/* ============================================================
   Pagewright · desktop client design system
   Calm "studio" aesthetic: airy light canvas, ink-black actions,
   a single warm accent tied to the editorial output. Dependency-free.
   ============================================================ */
:root{
  /* neutrals */
  --bg:#F4F4F2; --surface:#FFFFFF; --surface-2:#FAFAF9;
  --ink:#16161A; --ink-2:#3A3A40; --muted:#86868C; --faint:#A8A8AE;
  --line:#E7E6E2; --line-2:#DEDDD8;
  /* accent (ties to the product's editorial red) */
  --accent:#DD2A12; --accent-press:#B71C08; --accent-soft:#FBEAE6;
  --gold:#A9823C; --ok:#1F9D55; --warn:#B7791F;
  /* shadows */
  --sh-1:0 1px 2px rgba(20,20,26,.05), 0 1px 1px rgba(20,20,26,.04);
  --sh-2:0 6px 16px -8px rgba(20,20,26,.18), 0 2px 6px -2px rgba(20,20,26,.08);
  --sh-3:0 20px 48px -20px rgba(20,20,26,.32), 0 8px 20px -12px rgba(20,20,26,.16);
  --ring:0 0 0 3px rgba(221,42,18,.16);
  --r-s:8px; --r-m:12px; --r-l:16px; --r-xl:22px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  display:flex;flex-direction:column;overflow:hidden;
  font-size:14px;line-height:1.5;letter-spacing:.1px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
svg{display:block}
.hidden{display:none!important}
.link{color:var(--accent);font-weight:600}
em{font-style:normal}
::selection{background:var(--accent-soft)}

/* scrollbars */
*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-thumb{background:#0000001f;border-radius:99px;border:3px solid transparent;background-clip:padding-box}
*::-webkit-scrollbar-thumb:hover{background:#00000033;background-clip:padding-box}

/* ───────── App bar ───────── */
.appbar{
  flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;
  height:60px;padding:0 22px;background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line);
  z-index:20;
}
.brand{display:flex;align-items:center;gap:12px}
.mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(150deg,var(--ink),#33333b);color:#fff;box-shadow:var(--sh-2);
}
.brand-text{font-weight:700;font-size:15.5px;letter-spacing:.2px;line-height:1.1}
.brand-text em{display:block;font-size:11px;font-weight:500;color:var(--muted);margin-top:2px;letter-spacing:.6px}
.appbar-right{display:flex;align-items:center;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 13px;border-radius:99px;
  background:var(--surface);border:1px solid var(--line);font-size:12.5px;font-weight:600;color:var(--ink-2);
  box-shadow:var(--sh-1);transition:.18s;
}
.pill:hover{border-color:var(--line-2)}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--faint);transition:.2s}
.pill.ok .dot{background:var(--ok);box-shadow:0 0 0 3px #1f9d5522}
.pill.warn .dot{background:var(--warn);box-shadow:0 0 0 3px #b7791f22}
.lang-toggle{height:32px;min-width:38px;padding:0 11px;border-radius:99px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);font-size:12.5px;font-weight:700;letter-spacing:.4px;box-shadow:var(--sh-1);transition:.16s}
.lang-toggle:hover{border-color:var(--ink-2);color:var(--ink)}
.icon-btn{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;color:var(--ink-2);
  border:1px solid transparent;transition:.16s;
}
.icon-btn:hover{background:var(--surface);border-color:var(--line);color:var(--ink)}

/* ───────── Studio layout ───────── */
.studio{flex:1 1 auto;display:grid;grid-template-columns:minmax(380px,440px) 1fr;gap:18px;padding:18px;min-height:0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--sh-1);min-height:0;display:flex;flex-direction:column;overflow:hidden}
.composer{position:relative}
.panel-scroll{flex:1 1 auto;overflow:auto;padding:20px 20px 8px}
@media(max-width:900px){.studio{grid-template-columns:1fr;overflow:auto}.canvas{min-height:420px}}

