.survey-box[data-astro-cid-ozqfowid]{border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius-sm);background:var(--accent-soft);margin:2rem 0 1rem;padding:1rem 1.15rem}.survey-text[data-astro-cid-ozqfowid]{margin:0 0 .6rem;line-height:1.5}.survey-cta[data-astro-cid-ozqfowid]{margin:0}.survey-btn[data-astro-cid-ozqfowid]{font-weight:600}.survey-line[data-astro-cid-ozqfowid]{margin:.75rem 0 0}.kit-box[data-astro-cid-frhadgtg]{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);margin:2rem 0 1rem;padding:1.1rem 1.2rem}.kit-head[data-astro-cid-frhadgtg]{margin:0 0 .35rem;font-size:1.1rem;font-weight:700}.kit-text[data-astro-cid-frhadgtg]{margin:0 0 .7rem;line-height:1.5}.kit-cta[data-astro-cid-frhadgtg]{margin:0 0 .5rem}.kit-btn[data-astro-cid-frhadgtg]{border-radius:var(--radius-sm);background:var(--accent);color:#fff;padding:.55rem 1rem;font-weight:600;text-decoration:none;display:inline-block}.kit-small[data-astro-cid-frhadgtg]{color:var(--muted);margin:0;font-size:.85rem}.kit-line[data-astro-cid-frhadgtg],.kit-footer[data-astro-cid-frhadgtg]{margin:.5rem 0 0}:root{--bg:#f6f4ef;--surface:#fff;--ink:#15201c;--muted:#4f5c57;--accent:#0f6b5c;--accent-hover:#0a5246;--accent-soft:#e7f4f0;--border:#e2ddd4;--shadow:0 1px 2px #15201c0a, 0 8px 24px #15201c0f;--radius:.75rem;--radius-sm:.5rem;--max:72rem;--prose:40rem;--space:1.25rem;--font:"Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;--focus:0 0 0 3px #0f6b5c59}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}body{font-family:var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;margin:0;line-height:1.65;display:flex}main{flex:1}a{color:var(--accent);text-underline-offset:.18em;text-decoration-thickness:1px}a:hover{color:var(--accent-hover)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;box-shadow:var(--focus)}a:focus:not(:focus-visible),button:focus:not(:focus-visible){box-shadow:none;outline:none}img{max-width:100%;height:auto;display:block}.skip-link{z-index:100;background:var(--accent);color:#fff;border-radius:var(--radius-sm);padding:.65rem 1rem;font-weight:600;text-decoration:none;position:absolute;top:-100px;left:1rem}.skip-link:focus{color:#fff;top:1rem}.container{width:min(100% - 2rem, var(--max));max-width:var(--max);margin-left:auto;margin-right:auto}.site-header{background:color-mix(in srgb, var(--surface) 92%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:40;position:sticky;top:0}.nav{justify-content:space-between;align-items:center;gap:1rem;padding:.85rem 0;display:flex;position:relative}.logo{color:var(--ink);letter-spacing:-.02em;flex-shrink:0;font-size:1.12rem;font-weight:700;text-decoration:none}.logo:hover{color:var(--ink)}.logo span{color:var(--accent)}.nav-toggle{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);width:2.5rem;height:2.5rem;color:var(--ink);cursor:pointer;justify-content:center;align-items:center;padding:0;display:none}.nav-toggle-bars{background:currentColor;border-radius:1px;width:1.1rem;height:2px;display:block;position:relative}.nav-toggle-bars:before,.nav-toggle-bars:after{content:"";background:currentColor;border-radius:1px;width:100%;height:2px;position:absolute;left:0}.nav-toggle-bars:before{top:-6px}.nav-toggle-bars:after{top:6px}.nav-toggle[aria-expanded=true] .nav-toggle-bars{background:0 0}.nav-toggle[aria-expanded=true] .nav-toggle-bars:before{top:0;transform:rotate(45deg)}.nav-toggle[aria-expanded=true] .nav-toggle-bars:after{top:0;transform:rotate(-45deg)}.primary-nav{display:flex}.nav-links{flex-wrap:wrap;align-items:center;gap:.25rem 1.25rem;margin:0;padding:0;list-style:none;display:flex}.nav-links a{color:var(--muted);border-radius:.25rem;padding:.35rem .15rem;font-size:.95rem;font-weight:500;text-decoration:none}.