/*
 * "Mes vidéos" pages (course, access ended, lost link). Static file served by the plugin, no theme,
 * no external request: fonts and image live in this folder. Everything is scoped under .optm-videos.
 * House style of optimike.net: paper, ink, copper, graphite workbench (DESIGN.md Optimike).
 *
 * Course notes contract (HTML fragment sanitised by the plugin): h3, h4, p, ul, ol, li, strong, em,
 * code, pre, blockquote, a, hr, details > summary, and callouts as
 *   <aside class="optm-note-retenir">, <aside class="optm-note-action">, <aside class="optm-note-ressources">
 * (any class containing "retenir", "action" or "ressource" gets the same look). A callout starts
 * with its own title (<h4> or <p><strong>).
 * Agent callout (0.3.1): <aside class="optm-note-agent"> with <h4>Pour approfondir avec votre agent</h4>,
 * the note title in <code> (optionally inside <a href="obsidian://elysia-os?open=…">), then each request
 * to copy in a <blockquote>: videos-page.js adds a "Copier" button after it (no <button> in the notes).
 * Images (0.3.2): <figure><img src="{{ASSET}}/<file>.webp" alt loading width height><figcaption>…</figcaption></figure>,
 * files of assets/course/ only.
 */

@font-face{font-family:"Optm Newsreader";src:url("fonts/newsreader-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Optm Newsreader Logo";src:url("fonts/newsreader-700-logo.woff2") format("woff2");font-weight:700;font-style:normal;font-display:block}
@font-face{font-family:"Optm DM Sans";src:url("fonts/dm-sans-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Optm DM Sans";src:url("fonts/dm-sans-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Optm JetBrains Mono";src:url("fonts/jetbrains-mono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

/* ---------- Tokens ----------
 * Source of truth: Optimike DESIGN.md (optm-wordpress-sites, sites/optimike/DESIGN.md, front matter);
 * pattern « Espace de cours » in sites/optimike/DESIGN_PATTERNS.md. This page is rendered outside the
 * theme (no wp_head), so the values are carried here, mapped one to one to the canon:
 *   light (Papier)            --o-bg background · --o-surface surface · --o-surface-2 surface-container
 *                             --o-line outline · --o-line-strong outline-strong · --o-ink on-background
 *                             --o-muted muted · --o-accent secondary (cuivre) · --o-accent-text cuivre_deep
 *                             --o-success success · --o-info tertiary · --o-button-* primary/on-primary
 *   dark (Établi, workbench)  --o-bg workbench-background · --o-surface workbench-surface
 *                             --o-surface-2 workbench-panel · --o-line workbench-outline · --o-ink on-workbench
 *                             --o-accent / --o-accent-text workbench-accent · --o-success / --o-info the theme glows
 * Local deviations, kept for WCAG AA: --o-success-text (light, #4A7C59 is 4.46:1 on papier) and
 * --o-muted in dark (#A8A29C: long reading needs more than the workbench-muted floor #8A8580);
 * --o-control (form field border, 3:1 minimum) has no canon token.
 * Dark mode is an exception to DESIGN.md (« pas de sombre global ») decided for this viewing space only:
 * it follows the system setting or the reader's choice, and uses the workbench palette.
 */
.optm-videos{
  --o-bg:#F7F5F0;--o-surface:#EFEDE8;--o-surface-2:#E8E4DE;--o-line:#E0DCD4;--o-line-strong:#D0CCC4;
  --o-ink:#1A1A1A;--o-muted:#6B6560;--o-control:#857D75;--o-accent:#B87333;--o-accent-text:#985C26;
  --o-success:#4A7C59;--o-success-text:#3F6E4D;--o-info:#2E5A7C;--o-button-bg:#1A1A1A;--o-button-ink:#F7F5F0;
  --o-stage:#131316;--o-stage-line:#2E2E34;--o-on-stage:#E8E4DF;--o-on-stage-muted:#A8A29C;
  --o-shadow:0 1px 2px rgba(26,26,26,.05),0 12px 32px -18px rgba(26,26,26,.28);
  --o-serif:"Optm Newsreader",Newsreader,Georgia,"Times New Roman",serif;
  --o-sans:"Optm DM Sans","DM Sans",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --o-mono:"Optm JetBrains Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
  --o-ease:cubic-bezier(.2,.7,.2,1);--o-fast:160ms;--o-medium:260ms;
  --o-wrap:1240px;--o-gutter:clamp(20px,4vw,40px);
  color-scheme:light;
}
:root[data-theme="dark"] .optm-videos{
    --o-bg:#131316;--o-surface:#1C1C20;--o-surface-2:#242428;--o-line:#2E2E34;--o-line-strong:#3E3E46;
