/* ==========================================================================
   Layout: contenedores, bandas, encabezado, menú y pie
   ========================================================================== */

.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.container--narrow { max-width: calc(760px + var(--gutter) * 2); }
.container--text { max-width: calc(680px + var(--gutter) * 2); }

.band { position: relative; padding-block: clamp(64px, 8vw, 104px); }
.band--tight { padding-block: clamp(40px, 5vw, 64px); }
.band--white { background: var(--blanco); }
.band--sky { background: var(--cielo); }
.band--sand { background: var(--arena-clara); }
.band--top0 { padding-top: 0; }
.band__head { max-width: 860px; margin-bottom: clamp(28px, 3vw, 40px); }
.band__head p { max-width: 640px; }
.band__head.center { max-width: 800px; }
.band__head.center .lead { max-width: none; }
.band__head h2 { margin-bottom: .35em; }
.band__head p { color: var(--petroleo-suave); margin: 0; }
.band__head.center { margin-inline: auto; }
.band__head--row { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

.grid { display: grid; gap: clamp(16px, 2vw, 28px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1020px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

/* ---------- Encabezado ---------- */
/* Fijo arriba; al bajar se achica para no tapar el contenido */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: rgba(251, 248, 241, .94);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid transparent;
  transition: height var(--t) var(--ease), border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.site-header.is-scrolled { height: var(--header-h-scrolled); border-bottom-color: var(--linea); box-shadow: 0 8px 24px -20px rgba(30, 61, 68, .45); }
.site-header .brand__logo { transition: height var(--t) var(--ease); }
.site-header.is-scrolled .brand__logo { height: 64px; }
.site-header__inner { display: flex; align-items: center; gap: 24px; height: 100%; }

.brand { display: flex; align-items: center; flex: none; }
.brand__logo { height: 92px; width: auto; }
.brand__mark { display: none; height: 40px; width: auto; }

.nav { display: flex; align-items: center; gap: 30px; margin-inline: auto; }
.nav__link, .nav__trigger {
  position: relative;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 0;
  border: 0; background: none;
  color: var(--petroleo);
  font: 700 .95rem/1 var(--font-body);
  white-space: nowrap;
  cursor: pointer;
}
.nav__link:hover, .nav__trigger:hover { color: var(--turquesa); }
.nav__link.is-active, .nav__trigger.is-active { color: var(--turquesa); }
.nav__link.is-active::after, .nav__trigger.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px; border-radius: 2px; background: var(--turquesa);
}
.nav__trigger .icon { width: 16px; height: 16px; transition: transform var(--t) var(--ease); }
.nav__trigger[aria-expanded="true"] .icon { transform: rotate(180deg); }

.nav__actions { display: flex; align-items: center; gap: 34px; flex: none; }
.nav__login { color: var(--petroleo); font-size: .95rem; }

.nav__dropdown { position: relative; }
.mega {
  position: absolute; top: calc(100% + 18px); left: 50%;
  width: min(720px, 92vw); padding: 26px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radius); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translate(-50%, -6px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t);
}
.mega.is-open { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega__group h4 { margin-bottom: 10px; font: 500 .7rem/1.2 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--turquesa); }
.mega__group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.mega__group a { display: block; padding: 7px 10px; margin-inline: -10px; border-radius: 10px; color: var(--petroleo); font-weight: 600; font-size: .95rem; }
.mega__group a:hover { background: var(--cielo); }
.mega__all { grid-column: 1 / -1; padding-top: 16px; border-top: 1px solid var(--linea); display: flex; justify-content: space-between; align-items: center; }

/* Usuario con sesión */
.user-menu { position: relative; }
.user-menu__trigger { display: flex; align-items: center; gap: 10px; padding: 0; border: 0; background: none; color: var(--petroleo); font: 700 .95rem/1 var(--font-body); cursor: pointer; }
.user-menu__trigger::after { content: "▾"; font-size: .7rem; }
.user-menu__panel {
  position: absolute; right: 0; top: calc(100% + 12px); min-width: 200px; padding: 8px;
  background: var(--blanco); border: 1px solid var(--linea); border-radius: 16px; box-shadow: var(--shadow);
  display: grid; opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t);
}
.user-menu__panel.is-open { opacity: 1; visibility: visible; transform: none; }
.user-menu__panel a, .user-menu__panel button {
  display: block; width: 100%; padding: 9px 12px; border: 0; border-radius: 10px; background: none;
  color: var(--petroleo); font: 600 .93rem/1.2 var(--font-body); text-align: left; cursor: pointer;
}
.user-menu__panel a:hover, .user-menu__panel button:hover { background: var(--cielo); color: var(--petroleo); }

