:root{
  --header-h:64px;
  --safe-top:env(safe-area-inset-top,0px);
  --safe-right:env(safe-area-inset-right,0px);
  --safe-bottom:env(safe-area-inset-bottom,0px);
  --safe-left:env(safe-area-inset-left,0px);
  --bg:#05060d;
  --bg2:#0a0c14;
  --card:#0e101a;
  --elev:#14172a;
  --border:#1e2238;
  --border-h:#2a2f4a;
  --t1:#eef0f9;
  --t2:#9ca0c2;
  --t3:#5a5f82;
  --accent:#6366f1;
  --accent-l:#818cf8;
  --accent-g:rgba(99,102,241,.2);
  --teal:#22d3d3;
  --green:#34d399;
  --red:#f87171;
  --pink:#f472b6;
  --orange:#fb923c;
  --grad:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#22d3d3 100%);
  --grad2:linear-gradient(135deg,#f472b6 0%,#fb923c 100%);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:22px;
  --shadow:0 4px 24px rgba(0,0,0,.25);
  --shadow-lg:0 20px 50px rgba(0,0,0,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
/* Nothing may exceed the viewport width */
img,svg,video,canvas,picture{max-width:100%}
input,select,textarea{max-width:100%}
html{overflow-x:hidden}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--t1);
  min-height:100vh;
  min-height:100dvh;
  overflow-x:hidden;
  font-size:14px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
  padding-left:var(--safe-left);
  padding-right:var(--safe-right);
}
body.chat-drawer-open{overflow:hidden}
button,input,select,textarea{-webkit-tap-highlight-color:transparent}
.amb{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(140px);animation:orbF 28s ease-in-out infinite}
.orb:nth-child(1){width:680px;height:680px;top:-15%;left:-10%;background:#6366f1;opacity:.06}
.orb:nth-child(2){width:520px;height:520px;bottom:-15%;right:-10%;background:#22d3d3;opacity:.045;animation-delay:-9s}
.orb:nth-child(3){width:400px;height:400px;top:40%;left:50%;background:#a78bfa;opacity:.04;animation-delay:-18s}
@keyframes orbF{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(40px,-30px) scale(1.05)}66%{transform:translate(-20px,20px) scale(.96)}}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.4;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.04'/%3E%3C/svg%3E")}
.app{position:relative;z-index:2;min-height:100vh;display:flex;flex-direction:column}

/* Header */
header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 36px;
  padding-top:calc(14px + var(--safe-top));
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(28px);
  -webkit-backdrop-filter:blur(28px);
  background:rgba(5,6,13,.82);
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 1px 0 rgba(255,255,255,.03);
  gap:12px;
  min-width:0;
}
.hdr-l{display:flex;align-items:center;gap:12px}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:rgba(20,23,42,.65);
  border:1px solid rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  box-shadow:0 4px 20px var(--accent-g), inset 0 1px 0 rgba(255,255,255,.1);
}
.logo-mark img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.logo-name{font-family:var(--font-display);font-weight:800;font-size:clamp(15px,4.5vw,20px);background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.5px;white-space:nowrap}

/* Mode tabs */
.mode-tabs{display:flex;gap:2px;background:var(--bg2);padding:4px;border-radius:var(--r-sm);border:1px solid var(--border);box-shadow:inset 0 1px 0 rgba(0,0,0,.2)}
.mode-tab{
  padding:8px 16px;
  border-radius:8px;
  font-size:12px;
  font-weight:600;
  color:var(--t3);
  cursor:pointer;
  border:none;
  background:transparent;
  font-family:var(--font-display);
  transition:all .25s ease;
  display:flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}
.mode-tab:hover{color:var(--t2)}
.mode-tab.on{background:var(--elev);color:var(--t1);box-shadow:var(--shadow)}
.mode-tab .dot{width:6px;height:6px;border-radius:50%;flex-shrink:0}
.mode-tab:nth-child(1) .dot{background:var(--accent-l)}
.mode-tab:nth-child(2) .dot{background:var(--pink)}
.mode-tab:nth-child(3) .dot{background:var(--teal)}
.mode-tab:nth-child(4) .dot{background:#a78bfa}
.mode-tab:nth-child(5) .dot{background:var(--orange)}
.mode-tab:nth-child(6) .dot{background:#f59e0b}

/* Mode dropdown (mobile only) */
.mode-select{display:none;padding:8px 12px;border-radius:var(--r-sm);background:var(--bg2);border:1px solid var(--border);color:var(--t1);font-size:13px;font-weight:600;font-family:var(--font-display);cursor:pointer;outline:none;min-width:0;flex:1;max-width:100%;-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca0c2' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:28px}
.mode-select:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-g)}
.mode-select option{background:var(--card);color:var(--t1)}

.api-pill{display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:100px;background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.2);font-size:11px;color:var(--green);font-weight:600;font-family:var(--font-display)}
.api-dot{width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 2s ease-in-out infinite;flex-shrink:0}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}

/* Layout */
main{flex:1;display:flex;flex-direction:column;max-width:1560px;width:100%;margin:0 auto;padding:clamp(12px,3vw,28px) clamp(8px,3.5vw,36px);gap:0}
main:has(.chat-workspace.active){max-width:100%;padding:16px 24px 20px}
.studio-layout{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:0}
.studio-layout.hidden{display:none}
.panel-l{padding-right:28px;border-right:1px solid var(--border);display:flex;flex-direction:column;gap:22px}
.panel-r{padding-left:28px;display:flex;flex-direction:column;gap:22px}
.sec-label{font-family:var(--font-display);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:2.5px;color:var(--t3)}

/* Upload zones */
.upload-box{
  position:relative;
  border:2px dashed var(--border);
  border-radius:var(--r-lg);
  background:var(--bg2);
  min-height:168px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:all .3s cubic-bezier(.2,0,.1,1);
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
}
.upload-box:hover,.upload-box.drag{border-color:var(--accent-l);background:rgba(99,102,241,.04);box-shadow:0 0 0 1px rgba(99,102,241,.1)}
.upload-box.has{border-style:solid;border-color:var(--border);cursor:default;padding:0}
.upload-box.has .up-ph{display:none}
.up-ph{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px}
.up-ico{width:48px;height:48px;border-radius:14px;background:var(--elev);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.03)}
.up-ico svg{width:22px;height:22px;color:var(--accent-l)}
.up-t{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--t1);text-align:center;white-space:normal;word-break:break-word}
.up-s{font-size:12px;color:var(--t3);text-align:center}
.up-url-btn{padding:6px 16px;border-radius:100px;background:var(--elev);border:1px solid var(--border);color:var(--t2);font-size:11px;font-weight:500;cursor:pointer;transition:all .2s;font-family:inherit;margin-top:4px}
.up-url-btn:hover{border-color:var(--accent);color:var(--accent-l);background:rgba(99,102,241,.08)}
.prev-wrap{display:none;position:relative;width:100%;height:100%}
.upload-box.has .prev-wrap{display:block}
.prev-img{width:100%;height:168px;object-fit:contain;border-radius:var(--r-lg);background:var(--bg)}
.prev-ov{position:absolute;inset:0;background:linear-gradient(to top,rgba(5,6,13,.9) 0%,transparent 50%);border-radius:var(--r-lg);display:flex;align-items:flex-end;padding:12px}
.prev-acts{display:flex;gap:8px;width:100%;align-items:center}
.prev-btn{padding:6px 14px;border-radius:100px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);backdrop-filter:blur(12px);color:#fff;font-size:11px;font-weight:500;cursor:pointer;transition:all .2s;font-family:inherit}
.prev-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2)}
.prev-btn.del:hover{background:rgba(248,113,113,.15);border-color:var(--red);color:var(--red)}
.up-stat{margin-left:auto;font-size:10px;font-weight:600;padding:4px 10px;border-radius:100px}
.up-stat.ing{color:var(--accent-l);background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.25)}
.up-stat.ok{color:var(--green);background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.25)}
.up-stat.fail{color:var(--red);background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.25)}

/* Prompt */
.prompt-wrap{position:relative;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-md);transition:border-color .25s,box-shadow .25s;box-shadow:inset 0 1px 0 rgba(255,255,255,.02)}
.prompt-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-g)}
.prompt-ta{width:100%;min-height:92px;max-height:160px;padding:14px 16px 48px;background:transparent;border:none;outline:none;color:var(--t1);font-size:16px;line-height:1.65;font-family:var(--font-body);resize:vertical}
.prompt-ta::placeholder{color:var(--t3)}
.prompt-bot{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-top:1px solid var(--border);background:rgba(10,12,20,.6);border-radius:0 0 var(--r-md) var(--r-md)}
.hints{display:flex;gap:6px;flex-wrap:wrap}
.hint{padding:4px 10px;border-radius:100px;background:var(--elev);border:1px solid var(--border);font-size:10px;color:var(--t3);cursor:pointer;transition:all .2s;white-space:nowrap;font-family:inherit}
.hint:hover{border-color:var(--accent);color:var(--accent-l);background:rgba(99,102,241,.06)}
.cc{font-size:11px;color:var(--t3);font-variant-numeric:tabular-nums}

