:root{
  --pri:#2e6bf0; --pri2:#5b8df6; --pri-d:#1f51c9; --pri-soft:#eaf1ff;
  --ink:#19223a; --ink2:#5a6781; --muted:#97a2bb; --line:#eceff7;
  --bg:#f4f7fd; --card:#ffffff; --accent:#ff7a59; --good:#16b981; --bad:#ef5350; --warn:#e09b00;
  --sh-sm:0 1px 2px rgba(22,44,98,.04), 0 8px 20px -14px rgba(30,64,150,.22);
  --sh:0 1px 3px rgba(22,44,98,.04), 0 22px 46px -28px rgba(30,64,150,.26);
  --sh-lg:0 32px 70px -30px rgba(30,64,150,.34);
  --r:20px; --r-sm:13px;
  --head:'Plus Jakarta Sans','Nunito',system-ui,'PingFang SC',sans-serif;
  --body:'Nunito',system-ui,'PingFang SC',sans-serif;
  --side:252px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--body);color:var(--ink);
  background:radial-gradient(120% 80% at 80% -10%,#eaf1ff 0%,rgba(234,241,255,0) 55%),
             radial-gradient(90% 70% at -10% 0%,#eef3fe 0%,rgba(238,243,254,0) 50%),
             #f4f7fd;background-attachment:fixed}
b{font-weight:800}
button,select,input,textarea{font-family:inherit}
.hidden{display:none!important}
svg{width:100%;height:100%;display:block}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#dbe2f2;border-radius:99px;border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:#c7d1ea;background-clip:content-box}

/* ===== layout ===== */
.app{display:flex;min-height:100vh}
.sidebar{width:var(--side);flex:none;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:5px;
  padding:20px 15px;background:#fff;border-right:1px solid var(--line)}
.main{flex:1;min-width:0;padding:28px 38px 72px}
.main-top{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
#pageTitle{font-family:var(--head);font-size:1.62rem;font-weight:800;letter-spacing:-.6px;color:var(--ink)}
.crumb{color:var(--ink2);font-weight:600;margin-top:4px;font-size:.95rem}
.mt-r{display:flex;gap:10px;align-items:center}

/* logo */
.logo{display:flex;align-items:center;gap:11px;padding:8px 8px 18px}
.logo-badge{width:40px;height:40px;display:grid;place-items:center;border-radius:13px;
  background:linear-gradient(135deg,var(--pri),var(--pri2));box-shadow:0 10px 20px -8px rgba(46,107,240,.6)}
.logo-badge svg{width:24px;height:24px}
.logo-txt{font-family:var(--head);font-weight:800;font-size:1.12rem;line-height:1.1;color:var(--ink)}
.logo-txt b{color:var(--pri);font-weight:800}
.logo-txt span{display:block;font-family:var(--body);font-weight:700;font-size:.7rem;color:var(--muted);margin-top:3px;letter-spacing:.02em}

/* project switch */
.proj{background:#f7f9ff;border:1px solid var(--line);border-radius:14px;padding:11px 12px;margin:2px 2px 12px}
.proj label{display:block;font-size:.68rem;font-weight:800;letter-spacing:.1em;color:var(--muted);margin-bottom:7px;text-transform:uppercase}
#projSelect{width:100%;border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-weight:700;color:var(--ink);background:#fff;cursor:pointer}
.newproj{width:100%;margin-top:8px;border:1px dashed #c5d3f3;background:#fff;color:var(--pri);font-weight:800;border-radius:10px;padding:9px;cursor:pointer;transition:.18s}
.newproj:hover{background:var(--pri-soft);border-style:solid}
.proj-acts{display:flex;gap:14px;margin-top:9px;padding:0 2px}
.proj-acts a{font-size:.78rem;font-weight:700;color:var(--ink2);cursor:pointer}
.proj-acts a:hover{color:var(--pri)}
.proj-acts a:last-child:hover{color:var(--bad)}

