/* ============================================================
   BASE: design tokens, reset, layout shell, shared atoms.
   The foundation shared by the studio view and the /guide page.
   palette: studio black / dailymotion blue / signal red / monetization gold
   type: Instrument Sans (UI) + Fragment Mono (data)
   ============================================================ */

:root{
  --bg:#0A0B0F;
  --panel:#111218;
  --panel-2:#16181F;
  --screen-bg:#07080C;
  --stroke:#23252F;
  --stroke-soft:#1B1D25;
  --blue:#0066DC;
  --blue-hi:#3D8BFF;
  --blue-soft:rgba(0,102,220,.14);
  --red:#FF4D6A;
  --gold:#FFC24B;
  --gold-data:#BE861D; /* or des séries de données : même famille que --gold mais
                          dans la bande de luminance validée pour la dataviz sur
                          fond sombre ; --gold reste l'or des accents (★, badges) */
  --mint:#31D0AA;
  --white:#F2F4FA;
  --text:#C5CADB;
  --dim:#8A90A5;
  --faint:#5A5F73;
  --ui:"Instrument Sans",system-ui,sans-serif;
  --mono:"Fragment Mono",ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--ui);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--blue);color:#fff}
a{color:inherit}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--blue-hi);outline-offset:3px;border-radius:4px}
code{font-family:var(--mono);font-size:.85em;color:var(--blue-hi)}

/* ---------- layout shell ---------- */
.studio{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100vh}

/* sidebar */
.side{
  position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;
  background:var(--panel);
  border-right:1px solid var(--stroke-soft);
  padding:22px 14px;
}
.side-brand{display:flex;align-items:center;gap:10px;padding:0 10px 22px}
.play-mark{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  background:var(--blue);color:#fff;
  display:grid;place-items:center;font-size:12px;
}
.side-name{font-weight:600;font-size:15.5px;color:var(--white);letter-spacing:-.01em}
.side-name b{color:var(--blue-hi);font-weight:600}
.side-nav{display:flex;flex-direction:column;gap:2px}
.sn-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 12px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--dim);
  text-decoration:none;
  transition:background .15s,color .15s;
}
.sn-item:hover{background:var(--panel-2);color:var(--white)}
.sn-item.is-active{background:var(--blue-soft);color:var(--blue-hi)}
.sn-ico{width:18px;text-align:center;font-size:12px;opacity:.9}
.side-foot{margin-top:auto;padding:14px 12px;border-top:1px solid var(--stroke-soft);display:flex;flex-direction:column;gap:6px}
.side-status{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--mint);display:flex;align-items:center;gap:8px}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
@media (prefers-reduced-motion:no-preference){
  .dot-live{animation:live 2s ease-in-out infinite}
  @keyframes live{50%{opacity:.4}}
}
.side-loc{font-size:11.5px;color:var(--dim)}

/* main column */
.main{min-width:0;padding:0 clamp(18px,3.5vw,48px) 40px}
.topline{
  position:sticky;top:0;z-index:30;
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:16px 0 14px;
  background:linear-gradient(var(--bg) 82%,transparent);
}
.tl-crumb{font-size:13px;color:var(--dim)}
.tl-crumb i{font-style:normal;color:var(--faint);margin:0 7px}
.tl-crumb b{color:var(--white);font-weight:600}
.tl-right{display:flex;align-items:center;gap:14px}
.badge{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  padding:4px 9px;border-radius:100px;
}
.badge-new{background:rgba(255,77,106,.14);color:var(--red)}
.badge-ok{background:rgba(49,208,170,.13);color:var(--mint)}
.tl-btn{
  font-size:13.5px;font-weight:600;color:#fff;background:var(--blue);
  padding:9px 18px;border-radius:8px;text-decoration:none;
  transition:background .15s,transform .15s;
}
.tl-btn:hover{background:var(--blue-hi);transform:translateY(-1px)}

/* ---------- shared headings (studio + guide) ---------- */
.h1{
  font-size:clamp(34px,4.6vw,58px);
  font-weight:700;letter-spacing:-.025em;line-height:1.04;
  color:var(--white);
}
.h1-blue{
  background:linear-gradient(92deg,var(--blue-hi),#7AB8FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{margin-top:18px;max-width:66ch;font-size:16.5px;color:var(--text)}
.lede b{color:var(--white);font-weight:600}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}

/* ---------- responsive shell ---------- */
@media (max-width:940px){
  .studio{grid-template-columns:1fr}
  .side{
    position:sticky;top:0;height:auto;z-index:40;
    flex-direction:row;align-items:center;gap:10px;
    padding:10px 14px;overflow-x:auto;
  }
  .side-brand{padding:0 8px 0 0}
  .side-nav{flex-direction:row;gap:4px}
  .sn-item{padding:8px 10px;font-size:12.5px;white-space:nowrap}
  .sn-ico{display:none}
  .side-foot{display:none}
}