@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Serif:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

/* -----------------------------------------------------------------------------
   Stylesheet do blog. Aesthetic: paper formal navy.
   Paleta dominante: paper #f7f5ef + navy 900 #1e3a8a + slate dark #0f172a.
   Tipografia: IBM Plex Serif (display) + IBM Plex Sans (corpo).
   ----------------------------------------------------------------------------- */

:root {
    --paper: #f7f5ef;
    --paper-edge: #efece2;
    --paper-rule: #d6d1bf;
    --ink: #0f172a;
    --ink-soft: #1f2937;
    --ink-mute: #54607a;
    --navy: #1e3a8a;
    --navy-deep: #172554;
    --navy-tint: #e4e8f5;
    --navy-faint: #f0f2fa;
    --accent: var(--navy);
    --border: #c9c2ad;
    --border-soft: #e0dbcb;
    --warn: #92400e;
    --warn-bg: #fdf2cf;

    --font-display: 'IBM Plex Serif', Georgia, 'Times New Roman', serif;
    --font-body: 'IBM Plex Sans', -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;

    --measure: 64ch;
    --rhythm: 1.65rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--navy);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: color .12s ease;
}
a:hover { color: var(--navy-deep); }
a:focus-visible {
    outline: 2px solid var(--navy);
    outline-offset: 2px;
}

::selection { background: var(--navy); color: var(--paper); }

/* ----- layout ----- */

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.75rem;
}

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap; border: 0;
}

.muted { color: var(--ink-mute); }

/* ----- dateline (top thin strip) ----- */

.dateline {
    background: var(--ink);
    color: var(--paper);
    font-family: var(--font-body);
    font-size: .72rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    padding: .55rem 0;
}

.dateline .container {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
}

.dateline span + span { opacity: .72; }

/* ----- masthead ----- */

.masthead {
    border-bottom: 1px solid var(--navy);
    padding: 2.6rem 0 1.6rem;
    text-align: center;
    background:
        linear-gradient(to bottom, var(--paper) 0%, var(--paper) 80%, var(--paper-edge) 100%);
}

.masthead::after {
    content: '';
    display: block;
    width: 70px;
    height: 2px;
    background: var(--navy);
    margin: 1.2rem auto -1.6rem;
}

.masthead-brand {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--navy);
    font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 1.05;
    letter-spacing: -.01em;
    margin: 0;
    text-transform: none;
}

.masthead-brand a {
    color: inherit;
    text-decoration: none;
}

.masthead-tag {
    margin-top: .4rem;
    font-size: .82rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 500;
}

/* ----- nav ----- */

.site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--paper);
    border-bottom: 1px solid var(--border-soft);
    padding: .55rem 0;
}

.site-nav .container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.4rem;
    justify-content: center;
    align-items: center;
}

.site-nav a {
    color: var(--ink);
    text-decoration: none;
    font-size: .8rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    font-weight: 500;
    padding: .35rem 0;
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: -.05rem;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--navy);
    transition: width .2s ease, left .2s ease;
}

.site-nav a:hover { color: var(--navy); }
.site-nav a:hover::after { width: 100%; left: 0; }

/* ----- main ----- */

main {
    padding: 3rem 0 4rem;
    min-height: 60vh;
}

.prose {
    max-width: var(--measure);
}

/* ----- eyebrow & ornaments ----- */

.eyebrow {
    font-family: var(--font-body);
    font-size: .72rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--navy);
    font-weight: 600;
    margin: 0 0 .6rem;
    display: inline-block;
}

.eyebrow.muted { color: var(--ink-mute); }

.ornament {
    text-align: center;
    margin: 2.4rem 0;
    color: var(--navy);
    font-size: 1rem;
    letter-spacing: .6em;
}

.ornament-mark {
    display: inline-block;
    width: 6px; height: 6px;
    background: var(--navy);
    transform: rotate(45deg);
    margin: 0 .35rem;
}

/* ----- section title ----- */

.section-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: var(--navy);
    font-weight: 600;
    margin: 0 0 1.6rem;
    padding-bottom: .55rem;
    border-bottom: 1px solid var(--navy);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--navy);
}

/* ----- featured (home) ----- */

.featured {
    max-width: 1080px;
    margin: 0 auto 3.2rem;
    padding: 2.5rem 1.75rem 0;
}

.featured-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
}

.featured-main, .featured-side article {
    border: 1px solid var(--border);
    background: #fbfaf3;
    padding: 1.7rem 1.6rem;
    border-radius: 2px;
    transition: border-color .15s ease, transform .15s ease;
}

.featured-main:hover, .featured-side article:hover {
    border-color: var(--navy);
}

.featured-main h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    color: var(--navy);
    margin: .4rem 0 .8rem;
    line-height: 1.15;
    font-weight: 600;
}

