body {
            background:#f4f7fb;
            font-family: "Roboto", Arial, sans-serif;
        }

        .vcard-wrapper {
            max-width: 380px;
            margin: 40px auto;
        }

        .vcard-card {
            border: none;
            border-radius: 24px;
            box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            background: #ffffff;
                    position: relative; /* para ubicar la topbar absoluta sobre el header */
        }

        /* Topbar blanco para la marca */
        .vcard-topbar {
            background: #ffffff;
            padding: 4px 10px;            /* menos espacio arriba/abajo */
            display: flex;
            justify-content: space-between; /* logo izquierda, acciones derecha */
            align-items: center;
            border-bottom: 1px solid #edf0f5;
            position: absolute;           /* sobrepone al header para ver el banner debajo */
            top: 0; left: 0; right: 0;
            z-index: 3;
            box-shadow: 0 4px 10px -6px rgba(0,0,0,0.25); /* ligera sombra inferior */
        }
        /* Variante glass si hay opacidad */
        .vcard-topbar.glass {
            -webkit-backdrop-filter: saturate(160%) blur(8px);
            backdrop-filter: saturate(160%) blur(8px);
            border-bottom-color: rgba(0,0,0,.08);
        }
        .topbar-left { display:flex; align-items:center; }
        .topbar-right { display:flex; align-items:center; gap:8px; }
        .icon-btn {
            border: none;
            background: transparent;
            color: #57606a;
            width: 34px; height: 34px;
            border-radius: 8px;
            display: inline-flex; align-items:center; justify-content:center;
        }
        .icon-btn:hover { background: rgba(0,0,0,0.06); color:#111827; }

        /* Switch de tema ON/OFF 3D */
        .theme-switch { display:inline-flex; align-items:center; }
        .theme-switch input { position:absolute; opacity:0; pointer-events:none; }
        .theme-switch .switch {
            position: relative;
            width: 64px;
            height: 30px;
            border-radius: 999px;
            background: linear-gradient(180deg,#f2f4f8 0%, #e5e9f0 100%);
            border: 1px solid #d5dbe6;
            box-shadow: inset 0 2px 4px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.06);
            display: inline-flex; align-items:center; justify-content:center;
            cursor: pointer;
            transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
            padding: 0 10px;
        }
        .theme-switch .icon { position:absolute; font-size: 13px; opacity:.8; transition: opacity .25s ease, transform .25s ease; }
        .theme-switch .icon.left { left: 10px; color:#f59e0b; }
        .theme-switch .icon.right { right: 10px; color:#94a3b8; }
        .theme-switch .knob {
            position: absolute; top: 2px; left: 2px;
            width: 26px; height: 26px; border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffffff, #e9eef6 65%, #d4dbe7);
            box-shadow: 0 3px 8px rgba(0,0,0,.18), inset 0 -2px 4px rgba(0,0,0,.08);
            transition: transform .25s ease;
        }
        /* Checked (oscuro) */
        .theme-switch input:checked + .switch {
            background: linear-gradient(180deg,#1f2937 0%, #0f172a 100%);
            border-color: #0b1220;
            box-shadow: inset 0 2px 6px rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.25);
        }
        .theme-switch input:checked + .switch .knob { transform: translateX(34px); }
        .theme-switch input:checked + .switch .icon.left { opacity:.35; }
        .theme-switch input:checked + .switch .icon.right { opacity:1; color:#e5e7eb; }

        /* Header con gradiente (o banner) */
        .vcard-header {
            position: relative;
            padding: 20px 20px 110px 20px;
            text-align: center;
            color: #fff;
            background: linear-gradient(135deg, #467ef9, #32d3b0);
            background-size: cover;
            background-position: top center;
            background-repeat: no-repeat;
            border-top-left-radius: 0;
            border-top-right-radius: 0;
        }
        
        /* Si hay banner, se sobrescribe el gradiente */
        .vcard-header.has-banner {
            background-blend-mode: overlay;
        }

        .vcard-header::after {
            content: "";
            position: absolute;
            left: -40px;
            right: -40px;
            bottom: -35px;
            height: 70px;
            background: #fff;
            border-radius: 50%;
            z-index: 0;
        }

        .vcard-header > * {
            position: relative;
            z-index: 1;
        }