/* ───────── Segmented control ───────── */
.seg{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;margin-bottom:20px}
.seg-btn{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;gap:7px;height:36px;border-radius:9px;font-weight:600;font-size:13.5px;color:var(--muted);transition:color .2s}
.seg-btn.active{color:var(--ink)}
.seg-btn svg{opacity:.85}
.seg-ind{position:absolute;top:4px;left:4px;width:calc(50% - 6px);height:calc(100% - 8px);background:var(--surface);border-radius:9px;box-shadow:var(--sh-1);border:1px solid var(--line);transition:transform .26s cubic-bezier(.4,.1,.2,1)}
.seg-ind.right{transform:translateX(calc(100% + 4px))}

/* ───────── Fields ───────── */
.field{display:block;margin-bottom:16px}
.field-label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:8px;letter-spacing:.2px}
.field-label .opt{color:var(--faint);font-weight:500;font-size:11.5px;margin-left:4px}
textarea,input[type=text],input[type=url],input[type=password],select{
  width:100%;font-family:inherit;font-size:13.5px;color:var(--ink);background:var(--surface);
  border:1px solid var(--line-2);border-radius:10px;padding:11px 13px;transition:border-color .16s, box-shadow .16s;
}
textarea{resize:vertical;min-height:96px;line-height:1.65}
textarea:focus,input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:var(--ring)}
input::placeholder,textarea::placeholder{color:var(--faint)}
.field{position:relative}
.counter{position:absolute;right:10px;bottom:10px;font-size:11px;color:var(--faint);background:linear-gradient(transparent,var(--surface) 40%);padding:2px 4px;pointer-events:none}
.input-wrap{position:relative;display:flex;align-items:center}
.input-wrap svg{position:absolute;left:12px;color:var(--faint)}
.input-wrap input{padding-left:36px}
.select-wrap{position:relative}
.select-wrap select{appearance:none;-webkit-appearance:none;padding-right:34px;cursor:pointer}
.select-wrap .chev{position:absolute;right:11px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field.compact{margin-bottom:4px}
.note{font-size:12px;line-height:1.6;color:var(--muted);margin:6px 0 0}
.note b{color:var(--ink-2)}
.divider{height:1px;background:var(--line);margin:18px 0}

/* ───────── Dropzone ───────── */
.dropzone{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;
  padding:30px 18px;border:1.5px dashed var(--line-2);border-radius:14px;background:var(--surface-2);
  color:var(--muted);transition:.2s;cursor:pointer;
}
.dropzone:hover{border-color:var(--accent);background:#fff}
.dropzone:focus-visible{outline:none;box-shadow:var(--ring);border-color:var(--accent)}
.dropzone.drag{border-color:var(--accent);background:var(--accent-soft);transform:scale(.995)}
.dz-ico{color:var(--accent);opacity:.9}
.dz-title{font-size:13.5px;color:var(--ink-2);font-weight:500}
.dz-sub{font-size:11.5px;color:var(--faint)}
.thumbs{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0 4px}
.thumbs .t{position:relative;width:64px;height:64px;border-radius:10px;overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--sh-1);animation:pop .22s ease}
.thumbs .t img{width:100%;height:100%;object-fit:cover}
.thumbs .t .x{position:absolute;top:3px;right:3px;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;
  background:rgba(18,18,22,.62);color:#fff;font-size:13px;line-height:1;opacity:0;transition:.15s;backdrop-filter:blur(4px)}
.thumbs .t:hover .x{opacity:1}
@keyframes pop{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}

/* ───────── Composer footer / CTA ───────── */
.composer-foot{flex:0 0 auto;padding:14px 20px 16px;border-top:1px solid var(--line);background:linear-gradient(var(--surface),var(--surface-2))}
.cta{
  width:100%;display:inline-flex;align-items:center;justify-content:center;gap:9px;height:48px;border-radius:13px;
  background:linear-gradient(180deg,#2a2a31,var(--ink));color:#fff;font-size:15px;font-weight:650;letter-spacing:.3px;
  box-shadow:0 8px 20px -10px rgba(20,20,26,.6),inset 0 1px 0 rgba(255,255,255,.08);transition:.18s;
}
.cta:hover{transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(20,20,26,.7)}
.cta:active{transform:translateY(0)}
.cta svg{transition:transform .2s}
.cta:hover svg{transform:translateX(3px)}
.cta:disabled{opacity:.55;cursor:progress;transform:none;box-shadow:var(--sh-1)}
.privacy{font-size:11px;color:var(--faint);text-align:center;margin:10px 0 0}

/* ───────── Canvas states ───────── */
.canvas{position:relative}
.canvas-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px}
.canvas-state.result{align-items:stretch;justify-content:flex-start;padding:0}
/* empty */
#stateEmpty h2{font-size:18px;margin:22px 0 6px}
#stateEmpty p{color:var(--muted);font-size:13px;max-width:280px;text-align:center}
.mock{width:188px;border:1px solid var(--line);border-radius:14px;padding:16px;background:var(--surface-2);box-shadow:var(--sh-1);opacity:.9}
.mock-bar{height:34px;border-radius:8px;background:linear-gradient(90deg,#222,#3a3a42)}
.mock-line{height:9px;border-radius:5px;background:var(--line-2);margin-top:11px}
.mock-line.w70{width:70%}.mock-line.w40{width:40%}.mock-line.w60{width:60%}.mock-line.w30{width:30%}
.mock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:13px}
.mock-grid i{height:40px;border-radius:8px;background:linear-gradient(135deg,#ececea,#f6f5f3)}

/* progress */
#stateProgress{padding:30px}
.prog-card{width:100%;max-width:460px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-2);padding:24px 26px}
.prog-head{display:flex;align-items:center;gap:13px;margin-bottom:18px}
.prog-head h3{font-size:16px;font-weight:650}
.orbit{width:22px;height:22px;border-radius:50%;border:2.5px solid var(--accent-soft);border-top-color:var(--accent);animation:spin .8s linear infinite;flex:0 0 auto}
@keyframes spin{to{transform:rotate(360deg)}}
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline li{position:relative;padding:0 0 16px 28px;font-size:13.5px;color:var(--ink-2)}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:7px;top:18px;bottom:-2px;width:2px;background:var(--line)}
.timeline li:last-child::before{display:none}
.timeline li .node{position:absolute;left:0;top:1px;width:16px;height:16px;border-radius:50%;background:var(--surface);border:2px solid var(--line-2)}
.timeline li.done{color:var(--muted)}
.timeline li.done .node{background:var(--ok);border-color:var(--ok)}
.timeline li.done .node::after{content:"";position:absolute;left:4px;top:1.5px;width:4px;height:7px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.timeline li.active{color:var(--ink);font-weight:600}
.timeline li.active .node{border-color:var(--accent);animation:pulse 1.2s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(221,42,18,.28)}100%{box-shadow:0 0 0 7px rgba(221,42,18,0)}}
.timeline li.fail{color:var(--accent);font-weight:600}
.timeline li.fail .node{background:var(--accent);border-color:var(--accent)}

