:root{color-scheme:dark}
[data-theme="light"]{color-scheme:light}
[data-theme="light"] .theme-page{
  --light-electric:#2f9df4;
  --light-surface:rgba(188,222,255,.86);
  --light-surface-strong:rgba(207,233,255,.95);
  --light-surface-soft:rgba(157,207,255,.7);
  --light-border:rgba(23,76,172,.22);
  --light-shadow:rgba(23,72,151,.2)
}
body.theme-page{transition:background-color .35s ease,color .25s ease}
.theme-page .theme-hero-light{display:none}
[data-theme="light"] .theme-page .theme-hero-dark{display:none}
[data-theme="light"] .theme-page .theme-hero-light{display:block}
.theme-toggle{display:inline-grid;place-items:center;width:36px;height:36px;flex:0 0 36px;padding:0;border:1px solid rgba(255,255,255,.14);border-radius:50%;background:rgba(8,12,24,.45);color:#f1f5fd;font:700 1rem/1 'Space Grotesk',sans-serif;cursor:pointer;backdrop-filter:blur(12px);transition:color .2s,background .2s,border-color .2s,transform .2s,box-shadow .2s}
.theme-toggle:hover{transform:translateY(-1px);border-color:rgba(79,172,254,.5);box-shadow:0 6px 18px rgba(0,0,0,.18)}
.theme-toggle:focus-visible{outline:3px solid rgba(79,172,254,.32);outline-offset:3px}
.theme-icon-moon{display:none}
[data-theme="light"] .theme-icon-sun{display:none}
[data-theme="light"] .theme-icon-moon{display:inline}

[data-theme="light"] body.theme-page{background:#319cf2!important;color:#0f1929}
[data-theme="light"] body.theme-page::before{background:linear-gradient(180deg,rgba(41,142,234,.04),rgba(46,115,220,.13)),var(--theme-bg-light) center/cover no-repeat!important;opacity:1!important}
[data-theme="light"] body.theme-page #pc{opacity:.16}
[data-theme="light"] body.theme-page nav.s{background:rgba(176,217,255,.9)!important;border-bottom-color:var(--light-border)!important;box-shadow:0 10px 30px rgba(23,72,151,.16)!important}
[data-theme="light"] body.theme-page:not(.article-page) .nlogo,
[data-theme="light"] body.theme-page nav.s .nlogo{color:#0f1929}
[data-theme="light"] body.theme-page .nlogo .ia{color:#1749b5}
[data-theme="light"] body.theme-page:not(.article-page) .nlinks a,
[data-theme="light"] body.theme-page nav.s .nlinks a{color:#49627f}
[data-theme="light"] body.theme-page:not(.article-page) .nlinks a:hover,
[data-theme="light"] body.theme-page:not(.article-page) .nlinks a.act,
[data-theme="light"] body.theme-page nav.s .nlinks a:hover,
[data-theme="light"] body.theme-page nav.s .nlinks a.act{color:#1e40af}
[data-theme="light"] .article-page .nlogo{color:#0f1929}
[data-theme="light"] .article-page .nlinks a{color:#294e78}
[data-theme="light"] .article-page .nlinks a:hover,
[data-theme="light"] .article-page .nlinks a.act{color:#1e40af}
[data-theme="light"] body.theme-page:not(.article-page) .theme-toggle,
[data-theme="light"] body.theme-page nav.s .theme-toggle{background:rgba(205,233,255,.84);border-color:var(--light-border);color:#1e3a5f;box-shadow:inset 0 1px 0 rgba(255,255,255,.62),0 5px 16px rgba(23,72,151,.14)}
[data-theme="light"] .article-page .theme-toggle{background:rgba(205,233,255,.84);border-color:var(--light-border);color:#1e3a5f;box-shadow:inset 0 1px 0 rgba(255,255,255,.62),0 5px 16px rgba(23,72,151,.14)}
[data-theme="light"] .blog-page .slbl,
[data-theme="light"] .formation-page .slbl{color:#1749b5}
[data-theme="light"] .blog-page .blog-title span,
[data-theme="light"] .formation-page .hero-title span{background:linear-gradient(90deg,#1749b5,#0874c9 52%,#6d28d9);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* Shared titanium surfaces */
