/* ============================================================
   layout.css — Header, footer, grid system
   ============================================================ */

/* ----- Header ----- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--sp-5) 0;
  transition: background var(--t-base), padding var(--t-base), box-shadow var(--t-base);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  padding: var(--sp-3) 0;
  box-shadow: 0 1px 0 var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--primary-deep);
}
.site-logo img { height: 44px; width: auto; display: block; transition: height var(--t-base); }
.site-header.is-scrolled .site-logo img { height: 36px; }

.site-nav { display: flex; align-items: center; gap: var(--sp-5); }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}
.site-nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  padding: var(--sp-2) 0;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  transition: right var(--t-base);
}
.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after { right: 0; }
.site-nav__link[aria-current="page"] { color: var(--primary-deep); font-weight: 600; }

.site-nav__dropdown {
  position: relative;
}
.site-nav__dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}
.site-nav__dropdown-trigger::after {
  content: "▾";
  font-size: 10px;
  transition: transform var(--t-fast);
}
.site-nav__dropdown[open] .site-nav__dropdown-trigger::after,
.site-nav__dropdown .site-nav__dropdown-trigger[aria-expanded="true"]::after { transform: rotate(180deg); }
.site-nav__dropdown-menu {
  position: absolute;
  top: 100%; left: 0;
  margin-top: var(--sp-3);
  min-width: 220px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  padding: var(--sp-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
}
.site-nav__dropdown[open] .site-nav__dropdown-menu,
.site-nav__dropdown:hover .site-nav__dropdown-menu,
.site-nav__dropdown:focus-within .site-nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.site-nav__dropdown-menu a {
  display: block;
  padding: var(--sp-3) var(--sp-5);
  font-size: 14px;
  color: var(--ink);
}
.site-nav__dropdown-menu a:hover { background: var(--primary-tint); color: var(--primary); }

.site-header__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--primary);
  color: var(--white);
  padding: 10px 22px;
  border-radius: var(--r-full);
  font-size: 14px;
  font-weight: 600;
  transition: background var(--t-fast), transform var(--t-fast);
}
.site-header__cta:hover {
  background: var(--primary-deep);
  color: var(--white);
  transform: translateY(-1px);
}

/* Burger button */
.nav-burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.nav-burger__bars {
  position: relative;
  width: 22px;
  height: 14px;
}
.nav-burger__bars::before,
.nav-burger__bars::after,
.nav-burger__bars span {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform var(--t-base), opacity var(--t-fast);
}
.nav-burger__bars::before { top: 0; }
.nav-burger__bars span { top: 6px; }
.nav-burger__bars::after { bottom: 0; }
.nav-burger[aria-expanded="true"] .nav-burger__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] .nav-burger__bars span { opacity: 0; }
.nav-burger[aria-expanded="true"] .nav-burger__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* ----- Mobile menu overlay ----- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--white);
  padding: 100px var(--container-pad) 40px;
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  transform: translateY(-100%);
  transition: transform var(--t-base);
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateY(0); }
.mobile-menu__link {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  color: var(--ink);
  display: block;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu__link[aria-current="page"] { color: var(--primary); }
.mobile-menu__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  padding: 16px 28px;
  border-radius: var(--r-full);
  font-weight: 600;
}

/* ----- Footer enriquecido (5 cols: brand + nav + empresa + centros + contacto) ----- */
.site-footer {
  background: var(--accent-deep);
  color: rgba(255, 255, 255, 0.88);
  padding: var(--sp-10) 0 var(--sp-5);
  margin-top: var(--sp-10);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 160, 218, 0.12) 0%, transparent 70%);
  pointer-events: none;
}
.site-footer .container { position: relative; z-index: 1; }

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 0.9fr 0.9fr 1.2fr 1.1fr;
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}
.site-footer__brand h3 {
  color: var(--white);
  font-size: 24px;
  margin-bottom: var(--sp-3);
}
.site-footer__logo {
  height: 52px;
  width: auto;
  margin-bottom: var(--sp-4);
  filter: brightness(0) invert(1);
}
.site-footer__brand p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  line-height: 1.6;
  max-width: 32ch;
  margin-bottom: var(--sp-5);
}

.site-footer__col h4 {
  color: var(--white);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--sp-4);
  position: relative;
  padding-bottom: var(--sp-3);
}
.site-footer__col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}
.site-footer__col ul li {
  margin-bottom: var(--sp-2);
  line-height: 1.5;
}
.site-footer__col a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  transition: color var(--t-fast), padding-left var(--t-fast);
  display: inline-block;
}
.site-footer__col a:hover {
  color: var(--white);
  padding-left: 4px;
}

/* Columna de centros — direcciones */
.site-footer__centers li {
  margin-bottom: var(--sp-4);
  padding-left: 0;
}
.site-footer__centers strong {
  display: block;
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 4px;
}
.site-footer__centers span {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.5;
}
.site-footer__centers .hours {
  color: var(--primary);
  font-size: 12px;
  margin-top: 4px;
  font-weight: 500;
}

/* Social icons */
.site-footer__social {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}
.site-footer__social a {
  width: 38px; height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.85);
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.site-footer__social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  padding-left: 0;
}
.site-footer__social svg { width: 16px; height: 16px; fill: currentColor; }

/* Bottom row con legal */
.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--sp-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}
.site-footer__bottom-links {
  display: flex;
  gap: var(--sp-5);
  flex-wrap: wrap;
}
.site-footer__bottom-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  transition: color var(--t-fast);
}
.site-footer__bottom-links a:hover { color: var(--white); }

/* ----- WhatsApp float ----- */
.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
  z-index: 95;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.wa-float:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
  color: #fff;
}
.wa-float svg { width: 28px; height: 28px; fill: currentColor; }

/* ----- Scroll progress bar ----- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--primary);
  width: 0%;
  z-index: 101;
  transition: width 50ms linear;
}