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

.html {
    scroll-behavior: smooth;
}

.body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(
        45deg, 
        #734f1b, 
        #a67c00, 
        #d4af37, 
        #8c6910, 
        #734f1b
    );
    color: #e2e8f0;
    line-height: 1.6;
    min-height: 100vh;
}


.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}


.btn-back {
    position: fixed;
    top: 30px;
    left: 30px;
    z-index: 100;
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    background: linear-gradient(135deg, #1e40af, #1e3a8a);
    color: white;
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 6px 20px rgba(30,64,175,0.3);
    transition: all 0.3s ease;
}

.btn-back:hover {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(59,130,246,0.4);
}

/* Sección principal */
.help-center {
    padding: 140px 0 100px;
    background: linear-gradient(to bottom, #0f172a, #0a0e17);
}

/* Encabezado */
.header-section {
    text-align: center;
    margin-bottom: 5rem;
}

h1 {
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 800;
    background: linear-gradient(90deg, #93c5fd, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.3rem;
    color: #cbd5e1;
    max-width: 680px;
    margin: 0 auto;
}

/* Bloque de contacto + info */
.contact-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

@media (max-width: 850px) {
    .contact-block {
        grid-template-columns: 1fr;
    }
}

/* Tarjetas */
.contact-card,
.info-card {
    background: rgba(30, 41, 59, 0.65);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 10px 35px rgba(0,0,0,0.4);
}

h2 {
    font-size: 2rem;
    color: #93c5fd;
    margin-bottom: 1.8rem;
}

/* Items de contacto */
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
    margin-bottom: 1.8rem;
}

.icon {
    font-size: 2.2rem;
    min-width: 50px;
}

.contact-item strong {
    display: block;
    font-size: 1.15rem;
    color: #e2e8f0;
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: #cbd5e1;
}

/* Categorías */
.categories {
    list-style: none;
    margin-top: 1.5rem;
    color: white;
}

.categories li {
    padding: 1rem 1.2rem;
    background: rgba(59, 130, 246, 0.08);
    border-radius: 10px;
    margin-bottom: 0.9rem;
    font-size: 1.1rem;
    transition: all 0.2s ease;
}

.categories li:hover {
    background: rgba(59, 130, 246, 0.18);
    transform: translateX(6px);
}

/* Nota pie de página */
.footer-note {
    text-align: center;
    margin-top: 6rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(96,165,250,0.1);
    color: #94a3b8;
    font-size: 0.95rem;
}

/* Responsive final */
@media (max-width: 600px) {
    .help-center {
        padding: 100px 0 80px;
    }

    .btn-back {
        top: 20px;
        left: 20px;
        padding: 10px 20px;
        font-size: 1rem;
    }

    h1 {
        font-size: 2.8rem;
    }
}