:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --border: #e5e7eb;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.app-header h1 {
  margin: 0;
  font-size: 1.4rem;
  color: var(--primary);
}

#auth-nav {
  display: flex;
  gap: 0.5rem;
}

.nav-btn {
  background: transparent;
  border: 1px solid var(--border);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
}

.nav-btn:hover {
  background: var(--bg);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

.hidden {
  display: none !important;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.card h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

form label {
  display: block;
  margin-bottom: 0.85rem;
  font-weight: 500;
  font-size: 0.9rem;
}

form input,
form select,
form textarea {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
}

form input:focus,
form select:focus,
form textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
}

button.primary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
}

button.primary:hover {
  background: var(--primary-hover);
}

button.danger {
  background: var(--danger);
  color: #fff;
  border: none;
  padding: 0.45rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}

button.danger:hover {
  background: var(--danger-hover);
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
  min-height: 1.2em;
  margin: 0.5rem 0 0;
}

.form-switch {
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.form-switch a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.form-switch a:hover {
  text-decoration: underline;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 720px) {
  .dashboard-grid,
  .row {
    grid-template-columns: 1fr;
  }
}

.welcome {
  margin-bottom: 1rem;
}

.welcome p {
  margin: 0;
  font-size: 1.1rem;
  color: var(--muted);
}

.calendar {
  display: grid;
  gap: 1rem;
}

.booking {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  background: #fafafa;
}

.booking-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.booking-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.booking-header time {
  font-size: 0.9rem;
  color: var(--muted);
}

.notes {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.booking-food {
  margin-top: 0.75rem;
}

.food-list {
  margin: 0.25rem 0 0;
  padding-left: 1.25rem;
}

.food-type {
  display: inline-block;
  text-transform: uppercase;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: var(--primary);
  color: #fff;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  margin-right: 0.25rem;
}

.no-food,
.empty {
  color: var(--muted);
  font-style: italic;
  margin: 0.25rem 0 0;
}

.delete-booking {
  margin-top: 0.75rem;
}