.featured-main h2 a, .featured-side h3 a {
    color: inherit;
    text-decoration: none;
}

.featured-main h2 a:hover, .featured-side h3 a:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
}

.featured-side {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.featured-side h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--navy);
    margin: .25rem 0 .55rem;
    line-height: 1.25;
    font-weight: 600;
}

.featured-eyebrow {
    font-size: .7rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--navy);
    font-weight: 600;
}

.featured-byline {
    font-size: .76rem;
    color: var(--ink-mute);
    letter-spacing: .04em;
    margin-top: .55rem;
}

.excerpt {
    color: var(--ink-soft);
    font-size: .96rem;
    line-height: 1.55;
    margin: .5rem 0 0;
}

/* ----- articles grid (home secondary) ----- */

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2.5rem;
    max-width: 1080px;
    margin: 0 auto;
    padding: 2.5rem 1.75rem 4rem;
}

@media (min-width: 1200px) {
    .articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.articles-grid article {
    border: 1px solid var(--border-soft);
    border-top: 2px solid var(--navy);
    background: var(--paper);
    padding: 1.3rem 1.25rem;
    transition: border-color .15s ease, background .15s ease;
}

.articles-grid article:hover {
    border-color: var(--navy);
    background: #fbfaf3;
}

.articles-grid h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--ink);
    margin: .3rem 0 .5rem;
    line-height: 1.3;
    font-weight: 600;
}

.articles-grid h3 a {
    color: inherit;
    text-decoration: none;
}

.articles-grid h3 a:hover { color: var(--navy); }

/* ----- listing editorial ----- */

.articles-list-editorial {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
    border-top: 1px solid var(--border);
}

.articles-list-editorial > article {
    display: grid;
    grid-template-columns: 1fr 180px;
    gap: 1.8rem;
    align-items: start;
    padding: 1.4rem 0;
    border-bottom: 1px solid var(--border-soft);
}

.articles-list-editorial h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--navy);
    margin: .2rem 0 .55rem;
    line-height: 1.25;
    font-weight: 600;
}

.articles-list-editorial h2 a {
    color: inherit;
    text-decoration: none;
}

.articles-list-editorial h2 a:hover { text-decoration: underline; }

.articles-list-editorial .excerpt {
    margin-top: 0;
    font-size: .94rem;
    color: var(--ink-soft);
}

.meta-side {
    text-align: right;
    font-size: .76rem;
    color: var(--ink-mute);
    letter-spacing: .04em;
    border-left: 1px solid var(--border-soft);
    padding-left: 1.4rem;
    min-height: 3rem;
}

.meta-cat {
    display: inline-block;
    margin-top: .35rem;
    padding: .15rem .55rem;
    background: var(--navy-tint);
    color: var(--navy-deep);
    font-size: .68rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    border: 1px solid var(--navy);
    border-radius: 1px;
    font-weight: 500;
}

/* ----- post hero ----- */

.post-hero {
    text-align: left;
    padding: 0 0 1.6rem;
    margin-bottom: 1.4rem;
    border-bottom: 1px solid var(--navy);
    position: relative;
}

.post-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    color: var(--navy);
    line-height: 1.1;
    margin: .6rem 0 1rem;
    letter-spacing: -.01em;
    font-weight: 700;
}

.post-hero .lede {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--ink-soft);
    line-height: 1.5;
    font-style: italic;
    margin: .4rem 0 1rem;
    max-width: 60ch;
}

.byline {
    font-size: .78rem;
    color: var(--ink-mute);
    letter-spacing: .1em;
    text-transform: uppercase;
}

.byline strong { color: var(--ink); font-weight: 600; }

.post-meta-rule {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 1.3rem 0;
}

.editorial-note {
    background: var(--navy-faint);
    border-left: 3px solid var(--navy);
    padding: .9rem 1.1rem;
    font-size: .88rem;
    color: var(--ink-soft);
    margin: 1.5rem 0;
    border-radius: 1px;
}

.editorial-note strong { color: var(--navy); }

/* ----- post body ----- */

.post-body {
    max-width: 64ch;
    margin: 0 auto;
    padding: 2.5rem 0;
    font-size: 1.04rem;
    line-height: 1.78;
    color: var(--ink-soft);
}

.post-body p { margin: 0 0 1.15rem; }

.post-body p:first-of-type::first-letter {
    font-family: var(--font-display);
    font-size: 4.4rem;
    color: var(--navy);
    float: left;
    line-height: .85;
    margin: .35rem .55rem -.3rem 0;
    padding: 0;
    font-weight: 700;
}

.post-body h2 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    color: var(--navy);
    margin: 2.4rem 0 1rem;
    padding-bottom: .35rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    line-height: 1.25;
    position: relative;
    padding-left: 1.1rem;
}