/* Settings */
.set-tog{display:flex;align-items:center;gap:8px;padding:8px 0;cursor:pointer;user-select:none}
.set-tog span{font-size:12px;font-weight:500;color:var(--t2)}
.set-arr{font-size:10px;color:var(--t3);transition:transform .3s}.set-arr.open{transform:rotate(180deg)}
.set-panel{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.2,0,.1,1)}.set-panel.open{max-height:400px}
.set-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:6px}
.set-lbl{font-size:11px;font-weight:500;color:var(--t2);display:flex;align-items:center;justify-content:space-between;margin-bottom:5px}
.set-val{font-size:10px;color:var(--accent-l);font-variant-numeric:tabular-nums}
.set-inp,.set-sel{padding:9px 12px;border-radius:var(--r-sm);background:var(--bg);border:1px solid var(--border);color:var(--t1);font-size:16px;font-family:inherit;outline:none;transition:border-color .2s;width:100%}
.set-inp:focus,.set-sel:focus{border-color:var(--accent)}
.set-sel{cursor:pointer;-webkit-appearance:none;appearance:none}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:5px;background:var(--border);border-radius:3px;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);border:2px solid var(--bg);cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,.2)}

/* Buttons */
.gen-btn{
  position:relative;
  width:100%;
  padding:15px 26px;
  border:none;
  border-radius:var(--r-md);
  background:var(--grad);
  color:#fff;
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  overflow:hidden;
  transition:transform .2s,box-shadow .25s;
  box-shadow:0 4px 20px var(--accent-g), inset 0 1px 0 rgba(255,255,255,.15);
}
.gen-btn.fs-btn{background:var(--grad2);box-shadow:0 4px 20px rgba(244,114,182,.25), inset 0 1px 0 rgba(255,255,255,.1)}
.gen-btn.t2i-btn{background:linear-gradient(135deg,#22d3d3 0%,#6366f1 100%);box-shadow:0 4px 20px rgba(34,211,211,.25), inset 0 1px 0 rgba(255,255,255,.1)}
.gen-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 32px var(--accent-g)}
.gen-btn:active:not(:disabled){transform:translateY(0)}
.gen-btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.gen-btn .shimmer{position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.15),transparent);transform:translateX(-100%)}
.gen-btn:hover:not(:disabled) .shimmer{animation:shim 1.5s ease infinite}
@keyframes shim{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.btn-c{display:flex;align-items:center;justify-content:center;gap:10px}
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:spin .65s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* Progress */
.prog{display:flex;flex-direction:column;gap:8px}
.prog-track{height:4px;background:var(--border);border-radius:3px;overflow:hidden}
.prog-fill{height:100%;background:var(--grad);border-radius:3px;transition:width .5s ease}
.prog-row{display:flex;justify-content:space-between;font-size:11px}
.prog-msg{color:var(--t2)}.prog-time{color:var(--t3);font-variant-numeric:tabular-nums}

/* Result canvas */
.out-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.out-tabs{display:flex;gap:2px;background:var(--bg2);padding:4px;border-radius:var(--r-sm);border:1px solid var(--border);box-shadow:inset 0 1px 0 rgba(0,0,0,.15)}
.out-tab{padding:6px 14px;border-radius:8px;font-size:11px;font-weight:500;color:var(--t3);cursor:pointer;border:none;background:transparent;font-family:var(--font-display);transition:all .2s}
.out-tab:hover{color:var(--t2)}
.out-tab.on{background:var(--elev);color:var(--t1);box-shadow:var(--shadow)}
.canvas{flex:1;min-height:360px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-lg);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.02)}
.empty{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;padding:40px 24px}
.empty-ico{width:64px;height:64px;border-radius:18px;background:var(--elev);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.03)}
.empty-ico svg{width:28px;height:28px;color:var(--t3)}
.empty-t{font-family:var(--font-display);font-size:16px;font-weight:600;color:var(--t2)}
.empty-s{font-size:12px;color:var(--t3);line-height:1.65;max-width:260px}
.result{display:none;width:100%;height:100%;flex-direction:column}
.result.on{display:flex}
.result-img{width:100%;flex:1;object-fit:contain;border-radius:var(--r-lg);background:var(--bg)}
.result-acts{position:absolute;bottom:14px;right:14px;display:flex;gap:8px}
.res-btn{padding:8px 16px;border-radius:100px;background:rgba(0,0,0,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.12);color:#fff;font-size:11px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s;font-family:inherit;text-decoration:none}
.res-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2)}
.res-btn svg{width:13px;height:13px;flex-shrink:0}

/* Compare */
.compare{display:none;width:100%;height:100%;position:relative;overflow:hidden;border-radius:var(--r-lg);cursor:col-resize;touch-action:none}
.compare.on{display:block}
.compare img{width:100%;height:100%;object-fit:contain;position:absolute;inset:0}
.comp-line{position:absolute;top:0;bottom:0;width:2px;background:rgba(255,255,255,.6);z-index:10;pointer-events:none;box-shadow:0 0 8px rgba(0,0,0,.3)}
.comp-handle{position:absolute;top:50%;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.12);backdrop-filter:blur(12px);border:2px solid rgba(255,255,255,.35);z-index:11;transform:translate(-50%,-50%);pointer-events:none;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(0,0,0,.25)}
.comp-handle svg{width:14px;height:14px;color:#fff}
.comp-lbl{position:absolute;top:10px;padding:4px 10px;border-radius:100px;font-size:9px;font-weight:700;letter-spacing:.6px;z-index:10;backdrop-filter:blur(10px)}
.comp-lbl.before{left:10px;background:rgba(0,0,0,.5);color:var(--t2)}.comp-lbl.after{right:10px;background:var(--accent);color:#fff}

/* History */
.hist{border-top:1px solid var(--border);padding-top:16px}
.hist-list{display:flex;flex-direction:column;gap:6px;max-height:150px;overflow-y:auto}
.hist-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-sm);background:var(--bg2);border:1px solid var(--border);cursor:pointer;transition:all .2s}
.hist-item:hover{border-color:var(--border-h);background:var(--elev);box-shadow:0 2px 8px rgba(0,0,0,.15)}
.hist-thumb{width:38px;height:38px;border-radius:9px;object-fit:cover;flex-shrink:0}
.hist-thumb-vid{display:flex;align-items:center;justify-content:center;background:var(--elev);border:1px solid var(--border);color:var(--t2);font-size:14px}
.hist-info{flex:1;min-width:0}
.hist-p{font-size:11px;color:var(--t2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hist-time{font-size:10px;color:var(--t3)}

/* FaceSwap specific */
.fs-uploads{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fs-uploads .upload-box{min-height:150px}
.fs-label{font-size:10px;font-weight:600;color:var(--t2);margin-bottom:6px;display:flex;align-items:center;gap:6px}
.fs-label .badge{font-size:8px;padding:2px 6px;border-radius:100px;font-weight:700;letter-spacing:.5px}
.fs-label .badge.src{background:rgba(244,114,182,.1);color:var(--pink);border:1px solid rgba(244,114,182,.2)}
.fs-label .badge.tgt{background:rgba(45,212,191,.1);color:var(--teal);border:1px solid rgba(45,212,191,.2)}
.swap-arrow{display:flex;align-items:center;justify-content:center;padding:8px 0}
.swap-arrow svg{width:28px;height:28px;color:var(--t3)}

/* Modal */
.modal-bg{display:none;position:fixed;inset:0;z-index:1500;background:rgba(0,0,0,.6);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);align-items:center;justify-content:center}
.modal-bg.on{display:flex}
.modal-box{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:26px;width:460px;box-shadow:var(--shadow-lg);animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.modal-title{font-family:var(--font-display);font-size:17px;font-weight:700;margin-bottom:14px;color:var(--t1)}
.modal-row{display:flex;gap:10px}
.modal-row input{flex:1;padding:11px 14px;border-radius:var(--r-sm);background:var(--bg);border:1px solid var(--border);color:var(--t1);font-size:13px;outline:none;font-family:inherit}
.modal-row input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-g)}
.modal-row input::placeholder{color:var(--t3)}

