:root {
  color-scheme: light;
  --bg: #f7efe2;
  --panel: #fffaf1;
  --ink: #241b16;
  --muted: #79685c;
  --line: #e1cdb8;
  --accent: #9d2f24;
  --accent-dark: #6f211b;
  --gold: #d8a640;
  --green: #287857;
  --red: #b33b30;
  --shadow: 0 18px 48px rgba(70, 43, 25, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #fff5d4, transparent 34%), var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button.secondary,
button.ghost {
  background: #f3e4d2;
  color: var(--accent-dark);
}

button.success {
  background: var(--green);
}

button.danger {
  background: var(--red);
}

.hero,
main,
footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 3rem 0 1.5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 4.8rem);
  letter-spacing: -0.06em;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
}

.stats {
  align-self: flex-start;
  min-width: 118px;
  padding: 1rem;
  border: 2px solid var(--accent);
  border-radius: 24px;
  background: var(--panel);
  text-align: center;
  box-shadow: var(--shadow);
}

.stats strong {
  display: block;
  font-size: 2.5rem;
}

.tabs,
.toolbar,
.panel {
  border: 1px solid var(--line);
  background: rgba(255, 250, 241, 0.88);
  box-shadow: var(--shadow);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 999px;
  position: sticky;
  top: 12px;
  z-index: 2;
  backdrop-filter: blur(14px);
}

.tab {
  flex: 1;
  background: transparent;
  color: var(--muted);
}

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

.toolbar {
  display: grid;
  grid-template-columns: 1fr 220px auto;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border-radius: 28px;
}

.search,
.select {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-weight: 700;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.8rem 0.9rem;
  background: #fff;
  color: var(--ink);
}

.panel {
  display: none;
  padding: 1.25rem;
  border-radius: 32px;
}

.active-view {
  display: block;
}

.section-title {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.section-title h2 {
  margin: 0;
  font-size: 1.6rem;
}

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

.list {
  display: grid;
  gap: 0.75rem;
}

.list-item,
.memory-card,
.quiz-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fffdf8;
}

.list-item summary {
  display: grid;
  grid-template-columns: 110px 1fr 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  cursor: pointer;
}

.list-item p {
  margin: 0;
  padding: 0 1rem 1rem 8.5rem;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  background: #f6ddc4;
  color: var(--accent-dark);
  font-size: 0.84rem;
  font-weight: 800;
}

.actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.memory-card {
  padding: 1rem;
}

.memory-card h3 {
  margin: 0.9rem 0;
  font-size: 1.45rem;
}

.answer,
.quiz-answer {
  margin-top: 0.9rem;
  border-radius: 18px;
  padding: 1rem;
  background: #f8ead8;
}

.answer p,
.quiz-answer p {
  margin-bottom: 0;
  color: var(--muted);
}

.hidden-answer {
  filter: blur(8px);
  user-select: none;
}

.quiz-card {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.25rem;
}

.quiz-meta,
.quiz-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.quiz-meta {
  justify-content: space-between;
  color: var(--muted);
  font-weight: 800;
}

.quiz-card h3 {
  margin: 2rem 0;
  font-size: clamp(2rem, 7vw, 4rem);
}

.score,
.empty,
footer {
  color: var(--muted);
}

footer {
  padding: 1.5rem 0 2.5rem;
}

code {
  border-radius: 8px;
  padding: 0.15rem 0.35rem;
  background: #f1ddc8;
}

@media (max-width: 760px) {
  .hero,
  .section-title {
    display: block;
  }

  .stats {
    margin-top: 1rem;
  }

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

  .tabs {
    border-radius: 24px;
  }

  .tab {
    padding: 0.7rem 0.5rem;
  }

  .list-item summary {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .list-item p {
    padding: 0 1rem 1rem;
  }
}