:root {
        --primary-color: #0b1a30;
        --secondary-color: #1c5282;
        --accent-color: #0077b6;
        --whatsapp-color: #25d366;
        --whatsapp-hover: #1ebe55;
        --text-main: #1f2937;
        --text-light: #475569;
        --bg-body: #f8fafc;
        --bg-surface: #ffffff;
        --border-color: #e2e8f0;
        --shadow-sm: 0 10px 24px -18px rgba(11, 26, 48, 0.28), 0 6px 12px -10px rgba(11, 26, 48, 0.18);
        --shadow-md: 0 18px 40px -24px rgba(11, 26, 48, 0.34), 0 10px 18px -14px rgba(11, 26, 48, 0.2);
        --shadow-lg: 0 28px 60px -30px rgba(11, 26, 48, 0.4), 0 18px 28px -22px rgba(11, 26, 48, 0.24);
        --radius-md: 12px;
        --radius-lg: 20px;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      }

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

      html {
        font-size: 16px;
        scroll-behavior: smooth;
      }

      body {
        font-family:
          'Inter',
          system-ui,
          -apple-system,
          sans-serif;
        color: var(--text-main);
        background-color: var(--bg-body);
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
      }

      a {
        text-decoration: none;
        color: inherit;
        transition: var(--transition);
      }

      img {
        max-width: 100%;
        height: auto;
        display: block;
      }

      .container {
        width: 100%;
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
        position: relative;
        z-index: 1;
      }

      /* Top Bar */
      .top-bar {
        background-color: var(--primary-color);
        color: #e2e8f0;
        font-size: 0.85rem;
        text-align: center;
        padding: 10px 0;
        font-weight: 500;
        letter-spacing: 0.5px;
      }

      /* Header */
      header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        padding: 16px 0;
        transition: var(--transition);
      }

      .header-inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .logo {
        display: flex;
        align-items: center;
        gap: 16px;
        color: var(--primary-color);
      }

      .logo img {
        width: 64px;
        height: 64px;
        object-fit: contain;
        filter: drop-shadow(0 4px 6px rgba(11, 26, 48, 0.1));
      }

      .logo-text {
        display: flex;
        flex-direction: column;
        line-height: 1.1;
      }

      .logo-text strong {
        font-size: 1.5rem;
        font-weight: 800;
        letter-spacing: -0.5px;
      }

      .logo-text span {
        font-size: 0.75rem;
        color: var(--accent-color);
        font-weight: 700;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        margin-top: 4px;
      }

      .nav-links {
        display: flex;
        gap: 28px;
        align-items: center;
      }

      .nav-links a {
        font-weight: 600;
        font-size: 0.95rem;
        color: var(--text-main);
      }

      .nav-links a:hover {
        color: var(--accent-color);
      }

      .header-actions {
        display: flex;
        gap: 16px;
        align-items: center;
      }

      /* Buttons */
      .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 14px 32px;
        border-radius: 999px;
        font-weight: 600;
        font-size: 1rem;
        cursor: pointer;
        transition: var(--transition);
        border: none;
        text-align: center;
      }

      .btn-primary {
        background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
        color: #fff;
        box-shadow: var(--shadow-sm);
      }

      .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
      }

      .btn-outline {
        background: transparent;
        border: 2px solid var(--primary-color);
        color: var(--primary-color);
      }

      .btn-outline:hover {
        background: var(--primary-color);
        color: #fff;
      }

      .btn-whatsapp {
        background: var(--whatsapp-color);
        color: #fff;
        box-shadow: var(--shadow-sm);
      }

      .btn-whatsapp:hover {
        background: var(--whatsapp-hover);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
      }

      .btn-cart {
        background: var(--bg-surface);
        border: 1px solid rgba(11, 26, 48, 0.1);
        color: var(--primary-color);
        border-radius: 999px;
        padding: 10px 20px;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        cursor: pointer;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
      }

      .btn-cart:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
      }

      .cart-badge {
        background: var(--accent-color);
        color: #fff;
        border-radius: 999px;
        padding: 2px 8px;
        font-size: 0.8rem;
      }

      .mobile-menu-btn {
        display: none;
        background: none;
        border: none;
        font-size: 2rem;
        color: var(--primary-color);
        cursor: pointer;
      }

      /* Decorative Logo Repetition */
      .section-logo-repeat {
        position: relative;
        overflow: hidden;
      }

      .section-logo-repeat::after {
        content: '';
        position: absolute;
        top: 42px;
        right: 4%;
        width: 190px;
        height: 190px;
        background-image: url('assets/logo.png');
        background-repeat: no-repeat;
        background-position: center;
        background-size: contain;
        opacity: 0.12;
        filter: contrast(1.12) brightness(0.62) saturate(0.9);
        pointer-events: none;
        z-index: 0;
      }

      /* Logo decorativo siempre del lado derecho */
      .section-logo-repeat.left-logo::after {
        right: 4%;
        left: auto;
        top: 42px;
      }

      .section-logo-repeat > .container {
        position: relative;
        z-index: 1;
      }

      /* Hero Section */
      .hero {
        background:
          radial-gradient(circle at top right, rgba(0, 119, 182, 0.08), transparent 40%),
          linear-gradient(135deg, #f8fbff 0%, #eef3f8 48%, #e3ebf3 100%);
        padding: 100px 0;
        position: relative;
        overflow: hidden;
      }

      .hero-bg-logo {
        position: absolute;
        top: 50%;
        right: 1%;
        transform: translateY(-50%);
        width: 430px;
        height: 430px;
        background-image: url('assets/logo.png');
        background-repeat: no-repeat;
        background-position: center;
        background-size: contain;
        opacity: 0.13;
        filter: contrast(1.14) brightness(0.6) saturate(0.92);
        pointer-events: none;
        z-index: 0;
      }

      .hero-grid {
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 60px;
        align-items: center;
        position: relative;
        z-index: 1;
      }

      .hero-badges {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 32px;
      }

      .badge {
        background: rgba(255, 255, 255, 0.9);
        border: 1px solid rgba(11, 26, 48, 0.08);
        padding: 8px 16px;
        border-radius: 999px;
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--secondary-color);
        box-shadow: var(--shadow-sm);
      }

      .hero h1 {
        font-size: 3.5rem;
        color: var(--primary-color);
        font-weight: 800;
        line-height: 1.1;
        margin-bottom: 24px;
        letter-spacing: -1px;
      }

      .hero p {
        font-size: 1.25rem;
        color: var(--text-light);
        margin-bottom: 40px;
        line-height: 1.7;
      }

      .hero-actions {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
      }

      .hero-trust-line {
        margin-top: 24px;
        color: var(--primary-color);
        font-size: 0.98rem;
        font-weight: 700;
        line-height: 1.7;
      }

      .premium-card {
        background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.98));
        border-color: rgba(11, 26, 48, 0.08);
      }

      .testimonial-card strong {
        margin-top: 18px;
        color: var(--primary-color);
        font-size: 0.95rem;
      }

      .final-cta {
        background: linear-gradient(135deg, #edf5fb 0%, #f8fbff 100%);
      }

      .final-cta-box {
        max-width: 980px;
        margin: 0 auto;
        text-align: center;
        padding: 54px 40px;
        border-radius: 28px;
        background: linear-gradient(160deg, var(--primary-color), #153458 58%, #224f7c 100%);
        box-shadow: var(--shadow-lg);
      }

      .final-cta-box .section-subtitle,
      .final-cta-box .section-title,
      .final-cta-box p {
        color: #fff;
      }

      .final-cta-box p {
        max-width: 760px;
        margin: 18px auto 0;
        color: rgba(255,255,255,0.86);
        font-size: 1.08rem;
      }

      .cart-legal-note {
        background: #fff7ed;
        border-color: #fed7aa;
        color: #7c2d12;
      }