/* Header auth */
.hdr-r{display:flex;align-items:center;gap:14px;flex-shrink:0}
.auth-area{display:flex;align-items:center;gap:8px}
.auth-btn{
  padding:7px 14px;
  border-radius:8px;
  font-size:12px;
  font-weight:600;
  font-family:var(--font-display);
  cursor:pointer;
  border:1px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
.auth-btn.ghost{background:transparent;border-color:var(--border);color:var(--t2)}
.auth-btn.ghost:hover{border-color:var(--border-h);color:var(--t1);background:var(--elev)}
.auth-btn.primary{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 4px 16px var(--accent-g)}
.auth-btn.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.auth-user-pill{
  display:flex;
  align-items:center;
  gap:8px;
  padding:5px 12px 5px 5px;
  border-radius:100px;
  background:var(--elev);
  border:1px solid var(--border);
}
.auth-avatar{
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--grad);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-display);
  font-size:11px;
  font-weight:700;
  color:#fff;
  flex-shrink:0;
}
.auth-user-name{font-size:12px;font-weight:600;color:var(--t1);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Auth modal */
.auth-modal-bg{z-index:1600}
.auth-modal{
  position:relative;
  width:420px;
  max-width:calc(100vw - 32px);
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:28px 30px 24px;
  box-shadow:var(--shadow-lg),0 0 0 1px rgba(255,255,255,.03) inset;
  animation:fadeUp .35s ease;
  overflow:hidden;
}
.auth-modal::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:var(--grad);
}
.auth-close{
  position:absolute;
  top:14px;
  right:14px;
  width:32px;
  height:32px;
  border-radius:8px;
  border:1px solid var(--border);
  background:var(--elev);
  color:var(--t3);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all .2s;
}
.auth-close svg{width:16px;height:16px}
.auth-close:hover{border-color:var(--border-h);color:var(--t1);background:var(--bg2)}
.auth-modal-brand{display:flex;align-items:center;gap:14px;margin-bottom:22px;padding-right:36px}
.auth-modal-logo{
  width:48px;
  height:48px;
  border-radius:14px;
  background:rgba(20,23,42,.65);
  border:1px solid rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  flex-shrink:0;
  box-shadow:0 6px 24px var(--accent-g);
}
.auth-modal-logo img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.auth-modal-title{font-family:var(--font-display);font-size:20px;font-weight:700;color:var(--t1);letter-spacing:-.3px;line-height:1.2}
.auth-modal-sub{font-size:12px;color:var(--t3);margin-top:4px;line-height:1.4}
.auth-tabs{
  display:flex;
  gap:4px;
  padding:4px;
  background:var(--bg2);
  border:1px solid var(--border);
  border-radius:var(--r-sm);
  margin-bottom:20px;
}
.auth-tab{
  flex:1;
  padding:9px 12px;
  border:none;
  border-radius:7px;
  background:transparent;
  color:var(--t3);
  font-size:12px;
  font-weight:600;
  font-family:var(--font-display);
  cursor:pointer;
  transition:all .2s;
}
.auth-tab:hover{color:var(--t2)}
.auth-tab.on{background:var(--elev);color:var(--t1);box-shadow:var(--shadow)}
.auth-form{display:flex;flex-direction:column;gap:14px}
.auth-field{display:flex;flex-direction:column;gap:6px}
.auth-field label{font-size:11px;font-weight:600;color:var(--t2);letter-spacing:.3px}
.auth-field input{
  padding:11px 14px;
  border-radius:var(--r-sm);
  background:var(--bg);
  border:1px solid var(--border);
  color:var(--t1);
  font-size:13px;
  font-family:inherit;
  outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.auth-field input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-g)}
.auth-field input::placeholder{color:var(--t3)}
.auth-err{min-height:18px;font-size:11px;color:var(--red);margin:0}
.auth-submit{
  margin-top:4px;
  padding:12px 20px;
  border:none;
  border-radius:var(--r-sm);
  background:var(--grad);
  color:#fff;
  font-size:13px;
  font-weight:700;
  font-family:var(--font-display);
  cursor:pointer;
  transition:all .2s;
  box-shadow:0 4px 18px var(--accent-g);
}
.auth-submit:hover:not(:disabled){filter:brightness(1.06);transform:translateY(-1px)}
.auth-submit:disabled{opacity:.6;cursor:not-allowed}
.auth-foot{margin-top:18px;text-align:center;font-size:10px;color:var(--t3);line-height:1.5}
.auth-verify{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:8px 4px 0}
.auth-verify-icon{width:52px;height:52px;border-radius:50%;background:var(--accent-g);display:flex;align-items:center;justify-content:center;color:var(--accent-l);margin-bottom:6px}
.auth-verify-icon svg{width:26px;height:26px}
.auth-verify-title{font-family:var(--font-display);font-size:18px;font-weight:700;color:var(--t1);margin:0}
.auth-verify-text{font-size:13px;color:var(--t2);line-height:1.55;margin:0 0 6px;max-width:320px}
.auth-verify-text strong{color:var(--t1)}
.auth-verify .auth-submit{width:100%}
.auth-linkbtn{margin-top:4px;background:none;border:none;color:var(--accent-l);font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;padding:6px}
.auth-linkbtn:hover{text-decoration:underline}
.auth-forgot-row{display:flex;justify-content:flex-end;margin-top:-2px}
.auth-forgot-link{background:none;border:none;color:var(--t2);font-size:11px;font-weight:600;cursor:pointer;font-family:inherit;padding:2px 0}
.auth-forgot-link:hover{color:var(--accent-l);text-decoration:underline}
.auth-forgot-head{text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px;margin-bottom:2px}
.auth-forgot-head .auth-verify-text{margin-bottom:2px}

/* Maintenance */
.maintenance-banner{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;margin-bottom:16px;
  border-radius:var(--r-md);
  background:rgba(245,158,11,.08);
  border:1px solid rgba(245,158,11,.28);
}
.maintenance-icon{font-size:20px;line-height:1;flex-shrink:0;margin-top:2px}
.maintenance-copy strong{display:block;font-size:13px;font-weight:700;color:var(--orange);margin-bottom:4px}
.maintenance-copy p{margin:0;font-size:12px;color:var(--t2);line-height:1.5}
.maintenance-disabled{opacity:.45;pointer-events:none;user-select:none}
.mode-tab.maintenance-tab::after{
  content:'Maintenance';
  margin-left:6px;
  font-size:9px;font-weight:700;
  text-transform:uppercase;
  letter-spacing:.04em;
  padding:2px 6px;
  border-radius:100px;
  background:rgba(245,158,11,.15);
  color:var(--orange);
  vertical-align:middle;
}

/* Toast */
.toasts{position:fixed;top:70px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 18px;border-radius:var(--r-sm);background:var(--card);border:1px solid var(--border);color:var(--t1);font-size:12px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;animation:slideR .35s ease;max-width:380px;cursor:pointer}
.toast.err{border-color:rgba(248,113,113,.35)}.toast.ok{border-color:rgba(52,211,153,.35)}
@keyframes slideR{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:translateX(0)}}

