/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #f5f5f7;
  min-height: 100vh;
}

/* ===== Header ===== */
header {
  background: #2c3e50;
  color: #fff;
  padding: 1.5rem 2rem;
  text-align: center;
}

header h1 {
  font-size: 1.6rem;
  font-weight: 700;
}

header .subtitle {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-top: 0.25rem;
}

/* ===== Main ===== */
main {
  max-width: 800px;
  margin: 1.5rem auto;
  padding: 0 1rem;
}

/* ===== Cards ===== */
.card {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.card p {
  margin-bottom: 0.75rem;
  color: #555;
}

.card label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  margin-top: 0.75rem;
  color: #333;
}

.card input[type="text"] {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 0.95rem;
}

.card input[type="text"]:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52,152,219,0.2);
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  background: #3498db;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1rem;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: #2980b9;
}

.btn-secondary {
  display: inline-block;
  background: #ecf0f1;
  color: #333;
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1rem;
  transition: background 0.15s;
}

.btn-secondary:hover {
  background: #dfe6e9;
}

.btn-danger {
  display: inline-block;
  background: #e74c3c;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1rem;
  transition: background 0.15s;
}

.btn-danger:hover {
  background: #c0392b;
}

.btn-small {
  background: #ecf0f1;
  color: #333;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-small:hover {
  background: #dfe6e9;
}

.btn-small.copied {
  background: #27ae60;
  color: #fff;
  border-color: #27ae60;
}

.btn-link {
  background: none;
  border: none;
  color: #3498db;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.25rem 0;
  margin-top: 0.25rem;
}

.btn-link:hover {
  text-decoration: underline;
}

.btn-icon {
  background: none;
  border: none;
  color: #999;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0.2rem 0.4rem;
  line-height: 1;
}

.btn-icon:hover {
  color: #e74c3c;
}

/* ===== Share Link Row ===== */
.share-link-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.share-link-row label {
  margin: 0;
  white-space: nowrap;
  font-weight: 600;
  font-size: 0.85rem;
}

.share-link-row input {
  flex: 1;
  padding: 0.4rem 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 0.85rem;
  background: #f9f9f9;
  color: #555;
}

/* ===== Author Cards ===== */
.author-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  background: #fafafa;
}

.author-card .reorder-btns {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-card .reorder-btns button {
  background: none;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.7rem;
  padding: 0.1rem 0.35rem;
  line-height: 1;
  color: #666;
}

.author-card .reorder-btns button:hover {
  background: #ecf0f1;
  color: #333;
}

.author-card .author-info {
  flex: 1;
  min-width: 0;
}

.author-card .author-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.author-card .author-affiliations {
  font-size: 0.8rem;
  color: #666;
  margin-top: 0.15rem;
}

.author-card .author-roles {
  font-size: 0.8rem;
  color: #888;
  margin-top: 0.25rem;
}

.author-card .author-roles span {
  color: #555;
}

.author-card .edit-btn {
  background: none;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  font-size: 0.8rem;
  cursor: pointer;
  color: #555;
  white-space: nowrap;
}

.author-card .edit-btn:hover {
  background: #ecf0f1;
}

.placeholder-text {
  font-style: italic;
  color: #999;
  font-size: 0.9rem;
}

/* ===== Output ===== */
.output-block {
  margin-bottom: 1rem;
}

.output-block:last-child {
  margin-bottom: 0;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.output-header span {
  font-weight: 600;
  font-size: 0.9rem;
  color: #333;
}

.output-header div {
  display: flex;
  gap: 0.35rem;
}

.output-text {
  background: #f9f9f9;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: 0.75rem;
  font-family: inherit;
  font-size: 0.85rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  min-height: 2.5rem;
  color: #333;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal {
  background: #fff;
  border-radius: 10px;
  padding: 1.5rem;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.modal h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.modal label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  margin-top: 0.75rem;
  color: #333;
}

.modal input[type="text"] {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 0.95rem;
}

.modal input[type="text"]:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52,152,219,0.2);
}

.required {
  color: #e74c3c;
}

/* Name fields */
.name-fields {
  display: flex;
  gap: 0.5rem;
}

.name-fields > div {
  flex: 1;
}

.name-fields > div.name-mi {
  flex: 0 0 3.5rem;
}

/* Affiliation rows */
.affiliation-group {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 0.6rem;
  margin-bottom: 0.5rem;
  background: #fafafa;
}

.affiliation-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.affiliation-group-header span {
  font-size: 0.8rem;
  font-weight: 600;
  color: #666;
}

.affiliation-group input[type="text"] {
  width: 100%;
  padding: 0.4rem 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
}

.affiliation-group input[type="text"]:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52,152,219,0.2);
}

.affiliation-detail-row {
  display: flex;
  gap: 0.4rem;
}

.affiliation-detail-row input {
  flex: 1;
  min-width: 0;
}

.affiliation-detail-row input.aff-state {
  flex: 0 0 4rem;
}

.affiliation-detail-row input.aff-postal {
  flex: 0 0 5.5rem;
}

/* Roles grid */
.roles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-top: 0.35rem;
}

.role-item {
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.1s;
}

.role-item:hover {
  background: #f0f7ff;
}

.role-item input[type="checkbox"] {
  margin-top: 0.2rem;
  cursor: pointer;
}

.role-item .role-label {
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
}

.role-item .role-tooltip {
  font-size: 0.75rem;
  color: #888;
  display: block;
  line-height: 1.3;
}

/* Modal actions */
.modal-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.25rem;
  align-items: center;
}

.modal-actions .btn-danger {
  margin-left: auto;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 1.5rem;
  color: #999;
  font-size: 0.8rem;
}

footer a {
  color: #3498db;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* ===== Utility ===== */
.hidden {
  display: none !important;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  header {
    padding: 1rem;
  }

  header h1 {
    font-size: 1.25rem;
  }

  main {
    padding: 0 0.5rem;
  }

  .card {
    padding: 1rem;
  }

  .share-link-row {
    flex-wrap: wrap;
  }

  .share-link-row input {
    min-width: 0;
  }

  .roles-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 1rem;
  }

  .author-card {
    flex-wrap: wrap;
  }
}