/* ============================================================
   Demo "PLOMADA — Reformas" — construcción y oficios
   Estilo "constructora sólida / plano de obra": neutros de
   piedra, azul de plano, ámbar de madera, retícula de fondo,
   tipografía slab (con remate) y bloques rectangulares.
   CSS independiente: no comparte sistema con las otras demos.
   ============================================================ */

:root {
  --o-bg: #f4f1ec;
  --o-paper: #fffdf8;
  --o-ink: #20201d;
  --o-text: #57534b;
  --o-line: #ded7ca;
  --o-blue: #22405a;
  --o-blue-d: #17304a;
  --o-amber: #d98a2b;
  --o-amber-d: #98520b;
  --o-max: 1160px;
  --o-slab: "Rockwell", "Rockwell Nova", "Roboto Slab", "Bookman Old Style", "Palatino Linotype", Georgia, serif;
  --o-sans: "Helvetica Neue", Arial, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--o-bg);
  color: var(--o-text);
  font-family: var(--o-sans);
  font-size: 1.02rem;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--o-blue); }

h1, h2, h3 {
  font-family: var(--o-slab);
  color: var(--o-ink);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 .45em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.3rem, 1.6rem + 3.6vw, 4rem); }
h2 { font-size: clamp(1.8rem, 1.35rem + 2.2vw, 2.7rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }

.o-wrap { width: 100%; max-width: var(--o-max); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
.o-section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.o-section--paper { background: var(--o-paper); }
.o-section--blue { background: var(--o-blue); color: #d7dee6; }
.o-section--blue h2, .o-section--blue h3 { color: #fff; }
.o-narrow { max-width: 720px; }
.o-lead { font-size: 1.14rem; color: var(--o-text); }
.o-section--blue .o-lead { color: #c3cdd8; }

.o-kicker {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--o-sans); font-size: .72rem; font-weight: 800;
  letter-spacing: .2em; text-transform: uppercase; color: var(--o-amber-d);
  margin-bottom: 1rem;
}
.o-kicker::before { content: ""; width: 10px; height: 10px; background: var(--o-amber); flex: none; }
.o-section--blue .o-kicker { color: #f0b163; }

/* retícula de plano */
.o-blueprint {
  background-image:
    linear-gradient(rgba(34,64,90,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,64,90,.06) 1px, transparent 1px);
  background-size: 26px 26px;
}
.o-section--blue.o-blueprint {
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(var(--o-blue), var(--o-blue));
  background-size: 26px 26px, 26px 26px, 100% 100%;
}

/* ---- botones ---- */
.o-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  white-space: nowrap;
  font-family: var(--o-sans); font-weight: 700; font-size: .92rem;
  letter-spacing: .04em; text-transform: uppercase;
  padding: .9rem 1.6rem; border: 2px solid transparent; border-radius: 2px;
  text-decoration: none; cursor: pointer;
  transition: transform .1s ease, background .12s ease, color .12s ease;
}
.o-btn:hover { transform: translateY(-2px); }
.o-btn--primary { background: var(--o-blue); color: #fff; }
.o-btn--primary:hover { background: var(--o-blue-d); }
.o-btn--amber { background: var(--o-amber); color: var(--o-ink); }
.o-btn--amber:hover { background: var(--o-amber-d); color: #fff; }
.o-btn--ghost { border-color: var(--o-ink); color: var(--o-ink); }
.o-btn--ghost:hover { background: var(--o-ink); color: #fff; }
.o-section--blue .o-btn--ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.o-section--blue .o-btn--ghost:hover { background: #fff; color: var(--o-blue); }
.o-btn-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }

/* ---- navegación ---- */
.o-nav {
  position: sticky; top: 40px; z-index: 30;
  background: var(--o-paper);
  border-bottom: 3px solid var(--o-blue);
}
.o-nav__row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.o-brand { font-family: var(--o-slab); font-weight: 700; font-size: 1.55rem; color: var(--o-ink); text-decoration: none; display: inline-flex; align-items: baseline; gap: .5rem; }
.o-brand span { font-family: var(--o-sans); font-size: .62rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--o-text); }
.o-nav__links { display: flex; gap: .1rem; list-style: none; margin: 0; padding: 0; }
.o-nav__links a { font-family: var(--o-sans); font-size: .8rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--o-text); text-decoration: none; padding: .5rem .8rem; }
.o-nav__links a:hover { color: var(--o-blue); }
.o-nav__right { display: flex; align-items: center; gap: 1rem; }
.o-nav__tel { font-family: var(--o-slab); font-size: 1.15rem; color: var(--o-ink); text-decoration: none; white-space: nowrap; }
.o-nav__toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--o-line); background: transparent; cursor: pointer; }
.o-nav__toggle span, .o-nav__toggle span::before, .o-nav__toggle span::after { content: ""; display: block; width: 18px; height: 2px; background: var(--o-ink); margin: 0 auto; position: relative; }
.o-nav__toggle span::before { position: absolute; top: -6px; }
.o-nav__toggle span::after { position: absolute; top: 6px; }
@media (max-width: 940px) {
  .o-nav__toggle { display: block; }
  .o-nav__tel { display: none; }
  .o-nav__links {
    position: absolute; left: 0; right: 0; top: 100%; flex-direction: column;
    background: var(--o-paper); border-bottom: 1px solid var(--o-line);
    padding: .4rem clamp(1.1rem,4vw,2rem) 1rem; display: none;
  }
  .o-nav__links.open { display: flex; }
  .o-nav__links a { display: flex; align-items: center; min-height: 48px; } /* zonas táctiles sin solaparse */
  .o-nav__links a { padding: .8rem .4rem; }
}

