:root {
  --primary-color: #4a90e2;
  --secondary-color: #50e3c2;
  --background-color: #f4f7f6;
  --card-background: #ffffff;
  --text-color: #333;
  --text-light: #777;
  --border-color: #e0e0e0;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --status-red: #ffebee;
  --status-red-text: #c62828;
  --status-green: #e8f5e9;
  --status-green-text: #2e7d32;
  --status-yellow: #fffde7;
  --status-yellow-text: #f9a825;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Poppins", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
}
.container {
  display: none;
}
#login-container.active {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}
.login-box {
  background: var(--card-background);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-align: center;
  width: 100%;
  max-width: 400px;
  margin: 1rem;
}
.login-box h1 {
  margin-bottom: 2rem;
  color: var(--primary-color);
}
#app-container.active {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
header {
  background: var(--card-background);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);

}

#nav-logo {
    text-decoration: none;
    &:hover { 
        text-decoration: none; 
    }
}
nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600;
  transition: color 0.3s;
}
nav a:hover,
nav a.active {
  color: var(--primary-color);
}
.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}
main {
  padding: 2rem;
  flex-grow: 1;
}
.btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
}
.btn-primary {
  background-color: var(--primary-color);
  color: white;
}
.btn-primary:hover {
  background-color: #357abd;
}
.btn-secondary {
  background-color: #f0f0f0;
  color: var(--text-color);
}
.btn-secondary:hover {
  background-color: #e0e0e0;
}
.btn-danger {
  background-color: var(--status-red-text);
  color: white;
}
.btn-danger:hover {
  background-color: #a02020;
}
.input-group {
  margin-bottom: 1.5rem;
  text-align: left;
}
.input-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.input-group input,
.input-group select,
.input-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: "Poppins", sans-serif;
}
.error-message {
  color: var(--status-red-text);
  margin-top: 1rem;
}
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.member-card,
.gift-card {
  background: var(--card-background);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}
.member-card {
  text-align: center;
  cursor: pointer;
}
.member-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}
.member-card h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
}
.section-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color);
}
.gift-card h4 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.gift-card .price {
  font-weight: 700;
  color: var(--secondary-color);
  font-size: 1.2rem;
}
.gift-card .meta {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 0.5rem;
}
.gift-card p {
  margin: 0.5rem 0;
}
.card-actions {
  display: flex;
  gap: 0.5rem;
}
.action-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-light);
  padding: 0.2rem;
}
.action-btn:hover {
  color: var(--primary-color);
}
.action-btn.delete-btn:hover {
  color: var(--status-red-text);
}
.reimbursement-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}
.reimbursement-table th,
.reimbursement-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}
.reimbursement-table th {
  font-weight: 600;
  color: var(--text-light);
  font-size: 0.9rem;
}
.reimbursement-table tr.status-unpaid {
  background-color: var(--status-red);
}
.reimbursement-table tr.status-paid {
  background-color: var(--status-green);
}
.reimbursement-table tr.status-partial {
  background-color: var(--status-yellow);
}
.reimbursement-table .status-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 0.2rem;
}
.reimbursement-table .status-tag.unpaid {
  background-color: var(--status-red-text);
  color: white;
}
.reimbursement-table .status-tag.paid {
  background-color: var(--status-green-text);
  color: white;
}
.reimbursement-table .status-tag.partial {
  background-color: var(--status-yellow-text);
  color: white;
}
.reimbursement-table .remaining-amount {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--status-yellow-text);
}
.reimbursement-table .user-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.reimbursement-table .user-actions button {
  font-size: 0.8rem;
  padding: 0.3rem 0.6rem;
}
.reimbursement-table .user-actions input {
  width: 70px;
  padding: 0.3rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}
.price-input {
  width: 90px;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--primary-color);
  border-radius: 4px;
  font-family: "Poppins", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-color);
}
.archive-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.year-btn.active {
  background-color: var(--primary-color);
  color: white;
}
.archive-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.sub-title {
  color: var(--text-light);
  font-size: 1.2rem;
}
.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  font-size: 2rem;
  border: none;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}
.modal {
  display: none;
  position: fixed;
  z-index: 1001;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
}
.modal.active {
  display: flex;
}
.modal-content {
  background-color: #fefefe;
  margin: auto;
  padding: 2rem;
  border: 1px solid #888;
  width: 90%;
  max-width: 500px;
  border-radius: 12px;
  position: relative;
}
.close-button {
  color: #aaa;
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}
#modal-type-selector {
  text-align: center;
  margin-bottom: 1.5rem;
}
.form-switch {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1rem;
}
.form-switch .btn.active {
  background-color: var(--primary-color);
  color: white;
}
#add-form {
  display: none;
}
#add-form.visible {
  display: block;
}
.checkbox-group {
  max-height: 150px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
}
.checkbox-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.2rem 0;
  margin-bottom: 0.5rem;
}
#add-form .submit-btn {
  width: 100%;
  padding: 0.8rem;
  font-size: 1.1rem;
  margin-top: 1.5rem;
}
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  nav {
    margin-top: 0.5rem;
  }
  main {
    padding: 1rem;
  }
  .fab {
    bottom: 1rem;
    right: 1rem;
  }
}

.lang-switcher {
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--card-background);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    cursor: pointer;
}