:root {
  --page-bg: #fff8ee;
  --card-bg: #ffffff;
  --ink: #233247;
  --muted: #546477;
  --orange: #f37a3d;
  --orange-soft: #fff0dc;
  --blue: #197696;
  --blue-soft: #e8f4f7;
  --border: #ead9c7;
  --shadow: 0 12px 38px rgba(75, 46, 19, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--page-bg);
  color: var(--ink);
  font-family: "Noto Sans Kannada", "Nirmala UI", "Tiro Kannada",
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  margin: 0;
}

.lesson {
  margin: 0 auto;
  max-width: 940px;
  padding: 32px 20px 52px;
}

.top-nav {
  margin: 0 0 16px;
}

.top-nav a {
  align-items: center;
  background: var(--blue-soft);
  border-radius: 999px;
  color: var(--blue);
  display: inline-flex;
  font-size: 1.04rem;
  font-weight: 700;
  padding: 11px 18px;
  text-decoration: none;
}

.top-nav a::before {
  content: "\2190";
  font-size: 1.25rem;
  margin-right: 8px;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  background: #cae7ee;
  outline: 3px solid rgba(25, 118, 150, 0.25);
}

.bottom-nav {
  margin-top: 30px;
  text-align: center;
}

.bottom-nav a {
  background: var(--orange);
  border-radius: 999px;
  color: #fff;
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 15px 28px;
  text-decoration: none;
}

.bottom-nav a:hover,
.bottom-nav a:focus-visible {
  background: #db6530;
  outline: 3px solid rgba(243, 122, 61, 0.25);
}

.hero {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: clamp(24px, 5vw, 46px);
}

.eyebrow {
  color: var(--blue);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1 {
  color: var(--orange);
  font-size: clamp(2.35rem, 7vw, 3.8rem);
  line-height: 1.15;
  margin: 0 0 14px;
}

.intro {
  color: var(--muted);
  font-size: clamp(1.08rem, 2.4vw, 1.24rem);
  margin: 0 0 26px;
  max-width: 680px;
}

.tip {
  background: var(--orange-soft);
  border-left: 5px solid var(--orange);
  border-radius: 12px;
  font-size: 1.02rem;
  padding: 14px 18px;
}

.phonics-note {
  border-top: 1px dashed #e8c596;
  color: var(--muted);
  margin: 12px 0 0;
  padding-top: 12px;
}

.alphabet-section {
  margin-top: 34px;
}

.section-heading {
  align-items: baseline;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin-bottom: 14px;
}

h2 {
  color: var(--blue);
  font-size: clamp(1.45rem, 3.4vw, 1.75rem);
  margin: 0;
}

.section-heading p {
  color: var(--muted);
  font-size: 0.96rem;
  margin: 0;
}

.table-wrapper {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

table {
  border-collapse: collapse;
  width: 100%;
}

thead {
  background: var(--blue);
  color: #fff;
}

thead th {
  font-size: 1.02rem;
  line-height: 1.3;
  padding: 16px 14px;
  text-align: left;
}

thead span {
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0.92;
}

thead th:nth-child(3) {
  width: 120px;
}

tbody tr {
  border-bottom: 1px solid var(--border);
}

tbody tr:last-child {
  border-bottom: 0;
}

tbody tr:nth-child(even) {
  background: #fffaf3;
}

tbody th,
tbody td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: middle;
}

tbody th {
  white-space: nowrap;
}

.capital {
  color: var(--orange);
  display: inline-block;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 2.55rem;
  font-weight: 750;
  line-height: 1;
  margin-right: 12px;
  width: 42px;
}

