/* ============================================================
   speaker-ia.fr — Design system « Clair / salle éclairée »
   Fond clair #f7f9fc · surfaces blanches · texte #0f1b2d
   Accent cyan #0891b2 + indigo #4f46e5 · Space Grotesk + Inter
   ============================================================ */
:root{
  --bg:#f7f9fc; --bg-2:#eef2f8; --surface:#ffffff; --surface-2:#f1f5fa;
  --line:rgba(15,27,45,.09); --line-2:rgba(15,27,45,.16);
  --accent:#0891b2; --accent-dk:#0e7490; --accent-2:#4f46e5; --accent-2-dk:#4338ca;
  --text:#0f1b2d; --ink:#0a1526; --muted:#51617a; --muted-2:#8595ab;
  --ok:#059669; --warn:#b45309;
  --glow:0 10px 30px -10px rgba(8,145,178,.45);
  --shadow:0 12px 34px -16px rgba(20,40,80,.22);
  --shadow-sm:0 6px 18px -10px rgba(20,40,80,.18);
  --radius:16px; --radius-sm:11px; --maxw:1180px;
  --ff-title:"Space Grotesk",system-ui,sans-serif;
  --ff-body:"Inter",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--ff-body);background:var(--bg);color:var(--text);
  line-height:1.65;font-size:17px;overflow-x:hidden;
  background-image:radial-gradient(1100px 560px at 82% -10%,rgba(8,145,178,.08),transparent 60%),
                   radial-gradient(820px 460px at 4% 4%,rgba(79,70,229,.06),transparent 55%);
  background-attachment:fixed;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--ff-title);font-weight:600;line-height:1.12;letter-spacing:-.02em;color:var(--ink)}
h1{font-size:clamp(2.1rem,5vw,3.5rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
h3{font-size:1.25rem}
em{font-style:normal;color:var(--accent)}
strong{color:var(--ink);font-weight:600}
p{color:var(--muted)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.accent{color:var(--accent)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--ff-title);
  font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--accent),transparent);border-radius:2px}
.sec{padding:104px 0}
.sec-sm{padding:74px 0}
.lead{font-size:1.18rem;color:var(--text);max-width:62ch}
.muted{color:var(--muted)}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--ff-title);font-weight:600;
  font-size:.98rem;padding:14px 26px;border-radius:100px;cursor:pointer;border:1px solid transparent;
  transition:.25s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-ghost{border-color:var(--line-2);color:var(--text);background:#fff}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);background:rgba(8,145,178,.06)}
.btn-sm{padding:10px 18px;font-size:.9rem}

/* ---------- Header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s;
  padding:18px 0;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(255,255,255,.82);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);padding:11px 0;box-shadow:0 6px 24px -18px rgba(20,40,80,.5)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--ff-title);font-weight:700;font-size:1.24rem;letter-spacing:-.02em;color:var(--ink)}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px rgba(8,145,178,.6);flex:0 0 auto}
.brand b{color:var(--accent);font-weight:700}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{font-size:.96rem;color:var(--muted);font-weight:500;transition:.2s;position:relative}
.nav-links a:hover{color:var(--text)}
.nav-links a.cta{color:#fff}
.nav-toggle{display:none;background:none;border:0;color:var(--text);cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;padding:172px 0 96px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;-webkit-mask-image:radial-gradient(900px 500px at 72% 20%,#000,transparent 75%);
          mask-image:radial-gradient(900px 500px at 72% 20%,#000,transparent 75%);opacity:.6}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{margin-bottom:22px}
.hero h1 em{color:var(--accent);position:relative}
.hero .lead{margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap}
.hero-stats .st b{font-family:var(--ff-title);font-size:1.9rem;color:var(--ink);display:block;line-height:1}
.hero-stats .st span{font-size:.85rem;color:var(--muted)}
/* halo visuel droit */
.hero-visual{position:relative;aspect-ratio:1;border-radius:24px;
  background:radial-gradient(circle at 50% 40%,rgba(8,145,178,.14),transparent 62%),var(--surface);
  border:1px solid var(--line);display:grid;place-items:center;overflow:hidden;box-shadow:var(--shadow)}
.hero-visual::after{content:"";position:absolute;width:150%;height:150%;
  background:conic-gradient(from 0deg,transparent,rgba(79,70,229,.12),transparent 40%);animation:spin 14s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-visual img{position:relative;z-index:1;width:90%;height:auto}