      .hero-img {
        position: relative;
        z-index: 2;
      }

      .hero-img img {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
        filter: drop-shadow(0 20px 40px rgba(11, 26, 48, 0.15));
      }

      /* Sections Shared */
      section {
        padding: 100px 0;
        position: relative;
      }

      .bg-surface {
        background-color: var(--bg-surface);
      }

      .section-header {
        text-align: center;
        margin-bottom: 60px;
        max-width: 800px;
        margin-inline: auto;
      }

      .section-subtitle {
        color: var(--accent-color);
        font-weight: 800;
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 2px;
        display: block;
        margin-bottom: 16px;
      }

      .section-title {
        font-size: 2.8rem;
        color: var(--primary-color);
        font-weight: 800;
        line-height: 1.2;
        letter-spacing: -0.5px;
      }

      .grid-2 {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
        gap: 40px;
      }

      .grid-3 {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 32px;
      }

      .grid-4 {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 32px;
      }

      /* Cards */
      .card {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 40px 32px;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        position: relative;
        z-index: 1;
      }

      .card:hover {
        box-shadow: var(--shadow-md);
        border-color: rgba(0, 119, 182, 0.2);
      }

      .card h3 {
        color: var(--primary-color);
        font-size: 1.4rem;
        margin-bottom: 16px;
        font-weight: 800;
      }

      .card p {
        color: var(--text-light);
        font-size: 1.05rem;
        line-height: 1.7;
      }

      /* About Section */
      .about-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 32px;
        align-items: stretch;
      }

      .about-story-card,
      .about-motto-card {
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.98));
        border: 1px solid rgba(11, 26, 48, 0.08);
        border-radius: var(--radius-lg);
        padding: 48px;
        box-shadow: var(--shadow-md);
        position: relative;
      }

      .about-story-card p,
      .about-motto-card p {
        color: var(--text-light);
        font-size: 1.1rem;
        line-height: 1.8;
        margin-bottom: 20px;
      }

      .about-pillars {
        display: grid;
        gap: 16px;
        margin-top: 32px;
      }

      .about-pillar {
        padding: 20px;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        background: rgba(255, 255, 255, 0.88);
        box-shadow: var(--shadow-sm);
      }

      .about-pillar strong {
        display: block;
        color: var(--primary-color);
        font-size: 1.1rem;
        margin-bottom: 8px;
      }

      .about-kicker {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 10px 16px;
        border-radius: 999px;
        background: rgba(0, 119, 182, 0.08);
        color: var(--secondary-color);
        font-weight: 700;
        margin-bottom: 24px;
      }

      .about-motto-card {
        background: linear-gradient(160deg, var(--primary-color), #153458 58%, #224f7c 100%);
        color: #fff;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding-bottom: 140px;
      }

      .about-brand-logo {
        position: absolute;
        right: 28px;
        bottom: 24px;
        width: 118px;
        height: auto;
        object-fit: contain;
        filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.18));
        opacity: 0.98;
        z-index: 1;
        pointer-events: none;
      }

      .about-motto-card h3 {
        font-size: 2.2rem;
        line-height: 1.2;
        margin-bottom: 24px;
        color: #fff;
        position: relative;
        z-index: 1;
      }

      .about-motto-card p {
        color: rgba(255, 255, 255, 0.86);
        position: relative;
        z-index: 1;
      }

      .about-signature {
        font-weight: 700;
        letter-spacing: 0.3px;
        margin-top: 24px;
      }

      /* Catalog Filters */
      .catalog-filters {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 32px;
        margin-bottom: 48px;
        display: flex;
        flex-wrap: wrap;
        gap: 24px;
        align-items: center;
        box-shadow: var(--shadow-sm);
        position: relative;
        z-index: 2;
      }

      .filter-group {
        display: flex;
        flex-direction: column;
        gap: 8px;
        flex: 1;
        min-width: 200px;
      }

      .filter-group label {
        font-weight: 700;
        font-size: 0.95rem;
        color: var(--primary-color);
      }

      .filter-group select,
      .filter-group input[type='range'] {
        width: 100%;
        padding: 12px 16px;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        font-family: inherit;
        font-size: 1rem;
        background: var(--bg-body);
        transition: var(--transition);
      }

      .filter-group select:focus {
        outline: none;
        border-color: var(--accent-color);
        box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.1);
      }

      /* Product Card */
      .product-card {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        position: relative;
        z-index: 1;
      }

      .product-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-6px);
      }

      .product-img-wrapper {
        position: relative;
        height: 280px;
        background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
        border-bottom: 1px solid var(--border-color);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px;
      }

      .product-img-wrapper img {
        max-height: 100%;
        object-fit: contain;
        mix-blend-mode: normal;
        filter: drop-shadow(0 15px 25px rgba(11, 26, 48, 0.12));
        transition: transform 0.3s ease;
      }

      #accessories-grid .product-img-wrapper {
        background: #ffffff;
      }

      #accessories-grid .product-img-wrapper img {
        max-width: 88%;
      }

      #accessories-grid .product-card[data-accessory-id='a4'] .product-img-wrapper img {
        mix-blend-mode: normal;
        max-width: 84%;
      }

      .product-card:hover .product-img-wrapper img {
        transform: scale(1.05);
      }

      .btu-badge {
        position: absolute;
        top: 14px;
        left: 14px;
        background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
        color: #fff;
        padding: 12px 18px;
        border-radius: 16px;
        font-size: 1.28rem;
        font-weight: 800;
        box-shadow: var(--shadow-md);
        z-index: 2;
        letter-spacing: -0.5px;
        line-height: 1;
      }

      .btu-badge small {
        display: block;
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 1.1px;
        opacity: 0.92;
        margin-top: 4px;
      }

      .product-info {
        padding: 32px;
        display: flex;
        flex-direction: column;
        flex: 1;
      }

      .product-brand {
        color: var(--secondary-color);
        font-weight: 800;
        font-size: 0.9rem;
        text-transform: uppercase;
        margin-bottom: 8px;
        letter-spacing: 1.5px;
      }

      .product-title {
        font-size: 1.4rem;
        color: var(--primary-color);
        font-weight: 800;
        margin-bottom: 16px;
        line-height: 1.3;
      }

      .product-meta {
        display: flex;
        gap: 8px;
        margin-bottom: 20px;
        flex-wrap: wrap;
      }

      .meta-tag {
        background: var(--bg-body);
        border: 1px solid var(--border-color);
        padding: 6px 14px;
        border-radius: 8px;
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--text-main);
      }

      .product-desc {
        color: var(--text-light);
        font-size: 1rem;
        margin-bottom: 28px;
        flex: 1;
        line-height: 1.6;
      }

      .product-price {
        font-size: 1.8rem;
        color: var(--primary-color);
        font-weight: 800;
        margin-bottom: 24px;
      }

      .catalog-brand-block {
        margin-bottom: 34px;
        padding: 30px;
        border-radius: var(--radius-lg);
        background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.98));
        border: 1px solid rgba(11, 26, 48, 0.08);
        box-shadow: var(--shadow-sm);
      }

      .catalog-brand-header {
        display: flex;
        justify-content: space-between;
        gap: 20px;
        align-items: flex-end;
        margin-bottom: 24px;
        padding-bottom: 18px;
        border-bottom: 1px solid var(--border-color);
      }

      .catalog-brand-title {
        display: block;
        color: var(--primary-color);
        font-size: 1.7rem;
        font-weight: 800;
        letter-spacing: -0.4px;
        margin-bottom: 6px;
      }

      .catalog-brand-note {
        color: var(--text-light);
        font-size: 1rem;
        line-height: 1.7;
        max-width: 700px;
      }

      .catalog-brand-summary {
        padding: 10px 14px;
        border-radius: 999px;
        background: rgba(0, 119, 182, 0.08);
        color: var(--secondary-color);
        font-weight: 800;
        font-size: 0.9rem;
        white-space: nowrap;
      }

