/* ============================================================
   layout.css — Estructura común a todas las páginas
   Contenedor y secciones · header + navegación + submenú ·
   menú móvil · barra fija móvil · footer
   ============================================================ */

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--section-y); position: relative; }
.section--surface { background: var(--surface); }
.section--tight { padding-block: clamp(56px, 3rem + 3vw, 96px); }

/* ================= HEADER ================= */
.hdr {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  transition:
    background-color var(--t-base) var(--ease),
    box-shadow var(--t-base) var(--ease),
    transform 450ms var(--ease-out-expo);
}
/* Al bajar: fondo blanco translúcido con desenfoque y línea sutil */
.hdr.is-scrolled {
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  box-shadow: 0 1px 0 rgba(11, 42, 69, 0.06), 0 8px 24px rgba(11, 42, 69, 0.04);
}
/* Solo en móvil se esconde al bajar (la barra fija inferior toma el relevo) */
.hdr.is-hidden { transform: translateY(-100%); }

.hdr__bar {
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--s-6);
}
.hdr__logo { display: block; flex-shrink: 0; }
.hdr__logo img { height: 40px; width: auto; }

.nav { display: none; margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 4px; list-style: none; padding: 0; }
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--r-full);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}
.nav__link:hover, .nav__item.is-open > .nav__link { color: var(--blue); background: var(--blue-50); }
.nav__link[aria-current="page"] { color: var(--blue); }
.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  border-radius: 50%;
  background: var(--brand);
}
.nav__link .i--chev { width: 16px; height: 16px; transition: transform var(--t-base) var(--ease); }
.nav__item.is-open .i--chev { transform: rotate(180deg); }

/* Submenú "Servicios" */
.nav__item { position: relative; }
.nav__menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  width: 560px;
  padding: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  border-radius: var(--r-lg);
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 8px);
  transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease), visibility 0s linear var(--t-base);
}
.nav__menu::before { /* puente invisible para que el hover no se corte */
  content: "";
  position: absolute;
  inset: -12px 0 auto 0;
  height: 12px;
}
.nav__item.is-open .nav__menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  transition-delay: 0s;
}
.menu-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px;
  border-radius: var(--r-md);
  transition: background-color var(--t-fast) var(--ease);
}
.menu-card:hover, .menu-card:focus-visible { background: var(--surface); }
.menu-card:hover .icon-tile { background: var(--blue); color: var(--on-dark); }
.menu-card .icon-tile { width: 42px; height: 42px; border-radius: 12px; }
.menu-card .icon-tile .i { width: 20px; height: 20px; }
.menu-card strong { display: flex; align-items: center; gap: 6px; font-size: 0.9375rem; color: var(--ink); }
.menu-card strong .i { width: 14px; height: 14px; color: var(--text-soft); }
.menu-card > span:last-child > span { display: block; margin-top: 2px; font-size: var(--fs-caption); line-height: 1.45; color: var(--text-soft); }

.hdr__actions { display: flex; align-items: center; gap: var(--s-2); margin-left: auto; }
/* Portal de pacientes: visible en todos los tamaños; en teléfonos pequeños dice solo "Portal" */
.hdr__portal-short { display: none; }
@media (max-width: 479px) {
  .hdr__portal { padding: 0 14px; }
  .hdr__portal-long { display: none; }
  .hdr__portal-short { display: inline; }
}

.burger {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-right: -8px;
  border-radius: var(--r-full);
  color: var(--ink);
}
.burger__lines { position: relative; width: 22px; height: 14px; }
.burger__lines::before, .burger__lines::after, .burger__lines span {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--t-base) var(--ease), opacity var(--t-fast) var(--ease), top var(--t-base) var(--ease);
}
.burger__lines::before { top: 0; }
.burger__lines span { top: 6px; }
.burger__lines::after { top: 12px; }
.burger[aria-expanded="true"] .burger__lines::before { top: 6px; transform: rotate(45deg); }
.burger[aria-expanded="true"] .burger__lines span { opacity: 0; }
.burger[aria-expanded="true"] .burger__lines::after { top: 6px; transform: rotate(-45deg); }

@media (min-width: 1080px) {
  .nav { display: block; }
  .hdr__actions { margin-left: 0; }
  .burger { display: none; }
}
@media (min-width: 1080px) and (max-width: 1239px) {
  .nav__link { padding: 0 11px; }
}

/* ================= MENÚ MÓVIL (pantalla completa) ================= */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h) + 8px) var(--gutter) calc(24px + env(safe-area-inset-bottom));
  background: var(--bg);
  overflow-y: auto;
  overscroll-behavior: contain;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease), visibility 0s linear var(--t-base);
}
.drawer.is-open { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.drawer__nav { display: grid; }
.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  border-bottom: 1px solid var(--line);
  font-size: 1.375rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.drawer__link .i { width: 20px; height: 20px; color: var(--text-soft); }
.drawer__link[aria-current="page"] { color: var(--blue); }
.drawer__sub { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 12px 0 16px; border-bottom: 1px solid var(--line); }
.drawer__sub a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 8px 12px;
  border-radius: var(--r-md);
  background: var(--surface);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--ink);
}
.drawer__sub .i { width: 18px; height: 18px; color: var(--blue); }
.drawer__actions { display: grid; gap: 10px; margin-top: auto; padding-top: var(--s-7); }
.drawer__actions .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
/* Entrada escalonada de los enlaces al abrir */
.drawer .drawer__nav > *, .drawer .drawer__actions {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 400ms var(--ease), transform 500ms var(--ease);
}
.drawer.is-open .drawer__nav > *, .drawer.is-open .drawer__actions { opacity: 1; transform: none; }
.drawer.is-open .drawer__nav > :nth-child(2) { transition-delay: 40ms; }
.drawer.is-open .drawer__nav > :nth-child(3) { transition-delay: 80ms; }
.drawer.is-open .drawer__nav > :nth-child(4) { transition-delay: 120ms; }
.drawer.is-open .drawer__nav > :nth-child(5) { transition-delay: 160ms; }
.drawer.is-open .drawer__nav > :nth-child(6) { transition-delay: 200ms; }
.drawer.is-open .drawer__nav > :nth-child(n+7) { transition-delay: 240ms; }
.drawer.is-open .drawer__actions { transition-delay: 260ms; }
@media (min-width: 1080px) { .drawer { display: none; } }
body.menu-open { overflow: hidden; }
body.menu-open .hdr { background: var(--bg); box-shadow: 0 1px 0 var(--line); transform: none; }

