/* ============================================================
   ContratoIA — Sistema de diseño
   Notaría moderna: tinta verde-profunda, papel cálido, sello latón
   ============================================================ */

:root {
  /* Paleta */
  --ink:        #1B2B26;   /* tinta — texto principal, fondos oscuros */
  --ink-soft:   #3A4D47;   /* tinta suave — texto secundario */
  --paper:      #FBFAF6;   /* papel — fondo base */
  --paper-2:    #F2EFE7;   /* papel sombreado — secciones alternas */
  --seal:       #B08D57;   /* latón/sello — acento principal */
  --seal-deep:  #8C6D3F;   /* latón profundo — hover */
  --validated:  #2F6B4F;   /* verde validado — estados "hecho" */
  --line:       #E2DDD1;   /* hairlines */
  --line-soft:  #EDE9DF;
  --white:      #FFFFFF;
  --danger:     #B23A48;

  /* Tipografía */
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body:    'Inter', system-ui, sans-serif;
  --doc:     'Source Serif 4', Georgia, serif;

  /* Escala / espacio */
  --maxw: 1140px;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 18px 50px -22px rgba(27, 43, 38, .35);
  --shadow-soft: 0 6px 24px -12px rgba(27, 43, 38, .22);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  font-weight: 400;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--seal); }

.eyebrow {
  font-family: var(--display);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--seal-deep);
  margin-bottom: 1rem;
}

/* ---------- Botones ---------- */
.btn {
  font-family: var(--display);
  font-weight: 500;
  font-size: .98rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: .72rem 1.3rem;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, box-shadow .2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: #243a33; box-shadow: var(--shadow-soft); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--ink); background: rgba(27,43,38,.03); }
.btn--lg { padding: .95rem 1.7rem; font-size: 1.05rem; }
.btn--block { width: 100%; }
.link {
  background: none; border: none; cursor: pointer;
  font-family: var(--display); font-weight: 500; color: var(--seal-deep);
  border-bottom: 1px solid var(--seal); padding-bottom: 1px;
}
.link:hover { color: var(--ink); border-color: var(--ink); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251,250,246,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: .9rem 1.5rem;
  display: flex; align-items: center; gap: 2rem;
}
.brand {
  font-family: var(--display); font-weight: 700; font-size: 1.25rem;
  display: flex; align-items: center; gap: .5rem; letter-spacing: -.02em;
}
.brand__mark {
  width: 16px; height: 20px; border-radius: 2px;
  background: var(--ink);
  box-shadow: inset 0 0 0 2px var(--paper), inset 0 0 0 3px var(--ink);
  position: relative;
}
.brand__mark::after {
  content: ''; position: absolute; right: -3px; bottom: -3px;
  width: 9px; height: 9px; border-radius: 50%; background: var(--seal);
  border: 2px solid var(--paper);
}
.brand__ai { color: var(--seal); }
.nav__links { display: flex; gap: 1.6rem; margin-left: auto; font-size: .95rem; }
.nav__links a { color: var(--ink-soft); transition: color .2s; }
.nav__links a:hover { color: var(--ink); }
.nav__cta { margin-left: 0; }

@media (max-width: 760px) {
  .nav__links { display: none; }
  .nav__cta { margin-left: auto; }
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) 1.5rem;
}
.hero__grid {
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.hero__title {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.3rem, 5.2vw, 3.7rem);
  line-height: 1.05; letter-spacing: -.025em; margin-bottom: 1.4rem;
}
.hero__lead {
  font-size: 1.15rem; color: var(--ink-soft); max-width: 30rem; margin-bottom: 2rem;
}
.hero__actions { display: flex; gap: .9rem; flex-wrap: wrap; margin-bottom: 1.1rem; }
.hero__note {
  font-family: var(--display); font-size: .9rem; color: var(--ink-soft);
}

/* Documento papel (hero + preview) */
.hero__doc { display: flex; justify-content: center; }
.paper {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
  width: 100%; max-width: 400px;
  overflow: hidden;
  position: relative;
}
.hero__doc .paper { transform: rotate(1.4deg); }
.paper::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(var(--seal), var(--seal-deep));
}
.paper__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.3rem; border-bottom: 1px solid var(--line-soft);
  background: var(--paper);
}
.paper__type {
  font-family: var(--display); font-weight: 600; font-size: .92rem; letter-spacing: -.01em;
}
.seal {
  font-family: var(--display); font-size: .72rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--validated);
  border: 1.5px solid var(--validated); border-radius: 100px;
  padding: .18rem .6rem;
  transform: rotate(-4deg);
}
.seal--draft { color: var(--seal-deep); border-color: var(--seal); }
.paper__body { padding: 1.3rem 1.4rem 1.7rem; font-family: var(--doc); font-size: .9rem; color: var(--ink); }
.ln { margin-bottom: .55rem; line-height: 1.5; }
.ln--title {
  font-weight: 600; font-size: .78rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--seal-deep);
  margin: 1.1rem 0 .5rem;
}
.ln--muted { color: #B9B3A4; }
.ln strong { font-weight: 600; }

/* ---------- Secciones ---------- */
.section {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6rem) 1.5rem;
}
.section--alt {
  max-width: none; background: var(--paper-2);
  border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft);
}
.section--alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section__head { margin-bottom: 2.8rem; max-width: 36rem; }
.section__title {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem); line-height: 1.1; letter-spacing: -.02em;
}

/* ---------- Tipos ---------- */
.types {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.type-card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.5rem;
  cursor: pointer; text-align: left;
  transition: transform .18s ease, box-shadow .2s ease, border-color .2s;
  display: flex; flex-direction: column; gap: .5rem;
}
.type-card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-soft); border-color: var(--seal);
}
.type-card__icon {
  font-size: 1.4rem; width: 44px; height: 44px; border-radius: 10px;
  background: var(--paper-2); display: flex; align-items: center; justify-content: center;
  margin-bottom: .4rem;
}
.type-card__name { font-family: var(--display); font-weight: 600; font-size: 1.08rem; }
.type-card__desc { font-size: .92rem; color: var(--ink-soft); }
.types__more { margin-top: 1.6rem; color: var(--ink-soft); font-size: .98rem; }

@media (max-width: 860px) { .types { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .types { grid-template-columns: 1fr; } }

/* ---------- Pasos ---------- */
.steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; list-style: none;
}
.step { border-top: 2px solid var(--ink); padding-top: 1rem; }
.step__n {
  font-family: var(--display); font-weight: 700; font-size: 1.6rem; color: var(--seal);
  display: block; margin-bottom: .5rem;
}
.step h3 { font-family: var(--display); font-weight: 600; font-size: 1.1rem; margin-bottom: .35rem; }
.step p { font-size: .94rem; color: var(--ink-soft); }
@media (max-width: 820px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 440px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Precios ---------- */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; align-items: start; }
.plan {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem; position: relative;
  display: flex; flex-direction: column; gap: 1.1rem;
}
.plan--feature {
  border-color: var(--ink); box-shadow: var(--shadow);
  background: var(--ink); color: var(--paper);
}
.plan--feature .plan__feats li { color: #D8DDD9; }
.plan--feature .plan__feats li::before { color: var(--seal); }
.plan__tag {
  position: absolute; top: -.8rem; left: 1.8rem;
  font-family: var(--display); font-size: .72rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
  background: var(--seal); color: var(--ink); padding: .28rem .7rem; border-radius: 100px;
}
.plan__name { font-family: var(--display); font-weight: 500; font-size: 1rem; color: var(--seal-deep); }
.plan--feature .plan__name { color: var(--seal); }
.plan__price { font-family: var(--display); font-weight: 700; font-size: 2.1rem; line-height: 1; letter-spacing: -.02em; }
.plan__price span { display: block; font-size: .82rem; font-weight: 400; color: var(--ink-soft); margin-top: .4rem; letter-spacing: 0; }
.plan--feature .plan__price span { color: #B9C2BD; }
.plan__feats { list-style: none; display: flex; flex-direction: column; gap: .6rem; flex: 1; }
.plan__feats li { font-size: .94rem; color: var(--ink-soft); padding-left: 1.5rem; position: relative; }
.plan__feats li::before { content: '✓'; position: absolute; left: 0; color: var(--validated); font-weight: 700; }
@media (max-width: 860px) { .pricing { grid-template-columns: 1fr; max-width: 26rem; margin: 0 auto; } }

/* ---------- FAQ ---------- */
.faq { display: flex; flex-direction: column; gap: .2rem; max-width: 44rem; }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary {
  font-family: var(--display); font-weight: 500; font-size: 1.08rem;
  padding: 1.2rem 0; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: '+'; color: var(--seal); font-size: 1.5rem; font-weight: 400; }
.faq__item[open] summary::after { content: '–'; }
.faq__item p { padding-bottom: 1.3rem; color: var(--ink-soft); max-width: 40rem; }

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--ink); color: var(--paper); text-align: center;
  padding: clamp(3.5rem, 8vw, 6rem) 1.5rem;
}
.cta-final h2 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(1.9rem, 4vw, 2.8rem); letter-spacing: -.02em; margin-bottom: .8rem;
}
.cta-final p { color: #C4CCC8; margin-bottom: 2rem; font-size: 1.1rem; }

