*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:#f4f6f8;color:#1a1f2b;font-size:15px}
header{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:#0f766e;color:#fff}
header a{color:#fff;text-decoration:none}
.logo{font-weight:700;font-size:17px}
nav{display:flex;gap:16px;align-items:center}
main{max-width:960px;margin:24px auto;padding:0 16px}
.card{background:#fff;border-radius:12px;padding:24px;margin-bottom:18px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.narrow{max-width:520px;margin-left:auto;margin-right:auto}
.center{text-align:center}
h1{font-size:22px;margin:0 0 12px}h2{font-size:17px;margin:0 0 12px}
.row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
label{display:block;font-weight:600;font-size:13px;margin:0 0 14px;color:#384152}
input,textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid #cfd6de;border-radius:8px;font:inherit}
input[type=file]{padding:8px;background:#fafbfc}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:600px){.two{grid-template-columns:1fr}header{padding:12px 16px}}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:14px}
.check input{width:auto;margin-top:3px}
.btn{display:inline-block;background:#0f766e;color:#fff;border:0;border-radius:8px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:#0b5e58}.btn.small{padding:6px 12px;font-size:13px}.btn.big{width:100%;padding:14px;font-size:16px}
.btn.ghost{background:#fff;color:#0f766e;border:1px solid #0f766e}
.btn.danger{background:#fff;color:#b42318;border:1px solid #e5b4ae}
.btn.wa{background:#25d366}
.btn:disabled{opacity:.6}
.actions{display:flex;flex-wrap:wrap;gap:8px}
.link{background:none;border:0;color:#0f766e;cursor:pointer;padding:4px 0;font:inherit}
.flash{padding:12px 14px;border-radius:8px;margin-bottom:14px}
.flash.ok{background:#e6f6f3;color:#0b5e58}.flash.err{background:#fdecea;color:#912018}.flash.warn{background:#fff7e0;color:#7a5600}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.stats div{background:#fff;border-radius:12px;padding:16px;text-align:center;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.stats b{display:block;font-size:26px}.stats span{color:#667085;font-size:13px}
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:12px;color:#667085;text-transform:uppercase;padding:8px;border-bottom:1px solid #e6e9ee}
td{padding:10px 8px;border-bottom:1px solid #f0f2f5;vertical-align:top}
tbody tr{cursor:pointer}tbody tr:hover{background:#f8fafb}
td a{color:#1a1f2b;font-weight:600;text-decoration:none}small{color:#667085}
#q{width:260px;margin:0}
.badge{display:inline-block;padding:3px 10px;border-radius:99px;font-size:12px;font-weight:600}
.gris{background:#eef0f3;color:#475467}.ambar{background:#fff4d6;color:#8a5a00}.verde{background:#dcf5ec;color:#0b6b4f}.rojo{background:#fdecea;color:#912018}
.copy{display:flex;gap:8px;margin-top:6px}.copy input{margin:0}
.log{list-style:none;padding:0;margin:0}.log li{padding:8px 0;border-bottom:1px solid #f0f2f5;font-size:14px}
.log time{color:#667085;margin-right:8px}
.hint{color:#667085;font-size:13px}code{font-size:11px;word-break:break-all}
.empty{color:#667085;text-align:center;padding:30px}
.pdfbox{border:1px solid #e1e5ea;border-radius:8px;overflow:hidden;height:70vh;background:#eee}
.pdfbox iframe{width:100%;height:100%;border:0}
.msg{background:#f6f8fa;padding:12px;border-radius:8px}
.tabs{display:flex;gap:6px;margin-bottom:8px}
.tab{background:#eef0f3;border:0;border-radius:8px;padding:8px 14px;cursor:pointer;font:inherit}
.tab.on{background:#0f766e;color:#fff}
#pad{width:100%;height:180px;border:2px dashed #cfd6de;border-radius:8px;background:#fff;touch-action:none;display:block}
#preview{font-family:"Brush Script MT","Segoe Script","Snell Roundhand",cursive;font-style:italic;font-size:44px;color:#0b1f4d;padding:20px;border:2px dashed #cfd6de;border-radius:8px;margin-top:8px;min-height:90px}
#m-escribir,#m-dibujar{margin-bottom:16px}
.tick{width:64px;height:64px;border-radius:50%;background:#dcf5ec;color:#0b6b4f;font-size:34px;line-height:64px;margin:0 auto 12px}
.modo{border:1px solid #e1e5ea;border-radius:8px;padding:12px 14px;margin:0 0 14px}
.modo legend{font-weight:600;font-size:13px;color:#384152;padding:0 4px}
.modo .check{margin-bottom:8px}
.firma-actual{display:block;max-width:260px;max-height:110px;margin-top:6px;border:1px solid #e1e5ea;border-radius:8px;padding:8px;background:#fff}
.codebox{background:#f6f8fa;border-radius:8px;padding:14px;margin:0 0 16px}
.codebox input{max-width:160px;letter-spacing:4px;font-size:18px;text-align:center}
.codebox p{margin:0 0 8px}
a.tab{text-decoration:none;color:#384152;display:inline-block}
a.tab.on{color:#fff}
.card>.tabs{margin-bottom:14px}