:root {
    color-scheme: light;
    --color-paper: #f4f0e7;
    --color-surface: #fbf9f4;
    --color-ink: #201e1a;
    --color-muted: #716b61;
    --color-rule: #c9c0b2;
    --color-accent: #8e2d27;
    --color-accent-hover: #70211d;
    --color-input: #fffdf8;
    --color-focus: #b34b3f;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --color-paper: #191917;
    --color-surface: #23221f;
    --color-ink: #eee9df;
    --color-muted: #b6afa3;
    --color-rule: #4c4942;
    --color-accent: #d4786d;
    --color-accent-hover: #e18d82;
    --color-input: #2c2a26;
    --color-focus: #e18d82;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    background: var(--color-paper);
    color: var(--color-ink);
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.6;
}

header {
    padding: 1.5rem max(1.25rem, calc((100% - 1120px) / 2)) 0;
    border-top: 6px solid var(--color-ink);
    background: var(--color-surface);
}

.theme-toggle,
.paginacion button {
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--color-rule);
    border-radius: 0;
    background: var(--color-surface);
    color: var(--color-ink);
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.035em;
    text-transform: uppercase;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.theme-toggle:hover,
.paginacion button:not(:disabled):hover {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: var(--color-surface);
}

.theme-toggle:focus-visible,
.paginacion button:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 3px;
}

.titulo {
    margin: 0;
    padding: 0.4rem 0 1rem;
    border-bottom: 1px solid var(--color-rule);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.065em;
    line-height: 1;
    text-align: center;
}

.nav-header {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: clamp(1rem, 4vw, 2.75rem);
    padding: 0.75rem 0;
    border-bottom: 3px double var(--color-ink);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.nav-dropdown {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.nav-dropdown-toggle {
    appearance: none;
    border: none;
    background: transparent;
    color: var(--color-ink);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0;
    transition: color 160ms ease;
}

.nav-dropdown-toggle:hover,
.nav-dropdown-toggle:focus-visible,
.nav-header a:hover,
.nav-header a:focus-visible {
    color: var(--color-accent);
}

.nav-dropdown-toggle::after {
    content: "▾";
    margin-left: 0.35rem;
    font-size: 0.8rem;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%) translateY(-0.35rem);
    display: flex;
    flex-direction: column;
    min-width: 12rem;
    padding: 0.5rem;
    border: 1px solid var(--color-rule);
    background: var(--color-surface);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.08);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
    z-index: 10;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown-menu:hover {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.6rem 0.75rem;
    color: var(--color-ink);
    text-decoration: none;
    text-transform: none;
    letter-spacing: 0.02em;
    font-size: 0.76rem;
    border-bottom: 1px solid var(--color-rule);
}

.nav-dropdown-menu a:last-child {
    border-bottom: none;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus-visible {
    color: var(--color-accent);
    background: rgba(142, 45, 39, 0.04);
}

.nav-header .theme-toggle {
    display: inline-grid;
    width: 2.25rem;
    height: 2.25rem;
    flex: 0 0 auto;
    place-items: center;
    padding: 0.45rem;
    border-radius: 50%;
}

.theme-toggle svg {
    display: block;
    width: 1.1rem;
    height: 1.1rem;
    fill: currentColor;
}

.nav-header a {
    color: var(--color-ink);
    text-decoration: none;
    transition: color 160ms ease;
}

.nav-header a:hover,
.nav-header a:focus-visible {
    color: var(--color-accent);
}

main {
    width: min(100% - 2.5rem, 1120px);
    flex: 1;
    margin: 2rem auto 3rem;
}

.cont-busqueda {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    max-width: 680px;
    margin: 0 auto 2rem;
    padding: 0.9rem 1rem;
    border-top: 1px solid var(--color-rule);
    border-bottom: 1px solid var(--color-rule);
    font-family: Arial, Helvetica, sans-serif;
}

