:root{--bg-canvas:#231b19;--bg-surface:#332924;--bg-surface-hover:#40322a;--text-primary:#f4f1ea;--text-muted:#d2c5b6;--accent-primary:#d4a84b;--accent-secondary:#ead49e;--border-subtle:#79623c;--ease-kinetic:cubic-bezier(.16,1,.3,1);--shadow-elevation:none;--glow-accent:none;--glass-backdrop:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg-canvas);color:var(--text-primary);font:18px/1.65 Charter,Cambria,Georgia,serif;overflow-wrap:anywhere;hyphens:auto}a{color:var(--accent-secondary);text-underline-offset:4px}a:hover{color:#fff}button,input,select,textarea{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}img{display:block;width:100%;height:auto;object-fit:cover}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.35rem,5vw,4.8rem);line-height:1.05;letter-spacing:-.035em;max-width:18ch;margin-bottom:24px}h2{font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.15;font-weight:400}h3{font-size:1.25rem;line-height:1.3}p,li{max-width:72ch}small,.muted{color:var(--text-muted)}:focus-visible{outline:3px solid var(--accent-primary);outline-offset:5px}.skip{position:absolute;left:16px;top:-100px;z-index:20;background:var(--accent-primary);color:var(--bg-canvas);padding:10px}.skip:focus{top:12px}.site-header{position:relative;margin:16px 20px 0;padding:17px 22px;border:1px solid var(--border-subtle);border-radius:18px;background:var(--bg-surface);display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;color:var(--text-primary);text-decoration:none;font-size:19px;font-weight:700;white-space:nowrap;hyphens:none}.brand-mark{width:29px;height:29px;border:1px solid var(--accent-primary);border-radius:50%;display:grid;place-items:center;color:var(--accent-primary);font-size:17px;flex-shrink:0}.site-nav{display:flex;align-items:center;gap:18px}.site-nav a{font-size:15px;white-space:nowrap;text-decoration:none;color:var(--text-muted)}.site-nav a[aria-current=page],.site-nav a:hover{color:var(--accent-primary);text-decoration:underline}.menu-toggle{display:none;background:none;border:1px solid var(--border-subtle);color:var(--text-primary);width:42px;height:42px;font-size:30px;line-height:1}.wrap{max-width:1200px;margin:0 auto;padding:0 28px}main{padding-top:58px!important;padding-bottom:72px!important}.eyebrow{font-variant:small-caps;letter-spacing:.12em;font-size:14px;color:var(--accent-primary);margin-bottom:15px}.lead{font-size:1.2rem;color:var(--text-muted);max-width:58ch}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:45px;align-items:center;padding-bottom:52px}.hero-study{position:relative;min-height:380px;background:#2c221e;border:1px solid var(--border-subtle)}.hero-beauty-photograph{position:absolute;width:66%;height:74%;right:5%;top:7%;object-fit:cover;aspect-ratio:4/3;border:1px solid var(--border-subtle)}.cosmetic-render{position:absolute;background:#bda881;box-shadow:inset 16px 0 22px #e0cdaa,inset -18px 0 24px #77654e;border:1px solid #c8b795}.serum-bottle{width:90px;height:172px;left:10%;bottom:13%;border-radius:13px 13px 9px 9px;transform:rotate(-10deg);z-index:2}.serum-bottle:before{content:"";position:absolute;width:44px;height:49px;left:22px;top:-45px;background:#d6c8af;border:1px solid #95836b;box-shadow:inset -12px 0 10px #a99a80}.render-label{position:absolute;left:8px;right:8px;top:52px;text-align:center;color:#332924;border-top:1px solid #665039;border-bottom:1px solid #665039;padding:8px 0;font-size:12px;letter-spacing:.12em}.balm-jar{height:90px;width:130px;right:8%;bottom:6%;border-radius:8px 8px 17px 17px;transform:rotate(8deg);z-index:3;background:#735747;box-shadow:inset 15px 0 20px #a17c64,inset -15px 0 20px #49372d}.balm-jar:before{content:"";position:absolute;top:-20px;left:-4px;right:-4px;height:25px;background:#d4a84b;border:1px solid #e8cf92;border-radius:5px}.balm-jar .render-label{top:24px;color:#f4f1ea;border-color:#d4a84b}.study-caption{position:absolute;bottom:10px;left:12px;font-size:11px;max-width:16ch;color:var(--text-muted);line-height:1.3}.button{display:inline-block;padding:11px 18px;border:1px solid var(--accent-primary);background:var(--accent-primary);color:#231b19;text-decoration:none;box-shadow:4px 4px 0 #836327;font-variant:small-caps;letter-spacing:.045em;font-weight:700;transition:transform .25s var(--ease-kinetic),box-shadow .25s var(--ease-kinetic),background .25s}.button:hover{transform:translate(4px,4px);box-shadow:0 0 0 #836327;color:#231b19;background:#e4bc66}.button.secondary{background:var(--bg-surface);color:var(--text-primary);box-shadow:4px 4px 0 #17110f}.button.secondary:hover{box-shadow:none}.summary-strip{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--border-subtle);margin:10px 0 38px;background:var(--bg-surface)}.summary-strip>div{padding:17px 20px;border-right:1px solid var(--border-subtle)}.summary-strip>div:last-child{border-right:0}.summary-strip strong{display:block;color:var(--accent-secondary);font-variant:small-caps;font-size:15px;letter-spacing:.08em}.summary-strip span{font-size:16px;color:var(--text-muted)}.section{padding:30px 0;border-top:1px solid var(--border-subtle);margin-top:26px}.panel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.panel{padding:26px;background:var(--bg-surface);border:1px solid var(--border-subtle);transition:transform .35s var(--ease-kinetic),background .35s var(--ease-kinetic);box-shadow:none}.panel:hover{background:var(--bg-surface-hover)}a.panel{display:block;text-decoration:none;color:var(--text-primary)}a.panel:hover{transform:translateY(-4px)}.panel p:last-child{margin-bottom:0}.badge{display:inline-grid;place-items:center;width:34px;height:34px;border:1px solid var(--accent-primary);border-radius:50%;color:var(--accent-primary);font-size:14px;margin-bottom:15px}.split-panel{display:grid;grid-template-columns:1fr 1.2fr;border:1px solid var(--border-subtle);background:var(--bg-surface);margin:24px 0}.split-panel>div{padding:28px}.campaign-planning-photograph{height:100%;min-height:260px;aspect-ratio:4/3;object-fit:cover}.overlay-panel{position:relative;min-height:260px;display:flex;align-items:flex-end;border:1px solid var(--border-subtle)}.beauty-tools-banner{position:absolute;inset:0;height:100%;aspect-ratio:16/9;object-fit:cover}.overlay-copy{position:relative;max-width:78%;margin:20px;padding:20px;background:var(--bg-canvas);border:1px solid var(--border-subtle)}.guide-grid{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(230px,1fr);gap:40px;align-items:start}.reading{max-width:72ch;margin:0 auto;min-width:0}.reading h2{margin-top:37px}.reading h3{margin-top:28px}.reading>p{margin-bottom:22px}.guide-notes{padding:24px;border:1px solid var(--border-subtle);background:var(--bg-surface)}.guide-notes ul{padding-left:20px}.guide-notes a{font-size:16px}.page-intro{padding-bottom:16px}.page-intro h1{max-width:21ch}.risk{border-left:3px solid var(--accent-primary);background:var(--bg-surface);padding:20px 24px;margin:25px 0}.table-scroll{overflow-x:auto;margin:25px 0;border:1px solid var(--border-subtle)}table{border-collapse:collapse;width:100%;font-size:16px;min-width:580px}caption{text-align:left;padding:15px;background:var(--bg-surface);font-variant:small-caps;color:var(--accent-secondary)}th,td{text-align:left;vertical-align:top;padding:13px;border:1px solid var(--border-subtle)}th{background:var(--bg-surface)}dl{margin:0}dt{color:var(--accent-secondary);font-weight:700;margin-top:15px}dd{margin:3px 0 20px}details{border:1px solid var(--border-subtle);background:var(--bg-surface);margin:12px 0;padding:0 21px}summary{cursor:pointer;padding:18px 0;color:var(--text-primary);font-weight:700}details p{padding-bottom:9px}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.tab{background:var(--bg-surface);border:1px solid var(--border-subtle);color:var(--text-primary);padding:10px 18px}.tab[aria-selected=true]{color:#231b19;background:var(--accent-primary)}.tab-panel{padding:24px;border:1px solid