/* =========================================================
   JKASG — Hoja de estilo base
   Paleta: negro cálido, blanco hueso, dorado de marca (#C9A24B)
   Tipografía: Fraunces (titulares) + Inter (texto)
   ========================================================= */

:root {
  --color-black: #121110;
  --color-black-soft: #1c1a18;
  --color-cream: #f4f1ea;
  --color-cream-dim: #ece7dc;
  --color-ink: #201e1b;
  --color-ink-soft: #56514a;
  --color-line: #ddd6c7;
  --color-line-dark: #3a362f;
  --color-gold: #c9a24b;
  --color-gold-dim: #a9843a;
  --color-white: #fbfaf7;

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1240px;
  --gap: clamp(1.25rem, 3vw, 2.5rem);
  --radius: 2px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 500; line-height: 1.12; }
p { margin: 0; }
button { font: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.section {
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.section--dark { background: var(--color-black); color: var(--color-cream); }
.section--alt { background: var(--color-cream-dim); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold-dim);
  margin-bottom: 0.9rem;
}

.section--dark .eyebrow { color: var(--color-gold); }

h1 { font-size: clamp(2.4rem, 5vw, 4.1rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

.lede {
  font-size: clamp(1.02rem, 1.4vw, 1.15rem);
  color: var(--color-ink-soft);
  max-width: 46ch;
}

.section--dark .lede { color: #cfc9bd; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
  white-space: nowrap;
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-black);
}
.btn--gold:hover { background: var(--color-gold-dim); }

.btn--outline {
  border-color: currentColor;
  background: transparent;
}
.section--dark .btn--outline:hover,
.btn--outline:hover { background: var(--color-ink); color: var(--color-white); border-color: var(--color-ink); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 0.2rem;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), gap 0.3s var(--ease);
}
.link-arrow:hover { color: var(--color-gold-dim); border-color: var(--color-gold-dim); gap: 0.7rem; }
.section--dark .link-arrow { color: var(--color-cream); border-color: var(--color-line-dark); }
.section--dark .link-arrow:hover { color: var(--color-gold); border-color: var(--color-gold); }

/* ---------- Barra superior ---------- */
.top-notice {
  background: var(--color-gold);
  color: var(--color-black);
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.55rem 1rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-line);
  /* Sin backdrop-filter a propósito: en iOS Safari, un filtro en este contenedor
     convierte su interior en el "contenedor" del menú móvil (position: fixed),
     rompiendo su posicionamiento y dejándolo con fondo transparente/mal ubicado. */
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
}
.logo__img {
  height: 22px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.4rem, 2.5vw, 2.4rem);
}

.main-nav a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  padding-block: 0.3rem;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--color-ink); border-color: var(--color-gold); }

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.header-cta.btn {
  padding: 0.7rem 1.4rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 30px;
  height: 22px;
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span { top: 10px; }
.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--color-black) linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.35) 100%);
  color: var(--color-cream);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.42;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,17,16,0.55) 0%, rgba(18,17,16,0.88) 78%, rgba(18,17,16,1) 100%);
}
.hero__content {
  position: relative;
  padding-block: clamp(5rem, 14vw, 9.5rem) clamp(3.5rem, 8vw, 5.5rem);
}
.hero h1 { max-width: 16ch; margin-bottom: 1.1rem; }
.hero .lede { color: #d8d2c4; margin-bottom: 2.2rem; }
.hero__actions { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.hero__meta {
  font-size: 0.75rem;
  color: #a49d8e;
  letter-spacing: 0.03em;
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--color-line-dark);
}
.stats__item {
  padding: 1.6rem clamp(1rem, 2vw, 1.6rem);
  border-left: 1px solid var(--color-line-dark);
}
.stats__item:first-child { border-left: none; }
.stats__num { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--color-gold); }
.stats__label { font-size: 0.78rem; color: #b6b0a2; margin-top: 0.35rem; }

/* ---------- Líneas de trabajo (servicios resumen) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--color-line);
}
.split__item {
  padding: clamp(1.8rem, 3vw, 2.6rem) clamp(1.4rem, 3vw, 2.6rem);
  border-left: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.split__item:first-child { border-left: none; }
.split__index { font-size: 0.78rem; color: var(--color-gold-dim); font-weight: 600; letter-spacing: 0.06em; }
.split__item h3 { margin-block: 0.7rem 0.6rem; font-size: clamp(1.3rem, 2.2vw, 1.7rem); }
.split__item p { color: var(--color-ink-soft); margin-bottom: 1.2rem; max-width: 40ch; }

/* ---------- Encabezado de sección con acción ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  flex-wrap: wrap;
}

/* ---------- Grid de proyectos ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.project-card__frame {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--color-black);
  position: relative;
}
.project-card__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.project-card:hover .project-card__frame img { transform: scale(1.045); }
.project-card { cursor: pointer; }
.project-card__name { margin-top: 1rem; font-size: 1rem; font-weight: 600; }
.project-card__place {
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-top: 0.25rem;
}

/* Etiqueta de estado (obra terminada / en construcción) sobre la foto */
.tag-pill {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  line-height: 1;
}
.tag-pill--done { background: var(--color-gold); color: var(--color-black); }
.tag-pill--progress { background: var(--color-cream); color: var(--color-ink); }
.project-card__frame .tag-pill {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 2;
}

