:root{
  --bench:#e9e7e0;
  --panel:#ffffff;
  --ink:#23262b;
  --muted:#6b6f76;
  --line:#dcd9d1;
  --accent:#3b5bdb;
  --accent-soft:#e7ecfb;
  --radius:12px;
  --chrome-font:"Inter","Segoe UI",-apple-system,system-ui,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;}
html{
  margin:0;padding:0;
  overflow-x:clip; /* clip never creates a scroll container, so sticky still works */
}
body{
  margin:0;padding:0;
  width:100%;max-width:100vw;
  overflow-x:hidden;
}
body{
  font-family:var(--chrome-font);
  color:var(--ink);
  background:var(--bench);
  -webkit-font-smoothing:antialiased;
}

/* ---------- App chrome ---------- */
header.topbar{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 22px;
  background:var(--panel);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30;
}
.brand{display:flex;align-items:baseline;gap:10px; min-width: 0;}
.brand h1{font-size:17px;font-weight:650;letter-spacing:-.01em;margin:0; white-space: nowrap;}
.brand .tag{font-size:12px;color:var(--muted);letter-spacing:.02em; white-space: nowrap;}
.btn{
  font:inherit;font-size:13px;font-weight:550;
  border:1px solid var(--line);background:var(--panel);color:var(--ink);
  padding:9px 14px;border-radius:9px;cursor:pointer;
  transition:background .15s,border-color .15s,transform .05s;
  white-space: nowrap;
}
.btn:hover{background:#f6f5f1;}
.btn:active{transform:translateY(1px);}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn.primary:hover{background:#3450c4;}
.btn:focus-visible,.swatch:focus-visible,input:focus-visible,textarea:focus-visible,.seg button:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.layout{
  display:flex;align-items:flex-start;gap:0;
  width: 100%;
  max-width: 100vw;
}

/* ---------- Controls ---------- */
.controls{
  width:330px;flex:0 0 330px;
  background:var(--panel);
  border-right:1px solid var(--line);
  height:calc(100vh - 57px);
  overflow-y:auto;
  overflow-x:hidden;
  padding:0 0 60px;
}

/* Tabs */
.tabs{
  display:flex;
  position:sticky;top:0;z-index:10;
  background:var(--panel);
  border-bottom:1px solid var(--line);
  padding:0 4px;
}
.tab{
  flex:1;
  font:inherit;font-size:13px;font-weight:550;
  color:var(--muted);
  background:none;border:none;
  border-bottom:2px solid transparent;
  padding:12px 6px;
  cursor:pointer;
  transition:color .15s,border-color .15s;
  margin-bottom:-1px;
}
.tab:hover{color:var(--ink);}
.tab.active{color:var(--accent);border-bottom-color:var(--accent);}
.tab-panel{display:none;padding:20px 20px 0;}
.tab-panel.active{display:block;}
.group{margin-bottom:24px; width: 100%;}
.group > .lbl{
  display:block;font-size:11px;font-weight:650;text-transform:uppercase;
  letter-spacing:.09em;color:var(--muted);margin-bottom:10px;
}
.seg{display:flex;background:#f1efe9;border:1px solid var(--line);border-radius:9px;padding:3px;gap:3px; width:100%;}
.seg button{
  flex:1; min-width: 0;
  font:inherit;font-size:12.5px;font-weight:550;color:var(--muted);
  border:0;background:transparent;padding:7px 5px;border-radius:6px;cursor:pointer;line-height:1.15;
}
.seg button[aria-pressed="true"]{background:var(--panel);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08);}

.swatches{display:grid;grid-template-columns:repeat(3,1fr);gap:8px; width:100%;}
.swatch{
  border:2px solid transparent;border-radius:10px;padding:0;cursor:pointer;
  background:none;text-align:center;
}
.swatch .chip{
  height:46px;border-radius:8px;border:1px solid rgba(0,0,0,.12);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.swatch .chip span{font-size:18px;font-weight:700;}
.swatch .nm{display:block;font-size:11px;color:var(--muted);margin-top:5px;}
.swatch[aria-pressed="true"]{border-color:var(--accent);}
.swatch[aria-pressed="true"] .nm{color:var(--ink);font-weight:600;}

.presets{display:flex;flex-wrap:wrap;gap:7px;}
.preset{
  font:inherit;font-size:12px;font-weight:540;
  border:1px solid var(--line);background:var(--panel);color:var(--ink);
  padding:6px 11px;border-radius:999px;cursor:pointer;
}
.preset:hover{background:var(--accent-soft);border-color:var(--accent);}

.field{margin-bottom:13px; width: 100%;}
.field label{display:block;font-size:12px;font-weight:550;margin-bottom:5px;}
.field input,.field textarea{
  width:100%; max-width: 100%; font:inherit;font-size:13px;color:var(--ink);
  border:1px solid var(--line);border-radius:8px;padding:9px 11px;background:#fcfbf8;
  resize:vertical;
}
.field textarea{min-height:70px;line-height:1.45;}
.field .hint{font-size:11px;color:var(--muted);margin-top:4px;}