/* ---------- Tuiles rôles ---------- */
.roles-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.role-tile{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:.28s;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.role-tile::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));transform:scaleX(0);transform-origin:left;transition:.3s}
.role-tile:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow)}
.role-tile:hover::before{transform:scaleX(1)}
.role-tile .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:rgba(8,145,178,.1);border:1px solid rgba(8,145,178,.22);margin-bottom:16px;font-size:1.4rem}
.role-tile .arrow{margin-top:14px;color:var(--accent);font-family:var(--ff-title);font-size:.9rem;font-weight:600;display:inline-flex;gap:6px;transition:.2s}
.role-tile:hover .arrow{gap:12px}

/* ---------- Grille speakers ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 36px}
.chip{font-family:var(--ff-title);font-size:.9rem;font-weight:500;padding:9px 18px;border-radius:100px;
  border:1px solid var(--line-2);color:var(--muted);background:#fff;cursor:pointer;transition:.2s}
.chip:hover{color:var(--text);border-color:var(--accent)}
.chip.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.speakers-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sp-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:.28s;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.sp-card:hover{transform:translateY(-5px);border-color:rgba(8,145,178,.4);box-shadow:0 18px 44px -20px rgba(8,145,178,.4)}
.sp-photo{position:relative;aspect-ratio:1;overflow:hidden;background:var(--surface-2)}
.sp-photo img{width:100%;height:100%;object-fit:cover;transition:.4s}
.sp-card:hover .sp-photo img{transform:scale(1.05)}
.sp-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(15,27,45,.28),transparent 42%)}
.sp-badge-pub{position:absolute;top:12px;left:12px;z-index:2;font-family:var(--ff-title);font-size:.68rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;padding:5px 11px;border-radius:100px;
  background:rgba(79,70,229,.12);border:1px solid rgba(79,70,229,.35);color:var(--accent-2);backdrop-filter:blur(6px)}
.sp-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.sp-name{font-family:var(--ff-title);font-size:1.28rem;font-weight:600;color:var(--ink);margin-bottom:4px}
.sp-role{font-size:.9rem;color:var(--accent-dk);margin-bottom:14px;min-height:2.6em}
.sp-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.sp-tag{font-family:var(--ff-title);font-size:.72rem;font-weight:500;padding:4px 10px;border-radius:7px;
  background:rgba(8,145,178,.08);border:1px solid rgba(8,145,178,.2);color:var(--accent-dk)}
.sp-tag.off{opacity:.5;background:transparent;border-color:var(--line);color:var(--muted-2);text-decoration:line-through}

/* ---------- Fiche speaker ---------- */
.fiche-hero{padding:150px 0 60px;position:relative}
.fiche-grid{display:grid;grid-template-columns:320px 1fr;gap:46px;align-items:start}
.fiche-photo{position:sticky;top:100px}
.fiche-photo img{border-radius:20px;border:1px solid var(--line-2);width:100%;height:auto;aspect-ratio:1;object-fit:cover;box-shadow:var(--shadow)}
.fiche-photo .credit{font-size:.74rem;color:var(--muted-2);margin-top:10px;line-height:1.4}
.fiche-loc{margin-top:16px;font-size:.9rem;color:var(--muted);display:flex;align-items:center;gap:8px}
.fiche-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.badges-cas{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 30px}
.cas-badge{display:inline-flex;align-items:center;gap:9px;font-family:var(--ff-title);font-weight:600;font-size:.92rem;
  padding:10px 16px;border-radius:100px;background:rgba(8,145,178,.1);border:1px solid rgba(8,145,178,.3);color:var(--accent-dk)}
.cas-badge .tick{width:18px;height:18px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:.7rem;font-weight:700}
.cas-badge.off{background:var(--surface-2);border-color:var(--line);color:var(--muted-2);opacity:.75}
.cas-badge.off .tick{background:var(--muted-2);color:#fff}
.fiche-section{margin-top:38px}
.role-detail{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius-sm);padding:22px 24px;margin-bottom:16px;box-shadow:var(--shadow-sm)}
.role-detail .rd-role{font-family:var(--ff-title);font-weight:600;color:var(--ink);font-size:1.05rem;margin-bottom:7px;display:flex;align-items:center;gap:9px}
.chips-static{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chips-static span{font-family:var(--ff-title);font-size:.8rem;padding:6px 13px;border-radius:8px;
  background:var(--surface-2);border:1px solid var(--line);color:var(--muted)}
.hl-list{list-style:none;display:grid;gap:11px;margin-top:8px}
.hl-list li{padding-left:28px;position:relative;color:var(--text)}
.hl-list li::before{content:"›";position:absolute;left:6px;color:var(--accent);font-weight:700;font-size:1.2rem;line-height:1}