/* Botón de expandir (esquina inferior derecha de la foto) */
.project-card__expand {
  position: absolute;
  right: 0.85rem;
  bottom: 0.85rem;
  z-index: 2;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: rgba(18, 17, 16, 0.55);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  line-height: 1;
  transition: background 0.25s var(--ease);
}
.project-card:hover .project-card__expand { background: var(--color-gold); color: var(--color-black); }

/* ---------- Modal de proyecto (lightbox) ---------- */
.project-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.25s var(--ease), visibility 0.25s;
}
.project-modal.is-open { visibility: visible; opacity: 1; }
.project-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 17, 16, 0.82);
}
.project-modal__panel {
  position: relative;
  z-index: 1;
  background: var(--color-cream);
  width: min(720px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(12px);
  transition: transform 0.3s var(--ease);
}
.project-modal.is-open .project-modal__panel { transform: translateY(0); }
.project-modal__close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  z-index: 2;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 50%;
  background: var(--color-gold);
  color: var(--color-black);
  font-size: 1.3rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-modal__media {
  background: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  max-height: 56vh;
}
.project-modal__media img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 56vh;
  object-fit: contain;
}
.project-modal__body { padding: clamp(1.3rem, 3vw, 2rem); }
.project-modal__body .tag-pill { margin-bottom: 0.9rem; }
.project-modal__body h3 {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  margin: 0 0 0.4rem;
}
.project-modal__place {
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold-dim);
  font-weight: 600;
  margin: 0 0 1.1rem;
}
.project-modal__desc {
  color: var(--color-ink-soft);
  line-height: 1.65;
  margin: 0;
}
body.modal-open { overflow: hidden; }

@media (max-width: 640px) {
  .project-modal { padding: 0; align-items: flex-end; }
  .project-modal__panel { width: 100%; max-height: 92vh; }
}

/* ---------- Bloque cita / historia ---------- */
.feature {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.feature--even { grid-template-columns: 1fr 1fr; }
.feature--reverse { grid-template-columns: 1.1fr 0.9fr; }
.feature__frame {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.feature__frame img { width: 100%; height: 100%; object-fit: cover; }
.feature blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  font-style: italic;
  line-height: 1.42;
  margin: 0 0 1.6rem;
}
.feature cite {
  font-style: normal;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: #b6b0a2;
  display: block;
}
.feature cite b { color: var(--color-cream); font-weight: 600; }

/* ---------- Proceso (pasos) ---------- */
.process {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}
.process__step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: clamp(1.5rem, 3vw, 2.2rem);
  border-bottom: 1px solid var(--color-line);
}
.process__num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-gold-dim);
}
.process__step h3 { margin-bottom: 0.5rem; }
.process__step p { color: var(--color-ink-soft); max-width: 62ch; }

/* ---------- Columnas de compromiso ---------- */
.commit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.commit-card {
  padding: clamp(1.6rem, 2.6vw, 2.2rem);
  background: var(--color-white);
  border: 1px solid var(--color-line);
}
.commit-card h3 { margin-bottom: 0.7rem; }
.commit-card p { color: var(--color-ink-soft); margin-bottom: 1.1rem; }
.commit-card ul li {
  font-size: 0.88rem;
  padding-block: 0.35rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-soft);
}
.commit-card ul li:first-child { border-top: none; }

/* ---------- CTA de cierre ---------- */
.cta {
  text-align: center;
}
.cta h2 { max-width: 20ch; margin-inline: auto; margin-bottom: 2rem; }
.cta .eyebrow { display: block; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-black);
  color: #a49d8e;
  padding-block: 2.4rem;
  font-size: 0.82rem;
}
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-footer .logo { color: var(--color-cream); }
.footer-links { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.footer-links a:hover { color: var(--color-gold); }

/* ---------- Formulario ---------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1.4rem;
}
.form-grid .full { grid-column: 1 / -1; }
.field label {
  display: block;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: 0.5rem;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font: inherit;
  color: var(--color-ink);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-gold-dim);
}
.form-note { font-size: 0.8rem; color: var(--color-ink-soft); margin-top: 1rem; }
.form-status { margin-top: 1rem; font-size: 0.9rem; }
.form-status[data-state="ok"] { color: #4d7a4a; }
.form-status[data-state="error"] { color: #a5433a; }

/* ---------- Utilidades ---------- */
.text-center { text-align: center; }
.mt-lg { margin-top: clamp(2rem, 4vw, 3rem); }
.badge-empty {
  border: 1px dashed var(--color-line);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .main-nav { position: fixed; inset: 64px 0 0 0; z-index: 50; background-color: var(--color-cream); opacity: 1; flex-direction: column; justify-content: flex-start; padding: 2rem 1.5rem; gap: 1.5rem; transform: translateY(-8px); visibility: hidden; pointer-events: none; transition: transform 0.3s var(--ease), visibility 0.3s; }
  .main-nav.is-open { visibility: visible; transform: translateY(0); pointer-events: auto; }
  .main-nav a { font-size: 1rem; }
  .nav-toggle { display: block; }
  .header-cta { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats__item:nth-child(3) { border-left: none; }
  .stats__item { border-bottom: 1px solid var(--color-line-dark); }
  .split { grid-template-columns: 1fr; }
  .split__item { border-left: none; }
  .split__item:not(:first-child) { border-left: none; }
  .project-grid { grid-template-columns: 1fr; }
  .feature, .feature--even, .feature--reverse { grid-template-columns: 1fr; }
  .commit-grid { grid-template-columns: 1fr; }
  .process__step { grid-template-columns: 56px 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .site-footer__inner { flex-direction: column; align-items: flex-start; }
}