/* ========== VARIABLES DE PERSONALIZACIÓN ========== */
:root {
    /* Colores principales - PERSONALIZA AQUÍ */
    --card-primary: #74C0FC;
    --card-secondary: #5DEBD7;
    --card-bg-dark: #070a2a;
    --card-bg-medium: #1a1f3a;
    --card-bg-light: #2d2e4a;
    --card-text: #ffffff;
    --card-text-secondary: #b0b0b0;
    
    /* Tamaños */
    --card-max-width: 450px;
    --card-border-radius: 20px;
    --card-padding: 30px 25px;
}

/* ========== ESTILOS BASE ========== */
body {
    background: linear-gradient(135deg, var(--card-bg-dark) 0%, var(--card-bg-medium) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    margin: 0;
    font-family: "Rubik", sans-serif;
}

.business-card {
    background: linear-gradient(135deg, var(--card-bg-medium) 0%, var(--card-bg-light) 100%);
    border: 3px solid var(--card-primary);
    border-radius: var(--card-border-radius);
    max-width: var(--card-max-width);
    width: 100%;
    padding: var(--card-padding);
    box-shadow: 0 30px 60px rgba(116, 192, 252, 0.3);
    position: relative;
    overflow: hidden;
}

/* Efecto decorativo animado */
.business-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(93, 235, 215, 0.1) 0%, transparent 70%);
    animation: pulse 4s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

/* ========== HEADER ========== */
.card-header {
    text-align: center;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.logo-container {
    width: 80px;
    height: 80px;
    margin: 0 auto 12px;
    background: linear-gradient(135deg, var(--card-primary) 0%, var(--card-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(116, 192, 252, 0.4);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.logo-container img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.company-name {
    font-size: 28px;
    font-weight: 700;
    color: var(--card-text);
    margin: 10px 0 5px;
    letter-spacing: 2px;
}

.tagline {
    font-size: 14px;
    color: var(--card-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.divider {
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--card-primary) 0%, var(--card-secondary) 100%);
    margin: 12px auto;
    border-radius: 10px;
}

/* ========== INFORMACIÓN DE CONTACTO ========== */
.contact-info {
    margin: 15px 0;
    position: relative;
    z-index: 1;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin: 8px 0;
    background: rgba(116, 192, 252, 0.05);
    border: 1px solid rgba(116, 192, 252, 0.2);
    border-radius: 10px;
    color: var(--card-text);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(116, 192, 252, 0.1);
    border-color: var(--card-primary);
    transform: translateX(5px);
}

.contact-icon {
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, var(--card-primary) 0%, var(--card-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--card-bg-dark);
    flex-shrink: 0;
}

.contact-text {
    font-size: 14px;
    font-weight: 500;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.copy-btn,
.action-icon {
    width: 30px;
    height: 30px;
    background: rgba(116, 192, 252, 0.1);
    border: 1px solid var(--card-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--card-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    text-decoration: none;
}

.copy-btn:hover,
.action-icon:hover {
    background: var(--card-primary);
    color: var(--card-bg-dark);
    transform: scale(1.1);
}

/* ========== REDES SOCIALES ========== */
.social-links {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 20px 0;
    position: relative;
    z-index: 1;
}

.social-btn {
    width: 45px;
    height: 45px;
    background: rgba(116, 192, 252, 0.1);
    border: 2px solid var(--card-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--card-primary);
    font-size: 18px;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
}

.social-btn:hover {
    background: linear-gradient(135deg, var(--card-primary) 0%, var(--card-secondary) 100%);
    color: var(--card-bg-dark);
    transform: translateY(-5px) rotate(360deg);
    box-shadow: 0 10px 20px rgba(116, 192, 252, 0.4);
}

/* ========== BOTONES DE ACCIÓN ========== */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
    position: relative;
    z-index: 1;
}

.action-btn {
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--card-primary) 0%, var(--card-secondary) 100%);
    border: none;
    border-radius: 10px;
    color: var(--card-bg-dark);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(116, 192, 252, 0.4);
}

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

.action-btn.secondary:hover {
    background: rgba(116, 192, 252, 0.1);
}

/* ========== SECCIÓN QR ========== */
.qr-section {
    margin-top: 20px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.qr-toggle {
    padding: 10px 25px;
    background: rgba(93, 235, 215, 0.1);
    border: 2px solid var(--card-secondary);
    border-radius: 10px;
    color: var(--card-secondary);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.qr-toggle:hover {
    background: rgba(93, 235, 215, 0.2);
    transform: scale(1.05);
}

/* Modal/Dialog del QR */
.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.qr-modal.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.qr-dialog {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    padding: 40px;
    max-width: 400px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
    text-align: center;
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to { 
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.qr-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 35px;
    height: 35px;
    background: rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #333;
    transition: all 0.3s ease;
}

.qr-close:hover {
    background: rgba(0, 0, 0, 0.2);
    transform: rotate(90deg);
}

.qr-dialog-header {
    margin-bottom: 25px;
}

.qr-dialog-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin: 0 0 10px 0;
}

.qr-dialog-header p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.qr-code-container {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display: inline-block;
}

.qr-code-container img,
.qr-code-container canvas {
    width: 220px;
    height: 220px;
    display: block;
}

.qr-dialog-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.qr-info {
    font-size: 13px;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.qr-info i {
    color: var(--card-primary);
}

.qr-download-btn {
    padding: 12px 25px;
    background: linear-gradient(135deg, var(--card-primary) 0%, var(--card-secondary) 100%);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.qr-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(116, 192, 252, 0.4);
}

@media (max-width: 500px) {
    .qr-dialog {
        padding: 30px 20px;
    }
    
    .qr-code-container img {
        width: 180px;
        height: 180px;
    }
    
    .qr-dialog-header h3 {
        font-size: 20px;
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 500px) {
    .business-card {
        padding: 25px 20px;
    }
    .logo-container {
        width: 70px;
        height: 70px;
    }
    .logo-container img {
        width: 50px;
        height: 50px;
    }
    .company-name {
        font-size: 24px;
        letter-spacing: 1px;
    }
    .tagline {
        font-size: 13px;
    }
    .contact-item {
        gap: 8px;
        padding: 8px 10px;
    }
    .contact-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    .contact-text {
        font-size: 13px;
    }
    .copy-btn,
    .action-icon {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    .social-links {
        gap: 10px;
    }
    .social-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    .action-btn {
        padding: 10px 18px;
        font-size: 14px;
    }
    .qr-toggle {
        padding: 8px 20px;
        font-size: 13px;
    }
}