/* =========================================================
   DESIGN SYSTEM — Adán Mejías | Consultoría IA · PM · Mentoring
   Mobile-first, accesible, sin frameworks.
   ========================================================= */

:root {
  --bg: #FAFAF7;
  --bg-soft: #F2EFE8;
  --bg-card: #FFFFFF;
  --ink: #14181A;
  --ink-soft: #4A4F52;
  --ink-mute: #7A7E81;
  --line: #E2DED4;
  --line-soft: #EDEAE2;
  --accent: #2D4A3E;
  --accent-ink: #1F362C;
  --accent-soft: #DDE6E0;
  --gold: #B68A3C;
  --gold-soft: #F4EBD6;
  --danger: #A83232;
  --ok: #2E6B4A;

  --ff-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --ff-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.1875rem;
  --fs-lg: 1.5rem;
  --fs-xl: 2rem;
  --fs-2xl: 2.75rem;
  --fs-3xl: 3.5rem;

  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4.5rem;
  --sp-7: 6.5rem;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(20,24,26,0.04), 0 2px 8px rgba(20,24,26,0.04);
  --shadow-md: 0 4px 16px rgba(20,24,26,0.06), 0 12px 32px rgba(20,24,26,0.06);
  --container: 1180px;
  --container-narrow: 760px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ff-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--ff-serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 var(--sp-2);
  line-height: 1.15;
}
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: var(--fs-md); font-weight: 600; font-family: var(--ff-sans); letter-spacing: 0; }

p { margin: 0 0 var(--sp-2); color: var(--ink-soft); }
strong { color: var(--ink); font-weight: 600; }
small { color: var(--ink-mute); font-size: var(--fs-xs); }

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .2s ease, color .2s ease; }
a:hover { border-bottom-color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

ul, ol { padding-left: 1.2rem; color: var(--ink-soft); }
li { margin-bottom: 0.35rem; }

.eyebrow { display: inline-block; text-transform: uppercase; letter-spacing: 0.14em; font-size: var(--fs-xs); color: var(--gold); font-weight: 600; margin-bottom: var(--sp-2); }
.lead { font-size: var(--fs-md); color: var(--ink-soft); }
.muted { color: var(--ink-mute); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--sp-3); }
.container.narrow { max-width: var(--container-narrow); }
section { padding: var(--sp-6) 0; }
section.tight { padding: var(--sp-5) 0; }
section.flush { padding-top: 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto var(--sp-5); }

.grid { display: grid; gap: var(--sp-3); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 880px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(250,250,247,0.85); backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line-soft); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { font-family: var(--ff-serif); font-size: 1.25rem; font-weight: 500; color: var(--ink); border-bottom: none; letter-spacing: -0.01em; }
.brand small { display: block; font-family: var(--ff-sans); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); margin-top: 2px; }

.nav-links { display: flex; gap: var(--sp-3); align-items: center; list-style: none; padding: 0; margin: 0; }
.nav-links a { color: var(--ink); font-size: var(--fs-sm); font-weight: 500; border: 0; padding: 6px 2px; border-bottom: 2px solid transparent; }
.nav-links a:hover { color: var(--accent); border-bottom-color: var(--accent-soft); }
.nav-links a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }

.nav-toggle { display: none; background: transparent; border: 1px solid var(--line); padding: 8px 10px; border-radius: var(--radius-sm); cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 4px 0; }

@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-links { position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line-soft); padding: var(--sp-2) var(--sp-3) var(--sp-3); transform: translateY(-110%); transition: transform .25s ease; }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { display: block; padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line-soft); }
}

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; font-family: var(--ff-sans); font-weight: 600; font-size: var(--fs-sm); padding: 0.85rem 1.4rem; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease; text-decoration: none; white-space: nowrap; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-gold { background: var(--gold); color: #fff; border-color: var(--gold); }
.btn-gold:hover { background: #9c7530; border-color: #9c7530; }
.btn-sm { padding: 0.55rem 1rem; font-size: var(--fs-xs); }

.hero { padding: var(--sp-7) 0 var(--sp-6); background: radial-gradient(circle at 0% 0%, rgba(45,74,62,0.06), transparent 50%), radial-gradient(circle at 100% 100%, rgba(182,138,60,0.06), transparent 50%), var(--bg); }
.hero h1 { max-width: 18ch; }
.hero .lead { max-width: 56ch; margin-top: var(--sp-2); }
.hero-cta { display: flex; gap: var(--sp-2); margin-top: var(--sp-4); flex-wrap: wrap; }
.hero-trust { margin-top: var(--sp-5); display: flex; gap: var(--sp-4); align-items: center; flex-wrap: wrap; color: var(--ink-mute); font-size: var(--fs-sm); }
.hero-trust strong { color: var(--ink); }

.card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--sp-3); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); border-color: var(--accent-soft); }
.card h3 { margin-top: var(--sp-1); }
.card .icon { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; background: var(--accent-soft); color: var(--accent); margin-bottom: var(--sp-2); }
.card .icon svg { width: 22px; height: 22px; }
.card a.read-more { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600; font-size: var(--fs-sm); margin-top: var(--sp-2); }

.service-card { display: flex; flex-direction: column; gap: var(--sp-1); }
.service-card .price { font-family: var(--ff-serif); font-size: var(--fs-lg); color: var(--accent-ink); }
.service-card .price small { color: var(--ink-mute); font-family: var(--ff-sans); font-size: var(--fs-xs); margin-left: 4px; }