[data-theme="light"] .theme-page .blog-card,
[data-theme="light"] .theme-page .featured-card,
[data-theme="light"] .theme-page .mod-card,
[data-theme="light"] .theme-page .acc-item,
[data-theme="light"] .theme-page .why-card,
[data-theme="light"] .theme-page .art-body,
[data-theme="light"] .theme-page .nl-box,
[data-theme="light"] .theme-page .takeaway,
[data-theme="light"] .theme-page .quiz-zone,
[data-theme="light"] .theme-page .rel-card{
  background:repeating-linear-gradient(45deg,rgba(30,64,175,.026) 0,rgba(30,64,175,.026) 1px,transparent 1px,transparent 11px),repeating-linear-gradient(-45deg,rgba(30,64,175,.02) 0,rgba(30,64,175,.02) 1px,transparent 1px,transparent 11px),var(--light-surface)!important;
  border-color:var(--light-border)!important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.62),inset 0 -1px 0 rgba(30,64,175,.09),0 12px 36px var(--light-shadow)!important
}
[data-theme="light"] .theme-page .blog-card:hover,
[data-theme="light"] .theme-page .featured-card:hover,
[data-theme="light"] .theme-page .rel-card:hover,
[data-theme="light"] .theme-page .mod-card:hover{box-shadow:inset 0 1px 0 rgba(255,255,255,.72),0 18px 44px rgba(23,72,151,.26)!important}

/* Blog index */
[data-theme="light"] .blog-page .blog-title,
[data-theme="light"] .blog-page .featured-title,
[data-theme="light"] .blog-page .card-title,
[data-theme="light"] .blog-page .nl-title,
[data-theme="light"] .blog-page .flogo{color:#0f1929}
[data-theme="light"] .blog-page .blog-sub,
[data-theme="light"] .blog-page .featured-excerpt,
[data-theme="light"] .blog-page .card-excerpt,
[data-theme="light"] .blog-page .nl-sub{color:#3a567a}
[data-theme="light"] .blog-page .blog-meta-bar,
[data-theme="light"] .blog-page .art-meta{color:#294e78}
[data-theme="light"] .blog-page .filt-pill{background:var(--light-surface-soft);border-color:var(--light-border);color:#294e78;box-shadow:inset 0 1px 0 rgba(255,255,255,.5)}
[data-theme="light"] .blog-page .filt-pill:hover,
[data-theme="light"] .blog-page .filt-pill.act{background:var(--light-surface-strong);border-color:#1e40af;color:#1e40af;box-shadow:0 6px 18px rgba(30,64,175,.18)}
[data-theme="light"] .blog-page .feat-img-overlay{background:linear-gradient(to top,rgba(188,222,255,.98) 0%,rgba(125,190,249,.28) 48%,transparent 100%)}
[data-theme="light"] .blog-page .card-read{border-color:var(--light-border);color:#294e78;background:rgba(181,218,253,.72)}
[data-theme="light"] .blog-page [style*="color:#4facfe"]{color:#1e40af!important}
[data-theme="light"] .blog-page [style*="color:#a78bfa"]{color:#6d28d9!important}
[data-theme="light"] .blog-page [style*="color:#00ff9d"]{color:#047857!important}
[data-theme="light"] .blog-page [style*="color:#ffd060"]{color:#b45309!important}
[data-theme="light"] .blog-page [style*="color:#ff4e6a"]{color:#be123c!important}

/* Blog articles */
[data-theme="light"] .article-page{--cc:var(--theme-accent-light)}
[data-theme="light"] .article-page .art-hero{background:#319cf2}
[data-theme="light"] .article-page .art-hero-overlay{background:linear-gradient(to top,rgba(173,217,255,.98) 0%,rgba(80,164,242,.36) 52%,rgba(24,102,201,.08) 100%)}
[data-theme="light"] .article-page .art-hero-title{color:#0f1929;text-shadow:0 2px 20px rgba(205,234,255,.68)}
[data-theme="light"] .article-page .art-meta-bar{color:#294e78}
