.tier-card {
    flex: 1;
    background: var(--surface2);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 14px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
  }
  .tier-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
  }
  .tier-card:focus-visible {
    outline: 2px solid var(--pink);
    outline-offset: 3px;
  }
  .tier-card.selected {
    border-color: var(--pink);
    background: var(--pink-soft);
    box-shadow: 0 0 20px var(--pink-glow);
  }
  .tier-card .qty {
    font-family: 'DM Mono', monospace;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 2px;
  }
  .tier-card .qty-label {
    font-size: 11px;
    color: var(--gray);
    margin-bottom: 8px;
  }
  .tier-card.custom {
    padding: 16px;
    gap: 10px;
  }
  .tier-card.custom .qty-input {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.18);
    background: rgba(0,0,0,0.18);
    color: #fff;
    padding: 12px 12px;
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    outline: none;
  }
  .tier-card.custom .qty-input:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 2px rgba(0, 216, 152, 0.15);
  }
  .tier-card.custom .qty-hint {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    text-align: center;
  }
  .tier-card .price {
    font-family: 'DM Mono', monospace;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
  }
  .tier-card .price-sub {
    font-size: 10px;
    color: var(--gray);
  }
  .tier-card .badge {
    position: absolute;
    top: -9px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--pink-hover);
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: var(--radius-lg);
    white-space: nowrap;
  }
  .tier-card .save {
    display: inline-block;
    margin-top: 6px;
    font-size: 10px;
    font-family: 'DM Mono', monospace;
    color: var(--green);
    background: var(--green-soft);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
  }

  /* ─── Brand Selector ─── */
  .brand-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
  }
  .brand-card {
    flex: 1;
    background: var(--surface2);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 16px;
    cursor: pointer;
    transition: border-color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
  }
  .brand-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
  }
  .brand-card.selected {
    border-color: var(--pink);
    background: var(--pink-soft);
    box-shadow: 0 0 20px var(--pink-glow);
  }
  .brand-name {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
  }
  .brand-spec {
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--gray);
    letter-spacing: 0.03em;
  }
  .brand-badge {
    position: absolute;
    top: -9px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--pink-hover);
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: var(--radius-lg);
    white-space: nowrap;
  }
  .brand-badge.new {
    background: var(--green);
    color: #000;
  }
  .brand-badge.coming-soon {
    background: rgba(255,183,77,0.15);
    color: #ffb74d;
  }
  .brand-card.disabled {
    opacity: 0.55;
    pointer-events: none;
    cursor: default;
  }
  .brand-help {
    font-size: 12px;
    color: var(--gray);
    margin-top: 8px;
  }
  .brand-help a {
    color: var(--pink);
    text-decoration: none;
    font-weight: 500;
  }
  @media (max-width: 480px) {
    .brand-selector { flex-direction: column; }
  }

  /* ─── Payment Methods ─── */
  .payment-options {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
  }
  .payment-btn {
    flex: 1;
    background: var(--surface2);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 12px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
  }
  .payment-btn:hover { border-color: var(--border-hover); }
  .payment-btn:focus-visible { outline: 2px solid var(--pink); outline-offset: 2px; }
  .payment-btn.selected {
    border-color: var(--pink);
    background: var(--pink-soft);
  }
  .payment-btn .pay-icon { font-size: 20px; margin-bottom: 4px; }
  .payment-btn .pay-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--white);
  }
  .payment-btn .pay-sub {
    font-size: 10px;
    color: var(--gray);
    margin-top: 2px;
  }
  @media (max-width: 480px) {
    .payment-options { flex-direction: column; }
  }

  /* ─── USDT Payment ─── */
  .usdt-instructions {
    margin: 12px 0 16px;
    padding: 16px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    border-left: 3px solid #26a17b;
  }
  .usdt-header {
    font-weight: 600;
    font-size: 13px;
    color: #26a17b;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  .usdt-amount {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
  }
  .usdt-label { color: var(--gray); font-size: 11px; }
  .usdt-value { font-weight: 700; font-size: 18px; color: var(--white); }
  .usdt-note {
    font-size: 11px;
    color: var(--gray);
    margin-top: 8px;
  }
  .usdt-note a { color: #26a17b; }
  .usdt-network-badge {
    font-size: 9px;
    background: #26a17b;
    color: #fff;
    padding: 2px 8px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    margin-left: 6px;
  }
  .confirm-usdt-block {
    margin: 16px 0;
    padding: 16px;
    background: var(--surface2);
    border: 1px solid #26a17b;
    border-radius: var(--radius-sm);
  }
  .confirm-usdt-header {
    font-weight: 600;
    color: #26a17b;
    margin-bottom: 10px;
  }
  .confirm-usdt-amount {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .confirm-usdt-note {
    font-size: 11px;
    color: var(--gray);
    margin-top: 10px;
  }

