:root{
  --bg:#F7F1E1; --topbar:#D9E3DA; --card:#E3EBE1; --active-pill:#E3EBE1;
  --ink:#232821; --muted:#6B6F63; --border:#DCD5BF; --border-strong:#C7D0C2;
  --navy:#33415C; --moss:#4B5D3A; --amber-bg:#F0EBD8; --amber-border:#DED2AE; --amber-ink:#4A3F1E;
  --radius:6px;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-head:'Source Serif 4',Georgia,serif;
  --font-mono:'JetBrains Mono',monospace;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased;}
a{color:var(--navy);text-decoration:none;}
h1,h2,h3{font-family:var(--font-head);}
button,input,textarea,select{font-family:inherit;font-size:14px;}
img{max-width:100%;}

/* ---------- Top bar ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;background:var(--topbar);border-bottom:1px solid var(--border-strong);flex-wrap:wrap;gap:10px;}
.brand{font-family:var(--font-head);font-weight:700;font-size:17px;color:var(--ink);display:flex;align-items:center;gap:8px;}
.brand svg{flex-shrink:0;}
.topbar nav{display:flex;gap:18px;font-size:13.5px;}
.topbar nav a{color:var(--ink);font-weight:500;}
.topbar nav a.current{color:var(--navy);font-weight:700;}
.privacy-pill{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10.5px;color:var(--moss);background:var(--amber-bg);border:1px solid var(--amber-border);padding:5px 10px;border-radius:20px;white-space:nowrap;}

/* ---------- Home ---------- */
.home-inner{max-width:720px;margin:0 auto;padding:56px 24px 40px;}
.eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:16px;}
h1.hero{font-size:38px;line-height:1.18;font-weight:700;max-width:560px;margin:0 0 14px;}
p.sub{color:var(--muted);max-width:480px;margin:0 0 14px;font-size:15px;line-height:1.65;}
.privacy-banner{display:flex;gap:10px;align-items:flex-start;background:var(--amber-bg);border:1px solid var(--amber-border);border-radius:var(--radius);padding:14px 16px;max-width:640px;margin:18px 0 36px;font-size:13px;color:var(--amber-ink);line-height:1.55;}
.privacy-banner b{color:var(--moss);}
.cardgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:720px;}
.card{background:var(--card);border:1px solid var(--border-strong);border-radius:var(--radius);padding:22px;position:relative;overflow:hidden;display:block;color:inherit;}
.card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:var(--navy);}
.card .icon{width:38px;height:38px;border-radius:8px;background:#EAF0EA;display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--navy);}
.card h3{font-size:17px;margin:0 0 6px;}
.card p{font-size:13px;color:var(--muted);line-height:1.55;margin:0;}
.card .taglist{margin-top:12px;display:flex;gap:6px;flex-wrap:wrap;}
.card .tag{font-family:var(--font-mono);font-size:10px;color:var(--navy);background:#EAF0EA;padding:3px 7px;border-radius:4px;}
footer.site-footer{max-width:720px;margin:44px auto 0;padding:20px 24px 40px;border-top:1px solid var(--border);font-size:11.5px;color:var(--muted);line-height:1.6;}
footer.site-footer b{color:var(--ink);}

/* ---------- Tool shell (PDF / MD pages) ---------- */
.tool-shell{display:flex;min-height:calc(100vh - 60px);}
.sidebar{width:230px;background:var(--bg);border-right:1px solid var(--border);padding:14px 10px;flex-shrink:0;}
.sidebar .stool{display:flex;align-items:flex-start;gap:8px;padding:9px 10px;font-size:12.5px;color:var(--ink);cursor:pointer;border-radius:6px;line-height:1.35;margin-bottom:2px;background:none;border:none;width:100%;text-align:left;}
.sidebar .stool:hover{background:#EFE8D4;}
.sidebar .stool .txt{flex:1;min-width:0;word-break:break-word;}
.sidebar .stool .num{font-family:var(--font-mono);font-size:9.5px;color:var(--muted);width:15px;flex-shrink:0;margin-top:1px;}
.sidebar .stool.active{background:var(--active-pill);font-weight:600;color:var(--navy);box-shadow:inset 2px 0 0 var(--navy);}
.sidebar .stool svg{flex-shrink:0;color:var(--muted);margin-top:1px;}
.sidebar .stool.active svg{color:var(--navy);}
.sidebar .stool.new .txt::after{content:' NEW';font-family:var(--font-mono);font-size:8px;color:var(--moss);font-weight:700;}

.mobile-nav{display:none;padding:10px 16px;background:var(--bg);border-bottom:1px solid var(--border);}
.mobile-nav select{width:100%;padding:11px 12px;border-radius:6px;border:1px solid var(--border-strong);background:#fff;font-size:14px;color:var(--ink);}

.tool-main{flex:1;padding:30px 34px;min-width:0;max-width:720px;}
.tool-main h2{font-size:21px;margin:0 0 6px;}
.tool-main p.desc{font-size:13px;color:var(--muted);margin:0 0 20px;max-width:480px;line-height:1.55;}
.tool-panel{display:none;}
.tool-panel.active{display:block;}

.method-tabs{display:flex;gap:6px;margin-bottom:20px;border-bottom:1px solid var(--border);flex-wrap:wrap;}
.method-tabs button{padding:9px 16px;font-size:12.5px;font-weight:600;border:none;background:none;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;}
.method-tabs button.active{color:var(--navy);border-bottom-color:var(--navy);}
.method-panel{display:none;}
.method-panel.active{display:block;}

