/* ========================================
   ENGLISH LEARNING SCHOOL - MAIN STYLES
   Custom Design System
   ======================================== */

:root {
  --bg-primary: #fff9f0;
  --accent-coral: #ff6f61;
  --accent-violet: #6a4c93;
  --accent-yellow: #ffe66d;
  --text-primary: #2e2e2e;
  --hover-peach: #ffb347;
  
  --gradient-warm: linear-gradient(135deg, var(--accent-coral), var(--hover-peach));
  --gradient-cool: linear-gradient(135deg, var(--accent-violet), #8b5fbf);
  --gradient-bright: linear-gradient(135deg, var(--accent-yellow), #fff2a3);
  --gradient-hero: linear-gradient(45deg, var(--accent-coral), var(--accent-violet), var(--accent-yellow));
  
  --shadow-soft: 0 8px 32px rgba(106, 76, 147, 0.1);
  --shadow-bold: 0 16px 48px rgba(255, 111, 97, 0.2);
  --shadow-floating: 0 20px 60px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ========================================
   LANGUAGE SWITCHER SYSTEM
   ======================================== */



/* ========================================
   NAVIGATION HEADER
   ======================================== */

.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 249, 240, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 2px solid transparent;
  border-image: var(--gradient-warm) 1;
  padding: 1rem 0;
  transition: all 0.3s ease;
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
  transform: rotate(-2deg);
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: rotate(0deg) scale(1.05);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* .nav-links a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-warm);
  transition: left 0.3s ease;
  z-index: -1;
}

.nav-links a:hover::before {
  left: 0;
}

.nav-links a:hover {
  color: white;
  transform: translateY(-2px);
} */

.lang-toggle {
  background: var(--gradient-cool);
  color: white;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
}

.lang-toggle:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-bold);
}

/* ========================================
   HERO SECTION - CREATIVE LAYOUT
   ======================================== */

.hero-section {
  min-height: 100vh;
  padding: 8rem 2rem 4rem;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg-shapes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

.hero-shape {
  position: absolute;
  border-radius: 50% 30% 60% 40%;
  animation: float 6s ease-in-out infinite;
}

.hero-shape:nth-child(1) {
  width: 300px;
  height: 300px;
  background: var(--gradient-warm);
  opacity: 0.1;
  top: 10%;
  right: 10%;
  animation-delay: 0s;
}

.hero-shape:nth-child(2) {
  width: 200px;
  height: 200px;
  background: var(--gradient-cool);
  opacity: 0.15;
  bottom: 20%;
  left: 5%;
  animation-delay: 2s;
}

.hero-shape:nth-child(3) {
  width: 150px;
  height: 150px;
  background: var(--gradient-bright);
  opacity: 0.2;
  top: 30%;
  left: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

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

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  background: var(--gradient-bright);
  color: var(--text-primary);
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  margin-bottom: 2rem;
  transform: rotate(-2deg);
  box-shadow: var(--shadow-soft);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: rotate(-2deg) translateY(0); }
  50% { transform: rotate(-2deg) translateY(-5px); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
  animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 2.5rem;
  font-weight: 400;
  opacity: 0.8;
}

.hero-cta-group {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-primary {
  background: var(--gradient-warm);
  color: white;
  padding: 1.2rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-bold);
  border: none;
  cursor: pointer;
}

.cta-primary:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-floating);
}

.cta-secondary {
  background: transparent;
  color: var(--accent-violet);
  padding: 1.2rem 2.5rem;
  border: 2px solid var(--accent-violet);
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

.cta-secondary:hover {
  background: var(--accent-violet);
  color: white;
  transform: translateY(-2px);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.hero-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--shadow-floating);
  position: absolute;
  transform-origin: center;
  transition: all 0.3s ease;
}

.hero-card:nth-child(1) {
  transform: rotate(-5deg) translateX(-10px);
  z-index: 3;
  background: var(--gradient-bright);
}

.hero-card:nth-child(2) {
  transform: rotate(8deg) translateX(20px) translateY(20px);
  z-index: 2;
  background: var(--gradient-warm);
  color: white;
}

.hero-card:nth-child(3) {
  transform: rotate(-12deg) translateX(-30px) translateY(40px);
  z-index: 1;
  background: var(--gradient-cool);
  color: white;
}

.hero-card-stack:hover .hero-card:nth-child(1) {
  transform: rotate(-2deg) translateX(-5px) translateY(-10px);
}

.hero-card-stack:hover .hero-card:nth-child(2) {
  transform: rotate(3deg) translateX(10px) translateY(10px);
}

.hero-card-stack:hover .hero-card:nth-child(3) {
  transform: rotate(-6deg) translateX(-15px) translateY(30px);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card-text {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* ========================================
   COURSE CATEGORIES - FLOATING HEXAGONS
   ======================================== */

