/* ===================================================================
   COMPONENTS CSS - UI Components with WCAG AA compliance
   =================================================================== */

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-fixed);
  background: var(--bg-primary);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.header-top {
  background: var(--primary);
  color: var(--text-on-primary);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
}

.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.header-info,
.header-actions {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.header-link {
  color: var(--text-on-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: var(--transition);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.header-link:hover {
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.header-link svg {
  flex-shrink: 0;
}

.header-main {
  padding: var(--space-4) 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.logo-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: var(--text-xl);
  color: var(--primary);
  margin: 0;
  line-height: 1.2;
}

.logo-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
}

/* Navigation */
.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--text-primary);
  font-weight: var(--font-medium);
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--gray-100);
  color: var(--primary);
  text-decoration: none;
}

.nav-link.active,
.nav-link[aria-current="page"] {
  background: var(--primary);
  color: var(--text-on-primary);
}

/* Language Switcher */
.header-utilities {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.language-switcher {
  display: flex;
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: var(--space-1);
}

.lang-btn {
  padding: var(--space-2) var(--space-4);
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.lang-btn:hover {
  background: var(--gray-200);
}

.lang-btn.active {
  background: var(--primary);
  color: var(--text-on-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: var(--space-2);
  transition: var(--transition);
}

.mobile-menu-toggle:hover {
  background: var(--gray-100);
  border-color: var(--primary);
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: fixed;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  box-shadow: var(--shadow-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
  z-index: var(--z-dropdown);
}

.mobile-nav.active {
  max-height: 80vh;
  overflow-y: auto;
}

.mobile-nav-menu {
  list-style: none;
  padding: var(--space-4);
  margin: 0;
}

.mobile-nav-menu li {
  border-bottom: 1px solid var(--border);
}

.mobile-nav-menu li:last-child {
  border-bottom: none;
}

.mobile-link {
  display: block;
  padding: var(--space-4);
  color: var(--text-primary);
  font-weight: var(--font-medium);
  transition: var(--transition);
  min-height: 44px;
}

.mobile-link:hover {
  background: var(--gray-50);
  color: var(--primary);
  text-decoration: none;
}

.mobile-link[aria-current="page"] {
  background: var(--primary-light);
  color: white;
}

/* ============================================
   BREADCRUMBS
   ============================================ */
.breadcrumbs {
  background: var(--bg-secondary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  font-size: var(--text-sm);
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
}

.breadcrumb-list a {
  color: var(--primary);
  text-decoration: underline;
}

.breadcrumb-list a:hover {
  color: var(--primary-hover);
}

.breadcrumb-list [aria-current="page"] {
  color: var(--text-muted);
}

.breadcrumb-separator {
  color: var(--text-muted);
  padding: 0 var(--space-1);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  min-height: 44px;
  min-width: 44px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--primary);
  color: var(--text-on-primary);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: var(--text-on-primary);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--text-on-primary);
}

.btn-accent {
  background: var(--accent);
  color: var(--text-on-accent);
  border-color: var(--accent);
}

.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--text-on-accent);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-block {
  width: 100%;
  display: flex;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-6);
  transition: var(--transition);
  height: 100%;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-4);
  display: block;
}

.card-title {
  color: var(--primary);
  margin-bottom: var(--space-3);
  font-size: var(--text-xl);
}

.card-text {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: 0;
}

/* ============================================
   GRID
   ============================================ */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--text-on-primary);
  padding: var(--space-24) var(--space-6);
  text-align: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.85), rgba(30, 64, 175, 0.75));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-6);
  color: var(--text-on-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: var(--text-xl);
  margin-bottom: var(--space-8);
  opacity: 0.95;
  line-height: var(--leading-relaxed);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   STATS
   ============================================ */
.stats-section {
  padding: var(--space-12) 0;
  background: var(--bg-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  text-align: center;
}

.stat-item {
  padding: var(--space-6);
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--primary);
  display: block;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  font-weight: var(--font-medium);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-weight: var(--font-medium);
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.form-label[required]::after {
  content: ' *';
  color: var(--error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: var(--transition);
  min-height: 44px;
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: var(--border-hover);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.valid {
  border-color: var(--success);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--error);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.error-message {
  display: block;
  color: var(--error-dark);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--error);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--bg-dark);
  color: var(--gray-400);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-title {
  color: white;
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.footer-text {
  color: var(--gray-400);
  line-height: var(--leading-relaxed);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--gray-400);
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
  text-decoration: underline;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: white;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary);
  transform: translateY(-2px);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: var(--space-8);
  text-align: center;
}

.footer-bottom p {
  margin-bottom: var(--space-2);
  color: var(--gray-400);
  font-size: var(--text-sm);
}

.footer-credit {
  font-size: var(--text-xs);
  opacity: 0.8;
}

/* ============================================
   WHATSAPP FLOAT BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-sticky);
  opacity: 0;
  transform: scale(0);
  transition: all var(--transition-slow);
}

.whatsapp-float.show {
  opacity: 1;
  transform: scale(1);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
  text-decoration: none;
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
}

.whatsapp-pulse {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-full);
  background: #25D366;
  animation: pulse 2s infinite;
  pointer-events: none;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.3);
    opacity: 0;
  }
}

.call-float {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-sticky);
  opacity: 0;
  transform: scale(0);
  transition: all var(--transition-slow);
}

.call-float.show {
  opacity: 1;
  transform: scale(1);
}

.call-float:hover {
  transform: scale(1.1);
  background: var(--primary-hover);
  text-decoration: none;
}

.call-float svg {
  width: 24px;
  height: 24px;
}