:root {
  --bg: #080a0d;
  --bg-soft: #0f1217;
  --panel: #13171d;
  --panel-2: #171c23;
  --line: rgba(255,255,255,.11);
  --text: #f7f7f8;
  --muted: #aeb3bc;
  --red: #ef1725;
  --red-dark: #b90f1b;
  --white: #fff;
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(0,0,0,.36);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { display: block; width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 999; background: white; color: #111; padding: 12px 16px; border-radius: 8px; }
.skip-link:focus { top: 16px; }

.prototype-note {
  min-height: 34px;
  padding: 7px 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  background: linear-gradient(90deg, #be0d18, #f01725, #be0d18);
  color: white;
  text-align: center;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.prototype-note span { font-weight: 900; }
.prototype-note strong { font-weight: 700; }
.prototype-note small { opacity: .82; text-transform: none; letter-spacing: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7,9,12,.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.header-inner { min-height: 86px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 13px; text-decoration: none; min-width: max-content; }
.brand > span:last-child { display: flex; flex-direction: column; line-height: 1.1; }
.brand strong { font-size: 17px; }
.brand small { margin-top: 5px; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.brand-mark { width: 42px; aspect-ratio: 1; border-radius: 9px; display: grid; place-items: center; background: var(--red); box-shadow: 0 8px 25px rgba(239,23,37,.25); }
.brand-mark span { width: 23px; height: 23px; position: relative; }
.brand-mark span::before, .brand-mark span::after { content: ""; position: absolute; background: white; border-radius: 1px; }
.brand-mark span::before { width: 7px; height: 23px; left: 8px; top: 0; }
.brand-mark span::after { width: 23px; height: 7px; left: 0; top: 8px; }
.brand-mark--large { width: 62px; border: 1px solid rgba(255,255,255,.3); }
.nav { margin-left: auto; display: flex; gap: 30px; align-items: center; }
.nav a { position: relative; text-decoration: none; color: #d9dce1; font-size: 14px; font-weight: 650; }
.nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--red); transition: right .25s ease; }
.nav a:hover::after, .nav a:focus-visible::after { right: 0; }
.nav-toggle { display: none; margin-left: auto; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); background: transparent; border-radius: 11px; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; background: white; margin: 4px 0; }

.button { min-height: 46px; padding: 0 20px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 13px; border: 1px solid transparent; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button--primary { background: var(--red); color: white; box-shadow: 0 12px 30px rgba(239,23,37,.24); }
.button--primary:hover { background: #ff2431; }
.button--light { background: white; color: #111319; }
.button--light:hover { background: #f0f1f3; }
.button--ghost { border-color: rgba(255,255,255,.24); color: white; background: rgba(255,255,255,.035); }
.button--ghost:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.07); }