[data-theme="light"] .article-page .breadcrumb{color:#294e78;border-color:var(--light-border);background:rgba(195,228,255,.7)}
[data-theme="light"] .article-page .breadcrumb:hover{color:#0f1929;border-color:#1e40af}
[data-theme="light"] .article-page .art-body h3,
[data-theme="light"] .article-page .art-body strong,
[data-theme="light"] .article-page .related-title,
[data-theme="light"] .article-page .rel-title,
[data-theme="light"] .article-page .nl-title,
[data-theme="light"] .article-page .flogo{color:#0f1929}
[data-theme="light"] .article-page .art-body p,
[data-theme="light"] .article-page .art-body li,
[data-theme="light"] .article-page .takeaway p{color:#2f4968}
[data-theme="light"] .article-page .art-body em{color:#49627f}
[data-theme="light"] .article-page .art-body td{border-color:var(--light-border);color:#2f4968;background:rgba(181,218,253,.62)}
[data-theme="light"] .article-page .art-body th{border-color:color-mix(in srgb,var(--cc) 30%,transparent);background:color-mix(in srgb,var(--cc) 10%,rgb(193,225,255));color:var(--cc)}
[data-theme="light"] .article-page .art-body blockquote,
[data-theme="light"] .article-page .takeaway{background:color-mix(in srgb,var(--cc) 8%,rgba(191,224,255,.92))!important;color:#2f4968}
[data-theme="light"] .article-page .art-nav,
[data-theme="light"] .article-page .related{border-color:rgba(30,64,175,.12)}
[data-theme="light"] .article-page .back-btn{background:var(--light-surface-soft);border-color:var(--light-border);color:#294e78!important}
[data-theme="light"] .article-page .back-btn:hover{border-color:#1e40af;color:#1e40af!important}
[data-theme="light"] .article-page .rel-meta,
[data-theme="light"] .article-page .nl-sub{color:#6580a0}
[data-theme="light"] .article-page .nl-input,
[data-theme="light"] .blog-page .nl-input{background:rgba(211,235,255,.92)!important;border-color:var(--light-border)!important;color:#0f1929;box-shadow:inset 0 1px 3px rgba(30,64,175,.1)}
[data-theme="light"] .article-page .nl-input::placeholder,
[data-theme="light"] .blog-page .nl-input::placeholder{color:#7890aa}

/* Formation page */
[data-theme="light"] .formation-page .hero-title,
[data-theme="light"] .formation-page .stit,
[data-theme="light"] .formation-page .mc-title,
[data-theme="light"] .formation-page .acc-ht,
[data-theme="light"] .formation-page .mod-content h1,
[data-theme="light"] .formation-page .mod-content h3,
[data-theme="light"] .formation-page .why-title,
[data-theme="light"] .formation-page .quiz-title,
[data-theme="light"] .formation-page .quiz-q-text,
[data-theme="light"] .formation-page .flogo{color:#0f1929}
[data-theme="light"] .formation-page .hero-sub,
[data-theme="light"] .formation-page .mod-content p,
[data-theme="light"] .formation-page .mod-content li,
[data-theme="light"] .formation-page .why-desc{color:#3a567a}
[data-theme="light"] .formation-page .h-pill{background:var(--light-surface-soft);border-color:var(--light-border);color:#294e78;box-shadow:inset 0 1px 0 rgba(255,255,255,.5)}
[data-theme="light"] .formation-page .prog-wrap{background:rgba(177,217,255,.9);border-bottom-color:var(--light-border);box-shadow:0 8px 24px rgba(23,72,151,.14)}
[data-theme="light"] .formation-page .prog-label,
[data-theme="light"] .formation-page .prog-lbl,
[data-theme="light"] .formation-page .mc-dur,
[data-theme="light"] .formation-page .acc-dur,
[data-theme="light"] .formation-page .acc-arr,
[data-theme="light"] .formation-page .final-sub{color:#49627f}
