/* ═══════════════════════════════════════════════════════════════
   Tala Estudio — hoja de estilos
   Paleta: negro cálido #1B1712 · marfil #F6F3EE · beige #E9E2D6 ·
   madera #9C7A54 (decor) / #6E5232 (AA) · oliva sutil #575C41
   Tipos: Marcellus (display serif) · Mulish (texto)
   ═══════════════════════════════════════════════════════════════ */

:root {
  --negro: #1B1712;
  --carbon: #2A241D;
  --blanco: #FFFFFF;
  --marfil: #F6F3EE;
  --beige: #E9E2D6;
  --madera: #9C7A54;
  --madera-oscura: #6E5232;
  --oliva: #575C41;
  --texto: #2A241D;
  --muted: #6E6659;
  --linea: rgba(27, 23, 18, .12);
  --linea-inv: rgba(255, 255, 255, .18);
  --shadow-1: 0 1px 2px rgba(27,23,18,.04), 0 10px 30px rgba(27,23,18,.07);
  --shadow-2: 0 2px 4px rgba(27,23,18,.05), 0 22px 52px rgba(27,23,18,.14);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --font-d: "Marcellus", Georgia, serif;
  --font-b: "Mulish", -apple-system, system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: light; }
body {
  margin: 0; font-family: var(--font-b); font-size: 16.5px; line-height: 1.7;
  color: var(--texto); background: var(--blanco);
  -webkit-font-smoothing: antialiased; overflow-x: clip;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--font-d); font-weight: 400; line-height: 1.12; margin: 0 0 .5em; color: var(--negro); text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.1rem); letter-spacing: .005em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
a { color: var(--madera-oscura); text-decoration: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
.wrap { width: min(1200px, 100% - 3rem); margin-inline: auto; }
:focus-visible { outline: 3px solid #7A5C33; outline-offset: 3px; border-radius: 2px; }
.oscuro :focus-visible, .topbar :focus-visible, .hero :focus-visible, footer :focus-visible,
.lightbox :focus-visible, .ig-fab:focus-visible { outline-color: #E8D9C3; }
input::placeholder, textarea::placeholder { color: #6E6659; opacity: 1; }

.skip { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--negro); color: #fff; padding: .7rem 1.2rem; }
.skip:focus { left: 0; }

.eyebrow {
  font-size: .74rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
  color: var(--madera-oscura); margin-bottom: 1rem;
}
.oscuro .eyebrow { color: #C9A876; }
.section { padding: clamp(4.5rem, 10vw, 8rem) 0; }
.section-note { color: var(--muted); max-width: 54ch; margin-bottom: 2.6rem; }
.oscuro { background: var(--negro); color: #EDE7DD; }
.oscuro h2, .oscuro h3 { color: #fff; }
.oscuro .section-note { color: #B5AC9E; }

/* veta: divisor con vetas de madera (firma de la casa) */
.veta { display: block; width: min(280px, 60%); margin: 0 auto; color: var(--madera); opacity: .55; }
.oscuro .veta { color: #C9A876; }

/* ── botones ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  font: 700 .8rem/1 var(--font-b); letter-spacing: .16em; text-transform: uppercase;
  padding: 1.15em 2.2em; border: 1.5px solid transparent; border-radius: 2px;
  cursor: pointer; white-space: nowrap;
  transition: background-color .3s var(--ease), color .3s var(--ease),
              border-color .3s var(--ease), transform .3s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(.98); }
.btn-negro { background: var(--negro); color: #fff; }
.btn-negro:hover { background: var(--madera-oscura); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-linea { background: transparent; color: var(--negro); border-color: var(--linea); }
.btn-linea:hover { border-color: var(--negro); }
.ico { width: 1.2em; height: 1.2em; flex: none; }
.ico-line path, .ico-line circle, .ico-line rect {
  fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
}

