/* Variables globales */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --background-color: #f8f9fa;
    --text-color: #2c3e50;
    --border-color: #e0e0e0;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

/* Estilos base */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background-color);
    margin: 0;
    padding: 0;
}

/* Header y navegación */
header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo a {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

/* Estilos base del menú */
.menu {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Botón menú móvil */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--primary-color);
    padding: 0.5rem;
}

.menu a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

/* Versión móvil */
@media (max-width: 1024px) {
    .menu {
        display: none !important; /* Forzar ocultar en móvil */
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        z-index: 1000;
    }

    .menu.active {
        display: flex !important; /* Forzar mostrar cuando está activo */
    }

    .menu-toggle {
        display: block;
    }

    .menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }

    .menu li:last-child {
        border-bottom: none;
    }

    .menu a {
        display: block;
        padding: 1rem;
        color: var(--primary-color);
        text-decoration: none;
    }

    /* Dropdown móvil */
    .dropdown-menu {
        display: none;
        background: var(--background-color);
        padding: 0;
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .dropdown-menu a {
        padding-left: 2rem;
    }
}

/* Versión escritorio */
@media (min-width: 1025px) {
    .menu {
        display: flex;
    }

    .menu-toggle {
        display: none;
    }

    .dropdown {
        position: relative;
    }

    .dropdown-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 200px;
        background: white;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        border-radius: 8px;
        padding: 0.5rem 0;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }

    .dropdown-menu a {
        padding: 0.8rem 1rem;
        display: block;
    }
}

/* Contenido principal */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

h1 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 2rem 0 1rem;
}

/* Secciones de contenido */
.content-section {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

/* Grid de beneficios */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.benefit-item {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

/* Tips */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tip-box {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: var(--radius);
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition);
}

.tip-box:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

/* FAQ */
.faq-item {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.faq-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

/* Footer */
footer {
    background: white;
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

.footer-links {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #3498db;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .content-section {
        padding: 1.5rem;
    }

    .benefits-grid,
    .tips-grid {
        grid-template-columns: 1fr;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section {
    animation: fadeIn 0.5s ease-out;
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

@media screen and (min-width: 769px) {
    .menu {
        display: flex;
    }
}

@media screen and (max-width: 480px) {
    .logo a {
        font-size: 1rem;
    }

    main {
        margin-top: 0.5rem;
    }
}

/* Calculadoras relacionadas */
.related-calculators {
    margin-top: 4rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.calculator-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s, box-shadow 0.3s;
}

.calculator-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.calculator-card h3 {
    color: var(--primary-color);
    margin: 0 0 0.5rem 0;
    font-size: 1.2rem;
}

.calculator-card p {
    color: #666;
    margin: 0;
    font-size: 0.9rem;
}