/* Behind the Frame: full photographs, personal reflections and practical comparisons. */
.btf-intro{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:start;padding-block:45px 65px}.btf-intro h1{font-size:clamp(54px,7vw,94px)}.btf-intro .lead{margin-bottom:20px}.btf-count{font-size:12px;color:var(--muted);padding-top:12px}.btf-library{padding-bottom:70px}.btf-filters{display:flex;flex-wrap:wrap;gap:10px;border-block:1px solid var(--line);padding:22px 0}.btf-filters a{display:flex;align-items:center;gap:10px;padding:8px 15px;border:1px solid var(--line);border-radius:30px;font-size:13px;min-height:44px}.btf-filters a[aria-current]{background:var(--green);border-color:var(--green);color:var(--white)}.btf-filters a:hover{outline:1px solid var(--green)}.btf-filters span{font-size:11px;opacity:.8}.btf-results{display:flex;justify-content:space-between;gap:20px;padding:23px 0;font-size:12px;color:var(--muted);scroll-margin-top:20px}.btf-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px 24px}.btf-card{border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column}.btf-card-photo{display:grid;place-items:center;background:#161c18;min-width:0;height:300px;padding:12px}.btf-card-photo picture{display:contents}.btf-card-photo img{width:100%;height:276px;object-fit:contain}.btf-card-copy{padding:25px;display:flex;flex:1;flex-direction:column}.btf-card .eyebrow{font-size:10px;margin-bottom:13px;letter-spacing:1.4px}.btf-card .eyebrow span{color:var(--muted)}.btf-card h2{font-size:31px;letter-spacing:-.6px;line-height:1.15}.btf-card p:not(.eyebrow){margin:16px 0 24px;font-size:14px}.btf-card .text-link{margin-top:auto;align-self:flex-start}.btf-article-heading{max-width:900px;margin:40px auto;text-align:center}.btf-article-heading h1{font-size:clamp(44px,5.6vw,76px);line-height:1.08;margin:20px 0}.btf-article-heading .lead{max-width:770px;margin:0 auto}.btf-byline{font-size:12px;color:var(--muted);margin-top:22px}.btf-byline a{text-decoration:underline;text-underline-offset:3px}.btf-main-photo .photo-viewer{display:block;background:#161c18;border-radius:0;padding:20px;width:100%;aspect-ratio:auto;min-height:0}.btf-main-photo .photo-viewer picture{display:contents}.btf-main-photo .photo-viewer img{width:100%;height:auto;max-height:78vh;min-height:0;object-fit:contain;aspect-ratio:auto}.btf-main-photo figcaption{font-size:12px;color:var(--muted);margin-top:10px}.btf-tags{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.btf-tags span{font-size:12px;padding:4px 10px;background:var(--pale);border-radius:4px;overflow-wrap:anywhere}.btf-jump{display:flex;gap:12px 28px;flex-wrap:wrap;border-block:1px solid var(--line);padding:18px 0;font-size:12px}.btf-jump a:hover{text-decoration:underline}.btf-reading{display:grid;grid-template-columns:.85fr 1.4fr;gap:70px;padding:65px 0;border-bottom:1px solid var(--line);scroll-margin-top:30px}.btf-reading h2{font-size:clamp(32px,3.7vw,48px)}.btf-prose{font-size:16px}.btf-citation{color:var(--green);text-decoration:underline;font-size:.82em;font-weight:600;white-space:nowrap}.btf-settings{border:1px solid var(--line);background:var(--white);padding:18px 22px;margin-bottom:25px}.btf-settings p{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}.btf-settings ul{display:flex;gap:8px 18px;flex-wrap:wrap;list-style:none;padding:0;margin:8px 0 0;font-size:14px;font-weight:600}.btf-review-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:55px 0}.btf-review{border:1px solid var(--line);padding:32px;background:var(--white);scroll-margin-top:30px}.btf-review h2{font-family:var(--sans);font-size:24px;letter-spacing:-.5px;line-height:1.3;display:flex;gap:14px;align-items:flex-start}.btf-review h2 i{font-size:23px;margin-top:4px;flex-shrink:0}.btf-keep{border-top:4px solid #287a4a}.btf-keep h2{color:#237042}.btf-explore{border-top:4px solid var(--accent)}.btf-explore h2 i{color:var(--accent)}.btf-review>div{margin-top:28px}.btf-review h3{font-family:var(--sans);font-size:16px;font-weight:600;line-height:1.4;letter-spacing:0;margin-bottom:9px}.btf-review p{font-size:15px}.btf-experiment{padding:40px;background:var(--pale)}.btf-experiment h2{font-size:38px;margin-bottom:22px}.btf-experiment>p:last-child{max-width:840px;font-size:16px}.btf-question{max-width:780px;margin:60px auto;text-align:center}.btf-question>p:not(.eyebrow){font-family:var(--serif);font-size:30px;line-height:1.4;margin-bottom:24px}.btf-sources{border-top:1px solid var(--line);padding:30px 0;font-size:12px;color:var(--muted)}.btf-sources h2{font-family:var(--sans);font-size:15px;font-weight:600;letter-spacing:0;margin-bottom:14px}.btf-sources a{text-decoration:underline;text-underline-offset:3px}.btf-sources li{margin:8px 0;scroll-margin-top:25px}.btf-next{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;padding:25px 0 60px;border-top:1px solid var(--line)}.btf-feature{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:34px;border:1px solid var(--line);background:var(--pale);margin-block:40px}.btf-feature h2{font-size:36px;margin-bottom:15px}.btf-feature p:not(.eyebrow){max-width:650px}.btf-feature .button{flex-shrink:0}.btf-feature .eyebrow{margin-bottom:12px}
@media(max-width:1050px){.btf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.btf-intro{gap:35px}.btf-reading{gap:35px}.btf-review{padding:24px}.btf-feature{flex-direction:column;align-items:flex-start}}
@media(max-width:700px){.btf-intro{grid-template-columns:1fr;padding-block:25px 35px;gap:25px}.btf-intro h1{font-size:58px}.btf-intro .lead{font-size:23px}.btf-filters{gap:8px}.btf-filters a{padding:7px 12px;font-size:12px}.btf-results{display:block}.btf-results span{display:block;margin-top:5px}.btf-grid{grid-template-columns:1fr;gap:22px}.btf-card-photo{height:320px}.btf-card-photo img{height:296px}.btf-article-heading{text-align:left;margin:25px auto}.btf-article-heading h1{letter-spacing:-1.4px}.btf-article-heading .lead{font-size:22px}.btf-main-photo .photo-viewer{padding:10px}.btf-main-photo .photo-viewer img{max-height:72vh}.btf-jump{gap:12px 20px}.btf-reading{grid-template-columns:1fr;gap:24px;padding:38px 0}.btf-review-grid{grid-template-columns:1fr;gap:20px;margin:35px 0}.btf-review{padding:23px}.btf-review h2{font-size:22px}.btf-experiment{padding:25px}.btf-question{margin-block:40px}.btf-question>p:not(.eyebrow){font-size:26px}.btf-feature{padding:25px;gap:23px}.btf-feature .button{width:100%;gap:15px}.btf-next{padding-bottom:35px}}
.btf-pagination{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:9px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}.btf-pagination a{display:flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px 13px;border:1px solid var(--line);border-radius:4px;font-size:13px}.btf-pagination a[aria-current]{background:var(--green);color:var(--white);border-color:var(--green)}.btf-pagination a:hover{outline:1px solid var(--green)}.btf-pagination .btf-page-direction{padding-inline:17px}
@media(prefers-reduced-motion:reduce){.btf-card *{transition:none}}