/* Chat workspace */
.chat-workspace{display:none;grid-template-columns:280px 1fr;width:100%;min-height:calc(100vh - 120px);background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.chat-workspace.active{display:grid}
.chat-sidebar{display:flex;flex-direction:column;gap:14px;padding:20px 16px;background:var(--bg2);border-right:1px solid var(--border);overflow-y:auto}
.chat-sidebar > *{flex-shrink:0}
.chat-brand{display:flex;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--border)}
.chat-sidebar-close{display:none;width:36px;height:36px;min-width:36px;border-radius:10px;border:1px solid var(--border);background:var(--elev);color:var(--t3);cursor:pointer;align-items:center;justify-content:center;margin-left:auto;flex-shrink:0;transition:all .2s}
.chat-sidebar-close svg{width:16px;height:16px}
.chat-sidebar-close:hover{border-color:var(--border-h);color:var(--t1)}
.chat-brand-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#d97706 0%,#f59e0b 50%,#fbbf24 100%);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0;box-shadow:0 4px 16px rgba(245,158,11,.25)}
.chat-brand-icon svg{width:22px;height:22px}
.chat-brand-title{font-family:var(--font-display);font-size:16px;font-weight:700;color:var(--t1);letter-spacing:-.3px}
.chat-brand-sub{font-size:11px;color:var(--t3);margin-top:2px}
.chat-side-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:10px 14px;border-radius:var(--r-sm);border:1px solid var(--border);background:var(--elev);color:var(--t2);font-size:12px;font-weight:600;font-family:var(--font-display);cursor:pointer;transition:all .2s}
.chat-side-btn svg{width:16px;height:16px;flex-shrink:0}
.chat-side-btn:hover{border-color:var(--border-h);color:var(--t1);background:var(--card)}
.chat-side-btn.primary{background:var(--accent);border-color:transparent;color:#fff;box-shadow:0 4px 14px var(--accent-g)}
.chat-side-btn.primary:hover{background:var(--accent-l);color:#fff}
.chat-side-block{display:flex;flex-direction:column;gap:8px}
.chat-side-lbl{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--t3)}
.chat-model-sel{width:100%;padding:10px 12px;border-radius:var(--r-sm);background:var(--bg);border:1px solid var(--border);color:var(--t1);font-size:12px;font-family:inherit;outline:none;cursor:pointer}
.chat-model-sel:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-g)}
.chat-side-tog{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 12px;border-radius:var(--r-sm);border:1px solid var(--border);background:var(--elev);color:var(--t2);font-size:12px;font-weight:600;font-family:var(--font-display);cursor:pointer;transition:all .2s}
.chat-side-tog:hover{border-color:var(--border-h);color:var(--t1)}
.chat-side-arr{font-size:10px;transition:transform .2s}
.chat-side-arr.open{transform:rotate(180deg)}
.chat-side-panel{display:none;margin-top:4px}
.chat-side-panel.open{display:block}
.chat-side-ta{width:100%;min-height:88px;padding:10px 12px;border-radius:var(--r-sm);background:var(--bg);border:1px solid var(--border);color:var(--t1);font-size:12px;font-family:inherit;line-height:1.5;resize:vertical;outline:none}
.chat-side-ta:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-g)}
.chat-side-ta::placeholder{color:var(--t3)}
.chat-opt{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--t2);cursor:pointer;padding:4px 0}
.chat-sessions-block{flex-shrink:0}
.chat-session-list{display:flex;flex-direction:column;gap:4px;overflow-y:auto;min-height:60px;max-height:240px;padding-right:2px}
.chat-session-empty{font-size:11px;color:var(--t3);padding:10px 8px;text-align:center}
.chat-session-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;border-radius:var(--r-sm);border:1px solid transparent;background:transparent;color:var(--t2);font-size:12px;font-family:inherit;cursor:pointer;text-align:left;transition:all .15s}
.chat-session-item:hover{background:var(--elev);border-color:var(--border);color:var(--t1)}
.chat-session-item.on{background:var(--elev);border-color:var(--border-h);color:var(--t1)}
.chat-session-item .chat-session-title{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4}
.chat-session-item .chat-session-time{font-size:10px;color:var(--t3);flex-shrink:0}
.chat-session-del{width:22px;height:22px;border-radius:6px;border:none;background:transparent;color:var(--t3);cursor:pointer;display:none;align-items:center;justify-content:center;flex-shrink:0;padding:0}
.chat-session-del svg{width:13px;height:13px}
.chat-session-del:hover{color:var(--red);background:rgba(248,113,113,.12)}
.chat-session-item:hover .chat-session-del,.chat-session-item.on .chat-session-del{display:flex}
.chat-side-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--border)}
.chat-side-status{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--green);font-weight:600}
.chat-main{display:flex;flex-direction:column;min-width:0;background:var(--bg)}
.chat-topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);background:rgba(10,12,20,.6);backdrop-filter:blur(12px);flex-shrink:0}
.chat-sidebar-toggle{display:none}
.chat-sidebar-backdrop{display:none}
.chat-topbar-left{display:flex;align-items:center;gap:12px;min-width:0;flex:1}
.chat-topbar-title{font-family:var(--font-display);font-size:15px;font-weight:700;color:var(--t1);letter-spacing:-.2px}
.chat-model-pill{font-size:11px;font-weight:600;padding:4px 10px;border-radius:100px;background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.25);color:#fbbf24;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}
.chat-topbar-actions{display:flex;gap:6px}
.chat-icon-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:var(--elev);color:var(--t3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}
.chat-icon-btn svg{width:16px;height:16px}
.chat-icon-btn:hover{border-color:var(--border-h);color:var(--t1);background:var(--card)}
.chat-thread{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:0;scroll-behavior:smooth}
.chat-thread-inner{max-width:820px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:0}
.chat-welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 24px 32px;max-width:640px;margin:0 auto}
.chat-welcome-icon{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,#d97706 0%,#f59e0b 50%,#fbbf24 100%);display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:20px;box-shadow:0 8px 32px rgba(245,158,11,.2)}
.chat-welcome-icon svg{width:32px;height:32px}
.chat-welcome h3{font-family:var(--font-display);font-size:24px;font-weight:700;color:var(--t1);margin-bottom:8px;letter-spacing:-.5px}
.chat-welcome p{font-size:14px;color:var(--t3);line-height:1.6;margin-bottom:28px;max-width:420px}
.chat-suggestions{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;max-width:520px}
.chat-suggestion{padding:14px 16px;border-radius:var(--r-md);background:var(--elev);border:1px solid var(--border);color:var(--t2);font-size:13px;text-align:left;cursor:pointer;transition:all .2s;line-height:1.4}
.chat-suggestion:hover{border-color:rgba(245,158,11,.35);color:var(--t1);background:var(--card);transform:translateY(-1px)}
.chat-row{display:flex;gap:12px;padding:16px 0;max-width:82%;width:fit-content}
.chat-row.user{align-self:flex-end;flex-direction:row-reverse}
.chat-row.assistant,.chat-row.error{align-self:flex-start;flex-direction:row}
.chat-avatar{width:36px;height:36px;border-radius:10px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:13px;font-weight:700}
.chat-row.user .chat-avatar{background:linear-gradient(135deg,#3b82f6,#6366f1);color:#fff;box-shadow:0 2px 8px rgba(59,130,246,.2)}
.chat-row.assistant .chat-avatar{background:linear-gradient(135deg,#d97706,#f59e0b);color:#fff;box-shadow:0 2px 8px rgba(245,158,11,.2)}
.chat-row.error .chat-avatar{background:rgba(248,113,113,.15);color:var(--red);border:1px solid rgba(248,113,113,.3)}
.chat-bubble{flex:0 1 auto;min-width:0;max-width:100%;padding:12px 16px;border-radius:var(--r-md);background:var(--elev);position:relative}
.chat-bubble.has-copy{padding:12px 40px 12px 16px}
.chat-row.user .chat-bubble{border:1px solid rgba(96,165,250,.45)}
.chat-row.assistant .chat-bubble{border:1px solid rgba(251,191,36,.45)}
.chat-copy-btn{
  position:absolute;
  top:8px;
  right:8px;
  width:26px;
  height:26px;
  padding:0;
  border:none;
  border-radius:6px;
  background:transparent;
  color:var(--t3);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:.55;
  transition:opacity .2s,background .2s,color .2s;
  z-index:1;
}
.chat-copy-btn svg{width:14px;height:14px}
.chat-bubble:hover .chat-copy-btn,.chat-copy-btn:focus{opacity:1;outline:none}
.chat-copy-btn:hover{background:rgba(255,255,255,.06);color:var(--t1)}
.chat-copy-btn.copied{color:var(--green);opacity:1}
.chat-row.error .chat-bubble{border:1px solid rgba(248,113,113,.4)}
.chat-meta{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.chat-row.user .chat-meta{justify-content:flex-end}
.chat-row.assistant .chat-meta,.chat-row.error .chat-meta{justify-content:flex-start}
.chat-row.user .chat-name{color:rgba(147,197,253,.9)}
.chat-row.assistant .chat-name{color:rgba(253,230,138,.9)}
.chat-name{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--t3)}
.chat-body{font-size:15px;line-height:1.7;color:var(--t1);word-wrap:break-word}
.chat-row.user .chat-body{color:var(--t1)}
.chat-body p{margin:0 0 10px}
.chat-body p:last-child{margin-bottom:0}
.chat-body h2,.chat-body h3{font-family:var(--font-display);font-weight:700;margin:14px 0 8px;color:var(--t1)}
.chat-body h2{font-size:17px}.chat-body h3{font-size:15px}
.chat-body strong{font-weight:700;color:var(--t1)}
.chat-body code{padding:2px 6px;border-radius:5px;background:var(--bg2);border:1px solid var(--border);font-size:13px;color:var(--accent-l)}
.chat-body pre{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-sm);padding:12px 14px;overflow-x:auto;margin:10px 0;font-size:13px;line-height:1.5}
.chat-body pre code{padding:0;border:none;background:transparent;color:var(--t1);font-size:inherit}
/* Code block with header + copy button */
.chat-code{margin:10px 0;border:1px solid var(--border);border-radius:var(--r-sm);overflow:hidden;background:var(--bg2)}
.chat-code-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 8px 6px 14px;background:rgba(255,255,255,.04);border-bottom:1px solid var(--border)}
.chat-code-lang{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.2px;color:var(--t3)}
.chat-code-copy{display:flex;align-items:center;gap:6px;padding:4px 10px;border-radius:7px;border:1px solid var(--border);background:transparent;color:var(--t3);font-size:11px;font-weight:600;font-family:var(--font-display);cursor:pointer;transition:all .15s}
.chat-code-copy svg{width:12px;height:12px}
.chat-code-copy:hover{color:var(--t1);border-color:var(--border-h);background:var(--card)}
.chat-code-copy.copied{color:var(--green);border-color:rgba(52,211,153,.4)}
.chat-code pre{margin:0;border:none;border-radius:0;background:transparent}
.chat-body ul,.chat-body ol{margin:8px 0;padding-left:20px}
.chat-body li{margin:4px 0}
.chat-row.error .chat-body{color:var(--red)}
.chat-typing{display:inline-flex;align-items:center;gap:5px;padding:4px 0}
.chat-typing span{width:7px;height:7px;border-radius:50%;background:var(--t3);animation:chatDot 1.2s ease-in-out infinite}
.chat-typing span:nth-child(2){animation-delay:.15s}
.chat-typing span:nth-child(3){animation-delay:.3s}
@keyframes chatDot{0%,80%,100%{opacity:.3;transform:scale(.85)}40%{opacity:1;transform:scale(1)}}
.chat-composer-wrap{padding:16px 24px 20px;border-top:1px solid var(--border);background:rgba(10,12,20,.5);flex-shrink:0}
.chat-composer{display:flex;align-items:flex-end;gap:8px;max-width:820px;margin:0 auto;padding:6px 6px 6px 8px;background:var(--elev);border:1px solid var(--border);border-radius:var(--r-lg);transition:border-color .2s,box-shadow .2s}
.chat-attach-btn{width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:transparent;color:var(--t3);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s}
.chat-attach-btn svg{width:18px;height:18px}
.chat-attach-btn:hover{color:var(--accent-l);border-color:var(--border-h);background:var(--card)}
.chat-attach-list{display:flex;flex-wrap:wrap;gap:8px;max-width:820px;margin:0 auto 8px;padding:0 4px}
.chat-attach-chip{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:10px;background:var(--elev);border:1px solid var(--border);font-size:11px;color:var(--t2);max-width:220px}
.chat-attach-chip img{width:28px;height:28px;border-radius:6px;object-fit:cover;flex-shrink:0}
.chat-attach-chip .chat-attach-icon{width:28px;height:28px;border-radius:6px;background:var(--card);display:flex;align-items:center;justify-content:center;color:var(--accent-l);flex-shrink:0}
.chat-attach-chip .chat-attach-icon svg{width:14px;height:14px}
.chat-attach-chip .chat-attach-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.chat-attach-rm{width:18px;height:18px;border-radius:50%;border:none;background:var(--card);color:var(--t3);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:11px;line-height:1;padding:0}
.chat-attach-rm:hover{color:var(--red);background:rgba(248,113,113,.12)}
/* Attachments shown inside sent messages */
.chat-msg-attachments{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.chat-msg-attachments img{max-width:180px;max-height:140px;border-radius:10px;border:1px solid var(--border);display:block}
.chat-msg-file{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:8px;background:rgba(255,255,255,.06);border:1px solid var(--border);font-size:11px;color:var(--t2)}
.chat-msg-file svg{width:12px;height:12px;color:var(--accent-l)}
.chat-composer:focus-within{border-color:rgba(245,158,11,.4);box-shadow:0 0 0 3px rgba(245,158,11,.08)}
.chat-composer-input{flex:1;min-height:24px;max-height:160px;padding:12px 0;border:none;background:transparent;color:var(--t1);font-size:15px;font-family:inherit;line-height:1.5;resize:none;outline:none}
.chat-composer-input::placeholder{color:var(--t3)}
.chat-send-btn{width:42px;height:42px;border-radius:12px;border:none;background:linear-gradient(135deg,#d97706,#f59e0b);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s;box-shadow:0 4px 14px rgba(245,158,11,.25)}
.chat-send-btn svg{width:18px;height:18px}
.chat-send-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px rgba(245,158,11,.35)}
.chat-send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.chat-send-btn .spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.chat-composer-hint{text-align:center;font-size:11px;color:var(--t3);margin-top:10px;max-width:820px;margin-left:auto;margin-right:auto}

/* Sections show/hide */
.mode-section{display:none}.mode-section.active{display:contents}

/* Checkbox (T2V) */
input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}

::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--border-h)}

/* ─── Tablet & small laptop ─── */
@media(max-width:1024px){
  :root{--header-h:72px}
  /* Collapse the 5 tabs into the mode dropdown early so the header
     never overflows on tablet widths (769–1024px). */
  .mode-tabs{display:none}
  .mode-select{display:block;flex:1 1 auto;min-width:0;max-width:360px;margin:0 6px}
  main{padding:20px;max-width:100%;width:100%}
  main:has(.chat-workspace.active){padding:12px 16px 16px}
  .studio-layout{grid-template-columns:1fr;gap:0}
  .panel-l{padding-right:0;border-right:none;border-bottom:1px solid var(--border);padding-bottom:22px;width:100%;min-width:0}
  .panel-r{padding-left:0;padding-top:22px;width:100%;min-width:0}
  header{padding:12px 20px;padding-top:calc(12px + var(--safe-top))}
  .fs-uploads{grid-template-columns:1fr}
  .canvas{min-height:280px}
  .chat-workspace.active{
    grid-template-columns:1fr;
    min-height:calc(100dvh - var(--header-h) - 24px);
  }
  .chat-suggestions{grid-template-columns:1fr}
  .out-head{flex-wrap:wrap;gap:10px}
}

/* ─── Mobile ─── */
@media(max-width:768px){
  :root{--header-h:118px}
  html,body{overflow-x:hidden;max-width:100vw}
  .app{min-width:0;overflow-x:hidden}
  main{
    padding:14px 12px;
    padding-bottom:calc(14px + var(--safe-bottom));
    max-width:100%;
    width:100%;
    min-width:0;
  }
  main:has(.chat-workspace.active){
    padding:8px 8px calc(8px + var(--safe-bottom));
    max-width:100%;
  }
  .panel-l,.panel-r{min-width:0;width:100%;gap:18px}
  .mode-section.active{
    display:flex;
    flex-direction:column;
    gap:18px;
    width:100%;
    min-width:0;
  }

  /* Header: logo + auth on row 1, mode select full width on row 2 */
  header{
    display:grid;
    grid-template-columns:1fr auto;
    grid-template-areas:
      "logo auth"
      "mode mode";
    align-items:center;
    padding:10px 12px;
    padding-top:calc(10px + var(--safe-top));
    gap:10px;
  }
  .hdr-l{grid-area:logo;min-width:0}
  .hdr-r{grid-area:auth;gap:6px;min-width:0}
  .mode-tabs{display:none}
  .mode-select{
    grid-area:mode;
    display:block;
    width:100%;
    max-width:none;
    min-height:44px;
    font-size:16px;
    padding:10px 36px 10px 14px;
    margin:0;
  }
  .api-pill{display:none}
  .auth-btn{
    min-height:44px;
    padding:8px 12px;
    font-size:12px;
  }
  .auth-user-pill{padding:4px 10px 4px 4px}
  .auth-user-name{max-width:72px;font-size:11px}
  .auth-avatar{width:32px;height:32px;font-size:12px}
  .logo-name{font-size:17px}
  .logo-mark{width:34px;height:34px;font-size:15px}

  /* Studio panels */
  .upload-box{min-height:140px}
  .upload-box,.prompt-wrap,.gen-btn,.set-grid,.set-panel{width:100%;min-width:0}
  .prompt-ta{min-height:88px;font-size:16px}
  .gen-btn{min-height:48px;padding:14px 20px;font-size:15px}
  .set-inp,.set-sel{font-size:16px;min-height:44px}
  .prev-btn,.up-url-btn,.out-tab{min-height:44px;display:inline-flex;align-items:center}
  .hints{gap:8px;flex-wrap:wrap}
  .hint{min-height:44px;display:inline-flex;align-items:center;padding:8px 14px}
  .out-tab{padding:8px 14px;font-size:12px}
  .empty{padding:24px 16px}
  .canvas{min-height:220px;border-radius:var(--r-md)}
  .result-acts{
    position:static;
    margin-top:10px;
    justify-content:center;
    flex-wrap:wrap;
    padding:0 8px 8px;
  }
  .res-btn{min-height:40px;padding:10px 16px;font-size:12px}
  .hist-list{max-height:120px}
  .maintenance-banner{padding:12px 14px;margin-bottom:12px}
  .maintenance-copy strong{font-size:12px}
  .maintenance-copy p{font-size:11px}
  .mode-tab.maintenance-tab::after{display:none}

  /* Modals & toasts */
  .modal-bg{padding:12px;align-items:flex-end}
  .modal-box{
    width:100%;
    max-width:100%;
    margin:0 0 var(--safe-bottom);
    padding:20px 18px;
    border-bottom-left-radius:0;
    border-bottom-right-radius:0;
  }
  .modal-row{flex-direction:column}
  .modal-row input{font-size:16px;min-height:44px;width:100%}
  .modal-row .gen-btn{width:100%!important;min-height:44px}
  .auth-modal{width:100%;max-width:100%;padding:24px 20px 20px;margin:0}
  .auth-field input{font-size:16px;min-height:44px}
  .auth-submit{min-height:48px}
  .toasts{
    top:auto;
    bottom:calc(12px + var(--safe-bottom));
    left:12px;
    right:12px;
    align-items:stretch;
  }
  .toast{max-width:none;width:100%}

  /* Chat — drawer sidebar */
  .chat-workspace{
    border-radius:var(--r-md);
    min-height:calc(100dvh - var(--header-h) - 16px);
    position:relative;
    overflow:hidden;
  }
  .chat-workspace.active{
    display:flex;
    flex-direction:column;
    grid-template-columns:unset;
    min-height:calc(100dvh - var(--header-h) - 16px);
  }
  .chat-sidebar-toggle{display:flex}
  .chat-sidebar-backdrop{
    display:block;
    position:fixed;
    inset:0;
    z-index:1000;
    background:rgba(0,0,0,.55);
    backdrop-filter:blur(4px);
    -webkit-backdrop-filter:blur(4px);
  }
  .chat-sidebar-backdrop[hidden]{display:none!important}
  .chat-sidebar{
    position:fixed;
    top:0;
    left:0;
    bottom:0;
    height:100dvh;
    width:min(300px,calc(100vw - 48px));
    max-width:88vw;
    z-index:1010;
    transform:translateX(-105%);
    transition:transform .28s cubic-bezier(.2,0,.1,1);
    flex-direction:column;
    flex-wrap:nowrap;
    align-items:stretch;
    background:var(--bg2);
    border-right:1px solid var(--border);
    border-bottom:none;
    padding:calc(16px + var(--safe-top)) 14px calc(16px + var(--safe-bottom));
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
    box-shadow:var(--shadow-lg);
  }
  .chat-sidebar-close{display:flex}
  .chat-session-list{max-height:none;flex:1;min-height:80px}
  .chat-sessions-block{flex:1;min-height:0;display:flex;flex-direction:column}
  .chat-workspace.chat-sidebar-open .chat-sidebar{transform:translateX(0)}
  .chat-main{flex:1;min-height:0;display:flex;flex-direction:column}
  .chat-topbar{
    padding:10px 12px;
    gap:8px;
    flex-shrink:0;
  }
  .chat-topbar-title{font-size:14px}
  .chat-model-pill{
    max-width:min(140px,36vw);
    font-size:10px;
    padding:4px 8px;
  }
  .chat-icon-btn{width:40px;height:40px;min-width:40px;min-height:40px}
  .chat-thread{
    flex:1;
    min-height:0;
    padding:12px 10px;
    -webkit-overflow-scrolling:touch;
  }
  .chat-composer-wrap{
    padding:10px 10px calc(10px + var(--safe-bottom));
    flex-shrink:0;
  }
  .chat-composer-input{font-size:16px}
  .chat-send-btn{width:44px;height:44px;min-width:44px;min-height:44px}
  .chat-composer-hint{font-size:10px;line-height:1.45;padding:0 4px}
  .chat-welcome{padding:24px 12px 20px}
  .chat-welcome h3{font-size:18px}
  .chat-welcome p{font-size:13px;margin-bottom:20px}
  .chat-welcome-icon{width:52px;height:52px;border-radius:14px}
  .chat-welcome-icon svg{width:26px;height:26px}
  .chat-suggestion{padding:12px 14px;font-size:12px;min-height:44px}
  .chat-row{
    max-width:92%;
    gap:8px;
    padding:10px 0;
  }
  .chat-row.user{align-self:flex-end}
  .chat-avatar{width:28px;height:28px;font-size:10px;border-radius:8px}
  .chat-bubble{padding:10px 14px}
  .chat-bubble.has-copy{padding:10px 36px 10px 14px}
  .chat-body{font-size:14px;line-height:1.65}
  .chat-side-btn,.chat-model-sel,.chat-side-tog{min-height:44px}
  .comp-handle{width:40px;height:40px}
}

/* ─── Small phones ─── */
@media(max-width:640px){
  :root{--header-h:116px}
  .set-grid{grid-template-columns:1fr}
  /* Keep the edit chips visible — wrap to multiple lines instead of hiding */
  .hints{display:flex;flex-wrap:wrap;gap:8px}
  main{padding:12px 10px}
  .empty{padding:20px 12px}
  .empty-t{font-size:15px}
  .empty-s{font-size:11px;max-width:100%}
  .sec-label{font-size:9px;letter-spacing:2px}
  .swap-arrow svg{width:22px;height:22px}
  .auth-user-name{display:none}
  .auth-user-pill{padding-right:8px}
  .hdr-r .auth-btn.ghost:last-child{padding:8px 10px}
}

/* ─── Very small phones (iPhone SE, etc.) ─── */
@media(max-width:390px){
  :root{--header-h:112px}
  header{padding:8px 10px;padding-top:calc(8px + var(--safe-top));gap:8px}
  main{padding:10px 8px}
  .logo-name{font-size:15px}
  .logo-mark{width:30px;height:30px;font-size:13px;border-radius:9px}
  .auth-btn{padding:7px 9px;font-size:11px;min-height:44px}
  .gen-btn{font-size:14px;padding:13px 16px}
  .chat-topbar-title{display:none}
  .chat-model-pill{max-width:120px}
  .chat-composer-hint span#chatCc{display:none}
  .chat-composer-hint::before{content:'Enter to send'}
  .maintenance-icon{font-size:18px}
}

/* ─── Landscape phones ─── */
@media(max-width:896px) and (max-height:500px) and (orientation:landscape){
  :root{--header-h:56px}
  header{
    grid-template-columns:auto 1fr auto;
    grid-template-areas:"logo mode auth";
    padding:6px 12px;
    padding-top:calc(6px + var(--safe-top));
  }
  .mode-select{min-height:40px;padding:8px 32px 8px 12px;font-size:14px}
  main{padding:8px 12px}
  .chat-workspace.active,.chat-workspace{min-height:calc(100dvh - var(--header-h) - 8px)}
  .canvas{min-height:160px}
  .chat-welcome{padding:16px 12px}
  .chat-welcome-icon{width:44px;height:44px;margin-bottom:12px}
  .chat-thread{padding:8px}
}

/* =========================================================
   SKYLABS Premium UI Patch
   - Better background "bunches" (orbs + aurora mesh + glow)
   - More premium surfaces, borders, focus rings
   ========================================================= */
/* Slightly refined global bg tones (keep your brand) */
:root{
  --bg:#04050b;
  --bg2:#070915;

  /* More "premium" border and highlight behavior */
  --border:rgba(255,255,255,.08);
  --border-h:rgba(255,255,255,.14);

  /* New helpers */
  --surface:rgba(16,18,30,.62);
  --surface2:rgba(10,12,20,.72);
  --surface-solid:#0b0d17;
  --ring:0 0 0 3px rgba(99,102,241,.18);
  --ring2:0 0 0 3px rgba(34,211,211,.14);

  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 24px 70px rgba(0,0,0,.55);
}

/* ---------- Background: upgrade existing .amb/.orb/.grain ---------- */

/* Animated aurora / gradient mesh (replaces the static grid).
   Oversized + blurred so the slow drift never reveals edges, kept
   low-contrast so it sits well behind the UI. */
body::before{
  content:"";
  position:fixed;
  inset:-35%;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(38% 40% at 22% 26%, rgba(109,107,255,.18), transparent 62%),
    radial-gradient(34% 38% at 82% 20%, rgba(34,211,238,.13), transparent 60%),
    radial-gradient(46% 44% at 70% 80%, rgba(139,92,246,.15), transparent 64%),
    radial-gradient(40% 36% at 28% 82%, rgba(34,211,238,.09), transparent 60%),
    radial-gradient(30% 30% at 50% 50%, rgba(167,139,250,.08), transparent 65%);
  filter:blur(48px) saturate(135%);
  opacity:.7;
  animation:auroraMesh 40s ease-in-out infinite alternate;
  will-change:transform;
}

/* Keep .amb, but make it richer and more "designed" */
.amb{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  overflow:hidden;
}

/* Orbs: slightly stronger, more layered color */
.orb{
  position:absolute;
  border-radius:999px;
  filter:blur(120px);
  opacity:.075;
  mix-blend-mode:screen; /* gives a premium neon-glow vibe on dark */
  animation:orbF 30s ease-in-out infinite;
  transform:translate3d(0,0,0);
}

.orb:nth-child(1){
  width:760px;height:760px;
  top:-20%;left:-15%;
  background:radial-gradient(circle at 30% 30%, rgba(99,102,241,.95), rgba(99,102,241,0) 65%);
  animation-duration:34s;
}
.orb:nth-child(2){
  width:620px;height:620px;
  bottom:-25%;right:-15%;
  background:radial-gradient(circle at 30% 30%, rgba(34,211,211,.9), rgba(34,211,211,0) 65%);
  animation-delay:-10s;
  animation-duration:32s;
}
.orb:nth-child(3){
  width:520px;height:520px;
  top:35%;left:45%;
  background:radial-gradient(circle at 35% 35%, rgba(167,139,250,.9), rgba(167,139,250,0) 65%);
  animation-delay:-18s;
  animation-duration:36s;
}

/* Grain: tone it down a bit so it feels premium, not noisy */
.grain{
  opacity:.22;
  z-index:1;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce){
  .orb{animation:none}
  .api-dot{animation:none}
  .gen-btn .shimmer{display:none}
}

/* ---------- App surfaces: more glass + depth ---------- */

header{
  background:rgba(4,5,11,.62);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 1px 0 rgba(255,255,255,.04);
}

/* Make main container feel more "designed" */
main{
  position:relative;
  z-index:2;
}

/* Panels: subtle glass treatment */
.panel-l,
.panel-r{
  position:relative;
}

.panel-l{
  border-right:1px solid rgba(255,255,255,.08);
}

.canvas,
.prompt-wrap,
.upload-box,
.hist-item,
.modal-box,
.auth-modal,
.chat-workspace{
  background:var(--surface2);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow);
}

/* Upload box: more premium dashed + hover glow */
.upload-box{
  border:1px dashed rgba(255,255,255,.16);
  background:
    radial-gradient(800px 200px at 50% 0%, rgba(99,102,241,.08), transparent 60%),
    var(--surface2);
}

.upload-box:hover,
.upload-box.drag{
  border-color:rgba(129,140,248,.55);
  box-shadow:0 0 0 1px rgba(99,102,241,.14), 0 18px 60px rgba(0,0,0,.45);
}

/* Inputs focus ring consistency */
.set-inp:focus,
.set-sel:focus,
.modal-row input:focus,
.auth-field input:focus,
.chat-model-sel:focus,
.chat-side-ta:focus{
  border-color:rgba(129,140,248,.7);
  box-shadow:var(--ring);
}

/* Prompt focus: a bit more premium */
.prompt-wrap:focus-within{
  border-color:rgba(129,140,248,.7);
  box-shadow:var(--ring);
}
 
/* Tabs: slightly clearer selected state */
.mode-tabs,
.out-tabs,
.auth-tabs{
  background:rgba(10,12,20,.55);
  border:1px solid rgba(255,255,255,.08);
}

.mode-tab.on,
.out-tab.on,
.auth-tab.on{
  background:rgba(20,23,42,.72);
  border:1px solid rgba(255,255,255,.08);
}

/* Buttons: a little more "clicky" */
.gen-btn:hover:not(:disabled){
  transform:translateY(-2px);
  box-shadow:0 10px 40px rgba(99,102,241,.22), inset 0 1px 0 rgba(255,255,255,.14);
}

/* Result buttons: unify with glass */
.res-btn{
  background:rgba(10,12,20,.55);
  border:1px solid rgba(255,255,255,.14);
}
.res-btn:hover{
  background:rgba(255,255,255,.10);
  border-color:rgba(255,255,255,.22);
}

/* Modal backgrounds: slightly softer */
.modal-bg,
.auth-modal-bg{
  background:rgba(0,0,0,.55);
}

/* Chat workspace: match premium surfaces */
.chat-sidebar{
  background:rgba(10,12,20,.6);
}
.chat-topbar,
.chat-composer-wrap{
  background:rgba(10,12,20,.45);
}
.chat-composer{
  background:rgba(20,23,42,.62);
}

/* Scrollbar a bit subtler */
::-webkit-scrollbar-thumb{
  background:rgba(255,255,255,.10);
}
::-webkit-scrollbar-thumb:hover{
  background:rgba(255,255,255,.16);
}

/* =========================================================
   AI Chat page — cosmic background
   ========================================================= */
.chat-main{
  position:relative;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(99,102,241,.17), transparent 60%),
    radial-gradient(820px 520px at 102% 112%, rgba(34,211,211,.13), transparent 58%),
    radial-gradient(640px 420px at 82% 18%, rgba(167,139,250,.09), transparent 65%),
    radial-gradient(500px 380px at 30% 85%, rgba(244,114,182,.05), transparent 65%),
    #05060d;
}

/* Starfield layer */
.chat-main::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 22px 34px, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1px 1px at 78px 92px, rgba(255,255,255,.30), transparent 100%),
    radial-gradient(1.5px 1.5px at 142px 42px, rgba(186,200,255,.45), transparent 100%),
    radial-gradient(1px 1px at 112px 134px, rgba(255,255,255,.22), transparent 100%),
    radial-gradient(2px 2px at 184px 166px, rgba(150,230,230,.35), transparent 100%),
    radial-gradient(1px 1px at 48px 178px, rgba(255,255,255,.28), transparent 100%),
    radial-gradient(1.5px 1.5px at 165px 110px, rgba(199,170,255,.32), transparent 100%);
  background-size:220px 220px;
  background-repeat:repeat;
  animation:chatStars 9s ease-in-out infinite alternate;
}

/* Soft aurora sweep */
.chat-main::after{
  content:"";
  position:absolute;
  inset:-20% -10%;
  z-index:0;
  pointer-events:none;
  background:
    linear-gradient(115deg, transparent 30%, rgba(99,102,241,.07) 45%, rgba(34,211,211,.06) 55%, transparent 70%);
  filter:blur(30px);
  animation:chatAurora 18s ease-in-out infinite alternate;
}

@keyframes chatStars{
  from{opacity:.55}
  to{opacity:1}
}
@keyframes chatAurora{
  from{transform:translateX(-6%) rotate(0deg)}
  to{transform:translateX(6%) rotate(2deg)}
}

/* Keep chat content above the background layers */
.chat-main > *{
  position:relative;
  z-index:1;
}

@media (prefers-reduced-motion: reduce){
  .chat-main::before,
  .chat-main::after{animation:none}
}

/* =========================================================
   Chat layout: static sidebar, scrolling thread (desktop)
   ========================================================= */
@media(min-width:1025px){
  .chat-workspace.active{
    height:calc(100dvh - var(--header-h) - 44px);
    min-height:480px;
  }
  /* Sidebar keeps its own scroll; never moves with the page */
  .chat-sidebar{min-height:0;overflow-y:auto}
  /* Let the thread shrink and scroll inside the fixed workspace */
  .chat-main{min-height:0}
  .chat-thread{min-height:0}
}

/* =========================================================
   UNIFIED THEME SYSTEM  (single source of truth)
   - One accent system everywhere: deep near-black bg,
     electric violet -> cyan primary gradient, warm amber
     kept ONLY as a secondary highlight.
   - Glassmorphism on cards / panels / modals / nav.
   - Tighter type (Space Grotesk + Inter), spacing, radii, glows.
   ========================================================= */
:root{
  /* ---- Fonts ---- */
  --font-display:'Space Grotesk','Inter',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;

  /* ---- Surface / background (deep near-black) ---- */
  --bg:#04050b;
  --bg2:#070915;

  /* ---- Primary accent: electric violet -> cyan ---- */
  --accent:#6d6bff;
  --accent-l:#9aa0ff;
  --accent-g:rgba(109,107,255,.22);
  --accent2:#22d3ee;            /* cyan tail of the gradient */
  --teal:#22d3ee;
  --grad:linear-gradient(135deg,#6d6bff 0%,#8b5cf6 48%,#22d3ee 100%);

  /* ---- Secondary highlight: warm amber (sparingly) ---- */
  --amber:#f5b042;
  --amber-l:#fbbf24;
  --amber-g:rgba(245,176,66,.14);
  --orange:#f5b042;
  --grad2:linear-gradient(135deg,#f472b6 0%,#f5b042 100%);

  /* ---- Glass tokens ---- */
  --glass-fill:rgba(18,20,34,.55);
  --glass-fill-2:rgba(11,13,23,.66);
  --glass-stroke:rgba(255,255,255,.09);
  --glass-grad-border:linear-gradient(135deg,rgba(154,160,255,.5),rgba(34,211,238,.28) 55%,rgba(255,255,255,.05));
  --glass-hi:inset 0 1px 0 rgba(255,255,255,.10);
  --glass-blur:18px;

  /* ---- Glow tokens (interactive elements) ---- */
  --glow:0 8px 28px rgba(109,107,255,.18);
  --glow-strong:0 14px 46px rgba(109,107,255,.32);

  /* ---- Radii (consistent rounding) ---- */
  --r-sm:11px;
  --r-md:15px;
  --r-lg:20px;
}

/* ---------- Typography hierarchy ---------- */
body{font-family:var(--font-body);letter-spacing:-.01em}
.logo-name,.auth-modal-title,.modal-title,.chat-brand-title,.empty-t,.up-t,.chat-welcome h2{
  font-family:var(--font-display);
  letter-spacing:-.02em;
  font-weight:700;
}
.sec-label{letter-spacing:2.4px}

/* ---------- Glass: strong (containers, modals, canvas) ---------- */
.modal-box,.auth-modal,.chat-workspace,.canvas{
  background:
    linear-gradient(var(--glass-fill-2),var(--glass-fill-2)) padding-box,
    var(--glass-grad-border) border-box;
  border:1px solid transparent;
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  box-shadow:var(--glass-hi),var(--shadow-lg);
}

/* ---------- Glass: soft (panels, cards, bars, chips) ---------- */
.chat-sidebar,.chat-topbar,.chat-composer-wrap,.chat-composer,
.prompt-wrap,.upload-box,.hist-item,.chat-suggestion,.chat-bubble,
.mode-tabs,.out-tabs,.auth-tabs,.toast,.auth-user-pill,.chat-model-pill{
  background:var(--glass-fill);
  border:1px solid var(--glass-stroke);
  -webkit-backdrop-filter:blur(calc(var(--glass-blur) - 4px));
  backdrop-filter:blur(calc(var(--glass-blur) - 4px));
  box-shadow:var(--glass-hi);
}
/* keep the upload box's dashed hover affordance + inner glow */
.upload-box{
  border-style:dashed;
  border-color:rgba(255,255,255,.16);
  background:
    radial-gradient(800px 200px at 50% 0%, rgba(109,107,255,.08), transparent 60%),
    var(--glass-fill);
}
.chat-bubble{box-shadow:var(--glass-hi),0 6px 22px rgba(0,0,0,.28)}
.chat-row.user .chat-bubble{background:rgba(109,107,255,.12);border-color:rgba(109,107,255,.22)}

/* ---------- Nav / header: glass bar tinted with the page aurora ---------- */
header{
  background:
    /* soft top glow */
    linear-gradient(180deg, rgba(124,131,255,.12), rgba(4,5,11,0) 72%),
    /* violet -> cyan -> purple accent wash (matches --grad) */
    linear-gradient(90deg, rgba(109,107,255,.12) 0%, rgba(34,211,238,.07) 52%, rgba(139,92,246,.12) 100%),
    /* translucent dark base so the aurora shows through */
    rgba(6,7,16,.5);
  -webkit-backdrop-filter:blur(26px) saturate(160%);
  backdrop-filter:blur(26px) saturate(160%);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(154,160,255,.55),rgba(34,211,238,.5),transparent) 1;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.07),
    0 1px 0 rgba(255,255,255,.04),
    0 22px 48px -30px rgba(34,211,238,.45),
    0 18px 40px -30px rgba(109,107,255,.5);
}

/* ---------- Chat: fold amber into the unified primary ---------- */
.chat-brand-icon,
.chat-welcome-icon{
  background:var(--grad);
  box-shadow:var(--glow);
}
.chat-row.assistant .chat-avatar{
  background:var(--grad);
  box-shadow:0 2px 12px var(--accent-g);
}
.chat-send-btn{
  background:var(--grad);
  box-shadow:var(--glow);
  transition:transform .2s,box-shadow .25s,filter .2s;
}
.chat-send-btn:hover{transform:translateY(-1px);box-shadow:var(--glow-strong);filter:brightness(1.05)}
.chat-suggestion:hover{border-color:rgba(154,160,255,.4);box-shadow:var(--glow)}
.chat-side-btn.primary{background:var(--grad);box-shadow:var(--glow)}

/* The single retained warm-amber accent: the active-model pill */
.chat-model-pill{
  background:var(--amber-g);
  border-color:rgba(245,176,66,.3);
  color:var(--amber-l);
}

/* ---------- Soft glows on interactive elements ---------- */
.gen-btn,.auth-btn.primary,.auth-submit{box-shadow:var(--glow),inset 0 1px 0 rgba(255,255,255,.14)}
.gen-btn:hover:not(:disabled),
.auth-btn.primary:hover,
.auth-submit:hover:not(:disabled){box-shadow:var(--glow-strong),inset 0 1px 0 rgba(255,255,255,.16)}
.mode-tab.on,.out-tab.on,.auth-tab.on{box-shadow:var(--glass-hi),0 4px 16px rgba(0,0,0,.3)}
.chat-icon-btn:hover,.chat-attach-btn:hover{box-shadow:var(--glow)}

/* Focus rings stay on the unified violet */
.set-inp:focus,.set-sel:focus,.modal-row input:focus,.auth-field input:focus,
.chat-model-sel:focus,.chat-side-ta:focus,.prompt-wrap:focus-within,.chat-composer:focus-within{
  border-color:rgba(154,160,255,.7);
  box-shadow:0 0 0 3px var(--accent-g);
}

@media (prefers-reduced-motion: reduce){
  .chat-send-btn,.gen-btn{transition:none}
}

/* =========================================================
   Animated backdrop: aurora mesh + slow-drifting starfield
   Low-contrast, behind all content, reduced-motion aware.
   ========================================================= */
@keyframes auroraMesh{
  0%  {transform:translate3d(-2%,-1%,0) scale(1.06) rotate(0deg)}
  50% {transform:translate3d(2%,2%,0)   scale(1.13) rotate(1.4deg)}
  100%{transform:translate3d(-1%,1.5%,0) scale(1.07) rotate(-1.4deg)}
}

/* Global slow-drifting starfield/particle layer behind content */
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 18% 32%, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1px 1px at 74% 18%, rgba(186,200,255,.45), transparent 100%),
    radial-gradient(1.4px 1.4px at 42% 72%, rgba(150,230,238,.40), transparent 100%),
    radial-gradient(1px 1px at 88% 64%, rgba(255,255,255,.30), transparent 100%),
    radial-gradient(1.6px 1.6px at 60% 44%, rgba(199,170,255,.38), transparent 100%),
    radial-gradient(1px 1px at 30% 88%, rgba(255,255,255,.26), transparent 100%);
  background-size:
    300px 300px, 360px 360px, 420px 420px,
    280px 280px, 480px 480px, 340px 340px;
  background-repeat:repeat;
  opacity:.5;
  animation:starDrift 120s linear infinite;
  will-change:background-position;
}
@keyframes starDrift{
  from{background-position:0 0,0 0,0 0,0 0,0 0,0 0}
  to{background-position:
      0 600px, -360px 720px, 420px 840px,
      -280px 560px, 480px 960px, -340px 680px}
}

@media (prefers-reduced-motion: reduce){
  body::before{animation:none}
  body::after{animation:none}
}

/* =========================================================
   Interactive 3D brand mark (Three.js orb)
   ========================================================= */
[data-orb]{position:relative}
[data-orb] canvas{position:absolute;inset:0;width:100%;height:100%;display:block;pointer-events:none}
/* Hide the SVG/img fallback once the WebGL orb has mounted */
[data-orb][data-orb-ready] .orb-fallback{opacity:0;visibility:hidden}

/* Nav logo: let the planet float, drop the inner tile fill when live */
.logo-mark[data-orb]{overflow:visible}
.logo-mark[data-orb][data-orb-ready]{background:transparent;border-color:transparent;box-shadow:0 6px 22px var(--accent-g)}

/* Empty-state centerpiece (image studio) */
.empty-orb{position:relative;width:132px;height:132px;margin:0 auto 6px;display:flex;align-items:center;justify-content:center;filter:drop-shadow(0 12px 36px rgba(109,107,255,.28))}
.empty-orb .orb-fallback{margin:0}

/* Empty-state centerpiece (chat welcome) */
.chat-welcome-icon[data-orb]{width:128px;height:128px;background:transparent!important;box-shadow:none;border-radius:0;filter:drop-shadow(0 12px 36px rgba(109,107,255,.3))}
.chat-welcome-icon[data-orb][data-orb-ready]{color:transparent}

/* =========================================================
   MOTION & MICRO-INTERACTIONS
   (transform/opacity only — 60fps, no layout shift;
    every effect is disabled under prefers-reduced-motion)
   ========================================================= */

/* ---- Orb stacking so the aurora sits behind the 3D mark ---- */
.empty-orb,.chat-welcome-icon[data-orb]{isolation:isolate}
[data-orb] canvas,[data-orb] .orb-fallback{z-index:1}
.empty-orb .orb-fallback{position:relative}

/* ---- Glowing aurora/shimmer behind the empty-state marks ---- */
.empty-orb::before,
.chat-welcome-icon[data-orb]::before{
  content:"";
  position:absolute;
  inset:-28%;
  z-index:0;
  border-radius:50%;
  background:
    radial-gradient(circle at 50% 45%, rgba(109,107,255,.40), transparent 60%),
    radial-gradient(circle at 62% 60%, rgba(34,211,238,.26), transparent 62%);
  filter:blur(26px);
  opacity:.6;
  animation:auraPulse 6.5s ease-in-out infinite;
}
@keyframes auraPulse{
  0%,100%{transform:scale(.9) rotate(0deg);opacity:.45}
  50%{transform:scale(1.1) rotate(8deg);opacity:.8}
}

/* ---- Entrance: fade + slide up ---- */
@keyframes revealUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.empty-orb,.chat-welcome-icon[data-orb],
.empty-t,.empty-s,
.chat-welcome h3,.chat-welcome p{
  animation:revealUp .6s cubic-bezier(.2,.7,.2,1) both;
}
.empty-t,.chat-welcome h3{animation-delay:.10s}
.empty-s,.chat-welcome p{animation-delay:.18s}

/* Staggered chips / suggestion cards + glow-on-hover */
.hints .hint,
.chat-suggestions .chat-suggestion{animation:revealUp .5s cubic-bezier(.2,.7,.2,1) both}
.hints .hint:nth-child(1),.chat-suggestions .chat-suggestion:nth-child(1){animation-delay:.06s}
.hints .hint:nth-child(2),.chat-suggestions .chat-suggestion:nth-child(2){animation-delay:.12s}
.hints .hint:nth-child(3),.chat-suggestions .chat-suggestion:nth-child(3){animation-delay:.18s}
.hints .hint:nth-child(4),.chat-suggestions .chat-suggestion:nth-child(4){animation-delay:.24s}
.hint{transition:transform .2s,box-shadow .2s,border-color .2s,color .2s}
.hint:hover{transform:translateY(-1px);border-color:rgba(154,160,255,.5);color:var(--accent-l);box-shadow:var(--glow)}
.chat-suggestion{transition:transform .2s,box-shadow .25s,border-color .2s}
.chat-suggestion:hover{transform:translateY(-2px)}

/* ---- Scroll/load reveal (JS-driven; safe default = visible) ---- */
.reveal{opacity:0;transform:translateY(18px);
  transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);
  transition-delay:calc(var(--rev-i,0) * 70ms)}
.reveal.reveal-in{opacity:1;transform:none}

/* ---- Top-level mode crossfade (re-fires on display toggle) ---- */
@keyframes fadeScale{from{opacity:0;transform:translateY(10px) scale(.994)}to{opacity:1;transform:none}}
.studio-layout:not(.hidden),
.chat-workspace.active{animation:fadeScale .45s cubic-bezier(.2,.7,.2,1) both}

/* ---- Generate button: flowing gradient + hover lift + loading pulse ---- */
.gen-btn{background-size:220% 220%;animation:gradFlow 9s ease infinite;
  transition:transform .2s,box-shadow .25s,filter .2s}
@keyframes gradFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.gen-btn:hover:not(:disabled){transform:translateY(-2px) scale(1.012)}
.gen-btn.generating{animation:gradFlow 3.2s ease infinite,genPulse 1.5s ease-in-out infinite}
@keyframes genPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(109,107,255,0),var(--glow)}
  50%{box-shadow:0 0 0 6px rgba(109,107,255,.12),var(--glow-strong)}
}
.gen-btn.generating .shimmer{animation:shim 1.1s linear infinite}

/* ---- Nav tabs: animated underline + glow on active ---- */
.mode-tab{position:relative}
.mode-tab::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad);box-shadow:0 0 10px var(--accent-g);
  opacity:0;transform:scaleX(.35);transform-origin:center;
  transition:opacity .25s ease,transform .3s cubic-bezier(.2,.7,.2,1)}
.mode-tab.on::after{opacity:1;transform:scaleX(1)}

/* ---- Input glow: soft pulse on focus ---- */
.prompt-wrap:focus-within,
.chat-composer:focus-within{animation:inputPulse 2.6s ease-in-out infinite}
@keyframes inputPulse{
  0%,100%{box-shadow:0 0 0 3px var(--accent-g)}
  50%{box-shadow:0 0 0 5px rgba(109,107,255,.10),0 0 22px rgba(109,107,255,.20)}
}

/* ---- Thinking indicator: dots + soft shimmer sweep ---- */
.chat-typing{position:relative;overflow:hidden}
.chat-typing::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(154,160,255,.18),transparent);
  transform:translateX(-100%);animation:thinkShim 1.6s ease-in-out infinite}
@keyframes thinkShim{0%{transform:translateX(-100%)}60%,100%{transform:translateX(100%)}}

/* ---- Streaming caret on the latest assistant message ---- */
.chat-row.assistant:last-child .chat-body{position:relative}

/* ---- Full reduced-motion fallback: keep simple, kill motion ---- */
@media (prefers-reduced-motion: reduce){
  .empty-orb::before,.chat-welcome-icon[data-orb]::before,
  .empty-orb,.chat-welcome-icon[data-orb],
  .empty-t,.empty-s,.chat-welcome h3,.chat-welcome p,
  .hints .hint,.chat-suggestions .chat-suggestion,
  .studio-layout:not(.hidden),.chat-workspace.active,
  .gen-btn,.gen-btn.generating,.gen-btn.generating .shimmer,
  .prompt-wrap:focus-within,.chat-composer:focus-within,
  .chat-typing::after{animation:none!important}
  .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .gen-btn:hover:not(:disabled){transform:none}
  .mode-tab::after{transition:none}
}

/* ---- Keyboard focus visibility (accessibility) ---- */
.mode-tab:focus-visible,.hint:focus-visible,.chat-suggestion:focus-visible,
.gen-btn:focus-visible,.auth-btn:focus-visible,.chat-side-btn:focus-visible,
.chat-icon-btn:focus-visible,.res-btn:focus-visible,.out-tab:focus-visible,
.chat-send-btn:focus-visible,.up-url-btn:focus-visible,.prev-btn:focus-visible{
  outline:2px solid var(--accent-l);
  outline-offset:2px;
  border-radius:8px;
}