/* ---- Design system (shadcn-inspired, neutral zinc) ---- */
:root{
  --background:#fafafa; --surface:#ffffff; --foreground:#09090b;
  --muted:#71717a; --muted-bg:#f4f4f5; --border:#e4e4e7; --border-strong:#d4d4d8;
  --primary:#18181b; --primary-fg:#fafafa; --secondary:#f4f4f5; --secondary-fg:#18181b;
  --destructive:#dc2626; --success:#15803d; --success-bg:#f0fdf4;
  --radius:.5rem; --radius-sm:.375rem;
  --shadow:0 1px 2px rgba(0,0,0,.06);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
html[data-theme="dark"]{color-scheme:dark}
:root[data-theme="dark"]{
  --background:#09090b; --surface:#141417; --foreground:#fafafa;
  --muted:#a1a1aa; --muted-bg:#26262b; --border:#2a2a30; --border-strong:#3f3f46;
  --primary:#fafafa; --primary-fg:#09090b; --secondary:#26262b; --secondary-fg:#fafafa;
  --destructive:#f87171; --success:#4ade80; --success-bg:#052e16;
  --shadow:0 1px 2px rgba(0,0,0,.4);
}
:root[data-theme="dark"] .header{background:rgba(9,9,11,.85)}
:root[data-theme="dark"] .actionbar{background:rgba(9,9,11,.9)}
:root[data-theme="dark"] .hero:hover{background:#1b1b1f}
:root[data-theme="dark"] .btn-default:hover{background:#e4e4e7}
:root[data-theme="dark"] .btn-secondary:hover{background:#34343a}
:root[data-theme="dark"] .btn-destructive:hover{background:#450a0a}
:root[data-theme="dark"] .badge-red{background:#450a0a;color:#fca5a5;border-color:#7f1d1d}
:root[data-theme="dark"] .badge-blue{background:#172554;color:#93c5fd;border-color:#1e3a8a}
:root[data-theme="dark"] .badge-green{background:#052e16;color:#4ade80;border-color:#14532d}
:root[data-theme="dark"] .thumb.is-pdf{background:#450a0a;color:#fca5a5;border-color:#7f1d1d}
:root[data-theme="dark"] .input::placeholder{color:#63636b}
:root[data-theme="dark"] .input:focus,:root[data-theme="dark"] .select:focus{outline-color:#ffffff33}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:14px;line-height:1.5;color:var(--foreground);background:var(--background)}
h1{font-size:17px;margin:0;font-weight:600;letter-spacing:-.01em}
h2{font-size:15px;margin:0;font-weight:600}
p{margin:0}
.muted{color:var(--muted)} .small{font-size:12.5px} .grow{flex:1}
.container{max-width:880px;margin:0 auto;padding:0 16px}
body.has-files{padding-bottom:64px}
.page{padding-top:12px}
.link{color:var(--foreground);text-decoration:underline;text-underline-offset:2px}

/* header */
.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;gap:10px}
.header-right{display:flex;align-items:center;gap:10px}
/* dropdown menu (theme) */
.menu-wrap{position:relative}
.menu{position:absolute;top:calc(100% + 6px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.14);padding:4px;min-width:148px;z-index:40}
.menu-btn{display:flex;align-items:center;gap:8px;width:100%;font:inherit;font-size:13px;padding:7px 9px;border:none;border-radius:6px;background:transparent;color:var(--foreground);cursor:pointer}
.menu-btn:hover{background:var(--muted-bg)}
.menu-btn svg{width:14px;height:14px;color:var(--muted)}
.menu-btn .tick{margin-left:auto;visibility:hidden;display:inline-flex}
.menu-btn.is-active .tick{visibility:visible}
/* help popover opens upward (it lives in the bottom bar) */
.help-pop{top:auto;bottom:calc(100% + 8px);right:0;min-width:230px;max-width:270px;white-space:normal;font-size:12.5px;line-height:1.55;color:var(--muted);padding:10px 12px}
.brand{display:flex;gap:10px;align-items:center}
.brand .sub{font-size:12.5px;color:var(--muted)}
.brand-mark{width:32px;height:32px;border-radius:8px;background:var(--primary);color:var(--primary-fg);display:inline-flex;align-items:center;justify-content:center}
.brand-mark svg{width:17px;height:17px}
/* navbar upload button — echoes the hero dropzone's dashed affordance */
.btn-upload{display:inline-flex;align-items:center;justify-content:center;gap:7px;font:inherit;font-size:12.5px;font-weight:500;height:30px;padding:0 12px;border-radius:8px;border:1.5px dashed var(--border-strong);background:transparent;color:var(--muted);cursor:pointer;white-space:nowrap}
.btn-upload:hover{border-color:var(--foreground);color:var(--foreground);background:var(--muted-bg)}
.btn-upload svg{width:14px;height:14px}

