/* =====================================================
   IVTG — Agence marketing digital · Cergy
   Design propre, minimal, beaucoup d'espace, sobre
   ===================================================== */

:root {
  --bg:#ffffff;
  --bg-soft:#fafafa;
  --bg-card:#f6f6f5;
  --border:#ececec;
  --border-strong:#d9d9d9;
  --ink:#0a0a0a;
  --ink-2:#1f1f1f;
  --text:#3a3a3a;
  --mute:#737373;
  --mute-2:#a3a3a3;
  --accent:#0f4f3a;
  --accent-soft:#e4eee9;
  --sans:"Inter","SF Pro Display","Segoe UI",-apple-system,sans-serif;
  --serif:"Newsreader","Source Serif Pro",serif;
  --mono:"JetBrains Mono","SF Mono",monospace;
  --pad:clamp(20px,4vw,80px);
  --max:1280px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  font-weight:400;
  letter-spacing:-0.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .15s ease}

h1,h2,h3,h4,h5{font-family:var(--sans);font-weight:600;color:var(--ink);line-height:1.15;letter-spacing:-0.025em}
h1{font-size:clamp(40px,5.8vw,72px);font-weight:600;letter-spacing:-0.035em}
h2{font-size:clamp(30px,3.8vw,48px);font-weight:600;letter-spacing:-0.025em}
h3{font-size:clamp(20px,2vw,26px);font-weight:600;letter-spacing:-0.015em}
h4{font-size:14px;font-weight:500;letter-spacing:-0.005em;color:var(--ink-2)}

p{color:var(--text)}

em{font-style:italic;font-weight:400;color:var(--accent)}

.container{max-width:var(--max);margin:0 auto}

.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--mute);
  padding:5px 12px;background:var(--bg-soft);border:1px solid var(--border);border-radius:999px;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ===== HEADER ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.85);backdrop-filter:saturate(150%) blur(20px);
  border-bottom:1px solid var(--border);
  padding:14px var(--pad);
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:30px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:17px;letter-spacing:-0.015em}
.brand-mark{
  width:30px;height:30px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:600;font-size:13px;border-radius:8px
}
.brand small{display:block;font-size:11px;font-weight:400;color:var(--mute);margin-top:2px;letter-spacing:0}

.main-nav{display:flex;justify-content:center;gap:32px}
.main-nav a{font-size:14px;font-weight:500;color:var(--mute);padding:6px 0;transition:color .2s ease}
.main-nav a:hover{color:var(--ink)}
.main-nav a.active{color:var(--ink)}

.btn-cta{
  background:var(--ink);color:#fff;
  padding:9px 16px;font-size:13px;font-weight:500;border-radius:8px;
  transition:background .2s ease,transform .15s ease;letter-spacing:-0.005em
}
.btn-cta:hover{background:var(--accent)}

.burger{display:none;background:none;border:none;cursor:pointer;width:36px;height:36px;padding:0;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink);border-radius:2px}
@media(max-width:900px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:24px var(--pad);border-bottom:1px solid var(--border);gap:14px;box-shadow:0 8px 24px rgba(0,0,0,.05)}
  .main-nav.open{display:flex}
  .main-nav a{padding:10px 0;font-size:16px}
  .burger{display:flex}
}

/* ===== HERO ===== */
.hero{
  padding:100px var(--pad) 80px;
  position:relative;
  text-align:center;
}
.hero-inner{max-width:920px;margin:0 auto}
.hero .tag{margin-bottom:24px}
.hero h1{margin-bottom:24px;font-weight:600}
.hero h1 em{color:var(--accent);font-style:italic;font-weight:500}
.hero-lede{
  font-size:clamp(18px,1.6vw,21px);
  color:var(--mute);max-width:62ch;margin:0 auto 36px;
  line-height:1.55;font-weight:400
}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}

.btn-primary{
  background:var(--ink);color:#fff;
  padding:13px 22px;font-size:14px;font-weight:500;border:none;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;border-radius:10px;
  transition:background .2s ease,transform .15s ease;letter-spacing:-0.005em
}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn-ghost{
  background:transparent;color:var(--ink);
  padding:13px 22px;font-size:14px;font-weight:500;border:1px solid var(--border-strong);
  display:inline-flex;align-items:center;gap:8px;border-radius:10px;
  transition:border-color .2s ease,background .2s ease
}
.btn-ghost:hover{border-color:var(--ink);background:var(--bg-soft)}

