/* Lancement Constéo Next — feuille de style unique
   Charte reprise de l'emailing : bleu ardoise, bleu clair, terre cuite. */

:root{
  color-scheme:light;

  --ink:#27313f;
  --muted:#6b7688;
  --line:#e9eef5;
  --bg:#ffffff;
  --bg-alt:#f7fafd;
  --card:#ffffff;

  --blue-dark:#4b608a;
  --blue:#6a90c8;
  --blue-soft:#a3bfe2;
  --blue-wash:#f2f7fd;
  --clay:#c07a4c;

  --radius:14px;
  --shadow:0 1px 2px rgba(39,49,63,.04), 0 6px 18px rgba(39,49,63,.045);
  --shadow-lg:0 2px 6px rgba(39,49,63,.05), 0 16px 40px rgba(39,49,63,.07);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  padding-top:env(safe-area-inset-top,0);
  padding-bottom:env(safe-area-inset-bottom,0);
  background:var(--bg);
  color:var(--ink);
  font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto}
[hidden]{display:none!important}
a{color:var(--blue-dark)}

.shell{width:100%;max-width:880px;margin:0 auto;padding-inline:20px}
.shell-wide{max-width:1180px}

.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:9;background:#fff;padding:10px 14px;border-radius:8px}

/* ── Bandeau de titre ─────────────────────────────────────── */
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar .shell{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-block:14px;
}
.topbar-brand{display:flex;align-items:center;gap:14px;min-width:0}
.topbar .logo{width:46px;margin:0;flex:none}
.topbar-title{
  margin:0;font-size:clamp(19px,2.2vw,26px);font-weight:800;
  letter-spacing:-.02em;line-height:1.15;
}
.topbar-title em{font-style:normal;color:var(--blue-dark)}
.topbar-when{margin:0;font-size:13px;color:var(--muted);text-align:right;white-space:nowrap}

/* ── Haut de page : deux colonnes ─────────────────────────── */
.hero{
  background:linear-gradient(180deg,#f3f8fe 0%, #ffffff 68%);
  padding-block:46px 56px;
}

.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,468px);
  gap:48px;
  align-items:start;
}

.split-pitch{padding-top:2px}

.kicker{
  display:inline-block;margin:0 0 16px;
  font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--clay);background:#fdf5ef;border:1px solid #f4e2d3;
  padding:6px 13px;border-radius:999px;
}

h1{
  margin:0 0 16px;
  font-size:clamp(28px,3.4vw,42px);line-height:1.14;letter-spacing:-.02em;font-weight:600;
}
h1 strong{color:var(--blue-dark);font-weight:800}

.lead{margin:0 0 12px;font-size:clamp(17px,1.5vw,19px);color:var(--ink)}
.pitch{margin:0 0 26px;max-width:46ch;color:var(--muted)}

.when{
  margin:0 0 20px;padding:20px 24px;
  border:1px solid #dbe8f7;border-left:5px solid var(--blue);
  border-radius:var(--radius);background:var(--blue-wash);
}
.when-date{
  margin:0 0 4px;font-size:clamp(20px,2.1vw,25px);font-weight:700;
  letter-spacing:-.01em;line-height:1.2;color:var(--ink);
}
.when-time{
  margin:0;display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;
  font-size:clamp(22px,2.4vw,28px);line-height:1.2;color:var(--blue-dark);
}
.when-time strong{font-weight:800;letter-spacing:-.01em}
.when-to{font-size:.62em;color:var(--blue-soft)}
.when-dur{
  font-size:12.5px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;
  color:var(--blue-dark);background:#fff;border:1px solid #dbe8f7;
  padding:3px 10px;border-radius:999px;align-self:center;
}
.when-note{margin:12px 0 0;font-size:13px;line-height:1.5;color:#5a6a82}

/* ── Boutons ──────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border:1px solid transparent;border-radius:10px;
  font:inherit;font-weight:600;text-decoration:none;cursor:pointer;
  transition:background .15s ease,transform .1s ease,box-shadow .15s ease;
}
.btn-lg{padding:15px 32px;font-size:16.5px}
.btn-block{width:100%}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 5px 14px rgba(106,144,200,.25)}
.btn-primary:hover{background:#5c81ba}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--blue-dark)}
.btn-ghost:hover{border-color:var(--blue-soft)}
.btn:focus-visible,.mode:focus-visible,input:focus-visible{outline:3px solid #c6dbf3;outline-offset:2px}
.btn[disabled]{opacity:.65;cursor:progress}

.fine{margin:12px 0 0;font-size:13px;color:var(--muted)}

/* ── Inscription (colonne droite) ─────────────────────────── */
.signup-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:26px 24px 26px;box-shadow:var(--shadow-lg);
}
.signup-card h2{margin:0 0 4px;font-size:21px;letter-spacing:-.01em;text-align:left}
.signup .sub{margin:0 0 18px;color:var(--muted);font-size:14px}

.modes{display:grid;gap:10px;margin-bottom:20px}
.mode{
  display:flex;gap:12px;align-items:flex-start;text-align:left;
  background:#fff;border:1.5px solid var(--line);border-radius:12px;
  padding:13px 15px;cursor:pointer;font:inherit;color:var(--ink);
  transition:border-color .15s ease,background .15s ease;
}
.mode:hover{border-color:var(--blue-soft)}
.mode.is-active{border-color:var(--blue);background:var(--blue-wash)}
.mode-ico{font-size:18px;line-height:1.3;flex:none}
.mode-txt{display:flex;flex-direction:column;gap:2px}
.mode-t{font-weight:700;font-size:14.5px;line-height:1.35}
.mode-d{font-size:12.5px;color:var(--muted)}

