/* ===== BPack Blog — editorial premium ===== */
:root{--navy:#071B3A;--blue:#0057B8;--blue2:#1E7BE0;--green:#78BE20;--ink:#20344f;--muted:#5b6b80;--line:#e2e9f2;--bg:#f7f9fc;--fdisp:'Archivo',system-ui,sans-serif;--fbody:'IBM Plex Sans',system-ui,sans-serif;--fmono:'IBM Plex Mono',ui-monospace,monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--fbody);color:var(--ink);background:#fff;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(1120px,92vw);margin:0 auto}
.reading-bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--blue),var(--green));z-index:60;transition:width .1s linear}

/* header */
.bnav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bnav .wrap{display:flex;align-items:center;gap:16px;height:64px}
.bnav .logo{height:26px}
.bnav .sp{flex:1}
.bnav a.nl{color:var(--ink);font-weight:600;font-size:14px}
.bnav .wa{display:inline-flex;align-items:center;gap:7px;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;padding:9px 16px;border-radius:999px;font-weight:600;font-size:13.5px}
.bnav .wa:hover{text-decoration:none;filter:brightness(1.06)}
.bnav .wa svg{width:15px;height:15px;fill:currentColor}
@media(max-width:640px){.bnav a.nl.hide-sm{display:none}}

/* article */
.art{padding:34px 0 10px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:16px}
.crumb a{color:var(--muted)}
.eyebrow{display:inline-block;font-family:var(--fmono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);background:#eaf2ff;border:1px solid #cfe0ff;padding:6px 12px;border-radius:999px;margin-bottom:14px}
.art h1{font-family:var(--fdisp);font-weight:800;font-size:clamp(30px,5vw,50px);line-height:1.05;color:var(--navy);margin:0 0 14px;letter-spacing:-.01em}
.art .lede{font-size:19px;color:var(--muted);max-width:70ch;margin:0 0 18px}
.meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;margin-bottom:24px}
.meta b{color:var(--ink)}
.hero{border-radius:18px;overflow:hidden;margin:0 0 28px;border:1px solid var(--line)}
.hero img{width:100%;aspect-ratio:16/9;object-fit:cover}

.art-body{display:grid;grid-template-columns:1fr;gap:0;max-width:760px;margin:0 auto}
.tldr{background:linear-gradient(135deg,#f2f8ff,#eefaf0);border:1px solid #d5e6f7;border-left:4px solid var(--green);border-radius:14px;padding:18px 20px;margin:0 0 30px}
.tldr h2{font-family:var(--fdisp);font-size:15px;text-transform:uppercase;letter-spacing:.06em;color:var(--navy);margin:0 0 10px}
.tldr ul{margin:0;padding-left:20px}.tldr li{margin-bottom:7px;font-size:15px}
.toc{background:#f7f9fc;border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:0 0 34px}
.toc h2{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 10px}
.toc ol{margin:0;padding-left:20px}.toc li{margin-bottom:6px}.toc a{color:var(--ink)}

.art-body h2{font-family:var(--fdisp);font-weight:800;font-size:clamp(24px,3.4vw,32px);color:var(--navy);line-height:1.15;margin:40px 0 14px;scroll-margin-top:80px}
.art-body h3{font-family:var(--fdisp);font-weight:700;font-size:20px;color:var(--navy);margin:26px 0 10px}
.art-body p{font-size:17px;margin:0 0 18px}
.art-body ul,.art-body ol{font-size:17px;margin:0 0 18px;padding-left:22px}
.art-body li{margin-bottom:8px}
.art-body strong{color:var(--navy)}
.art-body img{border-radius:14px;border:1px solid var(--line);margin:22px 0}
.art-body figure{margin:24px 0}.art-body figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:8px}
.answer{background:#f2f8ff;border:1px solid #d5e6f7;border-radius:12px;padding:14px 18px;margin:0 0 20px;font-size:16.5px}
.answer b{color:var(--navy)}
.tbl-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:520px}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
th{background:#f4f7fb;color:var(--navy);font-family:var(--fdisp);font-weight:700}
tr:last-child td{border-bottom:none}
blockquote{margin:22px 0;padding:6px 0 6px 20px;border-left:3px solid var(--blue);color:var(--muted);font-size:18px}

.faq{max-width:760px;margin:44px auto 0}
.faq h2{font-family:var(--fdisp);font-size:28px;color:var(--navy);margin:0 0 18px}
.faq details{border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin-bottom:12px;background:#fff}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);padding:12px 0;list-style:none;font-size:16.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--blue);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:0 0 14px;font-size:16px;color:var(--ink)}

.cta-box{max-width:760px;margin:40px auto;background:linear-gradient(135deg,var(--navy),#0b2549);color:#fff;border-radius:18px;padding:28px 26px;text-align:center}
.cta-box h2{font-family:var(--fdisp);font-size:24px;color:#fff;margin:0 0 8px}
.cta-box p{color:rgba(233,240,252,.82);margin:0 0 18px}
.cta-box .btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding:13px 22px;border-radius:999px;border:1px solid transparent}
.btn-wa{background:linear-gradient(135deg,var(--green),#9AD64A);color:var(--navy)}
.btn-ghost{background:transparent;border-color:rgba(120,175,255,.5);color:#fff}
.btn:hover{text-decoration:none;filter:brightness(1.05)}
.btn svg{width:17px;height:17px}

