summary-col {
    padding: 1.5rem 1.2rem 2.5rem;
    background: #FAFAF7;
  }
  .checkout-form-col h2 { font-size: 1.6rem; }
  .form-row {
    grid-template-columns: 1fr; /* stack 2-col rows on mobile */
    gap: 0;
  }
  .form-group {
    margin-bottom: 1rem;
  }
  .form-group input,
  .form-group select,
  .form-group textarea {
    padding: 0.9rem 0.85rem;
    font-size: 16px !important; /* critical: prevents iOS zoom */
    border-radius: 4px;
  }
  #placeOrderBtn {
    padding: 1.1rem;
    font-size: 0.85rem;
    margin-top: 1.2rem;
  }
  #checkoutClose {
    top: 1rem;
    right: 1rem;
    font-size: 1.4rem;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .stripe-payment-section { margin-top: 1rem; }
  .stripe-security-badges {
    flex-wrap: wrap;
    gap: 0.4rem;
    font-size: 0.65rem;
  }
  .checkout-item img { width: 50px; height: 62px; }

  /* ── QUICK VIEW (PDP OVERLAY) ────────────────────────────── */
  #pdpOverlay {
    align-items: flex-end;
    padding: 0;
  }
  .qv-modal {
    max-width: 100%;
    max-height: 92vh;
    max-height: 92dvh;
    border-radius: 16px 16px 0 0;
    overflow-y: auto;
  }
  .qv-top, .pdp-top {
    flex-direction: column !important;
  }
  .qv-img-col {
    max-height: 45vh;
    overflow: hidden;
  }
  .qv-info-col { padding: 1.5rem 1.2rem 2rem; }
  .qv-title    { font-size: 1.8rem; }
  .qv-close    {
    top: 0.8rem;
    right: 0.8rem;
    min-width: 44px;
    min-height: 44px;
  }
  .qv-sizes { gap: 0.6rem; }
  .qv-size-option {
    padding: 0.7rem 1rem;
    min-height: 44px;
    font-size: 0.85rem;
  }

  /* ── AI STYLIST ───────────────────────────────────────────── */
  #aiOverlay {
    align-items: flex-end !important;
    padding: 0 !important;
  }
  .ai-panel {
    width: 100% !important;
    max-width: 100% !important;
    height: 92vh !important;
    height: 92dvh !important;
    border-radius: 16px 16px 0 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    top: auto !important;
  }
  .ai-input-area {
    padding: 0.8rem 1rem;
    padding-bottom: calc(0.8rem + env(safe-area-inset-bottom));
  }
  .ai-input {
    font-size: 16px !important;
  }
  .ai-message  { max-width: 90%; }
  .ai-rec-card { min-width: 130px; }

  /* ── FACTS / NUMBERS STRIP ────────────────────────────────── */
  .facts-strip {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem !important;
    padding: 3rem 5%;
  }
  .fact-num  { font-size: 2.8rem; }
  .fact-label{ font-size: 0.65rem; }

  /* ── STORY SECTION ────────────────────────────────────────── */
  .story-wrap {
    grid-template-columns: 1fr !important;
    gap: 2.5rem;
    padding: 0 5%;
  }
  .story-img-col { order: -1; max-height: 55vw; overflow: hidden; }
  .story-img-col img { object-position: center top; }
  .artisan-title { font-size: 2.2rem; }

  /* ── MOODS SECTION ────────────────────────────────────────── */
  #moods { padding: 5rem 4%; }
  .moods-grid {
    grid-template-columns: 1fr !important;
    gap: 1.2rem;
  }
  .mood-card { min-height: 300px; }
  .mood-card:hover { transform: none; } /* disable hover lift on touch */

  /* ── TESTIMONIALS ─────────────────────────────────────────── */
  .testi-grid {
    grid-template-columns: 1fr !important;
    gap: 1.2rem;
  }

  /* ── UPCOMING COLLECTIONS ─────────────────────────────────── */
  .upcoming-grid, .collections-grid {
    grid-template-columns: 1fr !important;
    gap: 1.2rem;
  }

  /* ── GLOBAL CTA ───────────────────────────────────────────── */
  #gcta { padding: 5rem 5%; text-align: center; }
  .gcta-title { font-size: 2.5rem; }

  /* ── FOOTER ───────────────────────────────────────────────── */
  footer { padding: 4rem 5% 3rem; }
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column !important;
    gap: 1rem;
    text-align: center;
  }

  /* ── BUTTONS — larger tap targets ─────────────────────────── */
  .btn-primary, .btn-outline {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* ── WISHLIST DRAWER ──────────────────────────────────────── */
  #wishlistDrawer {
    width: 100vw !important;
    max-width: 100vw !important;
  }

  /* ── POLICY MODAL ─────────────────────────────────────────── */
  .policy-modal {
    margin: 0;
    padding: 2.5rem 1.2rem 3rem;
    border: none;
    border-radius: 16px 16px 0 0;
  }
  .policy-content h2 { font-size: 2rem; }
  .policy-content h3 { font-size: 1.4rem; }

  /* ── SUCCESS SCREEN ───────────────────────────────────────── */
  .checkout-success { padding: 3rem 1.2rem; }
  .checkout-success h2 { font-size: 2rem; }

} /* end @media 768px */


/* ═══════════════════════════════════════════════════════════════
   SMALL PHONE  ≤ 480px
═══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {

  /* ── HERO ─────────────────────────────────────────────────── */
  .hero-content { padding: 5.5rem 4% 3rem 4%; }
  .hero-title   { font-size: clamp(2rem, 10vw, 2.8rem); }

  /* ── PRODUCTS ─────────────────────────────────────────────── */
  .products-grid  { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .product-info   { padding: 0.75rem; }
  .product-name   { font-size: 0.9rem; }
  .product-fabric { font-size: 0.65rem; margin-bottom: 0.5rem; }
  .product-sizes  { gap: 0.3rem; margin-bottom: 0.5rem; }
  .product-sizes span { font-size: 0.55rem; padding: 0.2rem 0.4rem; }
  .price-gbp      { font-size: 1.1rem; }
  .add-to-cart-btn { font-size: 0.65rem; padding: 0.75rem; margin-top: 0.6rem; }
  .product-quick  { font-size: 0.58rem; padding: 0.6rem; }

  /* ── FACTS ────────────────────────────────────────────────── */
  .facts-strip { grid-template-columns: repeat(2, 1fr) !important; padding: 2.5rem 4%; }
  .fact-num    { font-size: 2.4rem; }

  /* ── MOOD CARDS ───────────────────────────────────────────── */
  .mood-card { min-height: 260px; }

  /* ── ANNOUNCEMENT ─────────────────────────────────────────── */
  #announce-bar { font-size: 0.55rem; padding: 0.4rem 0.6rem; }

  /* ── CART SIDEBAR ─────────────────────────────────────────── */
  .cart-header h3 { font-size: 1.3rem; }
  .cart-item-img  { width: 58px; height: 72px; }
  .cart-item-name { font-size: 0.9rem; }

  /* ── CHECKOUT ─────────────────────────────────────────────── */
  .checkout-form-col { padding: 1.5rem 1rem; }
  .checkout-form-col h2 { font-size: 1.4rem; }
  .checkout-summary-col { padding: 1.2rem 1rem 2rem; }

  /* ── GLOBAL CTA ───────────────────────────────────────────── */
  .gcta-title { font-size: 2rem; }
  .gcta-sub   { font-size: 0.82rem; }

  /* ── FOOTER ───────────────────────────────────────────────── */
  footer { padding: 3rem 4% 2.5rem; }

} /* end @media 480px */


/* ═══════════════════════════════════════════════════════════════
   VERY SMALL PHONE  ≤ 380px  (iPhone SE, Galaxy A series)
═══════════════════════════════════════════════════════════════ */
@media (max-width: 380px) {

  .hero-title  { font-size: 2rem; }
  .hero-content{ padding: 5rem 4% 2.5rem; }

  .products-grid { grid-template-columns: 1fr; gap: 1rem; }
  .product-quick { display: none; } /* too small — use Add to Cart instead */

  nav { padding: 0.75rem 1rem; }

  .checkout-wrap { max-height: 98vh; max-height: 98dvh; }
  .checkout-form-col h2 { font-size: 1.3rem; }

  .mobile-link { font-size: 1.9rem; }

} /* end @media 380px */


/* ═══════════════════════════════════════════════════════════════
   SAFE AREA INSETS — iPhone notch / Dynamic Island / home bar
═══════════════════════════════════════════════════════════════ */
@supports (padding: max(0px)) {
  .checkout-wrap,
  .ai-panel,
  .qv-modal,
  #cartSidebar,
  #wishlistDrawer {
    padding-bottom: max(0px, env(safe-area-inset-bottom));
  }
  nav {
    padding-left: max(1.2rem, env(safe-area-inset-left));
    padding-right: max(1.2rem, env(safe-area-inset-right));
  }
}

/* ═══════════════════════════════════════════════════════════════
   TOUCH DEVICE OPTIMISATIONS (any pointer: coarse = touchscreen)
═══════════════════════════════════════════════════════════════ */
@media (pointer: coarse) {

  /* Enlarge all tap targets to minimum 44×44px */
  button, a, [role="button"] {
    min-height: 44px;
  }

  /* Remove hover-only effects that don't work on touch */
  .product-card:hover { transform: none; box-shadow: 0 2px 16px rgba(155,123,46,0.05); }
  .mood-card:hover    { transform: none; }
  .mood-card:hover .mood-card-bg  { transform: none; }
  .mood-card:hover .mood-card-content { transform: none; }

  /* Always show carousel navigation on touch devices */
  .carousel-nav { opacity: 1 !important; pointer-events: auto !important; }
  .carousel-nav button { pointer-events: auto !important; }

  /* Quick-view always visible on touch */
  .product-quick { transform: translateY(0) !important; }

  /* Smooth scroll momentum on overflow elements */
  #cartBody,
  .checkout-wrap,
  .ai-messages,
  .shop-tabs {
    -webkit-overflow-scrolling: touch;
  }

}