/* Taller de Cerrajería Norma · hoja de estilos
 * ---------------------------------------------------------------
 * Dirección "Banco de taller": papel cálido, tinta acero y latón.
 * Una sola familia (Fraunces), self-hosted.
 * Lo que se cambia fácil está en :root (colores, espaciados, tamaños).
 */

@font-face { font-family: 'Fraunces'; font-weight: 400; font-style: normal; font-display: swap; src: url(fonts/fraunces-400.woff2) format('woff2'); }
@font-face { font-family: 'Fraunces'; font-weight: 400; font-style: italic; font-display: swap; src: url(fonts/fraunces-400i.woff2) format('woff2'); }
@font-face { font-family: 'Fraunces'; font-weight: 600; font-style: normal; font-display: swap; src: url(fonts/fraunces-600.woff2) format('woff2'); }
@font-face { font-family: 'Fraunces'; font-weight: 600; font-style: italic; font-display: swap; src: url(fonts/fraunces-600i.woff2) format('woff2'); }
@font-face { font-family: 'Fraunces'; font-weight: 800; font-style: normal; font-display: swap; src: url(fonts/fraunces-800.woff2) format('woff2'); }

:root {
  /* Colores (contrastes calculados en brief.md) */
  --papel: #f4efe5;
  --papel-2: #ebe4d6;      /* franja alternada */
  --tinta: #1e2a36;        /* acero */
  --suave: #55606b;        /* 5,6:1 sobre papel */
  --laton: #d9a441;        /* solo relleno y detalle, o texto sobre noche */
  --laton-osc: #7a5211;    /* enlaces sobre papel, 6,0:1 */
  --noche: #1e2a36;
  --sobre-noche: #f4efe5;
  --suave-noche: #a9b3bd;  /* 6,9:1 sobre noche */
  --filete: color-mix(in oklab, var(--tinta) 16%, transparent);

  /* Medidas */
  --gutter: clamp(20px, 5vw, 72px);
  --ancho: 1240px;
  --seccion: clamp(88px, 13vw, 176px);
  --radio: 6px;

  /* Escala tipográfica */
  --t-hero: clamp(2.7rem, 1.2rem + 6.4vw, 6.6rem);
  --t-h2: clamp(2.1rem, 1.3rem + 3.4vw, 4.2rem);
  --t-h3: clamp(1.3rem, 1.1rem + .8vw, 1.75rem);
  --t-cuerpo: clamp(1.06rem, 1rem + .25vw, 1.2rem);

  --ease: cubic-bezier(.2, .8, .2, 1);
  --resorte: cubic-bezier(.34, 1.56, .64, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font: 400 var(--t-cuerpo)/1.6 'Fraunces', Georgia, 'Times New Roman', serif;
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { font-weight: 600; line-height: 1.04; letter-spacing: -.02em; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
em { font-style: italic; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--laton); outline-offset: 3px; border-radius: 2px; }

.saltar { position: absolute; left: 12px; top: -60px; z-index: 50; background: var(--tinta); color: var(--papel); padding: 10px 16px; border-radius: var(--radio); }
.saltar:focus { top: 12px; }

/* ---------- piezas comunes ---------- */
.antetitulo {
  font-size: .82rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--laton-osc); margin-bottom: 1.1rem;
  display: inline-flex; align-items: center; gap: .7em;
}
.antetitulo::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.antetitulo--claro { color: var(--laton); }

.encabezado { margin-bottom: clamp(40px, 6vw, 80px); }
.encabezado h2 { font-size: var(--t-h2); }

.boton {
  --b-fondo: var(--tinta); --b-tinta: var(--papel);
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 52px; padding: 0 1.6em;
  background: var(--b-fondo); color: var(--b-tinta);
  font: 600 1.02rem/1 'Fraunces', serif; text-decoration: none;
  border: 0; border-radius: var(--radio); cursor: pointer;
  box-shadow: 0 1px 0 color-mix(in oklab, var(--tinta) 30%, transparent), 0 10px 24px -14px color-mix(in oklab, var(--tinta) 70%, transparent);
  transition: transform .45s var(--resorte), box-shadow .45s var(--ease), background-color .3s var(--ease);
}
.boton::after { content: "→"; transition: transform .45s var(--resorte); }
.boton:hover { transform: translateY(-3px); box-shadow: 0 1px 0 transparent, 0 18px 30px -16px color-mix(in oklab, var(--tinta) 80%, transparent); }
.boton:hover::after { transform: translateX(4px); }
.boton:active { transform: translateY(0) scale(.98); transition-duration: .12s; }
.boton--claro { --b-fondo: var(--laton); --b-tinta: var(--tinta); }
.boton--chico { min-height: 42px; padding: 0 1.1em; font-size: .95rem; }
.boton--chico::after { content: none; }

