/* ============================================================
   FirmaSegura — Sistema visual premium (v2)
   UI: Manrope · Texto: Inter · Datos/códigos: mono
   Marca: navy autoridad · Acción: cobalto · Verificado: esmeralda
   ============================================================ */
:root{
  --navy:#0d1b3e; --navy-2:#13245a; --navy-soft:#1c2f63;
  --ink:#0f1729; --ink-2:#27324a; --muted:#5b6678; --faint:#9aa3b6;
  --bg:#f4f6fb; --bg-2:#eaeef6; --surface:#ffffff; --surface-2:#f9fafd;
  --line:#e4e8f1; --line-2:#eef1f7;
  --brand:#2950e6; --brand-d:#1e3fc4; --brand-50:#eef2ff; --brand-100:#e0e7ff;
  --ok:#0e9f6e; --ok-50:#e7f7f0; --gold:#b8862f; --warn:#c2700a; --danger:#dc2b3a; --danger-50:#fdecee;
  --r:16px; --r-sm:11px; --r-xs:8px;
  --sh-xs:0 1px 2px rgba(13,27,62,.06);
  --sh-sm:0 2px 6px rgba(13,27,62,.06),0 1px 2px rgba(13,27,62,.05);
  --sh:0 10px 30px -10px rgba(13,27,62,.18),0 2px 8px rgba(13,27,62,.06);
  --sh-lg:0 30px 70px -22px rgba(13,27,62,.40);
  --sidebar:252px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:'Inter',-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  font-size:15.5px;line-height:1.6;-webkit-font-smoothing:antialiased;letter-spacing:-.006em}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-d)}
h1,h2,h3,h4,.dsp{font-family:'Manrope','Inter',sans-serif;font-weight:800;line-height:1.14;letter-spacing:-.025em;color:var(--ink)}
h1{font-size:clamp(26px,3.4vw,36px);margin:.1em 0 .35em}
h2{font-size:21px;margin:.2em 0 .5em;font-weight:700}
h3{font-size:16.5px;font-weight:700}
p{margin:.4em 0}
code,.mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.86em}
.sub{color:var(--muted)} .muted{color:var(--muted)!important} .center{text-align:center}
.container{max-width:1100px;margin:0 auto;padding:30px 24px 70px}

/* ===================== Buttons ===================== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  background:var(--brand);color:#fff!important;border:1px solid transparent;
  padding:11px 19px;border-radius:11px;font-weight:600;font-size:14.5px;font-family:'Manrope',sans-serif;letter-spacing:-.01em;
  box-shadow:0 1px 2px rgba(13,27,62,.16);transition:transform .12s,box-shadow .2s,background .2s,border-color .2s;text-decoration:none!important}
.btn:hover{background:var(--brand-d);transform:translateY(-1px);box-shadow:var(--sh)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:7px 13px;font-size:13px;border-radius:9px}
.btn-lg{padding:14px 26px;font-size:15.5px}
.btn-ghost{background:var(--surface);color:var(--ink)!important;border-color:var(--line);box-shadow:var(--sh-xs)}
.btn-ghost:hover{background:var(--surface-2);border-color:#d3d9e8}
.btn-navy{background:var(--navy)}.btn-navy:hover{background:var(--navy-2)}
.btn-ok{background:var(--ok)}.btn-ok:hover{background:#0c8a60}
.btn-danger{background:var(--danger)}.btn-danger:hover{background:#bd1f2d}
.btn-white{background:#fff;color:var(--navy)!important}.btn-white:hover{background:#eef2ff}
.btn-block{width:100%}

/* ===================== Cards / layout ===================== */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:26px;box-shadow:var(--sh-sm);margin-bottom:22px}
.card-pad-lg{padding:32px}
.grid{display:flex;flex-wrap:wrap;margin:-11px}
.grid>*{margin:11px;flex:1 1 300px;min-width:0}
.grid-2>*{flex:1 1 340px}
.row{display:flex;gap:12px;flex-wrap:wrap}.row>*{flex:1;min-width:140px}
.stack>*+*{margin-top:14px}

/* ===================== Forms ===================== */
label{display:block;font-weight:600;font-size:13px;margin:15px 0 6px;color:var(--ink-2)}
input[type=text],input[type=email],input[type=password],textarea,select{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:15px;font-family:inherit;background:var(--surface-2);color:var(--ink);transition:.15s}
input::placeholder,textarea::placeholder{color:var(--faint)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px var(--brand-50)}
input[type=file]{padding:9px;font-size:14px;background:var(--surface-2)}