/* ── header ── */
.topbar { position: fixed; inset: 0 0 auto; z-index: 100; padding: 1.1rem 0; transition: background-color .35s var(--ease), box-shadow .35s var(--ease), padding .35s var(--ease); }
.topbar.clara { background: rgba(27,23,18,.9); backdrop-filter: blur(12px); padding: .7rem 0; box-shadow: 0 1px 0 var(--linea-inv); }
.topbar-in { display: flex; align-items: center; gap: 1rem; }
.brand { font-family: var(--font-d); font-size: 1.45rem; color: #fff; letter-spacing: .06em; white-space: nowrap; }
.brand-placa { background: #fff; border-radius: 4px; padding: .4rem .65rem; display: inline-flex; align-items: center; box-shadow: 0 2px 10px rgba(12,9,5,.25); }
.brand-placa img { height: 2.3rem; width: auto; display: block; }
.brand small { display: block; font-family: var(--font-b); font-size: .62rem; font-weight: 700; letter-spacing: .34em; text-transform: uppercase; color: #C9A876; margin-top: -2px; }
.nav { display: none; gap: 1.8rem; margin-left: auto; }
@media (min-width: 1020px) { .nav { display: flex; } }
.nav a { color: rgba(255,255,255,.88); font-weight: 600; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; transition: color .2s; }
.nav a:hover { color: #fff; }
.topbar .btn-cotiza { display: none; margin-left: auto; }
@media (min-width: 480px) { .topbar .btn-cotiza { display: inline-flex; padding: .85em 1.5em; } }
@media (min-width: 1020px) { .topbar .btn-cotiza { margin-left: 0; } }
.topbar .btn-cotiza { background: #fff; color: var(--negro); }
.topbar .btn-cotiza:hover { background: var(--beige); }
.menu-btn { display: grid; place-items: center; width: 2.7rem; height: 2.7rem; color: #fff; background: transparent; border: 1.5px solid rgba(255,255,255,.4); border-radius: 2px; cursor: pointer; flex: none; margin-left: auto; }
@media (min-width: 480px) { .menu-btn { margin-left: 0; } }
@media (min-width: 1020px) { .menu-btn { display: none; } }
.menu-movil { display: none; flex-direction: column; padding: 1rem 0 .8rem; }
.menu-movil.abierto { display: flex; }
.menu-movil a { padding: .7rem 0; color: rgba(255,255,255,.92); font-weight: 600; font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; border-bottom: 1px solid rgba(255,255,255,.1); }
.menu-movil a:last-child { border-bottom: 0; }
.menu-movil a.destacada { color: #C9A876; }

/* ── hero ── */
.hero { position: relative; isolation: isolate; min-height: 96svh; display: flex; color: #fff; overflow: hidden; }
.hero-img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: 50% 62%; }
.js .hero-img { animation: lentozoom 9s var(--ease) forwards; }
@keyframes lentozoom { from { transform: scale(1.07); } to { transform: scale(1); } }
.hero-shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(27,23,18,.72) 0, rgba(27,23,18,0) 190px),
    linear-gradient(80deg, rgba(27,23,18,.88) 0%, rgba(27,23,18,.5) 52%, rgba(27,23,18,.22) 82%),
    linear-gradient(0deg, rgba(27,23,18,.68) 0%, rgba(27,23,18,0) 40%);
}
.hero-in { display: flex; flex-direction: column; justify-content: center; padding: 8.5rem 0 4.5rem; }
.hero h1 { color: #fff; max-width: 17ch; text-shadow: 0 2px 20px rgba(12,9,5,.55); }
.hero-sub { font-size: clamp(1rem, 1.5vw, 1.15rem); color: rgba(255,255,255,.95); max-width: 46ch; margin: 1.2rem 0 2.4rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── quiénes somos ── */
.somos { display: grid; gap: 3rem; align-items: center; }
@media (min-width: 920px) { .somos { grid-template-columns: 1fr 1.1fr; } }
.somos-img { position: relative; }
.somos-img img { border-radius: 3px; box-shadow: var(--shadow-2); aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.somos-sello {
  position: absolute; right: -0.8rem; bottom: -1.2rem; background: var(--negro); color: #EDE7DD;
  font-family: var(--font-d); padding: 1rem 1.4rem; border-radius: 2px; box-shadow: var(--shadow-2);
}
.somos-sello strong { display: block; font-size: 1.5rem; color: #C9A876; font-weight: 400; }
.somos-sello span { font-size: .74rem; font-family: var(--font-b); letter-spacing: .14em; text-transform: uppercase; }
.pilares { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.8rem; }
.pilares li {
  font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--oliva); background: var(--marfil); border: 1px solid var(--linea);
  padding: .55em 1.1em; border-radius: 2px;
}