  /* ─── CTA Button ─── */
  .cta-btn {
    width: 100%;
    background: var(--pink);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 16px 24px;
    font-family: 'Outfit', sans-serif;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
  }
  .cta-btn:hover {
    background: var(--pink-hover, #a81d55);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(219,38,108,0.3);
  }
  .cta-btn .cta-sub {
    display: block;
    font-size: 12px;
    font-weight: 400;
    opacity: 0.9;
    margin-top: 4px;
  }
  .next-steps {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    padding: 16px 20px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--gray);
    line-height: 1.5;
  }
  .next-steps div {
    flex: 1;
    text-align: center;
  }
  .next-steps strong {
    display: block;
    color: var(--white);
    font-size: 11px;
    font-family: var(--mono);
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 4px;
  }
  @media (max-width: 480px) {
    .next-steps { flex-direction: column; gap: 12px; }
  }

  /* ─── Inline Trust Row ─── */
  .trust-row {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
  }
  .trust-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10.5px;
    color: var(--gray);
  }
  .trust-item .t-icon {
    font-size: 14px;
  }
  .trust-item .t-icon.green { color: var(--green); }
  .trust-item .t-icon.pink { color: var(--pink); }

  /* ─── Order Summary Sidebar ─── */
  .summary-side {
    position: sticky;
    top: 80px;
  }
  .summary-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 14px;
  }
  .summary-card h3 {
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray);
    margin-bottom: 18px;
  }

  /* Product in summary */
  .summary-product {
    display: flex;
    gap: 14px;
    padding-bottom: 18px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border);
  }
  .summary-product img {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--border);
    background: var(--surface2);
  }
  .summary-product .sp-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
  }
  .summary-product .sp-variant {
    font-size: 11px;
    color: var(--gray);
    margin-bottom: 6px;
  }
  .summary-product .sp-price {
    font-family: 'DM Mono', monospace;
    font-size: 14px;
    font-weight: 500;
  }

  /* Summary lines */
  .summary-line {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 10px;
    color: var(--gray-light);
  }
  .summary-line .sl-val {
    font-family: 'DM Mono', monospace;
    color: var(--white);
  }
  .summary-line.free .sl-val { color: var(--green); }
  .summary-line.discount .sl-val { color: var(--green); }

  /* Promo code */
  .promo-toggle {
    font-family: 'DM Mono', monospace; font-size: 11px; letter-spacing: .1em;
    color: var(--pink); cursor: pointer; transition: color var(--transition-fast), border-bottom-color var(--transition-fast); margin-bottom: 12px;
    display: inline-block; border-bottom: 1px dashed rgba(219,38,108,0.4);
    padding-bottom: 2px; background: none; border-top: none; border-left: none; border-right: none;
  }
  .promo-toggle:hover { color: var(--white); border-bottom-color: var(--white); }
  .promo-row {
    display: none; gap: 8px; margin-bottom: 14px;
  }
  .promo-row.show { display: flex; }
  .promo-row input {
    flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 8px 12px; font-family: 'DM Mono', monospace; font-size: 12px;
    color: var(--white); letter-spacing: .1em; text-transform: uppercase;
  }
  .promo-row input::placeholder { color: var(--gray2); text-transform: none; letter-spacing: .05em; }
  .promo-row input:focus { outline: none; border-color: var(--pink); }
  .promo-apply {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 8px 14px; font-family: 'DM Mono', monospace; font-size: 11px;
    letter-spacing: .1em; text-transform: uppercase; color: var(--white);
    cursor: pointer; transition: border-color var(--transition-fast), color var(--transition-fast); white-space: nowrap;
  }
  .promo-apply:hover { border-color: var(--pink); color: var(--pink); }
  .promo-msg { font-family: 'DM Mono', monospace; font-size: 10px; margin-bottom: 10px; }
  .promo-msg.ok { color: var(--green); }
  .promo-msg.err { color: #ff5252; }