/* ===================== Flash ===================== */
.flash{background:var(--brand-50);border:1px solid #cdd8fb;color:#28408f;padding:13px 16px;border-radius:var(--r-sm);margin-bottom:20px;font-size:14.5px;display:flex;gap:10px;align-items:flex-start}
.flash:before{content:"";flex:none;width:18px;height:18px;border-radius:50%;margin-top:1px;background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round'%3E%3Cline x1='12' y1='8' x2='12' y2='13'/%3E%3Ccircle cx='12' cy='17' r='.5'/%3E%3C/svg%3E") center/12px no-repeat}

/* ===================== Tables ===================== */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line-2);font-size:14px;vertical-align:middle}
thead th{color:var(--faint);font-weight:700;font-size:11px;text-transform:uppercase;letter-spacing:.07em;border-bottom:1px solid var(--line)}
tbody tr{transition:background .12s}
tbody tr:hover{background:var(--brand-50)}

/* ===================== Pills ===================== */
.pill{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;letter-spacing:.02em}
.pill:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.8}
.pill.draft{background:#eef0f5;color:#5b6678}
.pill.sent{background:#fff4d9;color:#8a5a00}
.pill.completed,.pill.signed{background:var(--ok-50);color:#0c8a60}
.pill.pending{background:var(--danger-50);color:#b4232f}
.pill.opened{background:#e0ecff;color:#1d4ed8}

/* ===================== Marketing top nav ===================== */
.site-nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:15px 30px;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;font-family:'Manrope',sans-serif;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:-.03em}
.brand:hover{color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--navy);color:#fff;font-size:16px;box-shadow:var(--sh-xs)}
.brand-mark.on-dark{background:#fff;color:var(--navy)}
.site-nav .links{display:flex;align-items:center;gap:6px}
.site-nav .links a{color:var(--ink-2);font-size:14.5px;font-weight:600;padding:8px 13px;border-radius:9px}
.site-nav .links a:hover{background:var(--brand-50);color:var(--brand-d)}

/* Topbar para páginas públicas firmar/verificar */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;background:#fff;border-bottom:1px solid var(--line)}
.topbar nav{display:flex;gap:8px;align-items:center}
.topbar nav a{color:var(--ink-2);font-weight:600;font-size:14px;padding:7px 12px;border-radius:9px}
.plan-badge{font-size:11px;font-weight:800;padding:5px 11px;border-radius:999px;letter-spacing:.04em}
.plan-badge.free{background:#fff4d9;color:#8a5a00}.plan-badge.pro{background:var(--ok-50);color:#0c8a60}

/* ===================== Hero (oscuro premium) ===================== */
.hero{position:relative;background:radial-gradient(1200px 500px at 80% -10%,#1c2f6b 0%,transparent 60%),linear-gradient(180deg,#0d1b3e,#0b1733);color:#eaf0ff;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none}
.hero-inner{position:relative;max-width:1100px;margin:0 auto;padding:64px 24px 80px;display:flex;flex-wrap:wrap;align-items:center;gap:48px}
.hero-col{flex:1 1 440px;min-width:0}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:#bcd0ff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:6px 13px;border-radius:999px;letter-spacing:.02em;margin-bottom:20px}
.hero .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#2ee6a6;box-shadow:0 0 0 4px rgba(46,230,166,.18)}
.hero h1{color:#fff;font-size:clamp(32px,4.6vw,52px);margin:0 0 18px;letter-spacing:-.03em}
.hero h1 .accent{color:#8fb4ff;background:linear-gradient(90deg,#8fb4ff,#69e6c0);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
@supports not ((-webkit-background-clip:text) or (background-clip:text)){.hero h1 .accent{-webkit-text-fill-color:#8fb4ff}}
.hero-lead{font-size:18px;color:#c2cce6;max-width:520px;margin:0 0 28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12)}
.hero-trust span{display:flex;align-items:center;gap:8px;font-size:13px;color:#c9d3ec;font-weight:600}

