/* Blog Top Up Water — dark coherente con site.css */
.b-hero{padding:140px 24px 56px;max-width:880px;margin:0 auto;text-align:center}
.b-hero .lab{font-size:11px;font-weight:600;color:var(--c);text-transform:uppercase;letter-spacing:.14em;margin-bottom:14px}
.b-hero h1{font-family:var(--fd);font-size:clamp(30px,4.4vw,46px);font-weight:700;line-height:1.12;color:var(--wp);margin-bottom:14px}
.b-hero p{font-size:16px;color:var(--g3);line-height:1.65;max-width:640px;margin:0 auto}
.b-bread{font-size:12px;color:var(--g4);margin-bottom:18px}
.b-bread a{color:var(--g3);text-decoration:none}
.b-bread a:hover{color:var(--c)}
.b-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;max-width:1100px;margin:0 auto;padding:0 24px 100px}
.b-card{background:var(--nl);border:1px solid rgba(255,255,255,.05);border-radius:16px;padding:26px 22px;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:10px;transition:all .3s;position:relative;overflow:hidden}
.b-card:hover{border-color:rgba(0,212,170,.2);transform:translateY(-2px)}
.b-card .tagline{font-size:11px;font-weight:600;color:var(--c);text-transform:uppercase;letter-spacing:.1em}
.b-card h2{font-family:var(--fd);font-size:18px;font-weight:600;color:var(--wp);line-height:1.3;margin:0}
.b-card p{font-size:13px;color:var(--g3);line-height:1.6;margin:0}
.b-card .b-meta{font-size:11px;color:var(--g4);margin-top:auto;padding-top:12px;display:flex;justify-content:space-between;align-items:center}
.b-card .b-meta .arrow{color:var(--c);font-weight:700}
.post{max-width:760px;margin:0 auto;padding:130px 24px 80px}
.post-meta{display:flex;gap:14px;align-items:center;font-size:12px;color:var(--g4);margin-bottom:14px;flex-wrap:wrap}
.post-meta .ptag{background:rgba(0,212,170,.08);color:var(--c);padding:3px 10px;border-radius:50px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;font-size:10px}
.post h1{font-family:var(--fd);font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.15;color:var(--wp);margin-bottom:14px}
.post .lead{font-size:17px;color:var(--g2);line-height:1.65;margin-bottom:36px;border-left:3px solid var(--c);padding-left:16px}
.post h2{font-family:var(--fd);font-size:22px;font-weight:600;color:var(--wp);margin:40px 0 12px;line-height:1.3}
.post h3{font-family:var(--fd);font-size:17px;font-weight:600;color:var(--wp);margin:28px 0 8px}
.post p{font-size:15px;color:var(--g2);line-height:1.75;margin-bottom:14px}
.post ul,.post ol{color:var(--g2);font-size:15px;line-height:1.75;margin:0 0 16px 22px}
.post ul li,.post ol li{margin-bottom:6px}
.post strong{color:var(--wp);font-weight:600}
.post a{color:var(--c);text-decoration:underline;text-underline-offset:3px}
.post a:hover{color:var(--w)}
.post blockquote{border-left:3px solid var(--c);padding:8px 0 8px 18px;margin:24px 0;color:var(--g3);font-style:italic;font-size:15px;line-height:1.6}
.post .callout{background:linear-gradient(135deg,var(--nl),rgba(0,212,170,.04));border:1px solid rgba(0,212,170,.1);border-radius:12px;padding:20px 22px;margin:28px 0}
.post .callout strong{display:block;color:var(--c);margin-bottom:6px;font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.post .callout p{margin:0;font-size:14px;color:var(--g2)}
.post .ftable{width:100%;border-collapse:collapse;margin:22px 0;font-size:13px}
.post .ftable th,.post .ftable td{padding:10px 12px;text-align:left;border-bottom:1px solid rgba(255,255,255,.05)}
.post .ftable th{color:var(--c);font-weight:600;text-transform:uppercase;letter-spacing:.06em;font-size:11px}
.post .ftable td{color:var(--g2)}
.post .ftable tr:last-child td{border-bottom:0}
.post-cta{background:linear-gradient(135deg,var(--nl),rgba(0,212,170,.05));border:1px solid rgba(0,212,170,.12);border-radius:18px;padding:30px;margin:48px 0 24px;text-align:center}
.post-cta h3{font-family:var(--fd);font-size:22px;color:var(--wp);margin-bottom:8px}
.post-cta p{color:var(--g3);font-size:14px;margin-bottom:18px}
.post-cta .bp{display:inline-flex;align-items:center;gap:8px;background:var(--c);color:var(--n);padding:12px 26px;border-radius:50px;font-size:14px;font-weight:600;text-decoration:none}
.post-cta .bp:hover{transform:translateY(-2px)}
.related{margin-top:54px;padding-top:32px;border-top:1px solid rgba(255,255,255,.05)}
.related h3{font-size:13px;color:var(--c);text-transform:uppercase;letter-spacing:.1em;font-weight:600;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.related-grid a{background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.05);border-radius:10px;padding:14px 16px;text-decoration:none;color:var(--g2);font-size:13px;font-weight:500;line-height:1.4;transition:all .2s;display:block}
.related-grid a:hover{border-color:rgba(0,212,170,.2);color:var(--wp)}
@media(max-width:700px){.post{padding:110px 18px 60px}.b-grid{padding:0 18px 60px}}