:root {
  --pro-ink: #202343;
  --pro-muted: #747790;
  --pro-line: #e8eaf3;
  --pro-purple: #6655ed;
  --pro-blue: #4777ed;
  --pro-surface: #fff;
}

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  color: var(--pro-ink);
  font-family: "Noto Sans Devanagari", "Segoe UI", "Nirmala UI", system-ui, sans-serif;
  background-color: #f8f9fc;
  background-image: none;
  animation: none;
  -webkit-font-smoothing: antialiased;
}

a, button, input, select, textarea {
  font: inherit;
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid #8d7fff;
  outline-offset: 3px;
}

/* Class 3 Hindi portal */
.main-header {
  position: sticky;
  top: 0;
  padding: 0;
  border-bottom: 1px solid var(--pro-line);
  background: #ffffffed;
  box-shadow: 0 5px 20px #2023430a;
  backdrop-filter: blur(14px);
  animation: none;
}

.header-content {
  width: min(1180px, calc(100% - 40px));
  min-height: 76px;
  padding: 10px 0;
}

.logo {
  gap: 11px;
  color: var(--pro-ink);
  font-size: 19px;
  animation: none;
}

.logo svg, .logo svg text {
  animation: none;
}

.logo svg circle {
  fill: var(--pro-purple);
}

.logo h1 {
  font-size: 18px;
  font-weight: 800;
}

.nav-menu {
  gap: 5px;
}

.nav-menu .nav-link {
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: #5a5d78;
  background: transparent;
  font-size: 12px;
  font-weight: 700;
}

.nav-menu .nav-link:hover, .nav-menu .nav-link.active {
  border-color: #e9e6ff;
  color: var(--pro-purple);
  background: #f5f3ff;
  transform: none;
}

.main-content {
  width: min(1180px, 100%);
  padding: 34px 20px 50px;
}

.welcome-box {
  padding: clamp(27px, 5vw, 46px);
  border: 1px solid #e8e6ff;
  border-radius: 20px;
  color: var(--pro-ink);
  background: linear-gradient(120deg, #f0efff, #eef6ff 58%, #edf9f3);
  box-shadow: 0 12px 32px #34316a10;
  animation: none;
}

.welcome-box h2 {
  margin: 0 0 10px;
  color: var(--pro-ink);
  font-size: clamp(25px, 4vw, 36px);
  animation: none;
}

.welcome-box p {
  color: #535671;
  font-size: 15px;
}

.welcome-box .subtitle {
  color: var(--pro-muted);
  font-size: 12px;
}

.progress-section, .instructions-section, .feature-box, .topic-content, .lesson-content, .quiz-container {
  border: 1px solid var(--pro-line);
  border-radius: 16px;
  box-shadow: 0 8px 26px #2023430a;
}

.progress-section h3, #progressText {
  color: var(--pro-purple);
}

.progress-bar {
  height: 12px;
  border-radius: 20px;
  box-shadow: none;
}

.progress-fill {
  border-radius: inherit;
  background: linear-gradient(90deg, var(--pro-purple), #53a4ed 60%, #54bb8c);
}

.grammar-grid, .lessons-grid, .features-grid {
  gap: 14px;
}

.chapter-card, .lesson-card {
  min-height: 145px;
  padding: 19px;
  border: 1px solid var(--pro-line);
  border-radius: 14px;
  color: var(--pro-ink);
  background: var(--pro-surface) !important;
  box-shadow: 0 6px 20px #2023430a;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.chapter-card:hover, .lesson-card:hover {
  border-color: #d8d3ff;
  box-shadow: 0 12px 26px #30287314;
  transform: translateY(-3px);
}

.chapter-card h3, .lesson-card h3 {
  color: var(--pro-ink);
  font-size: 14px;
}

.chapter-card p, .lesson-card p {
  color: var(--pro-muted);
  font-size: 11px;
}

