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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f5f5f5;
  color: #333;
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.4rem;
  font-weight: bold;
  padding: 16px 0 12px;
  border-bottom: 2px solid #2d6cdf;
  margin-bottom: 20px;
  color: #2d6cdf;
}

h2 {
  font-size: 1rem;
  font-weight: bold;
  margin-bottom: 12px;
  color: #555;
}

/* Form */
.form-section {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group--full {
  grid-column: 1 / -1;
}

label {
  font-size: 0.8rem;
  color: #666;
  font-weight: 600;
}

input[type="text"],
input[type="number"],
input[type="date"] {
  padding: 8px 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.95rem;
  width: 100%;
  background: #fafafa;
}

input:focus {
  outline: none;
  border-color: #2d6cdf;
  background: #fff;
}

.btn-primary {
  background: #2d6cdf;
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary:hover {
  background: #1d5bbf;
}

/* List */
.list-section {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.filter-area {
  font-size: 0.85rem;
  color: #555;
  display: flex;
  align-items: center;
  gap: 6px;
}

.filter-area label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-weight: 400;
}

.summary {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: #f0f4ff;
  border-radius: 6px;
}

.lot-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lot-card {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.lot-card.status--expired {
  border-left: 4px solid #e53935;
  background: #fff5f5;
}

.lot-card.status--warning {
  border-left: 4px solid #f9a825;
  background: #fffdf0;
}

.lot-card.status--ok {
  border-left: 4px solid #43a047;
  background: #f8fff8;
}

.lot-info {
  flex: 1;
}

.lot-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.lot-number {
  font-weight: bold;
  font-size: 0.95rem;
}

.product-name {
  font-size: 0.9rem;
  color: #444;
}

.status-badge {
  font-size: 0.75rem;
  font-weight: bold;
  padding: 2px 8px;
  border-radius: 12px;
  white-space: nowrap;
}

.badge--expired {
  background: #e53935;
  color: #fff;
}

.badge--warning {
  background: #f9a825;
  color: #fff;
}

.badge--ok {
  background: #43a047;
  color: #fff;
}

.lot-details {
  font-size: 0.82rem;
  color: #666;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.lot-details span {
  white-space: nowrap;
}

.lot-memo {
  font-size: 0.82rem;
  color: #888;
  margin-top: 4px;
  font-style: italic;
}

.btn-delete {
  background: none;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  color: #999;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-delete:hover {
  background: #e53935;
  color: #fff;
  border-color: #e53935;
}

.empty-msg {
  text-align: center;
  color: #aaa;
  padding: 32px 0;
  font-size: 0.9rem;
}

@media (max-width: 480px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group--full {
    grid-column: 1;
  }

  .lot-card {
    flex-direction: column;
    gap: 8px;
  }

  .btn-delete {
    align-self: flex-end;
  }
}