.avatar {
  display: inline-grid; place-items: center; flex: none;
  width: 40px; height: 40px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #E9C8BC, #C8A888 70%);
  color: var(--blanco); font: 600 1rem/1 var(--font-title);
  overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar--sm { width: 30px; height: 30px; font-size: .8rem; }

.secure { display: flex; align-items: center; gap: 8px; margin-left: auto; color: var(--petroleo-suave); font-size: .95rem; }
.secure .icon { width: 18px; height: 18px; }

.menu-toggle {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; padding: 0; border: 0; background: none; color: var(--petroleo); cursor: pointer;
}
.menu-toggle .icon { width: 26px; height: 26px; }
.mobile-actions { display: none; align-items: center; gap: 14px; margin-left: auto; }

/* Menú de celular: pantalla completa */
.mobile-menu {
  position: fixed; inset: 0; z-index: 60;
  display: flex; flex-direction: column;
  background: var(--crema); overflow-y: auto;
  opacity: 0; visibility: hidden; transform: translateY(-12px);
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t);
}
.mobile-menu.is-open { opacity: 1; visibility: visible; transform: none; }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); padding-inline: var(--gutter); flex: none; }
.mobile-menu__body { padding: 8px var(--gutter) 40px; display: grid; }
.mobile-menu__link, .mobile-menu__trigger {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 16px 0; border: 0; border-bottom: 1px solid var(--linea); background: none;
  color: var(--petroleo); font: 600 1.35rem/1.2 var(--font-title); text-align: left; cursor: pointer;
}
.mobile-menu__trigger .icon { width: 22px; height: 22px; transition: transform var(--t) var(--ease); }
.mobile-menu__trigger[aria-expanded="true"] .icon { transform: rotate(45deg); }
.mobile-menu__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--t-slow) var(--ease); }
.mobile-menu__panel.is-open { grid-template-rows: 1fr; }
.mobile-menu__panel > div { overflow: hidden; }
.mobile-menu__panel h4 { margin: 18px 0 4px; font: 500 .7rem/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--turquesa); }
.mobile-menu__panel a { display: block; padding: 8px 0; color: var(--petroleo); font-weight: 600; }
.mobile-menu__actions { display: grid; gap: 10px; margin-top: 24px; }

@media (max-width: 1180px) {
  .nav, .nav__actions { display: none; }
  .mobile-actions, .menu-toggle { display: flex; }
  .brand__logo { display: none; }
  .brand__mark { display: block; height: 42px; }
}
body.menu-open { overflow: hidden; }

/* ---------- Pie (turquesa) ---------- */
.site-footer { background: var(--turquesa); color: rgba(251, 248, 241, .9); padding-block: 64px; font-size: .95rem; }
.site-footer a { color: rgba(251, 248, 241, .9); }
.site-footer a:hover { color: var(--blanco); }
.site-footer__grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr 1fr; gap: 40px; }
.site-footer__brand h2 { margin: 0 0 6px; color: var(--blanco); font-size: 1.65rem; letter-spacing: 0; white-space: nowrap; }
.site-footer__brand p { margin: 0; }
.site-footer h3 { margin: 0 0 8px; color: var(--blanco); font: 700 1rem/1.3 var(--font-body); }
.site-footer__links { margin: 0; line-height: 1.55; }
.site-footer__mobile { display: none; }
@media (max-width: 860px) {
  .site-footer { padding-block: 40px 48px; }
  .site-footer__grid { display: none; }
  .site-footer__mobile { display: grid; gap: 14px; }
  .site-footer__mobile h2 { margin: 0; color: var(--blanco); font-size: 1.5rem; }
  .site-footer__mobile p { margin: 0; }
  .site-footer__social { font-weight: 700; }
  .site-footer__social a { color: var(--blanco); }
}