    --o-ink:#E8E4DF;--o-muted:#A8A29C;--o-control:#77726D;--o-accent:#D4A574;--o-accent-text:#D4A574;
    --o-success:#6B9E7A;--o-success-text:#6B9E7A;--o-info:#6B9EBF;--o-button-bg:#E8E4DF;--o-button-ink:#131316;
    --o-stage:#0B0B0D;--o-stage-line:#2E2E34;--o-shadow:0 1px 2px rgba(0,0,0,.4),0 18px 40px -22px rgba(0,0,0,.8);color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .optm-videos{
    --o-bg:#131316;--o-surface:#1C1C20;--o-surface-2:#242428;--o-line:#2E2E34;--o-line-strong:#3E3E46;
    --o-ink:#E8E4DF;--o-muted:#A8A29C;--o-control:#77726D;--o-accent:#D4A574;--o-accent-text:#D4A574;
    --o-success:#6B9E7A;--o-success-text:#6B9E7A;--o-info:#6B9EBF;--o-button-bg:#E8E4DF;--o-button-ink:#131316;
    --o-stage:#0B0B0D;--o-stage-line:#2E2E34;--o-shadow:0 1px 2px rgba(0,0,0,.4),0 18px 40px -22px rgba(0,0,0,.8);color-scheme:dark;
  }
}

/* ---------- Base ---------- */
.optm-videos{margin:0;background:var(--o-bg);color:var(--o-ink);font:400 16px/1.6 var(--o-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh;display:flex;flex-direction:column}
.optm-videos *,.optm-videos *::before,.optm-videos *::after{box-sizing:border-box}
:where(.optm-videos) a{color:inherit;text-decoration-color:var(--o-accent);text-decoration-thickness:1px;text-underline-offset:3px}
:where(.optm-videos) a:hover{text-decoration-thickness:2px}
.optm-videos :focus-visible{outline:2px solid var(--o-accent-text);outline-offset:3px;border-radius:2px}
:where(.optm-videos) :where(h1,h2,h3,h4){margin:0;font-weight:500;color:var(--o-ink)}
:where(.optm-videos) :where(p){margin:0}
:where(.optm-videos) :where(button){font:inherit;color:inherit}
.optm-v-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.optm-v-skip{position:absolute;left:12px;top:-60px;z-index:20;padding:10px 16px;background:var(--o-button-bg);color:var(--o-button-ink)!important;text-decoration:none;font-weight:600;border-radius:2px}
.optm-v-skip:focus{top:12px}
.optm-v-wrap{width:100%;max-width:var(--o-wrap);margin:0 auto;padding:0 var(--o-gutter)}
.optm-v-label{font:500 12px/1.35 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-accent-text)}

/* ---------- Top bar ---------- */
.optm-v-topbar{border-bottom:1px solid var(--o-line);background:var(--o-bg)}
.optm-v-topbar .optm-v-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.optm-v-brand{display:flex;align-items:center;gap:14px;min-width:0}
.optm-v-logo{font:700 23px/1 "Optm Newsreader Logo",var(--o-serif);letter-spacing:-.01em;color:var(--o-ink);white-space:nowrap}
.optm-v-logo span{color:var(--o-accent)}
.optm-v-brand__product{padding-left:14px;border-left:1px solid var(--o-line-strong);font:500 12px/1.35 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* Track tabs (0.3.3): « Premier Vol » · « Carnets de vol », in place of the product name on the course page. */
.optm-v-tracks{display:flex;align-items:stretch;gap:2px;min-width:0;padding-left:10px;border-left:1px solid var(--o-line-strong)}
.optm-v-tracks__tab{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 10px;border-radius:2px;font:500 12px/1.2 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-muted);text-decoration:none!important;white-space:nowrap}
.optm-v-tracks__tab:hover{color:var(--o-ink);background:var(--o-surface)}
.optm-v-tracks__tab[aria-current="page"]{color:var(--o-ink)}
.optm-v-tracks__tab[aria-current="page"]::after{content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;background:var(--o-accent)}
.optm-v-ready .optm-v-track:not(.is-current-track){display:none}
.optm-v-tools{display:flex;align-items:center;gap:6px}
.optm-v-tools a{font-size:15px;text-decoration:none;padding:10px 12px;border-radius:2px}
.optm-v-tools a:hover{text-decoration:underline}
.optm-v-theme{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--o-line-strong);border-radius:2px;background:transparent;cursor:pointer}
.optm-v-theme[hidden]{display:none}
.optm-v-theme:hover{background:var(--o-surface)}
.optm-v-theme svg{width:18px;height:18px}
.optm-v-theme .is-sun{display:none}
:root[data-theme="dark"] .optm-v-theme .is-sun{display:block}
:root[data-theme="dark"] .optm-v-theme .is-moon{display:none}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .optm-v-theme .is-sun{display:block}
  :root:not([data-theme="light"]) .optm-v-theme .is-moon{display:none}
}

/* ---------- Course header ---------- */
