/* ============================================================
   VĀSTU — landing
   Stack: HTML semántico + CSS custom properties + JS vanilla.
   Sistema de marca: ../00_BRAND_CORE/brand.md
   ============================================================ */

/* ---------- Fuentes ---------- */

@font-face {
  font-family: 'Akzidenz-Grotesk Pro';
  src: url('/assets/fonts/AkzidenzGrotesk-Medium.otf') format('opentype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Akzidenz-Grotesk Pro';
  src: url('/assets/fonts/AkzidenzGrotesk-Italic.otf') format('opentype');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Akzidenz-Grotesk Pro';
  src: url('/assets/fonts/AkzidenzGrotesk-LightCond.otf') format('opentype');
  font-weight: 300;
  font-stretch: condensed;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */

:root {
  /* Paleta — los nombres son sagrados, ver brand.md */
  --earth: #976633;
  --water: #7A878E;
  --moon:  #E0E1E2;
  --night: #000033;

  /* Tipografía */
  --font-stack: 'Akzidenz-Grotesk Pro', 'DM Sans', 'Helvetica Neue', Arial, sans-serif;

  /* Tracking — la seña de identidad más importante */
  --track-display: 0.25em;
  --track-title:   0.2em;
  --track-label:   0.15em;
  --track-body:    0.02em;

  /* Layout */
  --pad-x: clamp(24px, 5vw, 120px);
  --pad-y: clamp(80px, 12vw, 160px);
  --max-content: 1200px;
  --max-narrow: 760px;

  /* Animación */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --t-fast: 0.2s;
  --t-base: 0.4s;
  --t-slow: 0.6s;
}

/* ---------- Reset mínimo ---------- */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--moon);
  color: var(--night);
  font-family: var(--font-stack);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: var(--track-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast) ease;
}

ul { list-style: none; padding: 0; margin: 0; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

::selection { background: var(--earth); color: var(--moon); }

/* ---------- CTA universal ---------- */

.cta {
  display: inline-block;
  padding: 18px 36px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-title);
  font-size: 0.78rem;
  border: 1px solid currentColor;
  background: transparent;
  transition: background var(--t-fast) ease, color var(--t-fast) ease, border-color var(--t-fast) ease;
  white-space: nowrap;
}

.cta--moon  { color: var(--moon); border-color: var(--moon); }
.cta--night { color: var(--night); border-color: var(--night); }
.cta--earth { color: var(--earth); border-color: var(--earth); }

.cta--sm { padding: 12px 22px; font-size: 0.7rem; }
.cta--lg { padding: 22px 48px; font-size: 0.85rem; }

.cta:hover,
.cta:focus-visible {
  background: var(--earth);
  border-color: var(--earth);
  color: var(--moon);
  outline: none;
}

.cta:focus-visible { box-shadow: 0 0 0 3px rgba(151, 102, 51, 0.3); }

/* ---------- NAV ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--pad-x);
  background: rgba(0, 0, 51, 0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transform: translateY(-110%);
  transition: transform var(--t-base) var(--ease),
              background var(--t-base) var(--ease),
              backdrop-filter var(--t-base) var(--ease);
}

.nav.is-visible {
  transform: translateY(0);
  background: rgba(0, 0, 51, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  color: var(--moon);
}

.nav__logo {
  width: 110px;
  height: 28px;
  fill: currentColor;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__list {
  display: flex;
  gap: 32px;
}

.nav__link {
  color: var(--moon);
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  font-size: 0.75rem;
  font-weight: 500;
}

.nav__link:hover,
.nav__link:focus-visible { color: var(--earth); outline: none; }

.nav__cta { color: var(--moon); border-color: var(--earth); }
.nav__cta:hover { background: var(--earth); border-color: var(--earth); }

/* Hamburger — solo mobile */
.nav__toggle {
  display: none;
  width: 28px;
  height: 28px;
  position: relative;
}

.nav__toggle-line {
  position: absolute;
  left: 0; right: 0;
  height: 1.5px;
  background: var(--moon);
  transition: transform var(--t-fast) ease, top var(--t-fast) ease, opacity var(--t-fast) ease;
}

.nav__toggle-line:nth-child(1) { top: 9px; }
.nav__toggle-line:nth-child(2) { top: 17px; }

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(1) {
  top: 13px; transform: rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(2) {
  top: 13px; transform: rotate(-45deg);
}

/* ---------- HERO ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--moon);
  overflow: hidden;
  padding: 0 var(--pad-x);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/img/hero.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--night);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(0, 0, 51, 0.35) 0%,
    rgba(0, 0, 51, 0.55) 60%,
    rgba(0, 0, 51, 0.75) 100%);
}

.hero__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(24px, 4vw, 40px);
  max-width: 900px;
}

.hero__logo {
  width: clamp(180px, 24vw, 280px);
  height: auto;
  fill: var(--moon);
}

.hero__tagline {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.4em;
  font-size: clamp(0.7rem, 1.2vw, 0.85rem);
  font-weight: 400;
  opacity: 0.92;
}

.hero__claim {
  margin: 0;
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-display);
  line-height: 1.4;
}

.hero__claim span { display: block; }

.hero__cta { margin-top: clamp(16px, 2vw, 24px); }

.hero__scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 48px;
  background: var(--moon);
  opacity: 0.4;
  overflow: hidden;
}

.hero__scroll-hint span {
  display: block;
  width: 100%;
  height: 50%;
  background: var(--earth);
  animation: scroll-hint 2.6s var(--ease) infinite;
}

@keyframes scroll-hint {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(200%); }
}

