/* AYNEHA - feuille de style partagée
   Thème combiné : palette nuit indigo / or / rouille (maquette A)
   + typographie et gabarit studio numérique (maquette C)
   Typo : Space Grotesk (titres) + IBM Plex Mono (labels techniques) */

:root{
  --indigo-950:#0b1526;
  --indigo-900:#101b30;
  --indigo-800:#182642;
  --indigo-700:#22355a;
  --sand:#f1e8d8;
  --sand-dim:#d9cdb4;
  --gold:#c6912f;
  --gold-bright:#e0ac47;
  --rust:#9a4b2e;
  --line:rgba(241,232,216,0.14);
  --radius:14px;
  --max:1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--indigo-900);
  color:var(--sand);
  font-family:"Space Grotesk", system-ui, sans-serif;
  font-size:15px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:"Space Grotesk", system-ui, sans-serif;
  font-weight:600;
  line-height:1.15;
  margin:0 0 0.5em;
  letter-spacing:-0.01em;
}
p{margin:0 0 1em;color:var(--sand-dim);font-size:0.94rem;}
.mono{font-family:"IBM Plex Mono", monospace;}
.creator-name{color:#D2794C;}
a{color:var(--gold-bright);text-decoration:none;}
a:hover{text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--gold-bright);
  outline-offset:3px;
}
img{max-width:100%;display:block;}
.container{max-width:var(--max);margin:0 auto;padding:0 24px;}

/* motif signature : grille de points façon points de code U+E000..U+E061,
   discret, texture plutôt que décor gratuit */
.glyph-grid{
  position:absolute;inset:0;
  background-image:radial-gradient(circle, rgba(198,145,47,0.35) 1px, transparent 1.4px);
  background-size:22px 22px;
  mask-image:linear-gradient(to bottom, black, transparent 85%);
  opacity:0.5;
  pointer-events:none;
}

/* Header / nav */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(11,21,38,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;max-width:var(--max);margin:0 auto;
}
.brand{
  display:flex;align-items:baseline;gap:10px;
  font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:1.15rem;color:var(--sand);
}
.brand small{font-family:"IBM Plex Mono",monospace;font-size:0.58rem;letter-spacing:0.1em;
  text-transform:uppercase;color:var(--gold-bright);}
.nav-links{display:flex;gap:6px;list-style:none;margin:0;padding:0;}
.nav-links a{
  color:var(--sand-dim);padding:7px 13px;border-radius:8px;font-size:0.85rem;
  transition:background .15s,color .15s;
}
.nav-links a:hover,.nav-links a.active{
  background:var(--indigo-700);color:var(--sand);text-decoration:none;
}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;
  color:var(--sand);padding:8px 10px;font-size:1.1rem;}

@media (max-width:760px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;
    background:var(--indigo-950);border-bottom:1px solid var(--line);
    padding:10px 24px 18px;gap:2px;display:none;
  }
  .nav-links.open{display:flex;}
  .nav-toggle{display:block;}
}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 52px;border-bottom:1px solid var(--line);}
.hero .container{position:relative;z-index:1;}
.eyebrow{
  display:inline-block;color:var(--gold-bright);font-size:0.7rem;letter-spacing:0.12em;
  text-transform:uppercase;margin-bottom:16px;
}
.hero h1{font-size:clamp(2rem,4.6vw,3.2rem);color:var(--sand);max-width:16ch;font-weight:600;}
.hero .lede{font-size:0.98rem;max-width:46ch;color:var(--sand-dim);}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px;}

/* En-tête en deux colonnes : titre à gauche, texte + actions à droite */
.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:center;}
.hero-side{padding-top:4px;}
@media (max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:18px;}
  .hero .lede{max-width:none;}
}
.readout{
  display:inline-block;margin-top:20px;padding:9px 14px;border:1px solid var(--line);
  border-radius:8px;font-size:0.74rem;color:var(--gold-bright);background:var(--indigo-800);
}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:8px;font-size:0.85rem;font-weight:600;
  border:1px solid transparent;transition:transform .15s, background .15s, border-color .15s;
}
.btn:hover{transform:translateY(-1px);text-decoration:none;}
.btn-gold{background:var(--gold);color:var(--indigo-950);}
.btn-gold:hover{background:var(--gold-bright);}
.btn-outline{border-color:var(--line);color:var(--sand);}
.btn-outline:hover{border-color:var(--gold-bright);color:var(--gold-bright);}

