/* ICEYP — Componentes compartidos (header, nav, footer, botones flotantes) */

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  overflow-anchor: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
  transition: padding-block var(--transition-base);
}

.site-header__logo {
  height: 120px;
  width: auto;
  max-width: 100%;
  transition: height var(--transition-base);
}

.site-header--scrolled .site-header__inner { padding-block: var(--space-2); }
.site-header--scrolled .site-header__logo { height: 44px; }

/* Nav */
.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin: 0;
  padding: 0;
}

.nav__link {
  font-family: var(--font-heading);
  font-weight: var(--fw-medium);
  color: var(--color-navy-700);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--fs-body);
}
.nav__link:hover, .nav__link--active { color: var(--color-brand-500); }

.site-nav__dropdown { position: relative; }
.site-nav__submenu {
  list-style: none;
  margin: 0;
  padding: var(--space-2);
  position: absolute;
  top: calc(100% + var(--space-3));
  left: 0;
  min-width: 200px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}
.site-nav__dropdown:hover .site-nav__submenu,
.site-nav__dropdown:focus-within .site-nav__submenu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.site-nav__submenu a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-family: var(--font-body);
}
.site-nav__submenu a:hover { background: var(--color-brand-100); color: var(--color-brand-600); }

.site-nav__cta { padding: var(--space-2) var(--space-6); font-size: var(--fs-small); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}
.nav-toggle span { width: 24px; height: 2px; background: var(--color-navy-900); border-radius: 2px; }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    inset: 0 0 0 30%;
    background: var(--color-white);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 200;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
  }
  .site-nav.is-open { transform: translateX(0); }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-24) var(--space-6) var(--space-6);
    gap: var(--space-2);
  }
  .site-nav__submenu {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none;
    display: none;
    padding-left: var(--space-4);
  }
  .site-nav__dropdown.is-open .site-nav__submenu { display: block; }
  .site-nav__cta { text-align: center; margin-top: var(--space-4); }
}

/* Botones flotantes */
.floating-buttons {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 300;
}
.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-base);
}
.floating-btn:hover { transform: scale(1.08); }
.floating-btn--whatsapp { background: #25D366; }
.floating-btn--call { background: var(--color-brand-500); }
.floating-btn--aula { background: var(--color-navy-700); }
.floating-btn--top { background: var(--color-neutral-700); }

/* Footer */
.site-footer { background: var(--color-navy-900); color: var(--color-neutral-200); padding-top: var(--space-16); }
.site-footer h4 { color: var(--color-white); font-size: var(--fs-body-lg); margin-bottom: var(--space-4); }
.site-footer p { color: var(--color-neutral-200); }
.site-footer a { color: var(--color-neutral-200); }
.site-footer a:hover { color: var(--color-brand-sky); }

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
}
.site-footer__logo { height: 48px; width: auto; margin-bottom: var(--space-4); filter: brightness(0) invert(1); }
.site-footer__social { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.site-footer__social a {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-small);
}
.site-footer__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }

.site-footer__bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-block: var(--space-6); }
.site-footer__bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-3); }
.site-footer__bottom p { margin: 0; font-size: var(--fs-small); }
.site-footer__legal { display: flex; gap: var(--space-4); font-size: var(--fs-small); }

@media (max-width: 900px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}