.courses-section {
  padding: 8rem 2rem;
  position: relative;
  background: linear-gradient(135deg, rgba(255, 230, 109, 0.1), rgba(106, 76, 147, 0.1));
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  background: var(--gradient-cool);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-primary);
  opacity: 0.7;
  max-width: 600px;
  margin: 0 auto;
}

.courses-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.course-hexagon {
  width: 280px;
  height: 280px;
  margin: 2rem auto;
  position: relative;
  transform: rotate(30deg);
  transition: all 0.4s ease;
  cursor: pointer;
}

.course-hexagon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-warm);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  transition: all 0.4s ease;
}

.course-hexagon:nth-child(even)::before {
  background: var(--gradient-cool);
}

.course-hexagon:nth-child(3n)::before {
  background: var(--gradient-bright);
}

.course-hexagon:hover {
  transform: rotate(30deg) scale(1.1);
}

.course-hexagon:hover::before {
  filter: brightness(1.1);
}

.hexagon-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-30deg);
  text-align: center;
  color: white;
  z-index: 2;
  width: 200px;
}

.course-hexagon:nth-child(3n) .hexagon-content {
  color: var(--text-primary);
}

.hexagon-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.hexagon-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.hexagon-desc {
  font-size: 0.9rem;
  opacity: 0.9;
  line-height: 1.4;
}

/* ========================================
   LANGUAGE CHECKER - INTERACTIVE CIRCLE
   ======================================== */

.checker-section {
  padding: 8rem 2rem;
  background: radial-gradient(circle at center, rgba(255, 111, 97, 0.05), transparent 70%);
}

.checker-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.checker-content {
  text-align: left;
}

.checker-visual {
  position: relative;
  height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.interactive-circle {
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent-coral), var(--accent-yellow), var(--accent-violet), var(--accent-coral));
  position: relative;
  animation: rotate 20s linear infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.interactive-circle:hover {
  transform: scale(1.05);
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.circle-inner {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-floating);
  animation: counterRotate 20s linear infinite;
}

@keyframes counterRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

.circle-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-violet);
  margin-bottom: 1rem;
}

.circle-text {
  font-size: 1rem;
  color: var(--text-primary);
  opacity: 0.8;
  padding: 0 1rem;
}

.level-indicators {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.level-dot {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  animation: pulse 2s ease-in-out infinite;
}

.level-dot:nth-child(1) {
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 0s;
}

.level-dot:nth-child(2) {
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  animation-delay: 0.5s;
}

.level-dot:nth-child(3) {
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 1s;
}

.level-dot:nth-child(4) {
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
  animation-delay: 1.5s;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

/* ========================================
   TESTIMONIALS - FLOATING CARDS
   ======================================== */

.testimonials-section {
  padding: 8rem 2rem;
  background: linear-gradient(45deg, rgba(106, 76, 147, 0.05), rgba(255, 230, 109, 0.1));
  position: relative;
  overflow: hidden;
}

.testimonials-container {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.testimonial-card {
  background: white;
  border-radius: 30px;
  padding: 2.5rem;
  box-shadow: var(--shadow-floating);
  position: relative;
  transform: rotate(-2deg);
  transition: all 0.4s ease;
  overflow: hidden;
}

.testimonial-card:nth-child(even) {
  transform: rotate(2deg);
}

.testimonial-card:nth-child(3n) {
  transform: rotate(-1deg);
}

.testimonial-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-warm);
}

.testimonial-card:nth-child(even)::before {
  background: var(--gradient-cool);
}

.testimonial-card:nth-child(3n)::before {
  background: var(--gradient-bright);
}

.testimonial-card:hover {
  transform: rotate(0deg) translateY(-10px);
  box-shadow: var(--shadow-floating);
}

.testimonial-quote {
  font-size: 1.1rem;
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

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

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.5rem;
}

.author-info h4 {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.author-info p {
  color: var(--text-primary);
  opacity: 0.6;
  font-size: 0.9rem;
}

.floating-quotes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: -1;
}

.quote-mark {
  position: absolute;
  font-size: 8rem;
  color: var(--accent-yellow);
  opacity: 0.1;
  font-family: serif;
  animation: float 8s ease-in-out infinite;
}

.quote-mark:nth-child(1) {
  top: 10%;
  left: 5%;
  animation-delay: 0s;
}

.quote-mark:nth-child(2) {
  top: 60%;
  right: 10%;
  animation-delay: 3s;
}

.quote-mark:nth-child(3) {
  bottom: 20%;
  left: 20%;
  animation-delay: 6s;
}

/* ========================================
   ADVANTAGES - LAYERED WAVES
   ======================================== */

.advantages-section {
  padding: 8rem 2rem;
  position: relative;
  background: var(--bg-primary);
}

