:root{
  --bg:#0a0a0d;
  --panel:#121218;
  --panel-2:#17171f;
  --panel-3:#1e1e28;
  --line:#262631;
  --line-soft:#1d1d26;
  --text:#f2f2f7;
  --muted:#8b8b9a;
  --accent:#6f5cff;
  --accent-soft:rgba(111,92,255,.14);
  --radius:12px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  display:flex;flex-direction:column;overflow:hidden;
}

/* ================= topbar ================= */
.topbar{
  height:58px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;border-bottom:1px solid var(--line);background:var(--panel);
}
.brand{display:flex;align-items:center;gap:9px}
.brand-mark{color:var(--accent);font-size:19px;line-height:1}
.brand-name{font-weight:700;letter-spacing:-.02em;font-size:16px}
.brand-sub{color:var(--muted);font-size:12px;padding-left:9px;border-left:1px solid var(--line)}
.topbar-actions{display:flex;align-items:center;gap:10px}

.seg{display:flex;background:var(--panel-3);border:1px solid var(--line);border-radius:9px;padding:3px;gap:2px}
.seg-btn{
  display:flex;align-items:center;gap:6px;border:0;background:transparent;color:var(--muted);
  font:inherit;font-size:12.5px;font-weight:550;padding:6px 11px;border-radius:6px;cursor:pointer;
  transition:background .15s,color .15s;
}
.seg-btn:hover{color:var(--text)}
.seg-btn.is-active{background:var(--accent);color:#fff;box-shadow:0 1px 6px rgba(111,92,255,.35)}

.ghost-btn{
  border:1px solid var(--line);background:transparent;color:var(--text);font:inherit;font-size:12.5px;
  font-weight:550;padding:8px 13px;border-radius:9px;cursor:pointer;transition:background .15s,border-color .15s;
}
.ghost-btn:hover{background:var(--panel-3);border-color:#33333f}

/* ================= layout ================= */
.shell{flex:1 1 auto;display:grid;grid-template-columns:352px 1fr;min-height:0}

/* ================= editor ================= */
.editor{
  border-right:1px solid var(--line);background:var(--panel);
  display:flex;flex-direction:column;min-height:0;
}
.editor-head{padding:16px 16px 12px;display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.editor-title{margin:0;font-size:14.5px;font-weight:650;letter-spacing:-.01em}
.editor-sub{margin:3px 0 0;font-size:11.5px;color:var(--muted);line-height:1.4;max-width:190px}
.primary-btn{
  border:0;background:var(--accent);color:#fff;font:inherit;font-size:12.5px;font-weight:600;
  padding:8px 12px;border-radius:9px;cursor:pointer;white-space:nowrap;transition:filter .15s;
}
.primary-btn:hover{filter:brightness(1.08)}

.rows{flex:1 1 auto;overflow-y:auto;padding:4px 12px 12px;display:flex;flex-direction:column;gap:8px}
.rows::-webkit-scrollbar{width:9px}
.rows::-webkit-scrollbar-thumb{background:#2a2a36;border-radius:9px;border:2px solid var(--panel)}

.row-card{
  background:var(--panel-2);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:10px 11px;transition:border-color .15s,background .15s;
}
.row-card:hover{border-color:#2f2f3d}
.row-card.dragging{opacity:.5}

.row-top{display:flex;align-items:center;gap:7px;margin-bottom:8px}
.row-handle{cursor:grab;color:#454553;font-size:13px;line-height:1;user-select:none;padding:2px}
.row-title-input{
  flex:1;min-width:0;background:transparent;border:1px solid transparent;border-radius:7px;
  color:var(--text);font:inherit;font-size:13px;font-weight:600;padding:5px 6px;transition:border-color .15s,background .15s;
}
.row-title-input:hover{background:var(--panel-3)}
.row-title-input:focus{outline:none;border-color:var(--accent);background:var(--panel-3)}

.icon-btn{
  border:0;background:transparent;color:var(--muted);cursor:pointer;border-radius:7px;
  width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;
  transition:background .15s,color .15s;flex:0 0 auto;
}
.icon-btn:hover{background:var(--panel-3);color:var(--text)}
.icon-btn.danger:hover{color:#ff6b6b}

.row-controls{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.field{display:flex;flex-direction:column;gap:3px;min-width:0}
.field label{font-size:10px;text-transform:uppercase;letter-spacing:.05em;color:#6d6d7e;font-weight:600}
.field select,.field input,.field textarea{
  background:var(--panel-3);border:1px solid var(--line);border-radius:7px;color:var(--text);
  font:inherit;font-size:12px;padding:6px 7px;width:100%;min-width:0;
}
.field select:focus,.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field textarea{resize:vertical;min-height:52px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.5}
.field.full{grid-column:1 / -1}