/* badge / dot */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;border-radius:999px;padding:2px 10px;border:1px solid transparent;white-space:nowrap}
.badge-outline{border-color:var(--border);background:var(--surface);color:var(--muted)}
.badge-red{background:#fef2f2;color:#b91c1c;border-color:#fecaca}
.badge-blue{background:#eff6ff;color:#1d4ed8;border-color:#bfdbfe}
.badge-green{background:var(--success-bg);color:var(--success);border-color:#bbf7d0}
.badge-gray{background:var(--muted-bg);color:var(--muted);border-color:var(--border)}
.dot{width:6px;height:6px;border-radius:99px;background:#22c55e}

/* icon spans inside buttons: kill baseline gap so glyphs center vertically */
span[data-icon]{display:inline-flex;align-items:center;justify-content:center;line-height:0}
span[data-icon] svg{flex-shrink:0}

/* buttons (shadcn sizes) */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font:inherit;font-size:13.5px;font-weight:500;
  height:36px;padding:0 14px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;background:transparent;color:var(--foreground);white-space:nowrap}
.btn svg{width:15px;height:15px}
.btn-sm{height:30px;padding:0 11px;font-size:12.5px}
.btn-icon{width:30px;height:30px;padding:0}
.btn-default{background:var(--primary);color:var(--primary-fg)} .btn-default:hover{background:#27272a}
.btn-secondary{background:var(--secondary);color:var(--secondary-fg);border-color:var(--border)} .btn-secondary:hover{background:#e9e9ec}
.btn-outline{background:var(--surface);border-color:var(--border);box-shadow:var(--shadow)} .btn-outline:hover{background:var(--muted-bg)}
.btn-ghost:hover{background:var(--muted-bg)}
.btn-destructive{color:var(--destructive)} .btn-destructive:hover{background:#fef2f2}
.btn:disabled{opacity:.5;cursor:default}
.icon-btn{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:6px;color:var(--muted);cursor:pointer}
.icon-btn:hover{background:var(--muted-bg);color:var(--foreground)} .icon-btn svg{width:15px;height:15px}

/* inputs */
.input,.select{font:inherit;font-size:13px;height:32px;padding:0 9px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--foreground);box-shadow:var(--shadow)}
.input:focus,.select:focus{outline:2px solid #18181b22;outline-offset:0;border-color:var(--border-strong)}
.input::placeholder{color:#a1a1aa}
.select{cursor:pointer;padding-right:6px}
.select-sm{height:28px;font-size:12.5px}
input[type=number].input{width:100%}
.checkbox{width:15px;height:15px;accent-color:var(--primary);cursor:pointer}
input[type=range]{accent-color:var(--primary)}
input[type=color]{width:30px;height:24px;border:1px solid var(--border);border-radius:6px;background:var(--surface);padding:1px;cursor:pointer}