.post-body h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: .55rem;
    width: 8px;
    height: 8px;
    background: var(--navy);
}

.post-body h3 {
    font-family: var(--font-display);
    font-size: 1.18rem;
    color: var(--ink);
    margin: 1.7rem 0 .7rem;
    font-weight: 600;
}

.post-body ul, .post-body ol {
    margin: .8rem 0 1.3rem;
    padding-left: 1.6rem;
}

.post-body li {
    margin: .35rem 0;
    padding-left: .25rem;
}

.post-body ul li::marker {
    color: var(--navy);
    content: '\25A0  ';
}

.post-body ol li::marker {
    color: var(--navy);
    font-weight: 600;
    font-family: var(--font-display);
}

.post-body blockquote {
    margin: 1.6rem 0;
    padding: 1rem 1.2rem;
    border-left: 3px solid var(--warn);
    background: var(--warn-bg);
    color: #5b2c0a;
    font-size: .98rem;
    font-style: normal;
    border-radius: 1px;
}

.post-body blockquote strong { color: var(--warn); }

.post-body code {
    background: var(--navy-faint);
    border: 1px solid var(--border-soft);
    padding: .1rem .4rem;
    font-size: .88em;
    border-radius: 2px;
    font-family: ui-monospace, 'SF Mono', Consolas, monospace;
}

.post-body pre {
    background: var(--ink);
    color: var(--paper);
    padding: 1rem 1.2rem;
    overflow-x: auto;
    border-radius: 2px;
    font-size: .9rem;
    line-height: 1.55;
}

.post-body pre code {
    background: transparent;
    border: 0;
    color: inherit;
    padding: 0;
}

.post-body hr {
    border: 0;
    text-align: center;
    margin: 2.4rem 0;
    height: 1px;
    background: var(--border);
    position: relative;
}

.post-body hr::after {
    content: '\25A0';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--paper);
    color: var(--navy);
    padding: 0 .8rem;
    font-size: .7rem;
}

/* ----- ad slot ----- */

.ad-slot {
    margin: 2rem 0;
    padding: 1rem;
    border: 1px dashed var(--border);
    text-align: center;
    color: var(--ink-mute);
    font-size: .78rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    background: var(--paper-edge);
}

/* ----- pagination ----- */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 3rem 0 1.5rem;
    font-family: var(--font-body);
}

.pagination a, .pagination span {
    padding: .55rem 1.1rem;
    border: 1px solid var(--border);
    text-decoration: none;
    color: var(--ink);
    font-size: .85rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    background: var(--paper);
    transition: background .12s ease, color .12s ease, border-color .12s ease;
}

.pagination a:hover {
    background: var(--navy);
    color: var(--paper);
    border-color: var(--navy);
}

.pagination .current,
.pagination span[aria-current] {
    background: var(--navy);
    color: var(--paper);
    border-color: var(--navy);
}

.page-counter {
    text-align: center;
    color: var(--ink-mute);
    font-size: .78rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

/* ----- post nav ----- */

.post-nav {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin: 3rem 0 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.post-nav a {
    flex: 1 1 280px;
    padding: 1rem 1.2rem;
    border: 1px solid var(--border);
    text-decoration: none;
    color: var(--ink);
    font-size: .9rem;
    line-height: 1.4;
    background: var(--paper);
    transition: border-color .15s ease, background .15s ease;
}

.post-nav a:hover {
    border-color: var(--navy);
    background: #fbfaf3;
}

.post-nav a small {
    display: block;
    font-size: .68rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--navy);
    margin-bottom: .3rem;
    font-weight: 600;
}

/* ----- search ----- */

.search-form {
    display: flex;
    gap: .5rem;
    margin: 1.5rem 0 2rem;
    max-width: 480px;
}

.search-form input[type="search"] {
    flex: 1;
    padding: .65rem .9rem;
    border: 1px solid var(--border);
    background: var(--paper);
    font-family: inherit;
    font-size: 1rem;
    color: var(--ink);
    border-radius: 1px;
}

.search-form input[type="search"]:focus {
    outline: none;
    border-color: var(--navy);
    box-shadow: 0 0 0 2px var(--navy-tint);
}

.search-form button {
    padding: .65rem 1.3rem;
    background: var(--navy);
    color: var(--paper);
    border: 1px solid var(--navy);
    cursor: pointer;
    font-family: inherit;
    font-size: .85rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    border-radius: 1px;
    transition: background .12s ease;
}

.search-form button:hover { background: var(--navy-deep); }

/* ----- footer ----- */

.site-footer {
    background: var(--ink);
    color: var(--paper);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
    border-top: 4px solid var(--navy);
}

.colophon {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.6rem;
    border-bottom: 1px solid #2a3650;
}

.colophon-brand {
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: var(--paper);
    font-weight: 600;
    margin: 0;
}

