:root {
  --purple: #6C5CE7;
  --purple-dark: #5A4BD1;
  --pink: #FD79A8;
  --cyan: #00D2D3;
  --yellow: #FECA57;
  --green: #00B894;
  --orange: #E17055;
  --bg: #F0F0F8;
  --bg-card: #FFFFFF;
  --text: #2D3436;
  --text-light: #636E72;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(108,92,231,0.12);
  --shadow-lg: 0 8px 40px rgba(108,92,231,0.18);
}

/* SVG Icons */
.icon-lg { width: 48px; height: 48px; stroke: var(--purple); }
.icon-md { width: 32px; height: 32px; stroke: var(--purple); }
.icon-sm { width: 20px; height: 20px; stroke: currentColor; }
.mascot-img { max-width: 280px; display: block; margin: 0 auto; border-radius: 20px; }
.mascot-img-sm { max-width: 120px; display: block; }

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title {
  font-size: 2.5rem;
  font-weight: 900;
  text-align: center;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub {
  text-align: center;
  color: var(--text-light);
  font-size: 1.15rem;
  margin-bottom: 48px;
}

/* Navigation */
.navbar {
  background: white;
  border-bottom: 2px solid #eee;
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { height: 36px; width: auto; }
.logo-text {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; gap: 24px; }
.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  transition: 0.2s;
}
.nav-links a:hover { color: var(--purple); }

/* Buttons */
.btn {
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: white;
  padding: 12px 28px;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(108,92,231,0.35); }
.btn-outline {
  background: transparent;
  color: var(--purple);
  border: 2px solid var(--purple);
  padding: 10px 26px;
}
.btn-outline:hover { background: var(--purple); color: white; }
.btn-lg { padding: 16px 36px; font-size: 1.1rem; border-radius: var(--radius); }
.btn-sm { padding: 8px 18px; font-size: 0.9rem; }
.btn-full { width: 100%; justify-content: center; padding: 14px; }

/* Hero */
.hero {
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  background: var(--yellow);
  color: var(--text);
  padding: 6px 16px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-block;
  margin-bottom: 16px;
}
.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--purple), var(--pink), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 32px;
  max-width: 500px;
}
.hero-cta { display: flex; gap: 16px; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 32px; }
.stat { text-align: center; }
.stat-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--purple);
  display: block;
}
.stat-label { font-size: 0.85rem; color: var(--text-light); }

/* Mascot */
.hero-visual { position: relative; }
.mascot {
  text-align: center;
  position: relative;
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}
.mascot-body { font-size: 8rem; line-height: 1; }
.mascot-msg {
  background: white;
  border-radius: 20px;
  padding: 16px 24px;
  box-shadow: var(--shadow-lg);
  font-weight: 700;
  font-size: 1.1rem;
  position: relative;
  margin-top: 16px;
  border: 3px solid var(--yellow);
}
.mascot-msg::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
  border-bottom: 12px solid var(--yellow);
}

/* Floating elements */
.floating-elements { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; }
.float-el {
  position: absolute;
  animation: floatAround 4s ease-in-out infinite;
}
.float-el .icon-md { width: 28px; height: 28px; }
.el-1 { top: 0; left: 10%; animation-delay: 0s; }
.el-2 { top: 20%; right: 0; animation-delay: 1s; }
.el-3 { bottom: 10%; left: 0; animation-delay: 2s; }
.el-4 { bottom: 0; right: 20%; animation-delay: 3s; }
@keyframes floatAround {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(15deg); }
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: 0.3s;
  text-align: center;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.feature-icon { margin-bottom: 16px; display: flex; justify-content: center; }
.feature-icon .icon-lg { width: 56px; height: 56px; }
.feature-card h3 { margin-bottom: 8px; font-size: 1.2rem; }
.feature-card p { color: var(--text-light); font-size: 0.95rem; }

/* Steps */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.step {
  text-align: center;
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  flex: 1;
  max-width: 280px;
}
.step-num {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  margin: 0 auto 12px;
}
.step-icon { font-size: 2rem; margin-bottom: 8px; }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-light); font-size: 0.9rem; }
.step-arrow { font-size: 2rem; color: var(--purple); font-weight: 900; }

/* CTA */
.cta-card {
  background: linear-gradient(135deg, var(--purple), #a29bfe);
  border-radius: var(--radius);
  padding: 60px;
  text-align: center;
  color: white;
}
.cta-card h2 { font-size: 2.2rem; margin-bottom: 12px; }
.cta-card p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 8px; }
.cta-result { font-weight: 800; font-size: 1.2rem !important; margin-bottom: 24px !important; }
.cta-card .btn-primary {
  background: white;
  color: var(--purple);
  font-size: 1.1rem;
}
.cta-card .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,0,0,0.2); }

/* Parents */
.parents-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.parent-card {
  text-align: center;
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.parent-icon { font-size: 2rem; margin-bottom: 12px; }

/* Footer */
.footer {
  background: #2D3436;
  color: white;
  padding: 60px 0 24px;
}
.footer .logo-text { background: linear-gradient(135deg, var(--yellow), var(--pink)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 32px; }
.footer-desc { margin-top: 12px; opacity: 0.7; font-size: 0.9rem; }
.footer h4 { margin-bottom: 16px; color: var(--yellow); }
.footer a { display: block; color: rgba(255,255,255,0.7); text-decoration: none; margin-bottom: 8px; transition: 0.2s; font-size: 0.9rem; }
.footer a:hover { color: var(--yellow); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; text-align: center; opacity: 0.5; font-size: 0.85rem; }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal.hidden { display: none; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.5); }
.modal-content {
  position: relative;
  background: white;
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  z-index: 1;
}
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--text-light); }
.auth-tabs { display: flex; gap: 0; margin-bottom: 24px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid #eee; }
.auth-tab { flex: 1; padding: 10px; border: none; background: #f5f5f5; font-weight: 700; cursor: pointer; transition: 0.2s; font-family: 'Nunito', sans-serif; }
.auth-tab.active { background: var(--purple); color: white; }
.auth-form h3 { font-size: 1.5rem; margin-bottom: 4px; }
.auth-sub { color: var(--text-light); margin-bottom: 20px; font-size: 0.9rem; }
.auth-form input[type="email"],
.auth-form input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #eee;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  transition: 0.2s;
}
.auth-form input:focus { outline: none; border-color: var(--purple); }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-light); margin-bottom: 16px; cursor: pointer; }
.hidden { display: none !important; }

/* Lesson page */
.lesson-hero {
  background: linear-gradient(135deg, var(--purple), #a29bfe);
  color: white;
  padding: 60px 0;
  text-align: center;
}
.lesson-badge {
  background: var(--yellow);
  color: var(--text);
  padding: 6px 16px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-block;
  margin-bottom: 16px;
}
.lesson-title { font-size: 2.8rem; font-weight: 900; margin-bottom: 12px; }
.lesson-sub { font-size: 1.15rem; opacity: 0.9; margin-bottom: 16px; }
.lesson-meta { display: flex; justify-content: center; gap: 24px; font-size: 0.95rem; opacity: 0.85; }
.lesson-layout { display: grid; grid-template-columns: 1fr 300px; gap: 32px; }
.lesson-main { min-width: 0; }

.mascot-tip {
  background: #FFF8E1;
  border: 3px solid var(--yellow);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 24px;
}
.mascot-tip-icon { font-size: 2.5rem; }

.quest-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  overflow: hidden;
}
.quest-header {
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: white;
  padding: 16px 24px;
  font-weight: 800;
  font-size: 1.1rem;
}
.quest-practice .quest-header {
  background: linear-gradient(135deg, var(--cyan), #00A8A8);
}
.quest-body { padding: 24px; }
.quest-body p { margin-bottom: 16px; }
.quest-step {
  background: #F8F9FA;
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 12px;
}
.step-badge {
  display: inline-block;
  background: var(--yellow);
  padding: 2px 10px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 8px;
}
.quest-tip {
  background: #E8F8F5;
  border-left: 4px solid var(--green);
  padding: 12px 16px;
  border-radius: 8px;
  font-weight: 600;
}
.prompt-ideas { margin-bottom: 16px; padding-left: 20px; }
.prompt-ideas li { margin-bottom: 6px; color: var(--text-light); cursor: pointer; transition: 0.2s; }
.prompt-ideas li:hover { color: var(--purple); }
.prompt-input-group { display: flex; gap: 12px; }
.prompt-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid #eee;
  border-radius: var(--radius-sm);
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  transition: 0.2s;
}
.prompt-input:focus { outline: none; border-color: var(--purple); }

