/* ==========================================================================
   Makgwe Primary School - Main Stylesheet
   A comprehensive CSS design system for a South African primary school
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Inspired by South African landscapes */
  --color-primary: #1a5f7a;
  --color-primary-dark: #134a5f;
  --color-primary-light: #2d8cb8;
  --color-secondary: #e8a838;
  --color-secondary-dark: #c78c2a;
  --color-accent: #57a773;
  --color-accent-light: #7bc394;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-off-white: #f8f9fa;
  --color-light-gray: #e9ecef;
  --color-gray: #6c757d;
  --color-dark-gray: #495057;
  --color-dark: #212529;
  --color-black: #000000;
  
  /* Semantic Colors */
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-danger: #dc3545;
  --color-info: #17a2b8;
  
  /* Typography */
  --font-primary: 'Outfit', 'Segoe UI', Tahoma, sans-serif;
  --font-secondary: 'Inter', 'Segoe UI', Tahoma, sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Layout */
  --header-height: 120px;
  --top-bar-height: 40px;
  --nav-height: 70px;
  --container-max: 1200px;
  --container-padding: 1.5rem;
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-white);
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--font-bold);
  line-height: 1.2;
  color: var(--color-dark);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-4xl) 0;
}

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

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: var(--color-dark);
  box-shadow: var(--shadow-md);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
}

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

/* --------------------------------------------------------------------------
   Header - Top Bar
   -------------------------------------------------------------------------- */
.top-bar {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  height: var(--top-bar-height);
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
}

.top-bar__logo {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.top-bar__name {
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.top-bar__contact {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.top-bar__contact a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-white);
  font-size: var(--text-sm);
  opacity: 0.9;
  transition: opacity var(--transition-fast);
}

.top-bar__contact a:hover {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Header - Navigation
   -------------------------------------------------------------------------- */
.navbar {
  background: var(--color-white);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  position: fixed;
  top: var(--top-bar-height);
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.navbar__logo {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar__title {
  font-family: var(--font-primary);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
}

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

.navbar__link {
  position: relative;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-dark-gray);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-normal);
}

.navbar__link:hover,
.navbar__link--active {
  color: var(--color-primary);
  background: rgba(26, 95, 122, 0.05);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  transform: translateX(-50%) scaleX(1);
}

/* Mobile Menu Toggle */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
}

.navbar__toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.hero__carousel {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero__slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.hero__slide--active {
  opacity: 1;
}

.hero__slide-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(26, 95, 122, 0.85) 0%,
    rgba(87, 167, 115, 0.7) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__content {
  text-align: center;
  color: var(--color-white);
  padding: var(--space-xl);
  max-width: 800px;
}

.hero__badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero__title {
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero__subtitle {
  font-size: var(--text-xl);
  opacity: 0.95;
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Carousel Controls */
.carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-size: var(--text-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  z-index: 10;
}

.carousel__arrow:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.1);
}

.carousel__arrow--prev { left: var(--space-xl); }
.carousel__arrow--next { right: var(--space-xl); }

.carousel__dots {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  z-index: 10;
}

.carousel__dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.carousel__dot--active,
.carousel__dot:hover {
  background: var(--color-white);
  transform: scale(1.2);
}

/* --------------------------------------------------------------------------
   Page Hero (for inner pages)
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  height: 400px;
  margin-top: var(--header-height);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-hero__content {
  text-align: center;
  color: var(--color-white);
  position: relative;
  z-index: 1;
}

.page-hero__title {
  font-size: var(--text-4xl);
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  opacity: 0.9;
}

.page-hero__breadcrumb a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-header__badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white);
  padding: var(--space-xs) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-header__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
}

.section-header__subtitle {
  color: var(--color-gray);
  font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   Content Blocks (Image + Text Layout)
   -------------------------------------------------------------------------- */
.content-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  padding: var(--space-3xl) 0;
}

