:root{
  --bg:#f7f5ef; --card:#ffffff; --ink:#16180f; --muted:#71766c;
  --line:#e6e1d4; --green:#1f5c4d; --green-2:#2c7a66;
  --rust:#b45309; --rust-soft:#fdf3e7;
  --shadow:0 1px 2px rgba(22,24,15,.05), 0 12px 32px -18px rgba(22,24,15,.35);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html,body{margin:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",sans-serif;
  font-size:16px; line-height:1.5;
  padding-bottom:calc(40px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
.app{max-width:520px;margin:0 auto;padding:0 18px}

header{display:flex;align-items:center;justify-content:space-between;padding:22px 0 14px}
.brand{display:flex;align-items:center;gap:9px;font-weight:750;letter-spacing:-.02em;font-size:17px;color:var(--ink);text-decoration:none}
.dot{width:22px;height:22px;border-radius:7px;background:linear-gradient(145deg,var(--green-2),var(--green));display:grid;place-items:center;color:#fff;font-size:12px;font-weight:800}
.pro-pill{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--rust);background:var(--rust-soft);border:1px solid #f3dcc1;padding:4px 9px;border-radius:99px;text-decoration:none}
body.is-pro .pro-pill{background:var(--green);border-color:var(--green);color:#fff}

h1{font-size:26px;line-height:1.2;letter-spacing:-.03em;margin:6px 0 6px;font-weight:750}
.sub{color:var(--muted);font-size:14px;margin:0 0 18px}

.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.pad{padding:18px}

label.lbl{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}

.field{display:flex;align-items:center;gap:8px;background:#fbfaf6;border:1.5px solid var(--line);border-radius:14px;padding:10px 14px;transition:.15s}
.field:focus-within{border-color:var(--green);background:#fff;box-shadow:0 0 0 4px rgba(31,92,77,.08)}
.field span{font-size:20px;color:var(--muted);font-weight:600;flex:0 0 auto}
.field input{flex:1;border:0;background:transparent;outline:none;font-size:24px;font-weight:750;letter-spacing:-.02em;width:100%;color:var(--ink);font-variant-numeric:tabular-nums;min-width:0}
.field input::placeholder{color:#c9c4b6}
.field input.date{font-size:17px;font-weight:650;letter-spacing:0}
.field select{flex:1;border:0;background:transparent;outline:none;font-size:17px;font-weight:700;color:var(--ink);width:100%;min-width:0;appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' fill='none' stroke='%2371766c' stroke-width='1.8' stroke-linecap='round'/></svg>");
  background-repeat:no-repeat;background-position:right 2px center;padding-right:22px}

.tabs{display:flex;gap:6px;background:#efeadf;border-radius:14px;padding:5px;margin-bottom:16px}
.tab{flex:1;border:0;background:transparent;border-radius:10px;padding:10px 6px;font-size:13px;font-weight:700;color:#5d6357;cursor:pointer;transition:.15s;font-family:inherit}
.tab[aria-selected="true"]{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}

.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:11px;padding:8px 13px;font-size:13.5px;font-weight:700;color:#3c4139;cursor:pointer;transition:.15s;font-family:inherit}
.chip[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#fff}
.chip:active{transform:scale(.97)}

.row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px}
.stack{display:grid;gap:12px}

.result{margin-top:18px;background:linear-gradient(155deg,#1f5c4d,#17453a);color:#fff;border-radius:18px;padding:20px;box-shadow:0 18px 40px -24px rgba(23,69,58,.9)}
.result .cap{font-size:12px;letter-spacing:.1em;text-transform:uppercase;opacity:.72;font-weight:700}
.result .big{font-size:46px;font-weight:800;letter-spacing:-.04em;line-height:1.05;margin:4px 0 14px;font-variant-numeric:tabular-nums;word-break:break-all}
.split{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid rgba(255,255,255,.18);padding-top:14px;gap:8px}
.split div span{display:block;font-size:11px;opacity:.68;letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.split div b{font-size:17px;font-weight:750;font-variant-numeric:tabular-nums;word-break:break-word}
.split.two{grid-template-columns:1fr 1fr}

.list{margin:0;padding:0;list-style:none}
.list li{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:15px}
.list li:last-child{border-bottom:0}
.list li span{color:var(--muted);font-size:13.5px}
.list li b{font-weight:750;font-variant-numeric:tabular-nums;text-align:right}

