/* =========================================================
   LAYOUT.CSS — Header, Footer, Grid, Containers
   Radar Hipoteca | radarhipoteca.es
   ========================================================= */

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

.container--narrow {
  max-width: var(--container-content);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

/* --- Main Content --- */
main {
  min-height: calc(100vh - var(--header-height));
}

/* --- Page Wrapper with Sidebar --- */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-2xl);
  align-items: start;
}

.layout-content {
  min-width: 0;
}

.layout-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.site-logo__text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.site-logo__text span {
  color: var(--color-blue);
}

/* Main Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.site-nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-blue);
  background-color: #eff6ff;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
  border: none;
  background: none;
  border-radius: var(--radius-md);
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background-color: var(--color-surface);
  z-index: 99;
  padding: var(--space-xl);
  flex-direction: column;
  gap: var(--space-sm);
  border-top: 1px solid var(--color-border);
  overflow-y: auto;
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav__link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

.mobile-nav__link:hover {
  background-color: var(--color-bg);
  color: var(--color-blue);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background-color: #111827;
  color: #9ca3af;
  padding: var(--space-3xl) 0 var(--space-xl);
  margin-top: var(--space-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-col__title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: #f9fafb;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.footer-col__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer-col__logo-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: #ffffff;
}

.footer-col__logo-text span {
  color: #60a5fa;
}

.footer-col__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #9ca3af;
  margin-bottom: var(--space-lg);
}

.footer-col__disclaimer {
  font-size: 0.75rem;
  color: #6b7280;
  background-color: #1f2937;
  border: 1px solid #374151;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  line-height: 1.5;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-nav__link {
  font-size: 0.875rem;
  color: #9ca3af;
  transition: color var(--transition-fast);
}

.footer-nav__link:hover {
  color: #ffffff;
}

.footer-contact__item {
  font-size: 0.875rem;
  color: #9ca3af;
  margin-bottom: var(--space-sm);
}

.footer-contact__item a {
  color: #60a5fa;
}

.footer-contact__item a:hover {
  color: #93c5fd;
}

.footer-bottom {
  border-top: 1px solid #1f2937;
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-bottom__copy {
  font-size: 0.8125rem;
  color: #6b7280;
}

.footer-bottom__links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom__links a {
  font-size: 0.8125rem;
  color: #6b7280;
  transition: color var(--transition-fast);
}

.footer-bottom__links a:hover {
  color: #9ca3af;
}

/* =========================================================
   SECTION LAYOUTS
   ========================================================= */
.section {
  padding: var(--space-3xl) 0;
}

.section--bg {
  background-color: var(--color-surface);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-inline: auto;
}

/* Grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  padding: var(--space-md) 0;
  flex-wrap: wrap;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.breadcrumb__item:not(:last-child)::after {
  content: '/';
  color: var(--color-border);
}

.breadcrumb__link {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-blue);
}

.breadcrumb__current {
  color: var(--color-text);
  font-weight: 500;
}

/* Page Header */
.page-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
}

.page-header__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.page-header__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
}