      .catalog-brand-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 24px;
      }

      /* Process Steps */
      .process-step {
        text-align: center;
        padding: 40px 32px;
        background: var(--bg-surface);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        position: relative;
      }

      .process-step-num {
        width: 56px;
        height: 56px;
        background: var(--accent-color);
        color: #fff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        font-weight: 800;
        margin: 0 auto 24px;
        box-shadow: var(--shadow-md);
      }

      /* FAQ */
      .faq-wrapper {
        max-width: 800px;
        margin: 0 auto;
        position: relative;
        z-index: 1;
      }

      details {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        margin-bottom: 16px;
        overflow: hidden;
        transition: var(--transition);
        box-shadow: var(--shadow-sm);
      }

      summary {
        padding: 24px 32px;
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--primary-color);
        cursor: pointer;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      summary::-webkit-details-marker {
        display: none;
      }

      summary::after {
        content: '+';
        font-size: 1.5rem;
        color: var(--accent-color);
        transition: var(--transition);
      }

      details[open] summary::after {
        content: '−';
      }

      .faq-content {
        padding: 0 32px 32px;
        color: var(--text-light);
        font-size: 1.05rem;
        line-height: 1.7;
      }

      /* Contact Section */
      .contact-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        position: relative;
        z-index: 1;
      }

      .rates-box {
        background: var(--primary-color);
        color: #fff;
        border-radius: var(--radius-lg);
        padding: 48px;
        box-shadow: var(--shadow-lg);
        position: relative;
        overflow: hidden;
      }

      .rates-box::after {
        content: '';
        position: absolute;
        bottom: -10%;
        right: -10%;
        width: 300px;
        height: 300px;
        background: url('assets/logo.png') center/contain no-repeat;
        opacity: 0.05;
        filter: brightness(0) invert(1);
        pointer-events: none;
      }

      .rates-box h3 {
        color: #fff;
        font-size: 1.8rem;
        margin-bottom: 24px;
        font-weight: 800;
        position: relative;
        z-index: 1;
      }

      .rates-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
        position: relative;
        z-index: 1;
      }

      .rate-item {
        display: flex;
        justify-content: space-between;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.2);
        padding-bottom: 12px;
        font-size: 1.1rem;
      }

      .rate-item span {
        color: #cbd5e1;
      }

      .rate-item strong {
        color: var(--accent-color);
      }

      .form-control {
        width: 100%;
        padding: 16px 20px;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        font-family: inherit;
        font-size: 1rem;
        margin-bottom: 24px;
        background: var(--bg-body);
        transition: var(--transition);
      }

      .form-control:focus {
        outline: none;
        border-color: var(--accent-color);
        box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.1);
      }


      .rates-box a,
      footer a {
        color: inherit;
        text-decoration: none;
      }

      .rates-box a:hover,
      footer a:hover {
        text-decoration: underline;
      }

      .contact-card h3 {
        margin: 10px 0 18px;
        color: var(--primary-color);
        font-size: 1.8rem;
        font-weight: 800;
      }

      .contact-list {
        list-style: none;
        display: grid;
        gap: 14px;
        margin-bottom: 24px;
      }

      .contact-list li {
        color: var(--text-light);
        padding-left: 18px;
        position: relative;
      }

      .contact-list li::before {
        content: '•';
        position: absolute;
        left: 0;
        top: 0;
        color: var(--accent-color);
        font-weight: 800;
      }

      .contact-meta {
        display: grid;
        gap: 10px;
      }

      .contact-meta-item {
        padding: 14px 16px;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        background: #f8fbff;
        color: var(--text-main);
      }

      .contact-note {
        margin-top: 22px;
        color: rgba(255,255,255,0.88);
        position: relative;
        z-index: 1;
      }

      .contact-actions {
        margin-top: 20px;
        position: relative;
        z-index: 1;
      }

      .footer-logo h4 {
        color: #fff;
        margin-bottom: 16px;
        font-size: 1.35rem;
      }

      .footer-logo p {
        max-width: 560px;
      }

      .footer-bottom {
        position: relative;
        z-index: 1;
        display: flex;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
        color: #cbd5e1;
      }

      /* Footer */
      footer {
        background-color: var(--primary-color);
        color: #94a3b8;
        padding: 80px 0 40px;
        position: relative;
        overflow: hidden;
      }

      footer::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 600px;
        height: 600px;
        background: url('assets/logo.png') center/contain no-repeat;
        opacity: 0.02;
        filter: brightness(0) invert(1);
        pointer-events: none;
      }

      .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 60px;
        margin-bottom: 60px;
        padding-bottom: 60px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        position: relative;
        z-index: 1;
      }

      .footer-logo-badge {
        display: inline-flex;
        align-items: center;
        justify-content: flex-start;
        padding: 0;
        margin-bottom: 24px;
        background: transparent;
        border: 0;
        border-radius: 0;
        box-shadow: none;
      }

      .footer-logo img {
        display: block;
        width: 138px;
        filter: none;
        background: transparent;
        box-shadow: none;
      }

      .footer-col h4 {
        color: #fff;
        font-size: 1.2rem;
        margin-bottom: 24px;
        font-weight: 800;
      }

      .footer-col li {
        margin-bottom: 16px;
        font-size: 1rem;
        list-style: none;
      }

      .footer-col a:hover {
        color: #fff;
      }

      .public-email-link {
        display: inline-flex;
        align-items: center;
        gap: 0;
        flex-wrap: nowrap;
        white-space: nowrap;
        word-break: keep-all;
      }

      .email-sep {
        display: inline-block;
        margin: 0;
      }

      /* Cart Drawer */
      .cart-overlay {
        position: fixed;
        inset: 0;
        background: rgba(11, 26, 48, 0.7);
        backdrop-filter: blur(4px);
        z-index: 1999;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
      }

      .cart-drawer {
        position: fixed;
        right: 0;
        top: 0;
        width: 100%;
        max-width: 480px;
        height: 100%;
        background: var(--bg-surface);
        z-index: 2000;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        display: flex;
        flex-direction: column;
        box-shadow: var(--shadow-lg);
      }

      body.cart-open .cart-overlay {
        opacity: 1;
        visibility: visible;
      }

      body.cart-open .cart-drawer {
        transform: translateX(0);
      }

      .cart-header {
        position: relative;
        padding: 28px 32px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      }

      .cart-header::after {
        content: none;
      }

      .cart-header h2 {
        color: #fff;
        font-size: 1.55rem;
        font-weight: 800;
      }

      .close-cart {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.18);
        width: 44px;
        height: 44px;
        border-radius: 999px;
        font-size: 2rem;
        line-height: 1;
        color: #fff;
        cursor: pointer;
      }

      .cart-items {
        flex: 1;
        overflow-y: auto;
        padding: 32px;
        background: linear-gradient(180deg, #ffffff, #f8fbff);
      }

      .cart-empty-state {
        display: grid;
        gap: 10px;
        text-align: center;
        padding: 28px 20px;
        border: 1px dashed #cfe0ef;
        border-radius: 18px;
        background: #ffffff;
        color: var(--text-light);
      }

      .cart-empty-state strong {
        color: var(--primary-color);
        font-size: 1.05rem;
      }

      .cart-item {
        display: flex;
        gap: 20px;
        margin-bottom: 18px;
        padding: 18px;
        border: 1px solid #e3edf7;
        border-radius: 18px;
        background: #fff;
        box-shadow: 0 12px 28px -24px rgba(11, 26, 48, 0.35);
      }

      .cart-item-img {
        width: 80px;
        height: 80px;
        background: var(--bg-body);
        border-radius: 12px;
        padding: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border-color);
      }

      .cart-item-img img {
        max-height: 100%;
        object-fit: contain;
      }