.enlace { color: var(--laton-osc); font-weight: 600; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .25em; transition: text-underline-offset .3s var(--ease); }
.enlace:hover { text-underline-offset: .4em; }
.enlace--claro { color: var(--laton); }
.enlace--flecha::after { content: " →"; }

.acciones { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 26px; }

/* ---------- cabecera ---------- */
.cabecera {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 20px;
  padding: 14px var(--gutter);
  background: color-mix(in oklab, var(--papel) 88%, transparent);
  backdrop-filter: blur(10px) saturate(1.2); -webkit-backdrop-filter: blur(10px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.cabecera.con-borde { border-bottom-color: var(--filete); }
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; margin-right: auto; }
.marca__llave { width: 46px; height: auto; color: var(--laton-osc); }
.marca__txt { display: flex; flex-direction: column; line-height: 1; }
.marca__chica { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--suave); font-weight: 600; }
.marca__nombre { font-size: 1.45rem; font-weight: 800; letter-spacing: -.02em; margin-top: 3px; }
.nav { display: none; gap: 28px; }
.nav a { text-decoration: none; font-weight: 600; font-size: .98rem; position: relative; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--laton); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.nav a:hover::after { transform: scaleX(1); }
@media (min-width: 820px) { .nav { display: flex; } }

/* ---------- 01 portada ---------- */
.portada {
  max-width: var(--ancho); margin: 0 auto;
  padding: clamp(48px, 8vw, 120px) var(--gutter) clamp(56px, 8vw, 110px);
  display: grid; gap: clamp(40px, 6vw, 72px);
  align-items: center;
}
.portada__titulo { font-size: var(--t-hero); line-height: .98; letter-spacing: -.035em; }
.portada__titulo em { display: block; color: var(--laton-osc); font-weight: 600; }
.portada__bajada { max-width: 34ch; margin: 1.6rem 0 2.2rem; color: var(--suave); font-size: clamp(1.12rem, 1rem + .5vw, 1.4rem); line-height: 1.5; }

.portada__llave { margin: 30px 0 0 auto; position: relative; width: min(100%, 92%); }
.llave { width: 100%; overflow: visible; color: var(--tinta); }
.llave__cuerpo { transform-box: view-box; transform-origin: 17% 50%; }
.llave__trazo { fill: none; stroke: currentColor; stroke-width: 7; stroke-linejoin: round; }
.llave__ojo { stroke: var(--laton); stroke-width: 9; }
.llave__ranura { fill: none; stroke: var(--laton); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 2 12; }
.portada__nota {
  display: flex; flex-direction: column;
  margin-top: 18px; padding-left: clamp(0px, 4vw, 40px);
  font-style: italic; font-size: clamp(1.1rem, 1rem + .6vw, 1.5rem); color: var(--suave); line-height: 1.25;
}

@media (min-width: 900px) {
  .portada { grid-template-columns: 1.15fr .85fr; min-height: calc(100svh - 72px); }
  .portada__llave { transform: translateY(6%); width: 100%; margin: 0; }
}

/* Trazo que se dibuja al cargar */
.llave__trazo { stroke-dasharray: 1600; stroke-dashoffset: 0; }
.js .llave__trazo { animation: dibujar 1.8s var(--ease) .25s both; }
@keyframes dibujar { from { stroke-dashoffset: 1600; } }

/* La llave gira un cuarto de vuelta mientras se baja la portada (sin librería). */
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .llave__cuerpo { animation: girar linear both; animation-timeline: scroll(root); animation-range: 0 70vh; }
    @keyframes girar { from { transform: rotate(-24deg) translateX(-2%); } to { transform: rotate(0deg) translateX(4%); } }
  }
}

/* ---------- corte de llave: divisor entre secciones (gesto de firma) ---------- */
.corte { height: 34px; max-width: var(--ancho); margin: 0 auto; padding: 0 var(--gutter); color: var(--tinta); }
.corte svg { width: 100%; height: 100%; }
.corte path { fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.js .corte path { stroke-dasharray: 3000; stroke-dashoffset: 3000; transition: stroke-dashoffset 1.6s var(--ease); }
.js .corte.visto path { stroke-dashoffset: 0; }
.corte--sobre-noche { background: transparent; }