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 78% 24%, rgba(239,23,37,.11), transparent 30%), linear-gradient(135deg, #07090c 0%, #0b0e13 60%, #07090c 100%); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, transparent 0 49.8%, rgba(255,255,255,.025) 50%, transparent 50.2%), linear-gradient(0deg, transparent 0 49.8%, rgba(255,255,255,.018) 50%, transparent 50.2%); background-size: 80px 80px; opacity: .25; }
.hero-lines { position: absolute; left: 35%; right: -15%; top: 45%; height: 2px; background: linear-gradient(90deg, transparent, rgba(239,23,37,.6), transparent); transform: rotate(-5deg); box-shadow: 0 20px 0 rgba(255,255,255,.1), 0 -18px 0 rgba(255,255,255,.05); filter: blur(.2px); }
.hero-grid { position: relative; min-height: 700px; padding-block: 90px 78px; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(380px, .82fr); align-items: center; gap: 70px; }
.eyebrow { width: fit-content; margin: 0 0 28px; padding: 10px 15px; border: 1px solid var(--line); border-radius: 999px; color: #e5e7eb; background: rgba(255,255,255,.035); font-size: 12px; font-weight: 700; }
.eyebrow span { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; background: var(--red); box-shadow: 0 0 16px rgba(239,23,37,.9); }
.english-title { margin: 0 0 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .18em; font-size: 11px; font-weight: 850; }
h1, h2 { margin: 0; line-height: .98; letter-spacing: -.045em; }
h1 { max-width: 700px; font-size: clamp(54px, 6.2vw, 92px); }
h1 em, h2 em { color: var(--red); font-style: normal; }
.hero-copy .lead { max-width: 670px; margin: 30px 0 10px; color: #f0f1f2; font-size: 19px; }
.hero-copy > p:not(.eyebrow):not(.english-title):not(.lead) { max-width: 650px; margin: 0; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.hero-tags span { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: #c8ccd3; background: rgba(255,255,255,.025); font-size: 11px; }
.hero-visual { position: relative; padding: 18px 0 32px; }
.photo-card { position: relative; margin: 0; overflow: hidden; aspect-ratio: 4 / 5; border-radius: 26px; border: 1px solid rgba(255,255,255,.18); background: #161a20; box-shadow: var(--shadow); }
.photo-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(0,0,0,.8) 100%); pointer-events: none; }
.photo-card img { width: 100%; height: 100%; object-fit: cover; }
.photo-card figcaption { position: absolute; z-index: 2; left: 24px; bottom: 22px; display: flex; flex-direction: column; }
.photo-card figcaption span { color: #c6cad1; font-size: 11px; text-transform: uppercase; letter-spacing: .13em; }
.photo-card figcaption strong { font-size: 17px; }
.experience-badge { position: absolute; right: -28px; bottom: 3px; display: flex; align-items: center; gap: 12px; min-width: 184px; padding: 16px 18px; border-radius: 16px; border: 1px solid rgba(255,255,255,.22); background: rgba(18,22,28,.94); box-shadow: 0 18px 40px rgba(0,0,0,.36); backdrop-filter: blur(12px); }
.experience-badge strong { color: var(--red); font-size: 38px; line-height: 1; }
.experience-badge span { color: #d7dae0; font-size: 12px; line-height: 1.3; text-transform: uppercase; letter-spacing: .06em; }

.media { position: relative; overflow: hidden; background: linear-gradient(135deg, #1b2028, #0e1116); }
.media::before { content: attr(data-fallback); position: absolute; inset: 0; display: none; place-items: center; padding: 24px; color: #d8dbe0; text-align: center; font-weight: 800; background: radial-gradient(circle at 50% 40%, rgba(239,23,37,.18), transparent 34%), #151920; }
.media.is-fallback::before { display: grid; }
.media.is-fallback img { visibility: hidden; }
.media--contain img { object-fit: contain !important; }

.speaker-strip { padding: 54px 0; border-bottom: 1px solid var(--line); background: #0c0f14; }
.speaker-strip-grid { display: grid; grid-template-columns: 290px 1fr; gap: 52px; align-items: center; }
.speaker-strip-photo { height: 240px; border-radius: 20px; border: 1px solid var(--line); }
.speaker-strip-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 25%; }
.section-kicker { margin: 0 0 14px; color: var(--red); font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.speaker-strip-copy h2 { max-width: 750px; font-size: clamp(34px, 4vw, 56px); }
.speaker-strip-copy > p:not(.section-kicker) { max-width: 800px; color: var(--muted); }
.mini-facts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.mini-facts span { padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px; color: #c9cdd4; font-size: 12px; }
.mini-facts b { margin-right: 5px; color: white; }

.section { padding: 96px 0; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(280px, 400px); gap: 50px; align-items: end; margin-bottom: 42px; }
.section-heading h2, .meetings-intro h2 { font-size: clamp(38px, 4.8vw, 64px); }
.section-heading > p, .meetings-intro > p:not(.section-kicker) { margin: 0; color: var(--muted); }
.links-section { background: #090b0e; }
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.link-card { position: relative; min-height: 390px; padding: 18px 18px 22px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(180deg, #14181e, #0e1116); overflow: hidden; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.link-card:hover { transform: translateY(-6px); border-color: rgba(239,23,37,.45); box-shadow: 0 22px 55px rgba(0,0,0,.28); }
.link-card-logo { height: 190px; display: grid; place-items: center; padding: 30px; margin-bottom: 24px; border-radius: 15px; background: #fff; }
.link-card-logo img { width: 100%; height: 100%; object-fit: contain; }
.link-card-logo--yellow { background: #f7c935; }
.link-card-type { color: var(--red); font-size: 10px; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.link-card > strong { margin-top: 6px; font-size: 21px; }
.link-card > span:last-of-type { color: var(--muted); font-size: 13px; }
.link-card-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 22px; }
.link-card-actions a { padding: 9px 12px; border: 1px solid var(--line); border-radius: 999px; color: #f2f3f5; text-decoration: none; font-size: 11px; font-weight: 800; transition: border-color .2s ease, background .2s ease; }
.link-card-actions a:hover { border-color: rgba(239,23,37,.6); background: rgba(239,23,37,.1); }

