:root{--ink:#0d1b2f;--muted:#64748b;--line:#e5eaf1;--brand:#0d315e;--brand2:#08284c;--accent:#f4b92f;--soft:#f7f9fc;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6}img,svg{display:block;max-width:100%}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.93);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:10px;font-weight:900}.brand img{width:31px;height:31px}.nav-links{display:flex;gap:22px;font-weight:750;font-size:.9rem}.nav-links a:hover{color:#0b65d8}.nav-actions{display:flex;gap:10px;align-items:center}.icon-btn,.menu-btn{width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;display:grid;place-items:center;cursor:pointer}.menu-btn{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 18px;font-weight:850;cursor:pointer;transition:.2s}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--brand2);color:#fff;box-shadow:0 10px 24px rgba(8,40,76,.16)}.btn-secondary{background:#fff;border:1px solid var(--line)}.eyebrow{display:inline-flex;background:#e8f2ff;color:#1770d5;border-radius:999px;padding:7px 11px;font-size:.72rem;font-weight:900;text-transform:uppercase;letter-spacing:.05em}h1,h2,h3{line-height:1.08;letter-spacing:-.035em;margin:0}h1{font-size:clamp(2.6rem,5vw,4.8rem)}.section-title{font-size:clamp(1.55rem,2.4vw,2.25rem)}.hero{padding:55px 0 30px}.hero-grid{display:grid;grid-template-columns:.84fr 1.16fr;gap:48px;align-items:center}.hero h1{margin:18px 0}.hero p,.page-hero p{color:#536178;font-size:1.08rem}.hero-meta{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:22px}.readtime{color:#708096;font-size:.9rem}.hero-card{background:linear-gradient(135deg,#f2f6ff,#f9f6ff);border:1px solid #e8edf6;border-radius:28px;padding:16px;box-shadow:0 18px 60px rgba(16,35,66,.08)}.section{padding:42px 0}.soft{background:linear-gradient(180deg,#fbfcff,#f7f9fd)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:22px}.section-link{font-size:.9rem;font-weight:850;color:#0c66d6}.action-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.action-card{padding:20px 14px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:18px;transition:.2s}.action-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(17,56,107,.08)}.action-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin:0 auto 12px;font-size:1.35rem}.action-card h3{font-size:.95rem}.action-card p{font-size:.79rem;color:var(--muted);line-height:1.35}.bg-purple{background:#f1e9ff}.bg-green{background:#e5f8ee}.bg-yellow{background:#fff3d8}.bg-blue{background:#e6f2ff}.bg-red{background:#ffe9e8}.bg-gray{background:#eef1f5}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;transition:.2s}.card:hover{transform:translateY(-3px);box-shadow:0 16px 44px rgba(18,35,67,.08)}.thumb{aspect-ratio:16/9;display:grid;place-items:center;background:linear-gradient(135deg,#e8f5ff,#efe9ff);padding:20px;text-align:center;font-weight:900;color:#17365f}.card-body{padding:16px}.card h3{font-size:1.03rem;line-height:1.25}.meta{font-size:.78rem;color:#748195;margin-top:10px}.content-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:30px}.guide-list{display:flex;flex-direction:column;gap:14px}.guide-item{display:grid;grid-template-columns:84px 1fr;gap:12px;align-items:center}.mini-thumb{width:84px;aspect-ratio:4/3;border-radius:12px;background:linear-gradient(135deg,#eef5ff,#f7edff);display:grid;place-items:center;font-size:1.6rem}.guide-item h3{font-size:.94rem;line-height:1.25}.newsletter{background:linear-gradient(135deg,#edf4ff,#f8f9ff);border:1px solid #dfe8f5;border-radius:22px;padding:30px;display:grid;grid-template-columns:1fr .9fr;gap:28px;align-items:center}.newsletter-form{display:flex;gap:10px}.newsletter-form input{flex:1;min-width:0;border:1px solid #dce3ef;border-radius:12px;padding:13px 14px}.footer{padding:40px 0 26px;border-top:1px solid var(--line);margin-top:40px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:28px}.footer h3{font-size:.9rem;margin-bottom:12px}.footer a,.footer p{display:block;color:#67768a;font-size:.86rem;margin:7px 0}.