:root{
  --bg:#090b10;
  --bg-soft:#0d1017;
  --panel:#121722;
  --panel2:#171e2b;
  --panel3:#1d2635;
  --text:#f7f9fc;
  --muted:#93a0b4;
  --accent:#7c5cff;
  --accent-2:#9a7cff;
  --accent-soft:rgba(124,92,255,.14);
  --border:#273143;
  --border-strong:#334057;
  --success:#65d88a;
  --warning:#e7bc69;
  --danger:#ff7a86;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --radius:18px;
  --radius-sm:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 20% -10%,rgba(124,92,255,.12),transparent 28%),
    radial-gradient(circle at 100% 0,rgba(89,125,255,.08),transparent 24%),
    var(--bg);
  color:var(--text);
}
button,input,textarea,select{font:inherit}
button{transition:transform .16s ease,background .16s ease,border-color .16s ease,opacity .16s ease}
button:active{transform:translateY(1px)}

.app-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}
.sidebar{
  position:sticky;top:0;height:100vh;
  border-right:1px solid rgba(255,255,255,.06);
  background:rgba(11,14,21,.92);
  backdrop-filter:blur(18px);
  padding:22px 16px;
  z-index:20;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:19px;letter-spacing:-.02em;
  margin:2px 8px 28px;
}
.brand::before{
  content:"AI";display:grid;place-items:center;width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent),#5b8cff);color:#fff;font-size:13px;
  box-shadow:0 10px 30px rgba(124,92,255,.35)
}
nav{display:grid;gap:7px}
.nav-btn{
  position:relative;text-align:left;border:1px solid transparent;border-radius:12px;
  padding:12px 14px;color:var(--muted);background:transparent;cursor:pointer;font-weight:650;
}
.nav-btn:hover{background:rgba(255,255,255,.035);color:var(--text)}
.nav-btn.active{
  background:linear-gradient(90deg,rgba(124,92,255,.18),rgba(124,92,255,.06));
  border-color:rgba(124,92,255,.28);color:#fff;
}
.nav-btn.active::before{
  content:"";position:absolute;left:-1px;top:9px;bottom:9px;width:3px;border-radius:4px;background:var(--accent-2)
}

.main{padding:30px 34px 48px;min-width:0;max-width:1600px;width:100%;margin:0 auto}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:22px;
  margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.055)
}
h1{margin:0 0 5px;font-size:30px;letter-spacing:-.035em}
h2{margin:0 0 14px;font-size:20px;letter-spacing:-.02em}
h3{letter-spacing:-.01em}
p{color:var(--muted);line-height:1.55}
.topbar p{margin:0;font-size:14px}

.primary,.secondary,.danger,.link-button{
  min-height:42px;border:1px solid transparent;border-radius:12px;padding:10px 15px;
  cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-weight:700
}
.primary{background:linear-gradient(135deg,var(--accent),#6c69ff);color:white;box-shadow:0 8px 22px rgba(124,92,255,.22)}
.primary:hover{filter:brightness(1.07);transform:translateY(-1px)}
.secondary{background:var(--panel2);border-color:var(--border);color:var(--text)}
.secondary:hover{background:var(--panel3);border-color:var(--border-strong)}
.danger{background:rgba(255,122,134,.10);border-color:rgba(255,122,134,.18);color:#ff9aa3}
.danger:hover{background:rgba(255,122,134,.16)}

.view{display:none;animation:fadeIn .16s ease}.view.active{display:block}
@keyframes fadeIn{from{opacity:.35;transform:translateY(2px)}to{opacity:1;transform:none}}

.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:20px}
.stat-card,.panel,.card,.media-card{
  background:linear-gradient(180deg,rgba(19,24,35,.96),rgba(16,21,31,.96));
  border:1px solid rgba(255,255,255,.07);border-radius:var(--radius);box-shadow:0 8px 28px rgba(0,0,0,.12)
}
.stat-card{padding:20px;position:relative;overflow:hidden}
.stat-card::after{content:"";position:absolute;right:-28px;bottom:-42px;width:110px;height:110px;border-radius:50%;background:rgba(124,92,255,.07)}
.stat-card span{color:var(--muted);display:block;margin-bottom:9px;font-size:13px;font-weight:650;text-transform:uppercase;letter-spacing:.06em}
.stat-card strong{font-size:34px;letter-spacing:-.04em}
.panel{padding:20px;margin-bottom:18px}
.cards,.media-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{padding:18px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-2px);border-color:rgba(124,92,255,.26);box-shadow:var(--shadow)}
.card h3{margin:0 0 9px;font-size:17px}.card .meta{color:var(--muted);font-size:13px;line-height:1.7}
.card .actions{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}
.section-actions{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;padding:2px 2px 4px}
.section-actions p{margin:0}
.muted{color:var(--muted)}

label{display:grid;gap:7px;color:var(--muted);font-size:13px;font-weight:620}
input,textarea,select{
  width:100%;background:#0c1018;color:var(--text);border:1px solid var(--border);border-radius:11px;
  padding:11px 12px;outline:none;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease
}
input:focus,textarea:focus,select:focus{border-color:rgba(124,92,255,.75);box-shadow:0 0 0 3px rgba(124,92,255,.12);background:#0e131c}
textarea{min-height:92px;resize:vertical;line-height:1.5}.large-text{min-height:230px}.readonly{opacity:.88;background:#0b0f16}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.modal-actions,.button-row{display:flex;justify-content:flex-end;gap:9px;margin-top:7px;flex-wrap:wrap}

.notice{
  margin-top:12px;padding:12px 14px;border-radius:12px;background:#0f1520;border:1px solid rgba(255,255,255,.055);
  color:var(--muted);white-space:pre-wrap;line-height:1.5;font-size:13px
}

.project-head{
  display:flex;align-items:center;gap:16px;margin-bottom:18px;padding:16px 18px;
  border:1px solid rgba(255,255,255,.06);border-radius:16px;background:rgba(17,22,32,.74)
}
.project-head h2{margin:0 0 3px;font-size:22px}.project-head .secondary{min-height:38px}
.project-tabs{
  display:flex;gap:8px;overflow-x:auto;padding:4px 2px 12px;margin-bottom:14px;scrollbar-width:thin
}
.project-tab{
  flex:0 0 auto;border:1px solid var(--border);background:#111722;color:var(--muted);padding:10px 14px;border-radius:12px;cursor:pointer;font-weight:700
}
.project-tab:hover{color:var(--text);border-color:var(--border-strong)}
.project-tab.active{background:var(--accent-soft);color:#fff;border-color:rgba(124,92,255,.52);box-shadow:inset 0 0 0 1px rgba(124,92,255,.08)}
.project-pane{display:none}.project-pane.active{display:block}
.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.overview-grid>div{background:#0f1520;border:1px solid rgba(255,255,255,.055);padding:18px;border-radius:14px}
.overview-grid span{display:block;margin-bottom:8px;font-size:12px;text-transform:uppercase;letter-spacing:.05em}.overview-grid strong{font-size:28px;letter-spacing:-.035em}

.scenes-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:16px;min-height:620px}
.scene-sidebar{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.scene-list-head{padding:15px 16px;font-weight:800;border-bottom:1px solid var(--border);background:rgba(255,255,255,.018)}
#scene-list{max-height:680px;overflow:auto}
.scene-item{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid rgba(255,255,255,.045);background:transparent;color:var(--muted);padding:12px 15px;cursor:pointer;font-weight:620}
.scene-item:hover{background:rgba(255,255,255,.035);color:var(--text)}
.scene-item.active{background:linear-gradient(90deg,rgba(124,92,255,.18),rgba(124,92,255,.04));color:#fff}

.control-row{display:flex;gap:10px;align-items:end;flex-wrap:wrap}.control-row label{width:115px}.control-row button{min-height:42px}
.check-label{display:flex;grid-template-columns:auto 1fr;align-items:center;gap:8px;width:auto!important;min-height:42px}.check-label input{width:auto}

.media-gallery{margin-top:16px}
.media-card{overflow:hidden;transition:transform .17s ease,border-color .17s ease}.media-card:hover{transform:translateY(-2px);border-color:rgba(124,92,255,.24)}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#080a0f;display:block;cursor:pointer}
.media-placeholder{aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0a0d13,#101620);color:var(--muted);font-size:13px}
.media-card-body{padding:14px}.media-card-body h3{margin:0 0 9px;font-size:15px}
.status-ok{color:var(--success)}.status-missing{color:var(--warning)}
.audio-full{width:100%;margin-top:14px}.scene-audio{width:100%;margin-top:11px}
.video-player{width:100%;max-height:72vh;margin-top:16px;background:#000;border-radius:14px;border:1px solid var(--border)}