.card-icon, .feature-icon, .lesson-icon, .topic-icon {
  animation: none;
}

.card-icon, .feature-icon {
  color: var(--pro-purple);
}

.content-box {
  padding: 20px;
  border: 1px solid var(--pro-line);
  border-radius: 13px;
  background: #fff;
}

.topic-header, .lesson-header {
  padding: clamp(26px, 5vw, 42px) 22px;
  border: 1px solid #e8e6ff;
  border-radius: 18px;
  color: var(--pro-ink);
  background: linear-gradient(120deg, #f0efff, #eef6ff 58%, #edf9f3) !important;
  box-shadow: 0 10px 28px #2023430d;
  animation: none;
}

.topic-header h1, .lesson-header h1 {
  color: var(--pro-ink);
  font-size: clamp(25px, 4vw, 34px);
}

.topic-header p, .lesson-header p {
  color: var(--pro-muted);
  font-size: 14px;
}

.topic-icon, .lesson-icon {
  font-size: 42px;
}

.badge {
  border-radius: 20px;
  color: #5146be;
  background: #eae7ff;
}

.footer {
  padding: 24px 16px;
  color: #dfe1f4;
  background: #242642;
}

/* Class 3 EVS chapter and quiz portal */
.wrap {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 34px 22px 60px;
}

.wrap > .site-header {
  margin-bottom: 26px;
  padding: 27px 25px;
  border: 1px solid #e8e6ff;
  border-radius: 18px;
  background: linear-gradient(120deg, #f0efff, #eef6ff 58%, #edf9f3);
  box-shadow: 0 10px 28px #2023430d;
}

.wrap > .site-header h1 {
  color: var(--pro-ink);
  background: none;
  font-size: clamp(26px, 4vw, 36px);
  -webkit-text-fill-color: currentColor;
}

.wrap > .site-header .lead {
  color: var(--pro-muted);
  font-size: 13px;
}

.grid {
  gap: 14px;
}

.grid .card {
  min-height: 195px;
  border: 1px solid var(--pro-line);
  border-radius: 15px;
  color: var(--pro-ink);
  background: #fff !important;
  box-shadow: 0 7px 22px #2023430c;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.grid .card:hover {
  border-color: #d8d3ff;
  box-shadow: 0 13px 28px #30287316;
  transform: translateY(-3px);
  filter: none;
}

.grid .card .badge {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  border: 0;
  border-radius: 17px;
  color: var(--pro-purple);
  background: #f0efff;
  box-shadow: none;
  font-size: 30px;
}

.grid .card .title {
  color: var(--pro-ink);
  font-size: 15px;
}

.grid .card .icons {
  font-size: 17px;
  letter-spacing: 1px;
  filter: none;
}

.grid .card .subtitle {
  color: var(--pro-muted);
}

.grid .card .badge {
  color: #5146be;
  background: #f0efff;
}

.modal-content {
  border: 1px solid var(--pro-line);
  border-radius: 18px;
  box-shadow: 0 22px 70px #17182e35;
}

.modal-title, .question-text, .result-question {
  color: var(--pro-ink);
}

.option, .result-option {
  border-radius: 10px;
}

.btn {
  border-radius: 10px;
  font-weight: 700;
  transition: transform .18s ease, box-shadow .18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

@media (max-width: 650px) {
  .header-content {
    width: calc(100% - 28px);
    min-height: 66px;
    gap: 12px;
  }

  .logo {
    font-size: 16px;
  }

  .logo svg {
    width: 36px;
    height: 36px;
  }

  .nav-menu .nav-link {
    padding: 8px 9px;
    font-size: 10px;
  }

  .main-content {
    padding: 22px 14px 36px;
  }

  .wrap {
    padding: 20px 14px 40px;
  }

  .wrap > .site-header {
    padding: 23px 16px;
  }

  .grid {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  }

  .topic-content, .lesson-content, .quiz-container {
    padding: 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}