.meetings-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0f1217; }
.meetings-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 56px; align-items: start; }
.meetings-intro { position: sticky; top: 130px; }
.meetings-intro > p:not(.section-kicker) { margin-top: 22px; }
.meeting-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.meeting-card { position: relative; min-height: 330px; padding: 0; border: 1px solid var(--line); border-radius: 19px; cursor: zoom-in; background: #171b22; }
.meeting-card--large { grid-row: span 2; min-height: 675px; }
.meeting-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.meeting-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.83)); pointer-events: none; }
.meeting-card:hover img { transform: scale(1.035); }
.meeting-caption { position: absolute; z-index: 2; left: 20px; right: 20px; bottom: 18px; display: flex; flex-direction: column; text-align: left; }
.meeting-caption small { color: #d2d5da; text-transform: uppercase; letter-spacing: .12em; font-size: 9px; }
.meeting-caption strong { margin-top: 3px; font-size: 18px; }

.video-section { background: #080a0d; }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.video-card { overflow: hidden; text-decoration: none; border: 1px solid var(--line); border-radius: var(--radius); background: #12161c; transition: transform .25s ease, border-color .25s ease; }
.video-card:hover { transform: translateY(-5px); border-color: rgba(239,23,37,.48); }
.video-thumb { display: block; height: 310px; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; }
.video-source { position: absolute; z-index: 3; left: 18px; top: 18px; display: inline-flex; align-items: center; min-height: 28px; padding: 6px 10px; border: 1px solid rgba(255,255,255,.34); border-radius: 999px; color: #fff; background: rgba(8,10,13,.78); box-shadow: 0 8px 24px rgba(0,0,0,.28); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); font-size: 10px; line-height: 1; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.video-card--canalalpha .video-thumb::after { background: linear-gradient(180deg, rgba(0,0,0,.06), rgba(0,0,0,.55)); }
.video-card--canalalpha .video-copy small { color: #ff4b55; }
.video-thumb::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.04), rgba(0,0,0,.48)); }
.play { position: absolute; z-index: 2; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 68px; height: 68px; display: grid; place-items: center; padding-left: 4px; border-radius: 50%; color: white; background: var(--red); box-shadow: 0 15px 45px rgba(239,23,37,.42); }
.video-copy { min-height: 176px; padding: 23px 24px 25px; display: flex; flex-direction: column; }
.video-copy small { color: var(--red); text-transform: uppercase; letter-spacing: .1em; font-size: 10px; font-weight: 900; }
.video-copy strong { margin-top: 9px; font-size: 20px; line-height: 1.25; }
.video-copy > span { margin-top: auto; padding-top: 18px; color: #c8ccd2; font-size: 12px; }

.contact-section { padding: 20px 0 90px; }
.contact-panel { padding: 40px 44px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; border-radius: 24px; background: linear-gradient(120deg, #cb101c, #f01725); box-shadow: 0 25px 70px rgba(239,23,37,.18); }
.contact-panel .section-kicker { color: rgba(255,255,255,.75); }
.contact-panel h2 { font-size: clamp(32px, 4vw, 52px); }
.footer { border-top: 1px solid var(--line); background: #0a0d11; }
.footer-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #9298a2; font-size: 12px; }
.footer a { text-decoration: none; color: #d4d7dc; }

