:root {
  --bg:#2a2a2a;--bg2:#323232;--bg3:#3c3c3c;--bg4:#464646;
  --border:#505050;--border2:#686868;--text:#f0f0f0;--text2:#c0c0c0;--text3:#848484;
  --accent:#1c1c1c;--green:#4db880;--green-dim:#2d6b48;--green-bg:#182e22;
  --blue:#5b9bd5;--blue-bg:#182438;--red:#cc5555;--red-bg:#2e1818;--yellow:#d4a84a;
  --mono:'DM Mono',monospace;--sans:'Syne',sans-serif;--r:6px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:var(--sans);background:var(--bg);color:var(--text);min-height:100vh;line-height:1.5;}
::-webkit-scrollbar{width:6px;height:6px;}
::-webkit-scrollbar-track{background:var(--bg2);}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px;}

/* ── Header ── */
header{background:var(--accent);border-bottom:1px solid var(--border);padding:0 1.75rem;
  height:56px;display:flex;align-items:center;gap:1rem;position:sticky;top:0;z-index:200;
  box-shadow:0 2px 14px rgba(0,0,0,.55);}
.logo-block{display:flex;align-items:center;gap:0.6rem;flex-shrink:0;}
.logo-icon{width:24px;height:24px;border-radius:3px;display:grid;grid-template-columns:repeat(4,1fr);
  grid-template-rows:repeat(4,1fr);overflow:hidden;flex-shrink:0;}
.logo-icon span{display:block;}
.logo-icon span:nth-child(1){background:#5b9e3f;}.logo-icon span:nth-child(2){background:#7ab84f;}
.logo-icon span:nth-child(3){background:#5b9e3f;}.logo-icon span:nth-child(4){background:#7ab84f;}
.logo-icon span:nth-child(5){background:#7ab84f;}.logo-icon span:nth-child(6){background:#5b9e3f;}
.logo-icon span:nth-child(7){background:#7ab84f;}.logo-icon span:nth-child(8){background:#5b9e3f;}
.logo-icon span:nth-child(9){background:#7b5a1a;}.logo-icon span:nth-child(10){background:#9a7020;}
.logo-icon span:nth-child(11){background:#7b5a1a;}.logo-icon span:nth-child(12){background:#9a7020;}
.logo-icon span:nth-child(13){background:#9a7020;}.logo-icon span:nth-child(14){background:#7b5a1a;}
.logo-icon span:nth-child(15){background:#9a7020;}.logo-icon span:nth-child(16){background:#7b5a1a;}
header h1{font-size:0.9rem;font-weight:700;letter-spacing:0.06em;color:var(--text);}
.header-right{margin-left:auto;display:flex;align-items:center;gap:0.5rem;flex-shrink:0;}

/* ── Mode tabs ── */
.mode-tabs{display:flex;gap:0;border:1px solid var(--border);border-radius:var(--r);overflow:hidden;flex-shrink:0;}
.mode-tab{padding:0.28rem 1rem;font-family:var(--sans);font-size:0.72rem;font-weight:700;
  letter-spacing:0.06em;text-transform:uppercase;border:none;cursor:pointer;
  transition:background .15s,color .15s;background:var(--bg3);color:var(--text3);}
.mode-tab+.mode-tab{border-left:1px solid var(--border);}
.mode-tab.active{background:var(--border2);color:var(--text);}
.mode-tab:hover:not(.active){background:var(--bg4);color:var(--text2);}

/* ── Layout ── */
main{max-width:1140px;margin:0 auto;padding:1.5rem 1.25rem 4rem;display:grid;gap:1rem;}

