:root {
  --bg: #f7f2e9;
  --panel: #fffdf8;
  --ink: #1f2937;
  --accent: #bf5b04;
  --accent-2: #0f766e;
  --muted: #6b7280;
  --border: #e5dccf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Helvetica Neue", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 10%, #fff7e6, var(--bg));
}

.app {
  max-width: 960px;
  margin: 2rem auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  padding: 0 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 10px 30px rgba(31, 41, 55, 0.06);
}

label {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

input {
  width: 100%;
  margin-top: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 0.75rem;
  font-size: 0.95rem;
}

.row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.between {
  justify-content: space-between;
  align-items: center;
}

button {
  border: none;
  border-radius: 10px;
  padding: 0.55rem 0.85rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

button.secondary {
  background: var(--accent-2);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.card {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 0.9rem;
  min-height: 120px;
  margin-top: 0.5rem;
  background: #fff;
}

.front {
  font-size: 1.15rem;
  font-weight: 700;
}

.back {
  margin-top: 0.7rem;
  color: var(--accent-2);
  font-size: 1.05rem;
}

.status {
  color: var(--muted);
  min-height: 1.2em;
}

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

.hidden {
  display: none;
}