* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #222;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: #2f3e57;
  color: white;
}

header a { color: white; }

header form { margin: 0; }

button, input[type="submit"] {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 1rem;
}

main {
  max-width: 900px;
  margin: 1rem auto;
  padding: 0 1rem;
}

.login-box {
  max-width: 360px;
  margin: 3rem auto;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.login-box input {
  width: 100%;
  padding: 0.6rem;
  margin-bottom: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
}

.login-box .submit {
  width: 100%;
  background: #2f3e57;
  color: white;
}

.error { color: #c0392b; margin-bottom: 1rem; }

.kid-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.kid-card {
  background: white;
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.kid-card img {
  max-width: 100%;
  height: 220px;
  object-fit: contain;
}

.kid-card h2 { margin: 0.5rem 0 0.25rem; }

.points-line {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.extra-points { color: #b8860b; font-weight: 600; }

.point-buttons {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.point-buttons button {
  min-width: 3rem;
  font-weight: 700;
}

.btn-add { background: #2ecc71; color: white; }
.btn-sub { background: #e74c3c; color: white; }

table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; background: white; }
th, td { padding: 0.5rem; border-bottom: 1px solid #eee; text-align: left; font-size: 0.9rem; }

.settings-form, .chart-controls {
  background: white;
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.settings-form label, .chart-controls label { display: block; margin: 0.5rem 0; }

.kid-section { margin-bottom: 2rem; }

.chart-controls .kid-checks { display: flex; gap: 1rem; flex-wrap: wrap; }