.related{max-width:900px;margin:44px auto 0}
.related h2{font-family:var(--fdisp);font-size:22px;color:var(--navy);margin:0 0 16px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.related a{display:block;border:1px solid var(--line);border-radius:12px;padding:16px;color:var(--ink);font-weight:600;transition:border-color .25s,transform .25s}
.related a:hover{text-decoration:none;border-color:var(--blue);transform:translateY(-3px)}
.related a span{display:block;font-size:12px;color:var(--blue);margin-bottom:6px;font-family:var(--fmono);letter-spacing:.08em;text-transform:uppercase}

/* hub */
.hub-hero{background:linear-gradient(135deg,var(--navy),#0b2549);color:#fff;padding:56px 0 46px;text-align:center}
.hub-hero .eyebrow{background:rgba(120,190,32,.14);border-color:rgba(120,190,32,.4);color:#bfe08a}
.hub-hero h1{font-family:var(--fdisp);font-weight:800;font-size:clamp(32px,5vw,52px);color:#fff;margin:12px 0 12px}
.hub-hero p{color:rgba(233,240,252,.82);font-size:18px;max-width:640px;margin:0 auto}
.hub{padding:40px 0 60px}
.hub-filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:0 0 30px}
.hub-filter{font-family:var(--fdisp);font-weight:600;font-size:13px;color:var(--ink);background:#fff;border:1px solid var(--line);padding:9px 18px;border-radius:999px;cursor:pointer}
.hub-filter.is-active{background:linear-gradient(135deg,var(--blue),var(--blue2));border-color:transparent;color:#fff}
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.pcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s}
.pcard:hover{text-decoration:none;transform:translateY(-4px);box-shadow:0 18px 40px -20px rgba(7,27,58,.4);border-color:rgba(30,123,224,.35)}
.pcard .thumb{aspect-ratio:16/9;overflow:hidden;background:#eef3f8}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.pcard:hover .thumb img{transform:scale(1.05)}
.pcard .pc-body{padding:16px 18px 20px;flex:1;display:flex;flex-direction:column}
.pcard .pc-clu{font-family:var(--fmono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin-bottom:8px}
.pcard h3{font-family:var(--fdisp);font-weight:700;font-size:18px;color:var(--navy);line-height:1.2;margin:0 0 8px}
.pcard p{font-size:14px;color:var(--muted);margin:0 0 14px;flex:1}
.pcard .pc-meta{font-size:12.5px;color:var(--muted)}
.pcard.is-pillar{border-color:rgba(120,190,32,.5)}
.pcard.is-pillar .pc-clu::after{content:" · Pilar";color:var(--green)}

/* footer */
.bfoot{background:var(--navy);color:#c7d6ef;padding:44px 0 26px;margin-top:50px}
.bfoot .cols{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:flex-start}
.bfoot .logo{height:28px;margin-bottom:12px}
.bfoot p{font-size:14px;color:#93a8c8;max-width:320px}
.bfoot .soc{display:flex;gap:12px;margin-top:14px}
.bfoot .soc a{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.06);border:1px solid rgba(120,175,255,.18);color:#cfe0fb;transition:all .25s}
.bfoot .soc a:hover{background:var(--blue);color:#fff;border-color:transparent;text-decoration:none}
.bfoot .soc svg{width:19px;height:19px;fill:currentColor}
.bfoot nav{display:flex;flex-direction:column;gap:8px}
.bfoot nav a{color:#c7d6ef;font-size:14px}
.bfoot .cr{border-top:1px solid rgba(120,175,255,.14);margin-top:28px;padding-top:16px;font-size:12.5px;color:#7f96b8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
@media(max-width:640px){.art-body p,.art-body ul,.art-body ol{font-size:16px}.hero img{aspect-ratio:4/3}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}.pcard,.pcard .thumb img{transition:none}}

/* ===== polish "lucido" ===== */
.art-body>p:first-of-type::first-letter{font-family:var(--fdisp);font-weight:800;font-size:3.3em;line-height:.82;float:left;margin:6px 12px 0 0;color:var(--blue)}
.art-body h2{padding-top:10px}
.art-body h2::before{content:"";display:block;width:46px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--blue),var(--green));margin-bottom:16px}
.art-fig{margin:32px 0}
.art-fig img{width:100%;border-radius:16px;border:1px solid var(--line);box-shadow:0 22px 48px -26px rgba(7,27,58,.4)}
.art-fig figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px;font-style:italic}
.hero{box-shadow:0 34px 72px -34px rgba(7,27,58,.5)}
.hub-hero{position:relative;overflow:hidden}
.hub-hero>.wrap{position:relative;z-index:2}
.hub-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(75% 120% at 50% 0,#000,transparent);mask-image:radial-gradient(75% 120% at 50% 0,#000,transparent)}
tbody tr:nth-child(even) td{background:#fafcfe}
.answer{position:relative;padding-left:46px}
.answer::before{content:"";position:absolute;left:18px;top:19px;width:11px;height:11px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(120,190,32,.22)}
.art h1{background:linear-gradient(180deg,#0b2549,#071B3A);-webkit-background-clip:text;background-clip:text}