* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #f8f9fa;
  --color-white: #ffffff;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-border: #dfe6e9;
  --color-primary: #c0392b;
  --color-primary-hover: #a93226;
  --color-danger: #d63031;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);

  /* Family colors */
  --family-1: #0984e3;
  --family-2: #00b894;
  --family-3: #e17055;
  --family-4: #6c5ce7;
  --family-5: #fdcb6e;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  background-image: url('/bg.JPEG');
  background-size: cover;
  background-position: center top;
  background-attachment: fixed;
  color: var(--color-text);
  min-height: 100vh;
  padding-bottom: 2rem;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.15);
  pointer-events: none;
  z-index: 0;
}

header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

header, main {
  position: relative;
  z-index: 1;
}

.mobile-hero {
  display: none;
}

header h1 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

nav {
  display: flex;
  gap: 0.5rem;
}

.tab {
  padding: 0.5rem 1rem;
  border: none;
  background: var(--color-bg);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}

.tab.active {
  background: var(--color-primary);
  color: white;
}

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

/* Calendar */
.calendar-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow);
}

.calendar-controls button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
}

.calendar-controls span {
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  flex: 1;
}

#calendar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.month-card {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.month-card h3 {
  text-align: center;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.day-header {
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-light);
  padding: 0.25rem 0;
}

.day-cell {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 2px;
  font-size: 0.75rem;
  border-radius: 4px;
  position: relative;
  min-height: 32px;
}

.day-cell.today {
  font-weight: 700;
  outline: 2px solid var(--color-primary);
}

.day-cell .day-number {
  font-size: 0.7rem;
  margin-bottom: 1px;
}

.day-cell .booking-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin: 1px 0;
}

.day-cell .booking-bar {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  margin: 1px 0;
}

/* Family colors */
.family-0 { background-color: var(--family-1); }
.family-1 { background-color: var(--family-2); }
.family-2 { background-color: var(--family-3); }
.family-3 { background-color: var(--family-4); }
.family-4 { background-color: var(--family-5); }

/* Booking form */
.booking-form-container,
.shopping-form-container {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.booking-form-container h2,
#upcoming-bookings h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  box-shadow: var(--shadow);
  display: inline-block;
}

.form-row {
  margin-bottom: 1rem;
}

.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
  color: var(--color-text-light);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(9, 132, 227, 0.1);
}

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

.form-row-inline {
  display: flex;
  gap: 0.5rem;
}

.form-row-inline input {
  flex: 1;
}

.btn-primary {
  padding: 0.6rem 1.2rem;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

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

.btn-secondary {
  padding: 0.5rem 1rem;
  background: none;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  cursor: pointer;
  margin-top: 1rem;
}

.btn-delete {
  padding: 0.3rem 0.6rem;
  background: none;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius);
  font-size: 0.75rem;
  cursor: pointer;
}

.btn-edit {
  padding: 0.3rem 0.6rem;
  background: none;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  font-size: 0.75rem;
  cursor: pointer;
}

.booking-actions {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* Bookings list */
#bookings-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.booking-card {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  border-left: 4px solid var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.booking-card.family-color-0 { border-left-color: var(--family-1); }
.booking-card.family-color-1 { border-left-color: var(--family-2); }
.booking-card.family-color-2 { border-left-color: var(--family-3); }
.booking-card.family-color-3 { border-left-color: var(--family-4); }
.booking-card.family-color-4 { border-left-color: var(--family-5); }

.booking-info h4 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.booking-info p {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 0.15rem;
}

/* Shopping list */
#shopping-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.shopping-item {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.shopping-item.done {
  opacity: 0.5;
}

.shopping-item.done .item-name {
  text-decoration: line-through;
}

.shopping-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.shopping-item .item-name {
  flex: 1;
  font-size: 0.9rem;
}

.shopping-item .item-meta {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.shopping-item .btn-delete {
  flex-shrink: 0;
}

/* Legend */
.legend {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  grid-column: 1 / -1;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

/* Responsive */
@media (max-width: 900px) {
  body {
    background-image: none;
    background: var(--color-bg);
  }

  body::before {
    display: none;
  }

  .mobile-hero {
    display: block;
    width: 100%;
    height: 50vw;
    background-image: url('/bg.JPEG');
    background-size: cover;
    background-position: center;
  }

  #calendar-grid {
    grid-template-columns: 1fr;
  }

  .legend {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
}

@media (max-width: 600px) {
  header h1 {
    font-size: 1.2rem;
  }

  main {
    padding: 1rem;
  }

  .form-row-dates {
    grid-template-columns: 1fr;
  }

  .form-row-inline {
    flex-direction: column;
  }

  .booking-card {
    flex-direction: column;
    gap: 0.5rem;
  }
}