.opt{display:flex;align-items:flex-start;gap:9px;margin-bottom:11px;font-size:13px;line-height:1.4; width: 100%;}
.opt input{margin-top:2px;width:15px;height:15px;accent-color:var(--accent); flex-shrink: 0;}
.opt > span { flex: 1; min-width: 0; }
.opt .sub{display:block;font-size:11px;color:var(--muted);}

input[type=range]{width:100%;accent-color:var(--accent);cursor:pointer;margin-top:3px;display:block;}
.field label .slider-val{font-weight:400;color:var(--muted);margin-left:4px;}

.colorrow{display:flex;gap:14px 18px;align-items:center;flex-wrap:wrap;}
.colorrow .ci{display:flex;align-items:center;gap:7px;font-size:12px;}
.colorrow input[type=color]{width:30px;height:30px;border:1px solid var(--line);border-radius:7px;padding:0;background:none;cursor:pointer;}
.reset-link{background:none;border:0;color:var(--accent);font:inherit;font-size:12px;cursor:pointer;padding:0;text-decoration:underline;}

.note{
  font-size:12px;line-height:1.5;color:var(--muted);
  background:#f6f5f1;border:1px solid var(--line);border-radius:9px;padding:11px 13px;
  width: 100%;
}
.note b{color:var(--ink);font-weight:600;}

/* ---------- Preview / workbench ---------- */
.previewOuter{
  flex:1;min-width:0;
  height:calc(100vh - 57px);
}
.previewWrap{
  width:100%;height:100%;
  overflow-y:auto; overflow-x:hidden;
  padding:34px;
  display:flex;flex-direction:column;align-items:center;gap:26px;
  background: radial-gradient(circle at 50% 0,#f2f0ea,transparent 60%), var(--bench);
}
.sheetHolder{
  position:relative;
  margin: 0 auto 10px;
}
.sheetLabel{
  position:absolute;top:-26px;left:50%;transform:translateX(-50%);
  font-size:11px;font-weight:600;
  letter-spacing:.05em;text-transform:uppercase;color:var(--muted);
  white-space:nowrap;
}
.sheet{
  position:absolute; top:0; left:0; 
  background:#fff;overflow:hidden;
  transform-origin:top left;
  box-shadow:0 10px 30px rgba(0,0,0,.16),0 2px 6px rgba(0,0,0,.08);
  -webkit-print-color-adjust:exact;print-color-adjust:exact;
  color:var(--c-ink,#222);
}
.sheet.folded{width:11in;height:8.5in;}
.sheet.flat{width:8.5in;height:11in;}
.sheet.quarter{width:8.5in;height:11in;}

.face.inside-l{background:#fff;}
.face.inside-r{background:#fff;justify-content:flex-start;padding-top:1in;}
.face.inside-r .content{gap:.25in;}

/* fold + cut guides (screen + optional print) */
.guide{position:absolute;pointer-events:none;z-index:6;}
.guide.v{top:0;bottom:0;border-left:1.5px dashed rgba(0,0,0,.28);}
.guide.h{left:0;right:0;border-top:1.5px dashed rgba(0,0,0,.28);}
.guide.hide{display:none;}
.guide .gtxt{
  position:absolute;top:50%;left:6px;transform:translateY(-50%) rotate(0);
  font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:rgba(0,0,0,.35);
  font-family:var(--chrome-font);background:rgba(255,255,255,.6);padding:1px 4px;border-radius:3px;
}

/* panels inside a folded sheet */
.panel{position:absolute;top:0;bottom:0;display:flex;}
.panel.left{left:0;right:50%;}
.panel.right{left:50%;right:0;}

/* the actual designed card face */
.face{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:var(--c-items,center);justify-content:center;
  text-align:var(--c-align,center);padding:0.55in 0.5in;
  background:var(--c-bg,#fff);
}
.face .deco{position:absolute;inset:0;z-index:0;pointer-events:none;}
.face .content{position:relative;z-index:2;max-width:100%;display:flex;flex-direction:column;align-items:var(--c-items,center);gap:.18in;}

.ttl{
  font-family:var(--c-titleFont);
  font-weight:var(--c-titleWeight,700);
  font-size:var(--c-titleSize,40px);
  line-height:1.04;letter-spacing:var(--c-titleLS,-.01em);
  color:var(--c-accent,#333);
  margin:0;text-transform:var(--c-titleCase,none);
  word-break:break-word;
}
.sub{
  font-family:var(--c-bodyFont);
  font-size:var(--c-subSize,16px);font-weight:var(--c-subWeight,400);
  line-height:1.4;color:var(--c-ink,#444);margin:0;
  letter-spacing:var(--c-subLS,0);font-style:var(--c-subStyle,normal);
  text-transform:var(--c-subCase,none);
}
.msg{
  font-family:var(--c-bodyFont);
  font-size:var(--c-msgSize,15px);line-height:1.55;color:var(--c-ink,#444);
  margin:0;white-space:pre-wrap;
}
.backmark{
  position:absolute;left:0;right:0;bottom:.45in;text-align:center;z-index:2;
  font-family:var(--c-bodyFont);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--c-ink,#888);opacity:.55;
}