.completion-card {
  background: linear-gradient(135deg, var(--green), #55EFC4);
  color: white;
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}
.completion-card h3 { font-size: 1.8rem; margin-bottom: 8px; }
.completion-card p { margin-bottom: 20px; opacity: 0.9; }
.completion-actions { display: flex; gap: 12px; justify-content: center; }
.completion-card .btn-outline { border-color: white; color: white; }
.completion-card .btn-outline:hover { background: white; color: var(--green); }

/* Sidebar */
.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.sidebar-card h4 { margin-bottom: 16px; font-size: 1.05rem; }
.program-item {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}
.program-item.active { background: #E8F8F5; color: var(--green); }
.program-item.locked { background: #f5f5f5; color: var(--text-light); }
.achievement {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  background: #E8F8F5;
  font-weight: 600;
  font-size: 0.9rem;
}
.achievement.locked { background: #f5f5f5; color: var(--text-light); }

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.pricing-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pricing-popular {
  border: 3px solid var(--purple);
  transform: scale(1.05);
}
.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: white;
  padding: 6px 20px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.85rem;
  white-space: nowrap;
}
.pricing-badge { font-size: 2rem; }
.pricing-card h3 { font-size: 1.4rem; }
.price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--purple);
}
.price-period { font-size: 0.85rem; color: var(--text-light); margin-top: -12px; }
.pricing-features { list-style: none; text-align: left; }
.pricing-features li { padding: 8px 0; font-size: 0.9rem; border-bottom: 1px solid #f0f0f0; }

/* Pressure Test page */
.pt-hero { text-align: center; padding: 60px 0 0; }
.pt-form { max-width: 600px; margin: 32px auto; }
.pt-form textarea {
  width: 100%;
  min-height: 150px;
  padding: 16px;
  border: 2px solid #eee;
  border-radius: var(--radius-sm);
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  margin-bottom: 16px;
  resize: vertical;
  transition: 0.2s;
}
.pt-form textarea:focus { outline: none; border-color: var(--purple); }

/* Auth status */
.auth-status { font-size: 0.85rem; margin-bottom: 8px; text-align: center; min-height: 24px; }

/* Burger menu */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 110;
}
.burger span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--text);
  border-radius: 3px;
  transition: 0.3s;
}
.burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* Reviews */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  text-align: center;
}
.review-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 12px;
  border: 3px solid var(--purple);
}
.review-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.review-stars { color: var(--yellow); font-size: 1.2rem; margin-bottom: 8px; }
.review-text { font-style: italic; color: var(--text-light); margin-bottom: 12px; font-size: 0.95rem; }
.review-author { font-weight: 700; font-size: 0.9rem; }
.review-role { font-size: 0.8rem; color: var(--text-light); }

/* FAQ */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-question {
  padding: 16px 20px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: 0.2s;
  user-select: none;
}
.faq-question:hover { background: #f8f8ff; }
.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--purple);
  font-weight: 900;
  transition: 0.3s;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: 0.3s;
  color: var(--text-light);
  font-size: 0.95rem;
}
.faq-item.open .faq-answer {
  padding: 0 20px 16px;
  max-height: 200px;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.5s ease forwards; }

/* Responsive */
@media (max-width: 768px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-title { font-size: 2.2rem; }
  .hero-sub { margin: 0 auto 32px; }
  .hero-cta { justify-content: center; flex-wrap: wrap; }
  .hero-stats { justify-content: center; gap: 16px; }
  .features-grid { grid-template-columns: 1fr; }
  .parents-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-popular { transform: none; }
  .lesson-layout { grid-template-columns: 1fr; }
  .lesson-title { font-size: 2rem; }
  .lesson-meta { flex-wrap: wrap; gap: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links {
    display: flex;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: white;
    flex-direction: column;
    padding: 80px 24px 24px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    transition: right 0.3s;
    z-index: 105;
    gap: 16px;
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1.1rem; padding: 8px 0; }
  .nav-links .btn { width: 100%; justify-content: center; margin-top: 8px; }
  .burger { display: flex; }
  .hero-stats { gap: 16px; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.8rem; }
  .cta-card { padding: 32px 20px; }
  .cta-card h2 { font-size: 1.6rem; }
  .completion-actions { flex-direction: column; }
}