.small {
  color: var(--orange);
  display: inline-block;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 2.7rem;
  font-weight: 750;
  line-height: 1;
  width: 42px;
}

tbody td:nth-child(2) {
  color: var(--blue);
  font-size: 1.7rem;
  font-weight: 650;
}

tbody td:nth-child(4) strong {
  display: inline-block;
  font-size: 1.24rem;
  letter-spacing: 0.035em;
  margin-right: 12px;
}

tbody td:nth-child(4) span {
  color: var(--muted);
  font-size: 1.05rem;
}

button {
  align-items: center;
  background: var(--blue-soft);
  border: 0;
  border-radius: 999px;
  color: var(--blue);
  cursor: pointer;
  display: inline-flex;
  font-family: inherit;
  font-size: 0;
  font-weight: 700;
  gap: 6px;
  height: 56px;
  justify-content: center;
  min-width: 96px;
  padding: 0 14px;
  transition: background 0.15s ease, transform 0.15s ease;
}

button::before {
  background: no-repeat center / contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23197696' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11 5 6 9H3v6h3l5 4V5Z'/%3E%3Cpath d='M15.5 8.5a5 5 0 0 1 0 7'/%3E%3Cpath d='M18 6a8.5 8.5 0 0 1 0 12'/%3E%3C/svg%3E");
  content: "";
  display: block;
  height: 26px;
  width: 26px;
}

button::after {
  content: "ಕೇಳಿ";
  font-size: 0.98rem;
}

button:hover,
button:focus-visible {
  background: #cae7ee;
  outline: 3px solid rgba(25, 118, 150, 0.25);
}

button:active {
  transform: scale(0.95);
}

.practice {
  background: var(--blue-soft);
  border-radius: 20px;
  margin-top: 30px;
  padding: 24px clamp(22px, 5vw, 34px);
}

.practice ol {
  margin: 14px 0 0;
  padding-left: 28px;
}

.practice li {
  margin: 8px 0;
}

.home {
  margin: 0 auto;
  max-width: 940px;
  padding: clamp(24px, 6vw, 54px) 20px;
}

.home-hero {
  text-align: center;
}

.home-hero .intro {
  margin-left: auto;
  margin-right: auto;
}

.choices {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 32px;
}

.choice {
  background: var(--card-bg);
  border: 2px solid transparent;
  border-radius: 24px;
  box-shadow: var(--shadow);
  color: var(--ink);
  display: block;
  padding: clamp(24px, 4vw, 34px);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.choice:hover,
.choice:focus-visible {
  border-color: var(--orange);
  outline: 0;
  transform: translateY(-2px);
}

.choice-letters {
  color: var(--orange);
  display: block;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: clamp(3.8rem, 8vw, 5.5rem);
  font-weight: 750;
  line-height: 1;
  margin-bottom: 20px;
}

.choice h2 {
  margin-bottom: 12px;
}

.choice p {
  color: var(--muted);
  font-size: 1.06rem;
  margin: 0 0 22px;
}

.theme-choice {
  background: linear-gradient(145deg, #fff, #fff5df);
  grid-column: 1 / -1;
}

.theme-visuals {
  display: block;
  font-size: clamp(2.35rem, 6vw, 3.1rem);
  letter-spacing: 0.12em;
  line-height: 1;
  margin-bottom: 23px;
}

.quiz-choice {
  align-items: center;
  display: grid;
  gap: 0 28px;
  grid-column: 1 / -1;
  grid-template-columns: auto 1fr auto;
}

.quiz-choice .choice-letters {
  grid-row: 1 / 4;
  margin: 0;
}

.quiz-choice h2,
.quiz-choice p {
  grid-column: 2;
}

.quiz-choice .start {
  grid-column: 3;
  grid-row: 1 / 4;
}

.start {
  background: var(--orange-soft);
  border-radius: 999px;
  color: var(--orange);
  display: inline-block;
  font-weight: 700;
  padding: 10px 18px;
}

.theme-hero {
  background: linear-gradient(145deg, #fff, #fff5df);
}

.theme-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.theme-card {
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 7px 22px rgba(75, 46, 19, 0.06);
  display: grid;
  gap: 4px 14px;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  padding: 15px 15px 15px 12px;
}

.theme-card.divine {
  background: #fffdf8;
  border-color: #ecd7aa;
}

.theme-card.local {
  background: #f7fcfd;
  border-color: #cce5ea;
}

.theme-letter {
  align-items: center;
  background: var(--orange-soft);
  border-radius: 14px;
  color: var(--orange);
  display: flex;
  flex-direction: column;
  font-family: "Segoe UI", Arial, sans-serif;
  font-weight: 750;
  grid-row: 1 / 4;
  height: 80px;
  justify-content: center;
}