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);color:#8893a3;font-size:.78rem}.mobile-panel{display:none}.search-panel{position:fixed;inset:0;background:rgba(8,24,45,.55);z-index:70;display:none;padding:90px 20px}.search-panel.open{display:block}.search-box{max-width:720px;margin:auto;background:#fff;border-radius:20px;padding:18px;box-shadow:0 20px 80px rgba(0,0,0,.2)}.search-box input{width:100%;border:1px solid var(--line);border-radius:12px;padding:14px 16px}.search-result{display:block;padding:12px;border-radius:10px}.search-result:hover{background:#f5f7fb}.page-hero{padding:56px 0 30px;background:linear-gradient(180deg,#f7faff,#fff)}.page-hero h1{margin:16px 0}.breadcrumbs{font-size:.8rem;color:#75839a;margin-bottom:12px}.breadcrumbs a{color:#356aa4}.directory-toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 24px}.directory-toolbar input,.directory-toolbar select{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff}.directory-toolbar input{flex:1;min-width:220px}.directory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.directory-card{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff;transition:.2s}.directory-card:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(17,42,80,.08)}.tool-logo{width:42px;height:42px;border-radius:12px;background:#eef4ff;display:grid;place-items:center;font-weight:900}.pill{display:inline-block;border-radius:999px;padding:5px 8px;font-size:.64rem;font-weight:900;background:#eef3f8;color:#425168;text-transform:uppercase;letter-spacing:.04em}.recommender{border:1px solid #dfe7f3;background:linear-gradient(135deg,#f8fbff,#f9f7ff);border-radius:22px;padding:24px;margin-top:24px}.recommender-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.choice{border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px;text-align:left;cursor:pointer}.choice.active{border-color:#2a72d4;box-shadow:0 0 0 3px #e6f0ff}.recommend-results{margin-top:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.compare-bar{position:fixed;left:50%;transform:translateX(-50%);bottom:18px;z-index:45;background:#0b2d55;color:#fff;border-radius:16px;padding:12px 14px;box-shadow:0 16px 50px rgba(0,0,0,.2);display:none;align-items:center;gap:12px;max-width:calc(100% - 24px)}.compare-bar.show{display:flex}.compare-bar small{opacity:.75}.checkline{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:.82rem;color:#607089}.comparison-table{width:100%;border-collapse:collapse;margin-top:24px}.comparison-table th,.comparison-table td{padding:14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.comparison-table th{background:#f7f9fc}.comparison-table .label{font-weight:800;white-space:nowrap}.tool-hero{display:grid;grid-template-columns:1fr 320px;gap:42px;align-items:start}.score-card{border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 18px 60px rgba(16,35,66,.08)}.score{font-size:2.8rem;font-weight:900}.score span{font-size:1rem;color:var(--muted)}.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0}.box{border:1px solid var(--line);border-radius:16px;padding:18px}.box h3{margin-bottom:10px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:48px;align-items:start}.article{padding:50px 0}.article .lede{font-size:1.18rem;color:#526178}.article-body h2{font-size:1.8rem;margin-top:38px}.article-body p,.article-body li{color:#34425a}.toc{position:sticky;top:96px;border:1px solid var(--line);border-radius:16px;padding:18px}.toc a{display:block;font-size:.83rem;color:#64748b;padding:6px 0}.callout{border-left:4px solid #2e76db;background:#f1f6ff;padding:16px 18px;border-radius:0 12px 12px 0;margin:24px 0}.test-table{width:100%;border-collapse:collapse;margin:24px 0}.test-table