/* =====================
   CSS Variables (Theme)
   ===================== */
:root {
  --primary: #4f8cff;
  --secondary: #ffb347;
  --accent: #43e97b;
  --danger: #ff3a55;
  --background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --surface: #fff;
  --text: #23272f;
  --text-light: #6c757d;
  --border: #e0e0e0;
  --shadow: 0 4px 24px rgba(60,60,60,0.10);
  --radius: 20px;
  --transition: 0.3s cubic-bezier(.4,2,.6,1);
  --font-main: 'Cairo', 'Rubik', Arial, sans-serif;
}

body.dark-mode {
  --background: linear-gradient(135deg, #23262f 0%, #181a20 100%);
  --surface: #23262f;
  --text: #f5f6fa;
  --text-light: #b0b3b8;
  --border: #23262f;
  --shadow: 0 4px 24px rgba(0,0,0,0.30);
}

html, body {
  font-family: var(--font-main);
  background: var(--background);
  color: var(--text);
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

/* =====================
   Navbar
   ===================== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 2.5rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.logo-image {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  column-gap: 0.6rem;
  row-gap: 0;
}

.nav-links a, .nav-links i {
  color: var(--text);
  text-decoration: none;
  font-size: 1.18rem;
  padding: 0.32rem 0.7rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform 0.18s cubic-bezier(.4,2,.6,1);
  cursor: pointer;
  margin: 0 0.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links i {
  font-size: 1.35rem;
  background: none;
  color: var(--text);
  padding: 0.32rem 0.7rem;
  border-radius: 50%;
  margin: 0 0.1rem;
  box-shadow: none;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform 0.18s cubic-bezier(.4,2,.6,1);
}

.nav-links i:hover {
  background: rgba(79,140,255,0.10);
  color: var(--primary);
  box-shadow: none;
  transform: scale(1.13) rotate(-8deg);
}

.nav-links a:hover {
  background: linear-gradient(120deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,179,71,0.13);
  transform: scale(1.07);
}

.navbar {
  box-shadow: var(--shadow), 0 2px 16px rgba(79,140,255,0.07);
  transition: var(--transition), box-shadow 0.18s cubic-bezier(.4,2,.6,1);
}

.start-btn {
  background: var(--primary);
  color: #fff !important;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(58,134,255,0.08);
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
}

.start-btn:hover {
  background: var(--secondary);
  color: var(--text) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(255,179,71,0.3);
}

/* =====================
   Hero Section
   ===================== */
.hero-section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  padding: 3.5rem 2rem 2rem 2rem;
  background: linear-gradient(120deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  text-align: center;
  min-height: 60vh;
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-text h1 {
  font-size: 3.2rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #fff, #f0f8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text .hero-subtitle {
  font-size: 1.3rem;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-image {
  flex: 1;
  max-width: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-text {
  animation: fadeInUp 1s ease-out;
}

.hero-text h1, .hero-text .hero-subtitle {
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* =====================
   Top Instructors Section
   ===================== */
.top-instructors-section {
  padding: 4rem 2rem;
  background: var(--surface);
}

.top-instructors-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.top-instructors-section .subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Instructors Filter */
.instructors-filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.8rem 1.5rem;
  border: 2px solid var(--primary);
  background: transparent;
  color: var(--primary);
  border-radius: 25px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  font-size: 1rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(79,140,255,0.3);
  border-radius: 30px;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

/* Instructors Cards */
.instructors-cards {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 1400px;
  margin: 0 auto;
}

.instructor-card {
  min-width: 280px;
  max-width: 360px;
  min-height: 520px;
  padding: 2rem 1.5rem 1.5rem 1.5rem;
  border-radius: 22px;
  box-shadow: 0 4px 18px rgba(79,140,255,0.10), 0 1px 4px rgba(67,233,123,0.07);
  background: rgba(255, 255, 255, 0.95);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.25s cubic-bezier(.4,2,.6,1), transform 0.22s cubic-bezier(.4,2,.6,1);
  border: 1px solid rgba(79,140,255,0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 25px;
}

body.dark-mode .instructor-card {
  background: rgba(35, 38, 47, 0.95);
}

/* Shimmer effect for cards */
.instructor-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s;
}

.instructor-card:hover::before {
  left: 100%;
}

/* Floating animation for cards */
.instructor-card {
  animation: fadeInUp 0.8s ease-out forwards, float 6s ease-in-out infinite 0.8s;
  animation-delay: calc(var(--card-index, 0) * 0.2s), calc(0.8s + var(--card-index, 0) * 0.2s);
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.instructor-card:hover {
  animation: none;
}

