/* ==========================================================================
   ui.css — piezas comunes a todas las páginas
   nav · menú a pantalla completa · botones · marquesina · pie · encabezados
   ========================================================================== */

/* ---- Barra de navegación ------------------------------------------------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 300;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-inline: var(--gutter);
  color: var(--ink);
  transition: transform 0.55s var(--ease), background 0.45s var(--ease),
              color 0.45s var(--ease), border-color 0.45s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav--dark { color: var(--light); }

.nav--scrolled {
  background: rgba(245, 241, 233, 0.78);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom-color: var(--ink-faint);
}

.nav--scrolled.nav--dark {
  background: rgba(20, 18, 15, 0.62);
  border-bottom-color: rgba(242, 237, 228, 0.14);
}

.nav--hidden { transform: translateY(-102%); }

.nav__brand {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  z-index: 2;
}

.nav__brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.15rem, 1.7vw, 1.5rem);
  letter-spacing: 0.16em;
  text-indent: 0.16em;
}

.nav__brand-sub {
  font-size: 8.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-top: 3px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3vw, 46px);
}

.nav__link {
  position: relative;
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  padding-block: 6px;
  opacity: 0.78;
  transition: opacity 0.3s var(--ease);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--ease);
}

.nav__link:hover { opacity: 1; }
.nav__link:hover::after,
.nav__link.is-current::after { transform: scaleX(1); transform-origin: left; }
.nav__link.is-current { opacity: 1; }

.nav__right {
  display: flex;
  align-items: center;
  gap: 18px;
  z-index: 2;
}

/* Botón hamburguesa: dos trazos que se cruzan al abrir */
.nav__burger {
  display: none;
  width: 42px; height: 42px;
  position: relative;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.65;
  transition: opacity 0.3s var(--ease);
}

.nav__burger:hover { opacity: 1; }

.nav__burger span {
  position: absolute;
  left: 50%; top: 50%;
  width: 15px; height: 1px;
  background: currentColor;
  transition: transform 0.45s var(--ease), opacity 0.3s var(--ease);
}

.nav__burger span:nth-child(1) { transform: translate(-50%, -4px); }
.nav__burger span:nth-child(2) { transform: translate(-50%, 3px); }

body.menu-open .nav__burger span:nth-child(1) { transform: translate(-50%, 0) rotate(45deg); }
body.menu-open .nav__burger span:nth-child(2) { transform: translate(-50%, 0) rotate(-45deg); }
body.menu-open .nav { color: var(--light); background: transparent; border-color: transparent; }

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .nav__cta { display: none; }
}

/* ---- Menú a pantalla completa -------------------------------------------- */

.menu {
  position: fixed;
  inset: 0;
  z-index: 290;
  background: var(--ink);
  color: var(--light);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-height) + 30px) var(--gutter) 40px;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.8s var(--ease-in-out);
  visibility: hidden;
}

.menu.is-open {
  clip-path: inset(0 0 0% 0);
  visibility: visible;
}

.menu__list { display: flex; flex-direction: column; gap: 4px; }

.menu__item { overflow: hidden; }

.menu__link {
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.6rem, 11vw, 4.6rem);
  line-height: 1.16;
  transition: color 0.35s var(--ease), padding-left 0.45s var(--ease);
}

.menu__link:hover { color: var(--brass-light); padding-left: 14px; }
.menu__link.is-current { color: var(--brass-light); }

.menu__num {
  font-family: var(--font-ui);
  font-size: 10px;
  letter-spacing: 0.2em;
  opacity: 0.62;
}

.menu__foot {
  margin-top: 46px;
  padding-top: 22px;
  border-top: 1px solid rgba(242, 237, 228, 0.16);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 34px;
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--light-mute);
}

/* ---- Botones -------------------------------------------------------------- */

.btn {
  --btn-fg: var(--paper);
  --btn-bg: var(--ink);

  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 30px;
  border-radius: 999px;
  overflow: hidden;
  isolation: isolate;
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--btn-fg);
  background: var(--btn-bg);
  transition: color 0.4s var(--ease);
  will-change: transform;
}

/* Relleno que sube desde abajo al pasar por encima */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--brass);
  transform: translateY(101%);
  transition: transform 0.55s var(--ease);
}

.btn:hover::before { transform: translateY(0); }
.btn:hover { color: var(--ink); }

.btn__arrow { transition: transform 0.45s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(6px); }

.btn--ghost {
  --btn-fg: var(--ink);
  --btn-bg: transparent;
  border: 1px solid var(--ink-faint);
}

.btn--ghost:hover { color: var(--paper); }
.btn--ghost::before { background: var(--ink); }

.btn--light {
  --btn-fg: var(--ink);
  --btn-bg: var(--paper);
}

.btn--outline-light {
  --btn-fg: var(--light);
  --btn-bg: transparent;
  border: 1px solid rgba(242, 237, 228, 0.4);
}