/* ── servicios ── */
.servicios { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr)); gap: 1.2rem; }
@media (min-width: 1000px) { .servicios { grid-template-columns: repeat(3, 1fr); } }
.servicio { position: relative; border-radius: 3px; overflow: hidden; background: var(--negro); box-shadow: var(--shadow-1); }
.servicio img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; opacity: .92; transition: transform .7s var(--ease), opacity .5s var(--ease); }
.servicio:hover img { transform: scale(1.05); opacity: .68; }
.servicio-tapa {
  position: absolute; inset: auto 0 0; padding: 1.4rem 1.5rem;
  background: linear-gradient(0deg, rgba(20,16,11,.97) 0%, rgba(20,16,11,.78) 55%, rgba(20,16,11,.3) 85%, transparent 100%);
  color: #fff;
}
.servicio-tapa h3 { color: #fff; margin-bottom: .25rem; text-shadow: 0 1px 8px rgba(12,9,5,.7); }
.servicio-tapa p { font-size: .88rem; color: rgba(255,255,255,.92); margin: 0; max-width: 40ch; }

/* ── portafolio ── */
.filtros { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.filtro {
  font: 700 .76rem var(--font-b); letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); background: transparent; border: 1.5px solid var(--linea); border-radius: 2px;
  padding: .7em 1.3em; cursor: pointer;
  transition: color .25s, border-color .25s, background-color .25s;
}
.filtro:hover { color: var(--negro); border-color: var(--negro); }
.filtro[aria-pressed="true"] { background: var(--negro); color: #fff; border-color: var(--negro); }
.porta { columns: 1; column-gap: 1.1rem; }
@media (min-width: 640px) { .porta { columns: 2; } }
@media (min-width: 1020px) { .porta { columns: 3; } }
.obra { break-inside: avoid; margin: 0 0 1.1rem; position: relative; border-radius: 3px; overflow: hidden; display: block; width: 100%; padding: 0; border: 0; background: var(--negro); cursor: zoom-in; }
.obra img { width: 100%; display: block; transition: transform .7s var(--ease), opacity .5s var(--ease); }
.obra:hover img { transform: scale(1.045); opacity: .8; }
.obra .pie {
  position: absolute; inset: auto 0 0; padding: 2.6rem 1.2rem .9rem;
  background: linear-gradient(0deg, rgba(20,16,11,.85), transparent);
  color: #fff; font-size: .82rem; letter-spacing: .06em;
  opacity: 0; transition: opacity .4s var(--ease);
}
.obra:hover .pie, .obra:focus-visible .pie { opacity: 1; }
.obra[hidden] { display: none; }

/* ── materiales ── */
.materiales { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr)); gap: 1.2rem; }
.material { background: #241F19; border: 1px solid rgba(255,255,255,.09); border-radius: 3px; overflow: hidden; }
.material img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }
.material-body { padding: 1.5rem 1.5rem 1.7rem; }
.material-body h3 { color: #fff; margin-bottom: 1rem; }
.material dl { display: grid; gap: .55rem; margin: 0; }
.material .fila { display: grid; grid-template-columns: 7.5rem 1fr; gap: .8rem; font-size: .86rem; }
@media (max-width: 400px) { .material .fila { grid-template-columns: 1fr; gap: .15rem; } }
.material dt { color: #C9A876; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: .72rem; padding-top: .15em; }
.material dd { margin: 0; color: #CFC7BA; }

