:root {
  --bg: #f7f2e9;
  --panel: #fffaf2;
  --accent: #2d6a4f;
  --accent-soft: #dcefdc;
  --text: #1f2a20;
  --muted: #4d5b50;
  --danger: #8f2d2d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  background: radial-gradient(circle at top left, #fff7ea 0, var(--bg) 60%);
  color: var(--text);
}

body.large-text {
  font-size: 1.15rem;
}

.app {
  max-width: 1020px;
  margin: 0 auto;
  padding: 24px 18px 40px;
}

.hero h1 {
  margin: 4px 0 8px;
  font-family: "Fraunces", serif;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
}

.eyebrow {
  margin: 0;
  font-weight: 700;
  color: var(--accent);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.config,
.status,
.controls {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.config,
.status {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  padding: 12px;
  background: var(--panel);
  border: 1px solid #e8ddcb;
  border-radius: 14px;
}

.config label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}

select {
  min-height: 44px;
  border-radius: 10px;
  border: 2px solid #d7cab4;
  background: #fff;
  color: var(--text);
  padding: 6px 10px;
  font-weight: 700;
}

.status p {
  margin: 0;
}

.controls {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.btn {
  min-height: 52px;
  font-size: 1rem;
  border-radius: 12px;
  border: 2px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  outline: none;
  border-color: #194737;
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text);
  border: 2px solid #d7cab4;
}

.board {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(5, minmax(72px, 1fr));
  gap: 12px;
}

.card {
  min-height: 90px;
  border: 2px solid #d7cab4;
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  font-size: 1.04rem;
  font-weight: 700;
  cursor: pointer;
  padding: 6px;
}

body.large-text .card {
  font-size: 1.2rem;
}

.card.hidden {
  background: linear-gradient(135deg, #c8e6c8 0%, #a7d6af 100%);
  color: transparent;
}

.card.matched {
  background: var(--accent-soft);
  border-color: #8bc79c;
}

.card:focus-visible {
  outline: 3px solid #3a6ea5;
  outline-offset: 2px;
}

.message {
  margin-top: 16px;
  min-height: 24px;
  font-weight: 700;
}

.message.error {
  color: var(--danger);
}

@media (max-width: 760px) {
  .board {
    grid-template-columns: repeat(4, minmax(64px, 1fr));
  }
}

@media (max-width: 520px) {
  .board {
    grid-template-columns: repeat(3, minmax(64px, 1fr));
  }
}