.pro{margin-top:20px;border:1.5px dashed #e5cdb2;background:var(--rust-soft);border-radius:16px;padding:16px 18px}
.pro h3{margin:0 0 4px;font-size:15px;letter-spacing:-.01em}
.pro p{margin:0;font-size:13px;color:#7a5a35;line-height:1.55}
.pro ul{margin:8px 0 12px;padding:0;list-style:none;display:grid;gap:5px}
.pro li{font-size:13px;color:#6b4d2c;display:flex;gap:8px;align-items:flex-start}
.pro li::before{content:"";width:6px;height:10px;flex:0 0 auto;margin:3px 6px 0 3px;border-right:2px solid #c07a2c;border-bottom:2px solid #c07a2c;transform:rotate(42deg);border-radius:1px}
.btn{display:block;width:100%;text-align:center;background:var(--rust);color:#fff;text-decoration:none;font-weight:750;font-size:15px;padding:13px;border-radius:12px;border:0;cursor:pointer;font-family:inherit}
.btn:active{transform:scale(.99)}
.btn.ghost{background:transparent;color:var(--rust);border:1.5px solid #e5cdb2}
body.is-pro .btn[data-buy]{background:#e9e3d5;color:#8b8b7d;cursor:default}

footer{margin-top:28px;padding:0 0 18px;color:var(--muted);font-size:12px;display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
footer a{color:var(--muted);text-decoration:none;border-bottom:1px solid #d8d3c5}


.area{width:100%;min-height:148px;border:1.5px solid var(--line);border-radius:14px;padding:13px 14px;font-family:inherit;font-size:15px;line-height:1.55;background:#fbfaf6;color:var(--ink);resize:vertical;outline:none;transition:.15s}
.area:focus{border-color:var(--green);background:#fff;box-shadow:0 0 0 4px rgba(31,92,77,.08)}
.area::placeholder{color:#c9c4b6}
.range{width:100%;accent-color:var(--green);margin:2px 0 0}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.01em}
.btnrow{display:flex;gap:8px;margin-top:12px}
.btnrow .btn{flex:1}
.btn.alt{background:#efeadf;color:var(--ink)}
.btn.alt:active{transform:scale(.99)}
.pill-tag{display:inline-block;font-size:12px;font-weight:800;padding:4px 10px;border-radius:99px;background:rgba(255,255,255,.16);color:#fff;letter-spacing:.05em;text-transform:uppercase}
.hint{font-size:12.5px;color:var(--muted);margin:10px 0 0;line-height:1.5}
.wide{max-width:640px}

.toast{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));transform:translate(-50%,220%);opacity:0;pointer-events:none;background:#16180f;color:#fff;font-size:13.5px;padding:11px 18px;border-radius:99px;transition:.25s;z-index:9;max-width:90vw;text-align:center}
.toast.show{transform:translate(-50%,0);opacity:1}


/* --- file dropzone + file list (PDF tools) --- */
.drop{border:1.5px dashed #cfc8b6;border-radius:16px;background:#fbfaf6;padding:24px 18px;text-align:center;cursor:pointer;transition:.15s;display:block}
.drop:hover,.drop.over{border-color:var(--green);background:#fff}
.drop b{display:block;font-size:15px;margin-bottom:4px}
.drop span{font-size:12.5px;color:var(--muted)}
.drop .ico{width:34px;height:34px;margin:0 auto 10px;border-radius:11px;background:#eef3f0;display:grid;place-items:center;font-size:16px;color:var(--green)}
.drop.slim{padding:20px 16px}
.filelist{display:grid;gap:8px;margin-top:14px}
.fileitem{display:flex;align-items:center;gap:10px;background:#fbfaf6;border:1px solid var(--line);border-radius:12px;padding:9px 11px}
.fileitem .fname{flex:1;min-width:0}
.fileitem .fname b{display:block;font-size:13.5px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fileitem .fname span{font-size:11.5px;color:var(--muted)}
.fileitem .ops{display:flex;gap:1px;flex:0 0 auto}
.iconbtn{width:27px;height:27px;border:0;background:transparent;border-radius:7px;color:#6b7065;font-size:14px;cursor:pointer;display:grid;place-items:center;padding:0;font-family:inherit;line-height:1}
.iconbtn:hover{background:#efeadf;color:var(--ink)}
.iconbtn:disabled{opacity:.28;cursor:default}
.iconbtn.danger:hover{background:#fbe9e2;color:#b45309}
.thumb{width:40px;height:40px;border-radius:8px;object-fit:cover;background:#efeadf;flex:0 0 auto}
.note{font-size:12.5px;color:var(--muted);margin:12px 0 0;line-height:1.5}
.note b{color:var(--ink)}
.busy{opacity:.55;pointer-events:none}


/* --- long-form content blocks (how-to / use cases / FAQ) --- */
.doc{margin:40px 0 8px}
.doc h2{font-size:16.5px;line-height:1.34;letter-spacing:-.3px;margin:30px 0 10px;font-weight:700;padding-right:6px}
.doc h2:first-child{margin-top:0}
.doc p{font-size:14.5px;line-height:1.62;color:#3d423d;margin:0 0 12px}
.doc ol,.doc ul{margin:0 0 14px;padding-left:19px}
.doc li{font-size:14.5px;line-height:1.6;margin-bottom:8px;color:#3d423d}
.doc li b,.doc p b{color:var(--ink);font-weight:650}
.doc ol li::marker{color:var(--muted);font-weight:600}
.faq{margin:2px 0 0}
.faq details{border-top:1px solid var(--line);padding:13px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{font-size:14.5px;font-weight:600;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;gap:14px;align-items:flex-start;line-height:1.45}
.faq summary::-webkit-details-marker{display:none}
.faq summary::marker{content:""}
.faq summary::after{content:"+";color:var(--muted);font-weight:400;font-size:18px;line-height:1;flex:0 0 auto;margin-top:-1px}
.faq details[open] summary::after{content:"\2212"}
.faq p{margin:9px 0 0;font-size:14px;line-height:1.6;color:#4c514c}