/* nav */
.nav{display:flex;flex-direction:column;gap:3px;padding:0 2px}
.nav-label{font-size:.66rem;font-weight:800;letter-spacing:.13em;color:var(--muted);text-transform:uppercase;padding:10px 12px 6px}
.nav-item{display:flex;align-items:center;gap:11px;width:100%;border:none;background:transparent;cursor:pointer;
  padding:8px 11px;border-radius:13px;color:var(--ink2);font-weight:700;font-size:.95rem;transition:.16s;text-decoration:none}
.nav-item .ico{width:33px;height:33px;flex:none;display:grid;place-items:center;border-radius:10px;background:#f1f4fb;color:var(--ink2);padding:7px;transition:.16s}
.nav-item .t{flex:1;text-align:left}
.nav-item .n{font-size:.7rem;font-weight:800;color:var(--muted);background:#f1f4fb;width:19px;height:19px;border-radius:7px;display:grid;place-items:center}
.nav-item .ext{color:var(--muted)}
.nav-item:hover{background:#f6f8fd;color:var(--ink)}
.nav-item:hover .ico{background:var(--pri-soft);color:var(--pri)}
.nav-item.active{background:var(--pri-soft);color:var(--pri-d)}
.nav-item.active .ico{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 8px 16px -7px rgba(46,107,240,.7)}
.nav-item.active .n{background:var(--pri);color:#fff}
.nav-sep{height:1px;background:var(--line);margin:12px 10px}
.side-foot{margin-top:auto;padding:12px 8px 2px;border-top:1px solid var(--line)}
.key-pill{font-size:.72rem;font-weight:800;padding:5px 11px;border-radius:99px;background:#fff1ee;color:var(--bad)}
.key-pill.ok{background:#e6f7f0;color:var(--good)}
.ver{font-size:.7rem;color:var(--muted);font-weight:700}

/* ===== cards ===== */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh);margin-bottom:20px}
.card>h2,.sec-h{font-family:var(--head);font-size:1.12rem;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:4px;color:var(--ink)}
.sec-h .dot{width:6px;height:17px;border-radius:99px;background:linear-gradient(var(--pri),var(--pri2))}
.card .hint,.hint{color:var(--ink2);font-size:.91rem;line-height:1.5}
.card>.hint{margin-bottom:18px}
.frost{background:linear-gradient(135deg,#fff,#f6f9ff)}

.row{display:flex;gap:18px;flex-wrap:wrap}
.col{flex:1;min-width:260px}
label.fld{display:block;font-weight:800;font-size:.85rem;margin:14px 0 6px;color:var(--ink)}
input[type=text],input[type=email],input[type=password],textarea,select.in{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 14px;font-size:.95rem;font-weight:600;color:var(--ink);background:#f8fafe;outline:none;transition:.15s}
textarea{resize:vertical;min-height:88px;line-height:1.55}
input:focus,textarea:focus,select.in:focus{border-color:var(--pri2);box-shadow:0 0 0 4px rgba(46,107,240,.12);background:#fff}
input[type=file]{font-size:.85rem;font-weight:700;color:var(--ink2)}
input::placeholder{color:#aeb8cf;font-weight:600}
.inline{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* buttons */
.btn{font-family:var(--head);font-weight:700;border:none;cursor:pointer;border-radius:12px;padding:11px 20px;font-size:.93rem;white-space:nowrap;
  background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;transition:.18s;box-shadow:0 10px 22px -12px rgba(46,107,240,.85);display:inline-flex;align-items:center;justify-content:center;gap:7px}
.btn:hover{transform:translateY(-1px);box-shadow:0 16px 28px -12px rgba(46,107,240,.95)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.ghost{background:#fff;color:var(--pri-d);border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{background:var(--pri-soft);border-color:#cdd9f6}
.btn.accent{background:linear-gradient(135deg,#ff9166,#ff6f43);box-shadow:0 10px 22px -12px rgba(255,111,67,.85)}
.btn.sm{padding:7px 13px;font-size:.83rem;border-radius:10px}
.btn.danger{background:#fff;color:var(--bad);border:1px solid #f6d2cf;box-shadow:none}