/* result */
.result-bar{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:14px 18px;border-bottom:1px solid var(--line);background:var(--surface)}
.result-meta{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:600;color:var(--ink-2)}
.result-meta .check{display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--ok);color:#fff;font-size:13px}
.result-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;border-radius:9px;font-size:12.5px;font-weight:600;transition:.15s;border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2)}
.btn:hover{border-color:var(--ink-2);color:var(--ink)}
.btn.solid{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.solid:hover{background:#000}
.btn svg{width:15px;height:15px}
.paper-frame{flex:1 1 auto;min-height:0;overflow:auto;background:
  radial-gradient(circle at 1px 1px,#0000000a 1px,transparent 0) 0 0/22px 22px,var(--surface-2);
  padding:26px;display:flex;justify-content:center}
.paper{align-self:flex-start;background:#fff;border-radius:6px;box-shadow:var(--sh-3);max-width:420px;overflow:hidden}
.paper img{display:block;width:100%}
.panel-strip{flex:0 0 auto;display:flex;gap:8px;overflow-x:auto;padding:12px 18px;border-top:1px solid var(--line);background:var(--surface)}
.panel-strip a{flex:0 0 auto;width:56px;border:1px solid var(--line-2);border-radius:7px;overflow:hidden;box-shadow:var(--sh-1);transition:.15s}
.panel-strip a:hover{transform:translateY(-2px);border-color:var(--ink-2)}
.panel-strip a img{width:100%;display:block}

/* ───────── Settings modal ───────── */
.modal-host{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px}
.modal-backdrop{position:absolute;inset:0;background:rgba(18,18,22,.42);backdrop-filter:blur(4px);animation:fade .2s ease}
.modal{position:relative;width:460px;max-width:100%;max-height:90vh;overflow:auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-3);padding:24px;animation:rise .26s cubic-bezier(.3,.1,.2,1)}
@keyframes fade{from{opacity:0}}
@keyframes rise{from{opacity:0;transform:translateY(12px) scale(.98)}}
.modal-head{display:flex;align-items:center;justify-content:space-between}
.modal-head h2{font-size:18px;font-weight:700}
.modal-sub{color:var(--muted);font-size:12.5px;margin:6px 0 18px;line-height:1.6}
.provider-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.prov-card{text-align:left;padding:13px 14px;border:1.5px solid var(--line-2);border-radius:12px;background:var(--surface-2);transition:.16s}
.prov-card:hover{border-color:var(--line-2);background:#fff}
.prov-card.active{border-color:var(--ink);background:#fff;box-shadow:var(--sh-1)}
.prov-name{display:block;font-weight:650;font-size:13.5px}
.prov-desc{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.ghost-icon{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:30px;height:30px;display:grid;place-items:center;border-radius:8px;color:var(--muted)}
.ghost-icon:hover{background:var(--surface-2);color:var(--ink)}
.input-wrap input[type=password],.input-wrap input#apiKey{padding-left:13px;padding-right:40px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}
.btn-ghost{height:40px;padding:0 18px;border-radius:10px;font-weight:600;font-size:13.5px;color:var(--ink-2);border:1px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--ink-2);color:var(--ink)}
.btn-primary{height:40px;padding:0 20px;border-radius:10px;font-weight:650;font-size:13.5px;background:var(--ink);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:#000}

/* ───────── Toasts ───────── */
.toast-host{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);z-index:80;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{display:flex;align-items:center;gap:9px;padding:11px 16px;border-radius:11px;background:var(--ink);color:#fff;font-size:13px;font-weight:550;box-shadow:var(--sh-3);animation:toastin .26s cubic-bezier(.2,.8,.2,1)}
.toast.ok{background:#15301f;border:1px solid #1f9d5566}
.toast.err{background:#3a1410;border:1px solid #dd2a1266}
.toast .ti{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:12px}
.toast.ok .ti{background:var(--ok)}.toast.err .ti{background:var(--accent)}
@keyframes toastin{from{opacity:0;transform:translateY(10px)}}
.toast.out{animation:toastout .25s forwards}
@keyframes toastout{to{opacity:0;transform:translateY(8px)}}

/* ───────── Library / History overlay ───────── */
.lib-host{position:fixed;inset:0;z-index:55;display:flex;flex-direction:column;background:var(--bg)}
.lib-panel{flex:1;display:flex;flex-direction:column;min-height:0}
.lib-head{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.7);backdrop-filter:blur(14px)}
.lib-head h2{font-size:17px;font-weight:700}
.lib-body{flex:1;overflow:auto;padding:22px 24px 40px}
.lib-empty{color:var(--muted);text-align:center;padding:80px 20px;font-size:14px}
.lib-group{margin-bottom:30px}
.lib-group-h{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.lib-proj{font-size:15px;font-weight:700}
.lib-count{font-size:12px;color:var(--muted)}
.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.lib-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:var(--sh-1);transition:.18s;display:flex;flex-direction:column}
.lib-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.lib-thumb{position:relative;cursor:zoom-in;background:var(--surface-2);aspect-ratio:380/360;overflow:hidden}
.lib-thumb img{width:100%;height:100%;object-fit:cover;object-position:top}
.lib-ver{position:absolute;top:8px;left:8px;background:var(--ink);color:#fff;font:700 11px/1 var(--font);
  padding:4px 8px;border-radius:6px;letter-spacing:.3px}
.lib-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px 6px}
.lib-date{font-size:11.5px;color:var(--muted)}
.lib-badges{display:flex;gap:5px}
.lib-badges i{font-style:normal;font-size:10px;color:var(--ink-2);background:var(--surface-2);
  border:1px solid var(--line);border-radius:5px;padding:2px 6px}
.lib-actions{display:flex;flex-wrap:wrap;gap:6px;padding:6px 12px 12px;margin-top:auto}
.lib-btn{font-size:12px;font-weight:600;color:var(--ink-2);background:var(--surface);border:1px solid var(--line-2);
  border-radius:7px;padding:6px 10px;text-decoration:none;transition:.14s;cursor:pointer}
.lib-btn:hover{border-color:var(--ink-2);color:var(--ink)}
.lib-btn.danger:hover{border-color:var(--accent);color:var(--accent)}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:70;background:rgba(16,16,20,.86);backdrop-filter:blur(6px);
  display:flex;align-items:flex-start;justify-content:center;animation:fade .2s ease}
.lb-scroll{max-width:760px;width:100%;max-height:100vh;overflow:auto;padding:40px 16px}
.lb-scroll img{width:100%;border-radius:6px;box-shadow:var(--sh-3)}
.lb-close{position:fixed;top:18px;right:22px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.12);color:#fff;backdrop-filter:blur(8px);transition:.15s}
.lb-close:hover{background:rgba(255,255,255,.22)}

/* selected-for-compare card */
.lib-card.cmp-on{outline:2px solid var(--accent);outline-offset:1px}
.lib-card.cmp-on .lib-btn:nth-child(3){border-color:var(--accent);color:var(--accent)}

/* ───────── Version compare (side by side) ───────── */
.cmp-host{position:fixed;inset:0;z-index:65;background:var(--bg);display:flex;flex-direction:column}
.cmp-bar{flex:0 0 auto;display:flex;align-items:center;gap:16px;padding:14px 22px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.7);backdrop-filter:blur(14px)}
.cmp-bar h3{font-size:16px;font-weight:700;margin-right:auto}
.cmp-sync{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);cursor:pointer;user-select:none}
.cmp-sync input{width:15px;height:15px;accent-color:var(--accent)}
.cmp-grid{flex:1;min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.cmp-col{background:var(--surface-2);min-height:0;display:flex;flex-direction:column}
.cmp-h{flex:0 0 auto;display:flex;align-items:baseline;gap:10px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--line)}
.cmp-h b{font:700 14px/1 var(--font)}
.cmp-h span{font-size:11.5px;color:var(--muted)}
.cmp-scroll{flex:1;overflow:auto;padding:20px;display:flex;justify-content:center}
.cmp-scroll img{width:100%;max-width:380px;align-self:flex-start;border-radius:5px;box-shadow:var(--sh-2)}

.tcard .ic .mono{font:800 26px/1 var(--font-latin);color:var(--line2)}