:root{
  --bg:#0d0f12;
  --panel:#15181d;
  --panel-2:#1b1f26;
  --line:#272c34;
  --text:#e8eaed;
  --muted:#9aa1ab;
  --accent:#3b82f6;
  --accent-2:#2563eb;
  --ok:#22c55e;
  --later:#6b7280;
  --radius:10px;
  font-synthesis:none;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"ArchivoNarrow","Segoe UI",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit}
.screen{height:100vh;width:100vw;overflow:hidden}
[hidden]{display:none !important}

/* ---------- buttons ---------- */
.btn{
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--text);
  padding:9px 16px;
  border-radius:8px;
  cursor:pointer;
  font-size:14px;
  transition:.12s;
}
.btn:hover{border-color:#3a414c}
.btn.primary{background:var(--accent);border-color:var(--accent-2);color:#fff;width:100%;font-weight:600}
.btn.primary:hover{background:var(--accent-2)}
.btn.ghost{background:transparent}
.btn.small{padding:6px 12px;font-size:13px}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* ---------- login ---------- */
.login{display:grid;place-items:center;background:radial-gradient(1200px 600px at 50% -10%,#1a2230,var(--bg))}
.login-card{width:360px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:34px 30px;text-align:center}
.login-logo{font-family:"ArchivoNarrow",sans-serif;font-size:30px;font-weight:700;letter-spacing:.5px}
.login-logo span{color:var(--accent)}
.login-sub{color:var(--muted);font-size:13px;margin:6px 0 22px}
#login-form label{display:block;text-align:left;font-size:12px;color:var(--muted);margin-bottom:12px}
#login-form input{width:100%;margin-top:5px;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);font-size:14px}
.login-error{color:#f87171;font-size:13px;margin-top:10px}
.login-dormant{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;position:relative}
.tag-later{font-size:10px;color:var(--later);text-transform:uppercase;letter-spacing:1px;margin-top:4px}

/* ---------- studio shell ---------- */
.studio{display:flex;flex-direction:column}
.topbar{height:56px;display:flex;align-items:center;gap:24px;padding:0 18px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{font-family:"ArchivoNarrow",sans-serif;font-weight:700;font-size:19px}
.brand span{color:var(--accent)}
.template-tabs{display:flex;gap:4px;flex:1}
.template-tabs button{background:transparent;border:none;color:var(--muted);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:14px}
.template-tabs button.active{background:var(--panel-2);color:var(--text)}
.template-tabs button .mini{font-size:9px;color:var(--later);text-transform:uppercase;margin-left:6px}
.topbar-right{display:flex;align-items:center;gap:12px}
.who{color:var(--muted);font-size:13px}

.workspace{flex:1;display:grid;grid-template-columns:320px 1fr 300px;min-height:0}
.panel{background:var(--panel);overflow-y:auto;padding:18px}
.editor{border-right:1px solid var(--line)}
.side{border-left:1px solid var(--line);display:flex;flex-direction:column;gap:0}
.side-section{padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.side-section:last-child{border-bottom:none}

/* ---------- stage ---------- */
.stage-wrap{display:flex;flex-direction:column;min-width:0;background:#0a0c0f}
.stage-toolbar{display:flex;align-items:center;gap:14px;padding:10px 16px;border-bottom:1px solid var(--line)}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{background:var(--panel-2);border:none;color:var(--muted);padding:6px 12px;cursor:pointer;font-size:13px}
.seg button.active{background:var(--accent);color:#fff}
.transport{margin-left:auto;display:flex;gap:8px}
.stage-frame{flex:1;display:grid;place-items:center;padding:20px;min-height:0}
#stage-canvas{max-width:100%;max-height:100%;background:#000;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.scrubber{padding:10px 18px;border-top:1px solid var(--line)}
.scrubber input{width:100%}

/* ---------- editor fields ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.field textarea,.field input[type=text]{
  width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;
  color:var(--text);padding:10px 12px;font-size:14px;font-family:inherit;resize:vertical;
}
.field textarea{min-height:88px;line-height:1.5}
.field select{width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;color:var(--text);padding:9px 10px;font-size:14px;font-family:inherit}
.adjust{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:8px}
.adjust label{font-size:11px;color:var(--muted);display:flex;flex-direction:column;gap:5px;margin:0}
.adjust input[type=range]{width:100%}
.section-title{font-size:11px;text-transform:uppercase;letter-spacing:1.4px;color:var(--muted);margin:4px 0 14px;font-weight:600}

/* word-range selector */
.word-pick{display:flex;flex-wrap:wrap;gap:4px 5px;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:12px;line-height:2}
.word-pick .w{padding:2px 5px;border-radius:5px;cursor:pointer;user-select:none;transition:.1s}
.word-pick .w:hover{background:#2a313b}
.word-pick .w.sel{background:var(--accent);color:#fff}
.hint{font-size:11px;color:var(--muted);margin-top:7px;line-height:1.5}

.ai-btn{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(90deg,#4f46e5,#7c3aed);border:none;color:#fff;padding:6px 11px;border-radius:7px;font-size:12px;cursor:pointer;margin-top:8px}

/* background preset thumbnails */
.bg-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.bg-cell{aspect-ratio:16/10;border-radius:6px;border:2px solid var(--line);cursor:pointer;background-size:cover}
.bg-cell:hover{border-color:#3a414c}
.bg-cell.active{border-color:var(--accent)}
.bg-p0{background:linear-gradient(135deg,#0f1216,#161b22)}
.bg-p1{background:radial-gradient(circle at 45% 45%,#161b22,#000)}
.bg-p2{background:linear-gradient(135deg,#161b22,#0f1216);position:relative}
.bg-p2::after{content:"";position:absolute;top:0;right:0;border-top:14px solid var(--accent);border-left:14px solid transparent}
.bg-p3{background:radial-gradient(circle at 22% 80%,rgba(255,255,255,.18),#0f1216 60%)}
.bg-p4{background:#0f1216;background-image:linear-gradient(rgba(255,255,255,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.10) 1px,transparent 1px);background-size:9px 9px}

/* generated background library thumbnails */
.bg-lib{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:6px}
.bg-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px;border:2px solid var(--line);cursor:pointer;display:block}
.bg-thumb:hover{border-color:#3a414c}
.bg-thumb.active{border-color:var(--accent)}

/* brand kit */
.swatches{display:flex;gap:8px;margin-top:6px}
.swatch{width:30px;height:30px;border-radius:6px;border:2px solid transparent;cursor:pointer}
.swatch.active{border-color:#fff}
.logo-drop{border:1px dashed var(--line);border-radius:8px;padding:14px;text-align:center;color:var(--muted);font-size:12px;cursor:pointer}
.pos-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:8px}
.pos-grid button{aspect-ratio:16/9;background:var(--panel-2);border:1px solid var(--line);border-radius:5px;cursor:pointer}
.pos-grid button.active{border-color:var(--accent);background:#1e293b}

/* export */
.export-row{display:flex;gap:8px;margin-bottom:10px}
.export-row .btn{flex:1}
.later-block{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.later-item{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--later);padding:7px 0}
.later-item .pill{font-size:9px;border:1px solid var(--later);color:var(--later);border-radius:20px;padding:2px 8px;text-transform:uppercase;letter-spacing:.5px}
.toggle{width:34px;height:18px;border-radius:20px;background:var(--line);position:relative;flex:0 0 auto}
.toggle::after{content:"";position:absolute;width:14px;height:14px;border-radius:50%;background:#555;top:2px;left:2px}
.render-status{font-size:12px;color:var(--muted);margin-top:8px;min-height:16px}
.render-status.go{color:var(--ok)}