.steps { counter-reset: step; }
.steps .step { position: relative; padding-left: 56px; padding-bottom: var(--sp-3); border-left: 1px dashed var(--line); margin-left: 22px; }
.steps .step:last-child { border-left-color: transparent; }
.steps .step::before { counter-increment: step; content: counter(step); position: absolute; left: -22px; top: 0; width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: var(--accent); color: #fff; font-family: var(--ff-serif); font-size: 1.1rem; border-radius: 50%; }

.faq details { border-bottom: 1px solid var(--line); padding: var(--sp-2) 0; }
.faq details[open] summary { color: var(--accent); }
.faq summary { list-style: none; cursor: pointer; font-weight: 600; font-size: var(--fs-md); color: var(--ink); display: flex; justify-content: space-between; align-items: center; padding: 4px 0; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--ff-serif); font-size: 1.4rem; color: var(--accent); transition: transform .2s ease; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: var(--sp-1); color: var(--ink-soft); }

.cta-strip { background: var(--accent); color: #fff; border-radius: var(--radius); padding: var(--sp-5) var(--sp-4); text-align: center; }
.cta-strip h2 { color: #fff; }
.cta-strip p { color: rgba(255,255,255,0.85); }
.cta-strip .btn-primary { background: #fff; color: var(--accent-ink); border-color: #fff; }
.cta-strip .btn-primary:hover { background: var(--gold-soft); border-color: var(--gold-soft); }
.cta-strip .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.4); }
.cta-strip .btn-ghost:hover { border-color: #fff; color: #fff; }

.form { display: grid; gap: var(--sp-2); max-width: 620px; }
.form label { font-size: var(--fs-sm); font-weight: 600; color: var(--ink); }
.form input, .form textarea, .form select { font-family: var(--ff-sans); font-size: var(--fs-base); padding: 0.75rem 1rem; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); width: 100%; transition: border-color .15s ease, box-shadow .15s ease; }
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form textarea { min-height: 140px; resize: vertical; }
.form .check { display: flex; gap: 8px; align-items: flex-start; font-size: var(--fs-sm); color: var(--ink-soft); }
.form .check input { width: auto; margin-top: 4px; }
.form .submit-row { display: flex; gap: var(--sp-2); align-items: center; flex-wrap: wrap; }
.honeypot { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }

.site-footer { background: #14181A; color: #C8CDD0; padding: var(--sp-6) 0 var(--sp-4); margin-top: var(--sp-7); }
.site-footer h4 { color: #fff; margin-bottom: var(--sp-2); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.16em; font-family: var(--ff-sans); font-weight: 600; }
.site-footer a { color: #C8CDD0; border: 0; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--sp-4); }
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.5rem; font-size: var(--fs-sm); }
.footer-bottom { border-top: 1px solid #2A2F32; margin-top: var(--sp-4); padding-top: var(--sp-3); display: flex; justify-content: space-between; gap: var(--sp-2); flex-wrap: wrap; font-size: var(--fs-xs); color: #8A8F92; }

.logos { display: flex; flex-wrap: wrap; gap: var(--sp-4) var(--sp-5); align-items: center; justify-content: center; padding: var(--sp-3) 0; filter: grayscale(100%) opacity(0.65); }
.logos span { font-family: var(--ff-serif); font-size: 1.25rem; color: var(--ink); letter-spacing: 0.04em; }

.prose { max-width: 720px; margin: 0 auto; }
.prose p, .prose li { font-size: var(--fs-md); line-height: 1.75; color: var(--ink-soft); }
.prose h2 { margin-top: var(--sp-5); }
.prose h3 { margin-top: var(--sp-4); }
.prose blockquote { border-left: 3px solid var(--gold); margin: var(--sp-3) 0; padding: 0.5rem 0 0.5rem var(--sp-3); font-family: var(--ff-serif); font-size: var(--fs-md); color: var(--ink); font-style: italic; }

.pill { display: inline-block; padding: 4px 10px; border-radius: 999px; background: var(--bg-soft); color: var(--ink); font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.02em; }
.pill.gold { background: var(--gold-soft); color: #6E5418; }
.pill.green { background: var(--accent-soft); color: var(--accent-ink); }

.notice { background: var(--gold-soft); border: 1px solid #E5D2A2; border-radius: var(--radius); padding: var(--sp-2) var(--sp-3); font-size: var(--fs-sm); color: #604814; margin: var(--sp-3) 0; }

.cookies-banner { position: fixed; bottom: 16px; left: 16px; right: 16px; max-width: 560px; margin: 0 auto; background: var(--ink); color: #fff; padding: var(--sp-2) var(--sp-3); border-radius: var(--radius); box-shadow: var(--shadow-md); display: none; align-items: center; gap: var(--sp-2); z-index: 100; font-size: var(--fs-sm); flex-wrap: wrap; }
.cookies-banner.show { display: flex; }
.cookies-banner a { color: var(--gold-soft); }
.cookies-banner button { white-space: nowrap; }

.text-center { text-align: center; }
.mt-0 { margin-top: 0 !important; }
.mt-2 { margin-top: var(--sp-2); }
.mt-3 { margin-top: var(--sp-3); }
.mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); }
.mb-0 { margin-bottom: 0 !important; }
.flex { display: flex; gap: var(--sp-2); }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff; padding: 8px 12px; z-index: 999; }
.skip:focus { left: 8px; top: 8px; }

@media print {
  .site-header, .site-footer, .cookies-banner, .nav-toggle { display: none !important; }
  body { background: #fff; color: #000; }
}