.lightbox { width: min(940px, calc(100% - 28px)); max-height: calc(100vh - 28px); padding: 0; overflow: hidden; color: white; border: 1px solid rgba(255,255,255,.22); border-radius: 20px; background: #0d1015; box-shadow: 0 40px 100px rgba(0,0,0,.65); }
.lightbox::backdrop { background: rgba(0,0,0,.83); backdrop-filter: blur(8px); }
.lightbox img { width: 100%; max-height: calc(100vh - 130px); object-fit: contain; background: #080a0d; }
.lightbox p { margin: 0; padding: 16px 58px 18px 20px; color: #cfd3da; font-size: 13px; }
.lightbox-close { position: absolute; z-index: 5; top: 12px; right: 12px; width: 40px; height: 40px; border: 1px solid rgba(255,255,255,.26); border-radius: 50%; color: white; background: rgba(0,0,0,.64); cursor: pointer; font-size: 25px; line-height: 1; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay, .reveal-delay-1 { transition-delay: .12s; }
.reveal-delay-2 { transition-delay: .22s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 980px) {
  .header-contact { display: none; }
  .nav { gap: 20px; }
  .hero-grid { min-height: auto; grid-template-columns: 1fr 380px; gap: 36px; padding-block: 70px; }
  .experience-badge { right: -8px; }
  .meetings-layout { grid-template-columns: 1fr; }
  .meetings-intro { position: static; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .prototype-note { flex-wrap: wrap; gap: 4px 9px; font-size: 10px; }
  .prototype-note small { width: 100%; }
  .header-inner { min-height: 72px; }
  .nav-toggle { display: block; }
  .nav { position: absolute; top: calc(100% + 1px); left: 0; right: 0; padding: 16px 20px 22px; display: none; flex-direction: column; align-items: stretch; gap: 0; background: rgba(7,9,12,.98); border-bottom: 1px solid var(--line); }
  .nav.is-open { display: flex; }
  .nav a { padding: 13px 4px; border-bottom: 1px solid var(--line); }
  .brand strong { font-size: 15px; }
  .brand small { font-size: 8px; }
  .brand-mark { width: 38px; }
  .hero-grid { grid-template-columns: 1fr; gap: 42px; padding-block: 54px 64px; }
  h1 { font-size: clamp(48px, 15vw, 68px); }
  .hero-copy .lead { font-size: 17px; }
  .hero-visual { max-width: 480px; width: 100%; margin-inline: auto; }
  .experience-badge { right: 8px; bottom: 10px; }
  .speaker-strip-grid { grid-template-columns: 1fr; gap: 28px; }
  .speaker-strip-photo { height: 340px; }
  .section { padding: 72px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 20px; margin-bottom: 32px; }
  .link-grid, .video-grid { grid-template-columns: 1fr; }
  .meetings-layout { gap: 30px; }
  .meeting-grid { grid-template-columns: 1fr 1fr; }
  .meeting-card--large { grid-column: 1 / -1; grid-row: auto; min-height: 460px; }
  .meeting-card { min-height: 285px; }
  .contact-panel { grid-template-columns: 1fr; padding: 32px 26px; }
  .contact-panel .brand-mark { display: none; }
  .contact-panel .button { width: 100%; }
}

@media (max-width: 480px) {
  .hero-actions .button { width: 100%; }
  .hero-tags { gap: 6px; }
  .photo-card { border-radius: 20px; }
  .experience-badge { position: relative; right: auto; bottom: auto; width: fit-content; margin: -26px 12px 0 auto; }
  .speaker-strip-photo { height: 300px; }
  .meeting-grid { grid-template-columns: 1fr; }
  .meeting-card--large { grid-column: auto; min-height: 410px; }
  .meeting-card { min-height: 340px; }
  .video-thumb { height: 230px; }
  .footer-inner { min-height: 90px; flex-direction: column; justify-content: center; text-align: center; }
}

/* Ajustement final : éviter tout rognage du titre sur les écrans très étroits. */
@media (max-width: 760px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { width: 100%; min-width: 0; }
}
@media (max-width: 480px) {
  .hero h1 { max-width: 100%; font-size: clamp(40px, 13vw, 56px); }
}