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.brand small{font-size:10px;text-transform:none;letter-spacing:.15px}
@media(max-width:390px){.brand small{display:block;font-size:8px;max-width:none}}
.category-cyan{background-image:linear-gradient(0deg,rgba(3,16,27,.9),rgba(3,16,27,.08) 82%),url('/assets/technology.png');background-size:cover;background-position:35% center}
.category-violet{background:linear-gradient(0deg,rgba(3,16,27,.88),rgba(3,16,27,.10) 85%),url('/assets/physics-prism.png') center/cover}
.category-purple{background:linear-gradient(0deg,rgba(3,16,27,.88),rgba(3,16,27,.08) 85%),url('/assets/psychology-sleep.png') center/cover}
.article-media.visual-faraday,.article-media.visual-darwin,.article-media.visual-archimedes{position:relative;height:650px;background:#1c2c34}
.article-media.visual-faraday img,.article-media.visual-darwin img,.article-media.visual-archimedes img{position:absolute;inset:0;width:100%;height:100%;min-width:0;min-height:0;object-fit:contain;object-position:center}
.remember-box p{font-size:14px;line-height:1.65;margin:14px 0 0}
.remember-preview{height:auto;min-height:250px}
.remember-preview p{font-size:13px;line-height:1.55;margin:13px 0 17px}
@media(max-width:650px){.article-media.visual-faraday,.article-media.visual-darwin,.article-media.visual-archimedes{height:480px}}
.editorial-sources{margin:44px 0 70px}.editorial-sources h2{font-size:25px;margin:36px 0 16px}.editorial-sources ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.editorial-sources li{background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:16px 18px}.editorial-sources a{color:var(--blue);font-weight:750;text-decoration:underline;text-underline-offset:3px}.editorial-sources li p{font-size:14px;line-height:1.5;margin:7px 0 0}@media(max-width:650px){.editorial-sources ul{grid-template-columns:1fr}}

/* Clearer site identity and a deeper, calmer dark palette. */
.brand{min-width:185px}.brand strong{font-size:37px;letter-spacing:-2px}.brand small{font-size:11px;letter-spacing:.2px;margin-top:4px}
body.dark{--bg:#08121b;--surface:#10212d;--navy:#050e16;--soft-blue:#142e41;--line:#29404e}
.secondary-bar nav{gap:23px;white-space:nowrap}
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.article-media.visual-commons-einstein img,.article-media.visual-commons-tesla img,.article-media.visual-commons-galileo img,.article-media.visual-commons-newton-leibniz img,.article-media.visual-commons-teller img{object-fit:contain;object-position:center}
@media(max-width:1180px){.brand{min-width:155px}.brand strong{font-size:32px}.brand small{font-size:10px}}
@media(max-width:650px){.brand{min-width:0}.brand strong{font-size:29px}.brand small{display:block;font-size:9px;max-width:none}.remember-grid{grid-template-columns:1fr}.remember-page-head p{font-size:16px}.remember-item{padding:20px}.article-media.visual-commons-einstein,.article-media.visual-commons-tesla,.article-media.visual-commons-galileo,.article-media.visual-commons-newton-leibniz,.article-media.visual-commons-teller{height:450px}}

.video-embed{width:100%;aspect-ratio:16/9;background:#07131d;border-radius:6px;overflow:hidden}.video-embed iframe{display:block;width:100%;height:100%;border:0}
.article-video{display:block;width:100%;height:auto;max-height:490px;background:#07131d;border-radius:6px}

.simulation-section{margin-top:38px}.simulation-embed{width:100%;aspect-ratio:4/3;min-height:380px;background:#07131d;border-radius:6px;overflow:hidden}.simulation-embed iframe{display:block;width:100%;height:100%;border:0}.simulation-credit{font-size:13px!important;line-height:1.5!important}.simulation-credit a{color:var(--blue);text-decoration:underline;text-underline-offset:2px}
@media(max-width:650px){.simulation-embed{min-height:420px}}