      .cart-item-info {
        flex: 1;
      }

      .cart-item-title {
        font-weight: 800;
        color: var(--primary-color);
        margin-bottom: 8px;
        line-height: 1.3;
        font-size: 1.1rem;
      }

      .cart-item-price {
        color: var(--accent-color);
        font-weight: 800;
        margin-bottom: 6px;
        font-size: 1.05rem;
      }

      .cart-line-total {
        color: var(--text-light);
        font-size: 0.88rem;
        margin-bottom: 14px;
      }

      .qty-controls {
        display: flex;
        align-items: center;
        gap: 16px;
      }

      .qty-btn {
        background: var(--bg-body);
        border: 1px solid var(--border-color);
        width: 32px;
        height: 32px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        font-weight: bold;
        color: var(--primary-color);
        transition: var(--transition);
      }

      .qty-btn:hover {
        background: var(--border-color);
      }

      .cart-footer {
        padding: 32px;
        background: var(--bg-body);
        border-top: 1px solid var(--border-color);
      }

      .cart-note {
        margin-bottom: 18px;
        padding: 14px 16px;
        border-radius: 14px;
        background: #eef6ff;
        border: 1px solid #d9e9f7;
        color: var(--text-light);
        font-size: 0.9rem;
        line-height: 1.55;
      }

      .cart-delivery-box {
        margin-bottom: 18px;
        padding: 16px;
        border-radius: 16px;
        background: #ffffff;
        border: 1px solid #dfeaf4;
      }

      .cart-delivery-box label {
        display: block;
        margin-bottom: 10px;
        font-size: 0.86rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        color: var(--primary-color);
      }

      .cart-delivery-box select {
        width: 100%;
        border: 1px solid #cfe0ef;
        border-radius: 12px;
        padding: 13px 14px;
        background: #f8fbff;
        color: var(--text-main);
        font-size: 0.96rem;
        font-weight: 600;
      }

      .cart-summary {
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-bottom: 24px;
      }

      .cart-summary-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-main);
      }

      .cart-summary-row.tax {
        color: var(--text-light);
        font-size: 0.95rem;
      }

      .cart-summary-row.total {
        margin-top: 4px;
        padding-top: 14px;
        border-top: 1px solid var(--border-color);
        font-size: 1.55rem;
        font-weight: 800;
        color: var(--primary-color);
      }

      #cart-whatsapp-btn:disabled {
        opacity: 0.55;
        cursor: not-allowed;
        transform: none;
        box-shadow: none;
      }

      .cart-total {
        display: flex;
        justify-content: space-between;
        font-size: 1.6rem;
        font-weight: 800;
        color: var(--primary-color);
        margin-bottom: 24px;
      }

      /* Mobile Responsive */
      @media (max-width: 1024px) {
        .hero-grid,
        .about-grid,
        .contact-grid {
          grid-template-columns: 1fr;
        }
        .nav-links {
          display: none;
          position: absolute;
          top: calc(100% + 10px);
          left: 20px;
          right: 20px;
          flex-direction: column;
          align-items: flex-start;
          background: rgba(255, 255, 255, 0.98);
          border: 1px solid var(--border-color);
          border-radius: var(--radius-lg);
          padding: 24px;
          box-shadow: var(--shadow-lg);
        }
        body.mobile-nav-open .nav-links {
          display: flex;
        }
        .mobile-menu-btn {
          display: block;
        }
        .footer-grid {
          grid-template-columns: 1fr;
          gap: 40px;
        }
        .hero-bg-logo {
          right: -2%;
          width: 350px;
          height: 350px;
        }
        .catalog-brand-header {
          flex-direction: column;
          align-items: flex-start;
        }
      }

      @media (max-width: 768px) {
        .hero {
          padding: 60px 0;
        }
        .hero h1 {
          font-size: 2.5rem;
        }
        .hero p {
          font-size: 1.1rem;
        }
        .hero-bg-logo {
          top: 60%;
          right: -8%;
          width: 250px;
          height: 250px;
          opacity: 0.1;
        }
        .section-logo-repeat::after {
          width: 150px;
          height: 150px;
        }
        .card,
        .rates-box,
        .about-story-card,
        .about-motto-card {
          padding: 32px 24px;
        }
        .about-motto-card {
          padding-bottom: 116px;
        }
        .about-brand-logo {
          width: 96px;
          right: 20px;
          bottom: 18px;
        }
        .section-title {
          font-size: 2.2rem;
        }
      }


      .payment-panel {
        margin-bottom: 16px;
        padding: 18px;
        border-radius: 18px;
        background: linear-gradient(180deg, rgba(248,251,255,1) 0%, rgba(241,245,249,1) 100%);
        border: 1px solid rgba(11, 26, 48, 0.08);
        box-shadow: 0 14px 40px -30px rgba(11, 26, 48, 0.45);
      }

      .payment-panel-header {
        display: flex;
        justify-content: space-between;
        gap: 12px;
        align-items: center;
        margin-bottom: 10px;
      }

      .payment-panel-header h3 {
        margin: 4px 0 0;
        font-size: 1.08rem;
        color: var(--primary-color);
      }

      .payment-kicker {
        display: inline-flex;
        padding: 6px 10px;
        border-radius: 999px;
        background: rgba(0, 119, 182, 0.12);
        color: var(--accent-color);
        font-size: 0.74rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
      }

      .payment-badge {
        display: inline-flex;
        align-items: center;
        padding: 8px 12px;
        border-radius: 999px;
        background: rgba(11, 26, 48, 0.08);
        color: var(--primary-color);
        font-size: 0.76rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
      }

      .payment-panel-copy,
      .payment-panel-note,
      .payment-status-note {
        margin: 0;
        color: var(--text-light);
        line-height: 1.55;
        font-size: 0.92rem;
      }

      .payment-method-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin: 14px 0 12px;
      }

      .payment-method-card {
        position: relative;
        display: grid;
        gap: 6px;
        padding: 16px;
        border-radius: 16px;
        border: 1px solid rgba(11, 26, 48, 0.12);
        background: #fff;
        cursor: pointer;
        transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      }

      .payment-method-card:hover {
        transform: translateY(-1px);
        border-color: rgba(0, 119, 182, 0.26);
        box-shadow: 0 16px 34px -28px rgba(0, 119, 182, 0.55);
      }

      .payment-method-card input {
        position: absolute;
        inset: 12px 12px auto auto;
      }

      .payment-method-card strong {
        color: var(--primary-color);
        font-size: 0.95rem;
      }

      .payment-method-card span {
        color: var(--text-light);
        font-size: 0.85rem;
        line-height: 1.45;
      }

      .payment-brand-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 10px;
      }

      .payment-brand-chip {
        display: inline-flex;
        align-items: center;
        padding: 7px 10px;
        border-radius: 999px;
        background: #fff;
        border: 1px solid rgba(11, 26, 48, 0.10);
        color: var(--primary-color);
        font-size: 0.78rem;
        font-weight: 800;
      }

      .payment-panel-note {
        margin-top: 12px;
      }

      .payment-status-note {
        margin-top: 10px;
        color: #0f4c81;
        font-weight: 700;
      }

      @media (max-width: 640px) {
        .payment-method-grid {
          grid-template-columns: 1fr;
        }
      }


      body.cart-open {
        overflow: hidden;
      }

      .cart-drawer {
        max-width: 620px;
        overflow-y: auto;
        overscroll-behavior: contain;
      }

      .cart-header {
        position: sticky;
        top: 0;
        z-index: 3;
        padding: 24px 28px 20px;
      }

      .cart-header-kicker {
        display: inline-flex;
        margin-bottom: 8px;
        padding: 6px 10px;
        border-radius: 999px;
        background: rgba(255,255,255,0.12);
        color: rgba(255,255,255,0.88);
        font-size: 0.74rem;
        font-weight: 800;
        letter-spacing: 0.05em;
        text-transform: uppercase;
      }