.optm-v-main{flex:1 0 auto}
.optm-v-course{padding:clamp(32px,5vw,56px) 0 clamp(28px,4vw,40px);border-bottom:1px solid var(--o-line)}
.optm-v-course .optm-v-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,380px);gap:clamp(24px,5vw,72px);align-items:end}
.optm-v-course h1{margin-top:12px;font:500 clamp(44px,6vw,68px)/1.02 var(--o-serif);letter-spacing:-.03em}
.optm-v-course__meta{display:flex;flex-wrap:wrap;margin-top:14px;font:500 13px/1.6 var(--o-mono);letter-spacing:.04em;color:var(--o-ink)}
.optm-v-course__meta span{white-space:nowrap}
.optm-v-course__meta span + span::before{content:"·";margin:0 .7em;color:var(--o-muted)}
.optm-videos :where(h1,h2,.optm-v-poster__title,.optm-v-step__title){text-wrap:balance}
.optm-videos :where(p,li){text-wrap:pretty}
.optm-v-course__intro{margin-top:10px;max-width:60ch;font-size:17px;line-height:1.6;color:var(--o-muted)}
.optm-v-resume{padding:22px 24px 24px;background:var(--o-surface);border:1px solid var(--o-line);border-radius:2px}
.optm-v-resume__count{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:15px}
.optm-v-resume__count strong{font:500 28px/1 var(--o-serif);letter-spacing:-.01em}
.optm-v-resume__device{font-size:13px;color:var(--o-muted)}
.optm-v-bar{position:relative;height:4px;margin:14px 0 18px;background:var(--o-line);border-radius:4px;overflow:hidden}
.optm-v-bar span{position:absolute;inset:0 auto 0 0;width:calc(var(--p,0) * 1%);background:var(--o-accent);border-radius:4px;transition:width var(--o-medium) var(--o-ease)}
.optm-v-button{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;padding:14px 20px;background:var(--o-button-bg);color:var(--o-button-ink)!important;text-decoration:none!important;font-weight:600;font-size:16px;line-height:1.3;border-radius:2px;border:0;cursor:pointer}
.optm-v-button:hover{opacity:.92}
.optm-v-button__arrow{flex:none;font-family:var(--o-mono)}

/* ---------- Layout: lesson + table of contents ---------- */
.optm-v-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:clamp(32px,4.5vw,64px);align-items:start;padding-top:clamp(28px,4vw,44px);padding-bottom:clamp(48px,7vw,96px)}
.optm-v-lessons{min-width:0}
.optm-v-lesson + .optm-v-lesson{margin-top:72px;padding-top:56px;border-top:1px solid var(--o-line)}
.optm-v-ready .optm-v-lesson:not(.is-current){display:none}
.optm-v-ready .optm-v-lesson + .optm-v-lesson{margin-top:0;padding-top:0;border-top:0}
.optm-v-lesson{scroll-margin-top:16px}
.optm-v-lesson__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}
.optm-v-lesson__head h2{margin-top:8px;font:500 clamp(28px,3.2vw,38px)/1.12 var(--o-serif);letter-spacing:-.02em;outline:none}
.optm-v-lesson__label{display:flex;flex-wrap:wrap;align-items:baseline;row-gap:4px}
.optm-v-lesson__label > span + span::before{content:"·";margin:0 .7em;color:var(--o-muted)}
.optm-v-lesson__of{color:var(--o-muted)}
.optm-v-lesson__part{color:var(--o-ink)}
.optm-v-lesson__dur{color:var(--o-muted)}
.optm-v-lesson__kind{color:var(--o-ink)}
.optm-v-anchor{display:block;height:0}
/* Written lesson: no player, the text is the lesson; previous / next come after it. */
.optm-v-notes.optm-v-notes--lesson{margin-top:4px;padding-top:24px}
.optm-v-lesson--text .optm-v-steps{margin-top:clamp(32px,4vw,48px)}
.optm-v-lesson__toc{display:none;margin:-6px 0 14px;font-size:14px;color:var(--o-muted)!important}
.optm-v-seenmark{display:none;flex:none;align-items:center;gap:6px;padding:6px 10px;border:1px solid currentColor;border-radius:2px;color:var(--o-success-text);font:500 12px/1 var(--o-mono);letter-spacing:.08em;text-transform:uppercase}
.optm-v-lesson.is-seen .optm-v-seenmark{display:inline-flex}

/* Player stage: always graphite, in both themes (the workbench is where the work happens). */
.optm-v-stage{position:relative;aspect-ratio:16/9;background:var(--o-stage);border:1px solid var(--o-stage-line);border-radius:4px;overflow:hidden;box-shadow:var(--o-shadow);color:var(--o-on-stage)}
.optm-v-stage iframe{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:2;background:transparent}
.optm-v-poster{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:clamp(18px,4.5%,44px);background:linear-gradient(90deg,rgba(11,18,32,.96) 0%,rgba(11,18,32,.86) 38%,rgba(11,18,32,.18) 72%,rgba(11,18,32,0) 100%),url("premier-vol-art.webp") center/cover no-repeat,#0B1220}