/* Staggered animation for cards */
.instructor-card:nth-child(1) { --card-index: 0; }
.instructor-card:nth-child(2) { --card-index: 1; }
.instructor-card:nth-child(3) { --card-index: 2; }
.instructor-card:nth-child(4) { --card-index: 3; }
.instructor-card:nth-child(5) { --card-index: 4; }
.instructor-card:nth-child(6) { --card-index: 5; }

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

.instructor-image {
  position: relative;
  margin-bottom: 1.2rem;
  text-align: center;
}

.instructor-image img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--primary);
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(79,140,255,0.15);
  filter: brightness(1.05) contrast(1.1);
  border-radius: 55%;
}

.instructor-badge {
  position: absolute;
  top: -8px;
  right: 50%;
  transform: translateX(50%);
  background: linear-gradient(45deg, var(--primary), var(--accent));
  color: #fff;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(79,140,255,0.3);
  transition: var(--transition);
  animation: pulse 2s infinite;
}

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

.instructor-info h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0.5rem 0 0.3rem 0;
  color: var(--primary);
  text-align: center;
  text-shadow: 0 2px 4px rgba(79,140,255,0.1);
}

.instructor-subject {
  text-align: center;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.2rem;
  font-size: 1rem;
}

.instructor-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}

.stat {
  text-align: center;
  padding: 0.8rem 0.5rem;
  background: rgba(79,140,255,0.08);
  border-radius: 15px;
  border: 1px solid rgba(79,140,255,0.15);
  transition: var(--transition);
}

.stat:hover {
  background: rgba(79,140,255,0.12);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(79,140,255,0.2);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.3rem;
  font-weight: 500;
}

.stat-value {
  display: block;
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--primary);
}

.instructor-testimonial {
  background: rgba(67,233,123,0.08);
  padding: 1.2rem;
  border-radius: 18px;
  border-left: 3px solid var(--accent);
  margin-top: 1rem;
  transition: var(--transition);
}

.instructor-testimonial:hover {
  background: rgba(67,233,123,0.12);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(67,233,123,0.2);
}

.instructor-testimonial p {
  font-style: italic;
  color: var(--text);
  line-height: 1.5;
  margin: 0;
  font-size: 0.9rem;
}

/* Instructor Actions (WhatsApp) */
.instructor-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1rem;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 9999px;
  text-decoration: none;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}

.action-btn i { font-size: 1.1rem; }

.whatsapp-btn {
  background: #25D366;
  color: #fff;
}

.whatsapp-btn:hover {
  background: #1ebe57;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,211,102,0.25);
}

.instructor-card:hover {
  box-shadow: 0 12px 36px rgba(79,140,255,0.18), 0 2px 8px rgba(67,233,123,0.10), 0 0 30px rgba(79,140,255,0.3);
  transform: translateY(-8px) scale(1.04) rotate(-1deg) !important;
  background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  border-color: rgba(255,255,255,0.3);
}

.instructor-card:hover .instructor-image img {
  transform: scale(1.1) rotate(5deg);
  border-color: #fff;
  box-shadow: 0 6px 20px rgba(255,255,255,0.3);
  filter: brightness(1.1) contrast(1.2) saturate(1.1);
}

.instructor-card:hover h3,
.instructor-card:hover .instructor-subject,
.instructor-card:hover .stat-value,
.instructor-card:hover .stat-label,
.instructor-card:hover .instructor-testimonial p {
  color: #fff;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.instructor-card:hover .stat {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.2);
}

.instructor-card:hover .instructor-testimonial {
  background: rgba(255,255,255,0.15);
  border-left-color: #fff;
}

.instructor-card:hover .instructor-badge {
  animation: none;
  transform: translateX(50%) scale(1.1);
  box-shadow: 0 4px 16px rgba(255,255,255,0.4);
}

 

/* =====================
   Join Section
   ===================== */
.join-section {
  padding: 4rem 2rem;
  background: linear-gradient(120deg, #fff 0%, #e3f0ff 100%);
}

body.dark-mode .join-section {
  background: linear-gradient(120deg, #23262f 0%, #181a20 100%);
}

.join-content {
  display: flex;
  align-items: center;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.join-image {
  flex: 1;
  text-align: center;
}

.join-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.join-text {
  flex: 1;
}

.join-text h2 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.join-text p {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.join-btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: bold;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(79,140,255,0.3);
}

.join-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(79,140,255,0.4);
  background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 100%);
}

/* =====================
   Follow Me Section
   ===================== */
.follow-me-section {
  padding: 4rem 2rem;
  background: linear-gradient(120deg, #fff 0%, #e3f0ff 100%);
  text-align: center;
}

body.dark-mode .follow-me-section {
  background: linear-gradient(120deg, #23262f 0%, #181a20 100%);
}