/* ── por qué ── */
.porque { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr)); gap: .9rem; }
.porque li { display: flex; gap: .8rem; align-items: baseline; background: var(--marfil); border: 1px solid var(--linea); border-radius: 3px; padding: 1.1rem 1.2rem; font-size: .95rem; }
.porque .ico { color: var(--oliva); transform: translateY(3px); }

/* ── proceso ── */
.proceso { counter-reset: paso; display: grid; gap: 0; max-width: 780px; margin-inline: auto; }
.paso { position: relative; display: grid; grid-template-columns: 4.5rem 1fr; gap: 1.4rem; padding: 1.4rem 0; }
.paso + .paso { border-top: 1px solid var(--linea); }
.paso-num { font-family: var(--font-d); font-size: 2.6rem; color: var(--beige); line-height: 1; -webkit-text-stroke: 1px var(--madera); }
.paso h3 { margin-bottom: .25rem; font-size: 1.15rem; }
.paso p { margin: 0; color: var(--muted); font-size: .93rem; max-width: 52ch; }

/* ── testimonios ── */
.testimonios { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr)); gap: 1.2rem; }
.testimonio { background: #fff; border: 1px solid var(--linea); border-radius: 3px; padding: 1.8rem 1.6rem; box-shadow: var(--shadow-1); display: flex; flex-direction: column; margin: 0; }
.estrellas { color: var(--madera-oscura); letter-spacing: .14em; margin-bottom: .9rem; font-size: .9rem; }
.testimonio blockquote { margin: 0 0 1.4rem; font-size: .95rem; color: var(--texto); font-style: italic; }
.testimonio figcaption { display: flex; align-items: center; gap: .9rem; margin-top: auto; }
.avatar { display: grid; place-items: center; width: 2.8rem; height: 2.8rem; border-radius: 50%; font: 700 .95rem var(--font-b); color: #fff; flex: none; }
.testimonio figcaption strong { display: block; font-size: .92rem; color: var(--negro); }
.testimonio figcaption span { font-size: .8rem; color: var(--muted); }
.nota-testi { font-size: .78rem; color: var(--muted); margin-top: 1.6rem; }

/* ── CTA final ── */
.final { text-align: center; position: relative; isolation: isolate; overflow: hidden; }
.final h2 { max-width: 22ch; margin-inline: auto; }
.final .btn { margin-top: 1.6rem; }

/* ── footer ── */
.footer { background: var(--negro); color: #B5AC9E; padding: 3.5rem 0 2rem; }
.footer-in { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit, minmax(min(14rem, 100%), 1fr)); margin-bottom: 2.5rem; }
.footer .brand small { color: #C9A876; }
.footer h3 { color: #fff; font-size: .8rem; font-family: var(--font-b); font-weight: 700; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 1rem; }
.footer ul { display: grid; gap: .5rem; font-size: .9rem; }
.footer a:hover { color: #fff; }
.footer a { color: #B5AC9E; }
.footer .pend { color: #9C9284; font-style: italic; }
.footer-small { border-top: 1px solid var(--linea-inv); padding-top: 1.4rem; display: flex; flex-wrap: wrap; gap: .5rem 2rem; justify-content: space-between; font-size: .78rem; color: #9C9284; }
.footer-small p { margin: 0; }
.footer-small a { color: inherit; text-decoration: underline; }