/* ── Card ── */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;}
.card-header{padding:0.7rem 1.2rem;border-bottom:1px solid var(--border);display:flex;align-items:center;
  gap:0.55rem;background:var(--bg3);flex-wrap:wrap;}
.step-num{width:20px;height:20px;background:var(--border2);color:var(--text);border-radius:50%;
  font-size:0.62rem;font-weight:700;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;font-family:var(--mono);}
.card-header h2{font-size:0.75rem;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--text2);}
.ml-auto{margin-left:auto;}
.badge{font-family:var(--mono);font-size:0.6rem;padding:2px 8px;border-radius:99px;font-weight:500;}
.badge-dark{background:var(--bg4);color:var(--text2);border:1px solid var(--border);}
.card-body{padding:1.2rem;}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:0.4rem;border:none;border-radius:5px;padding:0.5rem 1.1rem;
  font-family:var(--sans);font-size:0.74rem;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;
  cursor:pointer;transition:opacity .15s,background .12s,transform .1s;text-decoration:none;white-space:nowrap;}
.btn:active{transform:scale(0.97);}
.btn:disabled{opacity:0.35;cursor:not-allowed;pointer-events:none;}
.btn-dark{background:var(--bg4);color:var(--text);border:1px solid var(--border2);}
.btn-dark:hover:not(:disabled){background:var(--border);}
.btn-green{background:var(--green-dim);color:#d0fde8;border:1px solid var(--green);}
.btn-green:hover{opacity:0.85;}
.btn-red{background:var(--red-bg);color:#ffaaaa;border:1px solid var(--red);}
.btn-red:hover{background:#3a1c1c;}
.btn-lang{min-width:2.4rem;justify-content:center;font-family:var(--mono);font-size:0.7rem;}

/* ── Resolution selector ── */
.res-section{display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap;}
.res-label{font-size:0.73rem;font-weight:600;color:var(--text2);white-space:nowrap;}
.res-grid{display:flex;flex-wrap:wrap;gap:4px;}
.res-btn{font-family:var(--mono);font-size:0.64rem;padding:4px 10px;border-radius:4px;cursor:pointer;
  background:var(--bg4);color:var(--text3);border:1px solid var(--border);transition:all .12s;user-select:none;}
.res-btn:hover{border-color:var(--border2);color:var(--text2);}
.res-btn.active{background:var(--border2);color:var(--text);border-color:var(--border2);font-weight:700;}
.res-info{font-family:var(--mono);font-size:0.6rem;color:var(--text3);}

/* ── Upload / Drop zones ── */
.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.col-label{font-size:0.68rem;font-weight:700;color:var(--text2);letter-spacing:0.05em;
  text-transform:uppercase;margin-bottom:0.4rem;display:flex;align-items:center;gap:0.35rem;}
.tag{font-size:0.57rem;background:var(--bg4);border:1px solid var(--border);border-radius:3px;
  padding:1px 5px;color:var(--text3);font-family:var(--mono);font-weight:400;text-transform:none;}
.tag.req{background:#3a2600;border-color:#7a5200;color:#dfa040;}
.tag.opt{background:var(--bg3);border-color:var(--border2);color:var(--text3);}

.drop-zone{border:1.5px dashed var(--border2);border-radius:var(--r);padding:1.3rem 1rem;
  text-align:center;cursor:pointer;transition:border-color .15s,background .15s;position:relative;
  min-height:115px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:0.38rem;background:var(--bg3);}
.drop-zone:hover,.drop-zone.over{border-color:var(--text3);background:var(--bg4);}
.drop-zone input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;}
.drop-icon{font-size:1.6rem;line-height:1;opacity:.35;}
.drop-label{font-size:0.73rem;font-weight:600;color:var(--text2);}
.drop-sub{font-size:0.63rem;color:var(--text3);font-family:var(--mono);}
.drop-zone.has-file{border-style:solid;border-color:var(--green-dim);background:var(--green-bg);}
.drop-zone.has-file .drop-label{color:var(--green);}
.drop-zone.has-file .drop-icon{opacity:1;}
.drop-zone.tmpl{border-style:solid;border-color:var(--border);background:var(--bg3);}
.drop-zone.tmpl .drop-label{color:var(--text3);}
.file-hint{font-family:var(--mono);font-size:0.61rem;color:var(--green);word-break:break-all;max-width:100%;padding:0 0.5rem;text-align:center;}

/* ── Notice ── */
.notice{font-size:0.67rem;padding:0.55rem 0.85rem;background:var(--bg3);border-radius:5px;
  border-left:2.5px solid var(--border2);font-family:var(--mono);line-height:1.7;color:var(--text3);}
.notice.blue{border-color:var(--blue);color:#88bade;background:var(--blue-bg);}
.notice code{background:rgba(255,255,255,.08);border-radius:3px;padding:1px 4px;font-size:0.95em;}