/* hero (empty state = big drop target) + whole-page drop overlay */
.hero{margin:26px 0 14px;border:1.5px dashed var(--border-strong);border-radius:12px;background:var(--surface);
  display:flex;flex-direction:column;gap:6px;align-items:center;text-align:center;padding:64px 24px;cursor:pointer;transition:.15s}
.hero:hover{border-color:var(--foreground)}
.hero h2{font-size:18px}
.drop-overlay{position:fixed;inset:0;z-index:60;background:rgba(9,9,11,.45);display:flex;align-items:center;justify-content:center;padding:20px}
.drop-overlay-card{background:var(--surface);border-radius:12px;padding:28px 36px;display:flex;flex-direction:column;gap:4px;align-items:center;border:2px dashed var(--foreground)}
.dz-icon{width:36px;height:36px;border-radius:9px;background:var(--muted-bg);display:flex;align-items:center;justify-content:center;color:var(--muted);flex-shrink:0}
.dz-icon svg{width:18px;height:18px}
.dz-text p:first-child{font-size:13.5px}

/* toolbar */
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:2px 0 8px;flex-wrap:wrap}
.toolbar-left{display:flex;gap:8px;align-items:baseline}
.count{font-size:13px;font-weight:600}
.check-row{display:inline-flex;gap:7px;align-items:center;color:var(--muted);cursor:pointer}
.toolbar-right{display:flex;gap:12px;align-items:center}

/* file cards (compact) */
.file-list{display:flex;flex-direction:column;gap:8px}
.fcard{background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);padding:8px 10px;display:grid;grid-template-columns:auto 36px 1fr auto;gap:8px;align-items:start}
.fcard.processing{opacity:.75}
.fcheck{padding-top:4px;display:flex;flex-direction:column;gap:1px;align-items:center}
.drag-handle{display:inline-flex;color:var(--border-strong);cursor:grab;padding:3px;border-radius:4px;touch-action:none}
.drag-handle:hover{color:var(--muted);background:var(--muted-bg)}
.drag-handle:active{cursor:grabbing}
.icon-btn.order{width:22px;height:20px} .icon-btn.order svg{width:12px;height:12px}
.fcard.drop-before{box-shadow:0 -2px 0 0 var(--primary)}
.fcard.drop-after{box-shadow:0 2px 0 0 var(--primary)}
.fcard.dragging{opacity:.4}
.drag-ghost{position:fixed;top:-200px;left:0;background:var(--primary);color:var(--primary-fg);font-size:12.5px;font-weight:500;padding:6px 12px;border-radius:6px;white-space:nowrap;pointer-events:none;z-index:99}
.thumb[role=button]{cursor:zoom-in;position:relative}
.thumb[role=button]:hover{border-color:var(--border-strong)}
.thumb[role=button]:hover::after{content:"";position:absolute;inset:0;background:rgba(9,9,11,.12)}
.thumb{width:36px;height:36px;border-radius:8px;border:1px solid var(--border);background:var(--muted-bg);overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb svg{width:19px;height:19px}
.thumb.is-pdf{background:#fef2f2;color:#b91c1c;border-color:#fecaca}
.fmain{min-width:0}
.fhead{display:flex;align-items:center;gap:4px;min-width:0}
.name-group{display:inline-flex;align-items:center;gap:2px;min-width:0;flex:1}
.name-group .fname{flex:0 1 auto;min-width:0}
.name-group .rename{flex-shrink:0}
.status-slot{display:inline-flex;align-items:center}
.status-slot:empty{display:none}
.fname{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rename-input{font:inherit;font-size:13px;height:28px;border:1px solid var(--border-strong);border-radius:6px;padding:0 8px;width:min(260px,60%)}
.fmeta{font-size:11.5px;color:var(--muted);margin-top:0}
.fgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-top:6px}
@media(min-width:721px){
  /* compact fixed-width columns, left-aligned. Shared fields share widths:
     Target 180 / Quality 112 / Format 150 everywhere — no per-card drift. */
  .fgrid{grid-template-columns:minmax(0,180px) minmax(0,112px) minmax(0,150px);justify-content:start}
  .fgrid.four{grid-template-columns:minmax(0,180px) minmax(0,168px) minmax(0,150px) minmax(0,106px)}
}
.field.end{justify-content:flex-end}
.field{display:flex;flex-direction:column;gap:2px;min-width:0}
.field>span{font-size:11px;font-weight:500;color:var(--muted)}
.fgrid .input,.fgrid .select{height:30px;font-size:12.5px}
.inline-group{display:flex;gap:0} .inline-group .input:first-child{border-radius:6px 0 0 6px} .inline-group .select:last-child{border-radius:0 6px 6px 0;border-left:none}
.dim-row{display:flex;gap:6px}
details.adv{margin-top:6px;border-top:1px solid var(--border);padding-top:6px}
details.adv summary{font-size:12px;color:var(--muted);cursor:pointer;user-select:none}
.adv-grid{display:flex;flex-wrap:wrap;gap:6px 12px;margin-top:6px;align-items:center}
.adv-grid .opt{display:inline-flex;gap:7px;align-items:center;font-size:12.5px;color:var(--muted)}
.adv-grid .opt b{color:var(--foreground);font-weight:600;min-width:20px}
.fside{display:flex;flex-direction:column;gap:6px;align-items:stretch}
.proc-wrap{display:flex;flex-direction:column;gap:6px;align-items:stretch}
.prog-label{font-size:12px;font-weight:500;max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.prog-meta{display:flex;align-items:center;gap:8px}
.progress-track{flex:1;height:6px;border-radius:99px;background:var(--muted-bg);border:1px solid var(--border);overflow:hidden}
.progress-fill{height:100%;width:0%;background:var(--primary);border-radius:99px;transition:width .15s ease}
.progress-fill.indet{width:35%!important;animation:indet 1.1s ease-in-out infinite}
@keyframes indet{0%{margin-left:-35%}100%{margin-left:100%}}
.prog-pct{font-size:11.5px;color:var(--muted);min-width:34px;text-align:right;font-variant-numeric:tabular-nums}

/* empty */
.empty{text-align:center;border:1px solid var(--border);border-radius:10px;background:var(--surface);padding:34px 16px;color:var(--muted)}
.empty-icon{width:40px;height:40px;margin:0 auto 10px;border-radius:10px;background:var(--muted-bg);display:flex;align-items:center;justify-content:center}
.empty-icon svg{width:20px;height:20px}

/* bottom action bar (fixed) — every control is 30px, one visual language */
.actionbar{position:fixed;bottom:0;left:0;right:0;z-index:30;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-top:1px solid var(--border)}
.actionbar-inner{display:flex;align-items:center;gap:8px;padding:8px 16px;flex-wrap:wrap}
.actionbar .btn-sm{height:30px}
/* joined download control: primary button + segmented scope, same height */
.split{display:flex;align-items:stretch;gap:8px}
.split .btn-default{border-radius:6px;height:30px}
.seg{display:flex;align-items:center;gap:2px;background:var(--secondary);border:1px solid var(--border);border-radius:6px;padding:2px;height:30px}
.seg-btn{font:inherit;font-size:12.5px;font-weight:500;height:24px;padding:0 12px;border:none;border-radius:4px;background:transparent;color:var(--muted);cursor:pointer;white-space:nowrap}
.seg-btn:hover{color:var(--foreground)}
.seg-btn.is-active{background:var(--surface);color:var(--foreground);box-shadow:var(--shadow);outline:1px solid var(--border)}
.hint{font-size:12.5px;color:var(--muted);margin:12px 0 40px}