/* ===== generate layout (3-col) ===== */
.studio-grid{display:grid;grid-template-columns:380px 1fr 232px;gap:20px;align-items:start}
.studio-grid .pane{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh)}
.preview-pane{min-height:520px;display:flex;flex-direction:column}
.preview-stage{flex:1;border-radius:15px;background:linear-gradient(135deg,#f5f8ff,#eef3fe);border:1px solid var(--line);display:grid;place-items:center;overflow:hidden;position:relative;height:clamp(360px,46vh,540px)}
.preview-stage img,.preview-stage video{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:10px}
.preview-stage .ph{color:var(--muted);font-weight:700;text-align:center;padding:30px;line-height:1.6}
.preview-stage .ph .big{font-size:2.6rem;margin-bottom:10px;opacity:.7}
.preview-bar{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.history-pane h3,.preview-pane h3,.ctrl-pane h3{font-family:var(--head);font-size:.95rem;font-weight:800;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between}
.hist-list{display:flex;flex-direction:column;gap:10px;max-height:560px;overflow:auto;padding-right:2px}
.hist-item{border:2px solid transparent;border-radius:12px;overflow:hidden;cursor:pointer;background:#f3f7ff;aspect-ratio:1/1;transition:.15s}
.hist-item:hover{border-color:#cdd9f6}
.hist-item.sel{border-color:var(--pri)}
.hist-item img,.hist-item video{width:100%;height:100%;object-fit:cover;display:block}
.hist-empty{color:var(--muted);font-size:.83rem;text-align:center;padding:24px 6px;font-weight:600;line-height:1.6}

.badge-soft{display:inline-block;font-size:.72rem;font-weight:800;padding:3px 11px;border-radius:99px;background:var(--pri-soft);color:var(--pri-d)}

/* style tiles */
.styles{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.style-tile{border:2px solid transparent;border-radius:14px;cursor:pointer;background:#fff;overflow:hidden;transition:.18s;box-shadow:var(--sh-sm)}
.style-tile:hover{transform:translateY(-2px);box-shadow:var(--sh)}
.style-tile.sel{border-color:var(--pri);box-shadow:0 14px 26px -14px rgba(46,107,240,.6)}
.style-tile .thumb{aspect-ratio:1/1;display:grid;place-items:center;position:relative;color:#fff}
.style-tile .thumb svg{width:40px;height:40px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.16))}
.style-tile .thumb .tag{position:absolute;top:6px;right:6px;font-size:.58rem;font-weight:800;color:#fff;background:rgba(0,0,0,.26);padding:2px 7px;border-radius:99px;backdrop-filter:blur(4px)}
.style-tile.sel .thumb::after{content:"✓";position:absolute;left:6px;top:5px;width:20px;height:20px;background:var(--pri);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:.7rem;font-weight:800}
.style-tile .nm{font-family:var(--head);font-weight:700;font-size:.8rem;padding:7px 9px 9px;text-align:center;line-height:1.2}

/* seg */
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg .opt{border:1px solid var(--line);background:#fff;border-radius:10px;padding:7px 13px;font-weight:800;font-size:.84rem;cursor:pointer;color:var(--ink2);transition:.15s}
.seg .opt:hover{border-color:#cdd9f6;color:var(--ink)}
.seg .opt.on{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;border-color:transparent;box-shadow:0 8px 14px -8px rgba(46,107,240,.7)}

/* gallery & tiles */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px;margin-top:10px}
.tile{border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff;position:relative;box-shadow:var(--sh-sm);transition:.2s}
.tile:hover{transform:translateY(-3px);box-shadow:var(--sh)}
.tile .m{aspect-ratio:1/1;background:#f0f5ff;display:grid;place-items:center;overflow:hidden}
.tile .m img,.tile .m video{width:100%;height:100%;object-fit:cover}
.tile .cap{padding:10px 12px;font-weight:700;font-size:.83rem;display:flex;justify-content:space-between;align-items:center;gap:6px}
.tile .cap .role{font-size:.62rem;font-weight:800;padding:2px 8px;border-radius:99px;background:var(--pri-soft);color:var(--muted)}
.tile .cap .role.master{background:#fff1ec;color:var(--accent)}
.tile .cap .role.video{background:var(--pri-soft);color:var(--pri)}
.tile .ops{position:absolute;top:8px;right:8px;display:flex;gap:5px;opacity:0;transition:.2s}
.tile:hover .ops{opacity:1}
.tile .ops button{border:none;cursor:pointer;width:28px;height:28px;border-radius:9px;background:rgba(255,255,255,.96);box-shadow:var(--sh-sm);font-size:.9rem}

