:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --card-bg: rgba(255, 255, 255, 0.8);
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --accent: #ec4899;
  --radius: 16px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 20px;
}

#app {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

h1 {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 24px;
  background: linear-gradient(to right, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.input-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.full-width {
  grid-column: span 2;
}

input, select {
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.1);
  background: white;
  font-size: 1rem;
  transition: all 0.2s;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

button.primary {
  background: var(--primary);
  color: white;
  border: none;
  padding: 14px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button.primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
}

.filter-btn {
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(0,0,0,0.1);
  background: white;
  white-space: nowrap;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.item-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: white;
  border-radius: 12px;
  transition: all 0.2s;
  cursor: pointer;
}

.item:hover {
  transform: translateX(4px);
}

.item.bought {
  opacity: 0.5;
}

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

.checkbox {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.bought .checkbox {
  background: var(--primary);
}

.checkbox::after {
  content: "✓";
  color: white;
  font-size: 12px;
  display: none;
}

.bought .checkbox::after {
  display: block;
}

.item-info {
  flex-grow: 1;
}

.item-name {
  font-weight: 600;
  display: block;
}

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

.badge {
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.7rem;
  text-transform: uppercase;
  margin-left: 8px;
}

.badge-dad { background: #dbeafe; color: #1e40af; }
.badge-mom { background: #fce7f3; color: #9d174d; }
.badge-kids { background: #fef9c3; color: #854d0e; }
.badge-other { background: #f3f4f6; color: #374151; }

/* Image Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  backdrop-filter: blur(5px);
  cursor: zoom-out;
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  object-fit: contain;
  animation: modalZoom 0.3s ease-out;
}

@keyframes modalZoom {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.item-count-label {
  font-weight: 700;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}