/* ---------- Sections éditoriales ---------- */
.sec-head{max-width:64ch;margin-bottom:40px}
.sec-head p{margin-top:14px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;transition:.25s;box-shadow:var(--shadow-sm)}
.card:hover{border-color:var(--line-2);transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ic{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;background:rgba(79,70,229,.1);
  border:1px solid rgba(79,70,229,.22);margin-bottom:16px;font-size:1.3rem}
.card p{font-size:.97rem}
.card .more{display:inline-block;margin-top:14px;color:var(--accent);font-family:var(--ff-title);font-weight:600;font-size:.9rem}

/* étapes */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:st}
.step{position:relative;padding:26px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.step::before{counter-increment:st;content:"0" counter(st);font-family:var(--ff-title);font-weight:700;font-size:1.5rem;
  color:var(--accent);opacity:.9;display:block;margin-bottom:12px}
.step p{font-size:.94rem}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden}
.cta-inner{background:linear-gradient(135deg,#eef4ff,#e6fbfe);border:1px solid var(--line-2);
  border-radius:26px;padding:56px 52px;text-align:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.cta-inner::before{content:"";position:absolute;inset:0;background:radial-gradient(560px 280px at 50% -20%,rgba(8,145,178,.16),transparent 70%)}
.cta-inner>*{position:relative}
.cta-band p{max-width:56ch;margin:0 auto 26px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;background:var(--surface);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item summary{cursor:pointer;padding:20px 24px;font-family:var(--ff-title);font-weight:600;color:var(--ink);font-size:1.05rem;
  list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:1.5rem;transition:.2s;flex:0 0 auto}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 24px 22px;color:var(--muted)}
.faq-item .faq-a a{color:var(--accent-dk);text-decoration:underline;text-underline-offset:2px}

/* ---------- Formulaire ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-family:var(--ff-title);font-size:.85rem;font-weight:500;color:var(--text)}
.field input,.field select,.field textarea{background:#fff;border:1px solid var(--line-2);border-radius:11px;
  padding:13px 15px;color:var(--text);font-family:var(--ff-body);font-size:.98rem;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(8,145,178,.15)}
.field textarea{resize:vertical;min-height:120px}
.form-note{font-size:.9rem;margin-top:14px}
.hp{position:absolute;left:-9999px}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px}
.footer-grid h3,.footer-grid .foot-title{font-family:var(--ff-title);font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:18px;font-weight:600}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.rel-card{display:flex;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px;transition:.2s;box-shadow:var(--shadow-sm)}
.rel-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.rel-card img{width:52px;height:52px;border-radius:10px;object-fit:cover;flex:0 0 auto}
.rel-card b{font-family:var(--ff-title);color:var(--ink);font-size:.95rem;display:block}
.rel-card span{font-size:.8rem;color:var(--muted)}
@media(max-width:640px){.related-grid{grid-template-columns:1fr}}
.footer-about p{font-size:.94rem;margin-top:14px}
.footer-grid ul{list-style:none;display:grid;gap:10px}
.footer-grid a{color:var(--muted);font-size:.94rem;transition:.2s}
.footer-grid a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.85rem;color:var(--muted-2)}
.footer-bottom a{color:var(--muted)}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:.86rem;color:var(--muted-2);margin-bottom:20px;display:flex;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Prose ---------- */
.prose p{margin-bottom:16px;color:var(--muted)}
.prose p strong{color:var(--text)}

