/* ============================================================
   Constructora Garibay — warm minimalist
   Palette: warm bone canvas, charcoal text, single clay accent.
   No gradients, no heavy shadows, 1px warm borders.
   ============================================================ */

:root {
  --bg:        #f7f6f3;   /* warm bone canvas */
  --surface:   #ffffff;
  --ink:       #1c1b18;   /* charcoal, never pure black */
  --ink-soft:  #57534c;
  --muted:     #8a857c;
  --line:      #e6e2da;   /* warm hairline */
  --accent:    #9a6a4a;   /* muted clay/terracotta */
  --accent-ink:#6f4a30;

  --serif: "Fraunces", "Newsreader", "Playfair Display", Georgia, serif;
  --sans:  "Manrope", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;

  --maxw: 1200px;
  --gut:  clamp(1.25rem, 5vw, 4rem);
  --sp:   clamp(5rem, 12vw, 9rem);    /* section vertical rhythm */
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff; padding: .75rem 1rem; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; border-radius: 6px; }

::selection { background: rgba(154,106,74,.18); }

/* ── Shared type ──────────────────────────────────────────── */
.eyebrow {
  font-size: .75rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent-ink); font-weight: 600; margin: 0 0 1rem;
}

.section { padding: var(--sp) var(--gut); max-width: var(--maxw); margin-inline: auto; }
.section__head { max-width: 46rem; margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.section__title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.08;
  letter-spacing: -0.02em; margin: 0; color: var(--ink);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--sans); font-size: .9375rem; font-weight: 500;
  padding: .85rem 1.5rem; border-radius: 5px; border: 1px solid transparent;
  cursor: pointer; transition: background .2s ease, color .2s ease,
    border-color .2s ease, transform .12s ease;
}
.btn:active { transform: scale(.98); }
.btn--primary { background: var(--ink); color: #fff; }
.btn--primary:hover { background: #322e29; }
.btn--ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink); }

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.nav.is-stuck { border-color: var(--line); }
.nav__inner {
  max-width: var(--maxw); margin-inline: auto;
  padding: 1.1rem var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.nav__brand { display: inline-flex; align-items: center; gap: .65rem; }
.nav__mark {
  font-family: var(--serif); font-size: 1.5rem; line-height: 1;
  width: 2rem; height: 2rem; display: grid; place-items: center;
  border: 1px solid var(--ink); border-radius: 5px; color: var(--ink);
}
.nav__name { font-weight: 600; font-size: .95rem; letter-spacing: .01em; }
.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a { font-size: .9rem; color: var(--ink-soft); transition: color .18s ease; }
.nav__links a:hover { color: var(--ink); }
.nav__cta {
  border: 1px solid var(--line); padding: .5rem 1rem; border-radius: 5px;
  color: var(--ink) !important;
}
.nav__cta:hover { border-color: var(--ink); }

.nav__toggle {
  display: none; flex-direction: column; gap: 5px; background: none;
  border: 0; cursor: pointer; padding: .5rem;
}
.nav__toggle span { width: 22px; height: 1.5px; background: var(--ink); transition: transform .25s ease, opacity .2s ease; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

.nav__mobile {
  display: flex; flex-direction: column; gap: .25rem;
  padding: .5rem var(--gut) 1.5rem; border-bottom: 1px solid var(--line);
}
.nav__mobile[hidden] { display: none; }
.nav__mobile a { padding: .8rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
.nav__mobile a:last-child { border-bottom: 0; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  max-width: var(--maxw); margin-inline: auto;
  padding: clamp(3rem, 8vw, 6rem) var(--gut) clamp(3rem, 7vw, 5rem);
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__title {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(2.75rem, 8vw, 5.5rem); line-height: 1.02;
  letter-spacing: -0.03em; margin: .5rem 0 1.5rem; color: var(--ink);
}
.hero__lead { font-size: 1.125rem; color: var(--ink-soft); max-width: 34rem; margin: 0 0 2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero__media {
  margin: 0; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--line);
}
.hero__media img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.85) contrast(1.02);
  aspect-ratio: 11 / 13;
}

/* ── Image placeholders (swap .ph for <img> with real photos) ── */
.ph {
  position: relative; display: grid; place-items: center;
  width: 100%; aspect-ratio: 4 / 3; overflow: hidden;
  background-color: #edeae3;
  background-image: repeating-linear-gradient(
    -45deg, transparent 0 11px, rgba(28,27,24,.025) 11px 12px);
  color: var(--muted); transition: background-color .3s ease;
}
.ph--hero { aspect-ratio: 11 / 13; }
.ph::after {
  content: ""; position: absolute; inset: 14px;
  border: 1px solid rgba(28,27,24,.10); border-radius: 4px;
}
.ph__tag {
  position: absolute; top: 1rem; left: 1rem; z-index: 1;
  font-family: var(--sans); font-size: .68rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent-ink);
}
.ph__label {
  z-index: 1; font-family: var(--serif); font-style: italic;
  font-size: 1.05rem; color: var(--ink-soft);
}
.project__media:hover .ph { background-color: #e8e4dc; }