.colophon-tag {
    font-size: .74rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: #94a3b8;
    margin-top: .3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 1.6rem;
    font-size: .88rem;
}

.footer-grid h4 {
    font-family: var(--font-display);
    font-size: .82rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: #94a3b8;
    margin: 0 0 .65rem;
    font-weight: 500;
}

.footer-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-grid li { margin: .3rem 0; }

.footer-grid a {
    color: var(--paper);
    text-decoration: none;
    font-size: .9rem;
}

.footer-grid a:hover {
    color: #cbd5e1;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-legal {
    text-align: center;
    font-size: .76rem;
    color: #94a3b8;
    line-height: 1.6;
    padding-top: 1rem;
    border-top: 1px solid #2a3650;
}

.footer-legal p { margin: .35rem 0; }

/* ----- cookie banner ----- */

#cookie-banner {
    position: fixed;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    max-width: 580px;
    margin: 0 auto;
    background: var(--paper);
    border: 1px solid var(--navy);
    border-left: 4px solid var(--navy);
    padding: 1rem 1.2rem;
    font-size: .88rem;
    line-height: 1.5;
    color: var(--ink);
    box-shadow: 0 6px 22px rgba(15, 23, 42, .25);
    z-index: 1000;
    border-radius: 1px;
}

#cookie-banner button {
    margin-top: .6rem;
    padding: .5rem 1rem;
    background: var(--navy);
    color: var(--paper);
    border: 1px solid var(--navy);
    cursor: pointer;
    font-family: inherit;
    font-size: .8rem;
    letter-spacing: .12em;
    text-transform: uppercase;
}

#cookie-banner button:hover { background: var(--navy-deep); }

#cookie-banner[hidden] { display: none !important; }

/* ----- 404 ----- */

.error-404 {
    text-align: center;
    padding: 4rem 1rem;
}

.error-404 h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--navy);
    margin: 0 0 1rem;
    line-height: 1;
    font-weight: 700;
}

.error-404 p {
    color: var(--ink-mute);
    max-width: 48ch;
    margin: 0 auto 1.5rem;
}

/* ----- responsive ----- */

@media (max-width: 900px) {
    .featured-grid {
        grid-template-columns: 1fr;
        gap: 1.6rem;
    }
    .articles-list-editorial > article {
        grid-template-columns: 1fr;
        gap: .6rem;
    }
    .meta-side {
        border-left: 0;
        border-top: 1px solid var(--border-soft);
        padding-left: 0;
        padding-top: .55rem;
        text-align: left;
    }
}

@media (max-width: 720px) {
    body { font-size: 16px; }
    .container { padding: 0 1.1rem; }
    main { padding: 2rem 0 3rem; }
    .masthead { padding: 1.8rem 0 1.1rem; }
    .masthead-brand { font-size: 2rem; }
    .featured { padding: 1.5rem 1.1rem 0; }
    .featured-main h2 { font-size: clamp(1.4rem, 7vw, 1.85rem); }
    .post-hero h1 { font-size: clamp(1.4rem, 7vw, 1.85rem); }
    .post-body {
        font-size: 1rem;
        line-height: 1.75;
        padding: 1.5rem 0 3rem;
    }
    .post-body p:first-of-type::first-letter {
        font-size: 3.2rem;
        margin: .25rem .45rem -.2rem 0;
    }
    .post-body h2 {
        font-size: 1.3rem;
        padding-left: .85rem;
    }
    .post-body h2::before {
        width: 6px;
        height: 6px;
        top: .5rem;
    }
    .site-nav .container {
        flex-wrap: wrap;
        gap: .85rem;
        justify-content: center;
        overflow-x: visible;
    }
    .site-nav a {
        white-space: nowrap;
        font-size: .72rem;
        letter-spacing: .1em;
    }
    .dateline .container { font-size: .65rem; }
    .eyebrow { font-size: .7rem; letter-spacing: .18em; }
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem 1.1rem 2rem;
    }
    .articles-list-editorial > article {
        gap: .75rem;
        padding: 1.25rem 0;
    }
    .post-nav { flex-direction: column; }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

/* ----- print ----- */

@media print {
    .dateline, .site-nav, .site-footer, .pagination,
    .post-nav, .ad-slot, .search-form, #cookie-banner {
        display: none !important;
    }
    body { background: #fff; color: #000; font-size: 12pt; }
    a { color: #000; text-decoration: underline; }
    .post-body p:first-of-type::first-letter {
        color: #000;
        font-size: 3rem;
    }
    .post-body h2, .post-hero h1, .section-title, .masthead-brand {
        color: #000;
    }
    .post-body h2::before { background: #000; }
}

/* ----- motion reduce ----- */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0s !important;
        scroll-behavior: auto !important;
    }
}