@import url("https://fonts.googleapis.com/css2?family=Fraunces:wght@400;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap");

:root {
  --bg: #eef0ea;
  --surface: #f9f7f2;
  --panel: #ffffff;
  --text: #1d1f1a;
  --muted: #5c5f57;
  --line: #d6d2c7;
  --accent: #1c5b46;
  --accent-soft: #e0efe9;
  --highlight: #f7e6b0;
  --danger: #8f2a2a;
  --shadow: 0 18px 40px rgba(20, 35, 28, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 15% 20%, #f5f8f1 0%, var(--bg) 42%, #e8ede3 100%);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.4rem 1.5rem 4rem;
  display: grid;
  gap: 1.6rem;
}

.hero {
  background: linear-gradient(120deg, #12261e, #214539 45%, #2f5e4b 100%);
  color: #f8f6ee;
  border-radius: 22px;
  padding: 2.2rem 2.4rem;
  box-shadow: var(--shadow);
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: #d7e2d7;
  font-weight: 600;
}

.hero h1 {
  font-family: "Fraunces", "Georgia", serif;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0.6rem 0 0.4rem;
}

.hero p {
  margin: 0;
  color: #e7eee4;
  font-size: 1.05rem;
  max-width: 56ch;
}

.hero-links {
  margin-top: 1rem;
}

.hero-link {
  display: inline-block;
  color: #f0f7f2;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.hero-link:hover {
  border-bottom-color: #f0f7f2;
}

.toolbar {
  background: var(--panel);
  border-radius: 18px;
  padding: 1.2rem 1.5rem;
  display: grid;
  gap: 1.2rem;
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(27, 40, 32, 0.08);
  position: sticky;
  top: 1rem;
  z-index: 10;
}

.mode-switch {
  display: inline-flex;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem;
  width: fit-content;
}

.mode-btn {
  border: none;
  background: transparent;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}

.mode-btn.active {
  background: var(--accent);
  color: #fff;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 600;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem 1rem;
}

.control {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.control input[type="search"],
.control select {
  font: inherit;
  padding: 0.6rem 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.control input[type="search"]:focus,
.control select:focus {
  outline: 2px solid rgba(28, 91, 70, 0.35);
  border-color: var(--accent);
}

.toggle {
  grid-auto-flow: column;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.6rem;
  background: var(--surface);
  padding: 0.65rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  color: var(--text);
}

.toggle input {
  accent-color: var(--accent);
}

.question-list {
  display: grid;
  gap: 1.1rem;
}

.practice-panel {
  display: none;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.practice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.practice-panel button {
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  cursor: pointer;
}

.practice-panel .ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}

.mode-practice .practice-panel {
  display: grid;
}

.category-group {
  display: grid;
  gap: 0.85rem;
}

.category-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-weight: 700;
  padding-left: 0.4rem;
}

.question-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.3rem 1.4rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 24px rgba(33, 41, 32, 0.06);
}

.question-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, #1c5b46, #6fa98d);
}

.question-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  align-items: baseline;
}

.question-number {
  font-weight: 700;
  color: var(--accent);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.question-text {
  font-family: "Fraunces", "Georgia", serif;
  font-size: 1.18rem;
  margin: 0.2rem 0 0;
}

.option-list {
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.option {
  padding: 0.65rem 0.8rem;
  border-radius: 12px;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: #fbfaf7;
  color: var(--text);
}

.option .marker {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  background: #e9e5da;
  color: #3f443a;
  flex: 0 0 28px;
}

.option.correct {
  border-color: #7dc1a6;
  background: var(--accent-soft);
  font-weight: 600;
}

.mode-practice .option.correct {
  border-color: transparent;
  background: #fbfaf7;
  font-weight: 400;
}

.option.correct .marker {
  background: var(--accent);
  color: #fff;
}

.option.incorrect {
  color: #6c6d67;
}

.hide-incorrect .option.incorrect {
  display: none;
}

.hide-highlights .option.correct {
  background: #fbfaf7;
  border-color: transparent;
  font-weight: 400;
}

.hide-highlights .option.correct .marker {
  background: #e9e5da;
  color: #3f443a;
}

.option.selected {
  border-color: #b8cbbf;
  background: #f1f5ee;
}

.option.result-correct {
  border-color: #63b48f;
  background: var(--accent-soft);
  font-weight: 600;
}

.option.result-wrong {
  border-color: #e5b5b5;
  background: #fbecec;
}

.explanation {
  margin-top: 0.75rem;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  background: #f6f4ee;
  border: 1px solid var(--line);
  color: var(--muted);
  display: none;
}

.explanation-sources {
  margin-top: 0.45rem;
  font-size: 0.85rem;
}

.explanation-sources a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.explanation-sources a:hover {
  text-decoration: underline;
}

.show-explanations .explanation {
  display: block;
}

.compact .question-card {
  padding: 0.9rem 1rem;
}

.compact .option {
  padding: 0.5rem 0.65rem;
}

.empty-state {
  background: var(--panel);
  border: 1px dashed var(--line);
  padding: 2rem;
  border-radius: 16px;
  color: var(--muted);
  text-align: center;
}

.monetize {
  margin-top: 1.2rem;
  padding: 1.6rem 1.8rem;
  border-radius: 20px;
  background: linear-gradient(120deg, #f5efe2, #f0f4ea 60%, #e8f0ea);
  border: 1px solid var(--line);
  display: grid;
  gap: 1rem;
  align-items: center;
  box-shadow: 0 16px 30px rgba(28, 36, 30, 0.08);
}

.monetize h2 {
  margin: 0 0 0.4rem;
  font-family: "Fraunces", "Georgia", serif;
}

.monetize p {
  margin: 0;
  color: var(--muted);
}

.monetize-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.cta {
  text-decoration: none;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 600;
  background: #fff;
}

.cta.primary {
  background: var(--accent);
  color: #fff;
}

.cta.ghost {
  border-color: var(--line);
  color: var(--text);
}

@media (max-width: 720px) {
  .toolbar {
    position: static;
  }

  .hero {
    padding: 1.6rem;
  }

  .question-text {
    font-size: 1.05rem;
  }
}