[data-theme="light"] .formation-page .prog-label{color:#294e78}
[data-theme="light"] .formation-page .prog-step.active .prog-lbl,
[data-theme="light"] .formation-page .prog-step.done .prog-lbl{color:#3a567a}
[data-theme="light"] .formation-page .prog-dot{background:rgba(203,232,255,.9);border-color:var(--light-border);color:#284766;box-shadow:inset 0 1px 0 rgba(255,255,255,.58),0 4px 12px rgba(23,72,151,.16)}
[data-theme="light"] .formation-page .prog-connector{background:rgba(30,64,175,.12)}
[data-theme="light"] .formation-page .acc-hd{background:rgba(177,216,253,.58)}
[data-theme="light"] .formation-page .acc-hd:hover{background:rgba(204,231,255,.82)}
[data-theme="light"] .formation-page .acc-ct,
[data-theme="light"] .formation-page .mod-foot{border-color:rgba(30,64,175,.1)}
[data-theme="light"] .formation-page .mod-content h4,
[data-theme="light"] .formation-page .mod-content em{color:#49627f}
[data-theme="light"] .formation-page .mod-content strong{color:#0f1929}
[data-theme="light"] .formation-page .mod-content td{border-color:var(--light-border);color:#2f4968;background:rgba(181,218,253,.58)}
[data-theme="light"] .formation-page .mod-content blockquote{background:rgba(30,64,175,.055);color:#49627f}
[data-theme="light"] .formation-page .btn-b{background:var(--light-surface-soft);border-color:var(--light-border);color:#1e3a5f}
[data-theme="light"] .formation-page .btn-b:hover{border-color:#1e40af;color:#1e40af}
[data-theme="light"] .formation-page .locked-badge{background:rgba(30,64,175,.05);border-color:rgba(30,64,175,.12);color:#6580a0}
[data-theme="light"] .formation-page .mod-card.locked{opacity:.76;filter:saturate(.72)}
[data-theme="light"] .formation-page .mod-card-lock{color:#6580a0}
[data-theme="light"] .formation-page .quiz-opt{background:rgba(181,219,254,.68);border-color:var(--light-border)}
[data-theme="light"] .formation-page .quiz-opt label,
[data-theme="light"] .formation-page .quiz-result-sub,
[data-theme="light"] .formation-page .quiz-expl{color:#3a567a}

/* Formation immersive reader */
[data-theme="light"] .formation-page .lesson-overlay{background:rgba(32,106,199,.66)}
[data-theme="light"] .formation-page .lesson-shell{background:linear-gradient(145deg,rgba(207,233,255,.99),rgba(171,214,255,.99));box-shadow:0 30px 90px rgba(16,61,136,.38),0 0 70px color-mix(in srgb,var(--lesson-accent,#4facfe) 12%,transparent)}
[data-theme="light"] .formation-page .lesson-top{background:rgba(191,225,255,.84);border-bottom-color:var(--light-border)}
[data-theme="light"] .formation-page .lesson-title,
[data-theme="light"] .formation-page .lesson-heading,
[data-theme="light"] .formation-page .lesson-takeaway strong,
[data-theme="light"] .formation-page .lesson-card h3,
[data-theme="light"] .formation-page .rule-box h3,
[data-theme="light"] .formation-page .family-detail strong,
[data-theme="light"] .formation-page .era-panel h3,
[data-theme="light"] .formation-page .myth-q,
[data-theme="light"] .formation-page .process-node strong,
[data-theme="light"] .formation-page .interactive-panel h3,
[data-theme="light"] .formation-page .lesson-quiz legend{color:#0f1929}
[data-theme="light"] .formation-page .lesson-count,
[data-theme="light"] .formation-page .lesson-copy,
[data-theme="light"] .formation-page .lesson-takeaway p,
[data-theme="light"] .formation-page .lesson-card p,
[data-theme="light"] .formation-page .rule-box code,
[data-theme="light"] .formation-page .family-detail,