.hidden{display:none!important}
dialog{
  width:min(700px,calc(100vw - 28px));border:1px solid var(--border-strong);border-radius:20px;
  background:#121722;color:var(--text);padding:0;box-shadow:0 32px 90px rgba(0,0,0,.52)
}
dialog::backdrop{background:rgba(3,5,9,.78);backdrop-filter:blur(5px)}
dialog form{padding:24px;display:grid;gap:13px}
.image-modal-body{padding:14px}.image-modal-body img{max-width:90vw;max-height:80vh;display:block;margin-bottom:12px;border-radius:12px}

/* Auth/collaboration elements injected by auth.js */
#auth-overlay{backdrop-filter:blur(12px)!important}
.auth-card{border-radius:22px!important;box-shadow:0 30px 90px rgba(0,0,0,.5)!important}
#auth-user-email{max-width:250px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#logout-btn,#share-project-btn{border-radius:11px!important}

/* Compact scrollbar */
*{scrollbar-width:thin;scrollbar-color:#303a4c transparent}
*::-webkit-scrollbar{width:9px;height:9px}*::-webkit-scrollbar-thumb{background:#303a4c;border-radius:999px;border:2px solid transparent;background-clip:padding-box}

@media(max-width:980px){
  .app-shell{grid-template-columns:210px minmax(0,1fr)}
  .sidebar{padding:18px 12px}.brand{font-size:17px;margin-left:5px}.main{padding:24px 22px 42px}
  .overview-grid{grid-template-columns:1fr 1fr}.stats{gap:12px}
}

@media(max-width:760px){
  body{padding-bottom:76px}
  .app-shell{display:block;min-height:100vh}
  .sidebar{
    position:fixed;left:0;right:0;bottom:0;top:auto;height:auto;z-index:80;
    border-right:0;border-top:1px solid rgba(255,255,255,.08);padding:8px 8px calc(8px + env(safe-area-inset-bottom));
    background:rgba(10,13,19,.94);backdrop-filter:blur(18px)
  }
  .brand{display:none}
  nav{grid-template-columns:repeat(5,1fr);gap:5px}
  .nav-btn{padding:9px 4px;text-align:center;font-size:11px;border-radius:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .nav-btn.active::before{display:none}
  .main{padding:17px 14px 26px;max-width:none}
  .topbar{align-items:flex-start;margin-bottom:18px;padding-bottom:15px;gap:12px}.topbar h1{font-size:25px}.topbar p{font-size:12px}.topbar .primary{min-height:38px;padding:9px 11px;font-size:12px;white-space:nowrap}
  .stats{grid-template-columns:repeat(3,1fr);gap:8px}.stat-card{padding:13px}.stat-card span{font-size:10px}.stat-card strong{font-size:25px}
  .cards,.media-gallery{grid-template-columns:1fr;gap:12px}
  .section-actions{align-items:flex-start}.section-actions p{font-size:13px}.section-actions .primary{white-space:nowrap}
  .form-row{grid-template-columns:1fr}.overview-grid{grid-template-columns:1fr 1fr;gap:9px}.overview-grid>div{padding:13px}.overview-grid strong{font-size:23px}
  .project-head{padding:12px;align-items:flex-start}.project-head h2{font-size:19px}.project-head .secondary{padding:8px 10px;font-size:12px}
  .project-tabs{margin-left:-14px;margin-right:-14px;padding-left:14px;padding-right:14px}.project-tab{padding:9px 12px;font-size:12px}
  .panel{padding:15px;border-radius:15px}.panel h2{font-size:18px}
  .scenes-layout{grid-template-columns:1fr;min-height:0}.scene-sidebar{max-height:250px}.scene-sidebar #scene-list{max-height:200px}
  .control-row{align-items:stretch}.control-row label{width:calc(50% - 5px)}.control-row button{flex:1 1 calc(50% - 5px)}.check-label{width:100%!important}
  .button-row,.modal-actions{justify-content:stretch}.button-row button,.modal-actions button{flex:1}
  .large-text{min-height:180px}
  dialog{width:calc(100vw - 18px);max-height:88vh;overflow:auto;border-radius:18px}dialog form{padding:18px}
  #auth-user-email{display:none}
}

@media(max-width:430px){
  .topbar{display:grid;grid-template-columns:1fr auto}.topbar p{max-width:220px}
  .stats{grid-template-columns:1fr 1fr}.stats .stat-card:last-child{grid-column:1/-1}
  .overview-grid{grid-template-columns:1fr 1fr}
  .control-row label{width:100%}.control-row button{flex-basis:100%}
  .project-tabs{gap:6px}.project-tab{padding:8px 10px}
}