.optm-v-poster__num{font:500 12px/1.35 var(--o-mono);letter-spacing:.1em;text-transform:uppercase;color:#D4A574}
.optm-v-poster__title{max-width:18ch;margin-top:10px;font:500 clamp(20px,3vw,34px)/1.12 var(--o-serif);letter-spacing:-.015em;color:#F5F0E6}
.optm-v-poster__state{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:#C9C3BA}
.optm-v-poster__state::before{content:"";width:8px;height:8px;border-radius:50%;background:#D4A574;animation:optm-v-pulse 1.4s ease-in-out infinite}
.optm-v-stage.is-blocked .optm-v-poster__state::before{animation:none;background:#8A8580}
@keyframes optm-v-pulse{50%{opacity:.25}}
.optm-v-blocked{display:none;max-width:44ch;margin-top:12px;font-size:14px;line-height:1.55;color:#C9C3BA}
.optm-v-stage.is-blocked .optm-v-blocked{display:block}
.optm-v-stage.is-blocked .optm-v-poster__state span{display:none}
.optm-v-stage.is-blocked .optm-v-poster__state::after{content:"Lecture réservée à optimike.net";color:#E8E4DF;font-weight:600}

/* Previous / seen / next */
.optm-v-steps{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:stretch;margin-top:16px}
.optm-v-step{display:flex;flex-direction:column;justify-content:center;gap:4px;min-height:64px;padding:12px 16px;border:1px solid var(--o-line-strong);border-radius:2px;text-decoration:none!important;min-width:0}
.optm-v-step:hover{background:var(--o-surface)}
.optm-v-step__dir{font:500 12px/1.35 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-muted)}
.optm-v-step__title{font-size:15px;font-weight:600;line-height:1.3;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.optm-v-step--next{text-align:right;background:var(--o-button-bg);border-color:var(--o-button-bg);color:var(--o-button-ink)!important}
.optm-v-step--next:hover{background:var(--o-button-bg);opacity:.92}
.optm-v-step--next .optm-v-step__dir{color:inherit;opacity:.78}
.optm-v-step--empty{border-style:dashed;justify-content:center;color:var(--o-muted);font-size:14px}
.optm-v-step--end{text-align:right}
.optm-v-seen{display:none;align-items:center;gap:10px;min-height:64px;padding:0 18px;border:1px solid var(--o-line-strong);border-radius:2px;cursor:pointer;font-size:15px;font-weight:600;white-space:nowrap;user-select:none}
.optm-v-ready .optm-v-seen{display:inline-flex}
.optm-v-seen:hover{background:var(--o-surface)}
.optm-v-seen input{appearance:none;-webkit-appearance:none;flex:none;width:20px;height:20px;margin:0;border:1.5px solid var(--o-muted);border-radius:2px;display:grid;place-content:center;cursor:pointer;background:transparent}
.optm-v-seen input::after{content:"";width:10px;height:6px;border-left:2px solid var(--o-bg);border-bottom:2px solid var(--o-bg);transform:rotate(-45deg) translate(1px,-1px);opacity:0}
.optm-v-seen input:checked{background:var(--o-success);border-color:var(--o-success)}
.optm-v-seen input:checked::after{opacity:1}
.optm-v-seen:has(input:focus-visible){outline:2px solid var(--o-accent-text);outline-offset:3px}
.optm-v-seen input:focus-visible{outline:none}

/* ---------- Course notes ---------- */
.optm-v-notes{margin-top:clamp(40px,5vw,56px);padding-top:28px;border-top:1px solid var(--o-line)}
.optm-v-notes__head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.optm-v-notes__title{font:500 clamp(22px,2.4vw,26px)/1.2 var(--o-serif);letter-spacing:-.01em}
.optm-v-notes__tools{display:none;gap:8px}
.optm-v-ready .optm-v-notes__tools{display:flex}
.optm-v-ghost{min-height:40px;padding:0 14px;border:1px solid var(--o-line-strong);border-radius:2px;background:transparent;cursor:pointer;font-size:14px;font-weight:600}
.optm-v-ghost:hover{background:var(--o-surface)}
.optm-videos .video-notes{max-width:68ch;font-size:17px;line-height:1.72;color:var(--o-ink)}
.optm-videos .video-notes > * + *{margin-top:1em}
.optm-videos .video-notes h3{margin-top:2em;font:500 23px/1.25 var(--o-serif);letter-spacing:-.01em}
.optm-videos .video-notes > h3:first-child{margin-top:0}
.optm-videos .video-notes > p:first-child{font-size:19px;line-height:1.6}
.optm-videos .video-notes h4{margin-top:1.8em;font:600 17px/1.35 var(--o-sans)}
.optm-videos .video-notes h4 + *{margin-top:.5em}
.optm-videos .video-notes details > summary + h4{margin-top:.6em}
.optm-videos .video-notes ul,.optm-videos .video-notes ol{margin:0;padding-left:1.3em}
.optm-videos .video-notes li + li{margin-top:.4em}
.optm-videos .video-notes li::marker{color:var(--o-accent-text)}
