/* Scoped, responsive chapter filmstrip. Thumbnails retain the complete frame. */
.form-page .measurement-film-roll{margin:0 0 24px;border:1px solid #d5e2e3;border-radius:12px;background:#fff;overflow:hidden;padding:0;min-width:0}
.filmstrip-toggle{display:flex;align-items:center;gap:12px;width:100%;padding:17px 20px;border:0;background:#fff;text-align:left;color:#18343b;font:inherit;cursor:pointer}
.filmstrip-toggle>svg{width:28px;height:28px;flex:0 0 28px;color:#159ac8}
.filmstrip-toggle>span:first-of-type{font-size:16px;font-weight:550;line-height:1.5}
.filmstrip-subtitle{display:block;font-size:13px;font-weight:400;color:#61767d}
.filmstrip-chevron{margin-left:auto;font-size:23px;color:#159ac8;transition:transform .2s}
.filmstrip-toggle[aria-expanded=true] .filmstrip-chevron{transform:rotate(180deg)}
.filmstrip-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:0 18px 12px}
.filmstrip-groups{display:flex;flex-wrap:wrap;gap:5px}
.filmstrip-groups button{font:inherit;font-size:12px;line-height:1.4;color:#526b73;background:#f2f6f5;border:1px solid transparent;border-radius:20px;padding:7px 11px;min-height:34px;cursor:pointer}
.filmstrip-groups button[aria-pressed=true]{background:linear-gradient(110deg,#dfedd6,#edf1ed 50%,#d8ebf2);border-color:#b6d6d8;color:#18343b}
.filmstrip-arrows{display:flex;gap:6px;flex-shrink:0}
.filmstrip-arrows button{border:1px solid #d0dfe2;border-radius:50%;width:34px;height:34px;min-height:34px;padding:0;color:#148db7;background:#fff;font-size:19px;cursor:pointer}
.filmstrip-track{display:flex;gap:8px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x proximity;padding:0 18px 14px;scrollbar-width:thin;scrollbar-color:#b4cbd0 transparent;min-width:0}
.filmstrip-chapter{flex:0 0 150px;width:150px;scroll-snap-align:start;text-align:left;border:0;padding:0;background:transparent;font:inherit;color:#29464f;cursor:pointer;min-width:0;border-radius:7px}
.filmstrip-chapter[hidden]{display:none}
.filmstrip-frame{display:block;position:relative;aspect-ratio:16/9;background:#ecf2ef;border:2px solid transparent;border-radius:7px;overflow:hidden;transition:border-color .15s}
.filmstrip-frame img{display:block;width:100%;height:100%;object-fit:contain}
.filmstrip-time{position:absolute;bottom:6px;right:6px;background:#19383edb;color:#fff;border-radius:3px;padding:2px 5px;font-size:11px;line-height:1.3;font-variant-numeric:tabular-nums}
.filmstrip-title{display:block;font-size:12px;line-height:1.45;font-weight:500;padding:7px 2px 2px;min-height:42px}
.filmstrip-chapter:hover .filmstrip-frame,.filmstrip-chapter[aria-current=true] .filmstrip-frame{border-color:#24a4d7}
.filmstrip-chapter[aria-current=true] .filmstrip-title{color:#087ea7}
.filmstrip-progress{position:absolute;bottom:0;left:0;height:3px;width:var(--chapter-progress,0%);background:#80c834}
.filmstrip-toggle:focus-visible,.filmstrip-chapter:focus-visible,.filmstrip-toolbar button:focus-visible{outline:3px solid #26a2d3;outline-offset:-3px}
.filmstrip-content{border-top:1px solid #d7e4e6;padding-bottom:14px}
.filmstrip-content[hidden]{display:none}
.filmstrip-content>p,.filmstrip-content .measurement-film-transcript{margin:14px 18px}
.form-page .measurement-film-roll video{width:100%;height:auto;aspect-ratio:16/9;background:#17363c}
.filmstrip-content .film-part-picker{display:flex;gap:8px;flex-wrap:wrap;padding:14px 18px}
.filmstrip-content .film-part-picker button{font:inherit;font-size:13px;padding:9px 12px;min-height:40px;background:#f1f6f4;border:1px solid #d1e0df;border-radius:7px;color:#21404a;cursor:pointer}
@media(max-width:600px){.filmstrip-toggle{padding:15px}.filmstrip-toolbar{padding:0 12px 12px;align-items:flex-end}.filmstrip-groups{gap:4px}.filmstrip-groups button{font-size:11px;padding:7px 9px}.filmstrip-arrows{gap:4px}.filmstrip-arrows button{width:30px;height:30px;min-height:30px}.filmstrip-track{padding-inline:12px}.filmstrip-chapter{flex-basis:138px;width:138px}}
@media(prefers-reduced-motion:reduce){.filmstrip-chevron,.filmstrip-frame{transition:none}.filmstrip-track{scroll-behavior:auto}}