/* ---------- Footer ---------- */
.footer { background: var(--paper-2); border-top: 1px solid var(--line-soft); }
.footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 2.5rem 1.5rem;
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 2rem; align-items: start;
}
.brand--footer { font-size: 1.15rem; margin-bottom: .5rem; }
.footer__tag { color: var(--ink-soft); font-size: .95rem; }
.footer__legal { color: #9A9587; font-size: .82rem; line-height: 1.6; }
@media (max-width: 680px) { .footer__inner { grid-template-columns: 1fr; } }

/* ============================================================
   GENERADOR (modal)
   ============================================================ */
.generator { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.generator[hidden] { display: none; }
.generator__overlay { position: absolute; inset: 0; background: rgba(27,43,38,.55); backdrop-filter: blur(4px); }
.generator__panel {
  position: relative; background: var(--paper); border-radius: var(--radius);
  width: 100%; max-width: 980px; max-height: 90vh; overflow: hidden;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.5);
  display: flex; flex-direction: column;
  animation: pop .25s ease;
}
@keyframes pop { from { opacity: 0; transform: scale(.97) translateY(8px); } to { opacity: 1; transform: none; } }
.generator__close {
  position: absolute; top: 1rem; right: 1rem; z-index: 5;
  background: var(--white); border: 1px solid var(--line); border-radius: 8px;
  width: 34px; height: 34px; cursor: pointer; font-size: 1rem; color: var(--ink-soft);
}
.generator__close:hover { color: var(--ink); border-color: var(--ink); }

.progress {
  display: flex; gap: .4rem; padding: 1.3rem 1.6rem; border-bottom: 1px solid var(--line-soft);
  background: var(--white);
}
.progress__step {
  font-family: var(--display); font-size: .82rem; font-weight: 500; color: #B6B0A2;
  padding: .3rem .8rem; border-radius: 100px; display: flex; align-items: center; gap: .4rem;
}
.progress__step::before {
  content: counter(step); counter-increment: step;
  width: 18px; height: 18px; border-radius: 50%; background: var(--line);
  color: var(--white); font-size: .7rem; display: flex; align-items: center; justify-content: center;
}
.progress { counter-reset: step; }
.progress__step.is-active { color: var(--ink); }
.progress__step.is-active::before { background: var(--ink); }
.progress__step.is-done { color: var(--validated); }
.progress__step.is-done::before { background: var(--validated); content: '✓'; }

.generator__body { display: grid; grid-template-columns: 1.1fr .9fr; overflow: hidden; flex: 1; min-height: 0; }
.generator__form { padding: 1.8rem; overflow-y: auto; }
.generator__preview { background: var(--paper-2); padding: 1.8rem; overflow-y: auto; border-left: 1px solid var(--line-soft); }
.paper--live { transform: none; max-width: none; box-shadow: var(--shadow-soft); }

@media (max-width: 760px) {
  .generator__body { grid-template-columns: 1fr; }
  .generator__preview { display: none; }
}

/* Formulario interno */
.gf__title { font-family: var(--display); font-weight: 600; font-size: 1.4rem; letter-spacing: -.02em; margin-bottom: .4rem; }
.gf__sub { color: var(--ink-soft); font-size: .96rem; margin-bottom: 1.5rem; }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-family: var(--display); font-weight: 500; font-size: .88rem; margin-bottom: .4rem; }
.field input, .field textarea, .field select {
  width: 100%; font-family: var(--body); font-size: .98rem; color: var(--ink);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: .7rem .85rem; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--seal); box-shadow: 0 0 0 3px rgba(176,141,87,.15);
}
.field textarea { resize: vertical; min-height: 90px; }
.field__row { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
@media (max-width: 460px) { .field__row { grid-template-columns: 1fr; } }

.gf__nav { display: flex; justify-content: space-between; gap: .8rem; margin-top: 1.8rem; padding-top: 1.4rem; border-top: 1px solid var(--line-soft); }

/* Selección de tipo dentro del generador */
.type-pick { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.type-pick__btn {
  text-align: left; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: .9rem 1rem; cursor: pointer;
  display: flex; gap: .7rem; align-items: center; transition: border-color .2s, background .2s;
}
.type-pick__btn:hover, .type-pick__btn.is-sel { border-color: var(--seal); background: #fff; }
.type-pick__btn.is-sel { box-shadow: 0 0 0 2px var(--seal) inset; }
.type-pick__ic { font-size: 1.3rem; }
.type-pick__name { font-family: var(--display); font-weight: 500; font-size: .95rem; }
.type-pick__sep { text-align: center; color: var(--ink-soft); font-size: .9rem; margin: 1.2rem 0; position: relative; }
.type-pick__sep::before, .type-pick__sep::after { content: ''; position: absolute; top: 50%; width: 38%; height: 1px; background: var(--line); }
.type-pick__sep::before { left: 0; } .type-pick__sep::after { right: 0; }
@media (max-width: 460px) { .type-pick { grid-template-columns: 1fr; } }

/* Resultado / contrato generado */
.result__doc {
  font-family: var(--doc); font-size: .94rem; line-height: 1.7; color: var(--ink);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 1.6rem; max-height: 340px; overflow-y: auto; white-space: pre-wrap;
}
.result__doc.is-locked { max-height: 240px; -webkit-mask-image: linear-gradient(180deg,#000 55%,transparent); mask-image: linear-gradient(180deg,#000 55%,transparent); }

/* Estado cargando */
.loading { display: flex; flex-direction: column; align-items: center; gap: 1rem; padding: 3rem 1rem; text-align: center; }
.loading__spin { width: 38px; height: 38px; border: 3px solid var(--line); border-top-color: var(--seal); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading p { font-family: var(--display); color: var(--ink-soft); }

/* Paywall */
.paywall {
  margin-top: 1.2rem; background: var(--ink); color: var(--paper);
  border-radius: var(--radius); padding: 1.4rem 1.5rem; text-align: center;
}
.paywall h4 { font-family: var(--display); font-weight: 600; font-size: 1.15rem; margin-bottom: .4rem; }
.paywall p { color: #C4CCC8; font-size: .92rem; margin-bottom: 1rem; }
.paywall .btn--primary { background: var(--seal); color: var(--ink); }
.paywall .btn--primary:hover { background: var(--seal-deep); }

.banner { padding: .85rem 1.1rem; border-radius: var(--radius-sm); font-size: .9rem; margin-bottom: 1.3rem; display: flex; gap: .6rem; align-items: flex-start; }
.banner--free { background: rgba(47,107,79,.1); color: var(--validated); border: 1px solid rgba(47,107,79,.25); }
.banner--paid { background: rgba(176,141,87,.12); color: var(--seal-deep); border: 1px solid rgba(176,141,87,.3); }

.toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--paper); padding: .8rem 1.3rem; border-radius: 100px;
  font-family: var(--display); font-size: .92rem; z-index: 200; box-shadow: var(--shadow);
  animation: pop .25s ease;
}

/* ============================================================
   Páginas SEO (contenido por tipo de contrato)
   ============================================================ */
.lp-hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) 1.5rem 2rem;
}
.lp-hero__crumb { font-family: var(--display); font-size: .85rem; color: var(--ink-soft); margin-bottom: 1.2rem; }
.lp-hero__crumb a { color: var(--seal-deep); }
.lp-hero h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.1rem); line-height: 1.08; letter-spacing: -.025em;
  max-width: 24ch; margin-bottom: 1rem;
}
.lp-hero__lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 42rem; margin-bottom: 1.6rem; }
.lp-hero__cta { display: flex; gap: .8rem; flex-wrap: wrap; align-items: center; }
.lp-hero__note { font-family: var(--display); font-size: .9rem; color: var(--ink-soft); margin-top: 1rem; }

.lp-body { max-width: 46rem; margin: 0 auto; padding: 1.5rem 1.5rem 4rem; }
.lp-body h2 {
  font-family: var(--display); font-weight: 600; font-size: clamp(1.4rem, 2.6vw, 1.8rem);
  letter-spacing: -.02em; margin: 2.4rem 0 .9rem;
}
.lp-body h3 { font-family: var(--display); font-weight: 600; font-size: 1.12rem; margin: 1.5rem 0 .5rem; }
.lp-body p { color: var(--ink); margin-bottom: 1rem; }
.lp-body ul { margin: 0 0 1.2rem 1.2rem; color: var(--ink); }
.lp-body li { margin-bottom: .5rem; }
.lp-body strong { font-weight: 600; }

.lp-callout {
  background: var(--ink); color: var(--paper); border-radius: var(--radius);
  padding: 1.8rem; margin: 2.4rem 0; text-align: center;
}
.lp-callout h3 { font-family: var(--display); font-weight: 600; font-size: 1.3rem; margin-bottom: .5rem; color: var(--paper); }
.lp-callout p { color: #C4CCC8; margin-bottom: 1.2rem; }
.lp-callout .btn--primary { background: var(--seal); color: var(--ink); }
.lp-callout .btn--primary:hover { background: var(--seal-deep); }

.lp-related { border-top: 1px solid var(--line); margin-top: 2.5rem; padding-top: 1.5rem; }
.lp-related h2 { margin-top: 0; }
.lp-related__links { display: flex; flex-wrap: wrap; gap: .6rem; }
.lp-related__links a {
  font-family: var(--display); font-size: .92rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: 100px; padding: .4rem .9rem;
  transition: border-color .2s, background .2s;
}
.lp-related__links a:hover { border-color: var(--seal); background: var(--white); }