.follow-me-section h2 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 2rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.social-icons {
  display: flex;
  gap: 2.2rem;
  justify-content: center;
  align-items: center;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.social-icon img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  box-shadow: 0 4px 18px rgba(79,140,255,0.13);
  background: #fff;
  transition: transform 0.22s cubic-bezier(.4,2,.6,1), box-shadow 0.22s cubic-bezier(.4,2,.6,1);
  border: 2.5px solid var(--primary);
  padding: 7px;
  object-fit: contain;
}

.social-icon:hover img {
  transform: scale(1.18) rotate(-8deg);
  box-shadow: 0 12px 36px rgba(255,179,71,0.18);
  border-color: var(--accent);
}

/* =====================
   Footer Section
   ===================== */
.footer-section {
  padding: 4rem 2rem 2rem 2rem;
  background: linear-gradient(120deg, #fff 0%, #e3f0ff 100%);
}

body.dark-mode .footer-section {
  background: linear-gradient(120deg, #23262f 0%, #181a20 100%);
}

.footer-content {
  display: flex;
  align-items: center;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 3rem auto;
}

.footer-image {
  flex: 1;
  text-align: center;
}

.footer-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.footer-text {
  flex: 1;
}

.footer-text h2 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-text p {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.footer-copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-copyright h4 {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* =====================
   Support Button
   ===================== */
.support-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: #25d366;
  color: #fff;
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  font-weight: bold;
  font-size: 1.1rem;
  box-shadow: 0 4px 24px rgba(37,211,102,0.18);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  z-index: 200;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.support-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: scale(1.07);
}

.support-btn i {
  font-size: 1.5rem;
}

.support-text {
  position: absolute;
  right: 70px;
  background: var(--surface);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  white-space: nowrap;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateX(10px);
  transition: var(--transition);
}

.support-btn:hover .support-text {
  opacity: 1;
  transform: translateX(0);
}

/* =====================
   Animations
   ===================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.from-left {
  transform: translateX(-50px);
}

.from-right {
  transform: translateX(50px);
}

.from-bottom {
  transform: translateY(50px);
}

.from-top {
  transform: translateY(-50px);
}

.animate-on-scroll.visible.from-left,
.animate-on-scroll.visible.from-right,
.animate-on-scroll.visible.from-bottom,
.animate-on-scroll.visible.from-top {
  transform: translate(0, 0);
}

.clicked {
  animation: click-bounce 0.3s ease;
}

@keyframes click-bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(0.95); }
}

/* === خطوط فاصلة Gradient بين الأقسام === */
section:not(:last-child) {
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--primary), var(--accent)) 1;
  margin-bottom: 2.5rem;
}

/* === تأثير موجة للأزرار عند الضغط === */
button, .join-btn, .start-btn {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

button::after, .join-btn::after, .start-btn::after {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 0; height: 0;
  background: rgba(255,255,255,0.18);
  border-radius: 100%;
  transform: translate(-50%, -50%);
  transition: width 0.4s, height 0.4s;
  z-index: 0;
}

button:active::after, .join-btn:active::after, .start-btn:active::after {
  width: 200%; height: 200%;
}

/* =====================
   Responsive Design
   ===================== */
@media (max-width: 1100px) {
  .hero-section, .join-content, .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-text, .join-text, .footer-text {
    max-width: 100%;
  }
}

@media (max-width: 800px) {
  .navbar {
    padding: 0.5rem 1rem;
  }
  
  .nav-links {
    gap: 0.3rem;
  }
  
  .hero-section, .instructors-cards, .teaching-stats {
    padding: 2rem 1rem;
  }
  
  .instructors-cards {
    grid-template-columns: 1fr;
  }
  
  .support-btn {
    bottom: 16px;
    right: 16px;
    padding: 0.7rem 1.1rem;
    font-size: 1rem;
  }
  
  .instructor-card {
    min-width: 90vw;
    max-width: 98vw;
    padding: 1.5rem 1rem;
  }
  
  .instructor-image img {
    width: 150px;
    height: 150px;
  }
  
  .social-icons {
    gap: 1.2rem;
  }
  
  .social-icon img {
    width: 44px;
    height: 44px;
    padding: 4px;
  }
}

@media (max-width: 500px) {
  .hero-section, .top-instructors-section, .teaching-stats-section, .join-section, .follow-me-section, .footer-section {
    padding: 2rem 1rem;
  }
  
  .navbar {
    padding: 0.3rem 0.5rem;
  }
  
  .support-btn {
    bottom: 8px;
    right: 8px;
    padding: 0.6rem 0.7rem;
    font-size: 0.95rem;
  }
  
