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

:root {
    --azul-claro: #4A90E2;
    --azul-profundo: #1A237E;
    --blanco: #FFFFFF;
    --negro: #000000;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--blanco);
    color: var(--negro);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    text-align: center;
    color: var(--blanco);
    margin-bottom: 50px;
    padding: 40px 20px;
    background: var(--azul-profundo);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.logo {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    object-fit: cover;
}

.header-text h1 {
    font-size: 2em;
    margin: 0;
    margin-bottom: 5px;
    font-weight: 600;
}

.header-text h2 {
    font-size: 1.8em;
    margin: 0;
    margin-bottom: 10px;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

.header-text p {
    font-size: 1em;
    margin: 0;
    opacity: 0.95;
}

.servicios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.tarjeta {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tarjeta:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.tarjeta-header {
    background: var(--azul-profundo);
    color: var(--blanco);
    padding: 20px;
    min-height: 100px;
    display: flex;
    align-items: center;
}

.tarjeta-header h3 {
    font-size: 1.3em;
    line-height: 1.4;
}

.tarjeta-body {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.precio-section {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.precio-label {
    font-size: 0.85em;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.precio {
    font-size: 2em;
    font-weight: bold;
    color: var(--azul-claro);
}

.precio-nota {
    font-size: 0.8em;
    color: #666;
    margin-top: 5px;
    font-style: italic;
}

.requisitos-section {
    flex-grow: 1;
    margin-bottom: 20px;
}

.requisitos-label {
    font-size: 0.85em;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.requisitos-list {
    list-style: none;
    font-size: 0.95em;
    color: #555;
    line-height: 1.6;
}

.requisitos-list li {
    padding-left: 20px;
    position: relative;
    margin-bottom: 8px;
}

.requisitos-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--azul-claro);
    font-weight: bold;
}

.info-adicional {
    font-size: 0.85em;
    background: #f9f9f9;
    padding: 12px;
    border-radius: 8px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.5;
}

.tarjeta-footer {
    padding: 0 25px 25px 25px;
    margin-top: auto;
    display: flex;
    gap: 12px;
}

.btn-grupo {
    display: flex;
    gap: 12px;
    width: 100%;
}

.btn-whatsapp,
.btn-square {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 8px;
    font-size: 0.95em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    min-height: 48px;
}

.btn-whatsapp {
    background: #25d366;
    color: var(--blanco);
}

.btn-whatsapp:hover {
    background: #20ba5e;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.4);
}

.btn-square {
    background: var(--azul-profundo);
    color: var(--blanco);
}

.btn-square:hover {
    background: var(--azul-claro);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 35, 126, 0.4);
}

.btn-whatsapp:active,
.btn-square:active {
    transform: scale(0.98);
}

.whatsapp-icon,
.square-icon {
    font-size: 1.1em;
}

.footer {
    text-align: center;
    color: var(--negro);
    margin-top: 50px;
    padding: 20px;
    font-size: 0.9em;
}

.footer p {
    margin-bottom: 10px;
    line-height: 1.6;
}

.netz-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 30px;
    padding: 15px 20px;
    background: var(--azul-profundo);
    color: var(--blanco);
    border-radius: 12px;
    font-size: 0.85em;
    text-align: center;
}

.netz-footer img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 6px;
    background: var(--blanco);
    padding: 4px;
}

.netz-footer p {
    margin: 0;
}

@media (max-width: 768px) {
    .netz-footer {
        flex-direction: column;
        gap: 8px;
    }

    .header-content {
        flex-direction: column;
        gap: 20px;
    }

    .logo {
        width: 100px;
        height: 100px;
    }

    .header-text h1 {
        font-size: 1.5em;
    }

    .header-text h2 {
        font-size: 1.3em;
    }

    .header-text p {
        font-size: 0.9em;
    }

    .servicios-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .tarjeta-header h3 {
        font-size: 1.1em;
    }

    .precio {
        font-size: 1.8em;
    }

    .btn-whatsapp,
    .btn-square {
        font-size: 0.85em;
        padding: 10px 12px;
        min-height: 44px;
    }
}