/* logo */
.logo-back{
  position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);
  z-index:2;display:flex;flex-direction:column;align-items:center;gap:.18in;padding:0 .5in;
}
.logo-back img{width:2in;max-width:62%;height:auto;}
.logo-sm{position:relative;z-index:2;margin-top:.12in;}
.logo-sm img{width:1in;height:auto;}

.grid4 .cell .logo-sm img{width:.85in;}

/* flat 4-up grid */
.grid4{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;}
.grid4 .cell{position:relative;overflow:hidden;}
.grid4 .cell .face{padding:.4in .35in;}
.grid4 .cell .ttl{font-size:calc(var(--c-titleSize,40px) * .62);}
.grid4 .cell .sub{font-size:calc(var(--c-subSize,16px) * .9);}
.grid4 .cell .msg{font-size:calc(var(--c-msgSize,15px) * .92);margin-top:.12in;}

/* quarter-fold: 4 panels on a portrait sheet, top row prints upside-down */
.qgrid{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;}
.qcell{position:relative;overflow:hidden;}
.qcell.rot .face{transform:rotate(180deg);}

.qgrid .ttl{font-size:calc(var(--c-titleSize,40px) * .6);}
.qgrid .sub{font-size:calc(var(--c-subSize,16px) * .88);}
.qgrid .msg{font-size:calc(var(--c-msgSize,15px) * .95);}
.qgrid .face{padding:.4in .35in;}
.qgrid .face.inside-r{padding-top:.55in;}
.qgrid .logo-back img{width:1.4in;max-width:70%;}

/* screen-only quadrant labels */
.qlabels{position:absolute;inset:0;z-index:7;display:grid;
grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;pointer-events:none;}
.qlabels span{align-self:start;justify-self:center;margin-top:8px;
font-family:var(--chrome-font);font-size:10px;font-weight:600;letter-spacing:.03em;
background:rgba(20,22,28,.72);color:#fff;padding:3px 8px;border-radius:999px;}

/* ---------- Mobile overrides ---------- */
@media (max-width:960px){
  header.topbar{ padding:12px 16px; }
  .brand h1{ font-size:16px; }
  .brand .tag{ display:none; }

  /* Layout fills exactly the space below the header — body never scrolls */
  .layout{
    flex-direction:column;
    height:calc(100vh - 49px);
    overflow:hidden;
  }

  /* Preview: fixed slice at the top of the layout column */
  .previewOuter{
    order:-1;
    position:static; /* no sticky needed — body doesn't scroll */
    flex:none;
    height:46vh;
    min-height:240px;
    width:100%;
  }
  .previewWrap{
    width:100%;height:100%;
    overflow-y:auto;overflow-x:hidden;
    padding:36px 10px 16px;
    gap:16px;
    border-bottom:1px solid var(--line);
    background:var(--bench);
    box-shadow:0 4px 12px rgba(0,0,0,.06);
  }

  /* Controls: take the remaining height and scroll internally */
  .controls{
    width:100%;flex:1;min-height:0;
    overflow-y:auto;overflow-x:hidden;
    border-right:0;padding:0 0 20px;
    height:auto;
  }
  .tab-panel{ padding:14px 16px 0; }
  .swatches{ grid-template-columns:repeat(3,1fr); }

  .btn{ padding:12px 18px;font-size:14px; }
  .seg button{ padding:12px 6px;font-size:14px; }
  .preset{ padding:10px 15px; }
  .field input,.field textarea{ padding:14px 12px;font-size:16px; }
  .opt{ font-size:14px; }
  .opt input{ width:18px;height:18px; }
  .group > .lbl{ font-size:12px;margin-bottom:12px; }
  .group{ margin-bottom:28px; }
  .sheetLabel{ font-size:13px;top:-30px; }
}

@media (max-width:380px){
  .swatches{grid-template-columns:repeat(2,1fr);}
}

/* ---------- Print ---------- */
@media print{
  .no-print{display:none !important;}
  html,body{background:#fff !important; max-width: none !important; overflow: visible !important;}
  .layout{display:block; width: auto !important; max-width: none !important; overflow: visible !important;}
  .previewOuter{height:auto !important;}
  .previewWrap{padding:0;margin:0;height:auto;overflow:visible !important;background:#fff !important;gap:0;display:block;}
  .sheetHolder{width:auto !important;height:auto !important;margin:0;}
  .sheetLabel{display:none;}
  .sheet{
    position:relative !important;
    transform:none !important;box-shadow:none !important;margin:0 !important;
    page-break-after:auto;break-after:auto;
  }
  .guide.noprint-guide{display:none !important;}
  .guide .gtxt{display:none !important;}
}