*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --navy: #0f2d5e;
    --navy-light: #1a4080;
    --orange: #e8601c;
    --orange-light: #f0784a;
    --bg: #f7f8fa;
    --white: #ffffff;
    --grey-100: #f0f1f3;
    --grey-200: #e2e4e8;
    --grey-400: #9ca3af;
    --grey-600: #6b7280;
    --grey-800: #374151;
    --text: #111827;
    --success: #16a34a;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,.12);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.15);
    --radius: 10px;
    --radius-sm: 6px;
  }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.6;
  }

  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }

  /* ===== TOP BAR ===== */
  .topbar {
    background: var(--navy);
    color: rgba(255,255,255,.85);
    font-size: 12.5px;
    padding: 7px 0;
  }
  .topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
  }
  .topbar span { display: flex; align-items: center; gap: 5px; }
  .topbar a { color: rgba(255,255,255,.85); }
  .topbar a:hover { color: #fff; }
  .topbar-right { display: flex; gap: 18px; align-items: center; }

  /* ===== HEADER ===== */
  .header {
    background: var(--white);
    border-bottom: 2px solid var(--grey-200);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
  }
  .header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 22px;
    color: var(--navy);
    letter-spacing: -0.5px;
  }
  .logo-icon {
    width: 38px;
    height: 38px;
    background: var(--orange);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 18px;
  }
  .logo span { color: var(--orange); }

  nav { display: flex; gap: 4px; align-items: center; }
  nav a {
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 14.5px;
    color: var(--grey-800);
    transition: background .18s, color .18s;
  }
  nav a:hover, nav a.active { background: var(--grey-100); color: var(--navy); }

  .header-actions { display: flex; align-items: center; gap: 10px; }
  .btn-cart {
    background: var(--orange);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background .18s, transform .12s;
    font-family: inherit;
  }
  .btn-cart:hover { background: var(--orange-light); transform: translateY(-1px); }
  .cart-count {
    background: var(--navy);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
  }

  /* ===== BREADCRUMB ===== */
  .breadcrumb-bar {
    background: var(--white);
    border-bottom: 1px solid var(--grey-200);
  }
  .breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--grey-600);
  }
  .breadcrumb a { color: var(--navy); }
  .breadcrumb a:hover { text-decoration: underline; }
  .breadcrumb .sep { color: var(--grey-400); }
  .breadcrumb .current { color: var(--grey-800); font-weight: 500; }

  /* ===== MAIN CONTENT ===== */
  .main { max-width: 1200px; margin: 0 auto; padding: 30px 20px 60px; }

  .product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
  }

  /* ===== PRODUCT GALLERY ===== */
  .gallery { position: sticky; top: 80px; }
  .main-image {
    background: var(--grey-100);
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--grey-200);
    position: relative;
  }
  .main-image img { width: 100%; height: 100%; object-fit: cover; }
  .badge-new {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--navy);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: .5px;
  }
  .thumbs {
    display: flex;
    gap: 10px;
    margin-top: 12px;
  }
  .thumb {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--grey-200);
    overflow: hidden;
    cursor: pointer;
    transition: border-color .18s;
    flex-shrink: 0;
    background: var(--grey-100);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .thumb:hover, .thumb.active { border-color: var(--orange); }
  .thumb img { width: 100%; height: 100%; object-fit: cover; }

  /* ===== PRODUCT INFO ===== */
  .product-info {}
  .product-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
  }
  .brand-tag {
    background: var(--navy);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: .5px;
  }
  .sku { font-size: 12px; color: var(--grey-400); }
  .stars { display: flex; align-items: center; gap: 3px; color: #f59e0b; font-size: 15px; }
  .stars-count { font-size: 13px; color: var(--grey-600); margin-left: 4px; }