      .cart-header-actions {
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .cart-header-link {
        border: 1px solid rgba(255,255,255,0.18);
        background: rgba(255,255,255,0.08);
        color: #fff;
        border-radius: 999px;
        padding: 10px 14px;
        font: inherit;
        font-size: 0.88rem;
        font-weight: 700;
        cursor: pointer;
      }

      .cart-items {
        flex: 0 0 auto;
        overflow: visible;
        padding: 26px 28px 20px;
      }

      .cart-items-summary-card {
        display: flex;
        justify-content: space-between;
        gap: 14px;
        align-items: center;
        margin-bottom: 18px;
        padding: 18px 20px;
        border-radius: 20px;
        background: linear-gradient(135deg, rgba(11,26,48,0.98) 0%, rgba(20,59,107,0.96) 100%);
        color: #fff;
        box-shadow: 0 20px 36px -28px rgba(11, 26, 48, 0.7);
      }

      .cart-summary-kicker {
        display: block;
        margin-bottom: 6px;
        font-size: 0.76rem;
        font-weight: 800;
        letter-spacing: 0.05em;
        text-transform: uppercase;
        color: rgba(255,255,255,0.72);
      }

      .cart-summary-total-chip {
        display: inline-flex;
        align-items: center;
        padding: 10px 14px;
        border-radius: 999px;
        background: rgba(255,255,255,0.12);
        font-size: 1rem;
        font-weight: 800;
        white-space: nowrap;
      }

      .cart-item {
        gap: 22px;
        padding: 20px;
        border-radius: 22px;
      }

      .cart-item-img {
        width: 110px;
        height: 110px;
        border-radius: 18px;
        padding: 12px;
      }

      .cart-item-topline {
        display: flex;
        justify-content: space-between;
        gap: 16px;
        align-items: flex-start;
        margin-bottom: 8px;
      }

      .cart-item-title {
        font-size: 1.14rem;
      }

      .cart-item-price {
        font-size: 1.08rem;
      }

      .cart-item-line-chip {
        display: inline-flex;
        align-items: center;
        padding: 8px 12px;
        border-radius: 999px;
        background: rgba(0,119,182,0.10);
        color: var(--accent-color);
        font-size: 0.86rem;
        font-weight: 800;
        white-space: nowrap;
      }

      .cart-line-total {
        font-size: 0.92rem;
        margin-bottom: 16px;
      }

      .qty-controls {
        gap: 18px;
      }

      .qty-btn {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        font-size: 1.05rem;
      }

      .cart-footer {
        padding: 24px 28px 28px;
      }

      .cart-action-row {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-bottom: 12px;
      }

      .cart-action-row .btn {
        width: 100%;
      }

      @media (max-width: 768px) {
        .cart-drawer {
          max-width: 100%;
        }

        .cart-header {
          padding: 20px 18px 16px;
        }


        .cart-header-actions {
          gap: 8px;
        }

        .cart-header-link {
          padding: 9px 12px;
          font-size: 0.8rem;
        }

        .cart-items,
        .cart-footer {
          padding-left: 18px;
          padding-right: 18px;
        }

        .cart-item {
          flex-direction: column;
          gap: 16px;
        }

        .cart-item-img {
          width: 100%;
          height: 160px;
        }

        .cart-item-topline {
          flex-direction: column;
          align-items: flex-start;
        }

        .cart-action-row {
          grid-template-columns: 1fr;
        }
      }


      body.checkout-open {
        overflow: hidden;
      }

      .checkout-overlay {
        position: fixed;
        inset: 0;
        background: rgba(11, 26, 48, 0.78);
        backdrop-filter: blur(6px);
        z-index: 2399;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
      }

      .checkout-screen {
        position: fixed;
        inset: 0;
        z-index: 2400;
        opacity: 0;
        visibility: hidden;
        transform: translateY(16px);
        transition: opacity .28s ease, transform .28s ease, visibility .28s ease;
        pointer-events: none;
        overflow-y: auto;
        padding: 32px 24px;
      }

      body.checkout-open .checkout-overlay {
        opacity: 1;
        visibility: visible;
      }

      body.checkout-open .checkout-screen {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
      }

      .checkout-shell {
        min-height: calc(100vh - 64px);
        display: flex;
        align-items: stretch;
        justify-content: center;
      }

      .checkout-main {
        width: min(1280px, 100%);
        background: #fff;
        border-radius: 30px;
        border: 1px solid rgba(11, 26, 48, 0.08);
        box-shadow: 0 30px 80px -40px rgba(11, 26, 48, 0.55);
        overflow: hidden;
      }

      .checkout-header {
        display: flex;
        justify-content: space-between;
        gap: 18px;
        align-items: flex-start;
        padding: 32px 34px 26px;
        background: linear-gradient(135deg, var(--primary-color) 0%, #143b6b 100%);
        color: #fff;
      }

      .checkout-header h2 {
        color: #fff;
        margin: 10px 0 10px;
        font-size: 2rem;
      }

      .checkout-header p {
        margin: 0;
        color: rgba(255,255,255,0.82);
        max-width: 560px;
      }

      .checkout-kicker,
      .checkout-card-kicker {
        display: inline-flex;
        padding: 7px 11px;
        border-radius: 999px;
        font-size: 0.76rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
      }

      .checkout-kicker {
        background: rgba(255,255,255,0.12);
        color: rgba(255,255,255,0.9);
      }

      .checkout-card-kicker {
        background: rgba(0, 119, 182, 0.10);
        color: var(--accent-color);
      }

      .checkout-header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
      }

      .checkout-close {
        color: var(--primary-color);
        background: #fff;
        border-color: rgba(11, 26, 48, 0.08);
      }

      .checkout-body-grid {
        display: grid;
        grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.88fr);
        gap: 0;
      }

      .checkout-form-column {
        padding: 32px 34px 36px;
        background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
      }

      .checkout-summary-column {
        padding: 32px 34px 36px;
        background: #f3f7fb;
        border-left: 1px solid #dfe8f1;
      }

      .checkout-card,
      .checkout-summary-card {
        border: 1px solid #dfe8f1;
        border-radius: 24px;
        background: #fff;
        box-shadow: 0 16px 42px -34px rgba(11, 26, 48, 0.45);
      }

      .checkout-card {
        padding: 24px;
        margin-bottom: 18px;
      }

      .checkout-summary-card {
        padding: 24px;
        position: sticky;
        top: 24px;
      }

      .checkout-card-head,
      .checkout-summary-top {
        display: flex;
        justify-content: space-between;
        gap: 16px;
        align-items: flex-start;
        margin-bottom: 18px;
      }

      .checkout-card-head h3,
      .checkout-summary-top h3 {
        margin: 8px 0 0;
        color: var(--primary-color);
        font-size: 1.2rem;
      }

      .checkout-badge {
        display: inline-flex;
        align-items: center;
        padding: 8px 12px;
        border-radius: 999px;
        background: rgba(11, 26, 48, 0.08);
        color: var(--primary-color);
        font-size: 0.76rem;
        font-weight: 800;
        text-transform: uppercase;
      }

      .checkout-badge.accent {
        background: rgba(0, 119, 182, 0.12);
        color: var(--accent-color);
      }

      .checkout-form-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
      }

      .checkout-form-grid.two-col .two-col-span {
        grid-column: span 2;
      }

      .checkout-field label {
        display: block;
        margin-bottom: 8px;
        font-size: 0.82rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        color: var(--primary-color);
      }

      .checkout-field input {
        width: 100%;
        border: 1px solid #cfe0ef;
        border-radius: 14px;
        padding: 14px 15px;
        background: #f8fbff;
        color: var(--text-main);
        font: inherit;
        font-size: 0.96rem;
      }

