:root {
  --color-primary: #3498DB;
  --color-background: #F2F2F2;
  --color-text: #2C3E50;
  --color-success: #2ECC71;
  --color-cta: #F1C40F;
  --color-white: #FFFFFF;
  --color-light-gray: #ECF0F1;
  --color-dark-gray: #7F8C8D;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

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

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

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

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

a:hover {
  color: var(--color-success);
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-12 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  max-width: 60%;
  word-break: break-word;
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.nav-links a:hover {
  background-color: var(--color-light-gray);
  color: var(--color-primary);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-light-gray);
  background-color: var(--color-white);
  line-height: 1;
}

.mobile-menu-toggle .icon-close {
  display: none;
}

.mobile-menu-toggle.is-open .icon-open {
  display: none;
}

.mobile-menu-toggle.is-open .icon-close {
  display: inline;
}

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2980B9 100%);
  color: var(--color-white);
  padding: calc(var(--spacing-xl) * 1.5) 0;
  min-height: 300px;
  display: flex;
  align-items: center;
  text-align: center;
}

.hero h1 {
  color: var(--color-white);
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease;
  line-height: 1.3;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
  animation: fadeInUp 1s ease;
  line-height: 1.6;
}

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  font-family: var(--font-body);
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-cta) 0%, #E67E22 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

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

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

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

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

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

section {
  padding: calc(var(--spacing-xl) * 1.2) 0;
}

.section-title {
  text-align: center;
  margin-bottom: calc(var(--spacing-lg) * 1.2);
  padding: var(--spacing-md) 0;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.section-title p {
  font-size: 1.1rem;
  color: var(--color-dark-gray);
  max-width: 600px;
  margin: 0 auto;
}

.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.card-content {
  flex-grow: 1;
  margin-bottom: var(--spacing-sm);
}

.card-footer {
  margin-top: auto;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-light-gray);
}

.course-card {
  position: relative;
  overflow: hidden;
}

.course-level {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background-color: var(--color-success);
  color: var(--color-white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
}

.course-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: var(--spacing-sm);
}

.tutor-card {
  text-align: center;
}

.tutor-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--spacing-sm);
  border: 4px solid var(--color-primary);
}

.tutor-rating {
  color: var(--color-cta);
  font-size: 1.1rem;
  margin: var(--spacing-xs) 0;
}

.tutor-specialties {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  justify-content: center;
  margin-top: var(--spacing-sm);
}

.specialty-tag {
  background-color: var(--color-light-gray);
  color: var(--color-text);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.testimonial-card {
  text-align: center;
  padding: var(--spacing-md);
}

.testimonial-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--spacing-sm);
  border: 3px solid var(--color-primary);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark-gray);
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-text);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-md);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-primary);
}

.feature-card h3 {
  margin-bottom: var(--spacing-xs);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--color-light-gray);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

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

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

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.faq-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  padding: var(--spacing-md);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--color-light-gray);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  justify-content: center;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  background-color: var(--color-white);
  border: 2px solid var(--color-light-gray);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

footer {
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

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

.footer-section h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--color-light-gray);
  display: block;
  margin-bottom: var(--spacing-xs);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-light-gray);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden {
  display: none;
}

.section-image-left {
  display: grid;
  grid-template-columns: 2fr ;
  gap: var(--spacing-lg);
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
  justify-content: center;
}

.section-image-left > div {
  display: flex;
  flex-direction: column;
}

.section-image-left img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.section-image-right {
  display: grid;
  grid-template-columns: 2fr ;
  gap: var(--spacing-lg);
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
  justify-content: center;
}

.section-image-right > div {
  display: flex;
  flex-direction: column;
}

.section-image-right img {
  order: 2;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.section-image-right .content {
  order: 1;
}

.section-image-center {
  text-align: center;
}

.section-image-center img {
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.35rem; }
  
  .hero {
    min-height: 280px;
    padding: calc(var(--spacing-lg) * 1.3) 0;
  }
  
  .hero h1 {
    font-size: 2rem;
    line-height: 1.3;
  }
  
  .hero p {
    font-size: 1.1rem;
    line-height: 1.5;
  }
  
  .section-title {
    padding: var(--spacing-sm) 0;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    align-items: flex-start;
    width: 100%;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  nav {
    gap: var(--spacing-xs);
  }
  
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  section {
    padding: var(--spacing-lg) 0;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .section-image-left,
  .section-image-right {
    grid-template-columns: 1fr;
  }
  
  .section-image-right img {
    order: 1;
  }
  
  .section-image-right .content {
    order: 2;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .card {
    padding: var(--spacing-sm);
  }
  
  .btn {
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 320px) {
  html {
    font-size: 12px;
  }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1.15rem; }
  
  .hero {
    padding: calc(var(--spacing-md) * 1.5) 0;
    min-height: 250px;
  }
  
  .hero h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
  }
  
  .hero p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
  }
  
  .container {
    padding: 0 var(--spacing-xs);
  }
  
  section {
    padding: calc(var(--spacing-md) * 1.2) 0;
  }
  
  nav {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }
  
  .section-title {
    padding: var(--spacing-sm) 0;
    margin-bottom: calc(var(--spacing-md) * 1.2);
  }
  