.row-meta{display:flex;justify-content:space-between;align-items:center;margin-top:7px;font-size:11px;color:var(--muted)}
.chip{background:var(--accent-soft);color:#a99bff;border-radius:20px;padding:2px 8px;font-size:10.5px;font-weight:600}

.editor-foot{padding:11px 14px;border-top:1px solid var(--line);background:var(--panel-2)}
.foot-note{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--muted)}
.foot-note code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10.5px;color:#9d93ff;
  background:var(--panel-3);padding:5px 7px;border-radius:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ================= stage ================= */
.stage{
  position:relative;display:flex;align-items:center;justify-content:center;padding:22px;
  background:
    radial-gradient(1100px 520px at 50% -10%,rgba(111,92,255,.09),transparent 62%),
    repeating-linear-gradient(45deg,#0c0c11 0 12px,#0b0b0f 12px 24px);
  overflow:auto;
}
.stage-inner{display:flex;flex-direction:column;align-items:center;gap:12px;max-width:100%}
.stage-hint{margin:0;font-size:11.5px;color:#5f5f70}

.device{transition:transform .25s ease,opacity .25s ease}
.device.is-hidden{display:none}

/* ---- desktop frame ---- */
.device-desktop{
  width:min(1040px,100%);border-radius:13px;overflow:hidden;background:#0e0e13;
  border:1px solid #2a2a36;box-shadow:0 26px 60px -18px rgba(0,0,0,.85),0 0 0 1px rgba(255,255,255,.03);
}
.browser-chrome{
  height:33px;display:flex;align-items:center;gap:6px;padding:0 12px;background:#15151c;
  border-bottom:1px solid #23232e;
}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block}
.dot.red{background:#ff5f57}.dot.amber{background:#febc2e}.dot.green{background:#28c840}
.url-pill{
  margin-left:12px;flex:1;background:#0f0f15;border:1px solid #23232e;border-radius:6px;
  padding:3px 10px;font-size:10.5px;color:#6e6e80;
}

/* ---- app inside frames ---- */
.app{
  background:#07070a;position:relative;display:flex;flex-direction:column;
  height:min(620px,calc(100vh - 210px));overflow:hidden;
}
.app-nav{
  display:flex;align-items:center;gap:22px;padding:12px 20px;flex:0 0 auto;
  background:linear-gradient(180deg,#0b0b10,rgba(7,7,10,.75));z-index:5;
}
.app-nav-logo{display:flex;align-items:center;gap:7px;color:var(--accent);font-weight:700;font-size:13.5px}
.app-nav-logo span{color:#e8e8f0}
.app-nav-links{display:flex;gap:17px;list-style:none;margin:0;padding:0;font-size:12px;color:#8a8a99}
.app-nav-links li{cursor:default;padding:4px 0;transition:color .15s}
.app-nav-links li.is-active{color:#fff;font-weight:600;position:relative}
.app-nav-links li.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);border-radius:2px;
}
.app-nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-pill{font-size:13px;color:#8a8a99}
.nav-avatar{
  width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;font-size:11px;
  font-weight:700;display:flex;align-items:center;justify-content:center;
}

.app-body{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;position:relative;scrollbar-width:thin}
.app-body::-webkit-scrollbar{width:8px}
.app-body::-webkit-scrollbar-thumb{background:#22222c;border-radius:8px}

/* ---- hero billboard ---- */
.hero{position:relative;height:230px;margin-top:-46px;display:flex;align-items:flex-end;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center 20%;
  transform:scale(1.04);
}
.hero-scrim{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,7,10,.96) 8%,rgba(7,7,10,.65) 45%,rgba(7,7,10,.15) 78%),
             linear-gradient(0deg,#07070a 2%,transparent 62%);
}
.hero-content{position:relative;padding:0 22px 18px;max-width:430px}
.hero-kicker{
  display:inline-block;font-size:9.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:#c9c1ff;background:rgba(111,92,255,.2);border:1px solid rgba(111,92,255,.4);
  padding:3px 7px;border-radius:5px;margin-bottom:8px;
}
.hero-title{margin:0 0 6px;font-size:22px;line-height:1.15;letter-spacing:-.02em;font-weight:700}
.hero-meta{display:flex;align-items:center;gap:8px;font-size:11px;color:#a3a3b4;margin-bottom:10px;flex-wrap:wrap}
.hero-rating{color:#ffd166;font-weight:700}
.hero-actions{display:flex;gap:8px}
.hero-btn{
  border:0;border-radius:7px;padding:7px 15px;font:inherit;font-size:11.5px;font-weight:650;cursor:default;
  display:flex;align-items:center;gap:6px;
}
.hero-btn.play{background:#fff;color:#111}
.hero-btn.more{background:rgba(255,255,255,.12);color:#f0f0f5;backdrop-filter:blur(6px)}

