:root {
  color-scheme: light;
  --green: #2f7d32;
  --border: #ccc;
}

body {
  font-family: system-ui, sans-serif;
  margin: 0 auto;
  max-width: 960px;
  padding: 1.5rem;
  color: #1a1a1a;
}

header p {
  color: #444;
}

#day-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 1rem;
}

.tab {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
}

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

#grid-container {
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

table.grid {
  border-collapse: collapse;
  width: 100%;
}

table.grid th,
table.grid td {
  border: 1px solid var(--border);
  text-align: center;
  padding: 0.4rem;
  min-width: 2.4rem;
}

table.grid th {
  background: #f2f2f2;
  font-weight: 600;
  font-size: 0.85rem;
}

td.free {
  cursor: pointer;
  background: #fff;
}

td.free:hover {
  background: #eef7ee;
}

td.blocked {
  background: #eee;
  color: #999;
}

td.selected {
  cursor: pointer;
  font-weight: bold;
  color: #fff;
}

td.selected.p1 { background: var(--green); }
td.selected.p2 { background: #6aa84f; }
td.selected.p3 { background: #a8d5a2; color: #1a1a1a; }

#wish-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 420px;
}

#wish-form label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-weight: 600;
}

#wish-form input {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

#wish-form button {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 6px;
  background: var(--green);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}

#form-message.error { color: #b3261e; }
#form-message.success { color: var(--green); }