/* ---------- Blog / article ---------- */
.article-hero{padding:148px 0 20px}
.article-hero .wrap{max-width:820px}
.article-meta{display:flex;gap:10px 18px;flex-wrap:wrap;align-items:center;margin-top:18px;font-size:.9rem;color:var(--muted)}
.article-meta .byline{font-family:var(--ff-title);color:var(--text);font-weight:600}
.article-meta a{color:var(--accent-dk)}
.article-cover{max-width:820px;margin:26px auto 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.article-cover img{width:100%;height:auto;display:block}
.article-body{max-width:760px;margin:0 auto}
.article-body h2{font-size:clamp(1.5rem,3vw,2rem);margin:46px 0 14px}
.article-body h3{font-size:1.2rem;margin:30px 0 10px;color:var(--ink)}
.article-body p{margin-bottom:16px;color:var(--muted)}
.article-body p strong{color:var(--text)}
.article-body ul{margin:0 0 18px;padding-left:22px;color:var(--muted)}
.article-body li{margin-bottom:9px}
.article-body a{color:var(--accent-dk);text-decoration:underline;text-underline-offset:2px}
.takeaways{background:linear-gradient(135deg,#eef4ff,#e6fbfe);border:1px solid var(--line-2);border-radius:var(--radius);padding:24px 28px;margin:8px 0 36px}
.takeaways .tk-title{font-family:var(--ff-title);font-weight:600;color:var(--ink);font-size:1.05rem;margin-bottom:12px;display:flex;align-items:center;gap:9px}
.takeaways ul{list-style:none;display:grid;gap:10px;padding:0;margin:0}
.takeaways li{padding-left:28px;position:relative;color:var(--text)}
.takeaways li::before{content:"✓";position:absolute;left:4px;color:var(--accent);font-weight:700}
.article-cta{max-width:760px;margin:40px auto 0}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.blog-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;box-shadow:var(--shadow-sm)}
.blog-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow)}
.blog-card .bc-cover{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.blog-card .bc-cover img{width:100%;height:100%;object-fit:cover}
.blog-card .bc-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.blog-card .bc-cat{font-family:var(--ff-title);font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-dk);margin-bottom:10px}
.blog-card p{font-size:.96rem;margin-bottom:14px}
.blog-card .more{margin-top:auto;color:var(--accent);font-family:var(--ff-title);font-weight:600;font-size:.9rem}
@media(max-width:960px){.blog-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.blog-grid{grid-template-columns:1fr}}

/* ============================================================
   Titres stylés NON-Hn — anti-surbalisage (cahier §5.4)
   ============================================================ */
.card-title,.step-title,.sect-title,.term-name,.badge-title,.cta-title,.sec-title{
  font-family:var(--ff-title);font-weight:600;line-height:1.14;letter-spacing:-.02em;color:var(--ink)}
.card .card-title{font-size:1.26rem;margin-bottom:10px}
.step .step-title{font-size:1.08rem;margin-bottom:8px}
.role-tile .card-title{font-size:1.18rem;margin-bottom:8px}
.sec-title{font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.12;margin-bottom:8px;display:block}
.cta-title{font-size:clamp(1.7rem,3.4vw,2.6rem);line-height:1.12;margin-bottom:16px}
.term-name{font-size:1.08rem;margin-bottom:8px}
.card-title em,.step-title em,.sec-title em,.cta-title em{color:var(--accent);font-style:normal}

/* ============================================================
   Responsive
   ============================================================ */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{max-width:360px}
  .roles-grid{grid-template-columns:repeat(2,1fr)}
  .speakers-grid{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .fiche-grid{grid-template-columns:1fr}
  .fiche-photo{position:static;max-width:320px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:16px}
  .sec{padding:72px 0}
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(80vw,320px);background:#fff;
    flex-direction:column;align-items:flex-start;padding:96px 30px;gap:22px;transform:translateX(100%);
    transition:.3s;border-left:1px solid var(--line);z-index:99;box-shadow:-20px 0 50px -20px rgba(20,40,80,.3)}
  .nav-links.open{transform:none}
  .nav-links a.cta{color:#fff}
  .nav-toggle{display:flex;z-index:100}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .roles-grid,.speakers-grid,.cards,.steps,.form-grid,.footer-grid{grid-template-columns:1fr}
  .cta-inner{padding:40px 24px}
}