/* ---- hero: cabecera con marca de plano ---- */
.o-hero { padding-block: clamp(3rem, 7vw, 5.5rem); }
.o-hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.o-hero h1 { max-width: 16ch; font-size: clamp(2.7rem, 1.7rem + 4.2vw, 4.8rem); }
.o-hero h1::after {
  content: ""; display: block; width: 84px; height: 8px;
  margin-top: .6rem; background: var(--o-amber);
}
.o-hero p { max-width: 46ch; font-size: 1.16rem; }
.o-hero__zone { margin-top: 1.5rem; font-size: .82rem; letter-spacing: .05em; text-transform: uppercase; color: var(--o-text); }
.o-hero__media { position: relative; }
.o-hero__media::before {
  content: ""; position: absolute; left: 0; right: 0; top: -16px;
  height: 8px; border: 1px solid var(--o-blue); border-bottom: 0;
}
@media (max-width: 860px) { .o-hero__grid { grid-template-columns: 1fr; } .o-hero__media { order: -1; margin-top: 16px; } }

/* ---- placeholders: lámina técnica ---- */
.o-ph {
  background:
    linear-gradient(rgba(34,64,90,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,64,90,.08) 1px, transparent 1px),
    #e9e5dc;
  background-size: 22px 22px;
  border: 1px solid var(--o-line);
  display: grid; place-items: center; text-align: center; padding: 1rem;
  color: var(--o-text); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase;
  min-height: 180px; position: relative;
}
.o-ph::after {
  content: ""; position: absolute; right: 8px; bottom: 8px;
  width: 64px; height: 22px;
  border: 1px solid rgba(34,64,90,.45);
  z-index: 1;
}
.o-ph small { display: block; letter-spacing: .02em; text-transform: none; opacity: .7; margin-top: .3rem; }

/* foto real: cubre el hueco; el cajetín técnico y la etiqueta quedan encima */
.o-ph--photo { padding: 0; overflow: hidden; }
.o-ph--photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }

.o-ph[data-tag]::before {
  content: attr(data-tag);
  position: absolute; top: 0; left: 0;
  background: var(--o-blue); color: #fff;
  font-size: .64rem; font-weight: 800; letter-spacing: .12em;
  padding: .3rem .6rem;
  z-index: 1;
}
.o-ph[data-tag="ANTES"]::before { background: #625e56; }
.o-ph[data-tag="DESPUÉS"]::before { background: var(--o-amber); color: var(--o-ink); }

/* ---- servicios ---- */
.o-grid { display: grid; gap: 1px; background: var(--o-line); border: 1px solid var(--o-line); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.o-serv { background: var(--o-paper); padding: 1.5rem; border-top: 3px solid var(--o-blue); }
.o-serv__ic {
  display: inline-grid; place-items: center;
  width: 42px; height: 42px; margin-bottom: .7rem;
  border: 2px solid var(--o-blue);
  color: var(--o-blue);
  font-family: var(--o-sans); font-size: .78rem; font-weight: 800;
}
.o-serv h3 { font-size: 1.1rem; margin-bottom: .25rem; }
.o-serv p { margin: 0; font-size: .92rem; color: var(--o-text); }

/* ---- proyectos: antes / después ---- */
.o-filter { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.8rem 0 2.2rem; }
.o-filter button {
  font: inherit; font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  padding: .5rem 1rem; border: 1px solid var(--o-line); background: var(--o-paper); color: var(--o-text); cursor: pointer; border-radius: 2px;
  transition: border-color .15s ease, color .15s ease;
}
.o-filter button.active { background: var(--o-blue); color: #fff; border-color: var(--o-blue); }
@media (hover: hover) {
  .o-filter button:hover { border-color: var(--o-blue); color: var(--o-blue); }
}
.o-projects { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.o-project { background: var(--o-paper); border: 1px solid var(--o-line); }
.o-project[hidden] { display: none; }
.o-project__ba { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 4px solid var(--o-blue); }
.o-project__ba .o-ph { min-height: 170px; border: 0; border-right: 1px solid var(--o-line); }
.o-project__ba .o-ph:last-child { border-right: 0; }
.o-project__body { padding: 1.4rem 1.5rem 1.6rem; border-top: 1px solid var(--o-line); }
.o-project__body h3 { font-size: 1.12rem; margin-bottom: .8rem; }
.o-project__body dl { margin: 0; display: grid; gap: .45rem; }
.o-project__body dt { font-size: .66rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--o-amber-d); }
.o-project__body dd { margin: 0 0 .35rem; font-size: .92rem; color: var(--o-text); }
@media (hover: hover) {
  .o-project { transition: transform .16s ease, box-shadow .16s ease; }
  .o-project:hover { transform: translateY(-4px); box-shadow: 8px 8px 0 rgba(34,64,90,.16); }
}