th,.test-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}.test-table th{background:#f7f9fc}.author-card{border:1px solid var(--line);border-radius:18px;padding:18px;display:flex;gap:14px;align-items:center;margin-top:34px}.avatar{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#dbe9ff,#efe6ff);display:grid;place-items:center;font-weight:900}.legal{max-width:820px;margin:auto;padding:55px 20px}.legal h1{font-size:2.6rem}.legal h2{margin-top:30px;font-size:1.5rem}.legal p,.legal li{color:#46556c}.notice{background:#fff7e1;border:1px solid #f4df9c;padding:14px 16px;border-radius:12px;color:#6e5818}
@media(max-width:980px){.nav-links,.nav-actions .subscribe{display:none}.menu-btn{display:grid}.hero-grid,.content-grid,.newsletter,.article-layout,.tool-hero{grid-template-columns:1fr}.action-grid{grid-template-columns:repeat(3,1fr)}.directory-grid,.recommend-results{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.toc{position:static;order:-1}.mobile-panel{position:fixed;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:18px 20px;z-index:49;display:none}.mobile-panel.open{display:block}.mobile-panel a{display:block;padding:12px 0;font-weight:800}}
@media(max-width:640px){.container{width:min(calc(100% - 28px),var(--max))}.nav{height:66px}.mobile-panel{top:66px}.hero{padding-top:28px}.hero-grid{display:flex;flex-direction:column}.hero-card{order:-1;padding:10px}.action-grid{gap:9px}.action-card{padding:14px 7px}.action-card p{display:none}.cards,.directory-grid,.recommend-results,.recommender-grid,.pros-cons{grid-template-columns:1fr}.newsletter{padding:22px}.newsletter-form{flex-direction:column}.footer-grid{grid-template-columns:1fr}.section{padding:32px 0}.comparison-table{font-size:.82rem}.comparison-table th,.comparison-table td{padding:10px}.compare-bar{left:12px;right:12px;transform:none}}

/* ===== ATALUMA V3 ===== */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
.kpi{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff}
.kpi strong{display:block;font-size:1.45rem}.kpi span{font-size:.78rem;color:var(--muted)}
.lab-card{border:1px solid #dce7f5;border-radius:22px;background:linear-gradient(135deg,#f4f8ff,#faf8ff);padding:26px}
.lab-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.lab-step{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}.lab-step b{display:block;margin-bottom:5px}.lab-step span{font-size:.8rem;color:var(--muted)}
.status{display:inline-flex;align-items:center;gap:7px;padding:6px 9px;border-radius:999px;font-size:.7rem;font-weight:850;background:#fff4d9;color:#7a5b0c}.status::before{content:"";width:7px;height:7px;border-radius:50%;background:#f1b82f}
.status.ready{background:#e8f8ef;color:#19714a}.status.ready::before{background:#2cb574}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff}.guide-card h3{font-size:1.05rem;margin:12px 0}.guide-card p{font-size:.86rem;color:var(--muted)}.guide-card .cluster{font-size:.72rem;font-weight:850;color:#0d66cd}
.reco-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}.reco-controls select{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff}
.transparency-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.transparency-card{border:1px solid var(--line);border-radius:18px;padding:20px}.transparency-card h3{margin-bottom:8px}.transparency-card p{font-size:.86rem;color:var(--muted)}
.launch-check{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fff}.launch-check ul{margin-bottom:0}
.ad-slot{display:none}
@media(max-width:980px){.kpi-grid,.lab-steps,.guide-grid,.transparency-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.kpi-grid,.lab-steps,.guide-grid,.transparency-grid,.reco-controls{grid-template-columns:1fr}}

/* V4 editorial */
