:root {
    --azul: #082f5e;
    --azul_claro: #0f4f94;
    --dorado: #d9a441;
    --fondo: #f5f7fb;
    --blanco: #ffffff;
    --texto: #1f2937;
    --texto_suave: #6b7280;
    --borde: #dce3ec;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    color: var(--texto);
    background: var(--fondo);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.65;
}

main {
    flex: 1;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    background: var(--blanco);
    border-bottom: 1px solid var(--borde);
}

.nav {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--azul);
    font-size: 1.1rem;
    font-weight: 800;
}

.brand span {
    display: inline-grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: var(--azul);
    background: var(--dorado);
    border-radius: 50%;
    font-size: 0.78rem;
}

.site-header nav {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.site-header nav a {
    position: relative;
    color: #374151;
    font-size: 0.92rem;
    font-weight: 700;
}

.site-header nav a:hover,
.site-header nav a.is-active {
    color: var(--azul_claro);
}

.site-header nav a.is-active::after {
    position: absolute;
    right: 0;
    bottom: -10px;
    left: 0;
    height: 2px;
    content: "";
    background: var(--dorado);
    border-radius: 20px;
}

.hero {
    padding: 78px 0;
    color: var(--blanco);
    background: linear-gradient(120deg, var(--azul), var(--azul_claro));
}

.eyebrow,
.author-label {
    display: block;
    margin: 0;
    color: var(--dorado);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 800px;
    margin: 10px 0 16px;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    line-height: 1.14;
}

.hero p:not(.eyebrow) {
    max-width: 720px;
    margin: 0;
    color: rgba(255, 255, 255, 0.86);
    font-size: 1.08rem;
}

.section {
    padding: 58px 0;
}

.section-heading {
    margin-bottom: 26px;
}

.section-heading .eyebrow {
    color: var(--dorado);
}

.section-heading h2 {
    margin: 6px 0 0;
    color: var(--azul);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    line-height: 1.2;
}

.category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 0 28px;
}

.category-nav a {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    padding: 8px 14px;
    color: var(--azul);
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 700;
}

.category-nav a:hover,
.category-nav a.is-active {
    color: var(--blanco);
    background: var(--azul);
    border-color: var(--azul);
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(285px, 1fr));
    gap: 24px;
}

.post-card {
    display: flex;
    overflow: hidden;
    min-height: 100%;
    flex-direction: column;
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-radius: 14px;
    box-shadow: 0 8px 24px rgba(8, 47, 94, 0.07);
}

.post-card > a:first-child {
    display: block;
    background: #eaf0f8;
}

.post-card img,
.post-image-placeholder {
    width: 100%;
    height: 210px;
}

.post-card img {
    object-fit: cover;
}

.post-image-placeholder {
    display: grid;
    place-items: center;
    padding: 20px;
    color: var(--azul);
    background: #eaf0f8;
    font-weight: 800;
    text-align: center;
}

.post-content {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 24px;
}

.category {
    display: inline-block;
    margin-bottom: 8px;
    color: var(--azul_claro);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.post-card h3 {
    margin: 0 0 10px;
    color: var(--azul);
    font-size: 1.35rem;
    line-height: 1.25;
}

.post-card h3 a:hover {
    color: var(--azul_claro);
}

.post-card p {
    margin: 0;
    color: var(--texto_suave);
}

.post-card small,
.article-date {
    display: block;
    margin-top: 16px;
    color: var(--texto_suave);
}

.read-more {
    display: inline-block;
    margin-top: auto;
    padding-top: 18px;
    color: var(--azul_claro);
    font-weight: 800;
}

.read-more:hover {
    color: var(--dorado);
}

.blog-message {
    margin: 24px 0;
    padding: 24px;
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-radius: 14px;
}

.blog-message h3,
.blog-message p {
    margin: 0;
}

.blog-message p + p {
    margin-top: 8px;
}

.blog-message-error {
    color: #8b1e3f;
    background: #fff1f4;
    border-color: #f2c8d4;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 36px;
    color: var(--texto_suave);
    font-weight: 700;
}

.pagination a {
    display: inline-block;
    padding: 9px 14px;
    color: var(--azul);
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-radius: 8px;
    font-weight: 800;
}

.pagination a:hover {
    color: var(--blanco);
    background: var(--azul);
}

.article {
    max-width: 850px;
}

.article h1 {
    margin: 10px 0;
    color: var(--azul);
    font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 1.16;
}

.featured-image {
    width: 100%;
    max-height: 450px;
    margin: 26px 0;
    border-radius: 14px;
    object-fit: cover;
}

.article-body {
    font-size: 1.08rem;
}

.article-body p {
    margin: 0 0 1.25em;
}

.article-body h2,
.article-body h3 {
    margin-top: 1.6em;
    color: var(--azul);
}

.article-body a {
    color: var(--azul_claro);
    font-weight: 700;
    text-decoration: underline;
}

.author-box {
    display: flex;
    align-items: center;
    gap: 22px;
    margin: 42px 0 28px;
    padding: 24px;
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-radius: 14px;
}

.author-box img {
    width: 100px;
    height: 100px;
    flex: 0 0 auto;
    border: 3px solid var(--dorado);
    border-radius: 50%;
    object-fit: cover;
}

.author-box h2 {
    margin: 4px 0;
    color: var(--azul);
    font-size: 1.35rem;
}

.author-role {
    margin-top: 0;
    color: var(--azul_claro);
    font-weight: 800;
}

.button {
    display: inline-block;
    padding: 12px 18px;
    color: var(--blanco);
    background: var(--azul);
    border-radius: 8px;
    font-weight: 800;
}

.button:hover {
    color: var(--azul);
    background: var(--dorado);
}

.site-footer {
    margin-top: 50px;
    padding-top: 46px;
    color: rgba(255, 255, 255, 0.75);
    background: #061f3f;
}

.footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(180px, 1fr));
    gap: 36px;
    padding-bottom: 38px;
}

.footer-brand {
    color: var(--blanco);
}

.footer-brand span {
    color: var(--azul);
    background: var(--dorado);
}

.footer-intro p {
    max-width: 42ch;
    margin: 15px 0 0;
}

.footer-location {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
}

.footer-links {
    display: grid;
    align-content: start;
    gap: 10px;
}

.footer-links h2 {
    margin: 0 0 4px;
    color: var(--blanco);
    font-size: 1rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.92rem;
}

.footer-links a:hover {
    color: var(--dorado);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.85rem;
}

.footer-bottom p {
    margin: 0;
}

@media (max-width: 760px) {
    .nav {
        min-height: auto;
        padding: 16px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .site-header nav {
        gap: 12px 16px;
    }

    .site-header nav a.is-active::after {
        bottom: -5px;
    }

    .hero {
        padding: 58px 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 640px) {
    .author-box {
        align-items: flex-start;
        flex-direction: column;
    }
}