  .summary-total {
    display: flex;
    justify-content: space-between;
    font-size: 16px;
    font-weight: 600;
    padding-top: 14px;
    margin-top: 14px;
    border-top: 1px solid var(--border);
  }
  .summary-total .st-val {
    font-family: 'DM Mono', monospace;
    color: var(--pink);
    font-size: 20px;
  }

  /* ─── COA Badge ─── */
  .coa-badge {
    background: var(--surface);
    border: 1px solid rgba(0,230,118,0.15);
    border-radius: var(--radius);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
  }
  .coa-badge .coa-icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
    border-radius: 8px;
    background: var(--green-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--green);
  }
  .coa-badge .coa-text h4 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 1px;
  }
  .coa-badge .coa-text p {
    font-size: 10px;
    color: var(--gray);
  }

  /* ─── Delivery Badge ─── */
  .delivery-badge {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
  }
  .delivery-badge .db-icon {
    font-size: 18px;
  }
  .delivery-badge strong {
    color: var(--white);
  }
  .delivery-badge span {
    color: var(--gray);
  }

  /* ─── Bundle Countdown ─── */
  .bundle-countdown {
    background: var(--surface);
    border: 1px solid var(--accent-soft);
    border-radius: var(--radius);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    margin-top: 14px;
  }
  .bundle-countdown .bc-icon { font-size: 18px; }
  .bundle-countdown strong { color: var(--white); }
  .bundle-countdown .bc-timer {
    display: block;
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    color: var(--gray);
    margin-top: 2px;
    letter-spacing: .05em;
  }

  /* ─── Disclaimer ─── */
  .disclaimer {
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--gray);
    line-height: 1.6;
    letter-spacing: 0.02em;
    padding: 16px 0 0;
    border-top: 1px solid var(--border);
    margin-top: 20px;
  }

  /* ─── Responsive ─── */
  @media (max-width: 900px) {
    .main {
      grid-template-columns: 1fr;
      padding: 12px 16px 40px;
    }
    .summary-side {
      position: relative;
      top: 0;
    }
    .nav { padding: 14px 16px; }
    .progress-bar { padding: 20px 16px 16px; }
    .tier-selector { flex-direction: column; }
    .form-row { grid-template-columns: 1fr; }
    .trust-row { flex-wrap: wrap; gap: 12px; }
    .step-line { width: 20px; margin: 0 6px; }
  }

  @media (max-width: 480px) {
    .payment-options { flex-direction: column; }
    .announce-bar { font-size: 11px; }
  }

  /* ─── WhatsApp Float ─── */
  .wa-float {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #25D366;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(37,211,102,0.3);
    z-index: 95;
    transition: transform var(--transition-fast);
  }
  .wa-float:hover { transform: scale(1.1); }

  /* ─── Age Gate ─── */
  .age-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 14px 0;
    font-size: 12px;
    color: var(--gray);
  }
  .age-check input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    min-width: 24px;
    border: 1.5px solid var(--border-hover);
    border-radius: var(--radius);
    background: var(--surface2);
    cursor: pointer;
    position: relative;
    margin-top: 1px;
  }
  .age-check input[type="checkbox"]:checked {
    background: var(--pink);
    border-color: var(--pink);
  }
  .age-check input[type="checkbox"]:checked::after {
    content: '\2713';
    color: #fff;
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .age-check a { color: var(--pink); text-decoration: none; }

  /* ── A11Y: focus-visible for interactive elements ── */
  .cta-btn:focus-visible,
  .promo-toggle:focus-visible,
  .promo-apply:focus-visible,
  .age-check input:focus-visible,
  .brand-card:focus-visible,
  .wa-float:focus-visible,
  .back-to-top:focus-visible {
    outline: 2px solid var(--pink);
    outline-offset: 2px;
  }

  /* ── A11Y: prefers-reduced-motion ── */
  @media (prefers-reduced-motion: reduce) {
    .tier-card:hover,
    .brand-card:hover,
    .cta-btn:hover,
    .wa-float:hover { transform: none; }
  }