.grid{display:grid;gap:13px;grid-template-columns:1fr 1fr}
.field{display:flex;flex-direction:column;gap:6px}
.field span{font-size:13px;font-weight:600;color:#485566}
.field input{
  padding:11px 13px;border:1.5px solid var(--line);border-radius:10px;
  font:inherit;color:var(--ink);background:#fff;transition:border-color .15s ease;
}
.field input::placeholder{color:#b0b9c6}
.field input:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px rgba(106,144,200,.14)}
.field.is-error input{border-color:#d9534f;box-shadow:0 0 0 3px rgba(217,83,79,.1)}

.check{display:flex;gap:10px;align-items:flex-start;margin:16px 0 4px;font-size:13px;color:var(--muted)}
.check input{margin-top:3px;width:17px;height:17px;accent-color:var(--blue);flex:none}

.msg{margin:14px 0 0;padding:11px 13px;border-radius:10px;font-size:13.5px}
.msg.is-error{background:#fdf2f1;border:1px solid #f5dcda;color:#a04440}
.msg.is-info{background:var(--blue-wash);border:1px solid #e0ecf9;color:#4b5a72}
.form .btn-block{margin-top:16px}

.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.spinner{
  display:none;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2s}}

/* ── Programme (pleine largeur) ───────────────────────────── */
.features{padding-block:52px 60px;background:var(--bg-alt);border-top:1px solid var(--line)}
h2{margin:0 0 6px;font-size:clamp(22px,3vw,27px);letter-spacing:-.01em;text-align:center}
.features h2{margin-bottom:26px}

.cards{list-style:none;display:grid;gap:18px;margin:0;padding:0;grid-template-columns:repeat(3,1fr)}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
}
.card-ico{font-size:24px;line-height:1;display:block;margin-bottom:12px}
.card h3{margin:0 0 8px;font-size:16px;letter-spacing:-.01em}
.card p{margin:0;font-size:14.5px;color:var(--muted)}

.more{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;
  text-align:center;margin:26px 0 0;color:var(--ink);font-size:15.5px;
}
.more-badge{
  font-size:14px;font-weight:800;letter-spacing:.01em;
  color:#fff;background:var(--clay);
  padding:5px 13px;border-radius:999px;white-space:nowrap;
}

/* ── Confirmation ─────────────────────────────────────────── */
.merci{padding-block:56px 48px;text-align:center;background:linear-gradient(180deg,#f3f8fe 0%,#ffffff 55%)}
.merci .shell{max-width:660px}
.merci-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:34px 28px;box-shadow:var(--shadow-lg);text-align:left;
}
.merci-badge{
  width:54px;height:54px;border-radius:50%;display:grid;place-items:center;
  font-size:24px;margin:0 auto 18px;
}
.is-ok .merci-badge{background:#e9f6ef;color:#2e7d4f}
.is-wait .merci-badge{background:#fdf5ef;color:var(--clay)}
.merci-card h1{font-size:clamp(22px,4.5vw,30px);text-align:center;margin-bottom:10px}
.merci-card .lead{text-align:center;margin-inline:auto;max-width:46ch;color:var(--muted);font-size:16px}

.recap{margin:26px 0 24px;padding:0;display:grid;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.recap>div{display:flex;justify-content:space-between;gap:16px;padding:12px 16px;border-bottom:1px solid var(--line)}
.recap>div:last-child{border-bottom:none}
.recap dt{margin:0;font-size:13.5px;color:var(--muted)}
.recap dd{margin:0;font-size:14.5px;font-weight:600;text-align:right;word-break:break-word}

.merci-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.merci-card .fine{text-align:center}
.back{margin:24px 0 0;font-size:14px}

/* ── Pied de page ─────────────────────────────────────────── */
.foot{border-top:1px solid var(--line);background:#fff;padding-block:26px 34px}
.foot .shell{max-width:1180px;display:flex;flex-wrap:wrap;gap:18px 32px;justify-content:space-between;align-items:flex-start}
.foot-brand{display:flex;flex-direction:column}
.foot-brand strong{color:var(--clay);font-size:17px;letter-spacing:.01em}
.foot-brand span{font-size:12.5px;color:var(--muted)}
.foot-contact{display:flex;flex-direction:column;gap:2px;font-size:13.5px;color:var(--muted)}
.foot-contact a{color:var(--blue-dark);text-decoration:none}
.foot-contact a:hover{text-decoration:underline}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width:980px){
  .split{grid-template-columns:1fr;gap:32px}
  .split-pitch{max-width:640px}
  .pitch{max-width:none}
  .cards{grid-template-columns:1fr}
}
@media (max-width:640px){
  .topbar .shell{flex-direction:column;align-items:flex-start;gap:4px}
  .topbar-when{text-align:left}
}
@media (max-width:560px){
  .grid{grid-template-columns:1fr}
  .hero{padding-block:36px 44px}
  .signup-card{padding:22px 18px}
  .when{padding:18px 20px}
  .recap>div{flex-direction:column;gap:2px}
  .recap dd{text-align:left}
  .merci-actions .btn{width:100%}
}