/* ── Meta / stats ─────────────────────────────────────────── */
.meta {
  max-width: var(--maxw); margin-inline: auto;
  padding: clamp(2rem, 5vw, 3rem) var(--gut);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.meta__item { display: flex; flex-direction: column; gap: .35rem; padding: 1rem 0; }
.meta__num { font-family: var(--serif); font-size: clamp(2rem, 4vw, 2.75rem); line-height: 1; letter-spacing: -0.02em; }
.meta__label { font-size: .85rem; color: var(--muted); text-transform: lowercase; letter-spacing: .02em; }

/* ── Estudio ──────────────────────────────────────────────── */
.estudio__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); }
.estudio__text { font-size: 1.0625rem; color: var(--ink-soft); margin: 0; }

/* ── Proyectos ────────────────────────────────────────────── */
.projects { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); }
.project { display: flex; flex-direction: column; gap: 1rem; }
.project__media {
  display: block; overflow: hidden; border-radius: 10px; border: 1px solid var(--line);
  background: var(--surface);
}
.project__media img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  filter: saturate(.85) contrast(1.02);
  transition: transform .9s cubic-bezier(0.16, 1, 0.3, 1);
}
.project__media:hover img { transform: scale(1.04); }
.project__info { display: grid; grid-template-columns: auto 1fr; column-gap: 1rem; align-items: baseline; }
.project__index { font-family: var(--serif); color: var(--accent); font-size: 1rem; }
.project__name { grid-column: 2; font-family: var(--serif); font-weight: 400; font-size: 1.5rem; letter-spacing: -0.01em; margin: 0; }
.project__type { grid-column: 2; color: var(--muted); font-size: .9rem; margin: .2rem 0 0; }

/* ── Servicios ────────────────────────────────────────────── */
.services {
  display: grid; grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
  background: var(--surface);
}
.service {
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.service:nth-child(2n) { border-right: 0; }
.service:nth-last-child(-n+2) { border-bottom: 0; }
.service__num { font-family: var(--serif); color: var(--accent); font-size: .95rem; }
.service__title { font-family: var(--serif); font-weight: 400; font-size: 1.4rem; margin: .6rem 0 .65rem; letter-spacing: -0.01em; }
.service__text { color: var(--ink-soft); font-size: .98rem; margin: 0; }

/* ── Quote ────────────────────────────────────────────────── */
.quote { padding: var(--sp) var(--gut); }
.quote blockquote {
  max-width: 52rem; margin-inline: auto; text-align: center;
}
.quote p {
  font-family: var(--serif); font-weight: 300; font-style: italic;
  font-size: clamp(1.5rem, 4vw, 2.5rem); line-height: 1.25;
  letter-spacing: -0.01em; margin: 0 0 1.25rem; color: var(--ink);
}
.quote cite { font-style: normal; font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }

/* ── Contacto ─────────────────────────────────────────────── */
.contacto__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.contacto__lead { color: var(--ink-soft); max-width: 30rem; margin: 0 0 2rem; }
.contacto__details { list-style: none; padding: 0; margin: 0; display: grid; gap: 1px; border-top: 1px solid var(--line); }
.contacto__details li {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding: 1rem 0; border-bottom: 1px solid var(--line);
}
.contacto__details span { color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; }
.contacto__details a { color: var(--ink); border-bottom: 1px solid transparent; transition: border-color .2s ease; }
.contacto__details a:hover { border-color: var(--ink); }

.contacto__form { display: grid; gap: 1.1rem; }
.contacto__form label { display: grid; gap: .5rem; font-size: .85rem; color: var(--ink-soft); letter-spacing: .02em; }
.contacto__form input,
.contacto__form textarea {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: 6px; padding: .8rem .9rem;
  transition: border-color .2s ease;
}
.contacto__form input:focus,
.contacto__form textarea:focus { outline: none; border-color: var(--ink); }
.contacto__form textarea { resize: vertical; }
.contacto__form textarea.is-filled {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(154,106,74,.12);
  transition: box-shadow .4s ease, border-color .4s ease;
}
.contacto__form .btn { justify-self: start; margin-top: .25rem; }
.btn--wa { gap: .55rem; }
.btn__icon { flex: none; }
.field-opt { color: var(--muted); font-weight: 400; }
.contacto__hint { font-size: .82rem; color: var(--muted); margin: .3rem 0 0; }

