/* =========================================================
   MIS NÚMEROS CLAROS — sistema de diseño
   Concepto: libro contable + recibo de papel.
   Paleta: verde tapa de libro contable, papel crudo, sello rojo ladrillo, dorado moneda.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,600;0,9..144,700;1,9..144,500&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --ink:#22303A;
  --paper:#F4EFDF;
  --paper-dark:#EAE1C7;
  --paper-line:#D9CFAE;
  --ledger:#1E3A2F;
  --ledger-light:#2C5443;
  --gold:#C99A3C;
  --white:#FFFDF7;

  --display:'Fraunces', serif;
  --body:'Inter', sans-serif;
  --mono:'IBM Plex Mono', monospace;

  --radius: 4px;
  --container: 1120px;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }

a{ color: inherit; text-decoration: none; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1,h2,h3,h4{
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 .5em;
  color: var(--ledger);
}

h1{ font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; }
h2{ font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3{ font-size: 1.3rem; }

p{ margin:0 0 1em; }

.kicker{
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var( --ledger-light);
  font-weight: 600;
  display:inline-block;
  margin-bottom: 14px;
}

.lead{
  font-size: 1.15rem;
  color: #3E4B45;
  max-width: 58ch;
}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--mono);
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: .02em;
  padding: 14px 26px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn:focus-visible{ outline: 3px solid var(--gold); outline-offset: 2px; }

.btn-primary{
  background: var( --ledger-light);
  color: var(--white);
}
.btn-primary:hover{ background: var( --ledger-light); }

.btn-ghost{
  background: transparent;
  color: var(--ledger);
  border-color: var(--ledger);
}
.btn-ghost:hover{ background: var(--ledger); color: var(--white); }

.btn-light{
  background: var(--paper);
  color: var(--ledger);
  border-color: var(--paper);
}
.btn-light:hover{ background: var(--white); }

/* ---------- Header ---------- */
.site-header{
  background: var(--ledger);
  color: var(--paper);
  position: sticky;
  top:0;
  z-index: 50;
  border-bottom: 3px solid var(--gold);
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content: space-between;
  height: 76px;
}
.logo{
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--white);
  display:flex;
  align-items:baseline;
  gap: 6px;
}
.logo .dot{ color: var(--gold); }

.nav{
  display:flex;
  align-items:center;
  gap: 30px;
}
.nav a{
  font-family: var(--mono);
  font-size: .85rem;
  letter-spacing:.03em;
  color: var(--paper-dark);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}
.nav a:hover, .nav a.active{
      color: var(--gold);
  border-color: var(--gold);
}
.nav-cta{
  font-family: var(--mono);
  font-size: .82rem;
  font-weight:600;
  background: var(--gold);
  color: var(--ledger);
  padding: 9px 18px;
  border-radius: var(--radius);
}
.nav-cta:hover{ 

    background: var(--white);

    
}

.menu-toggle{
  display:none;
  background:none;
  border:none;
  color: var(--white);
  font-size: 1.6rem;
  cursor:pointer;
}

@media (max-width: 860px){
  .nav{
    position:absolute;
    top: 76px; left:0; right:0;
    background: var(--ledger);
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 24px 26px;
    gap: 16px;
    display:none;
    border-bottom: 3px solid var(--gold);
  }
  .nav.open{ display:flex; }
  .menu-toggle{ display:block; }
}

/* ---------- Hero: papel de libro contable ---------- */
.hero{
  position: relative;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0px, transparent 43px,
      var(--paper-line) 43px, var(--paper-line) 44px
    ),
    var(--paper);
  padding: 90px 0 70px;
  overflow:hidden;
}

@media (min-width: 768px) {
    .hero::before {
        content: "";
        position: absolute;
        left: 70px;
        top: 0;
        bottom: 0;
        width: 2px;
        background: var(--ledger-light);
        opacity: .35;
    }
}
.hero-inner{
  position:relative;
  max-width: 720px;
}
.hero h1{ margin-bottom: 20px; }
.hero h1 em{
  font-style: normal;
  color: var( --ledger-light);
  position:relative;
}
.hero-ctas{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-top: 34px;
}
.hero-note{
  margin-top: 22px;
  font-family: var(--mono);
  font-size: .82rem;
  color: #5B6B62;
}

/* ---------- Secciones generales ---------- */
section{ padding: 78px 0; }
.section-alt{ background: var(--white); }
.section-dark{ background: var(--ledger); color: var(--paper); }
.section-dark h2{ color: var(--white); }
.section-head{
  max-width: 640px;
  margin-bottom: 46px;
}

/* ---------- Puntos de dolor ---------- */
.pain-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.pain-card{
  background: var(--white);
  border: 1px solid var(--paper-line);
  border-top: 4px solid var( --ledger-light);
  border-radius: var(--radius);
  padding: 30px 26px;
}
.pain-card .num{
  font-family: var(--mono);
  color: var(--gold);
  font-size: .85rem;
  font-weight:600;
  display:block;
  margin-bottom: 10px;
}
@media (max-width: 860px){ .pain-grid{ grid-template-columns: 1fr; } }

/* ---------- Recibos (productos) — elemento firma ---------- */
.receipt-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
@media (max-width: 900px){ .receipt-grid{ grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; } }

.receipt{
  background: var(--white);
  padding: 30px 26px 40px;
  position: relative;
  box-shadow: 0 10px 24px rgba(30,58,47,.08);
  transform: rotate(var(--tilt, -1deg));
  transition: transform .25s ease, box-shadow .25s ease;
  border: 1px solid #E7E0CB;
}
.receipt:nth-child(2){ --tilt: .8deg; }
.receipt:nth-child(3){ --tilt: -.6deg; }
.receipt:hover{ transform: rotate(0deg) translateY(-6px); box-shadow: 0 18px 34px rgba(30,58,47,.16); }

.receipt::before{
  content:"";
  position:absolute;
  top:-8px; left:0; right:0;
  height: 16px;
  background-image: radial-gradient(circle at 10px 8px, var(--paper) 5px, transparent 5.5px);
  background-size: 20px 16px;
  background-repeat: repeat-x;
}
.receipt::after{
  content:"";
  position:absolute;
  bottom:-9px; left:0; right:0;
  height: 18px;
  background:
    linear-gradient(135deg, var(--white) 50%, transparent 50%),
    linear-gradient(-135deg, var(--white) 50%, transparent 50%);
  background-size: 18px 18px;
  background-position: bottom left;
  background-repeat: repeat-x;
}
.receipt-no{
  font-family: var(--mono);
  font-size: .72rem;
  color: #8A8368;
  letter-spacing: .05em;
  display:block;
  margin-bottom: 14px;
}
.receipt h3{ margin-bottom: 8px; }
.receipt p{ font-size: .95rem; color:#4A554E; }
.receipt-price{
  font-family: var(--mono);
  font-weight:600;
  color: var( --ledger-light);
  font-size: 1.05rem;
  margin: 16px 0 18px;
  display:block;
  border-top: 1px dashed var(--paper-line);
  padding-top: 16px;
}
.receipt .btn{ width:100%; justify-content:center; }

/* ---------- Freebie banda ---------- */
.freebie-banner{
  background: var(--ledger);
  color: var(--paper);
  border-radius: var(--radius);
  padding: 50px 46px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow:hidden;
}
.freebie-banner::before{
  content:"GRATIS";
  position:absolute;
  right: -18px; top: 14px;
  font-family: var(--mono);
  font-size: 5.5rem;
  font-weight:700;
  color: rgba(244,239,223,.05);
  letter-spacing: .05em;
}
.freebie-banner h2{ color: var(--white); margin-bottom:10px; }
.freebie-banner p{ color: var(--paper-dark); max-width: 46ch; }
.freebie-copy{ position:relative; z-index:1; }
.freebie-cta{ position:relative; z-index:1; flex-shrink:0; }
@media (max-width: 760px){
  .freebie-banner{ flex-direction: column; align-items:flex-start; padding: 38px 26px; }
}

/* ---------- Blog cards ---------- */
.blog-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
@media (max-width: 900px){ .blog-grid{ grid-template-columns: 1fr; } }
.blog-card{
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  overflow:hidden;
  transition: box-shadow .2s ease, transform .2s ease;
  display:flex; flex-direction:column;
}
.blog-card:hover{ box-shadow: 0 14px 26px rgba(30,58,47,.1); transform: translateY(-4px); }
.blog-card-body{ padding: 22px 22px 26px; display:flex; flex-direction:column; flex:1; }
.blog-tag{
  font-family: var(--mono);
  font-size: .72rem;
  color: var( --ledger-light);
  text-transform: uppercase;
  letter-spacing:.06em;
  margin-bottom: 10px;
}
.blog-card h3{ font-size: 1.15rem; margin-bottom: 10px; }
.blog-card p{ font-size:.92rem; color:#4A554E; flex:1; }
.blog-read{
  font-family: var(--mono);
  font-size: .82rem;
  font-weight:600;
  color: var(--ledger);
  margin-top: 12px;
  display:inline-flex; align-items:center; gap:6px;
}
.blog-read svg{ transition: transform .2s ease; }
.blog-card:hover .blog-read svg{ transform: translateX(4px); }

/* ---------- Newsletter / footer ---------- */
.newsletter{
  background: var(--white);
  border: 1px dashed var(--gold);
  border-radius: var(--radius);
  padding: 40px;
  display:flex;
  gap: 30px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
}
.newsletter h3{ margin-bottom:6px; }
.newsletter p{ margin:0; color:#4A554E; font-size:.92rem; }
.newsletter-form{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.newsletter-form input[type="email"]{
  font-family: var(--body);
  font-size: .95rem;
  padding: 13px 16px;
  border: 1px solid #C9BFA0;
  border-radius: var(--radius);
  min-width: 240px;
  background: var(--paper);
  color: var(--ink);
}
.newsletter-form input[type="email"]:focus-visible{ outline: 2px solid var( --ledger-light); }
.form-msg{
  font-family: var(--mono);
  font-size: .82rem;
  margin-top: 10px;
  color: var(--ledger);
}

footer{
  background: var(--ledger);
  color: var(--paper-dark);
  padding: 50px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(244,239,223,.15);
}
.footer-grid h4{ color: var(--white); font-size: .95rem; margin-bottom:14px; }
.footer-grid a, .footer-grid p{ font-size: .88rem; color: var(--paper-dark); display:block; margin-bottom: 8px; }
.footer-grid a:hover{ color: var(--gold); }
.footer-bottom{
  padding-top: 22px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: 10px;
  font-family: var(--mono);
  font-size: .78rem;
  color: #8FA294;
}
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr; } }

/* ---------- Utilidades de página interna (blog/artículo/sobre mí) ---------- */
.page-hero{
  background: var(--ledger);
  color: var(--paper);
  padding: 60px 0 50px;
}
.page-hero .kicker{ color: var(--gold); }
.page-hero h1{ color: var(--white); margin-bottom: 10px;}
.page-hero p{ color: var(--paper-dark); max-width: 60ch; }

.article{
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 90px;
}
.article h2{ margin-top: 1.4em; }
.article p{ font-size: 1.05rem; color: #33403A; }
.article .meta{
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--ledger-light);
  margin-bottom: 20px;
  display:block;
}
.article blockquote{
  border-left: 3px solid var(--gold);
  margin: 30px 0;
  padding: 4px 0 4px 22px;
  font-family: var(--display);
  font-size: 1.2rem;
  color: var(--ledger);
}
.article ul{ padding-left: 20px; }
.article li{ margin-bottom: 8px; }

.about-grid{
  display:grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 50px;
  align-items:center;
}
@media (max-width: 860px){ .about-grid{ grid-template-columns: 1fr; } }
.about-photo{
  aspect-ratio: 4/5;
  background: var(--paper-dark);
  border-radius: var(--radius);
  border: 6px solid var(--white);
  box-shadow: 0 14px 30px rgba(30,58,47,.15);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--mono);
  color: #8A8368;
  font-size: .85rem;
  text-align:center;
  padding: 20px;
}

/* Reveal on scroll */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  *{ scroll-behavior: auto !important; }
}