.subchips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px;}
.subchips button{font-size:11.5px;background:var(--card);border:1px solid var(--border-strong);padding:6px 12px;border-radius:20px;color:var(--ink);cursor:pointer;}
.subchips button.active{background:var(--navy);color:#fff;border-color:var(--navy);}

.dropzone{border:1.5px dashed var(--border-strong);border-radius:var(--radius);padding:26px;text-align:center;background:var(--card);max-width:460px;margin-bottom:16px;cursor:pointer;}
.dropzone svg{margin-bottom:8px;color:var(--muted);}
.dropzone p{font-size:13px;color:var(--muted);margin:0;}
.dropzone.drag{border-color:var(--navy);background:#EAF0EA;}
.dropzone input[type=file]{display:none;}
.filepill{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--border-strong);border-radius:var(--radius);padding:10px 14px;max-width:460px;margin-bottom:16px;font-size:13px;}
.filepill .name{font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.filepill .size{color:var(--muted);font-size:11.5px;flex-shrink:0;}

.field-row{display:flex;gap:14px;align-items:center;margin-bottom:16px;flex-wrap:wrap;font-size:12.5px;color:var(--ink);}
.field-row label{display:flex;align-items:center;gap:6px;}
.field-row input[type=text],.field-row input[type=password],.field-row input[type=number]{padding:7px 10px;border:1px solid var(--border-strong);border-radius:5px;font-size:13px;width:150px;}

.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 16px;border-radius:6px;border:1px solid var(--navy);background:var(--navy);color:#fff;font-size:13px;font-weight:600;cursor:pointer;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.btn.secondary{background:#fff;color:var(--navy);}
.btn.ghost{background:none;color:var(--navy);border:1px solid var(--border-strong);}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px;}

.status-line{margin-top:14px;font-size:12.5px;color:var(--muted);font-family:var(--font-mono);min-height:18px;}
.progress-bar{width:100%;max-width:460px;height:6px;background:var(--border);border-radius:3px;margin:10px 0;overflow:hidden;display:none;}
.progress-bar.show{display:block;}
.progress-bar .fill{height:100%;background:var(--navy);width:0%;transition:width .2s ease;}

.note-box{display:flex;gap:8px;align-items:flex-start;border-radius:var(--radius);padding:12px 14px;font-size:12px;max-width:480px;margin-top:16px;line-height:1.5;}
.note-box.moss{background:#EAF0EA;border:1px solid #CBDBC0;color:#33422A;}
.note-box.amber{background:var(--amber-bg);border:1px solid var(--amber-border);color:#5F4E14;}

.page-list{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0;max-width:600px;}
.page-thumb{width:80px;background:#fff;border:1px solid var(--border-strong);border-radius:4px;padding:6px;text-align:center;font-size:11px;color:var(--muted);cursor:grab;user-select:none;}
.page-thumb.removed{opacity:.35;text-decoration:line-through;}
.page-thumb .pnum{font-family:var(--font-mono);font-weight:600;color:var(--ink);margin-top:4px;}

.sig-canvas-wrap{max-width:420px;margin-bottom:14px;}
canvas.sig-pad{width:100%;height:150px;background:var(--card);border:1.5px dashed var(--border-strong);border-radius:var(--radius);touch-action:none;}
.sig-type-preview{max-width:420px;padding:20px;background:var(--card);border:1px solid var(--border-strong);border-radius:var(--radius);margin-bottom:14px;text-align:center;}
.sig-type-preview input{border:none;background:none;text-align:center;width:100%;font-size:34px;outline:none;}
.font-swatches{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;}
.font-swatches button{padding:8px 14px;border:1px solid var(--border-strong);border-radius:6px;background:#fff;font-size:16px;cursor:pointer;color:var(--ink);}
.font-swatches button.sel{border-color:var(--navy);box-shadow:0 0 0 1px var(--navy);}

.pdf-view-wrap{border:1px solid var(--border-strong);border-radius:var(--radius);background:#555;overflow:auto;max-width:100%;margin-bottom:14px;position:relative;}
.pdf-view-wrap canvas{display:block;margin:0 auto;}
.pdf-nav{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:12.5px;}
.pdf-toolbar{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;}
.pdf-toolbar button{padding:7px 12px;border:1px solid var(--border-strong);border-radius:6px;background:#fff;font-size:12px;cursor:pointer;}
.pdf-toolbar button.active{background:var(--navy);color:#fff;border-color:var(--navy);}

.ai-note{max-width:520px;margin-top:36px;padding-top:20px;border-top:1px solid var(--border);}
.ai-note h4{font-size:14px;margin:0 0 8px;color:var(--ink);}
.ai-note p{font-size:12px;color:var(--muted);line-height:1.6;margin:0;}

.size-warning{font-size:11.5px;color:var(--amber-ink);background:var(--amber-bg);border:1px solid var(--amber-border);padding:8px 12px;border-radius:5px;max-width:460px;margin-bottom:14px;display:none;}
.size-warning.show{display:block;}

/* ---------- Responsive ---------- */
@media (max-width: 760px){
  .topbar{padding:12px 16px;}
  .topbar nav{display:none;}
  .privacy-pill{font-size:9.5px;padding:4px 8px;}
  .home-inner{padding:32px 18px 24px;}
  h1.hero{font-size:26px;}
  .cardgrid{grid-template-columns:1fr;}
  .tool-shell{flex-direction:column;}
  .sidebar{display:none;}
  .mobile-nav{display:block;}
  .tool-main{padding:22px 18px;max-width:100%;}
}