/* ====== PRICE CARD (inline) ====== */
.hero-grid{margin-top:0}
.hero-card{display:none}
.hero-top{display:none}

/* ===== KPI / chiffres clés ===== */
.kpis{
  max-width:var(--max);margin:60px auto 0;
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.kpi{
  padding:36px 24px;text-align:center;
  border-right:1px solid var(--border);
}
.kpi:last-child{border-right:none}
.kpi .num{font-size:36px;font-weight:600;color:var(--ink);letter-spacing:-0.03em;display:block;margin-bottom:6px}
.kpi .num sup{font-size:.4em;color:var(--accent);font-weight:500;margin-left:4px}
.kpi .lbl{font-size:13px;color:var(--mute);font-weight:400}
@media(max-width:800px){.kpis{grid-template-columns:1fr 1fr}.kpi{border-bottom:1px solid var(--border)}.kpi:nth-child(2){border-right:none}}

/* ===== MARQUEE ===== */
.marquee{display:none}

/* ===== SECTIONS ===== */
section.block{padding:clamp(80px,10vh,140px) var(--pad)}

.section-head{
  max-width:var(--max);margin:0 auto 60px;
  text-align:center;
}
.section-head .num{display:none}
.section-head h2{margin-top:14px;max-width:22ch;margin-left:auto;margin-right:auto}
.section-head .desc{
  font-size:17px;color:var(--mute);max-width:60ch;margin:18px auto 0;line-height:1.6
}

/* ===== MANIFESTE ===== */
.manifesto{
  padding:clamp(80px,12vh,140px) var(--pad);
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start
}
.manifesto-left h2{font-size:clamp(28px,3.4vw,40px);font-weight:600;letter-spacing:-0.025em}
.manifesto-left h2 em{color:var(--accent)}
.manifesto-right{font-size:17px;line-height:1.7;color:var(--text);font-weight:400}
.manifesto-right p{margin-bottom:18px}
.manifesto-right p em{color:var(--accent);font-style:italic;font-weight:500}
@media(max-width:900px){.manifesto{grid-template-columns:1fr;gap:30px}}

/* ===== SHOWCASE ===== */
.showcase{padding:clamp(80px,10vh,120px) var(--pad);max-width:var(--max);margin:0 auto}
.showcase-head{text-align:center;margin-bottom:48px}
.showcase-head h2{font-size:clamp(28px,3.6vw,44px);margin-bottom:14px;letter-spacing:-0.025em}
.showcase-head h2 em{color:var(--accent)}
.showcase-head .desc{font-size:16px;color:var(--mute);max-width:56ch;margin:0 auto;line-height:1.6}

.showcase-filters{
  display:flex;flex-wrap:wrap;gap:6px;justify-content:center;
  margin-bottom:48px;
}
.showcase-filters button{
  background:transparent;color:var(--text);
  padding:7px 14px;font-size:13px;font-weight:500;
  border:1px solid var(--border);border-radius:999px;
  cursor:pointer;transition:all .15s ease;letter-spacing:-0.005em
}
.showcase-filters button:hover{border-color:var(--ink);color:var(--ink)}
.showcase-filters button.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}

.tpl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:1000px){.tpl-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.tpl-grid{grid-template-columns:1fr}}

