/* cerrajeroslp.com — hoja unica. Sin frameworks, sin dependencias. */
:root {
  --ink: #16181C;
  --steel: #2E3A46;
  --brass: #B07A18;
  --brass-dark: #8C5F10;
  --concrete: #E3DED3;
  --paper: #F7F4EE;
  --muted: #6A6459;
  --body: #383229;
  --max-w: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Work Sans', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.62;
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}
h1, h2, h3, h4 { font-family: 'Archivo Black', system-ui, sans-serif; line-height: 1.16; margin: 0 0 0.5em; font-weight: 400; }
h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.95rem); margin-top: 1.5em; }
h3 { font-size: 1.12rem; margin-top: 1.4em; }
p { margin: 0 0 1.1em; max-width: 68ch; }
a { color: var(--brass); }
img { max-width: 100%; height: auto; }
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 8px; top: 8px; background: var(--ink); color: var(--paper); padding: 10px 14px; z-index: 99; }

/* Header */
.site-header { position: sticky; top: 0; background: var(--paper); border-bottom: 1px solid rgba(22,24,28,0.12); z-index: 30; }
.header-inner { display: flex; justify-content: space-between; align-items: center; padding: 13px 0; gap: 18px; flex-wrap: wrap; }
.logo { font-family: 'Archivo Black', sans-serif; font-size: 1.08rem; text-decoration: none; color: var(--ink); white-space: nowrap; }
.logo span { color: var(--brass); }
.main-nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 0.87rem; font-weight: 600; }
.main-nav a { color: var(--ink); text-decoration: none; }
.main-nav a:hover, .main-nav a.active { color: var(--brass); }
.header-cta { padding: 9px 15px; font-size: 0.86rem; white-space: nowrap; }

/* Botones */
.btn { display: inline-block; text-decoration: none; font-weight: 600; padding: 14px 26px; border-radius: 3px; border: 2px solid transparent; transition: transform .12s ease, background .12s ease; cursor: pointer; font-family: inherit; font-size: 1rem; }
.btn:active { transform: scale(.98); }
.btn-cta { background: var(--brass); color: #fff; }
.btn-cta:hover { background: var(--brass-dark); }
.btn-call { background: var(--ink); color: var(--paper); }
.btn-call:hover { background: #000; }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-large { font-size: 1.05rem; padding: 16px 32px; }

/* Breadcrumb */
.breadcrumb { font-size: .85rem; color: var(--muted); padding: 16px 0 0; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--brass); }

/* Hero */
.hero { padding: 48px 0 52px; border-bottom: 1px solid rgba(22,24,28,0.12); }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
.eyebrow-note { color: var(--steel); font-weight: 600; margin-bottom: .6em; font-size: .95rem; }
.hero-lede { font-size: 1.14rem; color: var(--body); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 1.4em; }
.hero-card { background: var(--ink); color: var(--paper); padding: 26px 24px; border-radius: 4px; }
.hero-card h2 { color: var(--paper); font-size: 1.1rem; margin: 0 0 .7em; }
.hero-card p { color: #c9c2b6; font-size: .95rem; }
.hero-card ul { list-style: none; margin: 0; padding: 0; }
.hero-card li { padding: 9px 0 9px 22px; border-bottom: 1px solid rgba(247,244,238,.14); position: relative; font-size: .95rem; color: #ded7cb; }
.hero-card li:last-child { border-bottom: 0; }
.hero-card li::before { content: ""; position: absolute; left: 0; top: 17px; width: 9px; height: 9px; border: 2px solid var(--brass); border-radius: 50%; }

/* Page hero (internas) */
.page-hero { padding: 24px 0 36px; border-bottom: 1px solid rgba(22,24,28,0.12); }
.page-hero .kicker { color: var(--steel); font-weight: 600; font-size: .92rem; margin-bottom: .5em; }
.page-hero p.lede { font-size: 1.1rem; color: var(--body); max-width: 70ch; }
.page-hero .hero-actions { margin-top: 1.2em; }

/* Secciones */
.section { padding: 48px 0; border-bottom: 1px solid rgba(22,24,28,0.12); }
.section-tight { padding: 34px 0; }
.section-dark { background: var(--ink); color: var(--paper); border-bottom: 0; }
.section-dark h2, .section-dark h3 { color: var(--paper); }
.section-dark p, .section-dark li { color: #cdc6ba; }
.section-band { background: var(--concrete); }
.answer { font-size: 1.08rem; font-weight: 600; color: var(--ink); border-left: 4px solid var(--brass); padding-left: 16px; margin-bottom: 1.3em; max-width: 70ch; }

/* Servicios (home) */
.service-list { border-top: 1px solid rgba(22,24,28,0.15); }
.service-row { padding: 22px 0; border-bottom: 1px solid rgba(22,24,28,0.15); display: grid; grid-template-columns: 320px 1fr; gap: 24px; }
.service-row h3 { margin: 0; }
.service-row h3 a { color: var(--ink); text-decoration: none; }
.service-row h3 a:hover { color: var(--brass); }
.service-row p { margin: 0; color: var(--body); }

