* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(circle at 20% 10%, #8f86b8 0%, #3b4f73 45%, #1f2230 100%);
  color: #fff;
  display: grid;
  place-items: center;
  padding: 24px;
}

.app { width: min(920px, 100%); }

.header h1 { margin: 0 0 6px; font-weight: 700; letter-spacing: 0.04em; }
.sub { margin: 0 0 18px; opacity: 0.85; }

.card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 18px;
  padding: 18px;
  backdrop-filter: blur(10px);
}

.card__face {
  height: 300px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.18);
  display: grid;
  place-items: center;
  font-size: 44px;
  user-select: none;
}

.card__content h2 { margin: 0 0 6px; font-size: 28px; }
.meta { margin: 0 0 10px; opacity: 0.8; }
.meaning { margin: 0 0 14px; line-height: 1.5; opacity: 0.95; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 650;
  cursor: pointer;
}

button:hover { filter: brightness(1.05); }
button:active { transform: translateY(1px); }

#drawBtn { background: #ffffff; color: #1f2230; }
#dailyBtn { background: rgba(255,255,255,0.16); color: #fff; }
button.ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.22); }

.switch {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.10);
  font-size: 14px;
  opacity: 0.95;
}

.switch input { transform: translateY(1px); }

.tiny { margin: 12px 0 0; font-size: 13px; opacity: 0.8; }

@media (max-width: 720px) {
  .card { grid-template-columns: 1fr; }
  .card__face { height: 220px; }
}