/* ORAEON EdTech — compléments à site.css (charte commune de l'écosystème). Vert = maîtrise, orange et rouge = difficultés. */
.brand .sub { margin-left: 2px; padding: 4px 9px; border: 1px solid color-mix(in srgb, var(--edu) 50%, transparent); border-radius: 100px; font: 500 10.5px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--edu); }
.btn { --c: var(--edu); } .btn.sm, .btn.glow { --c: #fff; }
.nav a, .foot nav a { cursor: pointer; white-space: nowrap; }
@media (max-width: 1240px) { .nav a[data-parent] { display: none; } }
.eyebrow { color: var(--edu); }

/* ---------- Accueil ---------- */
.ehero { position: relative; min-height: 100svh; display: grid; align-items: center; overflow: hidden; padding: 104px 0 70px; background: radial-gradient(ellipse 60% 60% at 78% 44%, rgba(52, 201, 138, .2), transparent 70%), radial-gradient(ellipse 50% 50% at 0% 100%, rgba(18, 95, 166, .24), transparent 70%), var(--night); }
.ehero canvas { position: absolute; inset: 0; width: 100%; height: 100%; mask-image: radial-gradient(ellipse 75% 70% at 70% 45%, #000 10%, transparent 75%); }
.ehero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 140px; background: linear-gradient(transparent, var(--night)); pointer-events: none; }
.ehero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.ehero-copy { display: grid; gap: 26px; justify-items: start; }
.ehero h1 { font-size: clamp(36px, 5vw, 76px); font-weight: 700; letter-spacing: -.04em; }
.ehero-copy > * { opacity: 0; animation: fade-up 1s var(--ease) forwards; }
.ehero-copy > :nth-child(2) { animation-delay: .12s; } .ehero-copy > :nth-child(3) { animation-delay: .28s; } .ehero-copy > :nth-child(4) { animation-delay: .42s; }

.device.edu { --c: var(--edu); }
.device.wide { transform: none !important; }
.pad { padding: 20px 18px 22px; }
.kpis { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); }
.kpis div { padding: 20px 18px; display: grid; gap: 6px; }
.kpis div + div { border-left: 1px solid var(--line); }
.kpis b { font: 700 clamp(34px, 4vw, 52px)/1 var(--display); letter-spacing: -.04em; color: #fff; }
.kpis b.up { color: var(--edu); }
.kpis span { font-size: 12.5px; color: var(--muted); }
.kpis.flat { border: 0; gap: 26px; grid-template-columns: auto auto; } .kpis.flat div { padding: 0; border: 0; } .kpis.flat b { font-size: clamp(26px, 3vw, 38px); }
.brow { grid-template-columns: 12ch 1fr 5ch; }

/* ---------- Sections ---------- */
.esec { padding: clamp(46px, 5.6vw, 80px) 0; }
.esec .head h2 { font-size: clamp(30px, 4.6vw, 64px); }
.esec h3 { letter-spacing: -.02em; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.split article { padding: 30px 28px; border-radius: 22px; border: 1px solid var(--line); background: rgba(255, 255, 255, .03); }
.split h3 { font-size: 22px; margin-bottom: 20px; }
.split ul { display: grid; gap: 14px; }
.split li { position: relative; padding-left: 28px; font-size: 16px; color: #b9c8d8; }
.split li::before { content: ""; position: absolute; left: 0; top: .42em; width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--muted); }
.split .have { opacity: .78; }
.split .miss { border-color: color-mix(in srgb, var(--edu) 55%, transparent); background: linear-gradient(160deg, rgba(52, 201, 138, .14), rgba(52, 201, 138, .03)); box-shadow: 0 40px 90px -50px var(--edu); }
.split .miss li { color: #fff; } .split .miss li::before { border-color: var(--edu); background: var(--edu); box-shadow: 0 0 12px var(--edu); }

.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: f; }
.flow li { position: relative; display: grid; gap: 10px; align-content: start; padding: 26px 24px; border-radius: 20px; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(16, 30, 52, .7), rgba(7, 14, 26, .7)); opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease), border-color .3s; transition-delay: calc(var(--i) * 110ms); }
.in.flow li { opacity: 1; transform: none; }
.flow li:hover { border-color: var(--edu); }
.flow span { font: 500 12.5px/1 var(--mono); color: var(--edu); }
.flow li::after { content: "→"; position: absolute; right: 20px; top: 22px; color: var(--muted); font-size: 18px; }
.flow li:last-child::after { content: "↻"; color: var(--edu); }
.flow h3 { font-size: 21px; line-height: 1.12; }
.flow p { font-size: 14.5px; color: #b9c8d8; }

.wide .ba { grid-template-columns: .6fr 1.4fr; }
.wide .before b { font-size: clamp(54px, 8vw, 110px); }
.wide .after { padding: 30px 28px; gap: 18px; }
.wide .bars { gap: 15px; } .wide .brow { font-size: 15px; } .wide .brow div { height: 11px; }
.wide .callout { margin: 0 28px 24px; }
.punch { margin-top: clamp(24px, 3.4vw, 44px); font: 600 clamp(22px, 3vw, 40px)/1.15 var(--display); letter-spacing: -.03em; max-width: 24ch; }

.tdash-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px; padding: 24px 22px; border-bottom: 1px solid var(--line); }
.tdash-head h3 { font-size: 24px; } .tdash-head > div > span { font-size: 13.5px; color: var(--muted); }
.lbl { display: block; margin-bottom: 8px; font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.diffs li { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 15.5px; }
.diffs i { width: 11px; height: 11px; border-radius: 50%; background: var(--k); box-shadow: 0 0 12px var(--k); }
.diffs .ok { --k: var(--edu); } .diffs .mid { --k: var(--amber); } .diffs .low { --k: var(--red); }
.diffs b { font: 400 12.5px/1.3 var(--mono); color: var(--k); text-align: right; }
.reco { margin-top: 20px; padding: 16px 18px; border-radius: 14px; background: rgba(52, 201, 138, .12); border: 1px solid rgba(52, 201, 138, .4); color: #b9f0d6; font-size: 14.5px; font-weight: 600; }

.curve { width: 100%; height: auto; padding: 14px 6px 0; }
.curve .grid { stroke: rgba(255, 255, 255, .07); }
.curve .line { fill: none; stroke: var(--edu); stroke-width: 3.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 2s var(--ease) .3s; filter: drop-shadow(0 0 10px rgba(52, 201, 138, .6)); }
.curve .area { opacity: 0; transition: opacity 1.2s var(--ease) 1.4s; }
.in .curve .line { stroke-dashoffset: 0; } .in .curve .area { opacity: 1; }
.curve .pt { opacity: 0; transition: opacity .5s var(--ease); transition-delay: calc(var(--i) * 380ms + .5s); }
.in .curve .pt { opacity: 1; }
.curve circle { fill: var(--night); stroke: var(--edu); stroke-width: 3; }
.curve text { fill: #fff; font: 600 15px var(--display); text-anchor: middle; }
.curve text.m { fill: var(--muted); font: 400 12px var(--mono); }

.auds { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: start; }
.aud { display: grid; gap: 10px; justify-items: start; padding: 26px 22px; border-radius: 20px; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(16, 30, 52, .7), rgba(7, 14, 26, .7)); transition: border-color .3s, box-shadow .4s var(--ease); }
.aud:hover, .aud.open { border-color: var(--edu); box-shadow: 0 30px 70px -44px var(--edu); }
.ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: rgba(52, 201, 138, .14); color: var(--edu); font-size: 20px; }
.aud small { font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.aud h3 { font-size: 21px; line-height: 1.14; }
.aud button { display: inline-flex; align-items: center; gap: 8px; padding: 6px 0; border: 0; background: none; color: var(--edu); font-size: 13.5px; font-weight: 600; }
.aud button i { font-style: normal; font-size: 17px; line-height: 1; }
.aud ul { display: grid; gap: 10px; max-height: 0; overflow: hidden; opacity: 0; transition: max-height .5s var(--ease), opacity .4s; }
.aud.open ul { max-height: 340px; opacity: 1; }
.aud li { position: relative; padding-left: 18px; font-size: 14.5px; color: #cfdbe7; }
.aud li::before { content: ""; position: absolute; left: 0; top: .55em; width: 6px; height: 6px; border-radius: 50%; background: var(--edu); }

.ai { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.ai .head { margin: 0; grid-template-columns: minmax(0, 1fr); }
.ai .head > *, .ai .head .lead { grid-column: 1; grid-row: auto; }
.stack { display: grid; gap: 12px; justify-items: center; padding: 34px 28px; border-radius: 24px; border: 1px solid rgba(77, 163, 240, .35); background: linear-gradient(150deg, rgba(18, 95, 166, .55), rgba(11, 62, 110, .25)); }
.stack small { font-size: 13.5px; color: #b9c8d8; margin-bottom: 6px; }
.stack b { width: 100%; padding: 18px 20px; border-radius: 14px; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16); text-align: center; font: 600 clamp(17px, 1.7vw, 22px)/1.2 var(--display); opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: calc(var(--i) * 220ms + .2s); }
.in.stack b { opacity: 1; transform: none; }
.stack i { font-style: normal; color: var(--edu); font: 600 20px/1 var(--display); }

.wip { justify-self: start; display: inline-flex; align-items: center; gap: 9px; padding: 8px 14px; border-radius: 100px; border: 1px solid rgba(226, 154, 46, .5); background: rgba(226, 154, 46, .12); color: var(--amber); font: 500 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.wip i { width: 8px; height: 8px; border-radius: 50%; background: currentColor; animation: pulse 1.4s ease-in-out infinite; }
.loop { display: flex; flex-wrap: wrap; gap: 10px 0; align-items: center; margin-bottom: clamp(28px, 4vw, 48px); }
.loop li { display: inline-flex; align-items: center; padding: 13px 20px; border-radius: 100px; border: 1px solid var(--line); font: 500 14px/1 var(--mono); animation: loop 7.5s linear infinite; animation-delay: calc(var(--i) * 1.5s); }
.loop li + li { margin-left: 44px; }
.loop li + li::before { content: "→"; position: absolute; margin-left: -52px; color: var(--muted); }
@keyframes loop { 0%, 22%, 100% { border-color: var(--line); color: var(--ink); background: none; box-shadow: none; } 4%, 16% { border-color: var(--edu); color: var(--night); background: var(--edu); box-shadow: 0 0 30px -4px var(--edu); } }
.cards2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cards2 article { display: grid; gap: 10px; padding: 26px 24px; border-radius: 20px; border: 1px dashed rgba(226, 154, 46, .4); background: rgba(226, 154, 46, .04); }
.cards2 h3 { font-size: 20px; } .cards2 p { font-size: 15px; color: #b9c8d8; }

.tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tags li { padding: 14px 22px; border-radius: 100px; border: 1px solid var(--line); font: 600 clamp(16px, 1.7vw, 22px)/1 var(--display); transition: all .3s var(--ease); }
.tags li:hover { background: var(--edu); border-color: var(--edu); color: var(--night); }
.integ { margin-top: clamp(24px, 3.4vw, 44px); display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 20px 40px; align-items: center; padding: 30px 28px; border-radius: 22px; border: 1px solid var(--line); background: rgba(255, 255, 255, .03); }
.integ h3 { font-size: 24px; margin-bottom: 8px; } .integ p { color: #b9c8d8; font-size: 15px; }
.integ ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.integ li { padding: 16px; border-radius: 12px; border: 1px solid var(--line); text-align: center; font-size: 14px; font-weight: 600; color: #dfe8f0; }
.integ .note { grid-column: 1 / -1; font-size: 12.5px; font-style: italic; color: var(--muted); }

.about { display: grid; gap: 18px clamp(32px, 5vw, 80px); justify-items: start; align-items: end; }
@media (min-width: 961px) { .about { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); } .about .eyebrow { grid-column: 1 / -1; } .about .lead { grid-row: 2 / span 2; grid-column: 2; align-self: center; } }
.about h2 { font-size: clamp(30px, 4.6vw, 64px); } .about .lead { max-width: 68ch; }
.contact h2 { max-width: 18ch; font-size: clamp(32px, 5.2vw, 76px); }

@media (max-width: 960px) {
  .ehero { padding-top: 96px; }
  .ehero-grid, .ai { grid-template-columns: minmax(0, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .auds { grid-template-columns: repeat(2, 1fr); }
  .integ { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .brand .sub { display: none; }
  .split, .flow, .auds, .cards2 { grid-template-columns: 1fr; }
  .wide .ba { grid-template-columns: 1fr; }
  .wide .before b { font-size: 46px; }
  .wide .after { padding: 20px 18px; } .wide .callout { margin: 0 18px 18px; }
  .brow { grid-template-columns: 10.5ch 1fr 5ch; }
  .diffs li { grid-template-columns: auto 1fr; } .diffs b { grid-column: 2; text-align: left; }
  .loop { flex-direction: column; align-items: stretch; }
  .loop li { justify-content: center; } .loop li + li { margin-left: 0; margin-top: 18px; }
  .loop li + li::before { content: "↓"; margin-left: 0; margin-top: -46px; }
  .curve text { font-size: 19px; } .curve text.m { font-size: 16px; }
  .kpis.flat { gap: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .ehero-copy > *, .flow li, .stack b, .curve .pt, .curve .area { opacity: 1; transform: none; }
  .curve .line { stroke-dashoffset: 0; }
}