        /* Brand/logo superior en el header */
        .vcard-brand {
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0;               /* sin espacio extra abajo */
        }
        .vcard-brand img {
            height: 72px;            /* reduce alto del logo */
            max-height: 72px;
            max-width: 75%;
            object-fit: contain;
            filter: drop-shadow(0 1px 2px rgba(0,0,0,.25));
        }

        /* Modo oscuro */
        body.dark-mode { background: #0f1216; }
        body.dark-mode .vcard-topbar { background:#0f1216; border-bottom-color:#1f2730; box-shadow: 0 6px 16px -8px rgba(0,0,0,.55); }
        body.dark-mode .icon-btn { color:#cbd5e1; }
        body.dark-mode .icon-btn:hover { background: rgba(255,255,255,.08); color:#fff; }
        body.dark-mode .vcard-card { background:#121721; color:#e5e7eb; }
        body.dark-mode .info-label { color:#9aa5b1; }
        body.dark-mode .info-text { color:#e5e7eb; }
        body.dark-mode .info-icon { background:#1e293b; color:#cbd5e1; }
        body.dark-mode .divider { background:#273343; }
        /* Pie curvo del header en modo oscuro */
        body.dark-mode .vcard-header::after { background:#0f1216; }
        /* Ajustes extra: info blocks y social container en oscuro */
        body.dark-mode .info-block {
            background:#121721; /* contenedor oscuro */
            box-shadow: 0 6px 18px rgba(0,0,0,.35);
        }
        body.dark-mode .info-text a { color:#93c5fd; }
        body.dark-mode .info-text a:hover { color:#bfdbfe; }
        body.dark-mode .social-item {
            background:#121721;
            box-shadow: 0 6px 18px rgba(0,0,0,.35);
            color:#e5e7eb;
        }
        body.dark-mode .social-type { color:#9aa5b1; }

        .vcard-avatar {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -30px;
            width: 130px;   /* +35% */
            height: 130px;  /* +35% */
            border-radius: 50%;
            border: 6px solid #fff;
            overflow: hidden;
            box-shadow: 0 12px 30px rgba(0,0,0,0.18);
            background: #fff;
            z-index: 2;
        }

        .vcard-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .vcard-name {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: .05em;
            text-transform: uppercase;
            text-shadow: 0 1px 3px rgba(0,0,0,0.3);
        }

        .vcard-role {
            font-size: 0.95rem;
            opacity: 0.9;
            text-shadow: 0 1px 3px rgba(0,0,0,0.2);
        }

        .vcard-company {
            font-size: 0.85rem;
            opacity: 0.9;
            text-shadow: 0 1px 3px rgba(0,0,0,0.2);
        }

        .vcard-body {
            padding: 52px 22px 24px; 
        }

        .vcard-summary {
            font-size: 0.9rem;
            color: #6c757d;
            text-align: center;
            margin-bottom: 20px;
        }

        .vcard-actions {
            display:flex;
            justify-content:center;
            margin-bottom: 18px;
        }

        .vcard-actions .btn-circle {
            width:52px;
            height:52px;
            border-radius:50%;
            margin:0 6px;
            box-shadow:0 10px 25px rgba(0,0,0,.08);
            border: none;
        }

        /* Bloques de info */
        .info-block {
            background:#ffffff;
            border-radius:14px;
            padding:14px 16px;
            margin-bottom: 8px;
            display:flex;
            align-items:flex-start;
        }

        /* Añadir un borde superior a cada bloque de info excepto el primero */
        .info-block + .info-block {
            border-top: 1px solid #f0f0f0;
            padding-top: 14px;
        }

        .info-icon {
            width:32px;
            height:32px;
            border-radius:50%;
            background:#f5f7fb;
            display:flex;
            align-items:center;
            justify-content:center;
            margin-right:12px;
            flex-shrink:0;
            color:#6c757d;
        }

        .info-label {
            font-size: 0.70rem;
            text-transform: uppercase;
            color:#a0a8b3;
            margin-bottom: 0;
        }

        .info-text {
            font-size: 0.90rem;
            color:#212529;
            margin-bottom: 0;
            word-break: break-word;
        }

        .divider {
            height:1px;
            background:#edf0f5;
            margin:18px 0 12px;
        }

        .section-title {
            font-size: 1.0rem;
            font-weight:600;
            margin-bottom:10px;
            color:#131d29;
        }