/* ---------- 02 servicios ---------- */
.servicios, .como, .preguntas { max-width: var(--ancho); margin: 0 auto; padding: var(--seccion) var(--gutter); }
.lista-servicios { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--filete); }
.servicio {
  display: grid; grid-template-columns: 3.2rem 1fr; column-gap: 12px; row-gap: 8px;
  padding: clamp(22px, 3vw, 34px) 0; border-bottom: 1px solid var(--filete);
  transition: padding-left .5s var(--ease), background-color .4s var(--ease);
}
.servicio__num { grid-row: span 2; font-weight: 400; font-style: italic; color: var(--laton-osc); font-size: 1.05rem; padding-top: .35em; }
.servicio__nombre { font-size: var(--t-h3); }
.servicio__texto { color: var(--suave); max-width: 52ch; }
@media (min-width: 900px) {
  .servicio { grid-template-columns: 5rem minmax(0, 1fr) minmax(0, 1.1fr); align-items: baseline; }
  .servicio__num { grid-row: auto; }
  .servicio__nombre { font-size: clamp(1.6rem, 1rem + 1.5vw, 2.4rem); }
  .servicio:hover { padding-left: 14px; }
}
.aclaracion { margin-top: 28px; font-style: italic; color: var(--suave); }

/* ---------- 03 cómo es ---------- */
.pasos { list-style: none; margin: 0; padding: 0; display: grid; gap: 44px; counter-reset: paso; }
.paso { position: relative; padding-left: 64px; counter-increment: paso; }
.paso::before {
  content: counter(paso); position: absolute; left: 0; top: -.15em;
  font-size: 2.6rem; font-weight: 800; line-height: 1; color: var(--tinta);
}
.paso__muesca { position: absolute; left: 0; top: 3.2rem; width: 30px; height: 10px; background: var(--laton); clip-path: polygon(0 0, 100% 0, 70% 100%, 30% 100%); }
.paso h3 { font-size: var(--t-h3); margin-bottom: .5rem; }
.paso p { color: var(--suave); max-width: 36ch; }
@media (min-width: 900px) {
  .pasos { grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 2px solid var(--tinta); }
  .paso { padding: 34px 32px 0 0; }
  .paso::before { position: static; display: block; font-size: 4rem; margin-bottom: 18px; }
  .paso__muesca { top: -6px; left: 0; }
  .paso:nth-child(2) { margin-top: 56px; }
  .paso:nth-child(3) { margin-top: 112px; }
}

/* ---------- 04 presupuesto ---------- */
.presupuesto {
  background: var(--noche); color: var(--sobre-noche);
  padding: var(--seccion) var(--gutter);
  display: grid; gap: clamp(40px, 6vw, 80px);
}
@media (min-width: 1000px) {
  .presupuesto { grid-template-columns: .9fr 1.1fr; padding-inline: max(var(--gutter), calc((100vw - var(--ancho)) / 2 + var(--gutter))); align-items: start; }
  .presupuesto__intro { position: sticky; top: 120px; }
}
.presupuesto__intro h2 { font-size: var(--t-h2); margin-bottom: 1.3rem; }
.presupuesto__intro h2 em { color: var(--laton); }
.presupuesto__intro > p:last-child { color: var(--suave-noche); max-width: 40ch; }