/* ---- rows ---- */
.rows-scroll{padding:16px 0 26px}
.prow{margin:0 0 22px}
.prow-head{display:flex;align-items:baseline;justify-content:space-between;padding:0 22px 9px}
.prow-title{font-size:14px;font-weight:650;letter-spacing:-.01em;margin:0}
.prow-count{font-size:10.5px;color:#6a6a7c}
.prow-track{
  display:flex;gap:10px;overflow-x:auto;padding:2px 22px 6px;scroll-behavior:smooth;
  scrollbar-width:none;
}
.prow-track::-webkit-scrollbar{display:none}

.pcard{
  flex:0 0 auto;width:112px;cursor:pointer;position:relative;
  transition:transform .16s ease;
}
.pcard:hover{transform:translateY(-3px)}
.pcard-art{
  position:relative;width:100%;aspect-ratio:2/3;border-radius:9px;overflow:hidden;
  background:linear-gradient(150deg,#1b1b25,#111117);border:1px solid #23232e;
}
.pcard-art img{width:100%;height:100%;object-fit:cover;display:block}
.pcard-art::after{
  content:"";position:absolute;inset:0;border-radius:9px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.05);pointer-events:none;
}
.pcard-badge{
  position:absolute;top:6px;left:6px;background:rgba(7,7,10,.82);backdrop-filter:blur(4px);
  color:#e8e8f0;font-size:9px;font-weight:700;padding:2px 5px;border-radius:4px;letter-spacing:.02em;
}
.pcard-fallback{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:10px;color:#5c5c6e;text-align:center;padding:8px;line-height:1.35;
}
.pcard-title{
  margin-top:6px;font-size:11px;line-height:1.3;color:#c9c9d6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pcard-sub{font-size:10px;color:#6d6d7e;margin-top:2px}

.skel .pcard-art{animation:pulse 1.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:.85}}

.empty-rows{
  padding:60px 24px;text-align:center;color:#6a6a7c;font-size:12.5px;line-height:1.6;
}

/* ---- mobile frame ---- */
.device-mobile{display:flex;justify-content:center}
.phone{
  width:352px;height:min(720px,calc(100vh - 170px));background:#000;border-radius:40px;
  padding:9px;border:1px solid #2a2a36;
  box-shadow:0 26px 60px -18px rgba(0,0,0,.9),inset 0 0 0 1px rgba(255,255,255,.04);
  position:relative;
}
.phone-notch{
  position:absolute;top:15px;left:50%;transform:translateX(-50%);width:96px;height:20px;
  background:#000;border-radius:12px;z-index:20;
}
.app-mobile{
  height:100%;border-radius:32px;overflow:hidden;background:#07070a;
}
.m-topbar{
  display:flex;justify-content:space-between;align-items:center;padding:16px 16px 8px;
  font-size:11.5px;color:#8a8a99;flex:0 0 auto;
}
.m-logo{color:var(--accent);font-weight:700}
.m-logo::first-letter{color:var(--accent)}
.m-tabbar{
  display:flex;justify-content:space-around;padding:9px 0 13px;border-top:1px solid #1b1b24;
  background:#0a0a0f;font-size:10px;color:#6d6d7e;flex:0 0 auto;
}
.m-tabbar .is-active{color:var(--accent);font-weight:700}

.app-mobile .hero{height:196px;margin-top:-8px}
.app-mobile .hero-content{padding:0 15px 13px;max-width:100%}
.app-mobile .hero-title{font-size:17px}
.app-mobile .hero-meta{font-size:10px;margin-bottom:8px}
.app-mobile .hero-btn{padding:6px 12px;font-size:10.5px}
.app-mobile .prow-head{padding:0 15px 8px}
.app-mobile .prow-title{font-size:12.5px}
.app-mobile .prow-track{padding:2px 15px 5px;gap:8px}
.app-mobile .pcard{width:88px}
.app-mobile .pcard-title{font-size:10px}
.app-mobile .prow{margin-bottom:16px}

/* ================= toast ================= */
.toast{
  position:fixed;bottom:18px;left:50%;transform:translate(-50%,14px);opacity:0;pointer-events:none;
  background:#1d1d27;border:1px solid #30303e;color:#e8e8f0;font-size:12px;padding:9px 15px;
  border-radius:9px;transition:opacity .2s,transform .2s;z-index:99;
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ================= responsive ================= */
@media (max-width:1080px){
  .shell{grid-template-columns:308px 1fr}
  .editor-sub{display:none}
}
@media (max-width:820px){
  body{overflow:auto}
  .shell{grid-template-columns:1fr;grid-template-rows:auto auto}
  .editor{border-right:0;border-bottom:1px solid var(--line);max-height:46vh}
  .stage{padding:16px 10px 26px}
  .device-desktop{width:100%}
  .app{height:min(520px,58vh)}
  .brand-sub{display:none}
}