/* =========================================================
   Blog LPF Solutions — estilo replicado do site institucional
   (navy / ice, Sora para títulos, Manrope para texto,
   JetBrains Mono para os rótulos "eyebrow")
   ========================================================= */

:root{
    --navy-deep:   oklch(22.9% .0629 267.5);
    --navy-mid:    oklch(35.65% .0625 254.4);
    --navy-accent: oklch(55.39% .0918 249.6);
    --ice:         oklch(94.03% .0087 250.5);

    /* fallback para navegadores sem suporte a oklch */
    --navy-deep-fallback:   #141d33;
    --navy-mid-fallback:    #29406b;
    --navy-accent-fallback: #4d7fc4;
    --ice-fallback:         #eef1f5;

    --background: var(--ice-fallback);
    --background: var(--ice);
    --foreground: var(--navy-deep-fallback);
    --foreground: var(--navy-deep);
    --card: #fff;
    --border: rgba(20,29,51,.12);

    --font-sans: "Manrope", ui-sans-serif, system-ui, sans-serif;
    --font-display: "Sora", ui-sans-serif, system-ui, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    background:var(--background);
    color:var(--foreground);
    font-family:var(--font-sans);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15;margin:0}

.wrap{max-width:80rem;margin:0 auto;padding:0 1.5rem}

.eyebrow{
    font-family:var(--font-mono);
    letter-spacing:.2em;
    text-transform:uppercase;
    font-size:.625rem;
    color:var(--navy-accent-fallback);
    color:var(--navy-accent);
}

/* ---------- Header ---------- */
.site-header{
    position:sticky;top:0;z-index:50;
    width:100%;
    background:rgba(255,255,255,.95);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
}
.site-header .wrap{
    height:5rem;display:flex;align-items:center;justify-content:space-between;
}
.site-header .logo img{height:2.25rem;width:auto}
.site-header nav{display:flex;align-items:center;gap:2rem}
.site-header nav a{
    font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.15em;
    color:var(--navy-deep-fallback);color:var(--navy-deep);
    transition:color .15s;
}
.site-header nav a:hover,.site-header nav a.active{color:var(--navy-accent-fallback);color:var(--navy-accent)}
.header-actions{display:flex;align-items:center;gap:.75rem}
@media (max-width: 860px){
    .site-header nav{display:none}
}

/* ---------- Botões ---------- */
.btn{
    display:inline-block;
    background:var(--navy-deep-fallback);background:var(--navy-deep);
    color:#fff;
    padding:.65rem 1.4rem;
    font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.15em;
    border:0;cursor:pointer;
    transition:background .15s;
}
.btn:hover{background:var(--navy-mid-fallback);background:var(--navy-mid)}
.btn-outline{
    background:transparent;
    border:1px solid var(--navy-deep-fallback);border:1px solid var(--navy-deep);
    color:var(--navy-deep-fallback);color:var(--navy-deep);
}
.btn-outline:hover{background:var(--navy-deep-fallback);background:var(--navy-deep);color:#fff}

/* ---------- Hero ---------- */
.hero{
    padding:4.5rem 0 3.5rem;
    border-bottom:1px solid var(--border);
}
.hero h1{
    font-size:clamp(2rem,4vw,3rem);
    font-weight:800;
    letter-spacing:-.02em;
    margin-top:1rem;
    max-width:22ch;
}
.hero p{max-width:56ch;color:rgba(20,29,51,.65);margin-top:1rem;font-size:1.05rem}

/* ---------- Filtro de categorias ---------- */
.cat-filter{display:flex;flex-wrap:wrap;gap:.6rem;margin:2rem 0}
.cat-filter a{
    font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
    padding:.5rem 1rem;border:1px solid var(--border);
    color:var(--navy-deep-fallback);color:var(--navy-deep);
}
.cat-filter a.active,.cat-filter a:hover{
    background:var(--navy-deep-fallback);background:var(--navy-deep);color:#fff;border-color:transparent;
}

/* ---------- Grid de posts ---------- */
.post-grid{
    display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;
    padding:2rem 0 5rem;
}
@media (max-width: 980px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 640px){.post-grid{grid-template-columns:1fr}}