      .checkout-field input:focus {
        outline: none;
        border-color: rgba(0, 119, 182, 0.5);
        box-shadow: 0 0 0 4px rgba(0, 119, 182, 0.12);
      }

      .checkout-method-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
        margin-bottom: 18px;
      }

      .checkout-method-card {
        position: relative;
        display: grid;
        gap: 8px;
        padding: 18px;
        border-radius: 18px;
        border: 1px solid rgba(11, 26, 48, 0.12);
        background: #fff;
        cursor: pointer;
        transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
      }

      .checkout-method-card:hover,
      .checkout-method-card.active {
        transform: translateY(-1px);
        border-color: rgba(0, 119, 182, 0.28);
        box-shadow: 0 20px 34px -30px rgba(0, 119, 182, 0.45);
      }

      .checkout-method-card input {
        position: absolute;
        inset: 14px 14px auto auto;
      }

      .checkout-method-card strong {
        color: var(--primary-color);
      }

      .checkout-method-card span {
        color: var(--text-light);
        line-height: 1.5;
        font-size: 0.9rem;
      }

      .checkout-card-visual {
        border-radius: 22px;
        padding: 18px;
        background: linear-gradient(135deg, #0b1a30 0%, #173f71 100%);
      }

      .checkout-card-visual .checkout-field label {
        color: rgba(255,255,255,0.86);
      }

      .checkout-card-visual .checkout-field input {
        background: rgba(255,255,255,0.92);
      }

      .checkout-card-brand-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
      }

      .checkout-security-note {
        margin: 16px 0 0;
        color: var(--text-light);
        line-height: 1.6;
        font-size: 0.9rem;
      }

      .checkout-total-pill {
        display: inline-flex;
        align-items: center;
        padding: 10px 14px;
        border-radius: 999px;
        background: rgba(0, 119, 182, 0.10);
        color: var(--accent-color);
        font-size: 1rem;
        font-weight: 800;
      }

      .checkout-items-preview {
        display: grid;
        gap: 12px;
        margin-bottom: 20px;
      }

      .checkout-mini-summary {
        display: flex;
        justify-content: space-between;
        gap: 12px;
        padding: 12px 14px;
        border-radius: 16px;
        background: #eff6ff;
        color: var(--primary-color);
        font-size: 0.92rem;
      }

      .checkout-item-row {
        display: flex;
        justify-content: space-between;
        gap: 14px;
        padding: 13px 0;
        border-bottom: 1px solid #e6edf5;
      }

      .checkout-item-meta {
        display: grid;
        gap: 4px;
      }

      .checkout-item-meta strong {
        color: var(--primary-color);
        line-height: 1.35;
      }

      .checkout-item-meta span {
        color: var(--text-light);
        font-size: 0.9rem;
      }

      .checkout-summary-lines {
        display: grid;
        gap: 12px;
        margin-top: 8px;
      }

      .checkout-summary-line {
        display: flex;
        justify-content: space-between;
        gap: 12px;
        color: var(--text-main);
        font-weight: 700;
      }

      .checkout-summary-line.total {
        margin-top: 6px;
        padding-top: 14px;
        border-top: 1px solid #dfe8f1;
        color: var(--primary-color);
        font-size: 1.3rem;
      }

      .checkout-summary-actions {
        display: grid;
        gap: 10px;
        margin-top: 20px;
      }

      .checkout-summary-actions .btn {
        width: 100%;
      }

      .checkout-empty-box {
        padding: 18px;
        border-radius: 18px;
        border: 1px dashed #cfe0ef;
        background: #fff;
        color: var(--text-light);
        text-align: center;
      }

      @media (max-width: 1100px) {
        .checkout-body-grid {
          grid-template-columns: 1fr;
        }

        .checkout-summary-column {
          border-left: none;
          border-top: 1px solid #dfe8f1;
        }

        .checkout-summary-card {
          position: static;
        }
      }

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

        .checkout-shell {
          min-height: 100vh;
        }

        .checkout-main {
          width: 100%;
          min-height: 100vh;
          border-radius: 0;
        }

        .checkout-header,
        .checkout-form-column,
        .checkout-summary-column {
          padding-left: 18px;
          padding-right: 18px;
        }

        .checkout-header {
          flex-direction: column;
          align-items: flex-start;
        }

        .checkout-header-actions {
          width: 100%;
          justify-content: space-between;
        }

        .checkout-form-grid,
        .checkout-method-grid {
          grid-template-columns: 1fr;
        }

        .checkout-form-grid.two-col .two-col-span {
          grid-column: span 1;
        }
      }


      /* Premium checkout refresh */
      .checkout-header {
        align-items: stretch;
        gap: 24px;
        padding: 36px 38px 32px;
        background: radial-gradient(circle at top left, rgba(255,255,255,0.14), transparent 28%), linear-gradient(135deg, #0b1a30 0%, #12325f 54%, #0f6aa2 100%);
      }

      .checkout-header-copy {
        display: grid;
        gap: 14px;
      }

      .checkout-header h2 {
        max-width: 760px;
        font-size: 2.2rem;
        line-height: 1.08;
        letter-spacing: -0.03em;
      }

      .checkout-header-actions {
        flex-direction: column;
        align-items: flex-end;
        justify-content: space-between;
        min-width: 220px;
      }

      .checkout-header-trust {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 8px;
      }

      .checkout-trust-chip {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 34px;
        padding: 8px 12px;
        border-radius: 999px;
        background: rgba(255,255,255,0.12);
        border: 1px solid rgba(255,255,255,0.16);
        color: #fff;
        font-size: 0.76rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
      }

      .checkout-stepper {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
      }

      .checkout-step {
        display: inline-flex;
        align-items: center;
        min-height: 38px;
        padding: 9px 14px;
        border-radius: 999px;
        background: rgba(255,255,255,0.1);
        border: 1px solid rgba(255,255,255,0.14);
        color: rgba(255,255,255,0.72);
        font-size: 0.82rem;
        font-weight: 800;
        letter-spacing: 0.02em;
      }

      .checkout-step.is-active,
      .checkout-step.is-complete {
        background: #fff;
        color: var(--primary-color);
        border-color: rgba(255,255,255,0.6);
      }

      .checkout-feedback-banner {
        display: none;
        margin-bottom: 18px;
        padding: 14px 16px;
        border-radius: 18px;
        border: 1px solid #dbe7f3;
        background: #f8fbff;
        color: #334155;
        line-height: 1.55;
        box-shadow: 0 14px 24px -24px rgba(11,26,48,0.45);
      }

      .checkout-feedback-banner.is-visible {
        display: block;
      }

      .checkout-feedback-banner[data-tone="error"] {
        background: #fff7f7;
        border-color: rgba(190, 24, 93, 0.16);
        color: #9f1239;
      }

      .checkout-feedback-banner[data-tone="success"] {
        background: #f0fdf4;
        border-color: rgba(11, 107, 58, 0.16);
        color: #166534;
      }

      .checkout-feedback-banner[data-tone="ready"] {
        background: #eff6ff;
        border-color: rgba(0, 119, 182, 0.16);
        color: #0f4c81;
      }

      .checkout-card-priority,
      .checkout-card-payment,
      .checkout-confirm-card,
      .checkout-security-card {
        border-radius: 26px;
      }

      .checkout-card-head.compact {
        margin-bottom: 16px;
      }

      .checkout-section-intro {
        margin: 8px 0 0;
        color: var(--text-light);
        line-height: 1.6;
        font-size: 0.95rem;
      }

      .checkout-field {
        position: relative;
      }

      .checkout-field input {
        transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
      }

      .checkout-field.has-error input {
        border-color: rgba(190, 24, 93, 0.42);
        background: #fff7fb;
        box-shadow: 0 0 0 4px rgba(190, 24, 93, 0.08);
      }