/* ================= BARRA FIJA MÓVIL ================= */
/* Aparece tras el hero. Cuando está visible, la burbuja del chat (cerrada) se
   apoya encima de la barra en vez de taparla (main.js: html.mbar-on/.chat-docked). */
.mbar {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(14px + env(safe-area-inset-bottom));
  z-index: 90;
  display: flex;
  gap: 8px;
  padding: 6px;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  transform: translateY(calc(100% + 24px));
  transition: transform 500ms var(--ease-out-expo);
}
.mbar.is-visible { transform: none; }
.mbar .btn { flex: 1; min-height: 48px; padding: 0 16px; }
.mbar .icon-btn { width: 48px; height: 48px; border: 0; background: var(--blue-50); color: var(--blue); }
.mbar .icon-btn--wa { background: #E7F6EE; color: var(--whatsapp); }
@media (min-width: 1080px) { .mbar { display: none; } }
@media (max-width: 1079px) {
  html .central-chat-container { transition: bottom 500ms var(--ease-out-expo) !important; }
  html.mbar-on.chat-docked .central-chat-container { bottom: calc(80px + env(safe-area-inset-bottom)) !important; }
  body.menu-open .central-chat-container { visibility: hidden !important; }
}
body.menu-open .mbar { transform: translateY(calc(100% + 24px)); }

/* ================= FOOTER ================= */
.ftr {
  position: relative;
  background: var(--navy-900);
  color: var(--on-dark-soft);
  padding: clamp(64px, 8vw, 96px) 0 calc(28px + env(safe-area-inset-bottom));
  font-size: var(--fs-small);
  overflow: hidden;
}
.ftr::before { /* luz azul muy tenue en la esquina */
  content: "";
  position: absolute;
  width: 640px;
  height: 640px;
  right: -240px;
  top: -320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 160, 218, 0.14), transparent 65%);
  pointer-events: none;
}
.ftr__grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-8) var(--s-6); }
.ftr__brand, .ftr__col--wide { grid-column: 1 / -1; }
.ftr__brand img { height: 40px; width: auto; filter: brightness(0) invert(1); }
.ftr__brand p { margin-top: var(--s-5); max-width: 34ch; line-height: 1.6; }
.ftr__social { display: flex; gap: 10px; margin-top: var(--s-6); }
.ftr__social a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--on-dark);
  transition: background-color var(--t-base) var(--ease), border-color var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.ftr__social a:hover { background: var(--blue); border-color: var(--blue); transform: translateY(-2px); }
.ftr__social .i { width: 18px; height: 18px; }
.ftr__col h2 {
  font-size: var(--fs-caption);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-dark);
  margin-bottom: var(--s-5);
}
.ftr__col ul { list-style: none; padding: 0; display: grid; gap: 12px; }
.ftr__col a { transition: color var(--t-fast) var(--ease); overflow-wrap: anywhere; }
.ftr__col a[href^="mailto"] { font-size: 0.875rem; }
.ftr__col li > a:has(> .i) { display: inline-flex; align-items: flex-start; gap: 8px; }
.ftr__col li > a > .i { margin: 3px 0 0; flex-shrink: 0; }
.ftr__col a:hover { color: var(--on-dark); }
.ftr__col .i { width: 16px; height: 16px; display: inline; vertical-align: -3px; margin-right: 6px; color: var(--brand); }
.ftr__branch strong { display: block; color: var(--on-dark); font-weight: 600; }
.ftr__branch span { display: block; font-size: var(--fs-caption); }
.ftr__bottom {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-4);
  margin-top: clamp(48px, 6vw, 72px);
  padding-top: var(--s-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--fs-caption);
}
.ftr__bottom nav { display: flex; flex-wrap: wrap; gap: var(--s-6); }
.ftr__bottom a:hover { color: var(--on-dark); }
@media (min-width: 720px) { .ftr__grid { grid-template-columns: 1fr 1fr 1fr; } .ftr__brand { grid-column: 1 / -1; } .ftr__col--wide { grid-column: auto; } }
@media (min-width: 1080px) { .ftr__grid { grid-template-columns: 1.3fr 0.75fr 0.9fr 1.15fr 1.3fr; gap: var(--s-7); } .ftr__brand { grid-column: auto; } }
/* En móvil el footer deja espacio para la barra fija */
@media (max-width: 1079px) { .ftr { padding-bottom: calc(100px + env(safe-area-inset-bottom)); } }