  .product-name {
    font-size: 28px;
    font-weight: 800;
    color: var(--navy);
    line-height: 1.2;
    margin-bottom: 6px;
    letter-spacing: -0.5px;
  }
  .product-subtitle {
    font-size: 14.5px;
    color: var(--grey-600);
    margin-bottom: 18px;
  }
  .price-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 6px;
  }
  .price-main {
    font-size: 36px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -1px;
  }
  .price-vat { font-size: 13px; color: var(--grey-600); }
  .price-info {
    font-size: 13px;
    color: var(--grey-600);
    margin-bottom: 22px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--grey-200);
  }

  /* size / color selectors */
  .option-group { margin-bottom: 18px; }
  .option-label {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--grey-800);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .size-guide-link {
    font-size: 12.5px;
    color: var(--orange);
    font-weight: 500;
    cursor: pointer;
  }
  .size-guide-link:hover { text-decoration: underline; }

  .size-options { display: flex; gap: 8px; flex-wrap: wrap; }
  .size-btn {
    width: 50px;
    height: 42px;
    border: 2px solid var(--grey-200);
    background: var(--white);
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all .18s;
    font-family: inherit;
    color: var(--grey-800);
  }
  .size-btn:hover { border-color: var(--navy); color: var(--navy); }
  .size-btn.active { border-color: var(--navy); background: var(--navy); color: white; }
  .size-btn.sold-out { opacity: .4; cursor: not-allowed; text-decoration: line-through; }

  .color-options { display: flex; gap: 10px; flex-wrap: wrap; }
  .color-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: border-color .18s, transform .18s;
    outline: 2px solid transparent;
    outline-offset: 2px;
  }
  .color-btn:hover { transform: scale(1.1); }
  .color-btn.active { outline: 2px solid var(--navy); outline-offset: 2px; }
  .color-name { font-size: 13px; color: var(--grey-600); margin-top: 6px; }

  .qty-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
  }
  .qty-control {
    display: flex;
    align-items: center;
    border: 2px solid var(--grey-200);
    border-radius: var(--radius-sm);
    overflow: hidden;
  }
  .qty-btn {
    width: 38px;
    height: 42px;
    background: var(--grey-100);
    border: none;
    font-size: 18px;
    cursor: pointer;
    font-weight: 600;
    transition: background .15s;
    font-family: inherit;
  }
  .qty-btn:hover { background: var(--grey-200); }
  .qty-input {
    width: 50px;
    height: 42px;
    text-align: center;
    border: none;
    border-left: 2px solid var(--grey-200);
    border-right: 2px solid var(--grey-200);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    outline: none;
  }
  .stock-info { font-size: 13px; color: var(--success); font-weight: 500; display: flex; align-items: center; gap: 4px; }

  .btn-add-cart {
    width: 100%;
    background: var(--orange);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 15px 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
    transition: background .18s, transform .12s, box-shadow .18s;
    font-family: inherit;
    box-shadow: 0 4px 14px rgba(232,96,28,.35);
  }
  .btn-add-cart:hover { background: var(--orange-light); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,96,28,.45); }
  .btn-add-cart:active { transform: translateY(0); }

  .btn-wishlist {
    width: 100%;
    background: var(--white);
    color: var(--navy);
    border: 2px solid var(--navy);
    border-radius: var(--radius-sm);
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 22px;
    transition: all .18s;
    font-family: inherit;
  }
  .btn-wishlist:hover { background: var(--navy); color: white; }

  /* delivery info */
  .delivery-box {
    background: var(--grey-100);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 20px;
  }
  .delivery-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 13.5px;
    color: var(--grey-800);
    border-bottom: 1px solid var(--grey-200);
  }
  .delivery-item:last-child { border-bottom: none; }
  .delivery-icon { font-size: 17px; width: 24px; text-align: center; }
  .delivery-detail { font-size: 12px; color: var(--grey-400); }

  /* payment icons */
  .payment-section { margin-bottom: 20px; }
  .payment-label { font-size: 13px; color: var(--grey-600); margin-bottom: 8px; font-weight: 600; }
  .payment-icons { display: flex; gap: 8px; flex-wrap: wrap; }
  .pay-icon {
    background: var(--white);
    border: 1.5px solid var(--grey-200);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--grey-800);
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .pay-visa { color: #1a1f71; }
  .pay-mc { color: #eb001b; }
  .pay-paypal { color: #003087; }