.nav__cta {
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 11px 22px;
  border: 1px solid currentColor;
  border-radius: 999px;
  opacity: 0.8;
  transition: opacity 0.3s var(--ease), background 0.4s var(--ease),
              color 0.4s var(--ease);
}

.nav__cta:hover {
  opacity: 1;
  background: currentColor;
}

/* El texto interior invierte a la vez que el fondo */
.nav__cta:hover span { color: var(--paper); }
.nav--dark .nav__cta:hover span { color: var(--ink); }

/* Enlace con subrayado que se redibuja de izquierda a derecha */
.link-underline {
  position: relative;
  display: inline-block;
  padding-bottom: 3px;
}

.link-underline::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform-origin: right;
  transform: scaleX(1);
  transition: transform 0.4s var(--ease);
}

.link-underline:hover::after {
  transform-origin: left;
  animation: underlineSweep 0.6s var(--ease);
}

@keyframes underlineSweep {
  0% { transform: scaleX(1); transform-origin: right; }
  49% { transform: scaleX(0); transform-origin: right; }
  50% { transform: scaleX(0); transform-origin: left; }
  100% { transform: scaleX(1); transform-origin: left; }
}

/* ---- Encabezado de sección ------------------------------------------------ */

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(28px, 5vw, 90px);
  align-items: end;
  margin-bottom: clamp(44px, 6vw, 88px);
}

.section-head__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h2);
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin-top: 20px;
}

.section-head__note {
  font-size: var(--fs-lead);
  line-height: 1.62;
  color: var(--ink-mute);
  max-width: 46ch;
  padding-bottom: 6px;
}

@media (max-width: 860px) {
  .section-head { grid-template-columns: 1fr; align-items: start; }
}

/* ---- Marquesina ----------------------------------------------------------- */

.marquee {
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
  padding-block: clamp(22px, 3vw, 40px);
  border-block: 1px solid var(--ink-faint);
}

.marquee__track {
  display: inline-block;
  will-change: transform;
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: clamp(26px, 4vw, 58px);
  padding-right: clamp(26px, 4vw, 58px);
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.4vw, 3.6rem);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.marquee__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--brass);
  flex: none;
}

.marquee--dark {
  background: var(--ink);
  color: var(--light);
  border-block-color: rgba(242, 237, 228, 0.14);
}

/* ---- Pie ------------------------------------------------------------------- */

.footer {
  background: var(--ink);
  color: var(--light);
  padding: clamp(70px, 9vw, 130px) 0 34px;
}

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) repeat(2, minmax(0, 0.6fr));
  gap: clamp(34px, 5vw, 80px);
  padding-bottom: clamp(46px, 6vw, 84px);
  border-bottom: 1px solid rgba(242, 237, 228, 0.14);
}

.footer__claim {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.6vw, 3.2rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  max-width: 15ch;
}

.footer__col-title {
  font-size: var(--fs-micro);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--light-mute);
  margin-bottom: 20px;
}

.footer__list { display: flex; flex-direction: column; gap: 11px; }
.footer__list a, .footer__list span { color: rgba(242, 237, 228, 0.86); }
.footer__list a:hover { color: var(--brass-light); }

.footer__bottom {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 30px;
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242, 237, 228, 0.62);
}

@media (max-width: 820px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__claim { grid-column: 1 / -1; }
}

/* ---- Cabecera de página interna -------------------------------------------- */

.page-head {
  position: relative;
  background: var(--ink);
  color: var(--light);
  padding: calc(var(--nav-height) + clamp(78px, 12vw, 170px)) 0 clamp(60px, 8vw, 120px);
  overflow: hidden;
}

.page-head__bg {
  position: absolute;
  inset: -12% 0 -12% 0;
  z-index: 0;
}

.page-head__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: grayscale(0.15) contrast(1.04);
}

.page-head__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(20, 18, 15, 0.86) 0%,
    rgba(20, 18, 15, 0.62) 45%,
    rgba(20, 18, 15, 0.94) 100%
  );
}

.page-head__inner { position: relative; z-index: 1; }

.page-head__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h1);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 22px 0 0;
  max-width: 16ch;
}

.page-head__lead {
  margin-top: 26px;
  max-width: 52ch;
  font-size: var(--fs-lead);
  line-height: 1.62;
  color: rgba(242, 237, 228, 0.72);
}

.page-head__meta {
  margin-top: clamp(38px, 5vw, 62px);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 46px;
  padding-top: 22px;
  border-top: 1px solid rgba(242, 237, 228, 0.16);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(242, 237, 228, 0.6);
}

/* ---- Bloque final de llamada a la acción ------------------------------------ */

.cta-block {
  position: relative;
  padding: clamp(90px, 12vw, 180px) 0;
  background: var(--sage-deep);
  color: var(--light);
  overflow: hidden;
  text-align: center;
}

.cta-block__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 18ch;
  margin: 26px auto 0;
}

.cta-block__note {
  margin: 26px auto 40px;
  max-width: 44ch;
  color: rgba(242, 237, 228, 0.72);
  font-size: var(--fs-lead);
  line-height: 1.6;
}