/* dialog */
.dialog-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:50;padding:14px}
.hidden{display:none!important}
.dialog{background:var(--surface);border-radius:12px;border:1px solid var(--border);width:100%;max-width:720px;max-height:92vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;padding:14px 16px;border-bottom:1px solid var(--border)}
.editor-tools{display:flex;gap:7px;padding:10px 16px;border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center}
.field-inline{display:inline-flex;gap:7px;align-items:center;font-size:12.5px;color:var(--muted)}
.editor-stage{position:relative;background:#09090b;display:flex;justify-content:center;align-items:center;min-height:280px;max-height:56vh;overflow:hidden}
#editorCanvas{max-width:100%;max-height:56vh;display:block}
.cropbox{position:absolute;border:1.5px solid #fff;box-shadow:0 0 0 9999px rgba(0,0,0,.5);cursor:move;touch-action:none;border-radius:2px}
.hd{position:absolute;width:12px;height:12px;background:#fff;border-radius:3px}
.tl{top:-6px;left:-6px;cursor:nwse-resize}.tr{top:-6px;right:-6px;cursor:nesw-resize}.bl{bottom:-6px;left:-6px;cursor:nesw-resize}.br{bottom:-6px;right:-6px;cursor:nwse-resize}
.hd.t{top:-6px;left:50%;margin-left:-6px;cursor:ns-resize}.hd.b{bottom:-6px;left:50%;margin-left:-6px;cursor:ns-resize}
.hd.l{left:-6px;top:50%;margin-top:-6px;cursor:ew-resize}.hd.r{right:-6px;top:50%;margin-top:-6px;cursor:ew-resize}
.rot-handle{position:absolute;top:-34px;left:50%;margin-left:-9px;width:18px;height:18px;border-radius:99px;background:#fff;color:#111;font-size:12px;line-height:18px;text-align:center;box-shadow:0 1px 5px rgba(0,0,0,.5);cursor:grab;touch-action:none;user-select:none}
.rot-handle::before{content:"";position:absolute;top:18px;left:50%;width:2px;height:14px;margin-left:-1px;background:rgba(255,255,255,.9)}
.rot-handle:active{cursor:grabbing}
.dialog-actions{display:flex;gap:4px;align-items:center}
.dialog.expanded{max-width:1100px;width:calc(100vw - 28px);height:calc(100vh - 28px);max-height:none}
.dialog.expanded .editor-stage{max-height:none;flex:1;min-height:0}
.dialog.expanded #editorCanvas{max-height:calc(100vh - 250px)}
.dialog-foot{display:flex;align-items:center;padding:12px 16px;gap:8px}

/* lightbox */
.lightbox-dialog{max-width:860px}
.lightbox-stage{background:#09090b;display:flex;justify-content:center;align-items:center;min-height:200px;max-height:62vh;overflow:auto;padding:12px}
.lightbox-stage img{max-width:100%;max-height:60vh;object-fit:contain;border-radius:6px}

/* toast */
.toast{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:var(--primary);color:var(--primary-fg);padding:9px 14px;border-radius:8px;font-size:13px;z-index:99;box-shadow:0 8px 24px rgba(0,0,0,.25);max-width:min(92vw,480px)}

/* spin */
.spin svg{animation:rot 1s linear infinite}@keyframes rot{to{transform:rotate(360deg)}}

/* ---- responsive ---- */
@media(max-width:720px){
  .container{padding:0 12px}
  .hero{padding:44px 18px;margin-top:16px}
  .header-inner{padding:10px 12px}
  .brand .sub{display:none}
  .fcard{grid-template-columns:auto 36px 1fr;padding:8px;gap:8px}
  .fgrid{grid-template-columns:1fr 1fr}
  .fside{grid-column:1/-1;flex-direction:row}
  .fside .btn{flex:1}
  .actionbar-inner{padding:8px 12px}
  .seg{order:5;flex:1 1 100%;overflow-x:auto}
  .seg-btn{flex:1 0 auto;padding:0 12px}
  /* help popover becomes a bottom sheet on mobile — never clipped */
  .help-pop{position:fixed;left:12px;right:12px;top:auto;bottom:12px;min-width:0;max-width:none;z-index:5}
}
@media(min-width:721px){ .fside .btn{min-width:96px} }