/* Section / cards */
section{padding:48px 0;}
.section-head{max-width:60ch;margin-bottom:28px;}
.section-head h2{font-size:clamp(1.4rem,2.8vw,1.8rem);color:var(--sand);}
.tag{
  display:inline-block;font-size:0.66rem;letter-spacing:0.1em;text-transform:uppercase;
  color:var(--gold-bright);background:rgba(198,145,47,0.1);padding:4px 10px;border-radius:6px;
  margin-bottom:10px;
}

.grid{display:grid;gap:14px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:820px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

.card{
  display:block;color:inherit;
  background:var(--indigo-800);border:1px solid var(--line);border-radius:10px;
  padding:18px;transition:border-color .15s, transform .15s;
}
.card:hover{border-color:rgba(198,145,47,0.45);transform:translateY(-2px);text-decoration:none;}
.card h3{color:var(--sand);font-size:1rem;margin-bottom:6px;}
.card p{margin-bottom:0;font-size:0.85rem;}
.card .go{display:inline-block;margin-top:12px;font-size:0.78rem;font-weight:600;color:var(--gold-bright);}
.card-tag{
  display:inline-block;font-size:0.62rem;color:var(--gold-bright);letter-spacing:0.06em;
  margin-bottom:8px;
}

.divider{border:none;border-top:1px solid var(--line);margin:56px 0;}

/* Tables (alphabet) */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);}
table{width:100%;border-collapse:collapse;background:var(--indigo-800);}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:0.93rem;}
th{color:var(--gold-bright);font-weight:600;font-size:0.78rem;text-transform:uppercase;
  letter-spacing:0.06em;background:var(--indigo-950);}
tr:last-child td{border-bottom:none;}

/* Panels for tool pages (clavier / convertisseur) */
.panel{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--indigo-800);
  padding:0;overflow:hidden;
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding:16px 20px;border-bottom:1px solid var(--line);background:var(--indigo-950);
}
.panel-head h3{margin:0;font-size:1rem;color:var(--sand);}
.tool-frame{width:100%;height:640px;border:0;background:var(--sand);}
@media (max-width:600px){.tool-frame{height:520px;}}

.note{
  border-left:3px solid var(--gold);background:rgba(198,145,47,0.08);
  padding:14px 18px;border-radius:0 8px 8px 0;font-size:0.92rem;color:var(--sand-dim);
}

/* Resources list */
.res-item{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:18px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--indigo-800);
}
.res-item h4{margin:0 0 4px;color:var(--sand);font-size:1rem;font-family:"Work Sans",sans-serif;font-weight:600;}
.res-item p{margin:0;font-size:0.88rem;}
.res-list{display:flex;flex-direction:column;gap:12px;}

/* Footer */
footer{border-top:1px solid var(--line);padding:40px 0;margin-top:40px;}
footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;
  font-size:0.85rem;color:var(--sand-dim);}
footer a{color:var(--sand-dim);}
footer a:hover{color:var(--gold-bright);}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .card,.btn{transition:none;}
}

/* Bouton "retour en haut" */
#back-to-top{
  position:fixed;right:20px;bottom:20px;z-index:30;
  width:44px;height:44px;border-radius:50%;
  background:var(--gold);color:var(--indigo-950);border:none;
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;line-height:1;cursor:pointer;
  box-shadow:0 4px 14px rgba(0,0,0,0.35);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s, transform .2s, background .15s;
}
#back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0);}
#back-to-top:hover{background:var(--gold-bright);}
@media (prefers-reduced-motion:reduce){
  #back-to-top{transition:none;}
}