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--accent)}.nav-links a[aria-current=page]{box-shadow:inset 0 -2px 0 var(--accent)}@media (width<=640px){.nav-toggle{display:inline-flex}.primary-nav{background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:.75rem 0 1rem;display:none;position:absolute;top:calc(100% + 1px);left:0;right:0}.primary-nav.is-open{display:block}.nav-links{flex-direction:column;align-items:stretch;gap:.15rem}.nav-links a{padding:.7rem .25rem;display:block}.nav-links a[aria-current=page]{box-shadow:none;background:var(--accent-soft);border-radius:var(--radius-sm);padding-inline:.75rem}}.site-footer{border-top:1px solid var(--border);background:var(--surface);color:var(--muted);margin-top:4.5rem;padding:2.75rem 0 2rem;font-size:.92rem}.footer-grid{grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:1.75rem;display:grid}.footer-brand p{max-width:22rem;margin:0;line-height:1.55}.footer-grid h3{text-transform:uppercase;letter-spacing:.07em;color:var(--ink);margin:0 0 .65rem;font-size:.78rem}.footer-grid ul{margin:0;padding:0;list-style:none}.footer-grid li+li{margin-top:.4rem}.footer-grid a{color:var(--muted);text-decoration:none}.footer-grid a:hover{color:var(--accent)}.footer-note{border-top:1px solid var(--border);margin-top:2rem;padding-top:1.1rem;font-size:.85rem}.hero h1{letter-spacing:-.035em;max-width:16ch;margin:0 0 1rem;font-size:clamp(2.05rem,4.5vw,2.85rem);font-weight:750;line-height:1.12}.hero p.lead,.lead{color:var(--muted);max-width:42rem;margin:0 0 1.6rem;font-size:1.15rem;line-height:1.6}.hero-actions{flex-wrap:wrap;align-items:center;gap:.65rem;display:flex}.section{margin-block:2.5rem}.section-heading{letter-spacing:-.02em;margin:0 0 1rem;font-size:clamp(1.35rem,2.5vw,1.65rem);line-height:1.25}.page-title{padding:2.5rem 0 1.25rem}.page-title>h1{letter-spacing:-.03em;margin:0 0 .55rem;font-size:clamp(1.85rem,3.5vw,2.35rem);line-height:1.15}.btn{background:var(--accent);border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:.35rem;padding:.72rem 1.2rem;font-size:.95rem;font-weight:600;line-height:1.2;text-decoration:none;transition:background .15s,border-color .15s,color .15s;display:inline-flex;color:#fff!important}.btn:hover{background:var(--accent-hover);color:#fff!important}.btn-secondary{border-color:color-mix(in srgb, var(--accent) 55%, var(--border));background:0 0;color:var(--accent)!important}.btn-secondary:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-hover)!important}.card-grid{grid-template-columns:repeat(auto-fit,minmax(15.5rem,1fr));gap:1.15rem;margin:1.25rem 0 0;display:grid}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.35rem 1.3rem}.card h3{letter-spacing:-.015em;margin:0 0 .45rem;font-size:1.05rem}.card p{color:var(--muted);margin:0;font-size:.96rem}.article-list{margin:1.35rem 0 0;padding:0;list-style:none}.article-list li{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem;padding:1.3rem 1.35rem;transition:border-color .15s}.article-list li:hover{border-color:color-mix(in srgb, var(--accent) 35%, var(--border))}.article-list h2{letter-spacing:-.02em;margin:.35rem 0 .45rem;font-size:1.22rem;line-height:1.3}.article-list h2 a{color:var(--ink);text-decoration:none}.article-list h2 a:hover{color:var(--accent)}.article-list>li>p:last-child{color:var(--muted);margin:0;font-size:.98rem}.meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:.4rem .55rem;font-size:.88rem;display:flex}.tag{background:var(--accent-soft);color:var(--accent);letter-spacing:.01em;border-radius:999px;padding:.18rem .55rem;font-size:.72rem;font-weight:600;display:inline-block}.article-shell{padding-bottom:3rem}.article-shell .prose{margin-inline:auto}.article-back{color:var(--muted);align-items:center;gap:.35rem;margin-bottom:1.25rem;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-flex}.article-back:hover{color:var(--accent)}.prose>h1{margin-top:.35rem}.prose h1,.prose h2,.prose h3{letter-spacing:-.02em;color:var(--ink);line-height:1.25}.prose h2{margin-top:2.35rem;margin-bottom:.75rem;padding-top:.35rem;font-size:1.35rem}.prose h3{margin-top:1.75rem;margin-bottom:.5rem;font-size:1.12rem}.prose p,.prose li{color:#24302c;font-size:1.02rem}.prose p{margin:0 0 1.15rem}.prose ul,.prose ol{margin:0 0 1.2rem;padding-left:1.25rem}.prose li+li{margin-top:.4rem}.prose strong{color:var(--ink);font-weight:650}.prose blockquote{border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);margin:1.5rem 0;padding:.85rem 1.1rem}.prose blockquote p:last-child{margin-bottom:0}.prose code{background:color-mix(in srgb, var(--accent-soft) 70%, var(--surface));border-radius:.3rem;padding:.12em .35em;font-family:ui-monospace,Cascadia Code,SF Mono,Menlo,Consolas,monospace;font-size:.88em}.prose pre{color:#e8f2ef;border-radius:var(--radius);background:#1b2a26;margin:1.4rem 0;padding:1rem 1.1rem;font-size:.88rem;line-height:1.55;overflow-x:auto}.prose pre code{color:inherit;font-size:inherit;background:0 0;padding:0}.prose hr{border:none;border-top:1px solid var(--border);margin:2.25rem 0}.prose a{font-weight:500}.form{gap:1rem;max-width:28rem;margin-top:1.25rem;display:grid}.form label{gap:.35rem;font-size:.92rem;font-weight:600;display:grid}.form input,.form textarea{font:inherit;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);padding:.7rem .8rem}.form input:focus-visible,.form textarea:focus-visible{border-color:var(--accent)}.form textarea{resize:vertical;min-height:8rem}.callout{background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);margin:1.5rem 0;padding:1rem 1.15rem}.callout strong{color:var(--ink)}.sr-only{clip-path:inset(50%);clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.section-cta{margin-top:1.25rem}.section-lead{margin-bottom:.5rem}.quiz-hub-list{gap:1.15rem;margin:1.35rem 0 0;padding:0;list-style:none;display:grid}.quiz-hub-list .card h2{letter-spacing:-.02em;margin:.35rem 0 .45rem;font-size:1.22rem;line-height:1.3}.quiz-hub-list .card h2 a{color:var(--ink);text-decoration:none}.quiz-hub-list .card h2 a:hover{color:var(--accent)}.quiz-root{margin:1.5rem 0 2rem}.quiz-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.35rem 1.3rem}.quiz-panel-title{letter-spacing:-.02em;margin:0 0 .5rem;font-size:1.35rem}.quiz-lead,.quiz-meta,.quiz-privacy-note,.quiz-best,.quiz-muted,.quiz-board-note{color:var(--muted);font-size:.96rem}.quiz-score{margin:.5rem 0;font-size:1.15rem;font-weight:600}.quiz-field{flex-direction:column;gap:.35rem;margin:1rem 0;font-size:.92rem;font-weight:600;display:flex}.quiz-field input{font:inherit;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);max-width:20rem;padding:.7rem .8rem;font-weight:400}.quiz-field input:focus-visible{border-color:var(--accent)}.quiz-status-bar{color:var(--muted);justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;font-size:.92rem;font-weight:600;display:flex}.quiz-timer{font-variant-numeric:tabular-nums;color:var(--accent)}.quiz-timer.is-urgent{color:#b42318}.quiz-prompt{white-space:pre-wrap;margin:0 0 1rem;font-size:1.08rem;font-weight:600}.quiz-choices{border:0;flex-direction:column;gap:.55rem;margin:0;padding:0;display:flex}.quiz-choice{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);cursor:pointer;align-items:flex-start;gap:.65rem;padding:.75rem .9rem;font-weight:400;display:flex}.quiz-choice:hover{border-color:color-mix(in srgb, var(--accent) 40%, var(--border));background:var(--accent-soft)}.quiz-choice input{accent-color:var(--accent);margin-top:.2rem}.quiz-actions{flex-wrap:wrap;gap:.65rem;margin-top:1.25rem;display:flex}.quiz-warn{color:#b42318;margin:.75rem 0 0;font-size:.92rem}.quiz-error{color:#b42318;border-radius:var(--radius-sm);background:#fef3f2;border:1px solid #fecdca;padding:1rem}.quiz-board{background:var(--accent-soft);border-radius:var(--radius-sm);border-left:4px solid var(--accent);margin:1.25rem 0;padding:1rem 1.1rem}.quiz-board h3{margin:0 0 .35rem;font-size:1.05rem}.quiz-board-list{margin:.5rem 0 0;padding-left:1.25rem}.quiz-board-list li{margin:.25rem 0}.quiz-board-list li.is-latest{color:var(--accent-hover);font-weight:700}.quiz-review{margin:.75rem 0 0;padding-left:1.25rem}.quiz-review li{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);margin-bottom:1rem;padding:.75rem .9rem;list-style-position:inside}.quiz-review li.is-correct{border-color:color-mix(in srgb, var(--accent) 45%, var(--border));background:var(--accent-soft)}.quiz-review li.is-wrong{background:#fef3f2;border-color:#fecdca}.quiz-review-prompt{white-space:pre-wrap;margin:.35rem 0;font-weight:600}.quiz-explain{color:var(--muted);margin:.35rem 0 0;font-size:.94rem}:root{--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4.5rem;--radius-lg:1.1rem;--shadow-sm:0 1px 2px color-mix(in srgb, var(--ink) 6%, transparent);--shadow:0 1px 2px color-mix(in srgb, var(--ink) 5%, transparent), 0 6px 20px color-mix(in srgb, var(--ink) 6%, transparent);--shadow-lg:0 2px 4px color-mix(in srgb, var(--ink) 5%, transparent), 0 18px 40px color-mix(in srgb, var(--ink) 10%, transparent);--ease:cubic-bezier(.2, .7, .2, 1);--t:.18s;--step--1:.875rem;--step-0:1.0625rem;--step-1:1.25rem;--step-2:1.5rem;--step-3:clamp(1.7rem, 1.3rem + 1.6vw, 2.2rem);--step-4:clamp(2.1rem, 1.5rem + 2.8vw, 