.optm-videos .video-notes ol li::marker{font:500 .85em var(--o-mono)}
.optm-videos .video-notes strong{font-weight:600}
.optm-videos .video-notes code{font:400 .86em/1.4 var(--o-mono);padding:.12em .38em;background:var(--o-surface-2);border-radius:2px;overflow-wrap:anywhere}
.optm-videos .video-notes pre{padding:16px 18px;background:#131316;color:#E8E4DF;border:1px solid #2E2E34;border-radius:4px;overflow-x:auto;font:400 14px/1.6 var(--o-mono)}
.optm-videos .video-notes pre code{padding:0;background:none;color:inherit;font-size:inherit;overflow-wrap:normal}
.optm-videos .video-notes blockquote{margin:1.4em 0;padding:2px 0 2px 20px;border-left:2px solid var(--o-accent);font:500 20px/1.45 var(--o-serif);color:var(--o-ink)}
.optm-videos .video-notes hr{border:0;border-top:1px solid var(--o-line);margin:2em 0}
.optm-videos .video-notes a{text-decoration-color:var(--o-accent-text)}
.optm-videos .video-notes details{margin-top:0;border-top:1px solid var(--o-line)}
.optm-videos .video-notes details + :not(details),.optm-videos .video-notes :not(details) + details{margin-top:1.6em}
.optm-videos .video-notes details:last-child,.optm-videos .video-notes details:has(+ :not(details)){border-bottom:1px solid var(--o-line)}
.optm-videos .video-notes summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:12px 2px;cursor:pointer;list-style:none;font-weight:600;line-height:1.35}
.optm-videos .video-notes summary::-webkit-details-marker{display:none}
.optm-videos .video-notes summary::after{content:"";flex:none;width:9px;height:9px;margin-right:6px;border-right:1.5px solid var(--o-accent-text);border-bottom:1.5px solid var(--o-accent-text);transform:rotate(45deg) translateY(-3px);transition:transform var(--o-fast) var(--o-ease)}
.optm-videos .video-notes details[open] > summary::after{transform:rotate(225deg) translateY(-2px)}
.optm-videos .video-notes summary:hover{color:var(--o-accent-text)}
.optm-videos .video-notes details > :not(summary){margin-left:2px}
.optm-videos .video-notes details > :last-child:not(summary){margin-bottom:1.2em}
.optm-videos .video-notes details > summary + *{margin-top:.2em}
.optm-videos .video-notes aside{margin:1.6em 0;padding:18px 20px;background:var(--o-surface);border:1px solid var(--o-line);border-left:3px solid var(--o-line-strong);border-radius:2px;font-size:16px;line-height:1.65}
.optm-videos .video-notes aside > * + *{margin-top:.6em}
.optm-videos .video-notes aside h4,.optm-videos .video-notes aside > p:first-child > strong:only-child{display:block;margin:0 0 .4em;font:500 12px/1.35 var(--o-mono);letter-spacing:.08em;text-transform:uppercase}
.optm-videos .video-notes aside[class*="retenir"]{border-left-color:var(--o-accent)}
.optm-videos .video-notes aside[class*="retenir"] h4,.optm-videos .video-notes aside[class*="retenir"] > p:first-child > strong:only-child{color:var(--o-accent-text)}
.optm-videos .video-notes aside[class*="action"]{background:transparent;border:1px solid var(--o-ink);border-left-width:3px}
.optm-videos .video-notes aside[class*="action"] h4,.optm-videos .video-notes aside[class*="action"] > p:first-child > strong:only-child{color:var(--o-ink)}
.optm-videos .video-notes aside[class*="ressource"]{border-left-color:var(--o-info)}
.optm-videos .video-notes aside[class*="ressource"] h4,.optm-videos .video-notes aside[class*="ressource"] > p:first-child > strong:only-child{color:var(--o-info)}
/* Agent callout: a request to copy into the reader's agent (Copier button added by the script). */
.optm-videos .video-notes aside[class*="agent"]{border-left-color:var(--o-success)}
.optm-videos .video-notes aside[class*="agent"] h4,.optm-videos .video-notes aside[class*="agent"] > p:first-child > strong:only-child{color:var(--o-success-text)}
.optm-videos .video-notes aside[class*="agent"] > blockquote{margin:.5em 0 0;padding:14px 16px;background:var(--o-bg);border:1px solid var(--o-line-strong);border-left:2px solid var(--o-success);border-radius:2px;font:400 16px/1.6 var(--o-sans);color:var(--o-ink)}
.optm-videos .video-notes aside[class*="agent"] > blockquote > * + *{margin-top:.6em}
.optm-videos .video-notes aside[class*="agent"] a code{text-decoration:inherit}
.optm-videos .video-notes .optm-v-copybar{display:flex;justify-content:flex-end;margin-top:8px}
.optm-videos .optm-v-copy{min-width:96px}