  .section-title h2 {
    font-size: 1.5rem;
    line-height: 1.3;
  }
  
  .section-title p {
    font-size: 0.9rem;
    line-height: 1.5;
  }
  
  .logo {
    font-size: 1rem;
    max-width: 55%;
  }
  
  .nav-links {
    margin: 0;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    width: 100%;
    left: 0;
    right: 0;
  }
  
  .nav-links a {
    padding: var(--spacing-xs);
    font-size: 0.9rem;
    width: 100%;
    text-align: left;
  }
  
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.85rem;
    width: 100%;
    max-width: 100%;
  }
  
  .card {
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
  }
  
  .card-title {
    font-size: 1.2rem;
    line-height: 1.3;
  }
  
  .card-content p {
    font-size: 0.9rem;
    line-height: 1.5;
  }
  
  .filter-bar {
    gap: var(--spacing-xs);
    flex-wrap: wrap;
  }
  
  .filter-btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    flex: 1 1 auto;
    min-width: calc(50% - var(--spacing-xs));
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .footer-section {
    width: 100%;
  }
  
  .footer-section h3 {
    font-size: 1.1rem;
  }
  
  .footer-section p,
  .footer-section a {
    font-size: 0.85rem;
  }
  
  .grid-3,
  .grid-4 {
    gap: var(--spacing-sm);
    grid-template-columns: 1fr;
  }
  
  .section-image-left,
  .section-image-right {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .section-image-left img,
  .section-image-right img {
    width: 100%;
    max-width: 100%;
    height: auto;
    margin-bottom: var(--spacing-sm);
  }
  
  .section-image-center img {
    max-width: 100%;
    height: auto;
  }
  
  .section-image-center p {
    font-size: 0.9rem;
    padding: 0 var(--spacing-xs);
  }
  
  .feature-icon {
    width: 48px;
    height: 48px;
  }
  
  .course-card img,
  .card-image {
    width: 100%;
    height: auto;
    max-height: 180px;
    object-fit: cover;
  }
  
  .tutor-avatar {
    width: 100px;
    height: 100px;
  }
  
  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 0.9rem;
    padding: 0.75rem;
  }
  
  .faq-question {
    padding: var(--spacing-sm);
    font-size: 0.9rem;
  }
  
  .faq-answer-content {
    padding: 0 var(--spacing-sm) var(--spacing-sm);
    font-size: 0.85rem;
  }
  
  /* Contact Page Specific Styles */
  .grid-12 {
    grid-template-columns: 1fr;
  }
  
  .card[style*="grid-column"] {
    grid-column: span 1 !important;
    max-width: 100% !important;
    margin: 0 auto !important;
  }
  
  .card[style*="max-width"] {
    max-width: 100% !important;
  }
  
  .form-group label {
    font-size: 0.9rem;
  }
  
  .checkbox-group label {
    font-size: 0.85rem;
    line-height: 1.4;
  }
  
  .checkbox-group input[type="checkbox"] {
    margin-top: 0.2rem;
  }
  
  /* Contact Information Cards */
  .card h2 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
  }
  
  .card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
  }
  
  .card p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    word-wrap: break-word;
  }
  
  .card a {
    font-size: 0.9rem;
    word-break: break-all;
  }
  
  /* About Page Specific Styles */
  .card[style*="grid-column: span 12"] {
    grid-column: span 1 !important;
  }
  
  .section-image-center .btn {
    width: 100%;
    max-width: 100%;
  }
  
  /* Ensure all inline styles are overridden */
  [style*="max-width"] {
    max-width: 100% !important;
  }
  
  [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
  
  [style*="margin-bottom"] {
    margin-bottom: var(--spacing-sm) !important;
  }
  
  [style*="font-size: 1.1rem"] {
    font-size: 0.95rem !important;
  }
  
  [style*="max-width: 700px"],
  [style*="max-width: 800px"] {
    max-width: 100% !important;
  }
  
  /* Contact Page Classes */
  .contact-form-card,
  .contact-info-card {
    grid-column: span 1;
    max-width: 100%;
    margin: 0 auto;
    width: 100%;
  }
  
  .contact-info-item {
    margin-bottom: var(--spacing-sm);
  }
  
  .contact-info-item:last-child {
    margin-bottom: 0;
  }
  
  .phone-hours {
    color: var(--color-dark-gray);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
  }
  
  .faq-container {
    max-width: 100%;
    margin: 0 auto;
    width: 100%;
  }
  
  /* About Page Classes */
  .mission-card,
  .vision-card {
    grid-column: span 1;
    width: 100%;
  }
  
  .team-image {
    max-width: 100%;
    margin: 0 auto var(--spacing-sm);
    border-radius: var(--radius-lg);
    width: 100%;
    height: auto;
  }
  
  .team-description {
    font-size: 0.95rem;
    max-width: 100%;
    margin: 0 auto var(--spacing-sm);
    padding: 0 var(--spacing-xs);
    line-height: 1.5;
  }
}