3.25rem);--measure:68ch;--prose:44rem;--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;color-scheme:light}body{font-size:var(--step-0);text-rendering:optimizelegibility;background:var(--bg);line-height:1.7}h1,h2,h3,h4{font-family:var(--font-head,var(--font));color:var(--ink);text-wrap:balance}p{text-wrap:pretty}::selection{background:color-mix(in srgb, var(--accent) 22%, transparent)}a{transition:color var(--t) var(--ease)}:focus-visible{outline:3px solid var(--focus-ring,var(--accent));outline-offset:2px;box-shadow:none;border-radius:4px}.site-header{background:color-mix(in srgb, var(--surface) 85%, transparent);-webkit-backdrop-filter:saturate(1.4)blur(12px)}.nav{min-height:3.75rem;padding:.7rem 0}.logo{font-family:var(--font-head,var(--font));white-space:nowrap;font-size:1.2rem;line-height:1.7rem;display:inline-block}.logo:before{content:"";vertical-align:top;background:var(--logo-mark);border-radius:.5rem;flex:none;width:1.7rem;height:1.7rem;margin-right:.55rem;display:inline-block;box-shadow:inset 0 0 0 1px #ffffff40}.nav-links{gap:.15rem .35rem}.nav-links a{color:var(--muted);transition:background var(--t) var(--ease), color var(--t) var(--ease);border-radius:999px;padding:.45rem .75rem}.nav-links a:hover{background:var(--accent-soft);color:var(--accent-ink,var(--accent))}.nav-links a[aria-current=page]{box-shadow:none;background:var(--accent-soft);color:var(--accent-ink,var(--accent));font-weight:600}.nav-toggle{width:2.75rem;height:2.75rem;transition:background var(--t) var(--ease)}.nav-toggle:hover{background:var(--accent-soft)}.nav-toggle-bars,.nav-toggle-bars:before,.nav-toggle-bars:after{transition:transform var(--t) var(--ease), top var(--t) var(--ease), background var(--t) var(--ease)}@media (width<=640px){.primary-nav{visibility:hidden;opacity:0;pointer-events:none;transition:opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility 0s linear var(--t);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-lg);padding:.5rem 1rem 1rem;display:block;transform:translateY(-6px)}.primary-nav.is-open{visibility:visible;opacity:1;pointer-events:auto;transition:opacity var(--t) var(--ease), transform var(--t) var(--ease);transform:none}.nav-links a{border-radius:var(--radius-sm);padding:.8rem .9rem;font-size:1rem}.nav-links a[aria-current=page]{padding-inline:.9rem}}.hero{padding:clamp(2rem,5vw,4rem) 0 clamp(1.5rem,4vw,3rem)}.hero-grid{background:var(--hero-bg);border:1px solid var(--border);border-radius:calc(var(--radius-lg) + .4rem);box-shadow:var(--shadow);grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);align-items:center;gap:clamp(1.5rem,4vw,3rem);padding:clamp(1.5rem,4.5vw,3.5rem);display:grid;position:relative;overflow:hidden}.hero-grid:after{content:"";background:var(--hero-glow);filter:blur(10px);opacity:.55;pointer-events:none;border-radius:50%;width:26rem;height:26rem;position:absolute;inset:auto -10% -45% auto}.hero-copy,.hero-panel{z-index:1;position:relative}.eyebrow{background:var(--surface);border:1px solid var(--border);color:var(--accent-ink,var(--accent));letter-spacing:.04em;text-transform:uppercase;border-radius:999px;align-items:center;gap:.45rem;margin:0 0 .9rem;padding:.3rem .75rem;font-size:.8rem;font-weight:700;display:inline-flex}.eyebrow:before{content:"";background:var(--accent-2,var(--accent));border-radius:50%;width:.5rem;height:.5rem}.hero h1{font-size:var(--step-4);letter-spacing:-.035em;max-width:18ch;margin-bottom:1.1rem;line-height:1.08}.hero p.lead,.lead{color:var(--muted);max-width:40rem;font-size:clamp(1.08rem,1rem + .4vw,1.22rem);line-height:1.65}.hero-actions{gap:.75rem;margin-top:1.6rem}.hero-panel{background:color-mix(in srgb, var(--surface) 92%, transparent);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:1.1rem}.hero-panel-title{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:.1rem .4rem .6rem;font-size:.78rem;font-weight:700}.hero-panel-list{gap:.4rem;margin:0;padding:0;list-style:none;display:grid}.hero-panel-list a{border-radius:var(--radius-sm);color:var(--ink);transition:background var(--t) var(--ease), transform var(--t) var(--ease);align-items:center;gap:.8rem;padding:.7rem .75rem;text-decoration:none;display:flex}.hero-panel-list a:hover{background:var(--accent-soft);color:var(--ink);transform:translate(2px)}.hero-panel-list strong{font-size:.98rem;line-height:1.3;display:block}.hero-panel-list small{color:var(--muted);font-size:.84rem;line-height:1.4;display:block}.hp-ico{background:var(--accent-soft);border-radius:.7rem;flex:none;place-items:center;width:2.4rem;height:2.4rem;font-size:1.15rem;display:grid}@media (width<=860px){.hero-grid{grid-template-columns:1fr}.hero-grid:after{width:18rem;height:18rem}}.section{padding:clamp(1.5rem,4vw,2.75rem) 0}.section-heading{font-size:var(--step-3);letter-spacing:-.03em;margin-bottom:.25rem;line-height:1.2}.page-title>h1{font-size:var(--step-4);line-height:1.1}.btn{box-shadow:0 1px 2px color-mix(in srgb, var(--accent) 30%, transparent), 0 6px 16px -6px color-mix(in srgb, var(--accent) 55%, transparent);transition:background var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);border-radius:999px;padding:.78rem 1.35rem;font-weight:650}.btn:hover{box-shadow:0 2px 4px color-mix(in srgb, var(--accent) 30%, transparent), 0 10px 22px -8px color-mix(in srgb, var(--accent) 60%, transparent);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-secondary{background:var(--surface);box-shadow:var(--shadow-sm)}.btn-secondary:hover{box-shadow:var(--shadow)}.btn[disabled],.btn[aria-disabled=true]{box-shadow:none;transform:none}.card-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:1rem}.card{border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);padding:1.35rem;position:relative}.card:hover{box-shadow:var(--shadow-lg);border-color:color-mix(in srgb, var(--accent) 30%, var(--border));transform:translateY(-2px)}.card h3{font-size:1.1rem}.card h3 a{color:var(--ink);text-decoration:none}.card h3 a:hover{color:var(--accent)}.card-grid>.card:before{content:"";background:var(--accent-2,var(--accent));border-radius:0 0 3px 3px;width:2.2rem;height:3px;position:absolute;top:0;left:1.35rem}.article-list li{border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);padding:1.3rem 1.4rem;position:relative}.article-list li:hover{box-shadow:var(--shadow-lg);border-color:color-mix(in srgb, var(--accent) 35%, var(--border));transform:translateY(-2px)}.article-list h2{font-size:1.18rem;line-height:1.32}.article-list h2 a:after{content:"";border-radius:inherit;position:absolute;inset:0}.article-list h2 a:focus-visible{outline:none}.article-list li:has(h2 a:focus-visible){outline:3px solid var(--focus-ring,var(--accent));outline-offset:2px}.article-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,19rem),1fr));gap:1rem;display:grid}.article-grid li{flex-direction:column;margin:0;display:flex}.tag{background:var(--accent-soft);color:var(--accent-ink,var(--accent));padding:.2rem .6rem;font-size:.72rem}.meta time{font-variant-numeric:tabular-nums}.prose{max-width:var(--prose)}.prose p,.prose li{color:var(--ink-2,var(--ink));font-size:var(--step-0);line-height:1.75}.prose p,.prose ul,.prose ol,.prose blockquote{max-width:var(--measure)}.prose h2{font-size:var(--step-2);letter-spacing:-.025em;margin-top:2.5rem}.prose h3{font-size:var(--step-1)}.prose a{text-decoration-color:color-mix(in srgb, var(--accent) 45%, transparent);text-underline-offset:.2em;text-decoration-thickness:2px}.prose a:hover{text-decoration-color:currentColor}.prose img{border-radius:var(--radius)}.prose blockquote{border-left-width:4px;padding:1rem 1.2rem}.prose code{font-family:var(--font-mono)}.prose pre{border-radius:var(--radius);box-shadow:var(--shadow-sm)}.prose table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.95rem;display:block;overflow-x:auto}.prose th,.prose td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:.6rem .7rem}.prose th{background:var(--accent-soft);color:var(--ink);font-weight:650}.article-shell .prose>h1{font-size:var(--step-4);letter-spacing:-.035em;line-height:1.1}.article-back{border:1px solid var(--border);background:var(--surface);transition:background var(--t) var(--ease), color var(--t) var(--ease);border-radius:999px;padding:.35rem .75rem .35rem .55rem}.article-back:hover{background:var(--accent-soft)}.callout{border-radius:0 var(--radius) var(--radius) 0}.form input,.form textarea,.form select,input[type=search],select{border-radius:var(--radius-sm);border:1px solid color-mix(in srgb, var(--ink) 18%, var(--border));background:var(--surface);color:var(--ink);transition:border-color var(--t) var(--ease), box-shadow var(--t) var(--ease)}.form input:hover,.form textarea:hover{border-color:color-mix(in srgb, var(--accent) 45%, var(--border))}.form input:focus-visible,.form textarea:focus-visible,.form