.tpl-card{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  overflow:hidden;display:flex;flex-direction:column;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-decoration:none;color:inherit;
}
.tpl-card:hover{
  transform:translateY(-3px);
  border-color:var(--border-strong);
  box-shadow:0 12px 30px -10px rgba(0,0,0,.08)
}
.tpl-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-card);position:relative}
.tpl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tpl-card:hover .tpl-thumb img{transform:scale(1.03)}
.tpl-num{display:none}
.tpl-info{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.tpl-info .cat{font-size:12px;color:var(--mute);font-weight:500;margin-bottom:8px}
.tpl-info h3{font-size:18px;font-weight:600;margin-bottom:6px;letter-spacing:-0.015em}
.tpl-info p{font-size:14px;color:var(--mute);line-height:1.5;margin-bottom:14px;flex:1}
.tpl-info .meta{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:14px;border-top:1px solid var(--border);
  font-size:12px;color:var(--mute)
}
.tpl-info .meta .open{color:var(--accent);font-weight:500;display:inline-flex;align-items:center;gap:5px}
.tpl-info .meta .open::after{content:"→";transition:transform .2s ease}
.tpl-card:hover .meta .open::after{transform:translateX(3px)}
.tpl-card.is-hidden{display:none}

/* ===== PROCESS ===== */
.process{padding:clamp(80px,10vh,120px) var(--pad);background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.process-inner{max-width:var(--max);margin:0 auto}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:50px}
.proc-step{
  background:#fff;padding:28px;border:1px solid var(--border);border-radius:14px;
  display:flex;flex-direction:column;
}
.proc-step .n{
  width:30px;height:30px;background:var(--accent-soft);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;border-radius:8px;
  font-size:13px;font-weight:600;margin-bottom:18px
}
.proc-step h4{font-size:17px;margin-bottom:6px;font-weight:600;color:var(--ink)}
.proc-step p{font-size:14px;color:var(--mute);line-height:1.5;flex:1}
.proc-step .delay{font-size:11px;color:var(--mute-2);font-weight:500;margin-top:14px;display:block;letter-spacing:0.04em;text-transform:uppercase}
@media(max-width:900px){.process-grid{grid-template-columns:1fr 1fr}}
@media(max-width:500px){.process-grid{grid-template-columns:1fr}}

/* ===== PRICING ===== */
.pricing{padding:clamp(80px,10vh,120px) var(--pad);max-width:var(--max);margin:0 auto}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px}
.pri-card{
  background:#fff;border:1px solid var(--border);border-radius:16px;padding:32px 28px;
  position:relative;display:flex;flex-direction:column;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease
}
.pri-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px -12px rgba(0,0,0,.06)}
.pri-card.featured{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink),0 12px 30px -10px rgba(0,0,0,.1)}
.pri-card.featured::before{
  content:"LE PLUS DEMANDÉ";position:absolute;top:-11px;left:24px;
  background:var(--ink);color:#fff;font-size:10px;font-weight:600;letter-spacing:0.1em;
  padding:5px 10px;border-radius:6px
}
.pri-card .name{font-size:12px;color:var(--mute);font-weight:500;letter-spacing:0.06em;text-transform:uppercase;margin-bottom:14px}
.pri-card .price{font-size:44px;font-weight:600;color:var(--ink);letter-spacing:-0.035em;display:flex;align-items:baseline;gap:6px;margin-bottom:4px}
.pri-card .price small{font-size:14px;color:var(--mute);font-weight:400;letter-spacing:0}
.pri-card .when{font-size:11px;color:var(--accent);font-weight:500;letter-spacing:0.06em;text-transform:uppercase;margin-bottom:22px;display:block}
.pri-card ul{list-style:none;display:grid;gap:10px;flex:1;padding-top:18px;border-top:1px solid var(--border);margin-bottom:22px}
.pri-card li{padding-left:24px;position:relative;font-size:14px;color:var(--text);line-height:1.5}
.pri-card li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%230f4f3a' stroke-width='2'%3E%3Cpath d='M2.5 6.5l2 2 5-5'/%3E%3C/svg%3E") center/9px no-repeat
}
.pri-card .btn-primary{margin-top:auto;justify-content:center}
@media(max-width:900px){.pricing-grid{grid-template-columns:1fr;gap:24px}}

/* ===== FAQ ===== */
.faq{padding:clamp(80px,10vh,120px) var(--pad);max-width:880px;margin:0 auto}
.faq-list{margin-top:40px}
.faq-item{border-top:1px solid var(--border);padding:20px 0}
.faq-item:last-child{border-bottom:1px solid var(--border)}
.faq-item summary{
  cursor:pointer;font-size:17px;font-weight:500;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:24px;list-style:none;
  letter-spacing:-0.015em;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--mute);font-size:22px;font-weight:300;transition:transform .2s ease;
  width:24px;height:24px;display:flex;align-items:center;justify-content:center
}
.faq-item[open] summary::after{content:"−";color:var(--accent)}
.faq-item p{margin-top:14px;color:var(--mute);font-size:15px;line-height:1.65;max-width:62ch}
.faq-item a{color:var(--accent);font-weight:500}

