/* mettre-en-gras.fr - styles partagés
   Mobile-first, zéro dépendance, optimisé Core Web Vitals */

:root{
  --bg:#ffffff;
  --bg-soft:#f8fafc;
  --text:#0f172a;
  --text-muted:#64748b;
  --text-dim:#94a3b8;
  --border:#e2e8f0;
  --border-strong:#cbd5e1;
  --accent:#f97316;
  --accent-hover:#ea580c;
  --success:#10b981;
  --radius:12px;
  --radius-sm:8px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.55;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

img,svg{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button{font-family:inherit}

.container{max-width:760px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{border-bottom:1px solid var(--border);background:rgba(255,255,255,.95);backdrop-filter:saturate(150%) blur(8px);position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:12px}
.logo{font-weight:700;font-size:17px;color:var(--text);letter-spacing:-0.01em;display:inline-flex;align-items:center;gap:6px}
.logo:hover{text-decoration:none}
.logo b{font-weight:900}
.logo .dot{color:var(--accent)}
.nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.nav a{font-size:13.5px;color:var(--text-muted);font-weight:500}
.nav a:hover{color:var(--text);text-decoration:none}
.nav a[aria-current="page"]{color:var(--text)}
@media(max-width:520px){
  .nav{gap:10px}
  .nav a{font-size:13px}
}

/* Hero */
.hero{padding:32px 0 8px}
h1{font-size:clamp(28px,5.5vw,42px);line-height:1.12;letter-spacing:-0.025em;margin:0 0 14px;font-weight:800}
h1 .accent{color:var(--accent)}
.lead{font-size:clamp(16px,2.5vw,18px);color:var(--text-muted);margin:0 0 20px;max-width:60ch}

/* Input */
.input-wrap{position:sticky;top:60px;z-index:40;background:var(--bg);padding:12px 0 16px;border-bottom:1px solid transparent;transition:border-color .2s}
.input-wrap.stuck{border-bottom-color:var(--border)}
textarea{
  width:100%;
  min-height:96px;
  padding:14px 16px;
  font-size:17px;
  line-height:1.5;
  font-family:inherit;
  border:2px solid var(--border);
  border-radius:var(--radius);
  resize:vertical;
  background:var(--bg-soft);
  color:var(--text);
  transition:border-color .15s,background .15s;
  -webkit-appearance:none;
  appearance:none;
}
textarea:focus{outline:none;border-color:var(--accent);background:var(--bg)}
textarea::placeholder{color:var(--text-dim)}

.toolbar{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-size:13px;color:var(--text-muted)}
.toolbar button{background:none;border:none;color:var(--text-muted);font-size:13px;cursor:pointer;padding:4px 8px;border-radius:6px}
.toolbar button:hover{color:var(--text);background:var(--bg-soft)}

/* Styles grid */
.styles-grid{display:grid;gap:10px;margin-top:8px}
@media(min-width:640px){.styles-grid{grid-template-columns:1fr 1fr}}

.style-card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px 16px;
  background:var(--bg);
  transition:border-color .15s,box-shadow .15s;
  display:flex;flex-direction:column;gap:10px;
}
.style-card:hover{border-color:var(--border-strong)}
.style-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.style-name{font-size:11.5px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.06em}
.style-tag{font-size:10.5px;color:var(--text-dim);padding:2px 6px;border:1px solid var(--border);border-radius:6px;text-transform:uppercase;letter-spacing:0.05em;font-weight:600}
.style-output{
  font-size:17px;
  line-height:1.55;
  word-break:break-word;
  min-height:1.55em;
  color:var(--text);
  padding:0;
}
.style-output.empty{color:var(--text-dim);font-style:italic}
.copy-btn{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  font-size:13.5px;
  font-weight:600;
  background:var(--text);
  color:#fff;
  border:none;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:background .15s,transform .08s;
  -webkit-tap-highlight-color:transparent;
}
.copy-btn:hover{background:#1e293b}
.copy-btn:active{transform:scale(0.97)}
.copy-btn.copied{background:var(--success)}
.copy-btn svg{width:14px;height:14px;flex-shrink:0}

/* Network tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin:32px 0}
.tile{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  color:var(--text);
  font-weight:600;font-size:14.5px;
  background:var(--bg);
  transition:border-color .15s,transform .08s;
}
.tile:hover{border-color:var(--accent);text-decoration:none;color:var(--text)}
.tile-icon{font-size:18px;line-height:1}
.tile[aria-current="page"]{border-color:var(--accent);background:#fff7ed}

/* Sections */
section{margin:40px 0}
h2{font-size:clamp(22px,3.5vw,28px);margin:0 0 14px;letter-spacing:-0.015em;font-weight:700}
h3{font-size:18px;margin:20px 0 6px;font-weight:700}
p{margin:0 0 12px;color:#334155}
ul,ol{margin:0 0 12px;padding-left:22px;color:#334155}
li{margin-bottom:4px}

/* FAQ */
.faq details{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px 16px;
  margin-bottom:8px;
  background:var(--bg);
}
.faq summary{font-weight:600;cursor:pointer;outline:none;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--text)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-weight:400;color:var(--text-muted);font-size:20px;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open]{background:var(--bg-soft)}
.faq details[open] > *:not(summary){margin-top:10px}
.faq p{margin-bottom:8px}

/* Steps */
.steps{counter-reset:step;list-style:none;padding:0;margin:16px 0}
.steps li{counter-increment:step;padding:12px 14px 12px 50px;position:relative;background:var(--bg-soft);border-radius:var(--radius);margin-bottom:8px;color:var(--text)}
.steps li::before{
  content:counter(step);
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;
}

/* Footer */
.site-footer{border-top:1px solid var(--border);margin-top:60px;padding:28px 0 32px;font-size:13.5px;color:var(--text-muted);text-align:center}
.site-footer a{color:var(--text-muted);text-decoration:underline}
.site-footer p{color:var(--text-muted)}

/* Toast */
.toast{
  position:fixed;
  bottom:max(20px,env(safe-area-inset-bottom));
  left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--text);
  color:#fff;
  padding:10px 18px;
  border-radius:999px;
  font-size:14px;font-weight:500;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s,transform .25s;
  box-shadow:0 8px 24px rgba(0,0,0,.18);
  z-index:100;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* Reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}
}