  /* ===== TRUST BADGES ===== */
  .trust-section {
    background: var(--white);
    border-top: 2px solid var(--grey-200);
    border-bottom: 2px solid var(--grey-200);
    padding: 28px 0;
    margin: 40px 0;
  }
  .trust-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
  }
  .trust-icon {
    width: 52px;
    height: 52px;
    background: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
  }
  .trust-title {
    font-size: 14.5px;
    font-weight: 700;
    color: var(--navy);
  }
  .trust-desc { font-size: 12.5px; color: var(--grey-600); }

  /* ===== REVIEWS ===== */
  .reviews-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 50px;
  }
  .section-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 6px;
    letter-spacing: -0.3px;
  }
  .section-sub { font-size: 14px; color: var(--grey-600); margin-bottom: 24px; }
  .reviews-summary {
    display: flex;
    align-items: center;
    gap: 24px;
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 20px;
    border: 1px solid var(--grey-200);
  }
  .rating-big { font-size: 56px; font-weight: 800; color: var(--navy); line-height: 1; }
  .rating-details { flex: 1; }
  .rating-stars-big { color: #f59e0b; font-size: 22px; }
  .rating-count { font-size: 13px; color: var(--grey-600); margin-top: 2px; }
  .rating-bars { flex: 2; }
  .rating-bar-row { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--grey-600); margin-bottom: 3px; }
  .bar-track { flex: 1; height: 7px; background: var(--grey-200); border-radius: 4px; overflow: hidden; }
  .bar-fill { height: 100%; background: #f59e0b; border-radius: 4px; }
  .bar-pct { width: 28px; text-align: right; }

  .review-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .review-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--grey-200);
    box-shadow: var(--shadow-sm);
  }
  .review-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
  .reviewer-name { font-weight: 700; font-size: 14.5px; color: var(--navy); }
  .review-date { font-size: 12px; color: var(--grey-400); }
  .review-stars { color: #f59e0b; font-size: 14px; margin-bottom: 8px; }
  .review-badge { font-size: 11px; background: #dcfce7; color: var(--success); padding: 2px 8px; border-radius: 4px; font-weight: 600; margin-bottom: 8px; display: inline-block; }
  .review-text { font-size: 13.5px; color: var(--grey-700); line-height: 1.55; }
  .review-product { font-size: 12px; color: var(--grey-400); margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--grey-100); }

  /* ===== ABOUT ===== */
  .about-section {
    background: var(--navy);
    color: white;
    padding: 50px 0;
    margin: 0;
  }
  .about-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
  }
  .about-title { font-size: 26px; font-weight: 800; margin-bottom: 14px; }
  .about-text { font-size: 14.5px; line-height: 1.7; color: rgba(255,255,255,.82); margin-bottom: 20px; }
  .about-stats { display: flex; gap: 28px; flex-wrap: wrap; }
  .stat { text-align: center; }
  .stat-num { font-size: 28px; font-weight: 800; color: var(--orange); }
  .stat-label { font-size: 12px; color: rgba(255,255,255,.7); }
  .about-badges { display: flex; flex-direction: column; gap: 12px; }
  .about-badge {
    background: rgba(255,255,255,.1);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13.5px;
    color: rgba(255,255,255,.9);
  }
  .about-badge-icon { font-size: 22px; }

  /* ===== CHECK SHOP BUTTON ===== */
  .check-shop-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
  }
  .btn-check {
    background: var(--navy);
    color: white;
    border: none;
    border-radius: var(--radius);
    padding: 16px 36px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background .18s, transform .12s;
    box-shadow: var(--shadow-md);
  }
  .btn-check:hover { background: var(--navy-light); transform: translateY(-2px); }

