/* ============================================================
   7PM ARQUITECTURA — Header & Navegación
   Mobile first: hamburguesa → desktop: nav vertical
   ============================================================ */

/* ─── @font-face ──────────────────────────────────────────── */
@font-face {
  font-family: 'Tabular';
  src: url('../fonts/Tabular-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Satoshi';
  src: url('../fonts/Satoshi-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ─── Header ──────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 20px 24px 0;
  background: transparent;
  z-index: var(--z-header);
}

@media (min-width: 768px) {
  .site-header {
    padding: 28px 40px 0;
  }
}

/* ─── Logo ────────────────────────────────────────────────── */
.site-logo {
  display: block;
  flex-shrink: 0;
}

.site-logo img {
  width: 44px;
  height: auto;
}

@media (min-width: 768px) {
  .site-logo img {
    width: 52px;
  }
}

/* ─── Hamburguesa (solo mobile) ───────────────────────────── */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  width: 32px;
  height: 32px;
  z-index: calc(var(--z-menu) + 1);
  position: relative;
  /* Alinear con el logo verticalmente */
  margin-top: 2px;
}

.nav-toggle__line {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-black);
  transform-origin: center;
  transition:
    transform var(--dur-base) var(--ease-out),
    opacity   var(--dur-fast) ease;
}

/* Estado abierto: 2 líneas forman X */
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(4.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* Ocultar hamburguesa en desktop */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

/* ─── Menú mobile — overlay pantalla completa ─────────────── */
.nav-mobile {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  z-index: var(--z-menu);
  display: flex;
  align-items: center;
  justify-content: center;
  /* Oculto por defecto */
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) ease;
}

.nav-mobile.is-open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.nav-mobile__link {
  font-family: var(--font-tabular);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gray);
  transition: color var(--dur-fast) ease;
  /* Animación de entrada escalonada */
  opacity: 0;
  transform: translateY(10px);
  transition:
    color     var(--dur-fast) ease,
    opacity   var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
}

.nav-mobile.is-open .nav-mobile__list li:nth-child(1) .nav-mobile__link {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 60ms;
}
.nav-mobile.is-open .nav-mobile__list li:nth-child(2) .nav-mobile__link {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 120ms;
}
.nav-mobile.is-open .nav-mobile__list li:nth-child(3) .nav-mobile__link {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 180ms;
}

.nav-mobile__link:hover,
.nav-mobile__link.is-active {
  color: var(--color-black);
}

/* Ocultar nav mobile en desktop */
@media (min-width: 768px) {
  .nav-mobile {
    display: none;
  }
}

/* ─── Navegación desktop ──────────────────────────────────── */
.nav-desktop {
  display: none;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: block;
  }
}

.nav-desktop__list {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.nav-desktop__link {
  font-family: var(--font-tabular);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gray);
  transition: color var(--dur-fast) ease;
  display: block;
  line-height: 1;
}

.nav-desktop__link:hover,
.nav-desktop__link.is-active {
  color: var(--color-black);
}

/* ─── Cursor personalizado global ────────────────────────── */
/*
  Estado por defecto : círculo negro (14px)
  Estado .is-close   : círculo blanco con X (34px) — solo en páginas de obra
  Creado y posicionado vía JS (nav.js)
*/
.cursor-close {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;

  /* Círculo negro por defecto */
  width: 14px;
  height: 14px;
  background: var(--color-black);

  display: flex;
  align-items: center;
  justify-content: center;

  transition:
    opacity          0.14s ease,
    width            0.24s cubic-bezier(0.16, 1, 0.3, 1),
    height           0.24s cubic-bezier(0.16, 1, 0.3, 1),
    background-color 0.20s ease;
}

/* Círculo blanco con X — activado por obra.js */
.cursor-close.is-close {
  width: 34px;
  height: 34px;
  background: #ffffff;
}

.cursor-close svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  color: var(--color-black);
  opacity: 0;
  transition: opacity 0.14s ease;
}

.cursor-close.is-close svg {
  opacity: 1;
}

/* ─── Instagram (fijo, inferior derecha) ──────────────────── */
.instagram-link {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-header);
  color: var(--color-black);
  line-height: 0;
  transition: opacity var(--dur-fast) ease;
}

.instagram-link:hover {
  opacity: 0.4;
}

.instagram-link svg {
  width: 26px;
  height: 26px;
}

@media (min-width: 768px) {
  .instagram-link {
    bottom: 32px;
    right: 40px;
  }
}