/* ---- empresa: stats ---- */
.o-split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 3.5rem); align-items: center; }
@media (max-width: 820px) { .o-split { grid-template-columns: 1fr; } }
.o-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--o-line); border: 1px solid var(--o-line); }
.o-stat { background: var(--o-paper); padding: 1.4rem; text-align: center; }
.o-stat b { display: block; font-family: var(--o-slab); font-size: 2.4rem; color: var(--o-blue); line-height: 1; }
.o-stat span { font-size: .82rem; color: var(--o-text); text-transform: uppercase; letter-spacing: .05em; }

/* ---- proceso ---- */
.o-steps { display: grid; gap: 1px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.15); grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.o-step { background: var(--o-blue); padding: 1.5rem; }
.o-step b { font-family: var(--o-slab); font-size: 2rem; color: var(--o-amber); display: block; line-height: 1; margin-bottom: .5rem; }
.o-step h3 { font-size: 1.05rem; color: #fff; margin-bottom: .3rem; }
.o-step p { margin: 0; font-size: .9rem; color: #c3cdd8; }

/* ---- FAQ ---- */
.o-faq { display: grid; gap: 1px; background: var(--o-line); border: 1px solid var(--o-line); }
.o-faq details { background: var(--o-paper); padding: 0 1.3rem; }
.o-faq summary {
  cursor: pointer; list-style: none; padding: 1.1rem 0;
  font-family: var(--o-slab); font-size: 1.08rem; color: var(--o-ink);
  display: flex; justify-content: space-between; gap: 1rem;
}
.o-faq summary::-webkit-details-marker { display: none; }
.o-faq summary::after { content: "+"; color: var(--o-amber-d); font-family: var(--o-sans); font-weight: 700; }
.o-faq details[open] summary::after { content: "\2013"; }
.o-faq details p { margin: 0 0 1.2rem; font-size: .95rem; color: var(--o-text); }

/* ---- contacto ---- */
.o-contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 3rem); }
@media (max-width: 820px) { .o-contact { grid-template-columns: 1fr; } }
.o-form label { display: block; font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--o-text); margin-top: 1rem; }
.o-form input, .o-form select, .o-form textarea {
  width: 100%; margin-top: .35rem; padding: .75rem .9rem; font: inherit;
  background: #fff; border: 1px solid var(--o-line); color: var(--o-ink); border-radius: 2px;
}
.o-form textarea { resize: vertical; }
.o-form .o-row { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
@media (max-width: 480px) { .o-form .o-row { grid-template-columns: 1fr; } }
.o-note { font-size: .84rem; color: var(--o-text); margin-top: 1rem; }
.o-info { list-style: none; margin: 0; padding: 0; }
.o-info li { padding: .8rem 0; border-top: 1px solid var(--o-line); display: flex; gap: .8rem; }
.o-info li:first-child { border-top: 0; }
.o-info .lbl { font-size: .66rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--o-amber-d); min-width: 96px; }
.o-tel-big { font-family: var(--o-slab); font-size: 1.8rem; color: var(--o-ink); text-decoration: none; }

/* ---- pie ---- */
.o-footer { background: var(--o-ink); color: #a9a49a; padding-block: 3rem; font-size: .92rem; }
.o-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; }
.o-footer h4 { font-family: var(--o-slab); color: #fff; font-size: 1rem; margin: 0 0 .8rem; }
.o-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.o-footer a { color: #a9a49a; text-decoration: none; }
.o-footer a:hover { color: var(--o-amber); }
.o-footer .o-brand { color: #fff; }
.o-footer__legal { margin-top: 2.2rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.14); display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; justify-content: space-between; font-size: .84rem; }
@media (max-width: 720px) { .o-footer__grid { grid-template-columns: 1fr; gap: 1.6rem; } }

/* móvil estrecho: liberar sitio en la cabecera */
@media (max-width: 540px) {
  .o-nav__right, .o-brand span { display: none; }
}

/* foco acotado al contenido de esta demo; el marco conserva el suyo */
.o-nav :focus-visible,
main :focus-visible,
.o-footer :focus-visible { outline: 3px solid var(--o-amber); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }