/* =====================================================================
   studio-shell.css — SHELL de la app del estudio (sidebar plegable + top bar
   + pantallas). Layout NUEVO; usa SOLO los tokens del tema de la portada
   (var(--...)) y sus átomos (.glass). Todas las clases van prefijadas `app-`
   para no colisionar con el CSS existente de estudio.html.
   Se carga DESPUÉS de portada-theme.css.
   ===================================================================== */

html,body{height:100%}
body{overflow:hidden}

.app-shell{
  position:relative; z-index:1;
  height:calc(100vh - 28px); margin:14px;
  display:flex; flex-direction:column;
  border-radius:22px; overflow:hidden;
}

/* ---------- TOP BAR ---------- */
.app-topbar{display:flex; align-items:center; gap:18px; padding:13px 18px; border-bottom:1px solid var(--line); background:rgba(4,7,12,.55)}
.app-logo{display:flex; align-items:center; gap:10px; font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:20px; color:var(--text); text-decoration:none}
.app-logo svg{filter:drop-shadow(0 0 8px rgba(120,180,240,.55))}
.app-logo .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.app-badge{font-family:'Orbitron',sans-serif;font-weight:600;font-size:8.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);border:1px solid rgba(127,184,240,.28);background:rgba(127,184,240,.06);border-radius:999px;padding:5px 10px;white-space:nowrap}
.app-tagline{color:var(--muted);font-size:12.5px;line-height:1.35;max-width:640px;flex:1;min-width:0}
.app-topright{display:flex;align-items:center;gap:10px;margin-left:auto}
.app-credits{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.04);border:1px solid rgba(244,247,255,.16);border-radius:999px;padding:7px 13px;font-size:13px;color:var(--text);font-weight:600;white-space:nowrap}
.app-credits .st{color:var(--gold)}
.app-lang{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.04);border:1px solid rgba(244,247,255,.16);border-radius:999px;padding:7px 12px;font-size:13px;color:var(--text);cursor:pointer}
.app-lang .globe{opacity:.7}
.app-btn-sm{padding:9px 18px;font-size:13.5px}

/* ---------- BODY (sidebar + screens) ---------- */
.app-body{flex:1; display:flex; min-height:0}

/* ---------- SIDEBAR plegable ---------- */
.app-sidebar{width:236px; flex:none; display:flex; flex-direction:column; gap:4px; padding:14px 12px; border-right:1px solid var(--line); background:linear-gradient(180deg, rgba(12,18,28,.40), rgba(9,13,20,.30)); transition:width .18s ease}
.app-sidetop{display:flex; align-items:center; justify-content:flex-end; padding:2px 4px 8px}
.app-collapse{background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--muted);width:30px;height:30px;border-radius:9px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s}
.app-collapse:hover{color:var(--text);border-color:rgba(120,180,240,.4)}
.app-nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:11px;cursor:pointer;color:var(--muted);font-size:14px;font-weight:500;border:1px solid transparent;transition:.14s;white-space:nowrap}
.app-nav-item:hover{background:rgba(255,255,255,.04);color:var(--text)}
.app-nav-item.active{color:var(--text);background:rgba(127,184,240,.12);border-color:rgba(127,184,240,.45);box-shadow:inset 0 0 0 1px rgba(127,184,240,.12), 0 0 18px rgba(115,182,250,.10)}
.app-nav-item .ico{width:22px;height:22px;flex:none;display:flex;align-items:center;justify-content:center;color:var(--cyan);opacity:.95}
.app-nav-sep{height:1px;background:var(--line);margin:10px 6px}
.app-sidespace{flex:1}
.app-sidefoot{display:flex;flex-direction:column;gap:10px}
.app-plan{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:13px;padding:11px 12px}
.app-plan .ptop{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text);font-weight:600}
.app-plan .crown{color:var(--gold)}
.app-plan .pcred{font-size:11.5px;color:var(--muted);margin:5px 0 7px}
.app-pbar{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.app-pbar i{display:block;height:100%;width:62%;background:var(--grad2);border-radius:999px}
.app-acct{display:flex;align-items:center;gap:10px;padding:8px 6px;border-radius:11px;cursor:pointer;transition:.14s}
.app-acct:hover{background:rgba(255,255,255,.04)}
.app-acct .av{width:30px;height:30px;border-radius:50%;flex:none;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#04122a;font-weight:700;font-size:13px;font-family:'Space Grotesk',sans-serif}
.app-acct .who{min-width:0}
.app-acct .who b{display:block;font-size:13px;color:var(--text);font-weight:600}
.app-acct .who span{display:block;font-size:11px;color:var(--soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-acct .chev{margin-left:auto;color:var(--soft)}

/* colapsado: solo iconos */
.app-shell.collapsed .app-sidebar{width:64px}
.app-shell.collapsed .app-nav-item{justify-content:center;padding:10px 0}
.app-shell.collapsed .app-nav-item .lbl,
.app-shell.collapsed .app-plan,
.app-shell.collapsed .app-acct .who,
.app-shell.collapsed .app-acct .chev{display:none}
.app-shell.collapsed .app-acct{justify-content:center;padding:6px 0}
.app-shell.collapsed .app-sidefoot{align-items:center}

/* ---------- PANTALLAS (screens) ---------- */
.app-screens{flex:1; min-width:0; overflow:auto; padding:16px 18px}
.app-screen{display:none}
.app-screen.active{display:block}
.app-screen-title{display:flex; align-items:center; gap:10px; margin:2px 2px 14px}
.app-screen-title h1{font-family:'Space Grotesk',sans-serif; font-size:20px; font-weight:700; display:flex; align-items:center; gap:9px}
.app-screen-title .chev{margin-left:6px;color:var(--soft);cursor:pointer}

/* rejilla de 3 columnas de Imagen→3D */
.app-cols{display:grid; grid-template-columns:360px minmax(0,1fr) 340px; gap:16px; align-items:start}
@media(max-width:1180px){.app-cols{grid-template-columns:340px minmax(0,1fr)} .app-col-side{grid-column:1 / -1}}
@media(max-width:820px){.app-cols{grid-template-columns:1fr}}

.app-panel{background:linear-gradient(158deg,rgba(20,30,44,.34),rgba(9,13,20,.30)); border:1px solid var(--line); border-radius:16px; padding:15px}
.app-panel + .app-panel{margin-top:14px}
.app-step-label{font-family:'Orbitron',sans-serif;font-weight:600;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:11px}

.app-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:'Inter',sans-serif;font-weight:600;border-radius:11px;cursor:pointer;border:0;transition:.16s;font-size:14px;padding:11px 16px;text-decoration:none;color:var(--text)}
.app-btn-primary{background:var(--grad);color:#04122a;box-shadow:0 0 24px rgba(120,180,240,.30)}
.app-btn-primary:hover{transform:translateY(-1px)}
.app-btn-ghost{background:rgba(255,255,255,.04);border:1px solid rgba(244,247,255,.16);color:var(--text)}
.app-btn-ghost:hover{border-color:rgba(120,180,240,.4);background:rgba(120,180,240,.06)}
.app-btn-block{width:100%}

/* paneles plegables (folds) */
.app-fold{border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.02);overflow:hidden}
.app-fold + .app-fold{margin-top:10px}
.app-fold > summary{display:flex;align-items:center;gap:11px;padding:13px 14px;cursor:pointer;list-style:none;transition:.14s}
.app-fold > summary::-webkit-details-marker{display:none}
.app-fold > summary:hover{background:rgba(255,255,255,.03)}
.app-fold .fi{color:var(--cyan);opacity:.9}
.app-fold .ft{flex:1}
.app-fold .ft b{display:block;font-size:13.5px;color:var(--text);font-weight:600}
.app-fold .ft span{display:block;font-size:11.5px;color:var(--soft);margin-top:1px}
.app-fold .fc{color:var(--soft);transition:transform .15s}
.app-fold[open] .fc{transform:rotate(180deg)}
.app-fold .foldbody{padding:4px 14px 14px}

/* columna central: marco del visor */
.app-viewer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.app-viewer-head b{font-family:'Space Grotesk',sans-serif;font-size:15px}
.app-vtools{display:flex;gap:6px}
.app-vbtn{width:30px;height:30px;border-radius:9px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.14s;font-size:15px}
.app-vbtn:hover{color:var(--text);border-color:rgba(120,180,240,.4)}
.app-viewer-frame{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:radial-gradient(120% 90% at 50% 0%, rgba(30,44,66,.35), rgba(6,9,14,.6))}
.app-quick{margin-top:14px}
.app-quick .lbl{font-size:12.5px;color:var(--muted);margin-bottom:8px}

/* columna derecha: campos */
.app-fld{margin-top:13px}
.app-fld label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.app-two{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:13px}
.app-mini{padding:10px 8px;font-size:12.5px;border-radius:11px;background:rgba(255,255,255,.03);border:1px solid var(--line);color:var(--text);cursor:pointer;text-align:center;transition:.14s;line-height:1.3}
.app-mini:hover{border-color:rgba(120,180,240,.4)}
.app-mc-empty{color:var(--soft);font-size:12.5px;line-height:1.5}

/* ---------- pantallas placeholder ---------- */
.app-placeholder{max-width:560px;margin:6vh auto 0;text-align:center;padding:38px 30px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(158deg,rgba(20,30,44,.30),rgba(9,13,20,.26))}
.app-placeholder .pico{width:56px;height:56px;margin:0 auto 16px;color:var(--cyan);opacity:.55}
.app-placeholder h2{font-family:'Space Grotesk',sans-serif;font-size:22px;margin-bottom:10px}
.app-placeholder p{color:var(--muted);font-size:14px;line-height:1.6;margin-bottom:6px}
.app-placeholder .soon{display:inline-block;margin-top:14px;font-family:'Orbitron',sans-serif;font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);border:1px solid rgba(127,184,240,.3);background:rgba(127,184,240,.06);border-radius:999px;padding:6px 14px}
/* gate simulado (Biblioteca) */
.app-gate{max-width:460px;margin:8vh auto 0;text-align:center;padding:34px 30px}
.app-gate .lock{width:46px;height:46px;margin:0 auto 14px;color:var(--gold);opacity:.7}
.app-gate .row{display:flex;gap:10px;justify-content:center;margin-top:18px}

/* el <header> y <footer> originales quedan ocultos: su contenido vive ahora en el shell
   (se conservan en el DOM porque #btnSalir/.langs siguen enganchados a la lógica existente). */
header{display:none !important}
body > footer{display:none !important}

/* menú de idioma del top bar (reusa la delegación global [data-lang] de i18n.js) */
.app-langmenu{position:absolute;top:calc(100% + 8px);right:0;background:rgba(10,14,22,.97);border:1px solid var(--line);border-radius:12px;padding:6px;display:none;flex-direction:column;min-width:152px;z-index:60;box-shadow:0 14px 40px rgba(0,0,0,.5)}
.app-lang.open .app-langmenu{display:flex}
.app-langmenu button{background:none;border:0;color:var(--text);padding:9px 12px;text-align:left;border-radius:8px;cursor:pointer;font-size:13.5px;font-family:'Inter',sans-serif}
.app-langmenu button:hover{background:rgba(120,180,240,.1)}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:rgba(120,180,240,.18);border-radius:999px}
::-webkit-scrollbar-track{background:transparent}