.optm-videos .optm-v-copy.is-done{border-color:var(--o-success);color:var(--o-success-text)}
.optm-videos .optm-v-copy.is-done::before{content:"✓ ";font-family:var(--o-mono)}
/* Course screenshots (0.3.2): <figure><img src="{{ASSET}}/….webp" width height><figcaption>. The image keeps its
 * ratio (width/height attributes), never overflows the column, and sits on a framed surface in both themes. */
.optm-videos .video-notes figure{margin:1.4em 0 0;padding:0}
.optm-videos .video-notes figure + figure{margin-top:1.8em}
.optm-videos .video-notes figure img{display:block;max-width:100%;height:auto;border:1px solid var(--o-line-strong);border-radius:4px;background:var(--o-surface-2);box-shadow:var(--o-shadow)}
.optm-videos .video-notes figcaption{margin-top:.6em;max-width:60ch;font-size:15px;line-height:1.55;color:var(--o-muted)}
.optm-videos .video-notes figcaption code{font-size:.84em}
/* Screenshot zoom (0.3.10): each image of the notes is a button that opens « Capture agrandie »
 * (<dialog>, script). Same behaviour as the site's diagram-viewer; nothing is loaded again. */
.optm-videos .optm-v-zoom{display:block;width:auto;max-width:100%;padding:0;border:0;background:none;cursor:zoom-in;text-align:left;border-radius:4px}
.optm-videos .optm-v-zoom img{display:block}
.optm-videos .optm-v-zoom:focus-visible{outline:2px solid var(--o-accent-text);outline-offset:4px}
.optm-videos .optm-v-zoom__hint{display:inline-block;margin-top:.5em;font:500 12px/1.35 var(--o-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--o-accent-text)}
.optm-videos .optm-v-zoom:hover .optm-v-zoom__hint{text-decoration:underline;text-underline-offset:3px}
.optm-v-lightbox{width:min(1400px,calc(100vw - 48px));max-width:none;max-height:calc(100vh - 48px);max-height:calc(100dvh - 48px);margin:auto;padding:0;border:1px solid var(--o-line-strong);border-radius:4px;background:var(--o-bg);color:var(--o-ink);box-shadow:0 24px 64px -24px rgba(0,0,0,.6);overflow:hidden}
.optm-v-lightbox[open]{display:flex;flex-direction:column}
.optm-v-lightbox::backdrop{background:rgba(19,19,22,.78)}
.optm-v-lightbox__bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 12px 10px 20px;border-bottom:1px solid var(--o-line)}
.optm-v-lightbox__title{margin:0;font:500 12px/1.35 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-muted)}
.optm-v-lightbox__close{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:1px solid var(--o-line-strong);border-radius:2px;background:transparent;color:var(--o-ink);font:400 26px/1 var(--o-sans);cursor:pointer}
.optm-v-lightbox__close:hover{background:var(--o-surface)}
.optm-v-lightbox__close:focus-visible{outline:2px solid var(--o-accent-text);outline-offset:2px}
.optm-v-lightbox__stage:focus-visible{outline:2px solid var(--o-accent-text);outline-offset:-2px}
.optm-v-lightbox__stage{flex:1 1 auto;min-height:0;overflow:auto;overscroll-behavior:contain;padding:20px;display:grid;place-items:center;background:var(--o-surface-2)}
.optm-v-lightbox__img{display:block;max-width:none;width:auto;height:auto}
.optm-v-lightbox__caption{margin:0;padding:12px 20px 16px;border-top:1px solid var(--o-line);font-size:15px;line-height:1.55;color:var(--o-muted)}
.optm-v-lightbox__caption[hidden]{display:none}
:root.optm-v-lightbox-open{overflow:hidden}

/* ---------- Table of contents ---------- */
.optm-v-toc{scroll-margin-top:16px;position:sticky;top:24px;max-height:calc(100vh - 48px);overflow:auto;overscroll-behavior:contain;border:1px solid var(--o-line);border-radius:2px;background:var(--o-bg)}
.optm-v-toc__head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:18px 18px 14px;border-bottom:1px solid var(--o-line)}
.optm-v-toc__head h2{font:500 21px/1.2 var(--o-serif);letter-spacing:-.01em}
.optm-v-toc__count{font-size:13px;color:var(--o-muted);white-space:nowrap}
.optm-v-toc ol{list-style:none;margin:0;padding:6px 0}
.optm-v-toc__part{display:flex;align-items:baseline;gap:10px;padding:16px 18px 4px;font-size:14px;font-weight:600;line-height:1.35}
.optm-v-toc__part + ol{padding-top:2px}
.optm-v-toc ol + .optm-v-toc__part{margin-top:4px;border-top:1px solid var(--o-line)}
.optm-v-toc__partnum{flex:none;font:500 11px/1.35 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-accent-text)}
.optm-v-toc__dur{padding-top:2px;font:500 12px/1.5 var(--o-mono);color:var(--o-muted);text-align:right;white-space:nowrap}