/* ── Cotizador ────────────────────────────────────────────── */
.cotizador__grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem); align-items: stretch;
}
.cotizador__controls { display: flex; flex-direction: column; gap: 1.25rem; }

.cz-field { display: grid; gap: .6rem; }
.cz-field__label { font-size: .85rem; color: var(--ink-soft); letter-spacing: .02em; }

/* Segmented controls (tipo de obra / acabado) */
.cz-seg { border: 0; padding: 0; margin: 0; display: grid; gap: .6rem; }
.cz-seg legend { padding: 0; }
.cz-seg__options { display: flex; flex-wrap: wrap; gap: .5rem; }
.cz-seg label { position: relative; display: inline-flex; }
.cz-seg input { position: absolute; inset: 0; margin: 0; opacity: 0; cursor: pointer; }
.cz-seg span {
  display: inline-flex; align-items: center; padding: .55rem 1.05rem;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
  font-size: .9rem; color: var(--ink-soft); cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.cz-seg span:hover { border-color: var(--ink); }
.cz-seg input:checked + span { background: var(--ink); color: #fff; border-color: var(--ink); }
.cz-seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.cz-field__input {
  display: flex; align-items: center; gap: .5rem;
  border: 1px solid var(--line); border-radius: 8px; background: var(--surface);
  padding: .5rem .9rem; transition: border-color .2s ease;
}
.cz-field__input:focus-within { border-color: var(--ink); }
.cz-field__input input {
  font-family: var(--serif); font-size: clamp(1.6rem, 4vw, 2.1rem); color: var(--ink);
  border: 0; background: transparent; width: 100%; padding: .2rem 0; -moz-appearance: textfield;
}
.cz-field__input input:focus { outline: none; }
.cz-field__input input::-webkit-outer-spin-button,
.cz-field__input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.cz-field__unit { font-family: var(--serif); font-size: 1.3rem; color: var(--muted); }

.cz-range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 2px;
  background: var(--line); border-radius: 2px; cursor: pointer; margin: .25rem 0 0;
}
.cz-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 22px; height: 22px;
  border-radius: 50%; background: var(--ink); border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--ink); transition: transform .12s ease;
}
.cz-range::-webkit-slider-thumb:active { transform: scale(1.12); }
.cz-range::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; background: var(--ink);
  border: 3px solid var(--bg); box-shadow: 0 0 0 1px var(--ink);
}
.cz-range:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
.cz-range__scale { display: flex; justify-content: space-between; font-size: .75rem; color: var(--muted); margin-top: -.5rem; }

.cz-rate { font-size: .95rem; color: var(--ink-soft); margin: .25rem 0 0; }
.cz-rate strong { font-family: var(--serif); font-weight: 400; color: var(--ink); }

.cotizador__result {
  display: flex; flex-direction: column; align-items: flex-start; gap: 1rem;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border: 1px solid var(--line); border-radius: 12px; background: var(--surface);
}
.cz-result__label { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent-ink); font-weight: 600; }
.cz-result__total {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(2.25rem, 6vw, 3.5rem); line-height: 1.05;
  letter-spacing: -0.02em; color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.cz-result__detail {
  font-size: .9rem; color: var(--ink-soft); margin: 0;
  padding-bottom: 1rem; border-bottom: 1px solid var(--line); width: 100%;
}
.cz-result__note { color: var(--muted); font-size: .9rem; margin: 0; max-width: 34ch; }
.cotizador__result .btn { margin-top: auto; }

/* ── Footer ───────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line); }
.footer__inner {
  max-width: var(--maxw); margin-inline: auto; padding: 2.5rem var(--gut);
  display: flex; flex-wrap: wrap; gap: .5rem 2rem; align-items: baseline;
}
.footer__brand { font-family: var(--serif); font-size: 1.1rem; }
.footer__meta { color: var(--muted); font-size: .9rem; }
.footer__copy { color: var(--muted); font-size: .82rem; margin-left: auto; }

/* ── Reveal animation ─────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s cubic-bezier(0.16,1,0.3,1), transform .7s cubic-bezier(0.16,1,0.3,1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .project__media img { transition: none; }
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .hero { grid-template-columns: 1fr; }
  .hero__media { order: -1; }
  .estudio__grid,
  .projects,
  .services,
  .cotizador__grid,
  .contacto__grid { grid-template-columns: 1fr; }
  .service { border-right: 0; }
  .service:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .meta { grid-template-columns: 1fr; gap: 0; }
  .meta__item { border-bottom: 1px solid var(--line); padding: 1.1rem 0; }
  .meta__item:last-child { border-bottom: 0; }
}