/* ── Mapping table ── */
.table-wrap{max-height:210px;overflow-y:auto;border:1px solid var(--border);border-radius:5px;}
table.ft{width:100%;border-collapse:collapse;font-size:0.66rem;font-family:var(--mono);}
table.ft th{position:sticky;top:0;background:var(--bg3);padding:5px 10px;text-align:left;
  color:var(--text3);font-weight:500;letter-spacing:0.05em;border-bottom:1px solid var(--border);
  text-transform:uppercase;font-size:0.59rem;}
table.ft td{padding:4px 10px;border-bottom:1px solid var(--border);color:var(--text3);vertical-align:middle;}
table.ft tr:last-child td{border-bottom:none;}
table.ft tr.ok td{color:var(--text2);}
.mdot{display:inline-block;width:5px;height:5px;border-radius:50%;margin-right:4px;vertical-align:middle;}
.cg{background:var(--green);}.cd{background:var(--border2);}

/* ── Stats / Actions ── */
.stats{display:flex;gap:1rem;font-family:var(--mono);font-size:0.67rem;flex-wrap:wrap;align-items:center;}
.stats span{color:var(--text3);}.stats strong{color:var(--text);}
.action-row{display:flex;gap:0.6rem;align-items:center;flex-wrap:wrap;}
.dl-group{display:flex;gap:0.5rem;flex-wrap:wrap;}

/* ── Progress ── */
.prog-wrap{height:2px;background:var(--bg4);border-radius:99px;overflow:hidden;margin-top:0.75rem;display:none;}
.prog-bar{height:100%;background:var(--green);border-radius:99px;transition:width .06s;width:0%;}

/* ── Log box ── */
.log-box{font-family:var(--mono);font-size:0.62rem;background:#141414;color:#aaa;border-radius:5px;
  border:1px solid var(--border);padding:0.65rem;max-height:130px;overflow-y:auto;line-height:1.8;display:none;}
.l-ok{color:#6ecf8a;}.l-skip{color:#606060;}.l-info{color:#6fa8d8;}.l-warn{color:#d4a84a;}

/* ── Help text ── */
.help-text{font-size:0.67rem;color:var(--text3);font-family:var(--mono);line-height:1.85;}
.help-text code{background:var(--bg3);border:1px solid var(--border);border-radius:3px;padding:1px 5px;color:var(--text2);}
hr.divider{border:none;border-top:1px solid var(--border);margin:0.75rem 0;}

/* ── Mode panels ── */
.mode-panel{display:none;}
.mode-panel.active{display:contents;}

/* ── GUI Converter ── */
.gui-browser{display:grid;grid-template-columns:260px 1fr;height:520px;}
.gui-tree-panel{border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;}
.gui-right-panel{display:flex;flex-direction:column;overflow:hidden;min-width:0;}
.gui-fui-panel,.gui-txt-panel{display:flex;flex-direction:column;overflow:hidden;flex:1;}
.gui-panel-header{padding:0.35rem 0.75rem;font-size:0.63rem;font-weight:700;letter-spacing:0.06em;
  text-transform:uppercase;color:var(--text3);background:var(--bg3);border-bottom:1px solid var(--border);
  font-family:var(--mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.gui-tree-scroll{overflow-y:auto;flex:1;padding:0.3rem 0;}
.gui-tree-list{list-style:none;margin:0;padding:0 0 0 0.75rem;}
.gui-tree-list:first-child{padding-left:0.3rem;}
.gui-tree-folder,.gui-tree-file{display:block;padding:0.18rem 0.55rem;font-size:0.64rem;
  font-family:var(--mono);cursor:pointer;color:var(--text2);white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;border-radius:3px;user-select:none;}
.gui-tree-folder:hover,.gui-tree-file:hover{background:var(--bg4);color:var(--text);}
.gui-tree-file.gui-active{background:var(--border2);color:var(--text);}
.gui-tree-arrow{font-size:0.48rem;display:inline-block;width:0.75rem;color:var(--text3);}

