:root{
  --bg:#0f1226; --panel:#1a1f3a; --panel2:#232a4d; --line:#33396b;
  --purple:#a855f7; --blue:#3b82f6; --text:#eef0ff; --muted:#9aa2c9;
  --danger:#ef4444; --ok:#22c55e; --radius:14px;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text)}
img{max-width:100%;display:block}
h1,h2,h3{margin:0}
a{color:var(--purple)}

/* ---------- login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:radial-gradient(circle at 50% 0%,rgba(168,85,247,.18),transparent 60%),var(--bg)}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:36px 30px;width:100%;max-width:380px;
  box-shadow:0 0 40px rgba(168,85,247,.15);display:flex;flex-direction:column;gap:16px}
.login-logo{height:56px;width:auto;margin:0 auto 4px}
.login-card h1{font-size:22px;text-align:center;font-weight:800}
.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.login-card input{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--text);font-size:16px}
.login-card input:focus{outline:none;border-color:var(--purple)}
.back-link{text-align:center;font-size:13px;color:var(--muted)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:10px;
  padding:11px 18px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;transition:.15s;white-space:nowrap}
.btn.primary{background:linear-gradient(135deg,var(--purple),var(--blue));color:#fff}
.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn.ghost:hover{border-color:var(--purple)}
.btn.small{padding:7px 12px;font-size:13px}
.btn.danger{background:rgba(239,68,68,.15);border:1px solid var(--danger);color:#fca5a5}
.btn.danger:hover{background:var(--danger);color:#fff}
.icon-btn{background:none;border:none;color:var(--muted);font-size:20px;cursor:pointer;line-height:1}
.icon-btn:hover{color:var(--text)}

/* ---------- topbar ---------- */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 20px;background:rgba(15,18,38,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.brand img{height:34px;width:auto}
.topbar-actions{display:flex;gap:8px}

/* ---------- layout ---------- */
#app{max-width:1000px;margin:0 auto;padding:24px 20px 120px}
.loading{color:var(--muted);text-align:center;padding:60px 0}
.section{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:22px}
.section > h2{font-size:18px;margin-bottom:4px}
.section > .hint{color:var(--muted);font-size:13px;margin:0 0 16px}

/* media tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.tile{background:var(--panel2);border:1px solid var(--line);border-radius:12px;overflow:hidden;position:relative;display:flex;flex-direction:column}
.tile .thumb{position:relative;aspect-ratio:4/3;background:#000 center/cover no-repeat;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px}
.tile .thumb.logo-thumb{background:linear-gradient(135deg,var(--panel),var(--bg));padding:16px}
.tile .thumb.logo-thumb img{max-height:100%;opacity:.5}
.tile .cap{font-size:12px;color:var(--muted);padding:8px 10px;word-break:break-all}
.tile .actions{display:flex;gap:6px;padding:0 10px 10px;flex-wrap:wrap;margin-top:auto}
.tile .badge{position:absolute;top:6px;left:6px;background:rgba(0,0,0,.6);color:#fff;font-size:11px;padding:2px 7px;border-radius:20px}
.tile .badge.used{background:rgba(34,197,94,.85)}
.play-mark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;
  background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;
  border:none;cursor:pointer;padding:0;transition:.15s;z-index:2}
.play-mark:hover{background:var(--purple);transform:translate(-50%,-50%) scale(1.12)}

/* media library as a file registry list */
.filelist{display:flex;flex-direction:column;gap:6px}
.filerow{display:flex;align-items:center;gap:12px;padding:10px 14px;border:1px solid var(--line);
  border-radius:8px;background:var(--panel2);position:relative}
.filerow:hover{border-color:var(--purple)}
.filerow .ficon{width:20px;text-align:center;flex-shrink:0;color:var(--muted)}
.filerow .fname{flex:1;font-size:14px;word-break:break-all}
.filerow .rowthumb{position:absolute;right:130px;top:50%;transform:translateY(-50%) scale(.96);
  width:220px;height:140px;background:#000 center/cover no-repeat;border-radius:10px;border:1px solid var(--line);
  box-shadow:0 10px 34px rgba(0,0,0,.55);opacity:0;visibility:hidden;transition:.15s;pointer-events:none;z-index:6}
.filerow .rowthumb .pm{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;
  border-radius:50%;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;color:#fff}
.filerow:hover .rowthumb{opacity:1;visibility:visible;transform:translateY(-50%) scale(1)}
@media(max-width:640px){.filerow .rowthumb{display:none}}

/* single-slot preview (hero, about) */
.slot{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.slot .preview{width:220px;aspect-ratio:16/9;border-radius:12px;background:#000 center/cover no-repeat;border:1px solid var(--line);flex-shrink:0;position:relative}
.slot .preview.empty{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px}

/* upload dropzone */
.dropzone{display:block;width:100%;border:2px dashed var(--line);border-radius:12px;padding:24px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s}
.dropzone.drag,.dropzone:hover{border-color:var(--purple);background:rgba(168,85,247,.06);color:var(--text)}
.dropzone input{display:none}

/* add-row */
.addrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

/* save bar — slides up only when there are changes */
.savebar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 20px;background:rgba(26,31,58,.98);border-top:1px solid var(--line);backdrop-filter:blur(10px);
  transform:translateY(120%);transition:transform .45s cubic-bezier(.22,1,.36,1);box-shadow:0 -8px 30px rgba(0,0,0,.35)}
.savebar.show{transform:translateY(0)}
.savebar .status{font-size:14px;color:#fcd34d;font-weight:600}
.savebar .status.saved{color:var(--ok)}

/* modal */
.modal{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.75);display:flex;align-items:center;justify-content:center;padding:16px}
.modal.hidden{display:none}
.modal-box{background:var(--panel);border:1px solid var(--line);border-radius:16px;width:100%;max-width:820px;max-height:88vh;display:flex;flex-direction:column}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-body{padding:18px 20px;overflow:auto}

/* alerts / toast */
.alert{border-radius:10px;padding:10px 14px;font-size:14px}
.alert.error{background:rgba(239,68,68,.12);border:1px solid var(--danger);color:#fca5a5}
.hidden{display:none}
.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%);z-index:60;background:var(--panel2);
  border:1px solid var(--line);color:var(--text);padding:12px 18px;border-radius:10px;font-size:14px;box-shadow:0 8px 30px rgba(0,0,0,.4);max-width:90vw}
.toast.err{border-color:var(--danger)}
.toast.ok{border-color:var(--ok)}

@media(max-width:560px){
  .slot .preview{width:100%}
  .brand span{display:none}
}