        /* Social cards */
        .social-item {
            display:flex;
            align-items:center;
            justify-content:space-between;
            padding:9px 12px;
            border-radius:10px;
            background:#ffffff;
            box-shadow:0 4px 18px rgba(0,0,0,.05);
            margin-bottom:8px;
            cursor:pointer;
            text-decoration:none !important;
            color:inherit;
        }

        .social-left {
            display:flex;
            align-items:center;
        }

        .social-icon {
            width:38px;
            height:38px;
            border-radius:10px;
            display:flex;
            align-items:center;
            justify-content:center;
            margin-right:10px;
            color:#fff;
            font-size:1.1rem;
        }

        .social-name {
            font-size:0.95rem;
            font-weight:500;
        }

        .social-type {
            font-size:0.72rem;
            color:#9aa1ae;
        }

        .btn-add-contact {
            width:100%;
            margin-top:10px;
            border-radius:20px;
            font-weight:500;
        }

        /* Colores dinámicos (se sobrescriben desde JS) */
        .bg-primary-gradient {
            background: linear-gradient(135deg, #467ef9, #32d3b0);
        }

        .btn-main {
            background:#467ef9;
            border-color:#467ef9;
        }

        .btn-main:hover {
            background:#2f61d8;
            border-color:#2f61d8;
        }

        @media (max-width: 575.98px) {
            .vcard-wrapper {
                max-width: none;
                width: 100%;
                margin: 12px 0 16px;
                padding: 0 12px 16px;
            }

            .vcard-card {
                border-radius: 16px;
                box-shadow: 0 12px 24px rgba(0,0,0,0.06);
            }

            /* Loader styles */
            #loader {
                position: fixed;
                left: 0;
                top: 0;
                right: 0;
                bottom: 0;
                background: rgba(255,255,255,0.95);
                display: flex;
                align-items: center;
                justify-content: center;
                flex-direction: column;
                z-index: 9999;
            }
            #loader-logo {
                width: 120px;
                max-width: 40%;
                margin-bottom: 18px;
            }
            /* Ocultar el logo del loader hasta definir el correcto */
            #loader-logo.loader-logo-hidden {
                opacity: 0;
                visibility: hidden;
            }
            #loader-logo.loader-logo-show {
                opacity: 1;
                visibility: visible;
                transition: opacity .2s ease;
            }
            .rainbow-spinner {
                width: 56px;
                height: 56px;
                border-radius: 50%;
                background: conic-gradient(#467ef9,#32d3b0,#f9c946,#c76f27,#467ef9);
                animation: rotate 1.2s linear infinite;
            }
            @keyframes rotate {
                from { transform: rotate(0deg); }
                to { transform: rotate(360deg); }
            }

            /* Utility to hide loader */
            .loader-hidden { display: none !important; }

            /* Avatar hover / touch bounce effect */
            .vcard-avatar { transition: transform 700ms cubic-bezier(0.2,0.8,0.2,1); }
            .vcard-avatar img#cardAvatar {
                transition: transform 700ms cubic-bezier(0.2,0.8,0.2,1), box-shadow 700ms cubic-bezier(0.2,0.8,0.2,1);
                transform-origin: center center;
                cursor: pointer;
            }
            .vcard-avatar:hover img#cardAvatar { transform: scale(1.12); box-shadow: 0 18px 40px rgba(0,0,0,0.18); }

            /* For smaller devices, keep the effect gentler */
            @media (max-width: 575.98px) {
                .vcard-avatar:hover img#cardAvatar { transform: scale(1.08); }
            }

            /* QR containers clickable */
            #qrcodeDisplay, #qrcodePreview, #shareQRCode { cursor: pointer; }

            .vcard-header {
                padding: 20px 16px 110px 20px;
            }

            .vcard-name {
                /* Tamaño de fuente fluido: se ajusta al 3.8% del ancho del viewport,
                   con un máximo de 1.1rem para no ser demasiado grande en pantallas anchas. */
                font-size: clamp(0.8rem, 3.8vw, 1.1rem);
                white-space: normal; /* Permitir que el texto se ajuste si es necesario */
                line-height: 1.2;
            }            .vcard-role {
                font-size: 0.8rem;
            }

            .vcard-company {
                font-size: 0.75rem;
            }

            .vcard-body {
                padding: 48px 16px 20px;
            }
        }