/* Certificado flotante */
.cert{flex:1 1 360px;display:flex;justify-content:center}
.cert-card{position:relative;width:340px;max-width:86vw;background:#fff;color:var(--ink);border-radius:18px;box-shadow:var(--sh-lg);padding:26px 26px 30px;transform:rotate(-1.6deg)}
.cert-card .cc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.cc-brand{display:flex;align-items:center;gap:9px;font-family:'Manrope';font-weight:800;font-size:14px}
.cc-brand .m{width:24px;height:24px;border-radius:7px;background:var(--navy)}
.cc-verified{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;color:#0c8a60;background:var(--ok-50);padding:5px 10px;border-radius:999px}
.cc-lines{display:grid;gap:9px;margin-bottom:20px}
.cc-lines i{height:9px;border-radius:5px;background:#eef1f8;display:block}
.cc-lines i:nth-child(2){width:92%}.cc-lines i:nth-child(3){width:78%}.cc-lines i:nth-child(4){width:88%}
.cc-sign{display:flex;align-items:flex-end;justify-content:space-between;border-top:1px dashed #ccd4e6;padding-top:14px}
.cc-scrawl{font-family:'Caveat',cursive;font-size:33px;color:#16204a;line-height:.8;transform:rotate(-3deg)}
.cc-scrawl small{display:block;font-family:'Inter';font-size:10px;color:var(--faint);transform:rotate(3deg);margin-top:6px;letter-spacing:0}
.cc-seal{width:64px;height:64px;border-radius:50%;background:radial-gradient(circle at 32% 30%,#fbf1d6,#e7c987);border:2px solid #d6b364;display:grid;place-items:center;text-align:center;box-shadow:var(--sh)}
.cc-seal b{font-family:'Manrope';font-size:8.5px;color:#7a5a14;line-height:1.05;letter-spacing:.03em}
.cc-qr{position:absolute;right:-16px;bottom:-16px;width:62px;height:62px;border-radius:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh);
  background-image:linear-gradient(45deg,#0f1729 25%,transparent 25%,transparent 75%,#0f1729 75%),linear-gradient(45deg,#0f1729 25%,transparent 25%,transparent 75%,#0f1729 75%);background-size:14px 14px;background-position:0 0,7px 7px}

/* ===================== Secciones marketing ===================== */
.section{max-width:1100px;margin:0 auto;padding:62px 24px}
.section-head{text-align:center;max-width:640px;margin:0 auto 36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;color:var(--brand-d);background:var(--brand-100);padding:6px 13px;border-radius:999px;letter-spacing:.03em;margin-bottom:14px}
.steps{display:flex;flex-wrap:wrap;margin:-11px}
.steps>*{margin:11px;flex:1 1 280px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.step .n{font-family:'Manrope';font-weight:800;font-size:13px;color:var(--brand);background:var(--brand-50);width:30px;height:30px;border-radius:9px;display:grid;place-items:center;margin-bottom:14px}
.features{display:flex;flex-wrap:wrap;margin:-10px}
.features>*{margin:10px;flex:1 1 300px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:transform .18s,box-shadow .2s,border-color .2s}
.feature:hover{transform:translateY(-3px);box-shadow:var(--sh);border-color:#d6deef}
.feature .fi{width:44px;height:44px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:20px;margin-bottom:14px}
.feature h3{margin:.1em 0 .35em}.feature p{font-size:14px;color:var(--muted);margin:0}
.cta-band{background:linear-gradient(120deg,var(--navy),#15265e);color:#fff;border-radius:20px;padding:40px;text-align:center;box-shadow:var(--sh)}
.cta-band h2{color:#fff;font-size:26px}.cta-band p{color:#c2cce6;max-width:520px;margin:0 auto 18px}

