:root {
    --primary-blue: #3773b4;
    --accent-green: #2e9a31;
    --light-bg: #feffff;
    --dark-bg: #121212;
    --text-light: #f0f0f0;
    --text-dark: #222222;
    --card-light: #f8f9fa;
    --card-dark: #2e2e2e;
    --border-light: #e0e0e0;
    --border-dark: #444;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    transition: var(--transition);
}

body.dark-mode {
    background-color: var(--dark-bg);
    color: var(--text-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Sección About */
.about-section {
    padding: 6rem 1.5rem;
    background-color: var(--light-bg);
    transition: var(--transition);
}

body.dark-mode .about-section {
    background-color: #222;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-green);
    border-radius: 2px;
}

body.dark-mode .section-title {
    color: #6ba3d8;
}

.section-description {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-dark);
}

body.dark-mode .section-description {
    color: #e0e0e0;
}

.section-lead {
    text-align: center;
    font-weight: bold;
    color: var(--accent-green);
    font-size: 1.3rem;
    margin: 2rem auto;
    max-width: 800px;
    padding: 15px;
    position: relative;
    font-style: italic;
}

.section-lead::before, .section-lead::after {
    content: '"';
    font-size: 2rem;
    color: var(--accent-green);
    opacity: 0.7;
}

body.dark-mode .section-lead {
    color: #4caf50;
}

/* Beneficios */
.benefits-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2.5rem;
    margin-top: 3rem;
    list-style: none;
    padding: 0;
}

.benefits-list li {
    background-color: var(--light-bg);
    color: var(--text-dark);
    padding: 2rem;
    border-radius: 12px;
    flex: 1 1 280px;
    max-width: 350px;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    align-items: center;
}

body.dark-mode .benefits-list li {
    background-color: var(--card-dark);
    border-color: var(--border-dark);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.benefits-list li:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

body.dark-mode .benefits-list li:hover {
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
}

.benefits-list .icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(55, 115, 180, 0.1);
    border-radius: 50%;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-blue);
    transition: var(--transition);
}

body.dark-mode .benefits-list .icon {
    background-color: rgba(107, 163, 216, 0.15);
    color: #6ba3d8;
}

.benefits-list li:hover .icon {
    background-color: rgba(55, 115, 180, 0.2);
    transform: scale(1.1);
}

body.dark-mode .benefits-list li:hover .icon {
    background-color: rgba(107, 163, 216, 0.25);
}

.benefits-list h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

body.dark-mode .benefits-list h4 {
    color: #6ba3d8;
}

.benefits-list p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
}

body.dark-mode .benefits-list p {
    color: #d0d0d0;
}

.benefits-list .icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.8rem;
    transition: var(--transition);
}

.benefits-list .icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
    filter: drop-shadow(0 3px 5px rgba(0,0,0,0.2));
}

body.dark-mode .benefits-list .icon img {
    filter: drop-shadow(0 3px 5px rgba(0,0,0,0.4)) 
            brightness(1.1);
}

.benefits-list li:hover .icon img {
    transform: scale(1.1);
    filter: drop-shadow(0 5px 8px rgba(0,0,0,0.3));
}


/* Responsive */
@media (max-width: 768px) {
    .about-section {
        padding: 4rem 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-lead {
        font-size: 1.1rem;
        margin: 1.5rem auto;
    }
    
    .benefits-list {
        flex-direction: column;
        align-items: center;
        gap: 1.8rem;
    }
    
    .benefits-list li {
        width: 100%;
        max-width: 100%;
        padding: 1.8rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .benefits-list li {
        padding: 1.5rem;
    }
    
    .benefits-list .icon {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }
}