.cont-busqueda label {
    flex-shrink: 0;
    color: var(--color-muted);
    font-size: 0.85rem;
    font-weight: 700;
}

.cont-busqueda input {
    min-width: 0;
    flex: 1;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--color-rule);
    border-radius: 0;
    background: var(--color-input);
    color: var(--color-ink);
    font: inherit;
}

.cont-busqueda input::placeholder {
    color: var(--color-muted);
    opacity: 0.8;
}

.cont-busqueda input:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

.cont-busqueda button {
    padding: 0.68rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: 0;
    background: var(--color-accent);
    color: var(--color-surface);
    cursor: pointer;
    font: inherit;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: background-color 160ms ease, border-color 160ms ease;
}

.cont-busqueda button:hover {
    border-color: var(--color-accent-hover);
    background: var(--color-accent-hover);
}

.cont-busqueda button:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 3px;
}

.noticias {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: 1.5rem;
    min-height: 12rem;
    padding: 1.5rem 0;
    border-top: 3px double var(--color-ink);
    border-bottom: 1px solid var(--color-rule);
}

.noticia {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--color-rule);
    background: var(--color-surface);
}

.noticia-imagen-container {
    overflow: hidden;
    aspect-ratio: 12 / 7;
    border-bottom: 1px solid var(--color-rule);
    background: var(--color-paper);
}

.noticia-imagen {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 220ms ease;
}

.noticia:hover .noticia-imagen {
    transform: scale(1.025);
}

.noticia-contenido {
    padding: 1.15rem 1.25rem 1.3rem;
}

.noticia-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.35rem 0.75rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--color-rule);
    color: var(--color-muted);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.72rem;
}

.noticia-fuente {
    color: var(--color-accent);
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.noticia-fecha {
    font-style: italic;
}

.noticia-titulo {
    margin: 0.8rem 0 0.55rem;
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    line-height: 1.2;
}

.noticia-descripcion {
    margin: 0 0 1rem;
    color: var(--color-muted);
    font-size: 0.97rem;
}

.noticia-enlace {
    display: inline-block;
    color: var(--color-accent);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.035em;
    text-decoration: none;
    text-transform: uppercase;
}

.noticia-enlace:hover,
.noticia-enlace:focus-visible {
    color: var(--color-accent-hover);
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.noticia-enlace:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 3px;
}

.estado-mensaje {
    grid-column: 1 / -1;
    display: flex;
    min-height: 10rem;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem;
    color: var(--color-muted);
    text-align: center;
}

.estado-mensaje p {
    margin: 0;
}

.paginacion {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 0.5rem 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.8rem;
}

.paginacion button:disabled {
    color: var(--color-muted);
    cursor: not-allowed;
    opacity: 0.55;
}

.cargando {
    font-style: italic;
}

.spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--color-rule);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: girar 750ms linear infinite;
}

@keyframes girar {
    to {
        transform: rotate(360deg);
    }
}

footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem max(1.25rem, calc((100% - 1120px) / 2));
    border-top: 1px solid var(--color-rule);
    background: var(--color-surface);
    color: var(--color-muted);
    font-size: 0.82rem;
}

footer p {
    margin: 0;
}

@media (max-width: 560px) {
    header {
        padding-top: 1rem;
    }

    .nav-header {
        flex-wrap: wrap;
        gap: 0.5rem 1.25rem;
        font-size: 0.7rem;
    }

    main {
        width: min(100% - 1.5rem, 1120px);
        margin-top: 1.5rem;
    }

    .cont-busqueda {
        flex-wrap: wrap;
    }

    .cont-busqueda label {
        width: 100%;
    }

    .cont-busqueda input {
        flex-basis: 60%;
    }

    .noticias {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem 0;
    }

    .noticia-contenido {
        padding: 1rem;
    }

    .paginacion {
        flex-wrap: wrap;
        gap: 0.65rem;
    }

    footer {
        flex-direction: column;
        gap: 0.25rem;
        font-size: 0.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}