.source-list{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fbfcff;margin-top:34px}.source-list h3{margin-bottom:12px}.source-list a{display:block;color:#0c66d6;font-size:.88rem;margin:8px 0;word-break:break-word}.article-kicker{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 20px}.key-takeaways{border:1px solid #dce6f4;background:#f6f9ff;border-radius:18px;padding:20px;margin:24px 0}.key-takeaways h2{font-size:1.25rem;margin-bottom:10px}.editorial-banner{background:linear-gradient(135deg,#eef5ff,#faf8ff);border:1px solid #dce7f4;border-radius:20px;padding:22px;margin:24px 0}.intent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.intent-card{border:1px solid var(--line);border-radius:16px;padding:18px}.intent-card p{font-size:.84rem;color:var(--muted);margin-bottom:0}.seo-table{width:100%;border-collapse:collapse}.seo-table th,.seo-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.seo-table th{background:#f7f9fc}@media(max-width:780px){.intent-grid{grid-template-columns:1fr}.seo-table{font-size:.82rem}}

/* ATALUMA V4.9 — jerarquía visual */
:root{--surface-blue:#f2f7ff;--surface-violet:#f7f4ff;--surface-mint:#f1faf7;--surface-amber:#fff9ea;--surface-rose:#fff4f4;--surface-slate:#f4f7fa}
main>section+section{border-top:1px solid rgba(20,42,72,.055)}
.page-home main>section:nth-of-type(even),.page-guides main>section:nth-of-type(even),.page-tools main>section:nth-of-type(even),.page-comparisons main>section:nth-of-type(even),.page-lab main>section:nth-of-type(even){background:var(--surface-blue)}
.page-guides .page-hero{background:linear-gradient(180deg,var(--surface-blue),#fff)}
.page-comparisons .page-hero{background:linear-gradient(180deg,var(--surface-violet),#fff)}
.page-lab .page-hero,.page-results .page-hero{background:linear-gradient(180deg,var(--surface-mint),#fff)}
.guide-card,.tool-card,.compare-card,.lab-card,.card{transition:transform .18s ease,box-shadow .18s ease}
.guide-card:hover,.tool-card:hover,.compare-card:hover,.lab-card:hover,.card:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(34,55,88,.08)}
.guide-card{border-top:3px solid #8bb9ef}.compare-card{border-top:3px solid #a995e2}.lab-card{border-top:3px solid #6bc5ad}.tool-card{border-top:3px solid #78aee8}
.editorial-banner{background:var(--surface-slate);border-left:4px solid #8ba0b8}
.notice-positive{background:var(--surface-mint)!important;border-left-color:#16856b!important}.notice-warning{background:var(--surface-amber)!important;border-left-color:#a96800!important}.notice-risk{background:var(--surface-rose)!important;border-left-color:#b84949!important}
.key-takeaways{background:var(--surface-blue);border:1px solid #dce9f8;border-left:4px solid #6ea6df;border-radius:16px;padding:22px 24px;margin:30px 0}
.article-body h2::after{content:"";display:block;width:42px;height:3px;border-radius:99px;background:#d7e7f7;margin-top:10px}
.article-body table{border-radius:14px;overflow:hidden;box-shadow:0 0 0 1px rgba(34,55,88,.07)}.article-body thead{background:var(--surface-blue)}
.status.ready{background:var(--surface-mint);color:#126e5a;border-color:#d4eee6}
@media(prefers-reduced-motion:reduce){.guide-card,.tool-card,.compare-card,.lab-card,.card{transition:none}.guide-card:hover,.tool-card:hover,.compare-card:hover,.lab-card:hover,.card:hover{transform:none}}

/* Laboratorio V5.4 */
.lab-experiment-card{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
  background:#fff;
  border:1px solid rgba(15,42,74,.10);
  border-radius:18px;
  padding:28px;
  box-shadow:0 10px 30px rgba(15,42,74,.06);
}
.lab-experiment-card p{margin:0 0 12px}
.lab-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.mini-card{background:#fff;border:1px solid rgba(15,42,74,.10);border-radius:16px;padding:22px}
@media (max-width:800px){
  .lab-experiment-card{grid-template-columns:1fr}
  .lab-actions{justify-content:flex-start}
  .grid-3{grid-template-columns:1fr}
  .section-head{flex-direction:column}
}