.site-header .brand{min-width:210px}.site-header .brand strong{font-size:44px;letter-spacing:-2.4px}.site-header .brand small{font-size:13px;letter-spacing:.25px;margin-top:5px}
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@media(max-width:900px){.site-header .brand{min-width:168px}.site-header .brand strong{font-size:37px}.site-header .brand small{font-size:11px}.school-mark{width:70px;height:66px}}
@media(max-width:650px){.site-header .brand{min-width:130px}.site-header .brand strong{font-size:33px}.site-header .brand small{display:block;font-size:10px;max-width:none}.school-mark{width:53px;height:61px}}
@media(max-width:390px){.site-header .brand{min-width:112px}.site-header .brand strong{font-size:30px}.site-header .brand small{display:block;font-size:8.5px}.school-mark{width:44px;height:61px}}

/* DIY section */
.tag-amber{background:#b66a13}
.category-grid{grid-template-columns:repeat(7,minmax(0,1fr))}
.category-amber{background:linear-gradient(145deg,rgba(76,37,5,.2),rgba(38,22,8,.9)),url('/assets/diy/packed-cooler.jpg') center/cover}
@media(max-width:1180px){.category-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:650px){.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.source-list li{font-size:15px}.remember-source{color:var(--muted);font-size:13px;font-weight:700}
.source-list a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.source-list a:hover{color:#005eaa}
.remember-source a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.glossary-trigger{display:inline;border:0;background:none;padding:0;color:#087bcc;font:inherit;font-weight:650;text-align:inherit;text-decoration:underline;text-decoration-color:rgba(8,123,204,.45);text-decoration-style:dotted;text-underline-offset:3px}.glossary-trigger:hover{color:#005eaa;text-decoration-style:solid}body.dark .glossary-trigger{color:#83d4ff}body.dark .glossary-trigger:hover{color:#b2e7ff}
.glossary-dialog{width:min(620px,calc(100vw - 30px));max-height:min(80vh,620px);padding:28px;border:1px solid var(--line);border-radius:15px;background:var(--surface);color:var(--ink);box-shadow:0 30px 90px rgba(0,0,0,.35);overflow:auto}.glossary-dialog::backdrop{background:rgba(4,17,29,.72)}.glossary-close{position:absolute;top:9px;right:10px;width:38px;height:38px;border:0;border-radius:8px;background:transparent;color:var(--ink);font-size:29px;line-height:1}.glossary-close:hover{background:var(--soft-blue)}.glossary-content{display:grid;grid-template-columns:170px minmax(0,1fr);gap:22px;align-items:start;padding-top:15px}.glossary-content figure{margin:0}.glossary-image{width:100%;height:165px;object-fit:contain;background:var(--bg);border:1px solid var(--line);border-radius:9px}.glossary-credit{font-size:11px;line-height:1.35;color:var(--muted);margin-top:7px}.glossary-content h2{font-size:24px;line-height:1.2;margin:0 26px 12px 0}.glossary-description{font-size:15px;line-height:1.58;margin:0}@media(max-width:570px){.glossary-content{grid-template-columns:1fr}.glossary-image{height:150px}.glossary-dialog{padding:20px}}
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.astronomy-serial-page .serial-screen-reader-title{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
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.astronomy-serial-page .serial-part{display:grid;grid-template-columns:32px minmax(0,1fr);gap:12px;align-items:start;padding:16px}
.astronomy-serial-page .serial-part-cover{grid-column:1/-1;width:100%;height:155px}
.astronomy-serial-page .serial-part-cover img{width:100%;height:calc(100% + 15px);object-fit:contain;object-position:center top}
.astronomy-serial-page .serial-part>div:nth-of-type(2){grid-column:2;min-width:0}
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  .physics-node{text-align:left;padding:0 0 24px;min-height:83px}
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@media(max-width:620px){
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.hero-figure:has(.visual-noether-symmetry-energy){max-width:560px}
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.article-media.visual-diy-ufo-boat{height:auto;min-height:0;background:#112738}
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/* Two rows in the rubric strip: navigation above the editorial credit. */
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.secondary-bar .secondary-links nav{height:46px;width:max-content;min-width:min(100% - 48px,1360px);gap:clamp(14px,1.4vw,21px);font-size:15px}
.site-collaboration{margin-top:0;margin-bottom:0;font-size:13px;line-height:1.45;color:var(--muted);white-space:normal}
@media(max-width:1180px){.primary-nav a{font-size:14px}}
@media(max-width:900px){.secondary-bar .secondary-links nav{min-width:100%;height:44px;font-size:14px}}
@media(max-width:650px){.secondary-bar .secondary-links nav{height:42px;font-size:14px;gap:20px}.site-collaboration{font-size:12px;line-height:1.45}}

