/* The introductory film and the short chapter illustration share native controls. */
.intro-film{padding-top:clamp(52px,7vw,100px);padding-bottom:clamp(52px,7vw,100px)}
.intro-film-heading{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,6vw,88px);align-items:end;margin-bottom:32px}
.intro-film-heading .section-title{margin-bottom:0}
.intro-film-copy{font-size:clamp(17px,1.5vw,20px);line-height:1.55;max-width:52ch}
.intro-film-copy p{margin:0 0 14px}.intro-film-copy .intro-film-meta{font-size:13px;letter-spacing:.025em;color:#45534e;margin:0}
.intro-film-disclosure{border:1px solid #c5d0c8;background:#eef2ee;box-shadow:0 18px 48px #193c2f0d;overflow:hidden;border-radius:4px}
.intro-film-disclosure summary,.framework-case-film summary{cursor:pointer;list-style:none;font-size:17px;font-weight:600;padding:22px;display:flex;justify-content:space-between;gap:20px;align-items:center}
.intro-film-disclosure summary::-webkit-details-marker,.framework-case-film summary::-webkit-details-marker{display:none}
.intro-film-disclosure summary small{display:block;font-size:13px;font-weight:400;color:#45534e;margin-top:5px}
.intro-film-disclosure summary b{font-size:26px;font-weight:400;color:#08796f}.intro-film-disclosure[open] summary b{transform:rotate(45deg)}
video[data-film]{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#eef2ee}
.intro-film-note{font-size:14px;line-height:1.5;color:#45534e;margin-top:16px;max-width:70ch}.intro-film-note a{color:inherit;text-underline-offset:4px}
.framework-case-film{border:1px solid #c5d0c8;margin-top:22px;border-radius:3px;overflow:hidden;background:#eef2ee}
.framework-case-film summary{font-size:16px;flex-wrap:wrap}.framework-case-film summary span{font-size:12px;font-weight:400;color:#45534e}
@media(min-width:701px){.intro-film-disclosure[open]>summary{display:none}}
@media(max-width:700px){.intro-film-heading{grid-template-columns:1fr;gap:20px;margin-bottom:24px}.intro-film-copy{font-size:17px}.intro-film-disclosure summary{padding:20px}.intro-film-note{font-size:13px}}