/*!
 * N°76 Studio — shared chrome (nav + footer)
 * Mirror of index.html nav/footer styles.
 * Used by: index.html, about.html, faq.html, privacy.html, cookie.html, termini.html
 * Last update: 2026-05-10
 *
 * Uses local CSS vars so it doesn't override per-page :root palettes.
 */

/* Accessibility: respect user motion preference */
@media (prefers-reduced-motion: reduce){
  nav, nav *, footer, footer *{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
}

nav, footer{
  --chrome-bg:#f5f4f0;
  --chrome-text:#111;
  --chrome-muted:#888;
  --chrome-border:#d8d6d0;
  --chrome-ease-out:cubic-bezier(.22,1,.36,1);
}

@keyframes chrome-pulse{0%,100%{opacity:1}50%{opacity:.3}}

/* NAV */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:1.4rem 2rem;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  background:rgba(245,244,240,.78);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  border-bottom:.5px solid var(--border);
  transition:padding .3s var(--ease-out), background .3s, border-color .5s, color .5s;
  font-family:'Martian Mono',monospace;
}
nav.compact{padding:.85rem 2rem;background:rgba(245,244,240,.94)}
.nav-logo{font-size:1rem;font-weight:300;letter-spacing:-.02em;display:flex;align-items:center;gap:.5rem;color:var(--text);text-decoration:none}
.nav-logo .dot{width:6px;height:6px;border-radius:50%;background:var(--text);display:inline-block;animation:chrome-pulse 3s ease-in-out infinite}
.nav-links{display:flex;gap:2rem;list-style:none;justify-content:center;margin:0;padding:0}
.nav-links a{
  font-size:.7rem;
  color:var(--muted);
  letter-spacing:.08em;
  text-transform:uppercase;
  position:relative;
  padding:.3rem 0;
  transition:color .3s;
  text-decoration:none;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:.5px;background:var(--text);
  transform:scaleX(0);transform-origin:right;
  transition:transform .4s var(--ease-out);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left}
.nav-right{
  font-size:.68rem;color:var(--muted);
  letter-spacing:.04em;text-align:right;
  display:flex;align-items:center;justify-content:flex-end;gap:1.4rem;
}
.nav-right .clock-wrap{display:flex;flex-direction:column;line-height:1.4;text-align:right}
.nav-right .clock-wrap span:first-child{color:var(--text)}
.lang-switch{
  display:flex;border:.5px solid var(--border);border-radius:999px;
  padding:.18rem;background:rgba(255,255,255,.4);
  font-size:.6rem;letter-spacing:.1em;
}
.lang-switch button{
  background:none;border:none;
  padding:.25rem .55rem;
  color:var(--muted);cursor:pointer;
  letter-spacing:.1em;text-transform:uppercase;
  border-radius:999px;
  transition:background .3s, color .3s;
  font-size:.6rem;
  font-family:inherit;
}
.lang-switch button.active{background:var(--text);color:var(--bg)}

/* HAMBURGER */
.nav-burger{
  display:none;
  width:36px;height:36px;padding:0;
  border:none;background:transparent;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  cursor:pointer;
}
.nav-burger span{
  display:block;width:22px;height:1px;background:var(--text);
  transition:transform .35s var(--ease-out), opacity .35s var(--ease-out), background .3s;
}
.nav-burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* FOOTER */
footer{
  padding:0 2rem 2rem;
  position:relative;
  font-family:'Martian Mono',monospace;
  background:var(--bg);
}
footer a{color:var(--muted);text-decoration:none;border-bottom:none}
footer a:hover{color:var(--text)}
.footer-logo-wrap{
  display:flex;justify-content:center;align-items:center;
  padding:3rem 0 3rem;
}
.footer-logo-img{
  height:clamp(80px,14vw,160px);
  width:auto;
  user-select:none;
  -webkit-user-drag:none;
}
.footer-grid{
  display:grid;grid-template-columns:1fr 1fr 1fr 1fr;
  gap:2rem;
  padding-top:2rem;
  max-width:1200px;margin:0 auto;
  font-size:.7rem;color:var(--muted);
  text-align:center;
}
.footer-grid > div{display:flex;flex-direction:column;align-items:center}
.footer-grid h5{
  font-size:.55rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--text);margin:0 0 .8rem;font-weight:500;
}
.footer-grid ul{list-style:none;display:flex;flex-direction:column;gap:.5rem;margin:0;padding:0;align-items:center}
.footer-grid a{transition:color .3s}
.footer-grid a:hover{color:var(--text)}
.footer-bottom{
  display:flex;justify-content:center;align-items:center;
  margin:3rem auto 0;padding-top:2rem;
  max-width:1200px;
  border-top:.5px solid var(--border);
  font-size:.62rem;letter-spacing:.08em;color:var(--muted);
  flex-wrap:wrap;gap:2rem;text-align:center;
}
.footer-bottom .footer-tag{margin-left:0;text-align:center}

/* RESPONSIVE */
@media(max-width:900px){
  nav{display:flex;align-items:center;gap:1rem;grid-template-columns:none;backdrop-filter:none;-webkit-backdrop-filter:none}
  .nav-logo{order:1}
  .nav-right{order:2;flex-direction:row;gap:.6rem}
  .nav-right .clock-wrap{display:none}
  .nav-burger{display:flex;order:3;margin-left:auto;position:relative;z-index:200}
  .nav-links{
    position:fixed;top:0;left:0;right:0;bottom:0;
    display:flex;flex-direction:column;
    align-items:center;justify-content:center;
    gap:1.6rem;
    background:rgba(245,244,240,.98);
    backdrop-filter:blur(24px) saturate(140%);
    -webkit-backdrop-filter:blur(24px) saturate(140%);
    z-index:150;
    opacity:0;pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .4s var(--ease-out), transform .4s var(--ease-out);
    margin:0;padding:0;
  }
  .nav-links.open{opacity:1;pointer-events:auto;transform:translateY(0)}
  .nav-links li{list-style:none}
  .nav-links a{
    font-family:'Martian Mono',monospace;
    font-size:1.1rem;letter-spacing:.18em;
    color:var(--text);
  }
  .nav-links a::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .nav-right .clock-wrap{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem 1rem}
}