.theme-letter strong {
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 2.2rem;
  line-height: 1;
}

.theme-letter span {
  color: var(--blue);
  font-size: 0.91rem;
  line-height: 1.15;
  margin-top: 4px;
}

.theme-icon {
  font-size: 1.75rem;
  grid-column: 2;
  line-height: 1.15;
}

.theme-word {
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: clamp(0.98rem, 2vw, 1.08rem);
  font-weight: 750;
  grid-column: 2;
  letter-spacing: 0.025em;
  line-height: 1.25;
  margin: 0;
}

.theme-reading {
  color: var(--blue);
  font-size: 1.04rem;
  font-weight: 650;
  grid-column: 2;
  margin: 0;
}

.theme-card button {
  grid-column: 3;
  grid-row: 1 / 4;
  height: 52px;
  min-width: 82px;
  padding: 0 10px;
}

.theme-card button::after {
  font-size: 0.9rem;
}

.quiz {
  margin: 0 auto;
  max-width: 820px;
  padding: 32px 20px 52px;
}

.quiz-hero h1 {
  margin-bottom: 16px;
}

.quiz-panel,
.results {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 26px;
  box-shadow: var(--shadow);
  margin-top: 28px;
  padding: clamp(22px, 5vw, 36px);
}

.quiz-progress {
  color: var(--muted);
  display: flex;
  font-size: 1.04rem;
  font-weight: 700;
  justify-content: space-between;
}

.quiz-progress p {
  margin: 0 0 12px;
}

.progress-bar {
  background: var(--blue-soft);
  border-radius: 999px;
  height: 12px;
  overflow: hidden;
}

#progress-fill {
  background: var(--orange);
  display: block;
  height: 100%;
  transition: width 0.25s ease;
  width: 0;
}

.quiz-prompt {
  color: var(--muted);
  font-size: 1.12rem;
  font-weight: 650;
  margin: 30px 0 10px;
  text-align: center;
}

.quiz-letter {
  color: var(--orange);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: clamp(6.5rem, 18vw, 9rem);
  font-weight: 750;
  line-height: 1;
  margin: 10px 0 28px;
  text-align: center;
}

.answer-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.quiz .answer-option {
  background: var(--blue-soft);
  border: 2px solid transparent;
  border-radius: 18px;
  color: var(--blue);
  display: block;
  font-size: clamp(1.55rem, 3vw, 1.85rem);
  height: auto;
  min-height: 76px;
  padding: 14px 16px;
  width: 100%;
}

.quiz .answer-option::before,
.quiz .answer-option::after,
.quiz .next-question::before,
.quiz .next-question::after,
.quiz .restart-test::before,
.quiz .restart-test::after {
  content: none;
}

.quiz .answer-option:hover,
.quiz .answer-option:focus-visible {
  background: #d7edf3;
}

.quiz .answer-option.correct-answer {
  background: #d8f4df;
  border-color: #25864a;
  color: #15582f;
}

.quiz .answer-option.wrong-answer {
  background: #ffe3de;
  border-color: #c84232;
  color: #982d24;
}

.answer-feedback {
  background: #fffaf3;
  border: 2px solid var(--border);
  border-radius: 20px;
  margin: 24px 0 26px;
  padding: 20px;
  text-align: center;
}

#feedback-text {
  font-size: 1.14rem;
  font-weight: 700;
  margin: 0 0 16px;
}

.correct-message {
  color: #197342;
}

.wrong-message {
  color: #a6382b;
}

.feedback-practice {
  align-items: center;
  background: var(--orange-soft);
  border-radius: 18px;
  display: flex;
  gap: 18px;
  justify-content: center;
  margin: 0 auto 20px;
  padding: 14px 20px;
}

.feedback-practice strong {
  color: var(--orange);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 3.1rem;
  line-height: 1;
}

.feedback-practice span {
  color: var(--blue);
  font-size: 1.7rem;
  font-weight: 700;
}

.advance-note {
  color: var(--muted);
  font-size: 1.02rem;
  margin: 0 0 15px;
}

.advance-note strong {
  color: var(--orange);
  font-size: 1.2rem;
}

.quiz .next-question,
.quiz .restart-test {
  background: var(--orange);
  border-radius: 999px;
  color: #fff;
  font-size: 1.14rem;
  height: auto;
  min-height: 56px;
  padding: 14px 26px;
}

.quiz .next-question:hover,
.quiz .next-question:focus-visible,
.quiz .restart-test:hover,
.quiz .restart-test:focus-visible {
  background: #db6530;
}

.results h2 {
  font-size: clamp(1.8rem, 4vw, 2.2rem);
  margin-bottom: 14px;
}

.result-score {
  font-size: 1.2rem;
  font-weight: 650;
  margin: 0 0 26px;
}

.results h3 {
  color: var(--blue);
  font-size: 1.35rem;
  margin: 0 0 10px;
}

#review-message {
  color: var(--muted);
  margin: 0 0 16px;
}

.review-list {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.review-card {
  align-items: center;
  background: var(--orange-soft);
  border-radius: 16px;
  display: grid;
  gap: 4px 14px;
  grid-template-columns: auto 1fr;
  padding: 12px 16px;
}

.review-card strong {
  color: var(--orange);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 2.6rem;
  grid-row: 1 / 3;
}

.review-card span {
  color: var(--blue);
  font-size: 1.35rem;
  font-weight: 700;
}

.review-card small {
  color: var(--muted);
}

.saved-note {
  background: var(--blue-soft);
  border-radius: 14px;
  color: var(--muted);
  margin: 24px 0;
  padding: 14px 16px;
}

.result-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.study-link {
  border: 2px solid var(--blue);
  border-radius: 999px;
  color: var(--blue);
  display: inline-flex;
  font-size: 1.08rem;
  font-weight: 700;
  padding: 12px 22px;
  text-decoration: none;
}

.study-link:hover,
.study-link:focus-visible {
  background: var(--blue-soft);
}

.screen-reader-only {
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

@media (max-width: 640px) {
  .lesson {
    padding: 16px 12px 32px;
  }

  .hero {
    border-radius: 20px;
  }

  .choices {
    grid-template-columns: 1fr;
  }

  .theme-grid {
    grid-template-columns: 1fr;
  }

  .theme-card {
    grid-template-columns: 54px minmax(0, 1fr) auto;
    padding-left: 10px;
  }

  .theme-letter {
    height: 78px;
  }

  .theme-letter strong {
    font-size: 2.05rem;
  }

  .theme-card button {
    font-size: 0;
    min-width: 56px;
  }

  .theme-card button::after {
    content: none;
  }

  .quiz-choice {
    display: block;
  }

  .quiz-choice .choice-letters {
    margin-bottom: 20px;
  }

  .quiz-choice .start {
    margin-top: 0;
  }

  .quiz {
    padding: 16px 12px 32px;
  }

  .answer-grid,
  .review-list {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  thead {
    display: none;
  }

  table,
  tbody,
  tr,
  th,
  td {
    display: block;
  }

  tbody tr {
    display: grid;
    gap: 9px;
    grid-template-columns: 1fr auto;
    padding: 14px 16px;
  }

  tbody th {
    grid-column: 1;
    padding: 0;
  }

  tbody td {
    padding: 0;
  }

  tbody td:nth-child(2),
  tbody td:nth-child(4) {
    grid-column: 1;
  }

  tbody td:nth-child(2)::before,
  tbody td:nth-child(4)::before {
    color: var(--muted);
    content: attr(data-label) ": ";
    font-size: 0.85rem;
    font-weight: 500;
  }

  tbody td:nth-child(3) {
    align-self: center;
    grid-column: 2;
    grid-row: 1 / 4;
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .lesson {
    max-width: none;
    padding: 24px 22px 42px;
  }

  thead th {
    font-size: 1.06rem;
    padding: 18px 16px;
  }

  tbody th,
  tbody td {
    padding-bottom: 16px;
    padding-top: 16px;
  }
}