  /* trust checklist modal */
  .trust-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.55);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 20px;
  }
  .trust-overlay.active { display: flex; }
  .trust-modal {
    background: white;
    border-radius: 16px;
    padding: 36px;
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
  }
  .trust-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--grey-100);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-size: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s;
    font-family: inherit;
  }
  .trust-modal-close:hover { background: var(--grey-200); }
  .trust-modal-header {
    text-align: center;
    margin-bottom: 24px;
  }
  .trust-success-icon {
    width: 64px;
    height: 64px;
    background: #dcfce7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 14px;
  }
  .trust-modal-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--success);
    margin-bottom: 6px;
  }
  .trust-modal-sub { font-size: 14px; color: var(--grey-600); }
  .trust-checklist { list-style: none; }
  .trust-check-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--grey-100);
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity .35s ease, transform .35s ease;
  }
  .trust-check-item.visible { opacity: 1; transform: translateX(0); }
  .trust-check-item:last-child { border-bottom: none; }
  .check-icon {
    width: 24px;
    height: 24px;
    background: #dcfce7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 13px;
    color: var(--success);
    font-weight: 700;
  }
  .check-text { font-size: 13.5px; color: var(--grey-800); line-height: 1.45; }
  .check-text strong { color: var(--navy); }

  /* ===== FOOTER ===== */
  .footer {
    background: #0a1f40;
    color: rgba(255,255,255,.75);
    padding: 50px 0 0;
  }
  .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 36px;
    margin-bottom: 40px;
  }
  .footer-brand-name { font-size: 20px; font-weight: 800; color: white; margin-bottom: 8px; }
  .footer-brand-name span { color: var(--orange); }
  .footer-desc { font-size: 13px; line-height: 1.65; margin-bottom: 14px; }
  .footer-contact { font-size: 13px; line-height: 1.8; }
  .footer-contact strong { color: white; }
  .footer-col-title { font-size: 14px; font-weight: 700; color: white; margin-bottom: 14px; }
  .footer-links { list-style: none; }
  .footer-links li { margin-bottom: 7px; }
  .footer-links a { font-size: 13px; color: rgba(255,255,255,.68); transition: color .15s; }
  .footer-links a:hover { color: var(--orange); }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,.12);
    padding: 18px 20px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 14px;
    flex-wrap: wrap;
  }
  .footer-legal { font-size: 12px; line-height: 1.65; }
  .footer-legal a { color: rgba(255,255,255,.5); }
  .footer-legal a:hover { color: var(--orange); }
  .footer-company-info { font-size: 12px; color: rgba(255,255,255,.45); line-height: 1.65; text-align: right; }
  .footer-edu {
    background: rgba(232,96,28,.15);
    border: 1px solid rgba(232,96,28,.35);
    border-radius: 8px;
    padding: 10px 16px;
    font-size: 12px;
    line-height: 1.6;
    color: rgba(255,255,255,.75);
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 16px;
    padding-left: 20px;
    padding-right: 20px;
  }
  .footer-edu a { color: var(--orange); }

  /* ===== ADDED TO CART TOAST ===== */
  .toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--navy);
    color: white;
    padding: 14px 22px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 500;
    transform: translateY(80px);
    opacity: 0;
    transition: transform .3s cubic-bezier(.34,1.56,.64,1), opacity .25s;
  }
  .toast.show { transform: translateY(0); opacity: 1; }

  /* ===== RESPONSIVE ===== */
  @media (max-width: 900px) {
    .product-grid { grid-template-columns: 1fr; }
    .trust-inner { grid-template-columns: repeat(2, 1fr); }
    .review-cards { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .about-inner { grid-template-columns: 1fr; gap: 30px; }
  }
  @media (max-width: 640px) {
    nav { display: none; }
    .trust-inner { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr; }
    .reviews-summary { flex-direction: column; align-items: flex-start; gap: 12px; }
    .footer-bottom { flex-direction: column; }
    .footer-company-info { text-align: left; }
  }