@media (prefers-color-scheme: dark){
  :root{--bg:#12140f;--card:#1a1d17;--ink:#f2f0e8;--muted:#9aa093;--line:#2b2f26;--rust-soft:#2a2015}
  .field{background:#151812}
  .field input,.field select{color:var(--ink)}
  .chip{background:#1f231c;color:#e8e5db}
  .tabs{background:#1c201a}
  .tab{color:#9aa093}
  .tab[aria-selected="true"]{background:#2b2f26;color:var(--ink)}
  .area{background:#151812;color:var(--ink)}
  .btn.alt{background:#2b2f26;color:var(--ink)}
  .pro{background:#241a10;border-color:#4a3823}
  .pro p,.pro li{color:#d3b28c}
  .result{box-shadow:none}
  body.is-pro .btn[data-buy]{background:#2b2f26;color:#71766c}
}

/* breadcrumbs */
.crumbs{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);margin:0 0 12px;flex-wrap:wrap;line-height:1.3}
.crumbs a{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent;padding-bottom:1px}
.crumbs a:hover{color:var(--green);border-bottom-color:#cfe2d9}
.crumbs i{font-style:normal;color:#c9c4b6}
.crumbs span{color:#4a4f45;font-weight:650}

/* related tools */
.rel{margin:32px 0 0;padding:24px 0 0;border-top:1px solid var(--line)}
.rel h2{font-size:11.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.rel-grid{display:grid;gap:8px}
.rel-grid a{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 14px;text-decoration:none;color:var(--ink);transition:.15s}
.rel-grid a:hover{border-color:#b9c8bf;transform:translateY(-1px);box-shadow:0 10px 24px -20px rgba(22,24,15,.5)}
.rel-grid b{display:block;font-size:14px;font-weight:720;letter-spacing:-.012em;margin-bottom:1px}
.rel-grid span{display:block;font-size:12.5px;color:var(--muted);line-height:1.42}
.rel-more{margin:13px 0 0;font-size:12.5px}
.rel-more a{color:var(--green);font-weight:750;text-decoration:none;border-bottom:1px solid #cfe2d9}
@media(min-width:560px){.rel-grid{grid-template-columns:1fr 1fr}}

/* category pages */
.tlist{display:grid;gap:10px;margin:20px 0 8px}
.tlist a{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--ink);transition:.15s}
.tlist a:hover{border-color:#b9c8bf;transform:translateY(-1px);box-shadow:var(--shadow)}
.tlist b{display:block;font-size:15.5px;font-weight:730;letter-spacing:-.015em;margin-bottom:2px}
.tlist span{display:block;font-size:13px;color:var(--muted);line-height:1.5}
.cats{margin:30px 0 0;padding:24px 0 0;border-top:1px solid var(--line)}
.cats h2{font-size:11.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.cats ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.cats a{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 14px;text-decoration:none;color:var(--ink);font-size:14px;font-weight:700;transition:.15s}
.cats a:hover{border-color:#b9c8bf}
.cats i{font-style:normal;font-size:11.5px;color:var(--muted);font-weight:600}

.app.wide{max-width:660px}
.doc a{color:var(--green);text-decoration:none;border-bottom:1px solid #cfe2d9}
.doc a:hover{border-bottom-color:var(--green)}

/* doc tables (worked examples) */
.doc .tw{overflow-x:auto;margin:6px 0 16px;-webkit-overflow-scrolling:touch}
.doc table{width:100%;border-collapse:collapse;font-size:13.5px;line-height:1.5}
.doc .tw table{margin:0}
.doc th{text-align:left;font-weight:700;color:var(--ink);background:#f6f7f4;border-bottom:1px solid #dde2da;padding:8px 10px;white-space:nowrap}
.doc td{padding:8px 10px;border-bottom:1px solid #eceee9;color:#3d423d;vertical-align:top}
.doc tr:last-child td{border-bottom:none}
.doc table b{color:var(--ink);font-weight:650}
.doc code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;background:#f2f4ef;padding:1px 5px;border-radius:4px;color:#2f3a33;word-break:break-all}
.doc i{font-style:italic}
@media(max-width:560px){
  .doc table{font-size:12.5px;min-width:430px}
  .doc th,.doc td{padding:7px 8px}
}

/* inline tool screenshots */
.doc figure{margin:4px 0 18px}
.doc figure img{width:100%;max-width:430px;height:auto;display:block;margin:0 auto;border:1px solid #e3e6df;border-radius:12px;background:#fff}
.doc figcaption{font-size:12.5px;line-height:1.45;color:#8a8f85;margin:8px auto 0;max-width:430px;text-align:center}