      .checkout-error,
      .checkout-help {
        display: block;
        margin-top: 8px;
        font-size: 0.82rem;
        line-height: 1.45;
      }

      .checkout-error {
        min-height: 18px;
        color: #b42318;
        font-weight: 700;
      }

      .checkout-help {
        color: #64748b;
      }

      .checkout-method-card {
        gap: 10px;
        padding: 20px;
        border-radius: 22px;
        background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
      }

      .checkout-method-card.active {
        border-color: rgba(0, 119, 182, 0.34);
        box-shadow: 0 26px 36px -30px rgba(0, 119, 182, 0.4);
      }

      .checkout-method-topline {
        display: flex;
        gap: 12px;
        justify-content: space-between;
        align-items: center;
      }

      .checkout-method-pill {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 6px 10px;
        border-radius: 999px;
        background: rgba(0, 119, 182, 0.12);
        color: var(--accent-color);
        font-size: 0.72rem;
        font-weight: 800;
        text-transform: uppercase;
      }

      .checkout-method-pill.soft {
        background: rgba(11, 26, 48, 0.08);
        color: var(--primary-color);
      }

      .checkout-method-brands {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
      }

      .checkout-card-visual {
        padding: 22px;
        border-radius: 24px;
        background: linear-gradient(145deg, #0b1a30 0%, #143b6b 58%, #0b6aa0 100%);
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
      }

      .checkout-card-visual-top {
        display: flex;
        justify-content: space-between;
        gap: 12px;
        align-items: flex-start;
        flex-wrap: wrap;
      }

      .checkout-visual-kicker {
        display: inline-flex;
        margin-bottom: 8px;
        padding: 6px 10px;
        border-radius: 999px;
        background: rgba(255,255,255,0.12);
        color: rgba(255,255,255,0.86);
        font-size: 0.74rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 0.04em;
      }

      .checkout-card-demo-title {
        display: block;
        color: #fff;
        font-size: 1.1rem;
      }

      .checkout-card-brand-row.integrated {
        justify-content: flex-end;
      }

      .payment-brand-chip {
        min-height: 34px;
        padding: 8px 12px;
        border-radius: 999px;
        border: 1px solid rgba(255,255,255,0.14);
        background: rgba(255,255,255,0.14);
        color: #fff;
        font-weight: 800;
        letter-spacing: 0.01em;
      }

      .payment-brand-chip.visa { background: linear-gradient(135deg, #1a1f71, #2743d2); }
      .payment-brand-chip.mastercard { background: linear-gradient(135deg, #eb001b, #f79e1b); }
      .payment-brand-chip.amex { background: linear-gradient(135deg, #006fcf, #00a4e4); }
      .payment-brand-chip.discover { background: linear-gradient(135deg, #ff6600, #ff9a2a); }
      .payment-brand-chip.debit { background: linear-gradient(135deg, #0f172a, #334155); }
      .payment-brand-chip.secure { background: linear-gradient(135deg, #0b6b3a, #0ea35a); }

      .checkout-security-card {
        background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
      }

      .checkout-security-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 12px;
      }

      .checkout-security-item {
        padding: 16px;
        border-radius: 18px;
        background: #f8fbff;
        border: 1px solid #dce7f2;
        display: grid;
        gap: 8px;
      }

      .checkout-security-item strong {
        color: var(--primary-color);
      }

      .checkout-security-item span {
        color: var(--text-light);
        line-height: 1.55;
        font-size: 0.92rem;
      }

      .checkout-confirmation-preview {
        display: grid;
        gap: 14px;
      }

      .checkout-confirm-placeholder {
        padding: 18px;
        border-radius: 18px;
        background: #f8fbff;
        border: 1px dashed #c7d9e9;
        color: #64748b;
        line-height: 1.65;
      }

      .checkout-confirm-grid {
        display: grid;
        gap: 12px;
      }

      .checkout-confirm-row {
        display: flex;
        justify-content: space-between;
        gap: 16px;
        padding: 15px 16px;
        border-radius: 18px;
        background: #f8fbff;
        border: 1px solid #dfe8f1;
      }

      .checkout-confirm-row span {
        color: #64748b;
        font-size: 0.88rem;
      }

      .checkout-confirm-row strong {
        color: var(--primary-color);
      }

      .checkout-summary-top.premium {
        align-items: flex-start;
      }

      .checkout-summary-trust-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 16px;
      }

      .checkout-summary-chip {
        display: inline-flex;
        align-items: center;
        padding: 8px 12px;
        border-radius: 999px;
        background: #fff;
        border: 1px solid #dbe7f3;
        color: var(--primary-color);
        font-size: 0.78rem;
        font-weight: 800;
      }

      .checkout-items-preview {
        display: grid;
        gap: 12px;
      }

      .checkout-mini-summary {
        padding: 16px 18px;
        border-radius: 20px;
        background: linear-gradient(135deg, #0b1a30 0%, #173f71 100%);
        color: #fff;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
      }

      .checkout-mini-summary strong {
        font-size: 1rem;
      }

      .checkout-mini-summary span {
        color: rgba(255,255,255,0.82);
      }

      .checkout-item-row {
        align-items: center;
        gap: 14px;
        padding: 14px;
        border-radius: 18px;
        background: #fff;
        border: 1px solid #dfe8f1;
      }

      .checkout-item-row img {
        width: 62px;
        height: 62px;
        object-fit: contain;
        border-radius: 16px;
        background: linear-gradient(180deg, #ffffff 0%, #f4f8fc 100%);
        border: 1px solid #e5edf5;
        padding: 8px;
        flex-shrink: 0;
      }

      .checkout-item-meta {
        flex: 1;
      }

      .checkout-item-meta strong {
        display: block;
        margin-bottom: 6px;
      }

      .checkout-item-price-chip {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 102px;
        padding: 10px 12px;
        border-radius: 999px;
        background: rgba(0, 119, 182, 0.08);
        color: var(--accent-color);
        font-weight: 800;
      }

      .checkout-summary-lines.premium {
        margin-top: 18px;
      }

      .checkout-summary-line {
        padding: 15px 0;
      }

      .checkout-summary-note-box {
        display: grid;
        gap: 8px;
        margin-top: 18px;
        padding: 16px 18px;
        border-radius: 18px;
        background: #fff;
        border: 1px solid #dfe8f1;
      }

      .checkout-summary-note-box strong {
        color: var(--primary-color);
      }

      .checkout-summary-note-box span {
        color: var(--text-light);
        line-height: 1.6;
        font-size: 0.92rem;
      }

      .checkout-summary-actions.premium {
        margin-top: 18px;
        display: grid;
        gap: 10px;
      }

      .checkout-summary-actions .btn-success {
        background: linear-gradient(135deg, #0b6b3a 0%, #0e8f4e 100%);
        color: #fff;
        border: none;
      }

      .checkout-success-box {
        margin-top: 12px;
        padding: 18px;
        border-radius: 22px;
        background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
        border: 1px solid rgba(11, 107, 58, 0.18);
        box-shadow: 0 18px 34px -28px rgba(11, 107, 58, 0.45);
      }

      .checkout-success-box h4 {
        margin: 0 0 8px;
        color: #166534;
        font-size: 1.08rem;
      }

      .checkout-success-box p {
        margin: 0;
        color: #166534;
        line-height: 1.6;
      }

      .checkout-success-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 16px;
      }

      .checkout-success-actions .btn {
        min-width: 180px;
      }

      body.checkout-step-confirm .checkout-summary-card {
        border-color: rgba(0, 119, 182, 0.16);
        box-shadow: 0 28px 40px -34px rgba(0, 119, 182, 0.36);
      }

      @media (max-width: 1024px) {
        .checkout-security-grid {
          grid-template-columns: 1fr;
        }
      }