.content-block--reverse .content-block__image {
  order: 2;
}

.content-block__image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.content-block__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.content-block__image:hover img {
  transform: scale(1.05);
}

.content-block__image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(26, 95, 122, 0.2), transparent);
  pointer-events: none;
}

.content-block__text h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.content-block__text h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.content-block__text p {
  color: var(--color-dark-gray);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.content-block__text ul {
  margin-bottom: var(--space-lg);
}

.content-block__text li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  color: var(--color-dark-gray);
}

.content-block__text li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: var(--font-bold);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Feature Cards
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-light-gray);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.feature-card__icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.feature-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.feature-card__text {
  color: var(--color-gray);
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Staff Cards
   -------------------------------------------------------------------------- */
.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.staff-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.staff-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.staff-card__image {
  height: 250px;
  overflow: hidden;
}

.staff-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.staff-card__content {
  padding: var(--space-xl);
}

.staff-card__name {
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.staff-card__title {
  color: var(--color-secondary);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
}

.staff-card__bio {
  color: var(--color-gray);
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.staff-card__email {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-primary);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.staff-card__email:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.contact-info__icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--color-white);
  flex-shrink: 0;
}

.contact-info__content h4 {
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.contact-info__content p {
  color: var(--color-gray);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.contact-info__content a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.contact-info__content a:hover {
  color: var(--color-accent);
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  height: 300px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Contact Form */
.contact-form {
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-form h3 {
  font-size: var(--text-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: var(--font-medium);
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-light-gray);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: linear-gradient(135deg, var(--color-dark), var(--color-primary-dark));
  color: var(--color-white);
  padding-top: var(--space-4xl);
}

.footer__main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

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

.footer__logo-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer__logo-text {
  font-family: var(--font-primary);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  line-height: 1.8;
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-secondary);
  color: var(--color-dark);
  transform: translateY(-3px);
}

.footer__column h4 {
  font-size: var(--text-lg);
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-sm);
}

.footer__column h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-secondary);
}

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

.footer__links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-white);
  padding-left: var(--space-sm);
}

.footer__bottom {
  padding: var(--space-xl) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
}

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

.footer__legal a {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: var(--color-white);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: var(--text-xl);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 999;
}

.back-to-top--visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* --------------------------------------------------------------------------
   Admission Timeline
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  padding-left: var(--space-3xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-3xl) + 8px);
  top: 5px;
  width: 18px;
  height: 18px;
  background: var(--color-white);
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-full);
}

.timeline__title {
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.timeline__text {
  color: var(--color-gray);
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .navbar__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .navbar__menu--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar__link {
    width: 100%;
    padding: var(--space-md);
    text-align: center;
  }

  .content-block {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .content-block--reverse .content-block__image {
    order: 0;
  }

  .footer__main {
    grid-template-columns: 1fr 1fr;
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.25rem;
    --text-4xl: 1.875rem;
    --text-3xl: 1.5rem;
    --space-4xl: 4rem;
    --space-3xl: 3rem;
  }

  .top-bar__name {
    display: none;
  }

  .hero {
    min-height: 500px;
  }

  .hero__title {
    font-size: var(--text-3xl);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }

  .carousel__arrow {
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
  }

  .carousel__arrow--prev { left: var(--space-md); }
  .carousel__arrow--next { right: var(--space-md); }

  .page-hero {
    height: 300px;
  }

  .page-hero__title {
    font-size: var(--text-2xl);
  }

  .footer__main {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__column h4::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer__links {
    align-items: center;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer__social {
    justify-content: center;
  }

  .staff-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .top-bar__contact {
    gap: var(--space-md);
  }

  .top-bar__contact span {
    display: none;
  }

  .hero__buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* Placeholder Image Styling */
.placeholder-image {
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: var(--text-lg);
  text-align: center;
  padding: var(--space-xl);
}

.hero__slide .placeholder-image {
  min-height: 100%;
}