/* ---------- SECTION (compartido) ---------- */

.section {
  padding: var(--pad-y) var(--pad-x);
}

.section--moon  { background: var(--moon);  color: var(--night); }
.section--night { background: var(--night); color: var(--moon); }
.section--earth { background: var(--earth); color: var(--moon); }

.section__inner {
  max-width: var(--max-content);
  margin: 0 auto;
  text-align: center;
}

.section__inner--narrow { max-width: var(--max-narrow); }

.section__title {
  margin: 0 0 clamp(24px, 4vw, 40px);
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-display);
  line-height: 1.3;
}

.section__lede {
  margin: 0 auto clamp(48px, 7vw, 80px);
  max-width: 640px;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.8;
  color: var(--water);
}

.section--night .section__lede { color: var(--moon); opacity: 0.85; }
.section--earth .section__lede { color: var(--moon); opacity: 0.9; }

/* Color overrides for unidades sobre fondo earth */
.section--earth .unit__count,
.section--earth .unit__price span,
.section--earth .unit__note { color: var(--moon); opacity: 0.75; }
.section--earth .unit__price { color: var(--moon); }
.section--earth .booking-fallback { border-color: rgba(224, 225, 226, 0.35); }

/* ---------- EXPERIENCIA — pillars ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(40px, 6vw, 80px);
  margin-top: clamp(40px, 6vw, 64px);
}

.pillar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.pillar__icon {
  width: 48px;
  height: 48px;
  color: var(--earth);
}

.pillar__label {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
}

.pillar__copy {
  margin: 0;
  max-width: 260px;
  font-size: 0.95rem;
  color: var(--water);
  line-height: 1.7;
}

/* ---------- FOGATA — ritual ---------- */

.section--ritual .section__lede {
  margin-bottom: 0;
}

.ritual__icon {
  display: block;
  width: 56px;
  height: 56px;
  margin: 0 auto clamp(20px, 3vw, 28px);
  color: var(--earth);
}

.ritual__overline {
  margin: 0 0 clamp(12px, 2vw, 18px);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--earth);
}

.section__title--display {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 300;
  text-transform: none;
  letter-spacing: 0.01em;
  font-style: italic;
}

/* ---------- UNIDADES ---------- */

.units {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(40px, 6vw, 80px);
  margin-bottom: clamp(60px, 8vw, 100px);
  text-align: left;
}

.unit {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.unit__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: rgba(224, 225, 226, 0.05);
  margin-bottom: 12px;
}

.unit__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow) var(--ease);
}

.unit:hover .unit__media img { transform: scale(1.03); }

.unit__name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-title);
}

.unit__count {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--water);
}

.unit__features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 8px 0;
  font-size: 0.9rem;
  color: var(--moon);
  opacity: 0.85;
}

.unit__features li::after {
  content: '·';
  margin-left: 16px;
  opacity: 0.4;
}

.unit__features li:last-child::after { content: ''; margin: 0; }

.unit__price {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--earth);
}

.unit__price span {
  display: block;
  margin-top: 4px;
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: var(--track-label);
  color: var(--water);
}

.unit__note {
  margin: 0;
  font-size: 0.85rem;
  color: var(--water);
  font-style: italic;
}

/* Booking fallback (V1: WhatsApp) */
.booking-fallback {
  max-width: 800px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) clamp(24px, 4vw, 48px);
  text-align: center;
  border: 1px solid rgba(224, 225, 226, 0.18);
}

.booking-fallback__copy {
  margin: 0 0 24px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--moon);
  opacity: 0.85;
}

/* ---------- GASTRONOMÍA ---------- */

.gastro__media {
  margin: clamp(40px, 6vw, 64px) auto;
  max-width: 800px;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.gastro__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gastro__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.gastro__note {
  margin: 0;
  font-size: 0.85rem;
  color: var(--water);
}

/* ---------- FOOTER ---------- */

.footer {
  background: var(--water);
  color: var(--moon);
  padding: var(--pad-y) var(--pad-x) clamp(32px, 4vw, 48px);
}

.footer__inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 8vw, 120px);
  align-items: start;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer__logo {
  width: 160px;
  height: auto;
  fill: var(--moon);
}

.footer__tagline {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  opacity: 0.85;
}

.footer__property {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: var(--track-title);
  color: var(--earth);
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.footer__contact li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--moon);
  opacity: 0.7;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  letter-spacing: var(--track-body);
  color: var(--moon);
}

.footer__link--block { line-height: 1.6; }
.footer__link:hover  { color: var(--earth); }

.footer__icon {
  width: 18px;
  height: 18px;
  color: currentColor;
  fill: none;
}

.footer__legal {
  margin: clamp(60px, 8vw, 100px) 0 0;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: var(--track-label);
  color: var(--moon);
  opacity: 0.7;
}

/* ---------- Reveal animations ---------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t-slow) ease-out, transform var(--t-slow) ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 880px) {
  .nav__toggle { display: block; }

  .nav__menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 20px;
    padding: 32px var(--pad-x);
    background: rgba(0, 0, 51, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-fast) ease, transform var(--t-fast) ease, visibility 0s linear var(--t-fast);
  }

  .nav__menu.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    transition: opacity var(--t-fast) ease, transform var(--t-fast) ease, visibility 0s;
  }

  .nav__list {
    flex-direction: column;
    gap: 18px;
    width: 100%;
  }

  .pillars { grid-template-columns: 1fr; gap: 56px; }
  .units   { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero__claim { font-size: 1.25rem; line-height: 1.5; }
  .cta { padding: 16px 28px; }
}