/* FUI image grid */
.fui-image-grid{display:flex;flex-wrap:wrap;gap:0.45rem;padding:0.75rem;
  overflow-y:auto;flex:1;align-content:flex-start;min-height:100px;}
.fui-img-item{width:90px;background:var(--bg3);border:1.5px solid var(--border);border-radius:4px;
  overflow:hidden;cursor:pointer;transition:border-color .12s;display:flex;flex-direction:column;flex-shrink:0;}
.fui-img-item:hover{border-color:var(--border2);}
.fui-img-item.gui-selected{border-color:var(--green);background:var(--green-bg);}
.fui-img-item img{width:90px;height:72px;object-fit:contain;
  background:repeating-conic-gradient(#333 0% 25%,#222 0% 50%) 0 0 / 12px 12px;
  image-rendering:pixelated;display:block;}
.fui-img-label{font-family:var(--mono);font-size:0.54rem;color:var(--text3);
  padding:2px 4px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.gui-actions{display:flex;align-items:center;gap:0.5rem;padding:0.55rem 0.75rem;
  border-top:1px solid var(--border);background:var(--bg3);flex-wrap:wrap;}
.gui-img-info{font-family:var(--mono);font-size:0.59rem;color:var(--text3);margin-right:auto;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px;}

/* TXT editor */
.gui-txt-editor{flex:1;resize:none;background:var(--bg);color:var(--text);border:none;
  padding:0.75rem;font-family:var(--mono);font-size:0.68rem;line-height:1.65;outline:none;
  min-height:200px;tab-size:2;}

/* Color swap toggle */
.gui-swap-label{display:flex;align-items:center;gap:0.3rem;font-family:var(--mono);
  font-size:0.62rem;color:var(--text2);cursor:pointer;user-select:none;white-space:nowrap;}
.gui-swap-label input{accent-color:var(--green);}


/* ═══ RESPONSIVE ═══════════════════════════════════════════════════════════ */

/* Medium screens: tighten header */
@media(max-width:860px){
  header{padding:0 1rem;gap:0.5rem;}
  header h1{font-size:0.75rem;}
  .mode-tab{padding:0.28rem 0.65rem;font-size:0.67rem;}
  .btn-red{display:none;}/* hide reset label, keep only icon via JS or abbreviate */
}

/* Tablet */
@media(max-width:720px){
  header{height:auto;padding:0.5rem 1rem;flex-wrap:wrap;gap:0.4rem;}
  .logo-block{flex:0 0 auto;}
  .header-right{margin-left:auto;gap:0.4rem;}
  .mode-tabs{border-radius:5px;}
  .mode-tab{padding:0.25rem 0.55rem;font-size:0.62rem;letter-spacing:0.03em;}
  main{padding:1rem 0.75rem 3rem;}
  .upload-grid{grid-template-columns:1fr;}
  .card-body{padding:0.9rem;}
  .res-section{gap:0.5rem;}
  .res-label{font-size:0.68rem;}
  .action-row{gap:0.4rem;}
  .dl-group{gap:0.35rem;}
}

/* Mobile */
@media(max-width:520px){
  header{padding:0.4rem 0.75rem;gap:0.35rem;}
  header h1{display:none;}/* hide title on tiny screens, icon stays */
  .header-right{gap:0.3rem;}
  .mode-tab{padding:0.22rem 0.45rem;font-size:0.58rem;}
  .btn{padding:0.42rem 0.75rem;font-size:0.68rem;}
  .btn-red{padding:0.42rem 0.6rem;}
  main{padding:0.75rem 0.6rem 3rem;gap:0.75rem;}
  .card-header{padding:0.6rem 0.9rem;}
  .card-body{padding:0.75rem;}
  .table-wrap{max-height:160px;}
  table.ft th,table.ft td{padding:4px 6px;font-size:0.58rem;}
  .stats{gap:0.5rem;font-size:0.6rem;}
  .fui-image-grid{gap:0.35rem;padding:0.5rem;}
  .fui-img-item{width:76px;}
  .fui-img-item img{width:76px;height:60px;}
  .gui-actions{flex-wrap:wrap;gap:0.35rem;}
  .gui-img-info{max-width:100%;width:100%;}
  .drop-zone{padding:1rem 0.75rem;min-height:95px;}
  .drop-label{font-size:0.67rem;}
  .drop-sub{font-size:0.59rem;}
}

/* GUI browser responsive */
@media(max-width:640px){
  .gui-browser{grid-template-columns:1fr;}
  .gui-tree-panel{border-right:none;border-bottom:1px solid var(--border);max-height:180px;}
}

/* Extra-small: stack action rows fully */
@media(max-width:380px){
  .mode-tabs{display:grid;grid-template-columns:repeat(3,1fr);}
  .mode-tab+.mode-tab{border-left:1px solid var(--border);}
  .action-row{flex-direction:column;align-items:stretch;}
  .action-row .btn,.action-row a{justify-content:center;}
  .dl-group{flex-direction:column;}
  .dl-group .btn{justify-content:center;}
}