  /* ── BACK TO TOP ── */
  .back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--surface, #111);
    border: 1px solid var(--border, #222);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition), border-color var(--transition), background var(--transition);
    z-index: 900;
    text-decoration: none;
  }
  .back-to-top.visible { opacity: 1; visibility: visible; }
  .back-to-top:hover {
    border-color: var(--pink, #db266c);
    background: rgba(219,38,108,0.08);
  }
  .back-to-top svg {
    width: 18px;
    height: 18px;
    stroke: var(--gray, #888);
    transition: stroke var(--transition);
  }
  .back-to-top:hover svg { stroke: var(--pink, #db266c); }
  /* Push up if WhatsApp float is present */
  .whatsapp-float ~ .back-to-top { bottom: 90px; }
  @media (max-width: 768px) {
    .back-to-top { bottom: 24px; right: 24px; width: 40px; height: 40px; }
    .whatsapp-float ~ .back-to-top { bottom: 80px; }
  }

  /* ─── Order Hero ─── */
  .order-hero {
    max-width: 700px;
    margin: 0 auto;
    padding: 8px 32px 0;
    text-align: center;
  }
  .order-hero h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.2;
  }
  .order-hero p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
    max-width: 560px;
    margin: 0 auto 4px;
  }
  @media (max-width: 768px) {
    .order-hero { padding: 8px 16px 0; }
    .order-hero h1 { font-size: 26px; }
  }

  /* ─── Order Info Section ─── */
  .order-info {
    border-top: 1px solid var(--border);
    margin-top: 0;
    padding: 48px 0 40px;
  }
  .order-info-inner {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 32px;
  }
  .order-info h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    line-height: 1.25;
  }
  .order-info h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 10px;
    color: var(--white);
  }
  .order-info p {
    font-size: 14px;
    color: var(--gray-light);
    line-height: 1.75;
    margin-bottom: 12px;
  }
  .order-info strong {
    color: var(--white);
    font-weight: 600;
  }
  .order-info-img {
    width: 100%;
    max-width: 520px;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin: 24px 0;
    display: block;
  }
  .order-info-img-sm {
    max-width: 360px;
  }
  .order-faq {
    margin-top: 16px;
  }
  .order-faq h3 {
    font-size: 15px;
    margin-top: 24px;
    margin-bottom: 6px;
    color: var(--pink);
  }
  .order-faq p {
    margin-bottom: 16px;
  }
  @media (max-width: 768px) {
    .order-info { padding: 32px 0 28px; }
    .order-info-inner { padding: 0 16px; }
    .order-info h2 { font-size: 24px; }
    .order-info h3 { font-size: 16px; }
    .order-info-img { max-width: 100%; }
    .order-info-img-sm { max-width: 100%; }
  }

  /* ─── Order Confirmation ─── */
  .order-confirmation {
    grid-column: 1 / -1;
    max-width: 600px;
    margin: 0 auto;
    padding: 48px 32px;
    text-align: center;
  }
  .confirm-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--green-soft);
    color: var(--green);
    font-size: 36px;
    line-height: 72px;
    font-weight: 700;
  }
  .order-confirmation h2 {
    font-size: 28px;
    margin-bottom: 8px;
  }
  .confirm-subtitle {
    color: var(--gray-light);
    margin-bottom: 32px;
  }
  .confirm-details {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 28px;
    text-align: left;
  }
  .confirm-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }
  .confirm-row:last-child { border-bottom: none; }
  .confirm-label { color: var(--gray); }
  .confirm-value { font-weight: 600; }
  .confirm-next {
    text-align: left;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 28px;
  }
  .confirm-next h3 {
    font-size: 16px;
    margin-bottom: 12px;
  }
  .confirm-next ol {
    padding-left: 20px;
    color: var(--gray-light);
  }
  .confirm-next li { margin-bottom: 8px; }
  .confirm-next li:last-child { margin-bottom: 0; }
  .confirm-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .confirm-actions .cta-btn {
    width: 100%;
    max-width: 360px;
    text-decoration: none;
    text-align: center;
  }
  .confirm-home-link {
    color: var(--gray-light);
    text-decoration: underline;
    font-size: 14px;
  }
  .confirm-home-link:hover { color: var(--white); }