/* ===================== App shell (zona privada) ===================== */
.app-main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);background:var(--navy);
  color:#c7d2ec;display:flex;flex-direction:column;padding:20px 16px;z-index:60;
  background-image:radial-gradient(700px 300px at 0% 0%,rgba(85,120,255,.18),transparent 60%)}
.sidebar .s-brand{display:flex;align-items:center;gap:11px;color:#fff;font-family:'Manrope';font-weight:800;font-size:19px;letter-spacing:-.03em;padding:6px 8px 18px}
.sidebar .s-brand:hover{color:#fff}
.sidebar .s-brand .brand-mark{background:#fff;color:var(--navy)}
.s-section{font-size:10.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#7488bd;padding:14px 12px 6px}
.s-link{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#c7d2ec;font-weight:600;font-size:14.5px;transition:.14s}
.s-link svg{flex:none;opacity:.85}
.s-link:hover{background:rgba(255,255,255,.07);color:#fff}
.s-link.active{background:linear-gradient(90deg,var(--brand),#4a6bff);color:#fff;box-shadow:0 6px 16px -6px rgba(41,80,230,.7)}
.s-link.active svg{opacity:1}
.s-spacer{flex:1}
.s-user{border-top:1px solid rgba(255,255,255,.1);padding-top:14px;margin-top:8px}
.s-user .who{display:flex;align-items:center;gap:10px;padding:6px 8px}
.s-user .avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(150deg,#4a6bff,#7a93ff);color:#fff;display:grid;place-items:center;font-weight:800;font-family:'Manrope';font-size:14px}
.s-user .who b{color:#fff;font-size:13.5px;display:block;line-height:1.2}
.s-user .who span{color:#8c9cc6;font-size:11.5px}
.s-user .s-link{margin-top:6px;color:#aab8df}

.app-topbar{position:sticky;top:0;z-index:40;background:rgba(244,246,251,.85);backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 30px}
.app-topbar .pt{font-family:'Manrope';font-weight:800;font-size:19px;letter-spacing:-.02em}
.app-topbar .pt small{display:block;font-family:'Inter';font-weight:500;font-size:12.5px;color:var(--muted);letter-spacing:0}
.app-topbar .tb-actions{display:flex;align-items:center;gap:12px}
.app-content{flex:1;max-width:1080px;width:100%;margin:0 auto;padding:28px 30px 60px}

@media(max-width:860px){
  .sidebar{position:static;width:auto;flex-direction:row;flex-wrap:wrap;align-items:center;padding:12px 16px;gap:6px}
  .sidebar .s-brand{padding:6px 8px;flex:1 1 100%}
  .s-section,.s-spacer{display:none}
  .s-user{border:0;padding:0;margin:0;display:flex;gap:6px;align-items:center}
  .s-user .who{display:none}
  .app-main{margin-left:0}
  .s-link{padding:8px 11px;font-size:13.5px}
}

/* ===================== Plans ===================== */
.plans{display:flex;flex-wrap:wrap;margin:-10px}
.plans>*{margin:10px;flex:1 1 250px}
.price{font-family:'Manrope';font-size:38px;font-weight:800}
.price small{font-size:14px;color:var(--muted);font-weight:500;font-family:'Inter'}
.checklist{list-style:none;padding:0;margin:16px 0}
.checklist li{padding:7px 0 7px 28px;position:relative;font-size:14px;color:var(--ink-2)}
.checklist li:before{content:"";position:absolute;left:0;top:8px;width:17px;height:17px;border-radius:50%;
  background:var(--ok-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%230e9f6e' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat}

/* ===================== Misc ===================== */
.kv{display:grid;grid-template-columns:180px 1fr;gap:9px 16px;font-size:14px}
.kv b{color:var(--muted);font-weight:600}
.doc-content{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:30px;min-height:280px;color:var(--ink-2)}
.doc-content h1,.doc-content h2,.doc-content h3{font-family:'Manrope'}
.doc-content table{border:1px solid var(--line)}.doc-content td,.doc-content th{border:1px solid var(--line)}
.sigwrap{border:2px dashed #cfd6e6;border-radius:var(--r-sm);background:var(--surface-2)}
#sigpad{width:100%;height:180px;display:block;touch-action:none;cursor:crosshair}
.verify-ok{border-left:4px solid var(--ok)}.verify-bad{border-left:4px solid var(--danger)}
.empty{text-align:center;color:var(--muted);padding:48px 20px}.empty .btn{margin-top:14px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px}
.stat .v{font-family:'Manrope';font-weight:800;font-size:30px;color:var(--ink);line-height:1}
.stat .k{color:var(--muted);font-size:13px;margin-top:6px}

/* ===================== Footer ===================== */
.site-footer{border-top:1px solid var(--line);background:var(--surface)}
.site-footer .inner{max-width:1100px;margin:0 auto;padding:28px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-footer p{color:var(--muted);font-size:13px;margin:0;max-width:540px}

:focus-visible{outline:3px solid var(--brand-100);outline-offset:2px;border-radius:6px}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}