/* Physis-PC / Lucy Prof — interface immersive plein écran (accueil → classe → chapitre → cours) */

/* verrou de la page WordPress quand l'app est active */
html.physis-active,body.physis-active{overflow:hidden !important}

.physis-app{
  --bg0:#070b1a;--bg1:#0e1330;--ink:#e8edff;--muted:#9aa6cf;--cyan:#22d3ee;--violet:#a78bfa;--pink:#f472b6;--green:#34d399;--amber:#fbbf24;--bd:rgba(255,255,255,.14);
  position:fixed;left:0;right:0;top:0;bottom:0;z-index:2147483000;overflow:hidden;
  color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;line-height:1.55;
  background:
    radial-gradient(1200px 620px at 12% -10%,rgba(167,139,250,.26),transparent 60%),
    radial-gradient(1000px 600px at 100% 0,rgba(34,211,238,.18),transparent 55%),
    radial-gradient(900px 760px at 50% 122%,rgba(244,114,182,.16),transparent 62%),
    linear-gradient(180deg,var(--bg0),var(--bg1));
}
/* laisser visible la barre d'admin WordPress pour l'enseignant connecté */
body.admin-bar .physis-app{top:32px}
@media(max-width:782px){body.admin-bar .physis-app{top:46px}}
.physis-app *{box-sizing:border-box}
.physis-app button{font-family:inherit;color:#e8edff}
.physis-app h1,.physis-app h2,.physis-app h3,.physis-app p,.physis-app span,.physis-app div,.physis-app li,.physis-app input{color:#e8edff}
.physis-tile .n{color:#fff}.physis-tile .k{color:var(--cyan)}.physis-tile .c{color:var(--muted)}

/* grille holographique discrète (derrière le contenu, pas de ligne mobile sur le texte) */
.physis-app::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:linear-gradient(rgba(34,211,238,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.07) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask:radial-gradient(circle at 50% 38%,#000,transparent 82%);mask:radial-gradient(circle at 50% 38%,#000,transparent 82%);
  animation:physisDrift 40s linear infinite}
@keyframes physisDrift{to{background-position:480px 480px,480px 480px}}

/* écrans empilés */
.physis-screen{position:absolute;inset:0;display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .35s ease}
.physis-screen.active{opacity:1;visibility:visible}

/* ---------- ÉCRAN ACCUEIL / CLASSES ---------- */
.physis-home{align-items:center;justify-content:center;text-align:center;padding:30px;overflow:auto}
.physis-home .brand{display:inline-flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.12em;font-size:1.05rem;color:#bfe9ff}
.physis-home .brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--cyan),var(--violet));display:grid;place-items:center;box-shadow:0 0 22px rgba(34,211,238,.55)}
.physis-home h1{margin:18px 0 6px;font-size:clamp(2rem,5vw,3.4rem);line-height:1.05;letter-spacing:-.02em;background:linear-gradient(90deg,#fff,#c7d2fe 55%,#a5f3fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.physis-home .lead{color:#cdd6ff;font-size:1.05rem;margin:0 0 26px}
.physis-tiles{display:grid;gap:16px;width:100%;max-width:980px;margin:auto}
.classes-tiles{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.physis-install-wrap{margin:2px auto 24px}
.physis-install{cursor:pointer;border:0;border-radius:999px;padding:13px 22px;font-weight:900;font-size:1rem;color:#06121f;background:linear-gradient(90deg,#34d399,#22d3ee);box-shadow:0 12px 30px rgba(0,0,0,.4),0 0 24px rgba(52,211,153,.4);transition:.15s}
.physis-install:hover{filter:brightness(1.06);transform:translateY(-2px)}
.physis-install-help .steps ol{margin:8px 0 0;padding-left:20px}
.physis-install-help .steps li{margin:4px 0}
.physis-tile{cursor:pointer;text-align:left;border:1px solid var(--bd);background:rgba(255,255,255,.05);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:20px;padding:20px;transition:.18s;position:relative;overflow:hidden}
.physis-tile:hover{transform:translateY(-4px);border-color:var(--cyan);box-shadow:0 18px 50px rgba(0,0,0,.45),0 0 24px rgba(34,211,238,.25)}
.physis-tile .k{font-size:.72rem;font-weight:800;letter-spacing:.14em;color:var(--cyan);text-transform:uppercase}
.physis-tile .n{font-size:1.3rem;font-weight:900;margin:6px 0 2px}
.physis-tile .c{color:var(--muted);font-size:.86rem}
.physis-tile .glow{position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,238,.4),transparent 70%);filter:blur(8px);opacity:.6}

/* ---------- BARRE SLIM (chapitres + cours) ---------- */
.physis-bar{display:flex;align-items:center;gap:12px;padding:10px 132px 10px 16px;border-bottom:1px solid var(--bd);background:rgba(8,12,30,.55);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);flex:0 0 auto}
.physis-bar .bar-title{font-weight:800;font-size:1rem;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.physis-bar .bar-title small{color:var(--muted);font-weight:700;margin-right:8px}
.physis-btn{cursor:pointer;border:1px solid var(--bd);background:rgba(255,255,255,.06);color:#cdd6ff;border-radius:999px;padding:8px 14px;font-weight:800;font-size:.82rem;transition:.15s;white-space:nowrap}
.physis-btn:hover{border-color:var(--cyan);color:#fff}
.physis-btn.primary{background:linear-gradient(90deg,var(--cyan),var(--violet));color:#06121f;border-color:transparent}
.physis-btn.ghost{background:transparent}
.physis-btn.icon{padding:8px 11px}
.physis-tools{display:flex;gap:8px}

/* ---------- ÉCRAN CHAPITRES ---------- */
.physis-chapters .physis-search{flex:0 0 auto}
.physis-chapters .physis-search input{font:inherit;padding:8px 12px;border:1px solid var(--bd);background:rgba(255,255,255,.06);color:var(--ink);border-radius:999px;width:min(46vw,260px)}
.physis-chapters .physis-search input::placeholder{color:var(--muted)}
.physis-chap-scroll{flex:1;overflow:auto;padding:22px}
.chapter-tiles{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.chapter-tile{cursor:pointer;display:flex;gap:14px;align-items:flex-start;border:1px solid var(--bd);background:rgba(255,255,255,.045);border-radius:16px;padding:15px 16px;transition:.16s}
.chapter-tile:hover{transform:translateY(-3px);border-color:var(--violet);box-shadow:0 14px 40px rgba(0,0,0,.4)}
.chapter-tile .num{flex:0 0 auto;width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-weight:900;font-size:1rem;background:linear-gradient(135deg,rgba(34,211,238,.25),rgba(167,139,250,.25));color:#a5f3fc;border:1px solid var(--bd)}
.chapter-tile .ttl{font-weight:700;font-size:.95rem}
.physis-empty{color:var(--muted);padding:30px;text-align:center}

/* ---------- ÉCRAN COURS ---------- */
.physis-viewer{}
.physis-frameWrap{flex:1;position:relative;min-height:0}
.physis-frame{display:block;width:100%;height:100%;border:0;background:transparent}
.physis-edit-flag{display:none;align-items:center;gap:7px;color:var(--amber);font-weight:800;font-size:.78rem}

/* ---------- MODALE MOT DE PASSE ---------- */
.physis-modal{position:absolute;inset:0;z-index:50;display:none;align-items:center;justify-content:center;background:rgba(4,8,20,.6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.physis-modal.open{display:flex}
.physis-modal .box{background:#0e1330;border:1px solid var(--bd);border-radius:18px;padding:22px;width:min(92vw,380px);box-shadow:0 30px 80px rgba(0,0,0,.6)}
.physis-modal h3{margin:0 0 6px}
.physis-modal p{color:var(--muted);font-size:.86rem;margin:0 0 14px}
.physis-modal input{width:100%;font:inherit;padding:10px 12px;border:1px solid var(--bd);background:rgba(255,255,255,.06);color:var(--ink);border-radius:10px;margin-bottom:12px}
.physis-modal .row{display:flex;gap:8px;justify-content:flex-end}
.physis-msg{font-size:.82rem;font-weight:700;min-height:18px;margin-bottom:8px}
.physis-msg.err{color:var(--pink)} .physis-msg.ok{color:var(--green)}

/* bouton Quitter (flottant, au-dessus de tous les écrans) */
.physis-exit{position:absolute;top:12px;right:14px;z-index:75;cursor:pointer;border:1px solid rgba(251,113,133,.55);background:rgba(8,12,30,.7);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fecdd3;border-radius:999px;padding:8px 14px;font-weight:800;font-size:.8rem;transition:.15s}
.physis-exit:hover{border-color:#fb7185;color:#fff;box-shadow:0 0 18px rgba(251,113,133,.45)}
/* bouton de relance après avoir quitté (hors de l'app) */
.physis-relaunch{position:fixed;right:16px;bottom:16px;z-index:2147483000;cursor:pointer;border:0;border-radius:999px;padding:12px 18px;font-weight:900;font-size:.9rem;color:#06121f;background:linear-gradient(90deg,#22d3ee,#a78bfa);box-shadow:0 10px 30px rgba(0,0,0,.4),0 0 22px rgba(34,211,238,.4);font-family:Inter,system-ui,sans-serif}

@media(max-width:640px){
  .physis-chapters .physis-search input{width:42vw}
  .physis-bar{flex-wrap:wrap}
}