select:focus-visible,input[type=search]:focus-visible,select:focus-visible,input[type=number]:focus-visible{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);outline:none}input[type=checkbox],input[type=radio]{accent-color:var(--accent);width:1.05rem;height:1.05rem}.site-footer{margin-top:var(--space-8);background:var(--footer-bg,var(--surface));border-top:1px solid var(--border);position:relative}.site-footer:before{content:"";background:var(--brand-gradient);opacity:.85;height:3px;position:absolute;top:-1px;left:0;right:0}.footer-brand h3{font-family:var(--font-head,var(--font));text-transform:none;letter-spacing:-.01em;align-items:center;gap:.5rem;font-size:1.05rem;display:flex}.footer-brand h3:before{content:"";background:var(--logo-mark);border-radius:.38rem;width:1.25rem;height:1.25rem}.footer-grid a{transition:color var(--t) var(--ease), transform var(--t) var(--ease);padding:.1rem 0;display:inline-block}.footer-grid a:hover{transform:translate(2px)}@media (prefers-color-scheme:dark){:root{color-scheme:dark}.prose pre{border:1px solid var(--border)}img{opacity:.96}.quiz-error,.sd-err,.sd-status.err,.mp-status.err{color:#fda29b!important}.sd-status.ok,.mp-status.ok{color:#75e0a7!important}}@media (prefers-reduced-motion:reduce){.card:hover,.article-list li:hover,.btn:hover,.hero-panel-list a:hover,.footer-grid a:hover{transform:none}}@media print{.site-header,.site-footer,.hero-panel{display:none!important}.hero-grid{box-shadow:none;background:0 0;border:0;padding:0}}:root{--bg:#f4f8f6;--surface:#fff;--ink:#10201b;--ink-2:#22332d;--muted:#4a5b55;--accent:#0f6b5c;--accent-hover:#0a5246;--accent-ink:#0b5a4c;--accent-soft:#e2f3ec;--accent-2:#f2b627;--border:#dbe5e0;--focus-ring:#0f6b5c;--btn-bg:#0f6b5c;--hero-bg:linear-gradient(135deg, #e6f8f0 0%, #f2f9fd 55%, #fff7e2 100%);--hero-glow:radial-gradient(circle, #9fe5cb 0%, transparent 68%);--logo-mark:linear-gradient(135deg, #0f6b5c 0%, #22a183 58%, #f2b627 100%);--brand-gradient:linear-gradient(90deg, #0f6b5c, #22a183 55%, #f2b627);--footer-bg:#fff}@media (prefers-color-scheme:dark){:root{--bg:#0c1412;--surface:#13201c;--ink:#e6f1ec;--ink-2:#cddbd5;--muted:#9db1aa;--accent:#52d1ae;--accent-hover:#80e0c6;--accent-ink:#80e0c6;--accent-soft:#183630;--border:#253731;--hero-bg:linear-gradient(135deg, #10291f 0%, #122029 60%, #29230f 100%);--hero-glow:radial-gradient(circle, #1f6b55 0%, transparent 68%);--footer-bg:#0f1916}.btn:not(.btn-secondary),.kit-btn,.free-dl,.skip-link{background:var(--btn-bg)!important;color:#fff!important}.btn:not(.btn-secondary):hover,.kit-btn:hover,.free-dl:hover{filter:brightness(1.12)}.btn.btn-secondary{border-color:color-mix(in srgb, var(--accent) 50%, var(--border));background:var(--surface)!important;color:var(--accent)!important}}.risk-notice strong,.risk-notice p,.mp-warn strong,.sd-warn strong{color:#4a2a00!important}.risk-notice a{color:#93370d!important}.article-shell .prose>h1{font-size:clamp(1.9rem,1.4rem + 2vw,2.6rem);line-height:1.15}.breadcrumb{gap:.4rem}.breadcrumb a{color:var(--muted);text-decoration:none}.breadcrumb a:hover{color:var(--accent)}.breadcrumb span{color:var(--muted);opacity:.7}.course-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,18rem),1fr));gap:1.1rem;margin:1.5rem 0 2.5rem;padding:0;list-style:none;display:grid}.course-card{flex-direction:column;display:flex}.course-card h2{margin:.35rem 0 .4rem;font-size:1.3rem}.course-card h2 a{color:var(--ink);text-decoration:none}.course-card h2 a:hover{color:var(--accent)}.course-card .section-cta{margin-top:auto;padding-top:.5rem}.course-teaches{color:var(--muted);margin:.25rem 0 .9rem;padding-left:1.1rem;font-size:.93rem}.course-teaches li{margin:.2rem 0}.course-progress{margin:.4rem 0 .6rem}.course-progress-bar{background:var(--accent-soft);border-radius:999px;height:8px;overflow:hidden}.course-progress-bar span{background:var(--accent);border-radius:inherit;height:100%;transition:width .4s var(--ease,ease);display:block}.course-progress-text{color:var(--muted);margin:.35rem 0 0;font-size:.86rem}.course-progress-lg{max-width:34rem}.course-how{margin-top:1rem}.course-syllabus{margin:2rem 0}.lesson-list{gap:.6rem;max-width:52rem;margin:1rem 0;padding:0;list-style:none;display:grid}.lesson-list a{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--ink);grid-template-columns:2.4rem 1fr auto auto;align-items:center;gap:.9rem;padding:.9rem 1rem;text-decoration:none;transition:border-color .2s,box-shadow .2s,transform .2s;display:grid}.lesson-list a:hover{border-color:color-mix(in srgb, var(--accent) 40%, var(--border));box-shadow:var(--shadow-sm);transform:translateY(-1px)}.lesson-num{background:var(--accent-soft);width:2.4rem;height:2.4rem;color:var(--accent);border-radius:50%;place-items:center;font-weight:700;display:grid}.lesson-text{flex-direction:column;gap:.15rem;min-width:0;display:flex}.lesson-title{font-weight:650}.lesson-desc{color:var(--muted);font-size:.88rem}.lesson-time{color:var(--muted);white-space:nowrap;font-size:.82rem}.lesson-done-badge{border:2px solid var(--border);color:#0000;border-radius:50%;place-items:center;width:1.6rem;height:1.6rem;font-size:.85rem;display:grid}.lesson-list li.is-done .lesson-done-badge{background:var(--accent);border-color:var(--accent);color:#fff}.lesson-list li.is-done .lesson-num{background:var(--accent);color:#fff}.lesson-quiz a{border-style:dashed}@media (width<=560px){.lesson-list a{grid-template-columns:2.2rem 1fr auto}.lesson-time{display:none}}.lesson-complete-box{border:1px solid var(--border);border-radius:var(--radius);background:var(--accent-soft);flex-wrap:wrap;align-items:center;gap:.8rem 1.2rem;margin:2.25rem 0 1rem;padding:1.1rem 1.2rem;display:flex}.lesson-complete-note{color:var(--muted);margin:0;font-size:.9rem}.lesson-nav{grid-template-columns:1fr 1fr;gap:.8rem;margin:1rem 0 1.5rem;display:grid}.lesson-nav a{border:1px solid var(--border);border-radius:var(--radius);color:var(--ink);background:var(--surface);flex-direction:column;gap:.2rem;padding:.85rem 1rem;font-weight:600;text-decoration:none;display:flex}.lesson-nav a span{color:var(--accent);font-size:.8rem;font-weight:500}.lesson-nav-next{text-align:right}.lesson-nav a:hover{border-color:var(--accent)}@media (width<=560px){.lesson-nav{grid-template-columns:1fr}.lesson-nav-next{text-align:left}}.course-callout{border-radius:var(--radius);border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border));background:linear-gradient(135deg, var(--accent-soft), var(--surface));margin:2rem 0 1.25rem;padding:1.15rem 1.25rem}.course-callout p{margin:0 0 .6rem}.course-callout-kicker{text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-size:.75rem;font-weight:700}.course-callout-title{font-size:1.15rem;font-weight:700}.course-callout-title a{color:var(--ink);text-decoration:none}.course-callout .btn{text-decoration:none}.course-quiz{max-width:var(--measure,46rem);gap:1rem;margin:1.5rem 0;display:grid}.cq-item{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin:0;padding:1rem 1.1rem 1.1rem}.cq-item legend{float:left;flex-direction:column;gap:.25rem;width:100%;margin-bottom:.7rem;padding:0;display:flex}.cq-item legend+*{clear:both}.cq-num{text-transform:uppercase;letter-spacing:.06em;color:var(--accent);font-size:.78rem;font-weight:700}.cq-text{color:var(--ink);font-size:1.05rem;font-weight:650}.cq-choices{gap:.45rem;display:grid}.cq-choice{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;align-items:flex-start;gap:.65rem;padding:.6rem .75rem;display:flex}.cq-choice:hover{border-color:var(--accent)}.cq-choice input{accent-color:var(--accent);margin-top:.25rem}.cq-choice:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}.cq-choice:has(input:focus-visible){outline:3px solid var(--focus,var(--accent));outline-offset:2px}.cq-item.is-missing{border-color:#c2410c}.cq-choice.is-answer{background:color-mix(in srgb, #16a34a 14%, var(--surface));border-color:#15803d}.cq-choice.is-picked-wrong{background:color-mix(in srgb, #dc2626 12%, var(--surface));border-color:#b91c1c}.cq-item.is-correct{border-left:5px solid #16a34a}.cq-item.is-wrong{border-left:5px solid #dc2626}.cq-feedback{color:var(--ink);margin:.7rem 0 0;font-size:.93rem}.cq-error{color:#b91c1c;margin:.5rem 0;font-weight:600}.cq-actions{flex-wrap:wrap;align-items:center;gap:.6rem;display:flex}.cq-result{max-width:var(--measure,46rem);border-radius:var(--radius);border:2px solid var(--border);background:var(--surface);margin:1.5rem 0;padding:1.2rem 1.3rem}.cq-result.is-pass{background:color-mix(in srgb, #16a34a 10%, var(--surface));border-color:#16a34a}.cq-result.is-fail{background:color-mix(in srgb, #f59e0b 10%, var(--surface));border-color:#d97706}.cq-result h2{margin-top:0}.quiz-lessons-note{border-radius:var(--radius-sm);background:var(--accent-soft);padding:.7rem .9rem;font-size:.93rem}.cert-controls{max-width:46rem}.cert-form{gap:.45rem;max-width:32rem;margin:1rem 0 2rem;display:grid}.cert-form h2{margin:0 0 .3rem}.cert-form label{margin-top:.4rem;font-weight:600}.cert-form input,.cert-form select{font:inherit;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);padding:.65rem .75rem}.cert-form .btn{justify-self:start;margin-top:.5rem}.cert-hint{color:var(--muted);margin:.3rem 0;font-size:.88rem}.cert-actions{flex-wrap:wrap;gap:.6rem;margin:1rem 0 .4rem;display:flex}.verify-result{border-radius:var(--radius-sm);padding:.8rem 1rem;font-weight:600}.verify-result.is-pass{background:color-mix(in srgb, #16a34a 14%, var(--surface));border:1px solid #16a34a}.verify-result.is-fail{background:color-mix(in srgb, #dc2626 10%, var(--surface));border:1px solid #dc2626}.cert-sheet{margin:1.5rem 0;overflow-x:auto}.cert{--c-ink:#10201b;--c-accent:#0f6b5c;--c-gold:#c8961e;aspect-ratio:297/210;width:100%;max-width:62rem;color:var(--c-ink);border:10px solid var(--c-accent);box-shadow:var(--shadow-lg);box-sizing:border-box;background:#fffdf8;margin:0 auto;padding:12px;container-type:inline-size}.cert-inner{border:2px solid var(--c-gold);text-align:center;box-sizing:border-box;background:radial-gradient(#fffdf8 55%,#f4efe2 100%);flex-direction:column;justify-content:center;align-items:center;height:100%;padding:3cqw 5cqw;display:flex}.cert p{margin:0}.cert-logo{color:var(--c-accent);letter-spacing:-.02em;font-size:3.4cqw;font-weight:800}.cert-logo span{color:var(--c-gold)}.cert-title{letter-spacing:.12em;text-transform:uppercase;font-family:Georgia,Times New Roman,serif;font-size:4.4cqw;font-weight:700;margin:1.2cqw 0 2.2cqw!important}.cert-small{color:#4a5a55;font-family:Georgia,serif;font-size:1.9cqw}.cert-name{border-bottom:2px solid var(--c-gold);overflow-wrap:anywhere;min-width:50%;padding:0 4cqw .8cqw;font-family:Georgia,Times New Roman,serif;font-size:5.6cqw;font-style:italic;font-weight:700;line-height:1.15;margin:1cqw 0 1.6cqw!important}.cert-course{color:var(--c-accent);font-size:3.3cqw;font-weight:750;margin:.8cqw 0!important}.cert-score{font-family:Georgia,serif;font-size:1.9cqw}.cert-foot{grid-template-columns:1fr auto 1fr;align-items:center;gap:2cqw;width:100%;margin-top:3cqw;font-size:1.9cqw;font-weight:700;display:grid}.cert-foot>div:first-child{text-align:left}.cert-foot>div:last-child{text-align:right}.cert-label{letter-spacing:.1em;text-transform:uppercase;color:#4a5a55;font-size:1.3cqw;font-weight:500;display:block}.cert-code{font-family:var(--font-mono,ui-monospace, monospace);letter-spacing:.04em}.cert-seal{border:.5cqw solid var(--c-accent);width:10cqw;height:10cqw;color:var(--c-accent);background:#e2f3ec;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;font-size:1.8cqw;line-height:1.2;display:flex}.cert-seal span+span{letter-spacing:.1em;text-transform:uppercase;font-size:1.05cqw;font-weight:600}.cert-disclaimer{color:#4a5a55;font-size:1.25cqw;line-height:1.5;margin-top:2.6cqw!important}.cert-tip{border:1px solid var(--border);border-radius:var(--radius-sm);max-width:46rem;color:var(--muted);text-align:center;margin:1.5rem auto .5rem;padding:.9rem 1.1rem;font-size:.95rem}.cert-tip a{color:var(--accent);font-weight:600}.cert-more{text-align:center}@media print{@page{size:landscape;margin:8mm}.cert-page .cert-controls,.cert-page .cert-tip,.cert-page .cert-more,.site-header,.site-footer,.skip-link,ins.adsbygoogle,.google-auto-placed{display:none!important}html,body{background:#fff!important}.cert-page{max-width:none!important;margin:0!important;padding:0!important}.cert-sheet{margin:0;overflow:visible}.cert{aspect-ratio:auto;width:260mm;max-width:none;height:183mm;box-shadow:none;-webkit-print-color-adjust:exact;print-color-adjust:exact;break-inside:avoid}}.course-shell [hidden],.cert-page [hidden],.verify-form [hidden],.course-quiz [hidden]{display:none!important}nav.breadcrumb{flex-wrap:wrap;align-items:center;margin-bottom:.6rem;font-size:.9rem;display:flex}.course-quiz .cq-choice.is-answer{background:color-mix(in srgb, #16a34a 14%, var(--surface));border-color:#15803d}.course-quiz .cq-choice.is-picked-wrong{background:color-mix(in srgb, #dc2626 12%, var(--surface));border-color:#b91c1c}.cq-feedback strong{font-weight:700}@media print{.cert-sheet{justify-content:center;align-items:center;min-height:190mm;display:flex}}