/* ========================================
   KommuniK Academy - Global Styles
   Modern, Elegant & Responsive Design
   ======================================== */

/* ===== CSS Variables ===== */
:root {
  --primary-purple: #6A0DAD;
  --primary-purple-dark: #4A0A7A;
  --primary-purple-light: #8B3FBF;
  --whatsapp-green: #25D366;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --gray-dark: #333333;
  --gray-medium: #666666;
  --gray-light: #F5F5F5;
  --gray-border: #E0E0E0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
}

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

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--gray-dark);
  background-color: var(--white);
  overflow-x: hidden;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: 1rem;
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--gray-medium);
}

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

/* ===== Navigation Bar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition);
}

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

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-purple);
}

.navbar-logo img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.navbar-menu li a {
  color: var(--gray-dark);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
}

.navbar-menu li a:hover {
  color: var(--primary-purple);
  background-color: rgba(106, 13, 173, 0.05);
}

.navbar-menu li a.active {
  color: var(--primary-purple);
  background-color: rgba(106, 13, 173, 0.1);
}

.navbar-cta {
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  color: var(--white) !important;
  padding: 0.75rem 1.5rem !important;
  border-radius: var(--border-radius);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, var(--primary-purple-dark), var(--primary-purple)) !important;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.navbar-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-purple);
  border-radius: 3px;
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  margin-top: 80px;
  padding: 6rem 2rem;
  background: linear-gradient(135deg, rgba(106, 13, 173, 0.03), rgba(139, 63, 191, 0.05));
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(106, 13, 173, 0.1), transparent);
  border-radius: 50%;
  z-index: 0;
}

.hero-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: var(--gray-medium);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  justify-content: center;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--primary-purple-dark), var(--primary-purple));
}

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

.btn-secondary:hover {
  background: var(--primary-purple);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-placeholder {
  width: 100%;
  max-width: 500px;
  height: 400px;
  background: linear-gradient(135deg, rgba(106, 13, 173, 0.1), rgba(139, 63, 191, 0.15));
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--primary-purple);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-image-placeholder img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
}

.hero-image-placeholder::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* ===== Section Styles ===== */
.section {
  padding: 5rem 2rem;
}

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

.section-container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
  color: var(--primary-purple);
}

.section-header p {
  font-size: 1.125rem;
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Cards Grid ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-border);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-purple);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--primary-purple);
}

.card p {
  margin-bottom: 1.5rem;
}

.card ul {
  list-style: none;
  margin-bottom: 1.5rem;
}

.card ul li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--gray-medium);
}

.card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-purple);
  font-weight: bold;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-border);
}

.card-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-purple);
}

.card-price-old {
  font-size: 1rem;
  color: var(--gray-medium);
  text-decoration: line-through;
  margin-left: 0.5rem;
}

/* ===== Course Detail Card ===== */
.course-detail {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.course-header {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--gray-border);
}

.course-icon-large {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--white);
  flex-shrink: 0;
}

.course-info h2 {
  margin-bottom: 0.5rem;
}

.course-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-medium);
  font-size: 0.95rem;
}

.course-meta-item strong {
  color: var(--primary-purple);
}

.course-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.course-description h3 {
  color: var(--primary-purple);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.course-sidebar {
  background: var(--gray-light);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  height: fit-content;
}

.course-price-box {
  text-align: center;
  margin-bottom: 2rem;
}

.course-price-box .price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-purple);
  display: block;
}

.course-price-box .price-old {
  font-size: 1.25rem;
  color: var(--gray-medium);
  text-decoration: line-through;
}

.course-price-box .discount {
  display: inline-block;
  background: var(--primary-purple);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* ===== Testimonials ===== */
.testimonial-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  border-left: 4px solid var(--primary-purple);
}

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

.testimonial-quote {
  font-size: 3rem;
  color: var(--primary-purple);
  opacity: 0.2;
  position: absolute;
  top: 1rem;
  left: 1.5rem;
}

.testimonial-text {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--gray-dark);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.25rem;
}

.testimonial-info h4 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.testimonial-info p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--gray-medium);
}

/* ===== Contact Form ===== */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.contact-info-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.contact-info-content p {
  margin: 0;
}

.contact-form {
  background: var(--white);
  padding: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--gray-dark);
}

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

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.1);
}

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

.btn-submit {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

/* ===== Admin/Login Page ===== */
.admin-container {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(106, 13, 173, 0.05), rgba(139, 63, 191, 0.08));
}

.admin-card {
  background: var(--white);
  padding: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 450px;
  width: 100%;
}