[data-theme="light"] .formation-page .era-panel p,
[data-theme="light"] .formation-page .myth-a,
[data-theme="light"] .formation-page .summary-row p,
[data-theme="light"] .formation-page .interactive-panel p,
[data-theme="light"] .formation-page .roadmap-item span,
[data-theme="light"] .formation-page .roadmap-score,
[data-theme="light"] .formation-page .lesson-quiz-option span,
[data-theme="light"] .formation-page .lesson-quiz-expl,
[data-theme="light"] .formation-page .lesson-nav-meta,
[data-theme="light"] .formation-page .lesson-nav-meta strong{color:#3a567a}
[data-theme="light"] .formation-page .lesson-lead{color:#284766}
[data-theme="light"] .formation-page .lesson-close{background:rgba(209,234,255,.86);border-color:var(--light-border);color:#1e3a5f}
[data-theme="light"] .formation-page .lesson-progress{background:rgba(30,64,175,.1)}
[data-theme="light"] .formation-page .lesson-goals li,
[data-theme="light"] .formation-page .lesson-card,
[data-theme="light"] .formation-page .rule-box,
[data-theme="light"] .formation-page .family-detail,
[data-theme="light"] .formation-page .myth-card,
[data-theme="light"] .formation-page .summary-row,
[data-theme="light"] .formation-page .process-node,
[data-theme="light"] .formation-page .scenario-btn,
[data-theme="light"] .formation-page .roadmap-item,
[data-theme="light"] .formation-page .lesson-quiz-option{background:rgba(190,225,255,.78);border-color:var(--light-border);color:#284766}
[data-theme="light"] .formation-page .lesson-takeaway,
[data-theme="light"] .formation-page .era-panel,
[data-theme="light"] .formation-page .interactive-panel{background:color-mix(in srgb,var(--lesson-accent,#4facfe) 8%,rgb(190,224,255))}
[data-theme="light"] .formation-page .era-tab,
[data-theme="light"] .formation-page .choice-chip{background:rgba(191,225,255,.78);border-color:var(--light-border);color:#2f4968}
[data-theme="light"] .formation-page .choice-chip:hover,
[data-theme="light"] .formation-page .choice-chip.active{color:#0f1929}
[data-theme="light"] .formation-page .prompt-field input,
[data-theme="light"] .formation-page .prompt-field textarea{background:rgba(211,235,255,.92);border-color:var(--light-border);color:#0f1929}
[data-theme="light"] .formation-page .prompt-preview{background:#bfe2ff;color:#284766}
[data-theme="light"] .formation-page .process-node small{color:#6580a0}
[data-theme="light"] .formation-page .lesson-bottom{background:rgba(183,220,255,.97);border-top-color:var(--light-border)}
[data-theme="light"] .formation-page .lesson-nav-btn{background:rgba(207,233,255,.88);border-color:var(--light-border);color:#1e3a5f}
[data-theme="light"] .formation-page .lesson-quiz-result.pass{color:#047857}
[data-theme="light"] .formation-page .lesson-quiz-result.fail{color:#be123c}

[data-theme="light"] .theme-page footer{border-top-color:var(--light-border)!important;color:#49627f;box-shadow:0 -1px 0 rgba(207,233,255,.68)}
[data-theme="light"] .theme-page .flinks a{color:#6580a0}
[data-theme="light"] .theme-page .flinks a:hover{color:#1e40af}

@media(max-width:620px){
  body.theme-page nav{padding-left:12px!important;padding-right:12px!important}
  .theme-page .nlogo{font-size:1rem;white-space:nowrap}
  .theme-page .nlinks{gap:7px}
  .theme-page .nlinks a{font-size:.64rem;white-space:nowrap}
  .theme-toggle{width:30px;height:30px;flex-basis:30px;font-size:.84rem}
}
@media(prefers-reduced-motion:reduce){body.theme-page,.theme-toggle{transition:none}}