.wave-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: -1;
}

.wave {
  position: absolute;
  width: 120%;
  height: 200px;
  opacity: 0.1;
  animation: wave 15s ease-in-out infinite;
}

.wave:nth-child(1) {
  top: 20%;
  background: var(--gradient-warm);
  animation-delay: 0s;
  clip-path: polygon(0 20%, 100% 0%, 100% 100%, 0% 80%);
}

.wave:nth-child(2) {
  top: 40%;
  background: var(--gradient-cool);
  animation-delay: 5s;
  clip-path: polygon(0 40%, 100% 20%, 100% 100%, 0% 60%);
}

.wave:nth-child(3) {
  top: 60%;
  background: var(--gradient-bright);
  animation-delay: 10s;
  clip-path: polygon(0 60%, 100% 40%, 100% 100%, 0% 80%);
}

@keyframes wave {
  0%, 100% { transform: translateX(-10%) skewX(0deg); }
  50% { transform: translateX(10%) skewX(-5deg); }
}

.advantages-container {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.advantage-item {
  background: white;
  border-radius: 25px;
  padding: 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  position: relative;
  transition: all 0.4s ease;
  overflow: hidden;
}

.advantage-item::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: var(--gradient-warm);
  opacity: 0;
  transition: all 0.4s ease;
  z-index: -1;
}

.advantage-item:nth-child(even)::before {
  background: var(--gradient-cool);
}

.advantage-item:nth-child(3n)::before {
  background: var(--gradient-bright);
}

.advantage-item:hover::before {
  opacity: 0.1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.advantage-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-floating);
}

.advantage-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-warm);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem;
  transition: all 0.3s ease;
}

.advantage-item:nth-child(even) .advantage-icon {
  background: var(--gradient-cool);
}

.advantage-item:nth-child(3n) .advantage-icon {
  background: var(--gradient-bright);
  color: var(--text-primary);
}

.advantage-item:hover .advantage-icon {
  transform: scale(1.1) rotate(10deg);
}

.advantage-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.advantage-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  opacity: 0.8;
}

/* ========================================
   FAQ ACCORDION - EXPANDABLE DESIGN
   ======================================== */

.faq-section {
  padding: 8rem 2rem;
  background: linear-gradient(135deg, rgba(255, 111, 97, 0.03), rgba(106, 76, 147, 0.05));
}

.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-list {
  margin-top: 3rem;
}

.faq-item {
  background: white;
  border-radius: 20px;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-bold);
  transform: translateY(-2px);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 2rem;
  text-align: left;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: rgba(255, 111, 97, 0.05);
}

.faq-toggle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--gradient-warm);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
  background: var(--gradient-cool);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  padding: 0 2rem;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 2rem 2rem;
}

.faq-answer p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  opacity: 0.8;
}

/* ========================================
   FOOTER - CREATIVE LAYOUT
   ======================================== */

.main-footer {
  background: linear-gradient(135deg, var(--accent-violet), #4a3068);
  color: white;
  padding: 6rem 2rem 2rem;
  position: relative;
  overflow: hidden;
}

.footer-shapes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.footer-shape {
  position: absolute;
  border-radius: 50% 30% 60% 40%;
  background: rgba(255, 255, 255, 0.05);
  animation: float 12s ease-in-out infinite;
}

.footer-shape:nth-child(1) {
  width: 200px;
  height: 200px;
  top: -50px;
  right: 10%;
  animation-delay: 0s;
}

.footer-shape:nth-child(2) {
  width: 150px;
  height: 150px;
  bottom: -30px;
  left: 15%;
  animation-delay: 4s;
}

.footer-shape:nth-child(3) {
  width: 100px;
  height: 100px;
  top: 30%;
  left: 5%;
  animation-delay: 8s;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  padding-right: 2rem;
}

.footer-logo {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-bright);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
  display: block;
}

.footer-desc {
  font-size: 1.1rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  font-size: 1.3rem;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--gradient-warm);
  transform: translateY(-3px);
}

.footer-section h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--accent-yellow);
}

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

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--accent-yellow);
  transform: translateX(5px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
  opacity: 0.7;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    flex-direction: column;
    gap: 1rem;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .checker-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-brand {
    padding-right: 0;
  }
  
  .interactive-circle {
    width: 280px;
    height: 280px;
  }
  
  .circle-inner {
    width: 200px;
    height: 200px;
  }
  
  .course-hexagon {
    width: 220px;
    height: 220px;
  }
  
  .hexagon-content {
    width: 160px;
  }
}

@media (max-width: 480px) {
  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-primary,
  .cta-secondary {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .courses-container {
    grid-template-columns: 1fr;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
}