/* ============================================================
   CIA — Keynote · Charte Epitech
   ============================================================ */
:root{
  --blue:        #0A40F5;   /* bleu électrique dominant */
  --blue-deep:   #0730C2;
  --blue-2:      #2F6BFF;   /* titres */
  --blue-soft:   #5C82FF;   /* accents / carrés */
  --blue-pale:   #E8EEFF;
  --blue-mist:   #F3F6FF;
  --orange:      #FF5A1F;   /* accent vif */
  --ink:         #0B1020;
  --gray:        #5B6472;
  --gray-2:      #8a93a3;
  --line:        #e4e9f2;
  --white:       #ffffff;

  --serif: "Inter","Archivo",-apple-system,"Segoe UI",Roboto,sans-serif;
  --cond:  "Oswald","Archivo","Arial Narrow",Impact,sans-serif;
  --mono:  "JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --r: 18px;
  --shadow: 0 24px 60px -28px rgba(10,32,120,.45);
  --shadow-sm: 0 10px 30px -16px rgba(10,32,120,.4);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--serif);
  color:var(--ink);
  background:#06122e;
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ---------- Deck / stage ---------- */
.deck{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;}
.stage{
  position:relative;width:1280px;height:720px;
}

/* Each slide is a 16:9 canvas, scaled to fit the viewport */
.slide{
  position:absolute;
  width:1280px;height:720px;
  background:var(--white);
  border-radius:0;
  overflow:hidden;
  opacity:0;visibility:hidden;
  transform:translateY(28px) scale(.985);
  transition:opacity .55s ease, transform .55s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
  padding:64px 76px;
}
.slide.current{opacity:1;visibility:visible;transform:none;z-index:2}
.slide.past{transform:translateY(-28px) scale(.985)}

/* ---------- Reveal animations ---------- */
[data-anim]{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s cubic-bezier(.22,.61,.36,1)}
.current [data-anim]{opacity:1;transform:none}
.current [data-anim]{transition-delay:calc(var(--i,0)*90ms + 150ms)}

/* ============================================================
   Typo helpers
   ============================================================ */
.kicker{
  font-family:var(--mono);
  font-size:14px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--blue-2);font-weight:600;display:flex;align-items:center;gap:10px;
}
.kicker::before{content:"<";color:var(--blue-soft);font-weight:700}
.kicker::after{content:"/>";color:var(--blue-soft);font-weight:700}

h1.title{
  font-family:var(--cond);font-weight:800;
  font-size:64px;line-height:1.02;letter-spacing:-.01em;color:var(--ink);
  margin:14px 0 6px;
}
h1.title .accent{color:var(--blue)}
.title-underline{width:84px;height:8px;background:var(--orange);border-radius:4px;margin-top:6px}

.lead{font-size:21px;line-height:1.5;color:var(--gray);max-width:62ch}
.lead b,.lead strong{color:var(--ink);font-weight:700}
.hl{color:var(--blue);font-weight:700}
.hl-o{color:var(--orange);font-weight:700}

/* ============================================================
   Slide header (content slides)
   ============================================================ */
.s-head{display:flex;flex-direction:column;gap:2px;margin-bottom:30px}
.s-body{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:center}

/* ============================================================
   Cards & grids
   ============================================================ */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 22px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:10px;position:relative;overflow:hidden;
}
.card .ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--blue-pale);color:var(--blue);flex:none}
.card .ic svg{width:23px;height:23px}
.card h3{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.card p{font-size:14.5px;line-height:1.45;color:var(--gray)}
.card.accent{border-top:3px solid var(--orange)}
.card .num{position:absolute;right:16px;top:8px;font-family:var(--cond);font-weight:800;
  font-size:46px;color:var(--blue-pale);line-height:1}

/* checklist */
.checks{display:flex;flex-direction:column;gap:14px}
.checks li{list-style:none;display:flex;gap:13px;align-items:flex-start;font-size:18px;line-height:1.4;color:var(--gray)}
.checks li b{color:var(--ink)}
.checks .ck{flex:none;width:26px;height:26px;border-radius:8px;background:var(--blue);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;margin-top:1px}
.checks.orange .ck{background:var(--orange)}

/* pills / chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-family:var(--mono);font-size:13.5px;padding:7px 14px;border-radius:999px;
  background:var(--blue-pale);color:var(--blue-deep);font-weight:600;border:1px solid #d6e0ff}
.chip.o{background:#FFE9E0;color:#C2390F;border-color:#ffd0bf}

/* stat */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.stat{background:var(--blue);color:#fff;border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.stat .n{font-family:var(--cond);font-weight:800;font-size:54px;line-height:1}
.stat .l{font-size:15px;opacity:.85;margin-top:6px}
.stat.alt{background:#fff;color:var(--ink);border:1px solid var(--line)}
.stat.alt .n{color:var(--blue)}
.stat.o{background:var(--orange)}