.admin-header {
  text-align: center;
  margin-bottom: 2rem;
}

.admin-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.admin-header p {
  color: var(--gray-medium);
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-item {
  text-align: center;
  padding: 2rem;
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--white);
  margin: 0 auto 1.5rem;
  transition: var(--transition);
}

.feature-item:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-item h3 {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.feature-item p {
  margin: 0;
  font-size: 0.95rem;
}

/* ===== Stats Section ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 2rem;
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-purple);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--gray-medium);
  font-size: 1rem;
}

/* ===== Footer ===== */
.footer {
  background: linear-gradient(135deg, #2D0A4E, #4A0A7A);
  color: var(--white);
  padding: 2rem 2rem 1rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  margin-bottom: 1.5rem;
  align-items: start;
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.5rem;
  display: block;
}

.footer-section a:hover {
  color: var(--primary-purple-light);
}

.footer-social {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-icon {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  padding: 10px;
}

.social-icon svg {
  width: 100%;
  height: 100%;
  fill: white;
  display: block;
}

.social-icon:hover {
  background: var(--primary-purple);
  transform: translateY(-3px);
}

.social-icon:hover svg {
  fill: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: underline;
  transition: var(--transition);
}

.footer-bottom a:hover {
  color: var(--white);
  text-decoration: none;
}

/* ===== WhatsApp Floating Button ===== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: var(--whatsapp-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
}

.whatsapp-float svg {
  width: 35px;
  height: 35px;
  fill: var(--white);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .course-content {
    grid-template-columns: 1fr;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .navbar-container {
    padding: 0.875rem 1rem;
  }
  
  .navbar-logo {
    font-size: 1.25rem;
  }
  
  .navbar-logo img {
    width: 35px;
    height: 35px;
  }
  
  .navbar-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    transition: var(--transition);
    gap: 0.5rem;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  
  .navbar-menu li {
    width: 100%;
  }
  
  .navbar-menu li a {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.875rem 1rem;
  }
  
  .navbar-menu.active {
    transform: translateY(0);
  }
  
  .navbar-toggle {
    display: flex;
  }
  
  .hero {
    margin-top: 70px;
    padding: 2.5rem 1.25rem;
  }
  
  .hero-content h1 {
    font-size: 1.875rem;
    line-height: 1.2;
  }
  
  .hero-content p {
    font-size: 1rem;
    line-height: 1.6;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-image-placeholder {
    height: 300px;
    font-size: 3rem;
  }
  
  .section {
    padding: 2.5rem 1.25rem;
  }
  
  .section-header h2 {
    font-size: 1.875rem;
  }
  
  .section-header p {
    font-size: 1rem;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .feature-item {
    padding: 1.5rem;
  }
  
  .course-header {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .course-detail {
    padding: 1.5rem;
  }
  
  .course-meta {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
  
  .contact-container {
    gap: 2rem;
  }
  
  .footer {
    padding: 2rem 1.25rem 1rem;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-section {
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
  }
  
  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }
  
  h1 { font-size: 1.625rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .navbar-container {
    padding: 0.75rem 0.875rem;
  }
  
  .navbar-logo {
    font-size: 1.125rem;
  }
  
  .navbar-logo img {
    width: 32px;
    height: 32px;
  }
  
  .navbar-menu {
    padding: 1.25rem;
    top: 65px;
  }
  
  .hero {
    margin-top: 65px;
    padding: 2rem 1rem;
  }
  
  .hero-content h1 {
    font-size: 1.625rem;
    margin-bottom: 1rem;
  }
  
  .hero-content p {
    font-size: 0.95rem;
  }
  
  .hero-image-placeholder {
    height: 250px;
    font-size: 2.5rem;
  }
  
  .section {
    padding: 2rem 1rem;
  }
  
  .section-header h2 {
    font-size: 1.5rem;
  }
  
  .card {
    padding: 1.25rem;
  }
  
  .card-icon,
  .feature-icon {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  
  .btn {
    padding: 0.875rem 1.25rem;
    font-size: 0.9rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .course-detail {
    padding: 1.25rem;
  }
  
  .contact-form {
    padding: 1.25rem;
  }
  
  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  .footer {
    padding: 1.5rem 1rem 0.75rem;
  }
  
  .whatsapp-float {
    width: 48px;
    height: 48px;
    bottom: 16px;
    right: 16px;
  }
  
  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-purple { color: var(--primary-purple); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* ===== Accessibility ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== Print Styles ===== */
@media print {
  .navbar,
  .whatsapp-float,
  .footer {
    display: none;
  }
}