.optm-v-toc a{position:relative;display:grid;grid-template-columns:30px minmax(0,1fr) auto 18px;gap:10px;align-items:start;padding:9px 16px 9px 18px;text-decoration:none!important;font-size:15px;line-height:1.38}
.optm-v-toc a:hover{background:var(--o-surface)}
.optm-v-toc__num{padding-top:2px;font:500 12px/1.5 var(--o-mono);color:var(--o-muted)}
.optm-v-toc__kind{display:block;margin-top:2px;font:500 11px/1.4 var(--o-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--o-muted)}
.optm-v-toc__check{width:18px;height:18px;margin-top:1px;border-radius:50%;display:grid;place-content:center}
.optm-v-toc li.is-seen .optm-v-toc__check{background:var(--o-success)}
.optm-v-toc li.is-seen .optm-v-toc__check::after{content:"";width:8px;height:4.5px;border-left:1.5px solid var(--o-bg);border-bottom:1.5px solid var(--o-bg);transform:rotate(-45deg) translate(.5px,-.5px)}
.optm-v-toc a[aria-current="true"]{background:var(--o-surface);font-weight:600}
.optm-v-toc a[aria-current="true"]::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--o-accent)}
.optm-v-toc a[aria-current="true"] .optm-v-toc__num{color:var(--o-accent-text)}
.optm-v-toc__note{padding:12px 18px 16px;border-top:1px solid var(--o-line);font-size:13px;line-height:1.5;color:var(--o-muted)}
.optm-v-toc__note{display:none}
.optm-v-ready .optm-v-toc__note{display:block}

/* ---------- Empty list, single-message pages ---------- */
.optm-v-empty{max-width:640px;padding:28px 28px 30px;background:var(--o-surface);border:1px solid var(--o-line);border-radius:2px}
.optm-v-empty p + p{margin-top:10px}
.optm-v-single{padding:clamp(40px,8vw,96px) 0 clamp(56px,9vw,112px)}
.optm-v-single .optm-v-wrap{max-width:calc(680px + 2 * var(--o-gutter))}
.optm-v-single h1{margin-top:14px;font:500 clamp(36px,5.4vw,52px)/1.06 var(--o-serif);letter-spacing:-.025em}
.optm-v-single__lead{margin-top:18px;font-size:18px;line-height:1.6}
.optm-v-single__text{margin-top:14px;color:var(--o-muted);font-size:16px}
.optm-v-notice{margin-top:24px;padding:16px 18px;border:1px solid var(--o-line-strong);border-left:3px solid var(--o-accent);border-radius:2px;background:var(--o-surface);font-size:16px;line-height:1.55}
.optm-v-notice--ok{border-left-color:var(--o-success)}
.optm-v-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.optm-v-actions .optm-v-button{display:inline-flex}
.optm-v-link-button{display:inline-flex;align-items:center;min-height:56px;padding:0 20px;border:1px solid var(--o-line-strong);border-radius:2px;text-decoration:none!important;font-weight:600}
.optm-v-link-button:hover{background:var(--o-surface)}
.optm-v-form{margin-top:28px;padding:24px;border:1px solid var(--o-line);border-radius:2px;background:var(--o-surface)}
.optm-v-form__intro{margin:0 0 18px;color:var(--o-muted)}
.optm-v-single__help{margin-top:28px}
.optm-v-form label{display:block;margin-bottom:8px;font-weight:600}
.optm-v-form__row{display:flex;gap:10px;flex-wrap:wrap}
.optm-v-form input[type=email]{flex:1 1 260px;min-width:0;min-height:56px;padding:0 16px;font:inherit;font-size:17px;color:var(--o-ink);background:var(--o-bg);border:1px solid var(--o-control);border-radius:2px}
.optm-v-form input[type=email]:focus{outline:2px solid var(--o-accent-text);outline-offset:1px;border-color:transparent}
.optm-v-form .optm-v-button{flex:0 0 auto}
.optm-v-form__help{margin-top:12px;font-size:14px;color:var(--o-muted)}

/* ---------- Footer ---------- */
.optm-v-footer{border-top:1px solid var(--o-line);background:var(--o-surface);font-size:15px}
.optm-v-footer .optm-v-wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 48px;padding-top:36px;padding-bottom:36px}
.optm-v-footer h2{margin-bottom:8px;font:600 15px/1.3 var(--o-sans)}
.optm-v-footer p{color:var(--o-muted);line-height:1.6}
.optm-v-footer a{color:var(--o-ink)}
.optm-v-footer__legal{grid-column:1/-1;padding-top:20px;border-top:1px solid var(--o-line);font-size:13px}
.optm-v-footer--slim .optm-v-wrap{grid-template-columns:1fr}
.optm-v-footer--slim .optm-v-footer__legal{border-top:0;padding-top:0}
.optm-v-footer__more{margin-top:8px}
.optm-v-footer__more a{font-weight:600}
.optm-v-footer__more a::after{content:" →";font-family:var(--o-mono)}
.optm-v-textbutton{padding:0;border:0;background:none;color:var(--o-ink);text-decoration:underline;text-decoration-color:var(--o-accent);text-underline-offset:3px;cursor:pointer;font-size:inherit}