/* table */
table.tbl{width:100%;border-collapse:collapse;font-size:15.5px}
table.tbl th,table.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
table.tbl thead th{background:var(--ink);color:#fff;font-weight:600;font-size:14px;letter-spacing:.02em}
table.tbl thead th:first-child{border-radius:10px 0 0 0}
table.tbl thead th:last-child{border-radius:0 10px 0 0}
table.tbl tbody tr:nth-child(even){background:var(--blue-mist)}
table.tbl td:first-child{font-weight:600;color:var(--ink)}
table.tbl .yes{color:var(--blue);font-weight:700}
table.tbl .pick{background:#FFE9E0!important}

/* code block */
.code{font-family:var(--mono);font-size:14px;background:var(--ink);color:#cfe0ff;
  border-radius:14px;padding:18px 20px;line-height:1.7;box-shadow:var(--shadow-sm);overflow:hidden}
.code .c{color:#5fd0a0}.code .k{color:#79a8ff}.code .o{color:#ffb08a}.code .d{color:#7f8db0}

/* image placeholder */
.ph{
  border:2px dashed var(--blue-soft);border-radius:14px;background:
   repeating-linear-gradient(45deg,#f6f9ff,#f6f9ff 12px,#eef3ff 12px,#eef3ff 24px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:var(--blue-2);text-align:center;padding:18px;min-height:120px}
.ph svg{width:34px;height:34px;opacity:.7}
.ph .t{font-weight:700;font-size:15px}
.ph .s{font-size:12.5px;color:var(--gray-2);font-family:var(--mono)}

/* ============================================================
   Cover & section slides (blue)
   ============================================================ */
.slide.cover,.slide.dark,.slide.end{background:var(--blue);color:#fff;padding:0}
.bg-squares{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.bg-squares i{position:absolute;display:block;background:var(--blue-soft);opacity:.85}
.sq1{width:220px;height:150px;top:0;right:0}
.sq2{width:120px;height:120px;top:120px;right:200px}
.sq3{width:90px;height:90px;bottom:60px;left:-20px;opacity:.5}

.cover .logo,.dark .logo,.end .logo{position:absolute;top:48px;left:60px;z-index:3}
.cover-center{position:relative;z-index:3;display:flex;flex-direction:column;
  align-items:center;justify-content:center;height:100%;text-align:center;padding:0 60px}
.cia{font-family:var(--cond);font-weight:800;font-size:140px;line-height:.9;color:#fff;letter-spacing:-.02em}
.cia .cur{color:var(--orange)}
.cia-bar{width:96px;height:12px;background:var(--orange);border-radius:6px;margin:6px auto 26px}
.cover-sub{font-family:var(--cond);font-weight:700;font-size:30px;letter-spacing:.01em;color:#dfe7ff;max-width:24ch;text-transform:uppercase;line-height:1.12}
.cover-sub .br{color:var(--blue-soft)}
.cover-meta{position:absolute;bottom:46px;left:0;right:0;text-align:center;z-index:3;
  font-family:var(--mono);font-size:14px;color:#cdd9ff;letter-spacing:.04em}
.cover-meta b{color:#fff}

/* logo wordmark */
.epi{font-family:var(--cond);font-weight:800;font-size:30px;letter-spacing:.04em;color:#fff;display:inline-flex;align-items:center;gap:6px}
.epi .br{color:var(--blue-soft);font-weight:800}
.epi.ink{color:var(--ink)} .epi.ink .br{color:var(--blue)}
.epi.blue{color:var(--blue)} .epi.blue .br{color:var(--blue-soft)}

/* section divider slide */
.dark .cover-center{align-items:flex-start;text-align:left}
.dark .sec-no{font-family:var(--mono);font-size:18px;color:var(--blue-soft);letter-spacing:.2em}
.dark .sec-ti{font-family:var(--cond);font-weight:800;font-size:74px;line-height:1.02;margin-top:6px;max-width:20ch}
.dark .sec-ti .accent{color:var(--orange)}

/* end slide */
.end .cover-center{gap:8px}
.end h2{font-family:var(--cond);font-weight:800;font-size:96px}
.end p{font-size:22px;color:#dfe7ff}

/* ============================================================
   Architecture diagram
   ============================================================ */
.archi{display:grid;grid-template-columns:1fr 180px 1fr;gap:0;align-items:stretch;width:100%}
.site{border:2px solid var(--line);border-radius:16px;padding:24px 24px 20px;background:#fff;position:relative;box-shadow:var(--shadow-sm)}
.site.s1{border-color:#bcd0ff}.site.s2{border-color:#ffd0bf}
.site .st-h{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.site .badge{font-family:var(--cond);font-weight:800;font-size:15px;padding:4px 10px;border-radius:8px;color:#fff;background:var(--blue)}
.site.s2 .badge{background:var(--orange)}
.site .st-h .nm{font-weight:700;font-size:15px}
.site .st-h .ip{margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--gray-2)}
.vm{display:flex;align-items:center;gap:11px;background:var(--blue-mist);border:1px solid var(--line);
  border-radius:10px;padding:13px 14px;margin-bottom:12px;font-size:13px}
.vm .vi{width:24px;height:24px;border-radius:6px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--blue);flex:none}
.vm .vi svg{width:14px;height:14px}
.vm b{font-weight:700;color:var(--ink)}
.vm .svc{color:var(--gray);font-size:12px}
.vm:last-child{margin-bottom:0}