.post-card{
    background:var(--card);
    border:1px solid var(--border);
    display:flex;flex-direction:column;
    transition:box-shadow .2s, transform .2s;
}
.post-card:hover{box-shadow:0 12px 30px rgba(20,29,51,.1);transform:translateY(-2px)}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#dfe4ea}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .body{padding:1.5rem;display:flex;flex-direction:column;gap:.75rem;flex:1}
.post-card h3{font-size:1.15rem;font-weight:700}
.post-card p{color:rgba(20,29,51,.65);font-size:.92rem;flex:1;margin:0}
.post-meta{display:flex;gap:.75rem;align-items:center;font-size:.75rem;color:rgba(20,29,51,.5)}
.post-card .read-more{
    font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
    color:var(--navy-accent-fallback);color:var(--navy-accent);margin-top:.25rem;
}

.empty-state{padding:5rem 0;text-align:center;color:rgba(20,29,51,.55)}

/* ---------- Paginação ---------- */
.pagination{display:flex;justify-content:center;gap:.5rem;padding-bottom:5rem}
.pagination a,.pagination span{
    min-width:2.5rem;text-align:center;padding:.5rem .75rem;
    border:1px solid var(--border);font-size:.85rem;font-weight:600;
}
.pagination a:hover{background:var(--navy-deep-fallback);background:var(--navy-deep);color:#fff}
.pagination .current{background:var(--navy-deep-fallback);background:var(--navy-deep);color:#fff}

/* ---------- Post único ---------- */
.post-single{padding:3.5rem 0 5rem}
.post-single .cover{aspect-ratio:16/7;overflow:hidden;margin-bottom:2.5rem;background:#dfe4ea}
.post-single .cover img{width:100%;height:100%;object-fit:cover}
.post-single header{max-width:44rem;margin:0 auto 2.5rem}
.post-single h1{font-size:clamp(1.75rem,4vw,2.5rem);margin-top:1rem}
.post-single .post-meta{margin-top:1rem}
.post-content{max-width:44rem;margin:0 auto;font-size:1.05rem}
.post-content p{margin:0 0 1.4rem}
.post-content h2{font-size:1.5rem;margin:2.5rem 0 1rem;font-weight:700}
.post-content h3{font-size:1.2rem;margin:2rem 0 .8rem;font-weight:700}
.post-content img{margin:2rem 0}
.post-content ul,.post-content ol{margin:0 0 1.4rem;padding-left:1.4rem}
.post-content a{color:var(--navy-accent-fallback);color:var(--navy-accent);text-decoration:underline}
.post-content blockquote{
    border-left:3px solid var(--navy-accent-fallback);border-left-color:var(--navy-accent);
    margin:2rem 0;padding:.5rem 0 .5rem 1.5rem;font-style:italic;color:rgba(20,29,51,.75);
}
.back-link{display:inline-block;margin-bottom:2rem;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em}
.back-link:hover{color:var(--navy-accent-fallback);color:var(--navy-accent)}

.related{border-top:1px solid var(--border);margin-top:4rem;padding-top:3rem}
.related h2{font-size:1.1rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:2rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-deep-fallback);background:var(--navy-deep);color:#fff;margin-top:auto}
.site-footer .wrap{padding:4rem 1.5rem}
.footer-grid{display:grid;gap:3rem;grid-template-columns:repeat(3,1fr)}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr}}
.footer-grid img{height:2.5rem;margin-bottom:1.5rem}
.footer-grid p{color:rgba(255,255,255,.6);font-size:.9rem;max-width:34ch}
.footer-grid ul{list-style:none;margin:1.25rem 0 0;padding:0}
.footer-grid li{margin-bottom:.75rem}
.footer-grid a{color:rgba(255,255,255,.75);font-size:.9rem}
.footer-grid a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:4rem;padding-top:2rem}
.footer-bottom p{color:rgba(255,255,255,.4);font-family:var(--font-mono);font-size:.65rem;letter-spacing:.1em;text-transform:uppercase}

body{display:flex;flex-direction:column;min-height:100vh}
main{flex:1}