/* ── modal cotización ── */
.modal { width: min(540px, calc(100vw - 2rem)); max-height: calc(100svh - 2rem); border: none; border-radius: 4px; padding: 0; box-shadow: 0 30px 90px rgba(12,9,5,.5); }
.modal::backdrop { background: rgba(20,16,11,.65); backdrop-filter: blur(4px); }
.modal form { padding: 1.8rem clamp(1.3rem, 4vw, 2.2rem) 2rem; }
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.modal-head h2 { font-size: 1.6rem; margin: 0; }
.modal-sub { color: var(--muted); font-size: .9rem; margin: .4rem 0 1.4rem; }
.modal-x { border: none; background: var(--marfil); color: var(--muted); width: 2.4rem; height: 2.4rem; border-radius: 50%; font-size: 1.5rem; line-height: 1; cursor: pointer; flex: none; }
.modal-x:hover { background: var(--beige); color: var(--negro); }
.campo { display: grid; gap: .35rem; margin-bottom: 1rem; }
.campo label { font-size: .8rem; font-weight: 700; letter-spacing: .06em; color: var(--negro); }
.campo input, .campo select, .campo textarea {
  font: 500 .95rem var(--font-b); color: var(--negro); width: 100%; min-width: 0;
  background: var(--marfil); border: 1.5px solid transparent; border-radius: 3px; padding: .75em .9em;
  transition: border-color .2s, background-color .2s;
}
.campo textarea { min-height: 6.5rem; resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { background: #fff; border-color: var(--madera-oscura); outline: none; }
.campo [aria-invalid="true"] { border-color: #C0392B; background: #FBF1EF; }
.err { color: #A93226; font-size: .8rem; margin: 0; }
.form-err { margin-top: .6rem; font-weight: 600; }
.ok { color: var(--oliva); font-size: .9rem; font-weight: 600; margin-top: .6rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: .8rem; margin-top: 1.4rem; flex-wrap: wrap; }
@media (max-width: 540px) { .modal-actions .btn { flex: 1; white-space: normal; padding-inline: 1.2em; } }

/* ── lightbox ── */
.lightbox { width: min(1100px, calc(100vw - 1.5rem)); max-height: calc(100svh - 1.5rem); border: none; background: transparent; padding: 0; }
.lightbox::backdrop { background: rgba(15,12,8,.9); }
.lightbox figure { margin: 0; position: relative; }
.lightbox img { width: 100%; max-height: calc(100svh - 7rem); object-fit: contain; border-radius: 3px; }
.lightbox figcaption { color: #EDE7DD; text-align: center; padding: .9rem 3rem; font-size: .9rem; letter-spacing: .04em; }
.lb-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  display: grid; place-items: center; width: 2.9rem; height: 2.9rem; border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.4); background: rgba(20,16,11,.55); color: #fff; cursor: pointer;
  transition: background-color .25s, border-color .25s;
}
.lb-btn:hover { background: rgba(20,16,11,.85); border-color: #fff; }
.lb-prev { left: .7rem; }
.lb-next { right: .7rem; }
.lb-x { position: absolute; top: .7rem; right: .7rem; transform: none; }
.lb-contador { position: absolute; left: .9rem; bottom: .65rem; color: #B5AC9E; font-size: .8rem; letter-spacing: .1em; }

/* ── flotante Instagram ── */
.ig-fab {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 90;
  display: grid; place-items: center; width: 3.5rem; height: 3.5rem;
  background: var(--negro); color: #fff; border-radius: 50%;
  box-shadow: 0 10px 28px rgba(20,16,11,.4);
  transition: transform .25s var(--ease), background-color .25s var(--ease);
}
.ig-fab:hover { transform: scale(1.08); background: var(--madera-oscura); }
.ig-fab svg { width: 1.7rem; height: 1.7rem; }

/* ── reveals / QA / reduced motion ── */
.js .reveal { opacity: 0; }
.js .reveal.in { animation: rise .9s var(--ease) forwards; animation-delay: calc(var(--i, 0) * 80ms); }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.qa .reveal { opacity: 1 !important; animation: none !important; transform: none !important; }
.qa .hero { min-height: 640px; }
.qa .hero-img { animation: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; animation: none; }
  .js .hero-img { animation: none; }
  .btn, .servicio img, .obra img, .filtro { transition: none; }
}