/* psychology-20260927 full figures */
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@media(min-width:901px){.header-inner{gap:18px}.header-actions{gap:8px}}
@media(min-width:391px) and (max-width:440px){.site-header .brand{min-width:112px}.school-mark{width:44px}}


/* EDUKOS is five percent shorter than the school logo. */
.edukos-mark{height:72.2px}
@media(max-width:900px){.edukos-mark{height:62.7px}}
@media(max-width:650px){.edukos-mark{height:57.95px}}


/* Both partner logos retain their original white backgrounds and share dimensions. */
.school-mark{height:72.2px;border-radius:3px;background:#fff}
.school-mark img{filter:none;mix-blend-mode:normal}
.school-mark:not(.edukos-mark) img{filter:grayscale(1) contrast(1.08)}
@media(max-width:900px){.school-mark{height:62.7px}}
@media(max-width:650px){.school-mark{height:57.95px}}


.article-media.visual-moon-name-20260927{height:auto;min-height:0;background:#071017}
.article-media.visual-moon-name-20260927 img{width:100%;height:auto;max-height:640px;object-fit:contain}

/* Rotating headlines keep the whole subject visible beside the copy. */
.hero-main.daily-feature{height:auto;min-height:460px;background:#071017;display:flex;align-items:center}
.home-page .hero-grid{height:auto;min-height:460px;align-items:stretch}
.hero-main.daily-feature>img{position:absolute;top:0;left:auto;right:0;width:50%;height:100%;object-fit:contain;object-position:center}
.daily-feature .hero-overlay{background:linear-gradient(90deg,#071017 0%,#071017 44%,rgba(7,16,23,.18) 54%,transparent 65%)}
.daily-feature .hero-content{position:relative;width:53%;padding:30px 24px}
.daily-feature .hero-content h1{font-size:clamp(26px,2.7vw,38px);line-height:1.13;letter-spacing:-.8px}
.daily-feature .hero-content p{font-size:15px}
.daily-feature .hero-bottom{flex-wrap:wrap;gap:12px}
.home-facts{min-width:0}
@media(max-width:650px){
  .hero-main.daily-feature{min-height:0;display:block;padding-top:250px}
  .hero-main.daily-feature>img{width:100%;height:250px;top:0;object-position:center}
  .daily-feature .hero-overlay{background:none}
  .daily-feature .hero-content{width:100%;padding:22px}
  .daily-feature .hero-content h1{font-size:29px}
}
.article-media.visual-3d-printing{height:auto;min-height:0;background:#e8eef2}
.article-media.visual-3d-printing img{display:block;width:100%;height:auto;max-height:620px;object-fit:contain;object-position:center}
.story-card.full-subject .story-visual.visual-3d-printing{background:#e8eef2}
.hero-main.daily-feature[data-daily-article="how-3d-printers-work"]>img{object-fit:contain;background:#e8eef2}
.article-comparison{overflow-x:auto;margin:22px 0 32px;border:1px solid var(--line);border-radius:8px}
.article-comparison table{width:100%;border-collapse:collapse;min-width:560px;font-size:13px;line-height:1.45}
.article-comparison th,.article-comparison td{text-align:left;vertical-align:top;padding:11px 12px;border-bottom:1px solid var(--line)}
.article-comparison th{background:var(--soft-blue);color:var(--ink);font-weight:750}
.article-comparison tbody tr:last-child td{border-bottom:0}