.master-box{display:flex;gap:14px;align-items:center;background:linear-gradient(135deg,var(--pri-soft),#f6f9ff);border:1px solid var(--line);border-radius:15px;padding:15px}
.master-box img{width:86px;height:86px;border-radius:13px;object-fit:cover;background:#fff;box-shadow:var(--sh-sm)}

/* action rows */
.act-row{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:13px;padding:10px 12px;margin-bottom:9px;background:#f8fafe;transition:.15s}
.act-row:hover{border-color:#dbe3f7}
.act-row .lab{flex:none;width:92px;font-weight:800;color:var(--pri-d);border:none;background:transparent;padding:6px 2px;font-size:.93rem}
.act-row textarea{flex:1;width:auto;min-height:44px;margin:0}
.act-ops{flex:none;display:flex;align-items:center;gap:9px}
.act-ops .badge{min-width:52px;text-align:center}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 14px}
.chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:7px 14px;font-size:.84rem;font-weight:800;color:var(--ink2);cursor:pointer;transition:.15s;box-shadow:var(--sh-sm)}
.chip:hover{border-color:var(--pri2);color:var(--pri-d);background:var(--pri-soft);transform:translateY(-1px)}

/* status */
.badge{font-size:.71rem;font-weight:800;padding:3px 10px;border-radius:99px}
.badge.run{background:#fff5df;color:var(--warn)}
.badge.ok{background:#e6f7f0;color:var(--good)}
.badge.err{background:#fff1ee;color:var(--bad)}
.spinner{width:15px;height:15px;border:2px solid rgba(46,107,240,.22);border-top-color:var(--pri);border-radius:50%;display:inline-block;animation:spin .7s linear infinite;vertical-align:-2px}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{text-align:center;color:var(--muted);padding:46px 0;font-weight:700;line-height:1.6}

/* toast + modal */
.toast{position:fixed;bottom:26px;left:calc(50% + var(--side)/2);transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;
  padding:12px 24px;border-radius:13px;font-weight:800;opacity:0;pointer-events:none;transition:.3s;z-index:10010;box-shadow:var(--sh-lg)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.bad{background:var(--bad)}
.modal{position:fixed;inset:0;background:rgba(25,34,58,.46);backdrop-filter:blur(6px);display:grid;place-items:center;z-index:70;padding:20px}
.modal-card{background:#fff;border-radius:22px;padding:28px;max-width:500px;width:100%;max-height:88vh;overflow:auto;box-shadow:var(--sh-lg)}
.cap-tag{font-size:.66rem;font-weight:800;color:var(--pri);background:var(--pri-soft);padding:2px 9px;border-radius:99px;letter-spacing:.02em}
.modal-card h3{font-family:var(--head);font-weight:800;font-size:1.22rem;margin-bottom:14px}
.modal-card .acts{display:flex;gap:10px;justify-content:flex-end;margin-top:22px}
.tip{background:#f3f7ff;border:1px solid var(--line);border-radius:13px;padding:13px 15px;font-size:.87rem;color:var(--ink2);margin-top:12px}
.tip b{color:var(--pri-d)}

/* works wall */
.work-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;margin-top:10px}
.work{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;text-decoration:none;color:inherit;display:block;transition:.2s;box-shadow:var(--sh-sm)}
.work:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.work .th{aspect-ratio:16/10;background:#f0f5ff;overflow:hidden}
.work .th img,.work .th video{width:100%;height:100%;object-fit:cover}
.work .t{padding:13px 15px;font-weight:800}

@media(max-width:1180px){.studio-grid{grid-template-columns:340px 1fr}.history-pane{grid-column:1/-1}.hist-list{flex-direction:row;max-height:none}.hist-item{width:120px;flex:none}}
@media(max-width:900px){.sidebar{display:none}.studio-grid{grid-template-columns:1fr}.main{padding:20px}.toast{left:50%}}