.form { display: grid; gap: 26px; }
.form__grupo { border: 0; margin: 0; padding: 0; }
.form legend, .form label { font-weight: 600; font-size: 1rem; margin-bottom: 10px; display: block; padding: 0; }
.opcional { font-weight: 400; color: var(--suave-noche); font-style: italic; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { margin: 0 !important; cursor: pointer; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-flex; align-items: center; min-height: 46px; padding: 0 18px;
  border: 1.5px solid color-mix(in oklab, var(--sobre-noche) 34%, transparent); border-radius: 999px;
  font-weight: 400; transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .4s var(--resorte);
}
.chip:hover span { border-color: var(--laton); transform: translateY(-2px); }
.chip input:checked + span { background: var(--laton); color: var(--tinta); border-color: var(--laton); font-weight: 600; }
.chip input:focus-visible + span { outline: 3px solid var(--laton); outline-offset: 3px; }
.form__fila { display: grid; gap: 26px; }
@media (min-width: 640px) { .form__fila { grid-template-columns: 1fr 1fr; } }
.form input[type="text"], .form textarea {
  width: 100%; font: inherit; font-size: 1.05rem; color: var(--sobre-noche);
  background: color-mix(in oklab, var(--sobre-noche) 7%, transparent);
  border: 1.5px solid color-mix(in oklab, var(--sobre-noche) 26%, transparent); border-radius: var(--radio);
  padding: 13px 14px; transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
.form textarea { resize: vertical; min-height: 96px; }
.form input::placeholder, .form textarea::placeholder { color: color-mix(in oklab, var(--sobre-noche) 52%, transparent); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--laton); background: color-mix(in oklab, var(--sobre-noche) 11%, transparent); }
.form__error { color: #ffcf7a; margin-top: 10px; font-style: italic; }
.form__vista { border-left: 3px solid var(--laton); padding: 4px 0 4px 18px; }
.form__vista-t { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--suave-noche); font-weight: 600; margin-bottom: 6px; }
.form__vista-msg { font-style: italic; font-size: 1.12rem; }
.form .boton { justify-self: start; }
.form__nota { color: var(--suave-noche); font-size: .95rem; }

/* ---------- 05 boca en boca ---------- */
.boca {
  max-width: var(--ancho); margin: 0 auto; padding: var(--seccion) var(--gutter);
  display: grid; gap: 40px;
}
.boca__frase { font-size: clamp(2rem, 1.1rem + 3.6vw, 4.4rem); line-height: 1.08; letter-spacing: -.025em; font-weight: 600; max-width: 18ch; }
.boca__frase em { color: var(--laton-osc); }
.boca__accion { max-width: 42ch; display: grid; gap: 16px; color: var(--suave); }
@media (min-width: 900px) {
  .boca { grid-template-columns: 1.4fr .8fr; align-items: end; }
}

/* ---------- 06 preguntas ---------- */
.faq { border-top: 1px solid var(--filete); max-width: 900px; }
.faq details { border-bottom: 1px solid var(--filete); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 24px 0; font-size: clamp(1.15rem, 1rem + .6vw, 1.5rem); font-weight: 600;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 400; font-size: 1.8rem; line-height: 1; color: var(--laton-osc); transition: transform .45s var(--resorte); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 26px; color: var(--suave); max-width: 60ch; }

/* ---------- 07 contacto ---------- */
.contacto {
  background: var(--noche); color: var(--sobre-noche);
  padding: var(--seccion) var(--gutter);
  padding-inline: max(var(--gutter), calc((100vw - var(--ancho)) / 2 + var(--gutter)));
}
.contacto__titulo { font-size: var(--t-h2); }
.contacto__tel {
  display: inline-block; margin: clamp(20px, 3vw, 36px) 0 clamp(32px, 4vw, 52px);
  font-size: clamp(2.3rem, 1rem + 6.6vw, 7rem); font-weight: 800; letter-spacing: -.035em; line-height: 1;
  color: var(--laton); text-decoration: none; white-space: nowrap;
  transition: letter-spacing .6s var(--ease);
}
.contacto__tel:hover { letter-spacing: -.02em; }
.contacto__datos { display: grid; gap: 22px; max-width: 760px; margin-bottom: 40px; color: var(--suave-noche); }
.dato { display: block; color: var(--sobre-noche); font-weight: 600; margin-bottom: 4px; }
@media (min-width: 760px) { .contacto__datos { grid-template-columns: 1fr 1fr; gap: 40px; } }

/* ---------- pie ---------- */
.pie {
  background: var(--noche); color: var(--suave-noche);
  border-top: 1px solid color-mix(in oklab, var(--sobre-noche) 14%, transparent);
  padding: 26px var(--gutter) calc(26px + env(safe-area-inset-bottom));
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; font-size: .92rem;
}
.pie a { color: var(--sobre-noche); }
.pie__cookies { background: none; border: 0; padding: 0; font: inherit; color: var(--sobre-noche); text-decoration: underline; cursor: pointer; }

/* ---------- reveals con stagger (con plazo de seguridad en site.js) ---------- */
.js [data-rev] { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .9s var(--ease); transition-delay: var(--d, 0ms); }
.js [data-rev].visto { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js [data-rev] { opacity: 1; transform: none; }
  .js .corte path { stroke-dashoffset: 0; }
}

@media print {
  .cabecera, .form, .pie__cookies { display: none; }
  body { background: #fff; }
}