.tunnel{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;position:relative}
.tunnel .line{position:absolute;top:50%;left:0;right:0;height:0;border-top:3px dashed var(--blue-soft);z-index:0}
.tunnel .lock{z-index:1;width:54px;height:54px;border-radius:14px;background:var(--blue);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow)}
.tunnel .lock svg{width:26px;height:26px}
.tunnel .lbl{z-index:1;background:#fff;border:1px solid var(--line);border-radius:8px;padding:4px 10px;
  font-family:var(--mono);font-size:11px;color:var(--blue-deep);font-weight:600;text-align:center}

/* ============================================================
   Footer (content slides)
   ============================================================ */
.s-foot{position:absolute;left:76px;right:76px;bottom:26px;display:flex;align-items:center;
  justify-content:space-between;font-family:var(--mono);font-size:12px;color:var(--gray-2)}
.s-foot .ln{flex:1;height:1px;background:var(--line);margin:0 16px}

/* ============================================================
   Chrome: progress, dots, counter, help
   ============================================================ */
.progress{position:fixed;top:0;left:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--blue-soft));
  z-index:50;transition:width .45s ease;box-shadow:0 0 12px rgba(92,130,255,.6)}
.dots{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:9px;z-index:50}
.dots button{width:9px;height:9px;border-radius:50%;border:0;background:rgba(255,255,255,.4);cursor:pointer;padding:0;
  transition:.25s;box-shadow:0 0 0 1px rgba(0,0,0,.06)}
.dots button:hover{background:rgba(255,255,255,.75)}
.dots button.on{background:#fff;height:24px;border-radius:6px}

.counter{position:fixed;left:18px;bottom:16px;z-index:50;font-family:var(--mono);font-size:13px;
  color:#fff;background:rgba(10,32,120,.55);padding:6px 12px;border-radius:999px;backdrop-filter:blur(6px)}
.counter b{color:#fff}.counter span{opacity:.6}

.help{position:fixed;right:18px;bottom:16px;z-index:50;font-family:var(--mono);font-size:11.5px;
  color:#fff;opacity:.55;background:rgba(10,32,120,.45);padding:6px 12px;border-radius:999px}
.nav-arrow{position:fixed;top:50%;transform:translateY(-50%);z-index:50;width:46px;height:46px;border-radius:50%;
  border:0;background:rgba(255,255,255,.14);color:#fff;cursor:pointer;font-size:20px;display:grid;place-items:center;
  transition:.2s;backdrop-filter:blur(6px)}
.nav-arrow:hover{background:rgba(255,255,255,.3)}
.nav-arrow.prev{left:14px}.nav-arrow.next{right:46px}

/* overview mode */
.deck.overview .stage{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:40px;
  align-content:start;overflow:auto;background:#06122e}
.deck.overview .slide{position:relative;width:300px;height:169px;padding:18px 22px;transform:none!important;
  opacity:1;visibility:visible;cursor:pointer;border-radius:12px;box-shadow:var(--shadow);transition:transform .2s}
.deck.overview .slide *{pointer-events:none}
.deck.overview .slide:hover{transform:scale(1.04)!important;outline:3px solid var(--blue-soft)}
.deck.overview .slide.current{outline:3px solid var(--orange)}
.deck.overview .bg-squares,.deck.overview .s-foot,.deck.overview .title-underline{display:none}
.deck.overview .slide h1.title{font-size:26px}.deck.overview .cia{font-size:52px}
.deck.overview .nav-arrow{display:none}

/* ---------- Logo showcase (Stack slide) ---------- */
.logo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;grid-auto-rows:1fr}
.logo-tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-sm);
  padding:20px 16px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px}
.logo-tile .mark{height:62px;display:flex;align-items:center;justify-content:center;gap:14px}
.logo-tile .mark svg{height:58px;width:auto}
.logo-tile .nm{font-weight:700;font-size:16.5px;color:var(--ink);margin-top:8px}
.logo-tile .role{font-size:13px;color:var(--gray);line-height:1.4}
.wordmark{font-family:var(--cond);font-weight:700;font-size:32px;letter-spacing:-.01em;color:#1f2d3d}
.wordmark .reg{font-size:12px;vertical-align:super;color:var(--gray-2)}

@media print{.dots,.counter,.help,.nav-arrow,.progress{display:none}}