/* Listas / tablas */
.article-body { max-width: 72ch; }
.article-body ul, .article-body ol { padding-left: 22px; max-width: 68ch; }
.article-body li { margin-bottom: .5em; }
.article-meta { color: var(--muted); font-size: .9rem; margin-bottom: 2em; }
table.data { border-collapse: collapse; width: 100%; margin: 1.4em 0 1.6em; font-size: .95rem; }
table.data th, table.data td { border: 1px solid rgba(22,24,28,0.18); padding: 10px 13px; text-align: left; vertical-align: top; }
table.data th { background: var(--concrete); font-family: 'Work Sans', sans-serif; font-weight: 700; }
.table-wrap { overflow-x: auto; }
.table-note { font-size: .85rem; color: var(--muted); margin-top: -1em; }
.callout { background: var(--concrete); border-left: 4px solid var(--brass); padding: 18px 22px; margin: 1.6em 0; }
.callout p { margin: 0; max-width: none; }
.callout p + p { margin-top: .8em; }

/* Zonas */
.zones-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; }
.zones-grid li { padding: 10px 0; border-bottom: 1px solid rgba(22,24,28,0.15); font-weight: 500; font-size: .95rem; }

/* Pasos */
.process-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 24px; }
.process-list li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; align-items: start; }
.process-num { font-family: 'Archivo Black', sans-serif; font-size: 1.35rem; color: var(--brass); }
.process-list h3 { margin: 0 0 .3em; }
.process-list p { margin: 0; }

/* FAQ */
.faq-list { border-top: 1px solid rgba(22,24,28,0.15); }
details { border-bottom: 1px solid rgba(22,24,28,0.15); padding: 17px 0; }
summary { font-weight: 600; cursor: pointer; list-style: none; position: relative; padding-right: 30px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 0; font-family: 'Archivo Black', sans-serif; color: var(--brass); }
details[open] summary::after { content: "\2013"; }
details p { margin-top: 12px; color: var(--body); }

/* Tarjetas de guias */
.guide-grid { display: grid; gap: 22px; border-top: 1px solid rgba(22,24,28,0.15); padding-top: 22px; }
.guide-card { padding-bottom: 22px; border-bottom: 1px solid rgba(22,24,28,0.15); }
.guide-card h3 { margin: 0 0 .3em; }
.guide-card h3 a { color: var(--ink); text-decoration: none; }
.guide-card h3 a:hover { color: var(--brass); }
.guide-card p { color: var(--body); margin-bottom: .4em; }

/* Contacto */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 14px; font-family: inherit; font-size: 1rem;
  border: 1px solid rgba(22,24,28,.28); border-radius: 3px; background: #fff; color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--brass); outline-offset: 1px; }
.form-note { font-size: .85rem; color: var(--muted); }
.hp { position: absolute; left: -9999px; }
.form-status { font-weight: 600; margin-top: 12px; }

/* CTA final */
.cta-final { border-bottom: none; }
.cta-final p { font-size: 1.08rem; color: var(--body); }

/* Footer */
.site-footer { padding: 34px 0 96px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.footer-grid h4 { font-family: 'Archivo Black', sans-serif; font-weight: 400; font-size: .95rem; margin: 0 0 10px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 6px; }
.footer-grid a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.footer-grid a:hover { color: var(--brass); }
.footer-grid p { font-size: .92rem; color: var(--muted); }
.footer-legal { border-top: 1px solid rgba(22,24,28,.15); padding-top: 18px; }
.footer-legal p { margin: 0 0 4px; font-size: .84rem; color: var(--muted); }

/* WhatsApp flotante */
.wa-float {
  position: fixed; right: 16px; bottom: 82px; z-index: 40;
  width: 56px; height: 56px; border-radius: 50%; background: #25D366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(0,0,0,.28);
}
.wa-float svg { width: 30px; height: 30px; fill: #fff; }

/* Barra fija de llamada (movil) */
.call-bar { display: none; }
@media (max-width: 860px) {
  .call-bar {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
    background: var(--ink); color: var(--paper); text-decoration: none;
    align-items: center; justify-content: center; gap: 10px;
    padding: 15px 16px; font-weight: 700; font-size: 1.02rem;
    box-shadow: 0 -2px 12px rgba(0,0,0,.22);
  }
  .call-bar svg { width: 19px; height: 19px; fill: var(--brass); }
}
@media (min-width: 861px) { .wa-float { bottom: 24px; } }

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

/* Responsive */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .service-row { grid-template-columns: 1fr; gap: 6px; }
  .zones-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero { padding: 30px 0 38px; }
  .section { padding: 36px 0; }
  .header-inner { gap: 10px; }
  .logo { order: 1; }
  .header-cta { order: 2; margin-left: auto; font-size: .82rem; padding: 9px 14px; }
  .header-cta .tel-num { display: none; }
  .nav-toggle { display: block; order: 3; }
  .main-nav { display: none; order: 4; width: 100%; flex-direction: column; gap: 0; padding: 4px 0 8px; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 2px; border-top: 1px solid rgba(22,24,28,.10); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }