:root {
  color-scheme: light;
  --bg: #f6f3ee;
  --panel: #fffaf3;
  --ink: #1f2933;
  --muted: #637083;
  --line: #dfd6c8;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --green: #147d64;
  --red: #b42318;
  --amber: #a16207;
  --shadow: 0 18px 50px rgba(31, 41, 51, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), transparent 36%),
    linear-gradient(315deg, rgba(20, 125, 100, 0.1), transparent 34%),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.embedded {
  min-height: auto;
  background: transparent;
}

button {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.app {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: 24px;
  min-height: 100vh;
  padding: 24px;
}

body.embedded .app {
  min-height: auto;
  padding: 0;
}

.is-hidden {
  display: none !important;
}

.home-screen {
  display: grid;
  gap: 28px;
  align-content: center;
  width: min(1120px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 44px 0;
}

body.embedded .home-screen {
  min-height: auto;
  width: 100%;
  padding: 0;
}

.home-hero {
  display: grid;
  gap: 12px;
}

.home-hero h1 {
  max-width: 820px;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 0.98;
}

.home-copy {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.subject-card {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 16px;
  align-items: center;
  min-height: 150px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 250, 243, 0.9);
  box-shadow: var(--shadow);
  color: var(--ink);
  padding: 22px;
  text-align: left;
}

.subject-card.available:hover {
  border-color: var(--blue);
  transform: translateY(-1px);
}

.subject-card:disabled {
  cursor: default;
  opacity: 0.68;
}

.subject-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 10px;
  background: #1f2933;
  color: #fffaf3;
  font-size: 30px;
  font-weight: 900;
}

.subject-card strong {
  display: block;
  font-size: 22px;
  line-height: 1.15;
}

.subject-card small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.3;
}

.home-legal {
  display: flex;
  justify-content: center;
}

.home-legal a,
.legal-back,
.legal-card a {
  color: var(--blue-dark);
  text-decoration: none;
}

.home-legal a:hover,
.legal-back:hover,
.legal-card a:hover {
  text-decoration: underline;
}

.legal-page {
  background: var(--bg);
}

.legal-wrap {
  display: grid;
  gap: 18px;
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 56px;
}

.legal-hero,
.legal-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 250, 243, 0.94);
  box-shadow: var(--shadow);
}

.legal-hero {
  display: grid;
  gap: 12px;
  padding: 28px;
}

.legal-hero h1 {
  max-width: 840px;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.02;
}

.legal-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
}

.legal-back {
  width: max-content;
  font-weight: 800;
}

.legal-card {
  display: grid;
  gap: 12px;
  padding: 24px 28px;
}

.legal-card h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1.15;
}

.legal-card h3 {
  margin: 8px 0 0;
  font-size: 18px;
  line-height: 1.25;
}

.legal-card p,
.legal-card li {
  font-size: 16px;
  line-height: 1.6;
}

.legal-card ul,
.legal-card ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 22px;
}

.sidebar,
.workspace {
  border: 1px solid var(--line);
  background: rgba(255, 250, 243, 0.88);
  box-shadow: var(--shadow);
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
  border-radius: 12px;
  padding: 20px;
}

.brand {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  align-items: center;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: #1f2933;
  color: #fffaf3;
  font-size: 31px;
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 21px;
  line-height: 1.15;
}

.brand p,
.eyebrow {
  color: var(--muted);
  font-size: 14px;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.primary,
.secondary {
  min-height: 42px;
  padding: 10px 14px;
}

.primary {
  background: var(--blue);
  color: white;
}

.primary:hover {
  background: var(--blue-dark);
}

.primary.active,
.secondary.active {
  border-color: var(--blue);
  background: var(--blue);
  color: white;
}

.secondary {
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
}

.secondary:hover {
  border-color: #b7aa99;
}

.wide {
  width: 100%;
}

.sections {
  display: none;
  gap: 8px;
  overflow: auto;
  padding-right: 2px;
}

.sections.visible {
  display: grid;
}

.section-button {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  padding: 8px 10px;
  text-align: left;
}

.section-button:hover,
.section-button.active {
  border-color: var(--blue);
}

.section-number {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: #eef4ff;
  color: var(--blue-dark);
  font-weight: 800;
}

.section-name {
  min-width: 0;
  font-size: 14px;
  line-height: 1.2;
}

.section-count {
  color: var(--muted);
  font-size: 13px;
}

.workspace {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 18px;
  border-radius: 14px;
  padding: 24px;
}

.topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

h2 {
  margin-top: 4px;
  font-size: clamp(24px, 3vw, 42px);
  line-height: 1.05;
}

.score {
  min-width: 92px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px 12px;
  text-align: center;
  font-weight: 800;
}

.progress {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #eadfce;
}

#progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--blue));
  transition: width 180ms ease;
}

.study-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.tool-button {
  min-height: 36px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  padding: 8px 12px;
}

.tool-button.active {
  border-color: var(--blue);
  background: var(--blue);
  color: white;
}

.question-panel {
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  padding: 24px;
  overflow: auto;
}

.empty-state {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 22px;
  min-height: 360px;
  color: var(--muted);
  text-align: center;
}

.georgian-strip {
  display: grid;
  grid-template-columns: repeat(4, 64px);
  gap: 10px;
}

.georgian-strip span {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--blue-dark);
  font-size: 34px;
  font-weight: 900;
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.pill {
  border-radius: 999px;
  background: #eef4ff;
  color: var(--blue-dark);
  padding: 6px 10px;
  font-weight: 800;
}

.question-text {
  margin-top: 18px;
  font-size: 24px;
  line-height: 1.35;
  font-weight: 800;
}

.hint,
.feedback,
.translation-box,
.key-box {
  margin-top: 16px;
  border-radius: 8px;
  padding: 12px 14px;
  line-height: 1.45;
}

.hint {
  border: 1px solid #f2d08c;
  background: #fff8e8;
  color: #684708;
}

.translation-box {
  display: grid;
  gap: 8px;
  border: 1px solid #b8c7ee;
  background: #f3f7ff;
  color: #253858;
}

.key-box {
  display: grid;
  gap: 8px;
  border: 1px solid #a9dbc9;
  background: #ecfdf6;
  color: #155b4c;
}

.feedback.correct {
  border: 1px solid #a9dbc9;
  background: #ecfdf6;
  color: var(--green);
}

.feedback.wrong {
  border: 1px solid #f3b4ad;
  background: #fff1ef;
  color: var(--red);
}

.answers {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.answer {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  width: 100%;
  min-height: 58px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  padding: 10px 14px;
  text-align: left;
}

.answer:hover {
  border-color: var(--blue);
}

.answer-letter {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 6px;
  background: #f4f0e8;
  color: var(--ink);
  font-size: 20px;
}

.answer-translation {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.3;
}

.answer.correct {
  border-color: var(--green);
  background: #f2fff9;
}

.answer.wrong {
  border-color: var(--red);
  background: #fff4f2;
}

.summary {
  display: grid;
  gap: 16px;
}

.summary-score {
  font-size: 52px;
  line-height: 1;
  font-weight: 900;
}

.mistakes {
  display: grid;
  gap: 10px;
}

.mistake {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

@media (max-width: 860px) {
  .home-screen {
    min-height: auto;
    padding: 24px 0;
  }

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

  .subject-card {
    min-height: 116px;
  }

  .app {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .workspace,
  .sidebar {
    padding: 16px;
  }

  .topline {
    display: grid;
  }

  .score {
    width: max-content;
  }

  .question-panel {
    min-height: 360px;
    padding: 16px;
  }

  .question-text {
    font-size: 20px;
  }

  .georgian-strip {
    grid-template-columns: repeat(4, 48px);
  }

  .georgian-strip span {
    width: 48px;
    height: 48px;
  }
}