/* ═══ MODAL ═══════════════════════════════════════════════════════════════ */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(4px);
  z-index:900;display:none;align-items:center;justify-content:center;padding:1rem;
}
.modal-overlay.open{display:flex;}
.modal-card{
  background:var(--bg2);border:1px solid var(--border2);border-radius:10px;
  width:100%;max-width:560px;max-height:90vh;overflow-y:auto;
  display:flex;flex-direction:column;box-shadow:0 24px 64px rgba(0,0,0,.7);
}
.modal-hdr{
  padding:0.85rem 1.2rem;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:0.5rem;background:var(--bg3);
  border-radius:10px 10px 0 0;position:sticky;top:0;
}
.modal-title{font-size:0.78rem;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;flex:1;}
.modal-close-btn{
  background:none;border:none;color:var(--text3);font-size:1.2rem;cursor:pointer;
  line-height:1;padding:2px 6px;border-radius:4px;transition:color .12s,background .12s;
}
.modal-close-btn:hover{color:var(--text);background:var(--bg4);}
.modal-body{padding:1.2rem;display:flex;flex-direction:column;gap:0.9rem;flex:1;}
.modal-pack-name{
  font-family:var(--mono);font-size:0.72rem;color:var(--text2);
  background:var(--bg3);border:1px solid var(--border);border-radius:5px;
  padding:0.45rem 0.75rem;word-break:break-all;
}
.modal-stats{display:flex;flex-direction:column;gap:0.3rem;}
.modal-stat-row{font-family:var(--mono);font-size:0.67rem;color:var(--text3);}
.modal-stat-row strong{color:var(--green);}
.modal-sep{border:none;border-top:1px solid var(--border);margin:0.1rem 0;}
.modal-det-res{font-family:var(--mono);font-size:0.61rem;color:var(--text3);}
.modal-det-res.mismatch{color:var(--yellow);font-weight:600;}
.modal-sec-lbl{
  font-size:0.68rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;
  color:var(--text2);display:flex;align-items:center;gap:0.4rem;
}
.modal-ftr{
  padding:0.85rem 1.2rem;border-top:1px solid var(--border);background:var(--bg3);
  display:flex;gap:0.6rem;justify-content:flex-end;align-items:center;
  border-radius:0 0 10px 10px;position:sticky;bottom:0;
}

/* ── Pack GUI crop grid ── */
.pack-gui-crops-grid{
  display:flex;flex-wrap:wrap;gap:0.55rem;
  padding:0.75rem;background:var(--bg3);border:1px solid var(--border);
  border-radius:var(--r);
}
.pack-gui-crop-item{
  display:flex;flex-direction:column;align-items:center;gap:0.25rem;
  padding:0.45rem 0.55rem;background:var(--bg);border:1px solid var(--border);
  border-radius:4px;min-width:60px;cursor:default;
  transition:border-color .15s;
}
.pack-gui-crop-item.wide{min-width:0;width:100%;flex-direction:row;flex-wrap:wrap;justify-content:flex-start;gap:0.4rem;}
.pack-gui-crop-item.wide .pack-gui-crop-label{max-width:none;text-align:left;}
.pack-gui-crop-item.has-mapping{border-color:var(--green-dim);}
.pack-gui-crop-preview{
  display:flex;align-items:center;justify-content:center;
  min-width:40px;min-height:40px;background:#000;border-radius:2px;overflow:hidden;
}
.pack-gui-crop-preview img{display:block;image-rendering:pixelated;}
.pack-gui-crop-label{
  font-family:var(--mono);font-size:0.55rem;color:var(--text2);
  text-align:center;line-height:1.2;max-width:100px;word-break:break-word;
}
.pack-gui-crop-info{
  font-family:var(--mono);font-size:0.52rem;color:var(--text3);text-align:center;
}

/* Responsive modal */
@media(max-width:600px){
  .modal-card{max-height:95vh;}
  .modal-body{padding:0.9rem;gap:0.75rem;}
  .upload-grid{grid-template-columns:1fr;}
}
/* Mobile: mode-tabs 2 columns */
@media(max-width:380px){
  .mode-tabs{display:grid;grid-template-columns:repeat(2,1fr);}
}