var(--border-subtle);margin-bottom:24px}.tab-panel[hidden]{display:none}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.field{display:flex;flex-direction:column;gap:6px}.full{grid-column:1/-1}input,select,textarea{width:100%;border:1px solid var(--border-subtle);border-radius:0;background:#251d19;color:var(--text-primary);padding:12px}textarea{min-height:175px;resize:vertical}label{color:var(--accent-secondary)}.actions{display:flex;gap:17px;flex-wrap:wrap;margin:22px 0}.preview{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--bg-canvas);padding:20px;border:1px solid var(--border-subtle);font:16px/1.6 Charter,Cambria,Georgia,serif;min-height:100px}.status{min-height:1.6em;color:var(--accent-secondary)}.site-footer{border-top:1px solid var(--border-subtle);background:#1d1614;padding:38px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:30px}.site-footer p,.site-footer a{font-size:15px}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer strong{color:var(--accent-secondary)}.footer-base{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--border-subtle);padding-top:20px;margin-top:26px;font-size:14px;color:var(--text-muted)}.legal-links{display:flex;gap:17px;flex-wrap:wrap}.js-reveal .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease-kinetic),transform .7s var(--ease-kinetic)}.js-reveal .reveal-visible{opacity:1;transform:translateY(0)}.source-list{font-size:16px;padding-left:22px}.compact-media{display:grid;grid-template-columns:100px 1fr;gap:20px;align-items:center}.beauty-compact-photograph{width:100px;height:100px;aspect-ratio:1;object-fit:cover}
@media(min-width:1025px){.site-header{max-width:1400px;margin-left:auto;margin-right:auto;width:calc(100% - 40px)}.site-nav{gap:17px}}
@media(min-width:769px) and (max-width:1024px){.site-header{padding:15px;gap:15px;flex-wrap:wrap}.site-nav{width:100%;justify-content:space-between;gap:10px}.hero{gap:25px}.guide-grid{grid-template-columns:minmax(0,1.8fr) minmax(210px,1fr);gap:24px}.hero-study{min-height:350px}}
@media(max-width:768px){.site-header{margin:12px 12px 0;padding:14px;gap:8px}.brand{font-size:17px}.brand-mark{width:26px;height:26px}.menu-toggle{display:block;flex-shrink:0}.site-nav{display:none;position:absolute;left:0;right:0;top:calc(100% + 8px);z-index:10;padding:15px;background:var(--bg-surface);border:1px solid var(--border-subtle);flex-direction:column;align-items:stretch;gap:0}.site-nav.is-open{display:flex;animation:menuEnter .2s var(--ease-kinetic)}.site-nav a{padding:10px 12px;font-size:17px}.wrap{padding:0 22px}main{padding-top:38px!important}.hero{grid-template-columns:1fr;gap:32px}.hero-study{min-height:350px;max-width:520px;width:100%}.guide-grid{grid-template-columns:1fr}.guide-notes{order:2}.split-panel{grid-template-columns:1fr}.summary-strip>div{padding:14px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.form-grid{grid-template-columns:1fr}.panel{padding:22px}.overlay-copy{max-width:90%}}
@media(min-width:481px) and (max-width:768px){.hero-study{min-height:390px}.summary-strip{font-size:16px}}
@media(max-width:480px){.wrap{padding:0 16px}.brand{font-size:15px;gap:7px}.site-header{padding:11px}.summary-strip{grid-template-columns:1fr}.summary-strip>div{border-right:0;border-bottom:1px solid var(--border-subtle)}.summary-strip>div:last-child{border-bottom:0}.hero-study{min-height:310px}.serum-bottle{left:9%;width:75px;height:145px}.serum-bottle:before{left:17px;width:39px}.balm-jar{width:110px;height:82px}.hero-beauty-photograph{height:72%}.panel-grid{grid-template-columns:minmax(0,1fr)}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.actions .button{width:100%;text-align:center}.compact-media{grid-template-columns:74px 1fr}.beauty-compact-photograph{width:74px;height:74px}h1{font-size:2.55rem}.overlay-copy{margin:12px;padding:17px}.reading h2{font-size:1.8rem}}
@keyframes menuEnter{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.js-reveal .reveal{opacity:1;transform:none}}