/* ===== CTA FINAL ===== */
.cta-final{
  padding:clamp(80px,10vh,140px) var(--pad);
  text-align:center;background:var(--bg-soft);border-top:1px solid var(--border)
}
.cta-final h2{margin-bottom:18px;font-size:clamp(32px,4.2vw,52px);letter-spacing:-0.03em}
.cta-final h2 em{color:var(--accent)}
.cta-final p{font-size:17px;color:var(--mute);margin-bottom:32px;max-width:50ch;margin-left:auto;margin-right:auto;line-height:1.55}

/* ===== PAGES HEADERS ===== */
.page-hero{
  padding:80px var(--pad) 60px;
  text-align:center;
  border-bottom:1px solid var(--border)
}
.page-hero .tag{margin-bottom:20px}
.page-hero h1{margin-bottom:18px;max-width:18ch;margin-left:auto;margin-right:auto}
.page-hero h1 em{color:var(--accent)}
.page-hero p{font-size:18px;color:var(--mute);max-width:60ch;margin:0 auto;line-height:1.55}

/* ===== CONTACT ===== */
.contact-page{
  padding:80px var(--pad);max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1fr 1.4fr;gap:50px
}
.contact-info{padding:8px 0}
.contact-info .row{padding:18px 0;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:4px}
.contact-info .row:last-child{border-bottom:1px solid var(--border)}
.contact-info .lbl{font-size:11px;color:var(--mute);font-weight:500;letter-spacing:0.08em;text-transform:uppercase}
.contact-info .val{font-size:17px;font-weight:500;color:var(--ink);letter-spacing:-0.015em}
.contact-info .val a{color:var(--ink)}
.contact-info .val a:hover{color:var(--accent)}

.contact-form{
  background:#fff;border:1px solid var(--border);border-radius:16px;padding:32px;
}
.contact-form h3{margin-bottom:20px;font-size:22px;font-weight:600}
.contact-form label{
  display:block;font-size:13px;font-weight:500;color:var(--ink-2);
  margin-bottom:6px;letter-spacing:-0.005em
}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;padding:11px 14px;background:#fff;
  border:1px solid var(--border);color:var(--ink);font-family:var(--sans);
  font-size:15px;outline:none;border-radius:10px;
  transition:border-color .15s ease,box-shadow .15s ease;margin-bottom:16px
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  border-color:var(--ink);box-shadow:0 0 0 3px rgba(10,10,10,.05)
}
.contact-form textarea{min-height:120px;resize:vertical;font-family:var(--sans)}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:800px){.contact-page{grid-template-columns:1fr}.contact-form .row{grid-template-columns:1fr}}

/* ===== FOOTER ===== */
.site-footer{
  padding:60px var(--pad) 24px;
  background:#fff;border-top:1px solid var(--border)
}
.footer-top{
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--border)
}
.footer-brand .brand{font-size:18px;margin-bottom:12px}
.footer-brand p{color:var(--mute);max-width:36ch;font-size:13px;line-height:1.6}
.footer-col h4{color:var(--ink-2);margin-bottom:14px;font-size:13px;font-weight:600}
.footer-col a,.footer-col span{display:block;padding:4px 0;color:var(--mute);font-size:13px}
.footer-col a:hover{color:var(--ink)}
.footer-legal{
  max-width:var(--max);margin:20px auto 0;
  padding-top:20px;font-size:11px;color:var(--mute-2);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap
}
.footer-legal a:hover{color:var(--ink)}
@media(max-width:800px){.footer-top{grid-template-columns:1fr 1fr}.footer-legal{flex-direction:column;gap:6px;text-align:center}}