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .top-instructors-section h2,
  .teaching-stats-section h2,
  .join-text h2,
  .follow-me-section h2,
  .footer-text h2 {
    font-size: 1.8rem;
  }
  
  .instructors-filter {
    flex-direction: column;
    align-items: center;
  }
  
  .filter-btn {
    width: 200px;
  }
  
  .instructor-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  
  .instructor-card {
    min-height: 440px;
    padding: 1.2rem 0.8rem;
  }
  
  .instructor-info h3 {
    font-size: 1.1rem;
  }
  
  .instructor-subject {
    font-size: 0.9rem;
  }
  
  .teaching-stats {
    grid-template-columns: 1fr;
  }
}

/* =====================
   RTL Support
   ===================== */
html[dir="rtl"] body, html[dir="rtl"] .navbar, html[dir="rtl"] .hero-section, html[dir="rtl"] .top-instructors-section, html[dir="rtl"] .teaching-stats-section, html[dir="rtl"] .join-section, html[dir="rtl"] .follow-me-section, html[dir="rtl"] .footer-section {
  direction: rtl;
}

html[dir="rtl"] .nav-links {
  flex-direction: row-reverse;
}

html[dir="rtl"] .footer-links {
  flex-direction: row-reverse;
}

.top-instructors-section h2,
.teaching-stats-section h2,
.join-section h2,
.follow-me-section h2,
.footer-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

html[dir="rtl"] .top-instructors-section h2,
html[dir="rtl"] .teaching-stats-section h2,
html[dir="rtl"] .join-section h2,
html[dir="rtl"] .follow-me-section h2,
html[dir="rtl"] .footer-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-links, .footer-links h4 {
  text-align: center;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

html[dir="rtl"] .footer-links, html[dir="rtl"] .footer-links h4 {
  text-align: center;
  margin-bottom: 1rem;
}

.join-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

html[dir="rtl"] .join-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =====================
   Scrollbar Styling
   ===================== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(45deg, var(--primary), var(--accent));
  border-radius: 4px;
}

/* =====================
   Additional Hero Styling
   ===================== */
.hero-section h1 {
  font-size: 3.2rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #fff, #f0f8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-section h1 {
  font-size: 3.2rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #fff, #f0f8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

@media (max-width: 600px) {
  .hero-section h1 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #fff, #f0f8ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
}

.main-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: float 3s ease-in-out infinite;
}

.main-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: float 3s ease-in-out infinite;
}

@media (max-width: 800px) {
  .main-image {
    max-width: 80%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
  }
}

.main-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: float 3s ease-in-out infinite;
}

.logo span {
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: var(--transition);
}

@media (max-width: 600px) {
  .logo span {
    font-size: 1.2rem;
    font-weight: bold;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition);
  }
}

.footer-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: float 3s ease-in-out infinite;
}

@media (max-width: 800px) {
  .footer-image img {
    max-width: 80%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
  }
}

/* =====================
   Copyright Section
   ===================== */
.copyright-section {
  background: var(--surface);
  padding: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.copyright-content {
  max-width: 1200px;
  margin: 0 auto;
}

.copyright-content h4 {
  color: var(--text-light);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.copyright-section .footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}

.copyright-section .footer-links a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
}

.copyright-section .footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

@media (max-width: 600px) {
  .copyright-section {
    padding: 1rem;
  }
  
  .copyright-content h4 {
    font-size: 0.9rem;
  }
  
  .copyright-section .footer-links a {
    font-size: 0.8rem;
  }
}

@keyframes gradient-move {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.copyright-content h4 span.developer-name {
  background: linear-gradient(45deg, var(--primary), var(--accent), var(--secondary), var(--primary));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-move 3s ease infinite;
  font-weight: bold;
  transition: var(--transition);
}

.copyright-content h4 span.developer-name:hover {
  animation: gradient-move 1s ease infinite;
}

.copyright-section {
  background: var(--surface);
  padding: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.copyright-content {
  max-width: 1200px;
  margin: 0 auto;
}

.copyright-content h4.developer {
  color: var(--text-light);
  margin-bottom: 1rem;
  font-size: 1rem;
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: var(--transition);
}

.copyright-content h4.developer:hover {
  transform: scale(1.05);
}

body.dark-mode .teaching-number {
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.25);
}
body.dark-mode .teaching-label {
  color: var(--secondary);
  text-shadow: 0 1px 4px rgba(0,0,0,0.18);
}
body.dark-mode .teaching-icon {
  color: var(--accent);
  text-shadow: 0 2px 8px rgba(0,0,0,0.18);
}