      @media (max-width: 768px) {
        .checkout-header {
          padding: 28px 22px 24px;
        }

        .checkout-header-actions {
          align-items: stretch;
          min-width: 100%;
        }

        .checkout-header-trust {
          justify-content: flex-start;
        }

        .checkout-card-visual-top,
        .checkout-confirm-row,
        .checkout-mini-summary {
          flex-direction: column;
          align-items: flex-start;
        }

        .checkout-item-row {
          grid-template-columns: 1fr;
        }
      }


      /* Premium payment brand logos v3 */
      .checkout-method-brands,
      .checkout-card-brand-row.integrated {
        gap: 12px;
      }

      .payment-brand-chip {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 118px;
        min-height: 48px;
        padding: 10px 16px;
        border-radius: 17px;
        overflow: hidden;
        isolation: isolate;
        font-size: 0.92rem;
        font-weight: 900;
        letter-spacing: 0.01em;
        text-transform: none;
        box-shadow: 0 18px 30px -24px rgba(11, 26, 48, 0.58), inset 0 1px 0 rgba(255,255,255,0.38);
        backdrop-filter: blur(8px);
      }

      .payment-brand-chip::before,
      .payment-brand-chip::after {
        content: '';
        position: absolute;
        pointer-events: none;
        z-index: -1;
      }

      .payment-brand-chip.visa {
        color: #172b85;
        background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(242,247,255,0.96) 100%);
        border: 1px solid rgba(23, 43, 133, 0.12);
        text-shadow: 0 1px 0 rgba(255,255,255,0.9);
      }

      .payment-brand-chip.visa::before {
        inset: 0;
        background: linear-gradient(135deg, rgba(255,255,255,0.92) 0%, rgba(233,240,255,0.86) 100%);
      }

      .payment-brand-chip.visa::after {
        left: 0;
        right: 0;
        bottom: 0;
        height: 7px;
        background: linear-gradient(90deg, #1a1f71 0%, #2847d8 68%, #f7b600 68%, #ffd76a 100%);
      }

      .payment-brand-chip.mastercard {
        justify-content: flex-start;
        padding-left: 58px;
        color: #111827;
        background: linear-gradient(180deg, rgba(255,255,255,0.99) 0%, rgba(255,248,246,0.97) 100%);
        border: 1px solid rgba(17, 24, 39, 0.08);
      }

      .payment-brand-chip.mastercard::before,
      .payment-brand-chip.mastercard::after {
        top: 50%;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        transform: translateY(-50%);
        opacity: 0.98;
      }

      .payment-brand-chip.mastercard::before {
        left: 16px;
        background: radial-gradient(circle at 35% 35%, #ff6a6a 0%, #eb001b 70%);
      }

      .payment-brand-chip.mastercard::after {
        left: 30px;
        background: radial-gradient(circle at 35% 35%, #ffcf70 0%, #f79e1b 70%);
        mix-blend-mode: multiply;
      }

      .payment-brand-chip.amex {
        color: #ffffff;
        border: 1px solid rgba(255,255,255,0.20);
        background: linear-gradient(160deg, #13acef 0%, #0076d6 60%, #0058b8 100%);
        box-shadow: 0 20px 30px -22px rgba(0, 111, 207, 0.72), inset 0 1px 0 rgba(255,255,255,0.28);
      }

      .payment-brand-chip.amex::before {
        inset: 7px;
        border-radius: 11px;
        border: 1px solid rgba(255,255,255,0.26);
      }

      .payment-brand-chip.amex::after {
        inset: 0;
        background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0));
      }

      .payment-brand-chip.applepay {
        justify-content: flex-start;
        padding-left: 50px;
        color: #ffffff;
        border: 1px solid rgba(255,255,255,0.16);
        background: linear-gradient(160deg, #0a0a0b 0%, #16181d 52%, #2a2f38 100%);
        box-shadow: 0 20px 34px -24px rgba(0, 0, 0, 0.72), inset 0 1px 0 rgba(255,255,255,0.18);
      }

      .payment-brand-chip.applepay::before {
        content: '';
        left: 18px;
        top: 50%;
        transform: translateY(-54%);
        width: auto;
        height: auto;
        z-index: 0;
        font-size: 1.15rem;
        font-weight: 700;
        color: rgba(255,255,255,0.96);
      }

      .payment-brand-chip.applepay::after {
        inset: 0;
        background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.02) 35%, rgba(255,255,255,0));
      }

      .payment-brand-chip.debit {
        background: linear-gradient(135deg, #0f172a 0%, #334155 100%);
        color: #f8fafc;
        border: 1px solid rgba(255,255,255,0.12);
      }

      .payment-brand-chip.secure {
        background: linear-gradient(135deg, #0b6b3a 0%, #0ea35a 100%);
        color: #f0fdf4;
        border: 1px solid rgba(255,255,255,0.14);
      }

      @media (max-width: 768px) {
        .payment-brand-chip {
          min-width: 98px;
          min-height: 42px;
          font-size: 0.84rem;
          padding: 9px 14px;
        }

        .payment-brand-chip.mastercard {
          padding-left: 50px;
        }
      }


/* Phase 4 Stripe Payment Element production bridge */
.checkout-card-visual-stripe {
  display: grid;
  gap: 18px;
}

.checkout-stripe-shell {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.checkout-stripe-shell-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.checkout-stripe-shell-head strong {
  display: block;
  color: #ffffff;
  margin-bottom: 6px;
  font-size: 1rem;
}

.checkout-stripe-shell-head span {
  color: rgba(255,255,255,0.76);
  line-height: 1.6;
  font-size: 0.92rem;
}

.checkout-session-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.16);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.checkout-session-chip.is-ready {
  background: rgba(14, 165, 233, 0.18);
  border-color: rgba(125, 211, 252, 0.38);
}

.checkout-session-chip.is-success {
  background: rgba(34, 197, 94, 0.16);
  border-color: rgba(134, 239, 172, 0.36);
}

.checkout-session-chip.is-warning {
  background: rgba(245, 158, 11, 0.16);
  border-color: rgba(253, 224, 71, 0.30);
}

.checkout-stripe-panel {
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,250,255,0.98) 100%);
  border: 1px solid rgba(207, 226, 242, 0.72);
  padding: 18px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.82);
}

.checkout-payment-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 108px;
  padding: 18px;
  border-radius: 18px;
  border: 1px dashed #c7d9e9;
  background: #f8fbff;
  color: #475569;
  text-align: center;
  line-height: 1.65;
  font-size: 0.94rem;
}

.checkout-payment-element {
  min-height: 132px;
}

.checkout-payment-element.is-mounted {
  display: block;
}

.checkout-payment-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.checkout-payment-actions .btn {
  min-width: 220px;
}

.checkout-payment-message {
  flex: 1;
  min-width: 220px;
  color: rgba(255,255,255,0.82);
  line-height: 1.6;
  font-size: 0.9rem;
}

.checkout-payment-message.is-error {
  color: #fecaca;
}

.checkout-payment-message.is-success {
  color: #bbf7d0;
}

.checkout-confirm-row .checkout-confirm-inline-note {
  display: block;
  margin-top: 6px;
  color: #64748b;
  font-size: 0.82rem;
  line-height: 1.55;
}

.checkout-success-box .checkout-order-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.checkout-success-box .checkout-order-meta div {
  padding: 12px 14px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid rgba(22, 101, 52, 0.10);
}

.checkout-success-box .checkout-order-meta span {
  display: block;
  margin-bottom: 4px;
  color: #15803d;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.checkout-success-box .checkout-order-meta strong {
  color: #166534;
  font-size: 0.96rem;
}

@media (max-width: 768px) {
  .checkout-stripe-shell-head,
  .checkout-payment-actions,
  .checkout-success-box .checkout-order-meta {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }

  .checkout-payment-actions .btn {
    width: 100%;
  }
}