/* Layout general y grid system */

/* Container wrapper */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Grid responsive base */
.grid {
    display: grid;
    gap: var(--space-lg);
}

/* Grid de 2 columnas */
.grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

/* Grid de 3 columnas */
.grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

/* Grid de 4 columnas */
.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Secciones */
section {
    padding: var(--space-xxl) 0;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
    background-color: rgba(247, 245, 242, 0.98);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(12px);
}

/* Navegación */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.nav__menu {
    display: flex;
    gap: var(--space-lg);
}

.nav__link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav__link:hover {
    color: var(--color-text-primary);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav__toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* Hero */
.hero {
    padding-top: 140px;
    padding-bottom: var(--space-xxl);
}

.hero__container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-xl);
    align-items: start;;
}

.hero__title {
    margin-bottom: var(--space-md);
}

.hero__subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
    max-width: 540px;
}

.hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.hero__stats {
    display: flex;
    gap: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat__number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.stat__label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.hero__image-wrapper {
    position: relative;
    aspect-ratio: 4 / 5;
    max-width: 470px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background-color: var(--color-bg-primary);
}

/* Cards de categorías */
.categories__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.category-card {
    background-color: var(--color-bg-secondary);
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.category-card__icon {
    width: 48px;
    height: 48px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.category-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.category-card__desc {
    font-size: 0.9375rem;
    margin-bottom: var(--space-md);
}

.category-card__link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.02em;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.category-card__link::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.category-card:hover .category-card__link::after {
    transform: translateX(4px);
}

/* Comparativas */
.comparatives__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.comparative-card {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.comparative-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.comparative-card__image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.comparative-card__image .placeholder-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comparative-card__content {
    padding: var(--space-lg);
}

.comparative-card__tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.comparative-card__badge {
    display: inline-block;
    padding: 4px 12px;
    background-color: #e8f4e8;
    color: #2d6a2d;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 100px;
    margin-bottom: var(--space-sm);
    margin-left: var(--space-xs);
}

.comparative-card__title {
    font-size: 1.375rem;
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.comparative-card__desc {
    font-size: 0.9375rem;
    margin-bottom: var(--space-md);
}

.comparative-card__meta {
    display: flex;
    gap: var(--space-md);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

/* Sección trust */
.trust__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-xl);
    align-items: center;
}

.trust__intro {
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

.trust__items {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.trust__item {
    display: flex;
    gap: var(--space-md);
}

.trust__icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    color: var(--color-accent);
}

.trust__item h4 {
    font-size: 1.0625rem;
    margin-bottom: 4px;
    font-family: var(--font-body);
    font-weight: 600;
}

.trust__item p {
    font-size: 0.9375rem;
}

.trust__visual-card {
    background-color: var(--color-bg-secondary);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.trust__visual-card img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    background-color: var(--color-bg-primary);
}

.trust__visual-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Artículos */
.articles__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.article-card {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.article-card__image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.article-card__image .placeholder-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-card__content {
    padding: var(--space-md);
}

.article-card__category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.article-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.article-card__excerpt {
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card__meta {
    display: flex;
    gap: var(--space-md);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

/* Newsletter */
.newsletter {
    background-color: var(--color-bg-secondary);
}

.newsletter__card {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-xxl);
    align-items: center;
    padding: var(--space-xxl);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.newsletter__title {
    margin-bottom: var(--space-sm);
}

.newsletter__desc {
    font-size: 1.0625rem;
    margin-bottom: var(--space-lg);
}

.newsletter__form {
    max-width: 500px;
}

.form-group {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.form-input {
    flex: 1;
    padding: 12px 16px;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(17, 17, 17, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.6;
}

.newsletter__note {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.newsletter__visual {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 300px;
    margin: 0 auto;
}

.newsletter__visual img {
    max-width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    background-color: var(--color-bg-primary);
}

.newsletter__svg {
    width: 200px;
    height: 200px;
    opacity: 0.8;
}

/* Testimonios */
.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.testimonial {
    background-color: var(--color-bg-secondary);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.testimonial__text {
    font-size: 1rem;
    font-style: italic;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.testimonial__author {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.testimonial__name {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-text-primary);
}

.testimonial__location {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

/* Final CTA */
.final-cta {
    background-color: var(--color-accent);
    color: var(--color-bg-secondary);
    text-align: center;
}

.final-cta__title {
    color: var(--color-bg-secondary);
    margin-bottom: var(--space-sm);
}

.final-cta__desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.0625rem;
    margin-bottom: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.final-cta__buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.final-cta .btn--primary {
    background-color: var(--color-bg-secondary);
    color: var(--color-accent);
}

.final-cta .btn--primary:hover {
    background-color: #f0ebe6;
}

.final-cta .btn--secondary {
    border-color: var(--color-bg-secondary);
    color: var(--color-bg-secondary);
}

.final-cta .btn--secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Footer */
.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xxl) 0 var(--space-lg);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xxl);
    margin-bottom: var(--space-xl);
}

.footer__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: block;
    margin-bottom: var(--space-sm);
}

.footer__tagline {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-secondary);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.footer__title {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.footer__column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__column a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer__column a:hover {
    color: var(--color-accent);
}

.footer__bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer__bottom p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.footer__disclaimer {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Responsive: 1200px */
@media (max-width: 1200px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero__ctas {
        justify-content: center;
    }

    .hero__stats {
        margin-top: 40px;;
    }

    .hero__image {
        max-width: 500px;
        margin: 0 auto;
    }

    .trust__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .trust__items {
        max-width: 500px;
        margin: 0 auto;
    }

    .trust__visual {
        order: -1;
        max-width: 300px;
        margin: 0 auto;
    }
}

/* Responsive: 900px */
@media (max-width: 900px) {
    .categories__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .comparatives__grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .articles__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials__grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .newsletter__card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .newsletter__form {
        max-width: 100%;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .footer__links {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Responsive: 600px */
@media (max-width: 600px) {
    :root {
        --container-padding: 1rem;
    }

    section {
        padding: var(--space-xl) 0;
    }

    .hero {
        padding-top: 100px;
    }

    .nav__menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__cta {
        display: none;
    }

    .categories__grid {
        grid-template-columns: 1fr;
    }

    .articles__grid {
        grid-template-columns: 1fr;
    }

    .footer__links {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero__stats {
        flex-direction: column;
        gap: var(--space-md);
        align-items: center;
    }

    .form-group {
        flex-direction: column;
    }

    .final-cta__buttons {
        flex-direction: column;
        align-items: center;
    }
}