[data-optm-progress-only]{display:none}
.optm-v-ready [data-optm-progress-only]{display:block}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .optm-v-ready .optm-v-lesson__toc{display:inline-block}
  .optm-v-layout{grid-template-columns:minmax(0,1fr)}
  .optm-v-toc{position:static;max-height:none}
}
@media (max-width:860px){
  .optm-v-course .optm-v-wrap{grid-template-columns:minmax(0,1fr);align-items:start}
  .optm-v-footer .optm-v-wrap{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .optm-v-lightbox{width:100vw;height:100vh;height:100dvh;max-height:none;border:0;border-radius:0}
  .optm-v-lightbox__stage{padding:12px;place-items:start}
  .optm-videos{font-size:16px}
  .optm-v-topbar .optm-v-wrap{min-height:58px}
  .optm-v-logo{font-size:21px}
  .optm-v-brand{gap:8px}
  .optm-v-brand__product{padding-left:10px;letter-spacing:.05em}
  .optm-v-brand__suite{display:none}
  .optm-v-tracks{padding-left:6px}
  .optm-v-tracks__tab{padding:0 7px;letter-spacing:.04em;font-size:11px}
  .optm-v-tracks__tab[aria-current="page"]::after{left:7px;right:7px}
  .optm-v-tools a{display:none}
  .optm-v-course__intro{font-size:16px}
  .optm-v-resume{padding:18px}
  .optm-v-lesson__head{flex-direction:column;align-items:flex-start;gap:10px}
  .optm-v-lesson__part{order:-1;flex-basis:100%;color:var(--o-accent-text)}
  .optm-v-lesson__label > .optm-v-lesson__part::before{content:none}  .optm-v-steps{grid-template-columns:1fr 1fr}
  .optm-v-seen{grid-column:1/-1;grid-row:1;justify-content:center;min-height:52px}
  .optm-v-step{min-height:72px;padding:10px 14px}
  .optm-v-poster__title{display:none}
  .optm-v-poster__state{margin-top:12px;font-size:13px}
  .optm-v-blocked{display:none!important}
  .optm-v-stage{border-radius:2px;margin-left:calc(-1 * var(--o-gutter));margin-right:calc(-1 * var(--o-gutter));border-left:0;border-right:0}
  .optm-videos .video-notes{font-size:16.5px}
  .optm-videos .video-notes > p:first-child{font-size:18px}
  .optm-v-form{padding:18px}
  .optm-v-form .optm-v-button{flex:1 1 100%;justify-content:center}
}
@media (max-width:480px){
  /* Tabs need the whole bar: the logo gives way (theme toggle kept). */
  .optm-v-brand--tracks .optm-v-logo{display:none}
  .optm-v-brand--tracks .optm-v-tracks{border-left:0;padding-left:0}
}
@media (max-width:380px){
  .optm-v-brand__product{display:none}
}
@media (prefers-reduced-motion:reduce){
  .optm-videos *,.optm-videos *::before,.optm-videos *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ---------- Print: the course sheet of the current lesson ---------- */
@media print{
  @page{margin:16mm 18mm}
  .optm-videos{background:#fff;color:#111;font-size:11pt;display:block}
  .optm-videos{--o-ink:#111;--o-muted:#444;--o-line:#ccc;--o-surface:#f4f2ee;--o-accent:#985C26;--o-accent-text:#985C26}
  .optm-videos .optm-v-zoom__hint,.optm-v-lightbox{display:none!important}
  .optm-v-topbar,.optm-v-skip,.optm-v-resume,.optm-v-toc,.optm-v-stage,.optm-v-steps,.optm-v-notes__tools,.optm-v-footer,.optm-v-seenmark,.optm-videos .video-notes .optm-v-copybar{display:none!important}
  .optm-v-course{padding:0 0 12pt;border:0}
  .optm-v-course .optm-v-wrap{display:block;padding:0}
  .optm-v-course h1{font-size:14pt;margin:0}
  .optm-v-course__intro,.optm-v-course__meta,.optm-v-course .optm-v-label,.optm-v-lesson__toc{display:none!important}
  .optm-v-layout{display:block;padding:0}
  .optm-v-wrap{max-width:none;padding:0}
  .optm-v-lesson__head h2{font-size:22pt}
  .optm-v-notes{margin-top:12pt;padding-top:12pt}
  .optm-videos .video-notes{max-width:none;font-size:11pt;line-height:1.55}
  .optm-videos .video-notes details{break-inside:avoid}
  .optm-videos .video-notes summary::after{display:none}
  .optm-videos .video-notes aside,.optm-videos .video-notes pre,.optm-videos .video-notes blockquote,.optm-videos .video-notes figure{break-inside:avoid}
  .optm-videos .video-notes figure img{box-shadow:none;max-height:120mm;width:auto}
  .optm-videos .video-notes pre{background:#f4f2ee;color:#111;border-color:#ccc;white-space:pre-wrap}
  .optm-videos .video-notes a::after{content:" (" attr(href) ")";font-size:9pt;color:#444;overflow-wrap:anywhere}
  .optm-v-ready .optm-v-lesson:not(.is-current),.optm-v-ready .optm-v-track:not(.is-current-track){display:none!important}
}