/* L'entrée en quatre temps (16/10/2026) : quatre écrans courts avant la conversation, puis deux portes.
   Piloté par intro.js. Partagé par la variante 2 (Le fil) et la variante 3 (La scène). */

/* ——— L'entrée en quatre temps ——— */
.fil-intro { position: fixed; inset: 0; z-index: 90; display: grid; grid-template-rows: auto 1fr auto; padding: clamp(18px, 3vw, 40px); background: var(--bg); color: var(--ink); }
.fil-intro__head { display: flex; justify-content: space-between; align-items: center; font: 500 10px/1.5 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.fil-intro__head b { padding: 2px 7px; background: var(--accent); color: var(--ink); font-weight: 600; }
.fil-intro__skip { font: 500 10px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.fil-intro__skip:hover { color: var(--ink); }
.fil-intro__beats { position: relative; list-style: none; margin: 0; padding: 0; display: grid; align-content: center; }
.fil-intro__beats li { grid-area: 1 / 1; max-width: 760px; margin: 0 auto; width: 100%; opacity: 0; transform: translateY(14px); filter: blur(6px); transition: opacity .6s, transform .6s, filter .6s; pointer-events: none; }
.fil-intro__beats li.is-on { opacity: 1; transform: none; filter: none; }
.fil-intro__n { display: inline-block; padding: 2px 7px; margin-bottom: 18px; background: var(--ink); color: var(--bg); font: 500 10px/1.45 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.fil-intro__beats h2 { margin: 0 0 16px; font: 800 clamp(34px, 6vw, 72px)/.98 var(--display); letter-spacing: -.07em; text-wrap: balance; }
.fil-intro__beats h2 em { font-style: normal; background: var(--accent); padding: 0 .08em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.fil-intro__beats p { margin: 0; max-width: 520px; font: 400 clamp(13px, 1.1vw, 15px)/1.7 var(--mono); color: var(--muted); }
.fil-intro__foot { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; max-width: 760px; width: 100%; margin: 0 auto; }
.fil-intro__dots { display: flex; gap: 6px; }
.fil-intro__dots i { width: 28px; height: 2px; background: color-mix(in srgb, var(--outline) 50%, transparent); overflow: hidden; position: relative; }
.fil-intro__dots i.is-done { background: var(--ink); }
.fil-intro__dots i.is-on:after { content: ""; position: absolute; inset: 0; background: var(--ink); transform-origin: 0 50%; animation: fil-fill var(--beat, 4.2s) linear forwards; }
.fil-intro__actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.fil-intro__go { display: inline-flex; align-items: center; gap: 14px; min-height: 48px; padding: 12px 18px; background: var(--cta); border: 1px solid color-mix(in srgb, var(--ink) 30%, transparent); font: 600 12px var(--mono); letter-spacing: .04em; transition: transform .3s cubic-bezier(.22,.8,.24,1), box-shadow .3s; }
.fil-intro__go svg { width: 20px; height: 20px; }
.fil-intro__go:hover { transform: translateY(-2px); box-shadow: 0 0 0 3px var(--accent); }
.fil-intro__write { font: 500 10.5px var(--mono); letter-spacing: .06em; color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.fil-intro__write:hover { color: var(--ink); }
.fil-intro { animation: fil-enter .6s cubic-bezier(.22,.8,.24,1) both; }
.fil-intro.is-leaving { animation: fil-leave .5s cubic-bezier(.22,.8,.24,1) forwards; }
@keyframes fil-enter { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes fil-fill { to { transform: scaleX(1); } from { transform: scaleX(0); } }
@keyframes fil-leave { to { opacity: 0; transform: translateY(-12px); } }

@media (max-width: 1024px) {
  .fil-intro__beats h2 { font-size: clamp(30px, 9vw, 42px); }
  .fil-intro__foot { flex-direction: column; align-items: stretch; }
  .fil-intro__actions { justify-content: space-between; }
}
@media (prefers-reduced-motion: reduce) {
  .fil-intro__beats li { transition: none; }
  .fil-intro__dots i.is-on:after { animation: none; transform: scaleX(1); }
  .fil-intro { animation: none; }
  .fil-intro.is-leaving { animation: none; display: none; }
}