/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
  /* Colors - Warm and welcoming for daycare */
  --color-primary: #4A90E2;        /* Trustworthy blue */
  --color-primary-dark: #357ABD;
  --color-secondary: #F7B731;      /* Warm yellow/orange */
  --color-accent: #6FCF97;         /* Friendly green */
  --color-text: #2C3E50;           /* Dark blue-gray */
  --color-text-light: #5A6C7D;
  --color-background: #FFFFFF;
  --color-background-alt: #F8F9FA;
  --color-border: #E1E8ED;

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 1rem;          /* 16px */
  --line-height-base: 1.6;
  --line-height-heading: 1.2;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;

  /* Container */
  --container-max-width: 1200px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.theme-dark {
  --color-primary: #4A90E2;
  --color-primary-dark: #2f6fa6;
  --color-secondary: #F7B731;
  --color-accent: #6FCF97;
  --color-text: #E6EDF3;
  --color-text-light: #C0CCD9;
  --color-background: #0f1724;
  --color-background-alt: #152038;
  --color-border: #22304a;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.35);
  background-color: var(--color-background);
  color: var(--color-text);
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, textarea, select {
  font: inherit;
}

/* ========================================
   Accessibility
   ======================================== */

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  text-decoration: none;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  top: 0;
}

/* Focus styles - high visibility for keyboard users */
:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

/* Mobile-first heading sizes (friendlier for small screens) */
h1 { font-size: 2rem; line-height: 1.25; }
h2 { font-size: 1.5rem; line-height: 1.3; }
h3 { font-size: 1.25rem; line-height: 1.35; }
h4 { font-size: 1.15rem; line-height: 1.4; }
h5 { font-size: 1.05rem; line-height: 1.4; }
h6 { font-size: 1rem; line-height: 1.4; }

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ========================================
   Layout
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  gap: var(--spacing-sm);
}

.logo {
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
}

.logo-name {
  font-size: 0.875rem;
  font-weight: 700;
}

.logo-tagline {
  font-size: 0.65rem;
  font-weight: 500;
  opacity: 0.8;
}

.lang-switcher {
  margin-left: auto;
}

.logo:hover {
  color: var(--color-primary-dark);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 60;
}

.mobile-menu-toggle .hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: background var(--transition-base);
}

.mobile-menu-toggle .hamburger::before,
.mobile-menu-toggle .hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  left: 0;
  transition: transform var(--transition-base);
}

.mobile-menu-toggle .hamburger::before {
  top: -8px;
}

.mobile-menu-toggle .hamburger::after {
  bottom: -8px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg);
  bottom: 0;
}

.theme-toggle {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
}

.theme-toggle:hover {
  background: var(--color-border);
}

/* Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--color-background);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  padding-top: 80px;
  z-index: 40;
}

.main-nav.active {
  transform: translateX(0);
}

.nav-list {
  list-style: none;
  padding: var(--spacing-md);
}

.nav-item {
  margin-bottom: var(--spacing-sm);
}

.nav-link {
  display: block;
  padding: var(--spacing-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.125rem;
  transition: color var(--transition-base), background var(--transition-base);
  border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-background-alt);
}

/* Desktop Navigation */
@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }

  .logo-name {
    font-size: 1.125rem;
  }

  .logo-tagline {
    font-size: 0.75rem;
  }

  .main-nav {
    position: static;
    width: auto;
    height: auto;
    background: none;
    transform: none;
    padding: 0;
  }

  .nav-list {
    display: flex;
    gap: var(--spacing-xs);
    padding: 0;
  }

  .nav-item {
    margin: 0;
  }

  .nav-link {
    font-size: 1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* ========================================
   Language Switcher
   ======================================== */
.lang-switcher {
  display: flex;
  gap: var(--spacing-xs);
  padding: 0;
  margin: 0;
  order: 3;
}

.lang-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  background: var(--color-background);
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.75rem;
}

.lang-link .flag-icon {
  flex-shrink: 0;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  width: 20px;
  height: 10px;
}

.lang-link .lang-text {
  white-space: nowrap;
}

.lang-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  background: var(--color-background-alt);
}

@media (min-width: 768px) {
  .lang-link {
    padding: 8px 14px;
    font-size: 0.9rem;
  }

  .lang-link .flag-icon {
    width: 28px;
    height: 14px;
  }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  line-height: 1.5;
}

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

.btn-primary:hover {
  background: #E5A622;
  color: var(--color-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1.125rem;
}

/* ========================================
   Hero Section
   ======================================== */
 .hero {
  position: relative;
  background: linear-gradient(135deg, rgba(74, 144, 226, 0.35), rgba(53, 122, 189, 0.35));
  color: white;
  padding: var(--spacing-xl) 0;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/images/BackgroundHome.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: blur(3px);
  opacity: 0.4;
  z-index: -1;
}

.hero h1 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: 2rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.95;
}

@media (min-width: 768px) {
  /* Restore larger headings on tablet/desktop */
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }

  .hero h1 {
    font-size: 3rem;
  }
}

/* ========================================
   Sections
   ======================================== */
.section {
  padding: var(--spacing-lg) 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 1.25rem;
}

/* Welcome intro text slightly larger than body */
.welcome-text {
  font-size: 1.2rem;
  line-height: 1.7;
}

/* ========================================
   Carousel (Impressionen)
   ======================================== */
.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.carousel-track {
  display: flex;
  transition: transform 0.6s ease;
  will-change: transform;
}

.carousel-slide {
  min-width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-background-alt);
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  transition: background var(--transition-base);
}

.carousel-control:hover {
  background: rgba(0, 0, 0, 0.55);
}

.carousel-control.prev { left: 12px; }
.carousel-control.next { right: 12px; }

.carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.carousel-dot.active {
  background: #fff;
  transform: scale(1.15);
}

@media (max-width: 767px) {
  .carousel-control {
    width: 34px;
    height: 34px;
    font-size: 1.25rem;
  }
}

/* Funding note */
.funding-note {
  font-size: 0.95rem;
  color: var(--color-text-light);
  max-width: 720px;
  margin: 0 auto;
}

/* ========================================
   Cards
   ======================================== */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Gallery grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  display: block;
}

.card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.card img {
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
}

.card ul, .card ol {
  padding-left: var(--spacing-lg);
  margin-left: var(--spacing-sm);
}

.card li {
  margin-bottom: var(--spacing-xs);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: var(--color-text);
  color: white;
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-col h3 {
  color: var(--color-secondary);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.footer-address {
  font-style: normal;
  line-height: 1.8;
}

.footer-col a {
  color: white;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--color-secondary);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.hours-list {
  line-height: 1.8;
}

.hours-list dt {
  font-weight: 600;
  margin-top: var(--spacing-xs);
}

.hours-list dd {
  margin-left: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.9);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom a:hover {
  color: white;
}

/* Dark mode footer override */
.theme-dark .site-footer {
  background: #0a0f18;
  color: #E6EDF3;
}

.theme-dark .footer-col a {
  color: #E6EDF3;
}

.theme-dark .footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.1);
}

/* ========================================
   Forms
   ======================================== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: border-color var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  outline: none;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* Required field indicator */
.required {
  color: #E74C3C;
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
  text-align: center;
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #0066CC;
    --color-text: #000000;
    --color-border: #000000;
  }

  .btn {
    border: 2px solid currentColor;
  }
}