/* ===== SERVICES (accueil) ===== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:var(--max);margin:0 auto}
.serv-card{
  background:#fff;border:1px solid var(--border);border-radius:16px;padding:32px 28px;
  display:flex;flex-direction:column;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease
}
.serv-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px -12px rgba(0,0,0,.06)}
.serv-card .serv-num{font-size:13px;color:var(--accent);font-weight:600;letter-spacing:0.08em;margin-bottom:18px;font-family:var(--mono)}
.serv-card h3{font-size:20px;margin-bottom:10px;font-weight:600;letter-spacing:-0.015em}
.serv-card > p{font-size:15px;color:var(--mute);line-height:1.6;margin-bottom:18px}
.serv-list{list-style:none;padding-top:18px;border-top:1px solid var(--border);margin-bottom:24px;display:grid;gap:8px;flex:1}
.serv-list li{padding-left:22px;position:relative;font-size:14px;color:var(--text);line-height:1.5}
.serv-list li::before{content:"";position:absolute;left:0;top:6px;width:12px;height:12px;border-radius:50%;background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%230f4f3a' stroke-width='2.4'%3E%3Cpath d='M2.5 6l2.5 2.5 4.5-5'/%3E%3C/svg%3E") center/9px no-repeat}
.serv-link{color:var(--accent);font-size:14px;font-weight:500;margin-top:auto;display:inline-flex;align-items:center;gap:6px;letter-spacing:-0.005em;transition:gap .2s ease}
.serv-link:hover{gap:10px}
@media(max-width:900px){.services-grid{grid-template-columns:1fr;gap:18px}}

/* ===== COMPARE (accueil) ===== */
.compare-grid{max-width:var(--max);margin:0 auto;display:grid;gap:14px}
.compare-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.compare-cell{padding:24px 28px;border-radius:14px;border:1px solid var(--border)}
.compare-cell .cell-label{font-size:11px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:10px;display:block}
.compare-cell p{font-size:15px;line-height:1.55;color:var(--text)}
.compare-cell.ko{background:#fafafa;color:var(--mute)}
.compare-cell.ko .cell-label{color:var(--mute-2)}
.compare-cell.ko p{color:var(--mute)}
.compare-cell.ko::before{content:"✕";display:inline-block;width:24px;height:24px;background:#fee2e2;color:#dc2626;border-radius:50%;text-align:center;line-height:24px;font-weight:600;margin-right:10px;float:left;margin-top:-2px;font-size:13px}
.compare-cell.ok{background:var(--accent-soft);border-color:var(--accent);color:var(--ink)}
.compare-cell.ok .cell-label{color:var(--accent)}
.compare-cell.ok p{color:var(--ink)}
.compare-cell.ok p strong{color:var(--accent-strong);font-weight:600}
.compare-cell.ok::before{content:"✓";display:inline-block;width:24px;height:24px;background:var(--accent);color:#fff;border-radius:50%;text-align:center;line-height:24px;font-weight:600;margin-right:10px;float:left;margin-top:-2px;font-size:13px}
@media(max-width:700px){.compare-row{grid-template-columns:1fr;gap:10px}}

/* ===== TRI + filtres (page réalisations) ===== */
.realisations-bar{
  max-width:var(--max);margin:0 auto 40px;
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:start;padding-bottom:24px;border-bottom:1px solid var(--border)
}
.realisations-sort{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--mute);white-space:nowrap}
.realisations-sort select{
  background:#fff;border:1px solid var(--border);padding:8px 12px;font-family:var(--sans);font-size:13px;color:var(--ink);border-radius:8px;cursor:pointer;outline:none;transition:border-color .15s ease
}
.realisations-sort select:hover,.realisations-sort select:focus{border-color:var(--ink)}
.realisations-bar .showcase-filters{margin:0;padding:0;border:none;justify-content:flex-start}
@media(max-width:700px){.realisations-bar{grid-template-columns:1fr}}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s cubic-bezier(.16,1,.3,1)}
.reveal.is-visible{opacity:1;transform:translateY(0)}
.reveal[data-delay="1"]{transition-delay:.05s}
.reveal[data-delay="2"]{transition-delay:.1s}
.reveal[data-delay="3"]{transition-delay:.15s}