/* =========================================================
   FactuEasy — hoja de estilos común
   Tipografía: Fraunces (títulos) + system-ui (texto) + mono (cifras)
   ========================================================= */

:root{
  --font-display:"Fraunces","Iowan Old Style","Georgia","Times New Roman",serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,"Cascadia Mono","SFMono-Regular","IBM Plex Mono",Consolas,monospace;
  --container:1160px;
  --radius-s:6px;
  --radius-m:10px;
  --radius-l:16px;
}

body[data-theme="light"], body:not([data-theme]){
  --ink:#201c17;
  --paper:#faf7f1;
  --paper-raised:#ffffff;
  --paper-2:#f1ebe0;
  --muted:#736a5c;
  --line:rgba(32,28,23,.14);
  --line-soft:rgba(32,28,23,.08);
  --accent:#9a3412;
  --accent-ink:#7c2a0d;
  --accent-soft:#f3e1d4;
  --ok:#2f6f4f;
  --ok-soft:#e2ede5;
  --shadow:0 1px 2px rgba(32,28,23,.05), 0 14px 32px rgba(32,28,23,.07);
}
body[data-theme="dark"]{
  --ink:#f1ece2;
  --paper:#16130f;
  --paper-raised:#1e1a15;
  --paper-2:#221d17;
  --muted:#a89d8b;
  --line:rgba(241,236,226,.14);
  --line-soft:rgba(241,236,226,.08);
  --accent:#e2884d;
  --accent-ink:#f0a26e;
  --accent-soft:rgba(226,136,77,.15);
  --ok:#63ab82;
  --ok-soft:rgba(99,171,130,.14);
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 22px 46px rgba(0,0,0,.45);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.5;
  transition:background .25s ease,color .25s ease;
}
h1,h2,h3,h4{font-family:var(--font-display);margin:0;line-height:1.18;font-weight:600;letter-spacing:-.01em;}
p{margin:0;}
a{color:inherit;}
ul{margin:0;padding:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
img{max-width:100%;display:block;}
.icon{width:1em;height:1em;display:inline-block;vertical-align:-.125em;flex-shrink:0;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{max-width:var(--container);margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:28px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto;}
.brand img{width:30px;height:30px;border-radius:7px;}
.brand-word{font-family:var(--font-display);font-weight:600;font-size:1.12rem;color:var(--ink);}
.brand-tag{display:none;}
.nav-links{display:flex;gap:26px;align-items:center;}
.nav-links a{font-size:.92rem;color:var(--muted);text-decoration:none;}
.nav-links a:hover{color:var(--ink);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.theme-toggle{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;
  color:var(--ink);
}
.theme-toggle .icon{width:16px;height:16px;}
.theme-toggle .icon-moon{display:none;}
body[data-theme="dark"] .theme-toggle .icon-sun{display:none;}
body[data-theme="dark"] .theme-toggle .icon-moon{display:block;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-s);border:1px solid transparent;cursor:pointer;text-decoration:none;
  font-family:var(--font-body);font-weight:600;font-size:.92rem;
  padding:.7rem 1.3rem;transition:background .15s ease,color .15s ease,border-color .15s ease;
  white-space:nowrap;
}
.btn .icon{width:15px;height:15px;}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--accent);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);}
.btn-sm{padding:.55rem 1.05rem;font-size:.85rem;}
.btn-block{width:100%;}
.final-cta .btn-primary{background:var(--paper);color:var(--ink);}
.final-cta .btn-primary:hover{background:var(--accent-soft);}
.final-cta .btn-ghost{border-color:rgba(255,255,255,.4);color:var(--paper);}
.final-cta .btn-ghost:hover{background:rgba(255,255,255,.08);}

/* ---------- hero ---------- */
.hero{padding:60px 0 44px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--accent);font-size:.82rem;font-weight:600;letter-spacing:.02em;
  margin-bottom:20px;padding-bottom:2px;border-bottom:1px solid var(--line);
}
.eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--ok);flex-shrink:0;}
.hero h1{font-size:clamp(2.05rem,3.4vw,2.95rem);margin-bottom:22px;}
.hero h1 em{color:var(--accent);font-style:italic;}
.hero-lead{font-size:1.08rem;color:var(--muted);max-width:52ch;margin-bottom:28px;line-height:1.62;}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px;}
.hero-note{font-size:.82rem;color:var(--muted);margin-bottom:30px;}

.trust-strip{display:flex;flex-wrap:wrap;gap:8px 22px;padding-top:22px;border-top:1px solid var(--line);}
.trust-item{display:flex;align-items:center;gap:7px;font-size:.82rem;color:var(--muted);}
.trust-item .icon{color:var(--ok);}

/* ---------- invoice mock ---------- */
.mock-wrap{max-width:400px;margin-left:auto;}
.mock-card{
  background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius-l);
  box-shadow:var(--shadow);padding:26px 26px 20px;transform:rotate(-1.1deg);
}
.mock-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:18px;padding-bottom:16px;border-bottom:1px dashed var(--line);}
.mock-head .who{font-family:var(--font-mono);font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;}
.mock-head .name{font-family:var(--font-display);font-weight:600;font-size:1.02rem;margin-top:3px;}
.mock-badge{
  display:flex;align-items:center;gap:5px;background:var(--ok-soft);color:var(--ok);
  border-radius:999px;padding:.28rem .6rem;font-size:.7rem;font-weight:700;white-space:nowrap;
}
.mock-badge .icon{width:12px;height:12px;}
.mock-rows{padding-bottom:14px;margin-bottom:14px;border-bottom:1px dashed var(--line);}
.mock-row{display:flex;justify-content:space-between;font-size:.85rem;padding:6px 0;color:var(--ink);gap:12px;}
.mock-row span:last-child{color:var(--muted);font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.mock-total{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px;}
.mock-total .label{font-size:.78rem;color:var(--muted);}
.mock-total .value{font-family:var(--font-mono);font-weight:600;font-size:1.4rem;}
.mock-foot{display:flex;flex-wrap:wrap;gap:8px;}
.mock-tag{font-family:var(--font-mono);font-size:.68rem;background:var(--paper-2);color:var(--muted);border-radius:var(--radius-s);padding:.3rem .55rem;}
.mock-caption{
  display:flex;align-items:baseline;gap:8px;max-width:360px;margin:20px auto 0;
  padding-left:14px;border-left:2px solid var(--accent);font-size:.85rem;color:var(--muted);line-height:1.55;
}
.mock-caption strong{font-family:var(--font-mono);color:var(--ink);}

/* ---------- section shell ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:620px;margin:0 auto 44px;text-align:center;}
.section-head h2{font-size:clamp(1.55rem,2.4vw,2.05rem);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:1.02rem;line-height:1.6;}

/* ---------- pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;}
.pillar{background:var(--paper-raised);padding:30px 26px;}
.section-alt .pillar{background:var(--paper-2);}
.pillar-icon{
  width:42px;height:42px;border-radius:var(--radius-m);display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--accent);margin-bottom:18px;
}
.pillar-icon .icon{width:20px;height:20px;}
.pillar h3{font-size:1.1rem;margin-bottom:8px;}
.pillar > p.desc{color:var(--muted);font-size:.9rem;line-height:1.55;margin-bottom:16px;}
.pillar ul{display:flex;flex-direction:column;gap:9px;}
.pillar li{display:flex;gap:8px;font-size:.85rem;color:var(--ink);line-height:1.4;list-style:none;}
.pillar li .icon{color:var(--ok);margin-top:.22em;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.step{padding-top:16px;border-top:1px solid var(--line);}
.step .num{font-family:var(--font-mono);font-size:.78rem;color:var(--accent);display:block;margin-bottom:10px;}
.step h3{font-size:1.02rem;margin-bottom:6px;}
.step p{color:var(--muted);font-size:.88rem;line-height:1.55;}

/* ---------- pricing ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch;}
.plan{
  background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:28px 26px;display:flex;flex-direction:column;border-top:3px solid var(--line);
}
.plan.featured{border-top-color:var(--accent);}
.plan-tag{color:var(--accent);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;}
.plan-name{font-family:var(--font-display);font-weight:600;font-size:1.18rem;margin-bottom:4px;}
.plan-desc{color:var(--muted);font-size:.85rem;margin-bottom:20px;min-height:2.6em;}
.plan-price{font-family:var(--font-mono);font-weight:600;font-size:2.1rem;margin-bottom:2px;}
.plan-price sup{font-size:1rem;font-weight:600;}
.plan-price-note{color:var(--muted);font-size:.78rem;margin-bottom:22px;}
.plan-features{display:flex;flex-direction:column;gap:11px;margin-bottom:24px;flex-grow:1;}
.plan-features li{display:flex;gap:9px;font-size:.87rem;line-height:1.4;list-style:none;}
.plan-features li .icon{color:var(--ok);margin-top:.2em;}

/* ---------- faq ---------- */
.faq{max-width:740px;margin:0 auto;display:flex;flex-direction:column;gap:10px;}
.faq details{background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius-m);padding:2px 20px;}
.faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:.97rem;display:flex;justify-content:space-between;align-items:center;gap:12px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-family:var(--font-mono);font-size:1.2rem;color:var(--accent);flex-shrink:0;}
.faq details[open] summary::after{content:"–";}
.faq .faq-body{padding-bottom:18px;color:var(--muted);font-size:.9rem;line-height:1.65;}

/* ---------- final cta ---------- */
.final-cta{background:var(--ink);border-radius:var(--radius-l);padding:54px 48px;text-align:center;color:var(--paper);}
.final-cta h2{font-size:clamp(1.45rem,2.4vw,1.9rem);margin-bottom:12px;}
.final-cta p{color:rgba(250,247,241,.72);max-width:500px;margin:0 auto 26px;line-height:1.55;}
.final-cta .hero-ctas{justify-content:center;margin-bottom:0;}
body[data-theme="dark"] .final-cta{background:var(--paper-raised);border:1px solid var(--line);color:var(--ink);}
body[data-theme="dark"] .final-cta p{color:var(--muted);}
body[data-theme="dark"] .final-cta .btn-primary{background:var(--ink);color:var(--paper);}
body[data-theme="dark"] .final-cta .btn-ghost{border-color:var(--line);color:var(--ink);}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:50px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px;}
.footer-brand .brand{margin-bottom:12px;}
.footer-brand p{color:var(--muted);font-size:.87rem;line-height:1.6;max-width:32ch;}
.footer-col h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:14px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{list-style:none;}
.footer-col a{font-size:.88rem;color:var(--ink);text-decoration:none;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid var(--line);padding-top:20px;font-size:.8rem;color:var(--muted);}

/* ---------- legal pages ---------- */
.legal-header{padding:52px 0 8px;}
.legal-header .eyebrow{margin-bottom:16px;}
.legal-header h1{font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:14px;}
.legal-header p{color:var(--muted);max-width:620px;line-height:1.6;}
.legal-updated{font-family:var(--font-mono);font-size:.78rem;color:var(--muted);margin-top:16px;display:inline-block;}
.legal-body{padding:36px 0 70px;}
.legal-layout{display:grid;grid-template-columns:220px 1fr;gap:48px;align-items:start;}
.legal-toc{position:sticky;top:96px;display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.legal-toc a{
  font-size:.84rem;color:var(--muted);text-decoration:none;padding:7px 0 7px 16px;border-left:2px solid transparent;margin-left:-1px;
}
.legal-toc a:hover{color:var(--ink);}
.legal-sections{display:flex;flex-direction:column;}
.legal-section{padding:26px 0;border-top:1px solid var(--line);}
.legal-section:first-child{border-top:none;padding-top:0;}
.legal-section h2{font-size:1.15rem;margin-bottom:12px;}
.legal-section p{color:var(--muted);font-size:.94rem;line-height:1.7;margin-bottom:12px;}
.legal-section p:last-child{margin-bottom:0;}
.legal-section ul{margin-bottom:12px;padding-left:0;display:flex;flex-direction:column;gap:8px;}
.legal-section li{list-style:none;padding-left:18px;position:relative;color:var(--muted);font-size:.94rem;line-height:1.6;}
.legal-section li::before{content:"–";position:absolute;left:0;color:var(--accent);}
.legal-section strong{color:var(--ink);font-weight:600;}
.legal-section a{color:var(--accent);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px;}
.legal-section a:hover{text-decoration-color:var(--accent);}

/* ---------- 404 ---------- */
.notfound{padding:76px 0 96px;text-align:center;}
.notfound .eyebrow{justify-content:center;}
.notfound h1{font-size:clamp(1.8rem,3.4vw,2.6rem);max-width:640px;margin:0 auto 16px;}
.notfound-lead{color:var(--muted);font-size:1.05rem;max-width:52ch;margin:0 auto 36px;line-height:1.6;}
.notfound .mock-wrap{margin:0 auto;max-width:380px;}
.notfound .hero-ctas{justify-content:center;margin:32px auto 0;}
.mock-badge.is-error{background:var(--accent-soft);color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr;}
  .mock-wrap{max-width:420px;margin:0 auto;}
  .pillars{grid-template-columns:1fr;}
  .steps,.pricing-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .nav-links{display:none;}
  .legal-layout{grid-template-columns:1fr;}
  .legal-toc{position:static;flex-direction:row;flex-wrap:wrap;border-left:none;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:8px;gap:4px 18px;}
  .legal-toc a{border-left:none;padding:2px 0;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;}
  .final-cta{padding:38px 22px;}
  .hero{padding:36px 0 20px;}
  .section{padding:52px 0;}
  .nav-inner{gap:8px;padding:12px 16px;}
  .brand-word{font-size:.96rem;}
  .nav-actions{gap:6px;}
  .nav-actions .btn-ghost{display:none;}
}