/* 한국사 아띠 관리자 페이지 스타일 */

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.6;
}

/* 헤더 스타일 */
.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header h1 {
  font-size: 2rem;
  font-weight: 600;
}

.header p {
  opacity: 0.9;
  margin-top: 0.5rem;
}

/* 네비게이션 */
.nav {
  background: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  margin-bottom: 2rem;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
  flex-wrap: wrap;
}

.nav-item a {
  text-decoration: none;
  color: #667eea;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.nav-item a:hover {
  background-color: #667eea;
  color: white;
}

.nav-item a.active {
  background-color: #667eea;
  color: white;
}

/* 컨테이너 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* 카드 스타일 */
.card {
  background: white;
  border-radius: 10px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  border: 1px solid #e1e8ed;
}

.card h2 {
  color: #333;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  border-bottom: 2px solid #667eea;
  padding-bottom: 0.5rem;
}

/* 폼 스타일 */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #555;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #e1e8ed;
  border-radius: 5px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-control.error {
  border-color: #e74c3c;
}

.form-control.success {
  border-color: #27ae60;
}

/* 버튼 스타일 */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.btn-primary {
  background-color: #667eea;
  color: white;
}

.btn-primary:hover {
  background-color: #5a6fd8;
  transform: translateY(-2px);
}

.btn-success {
  background-color: #27ae60;
  color: white;
}

.btn-success:hover {
  background-color: #229954;
}

.btn-danger {
  background-color: #e74c3c;
  color: white;
}

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

.btn-warning {
  background-color: #f39c12;
  color: white;
}

.btn-warning:hover {
  background-color: #e67e22;
}

.btn-secondary {
  background-color: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background-color: #5a6268;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

/* 테이블 스타일 */
.table-container {
  overflow-x: auto;
  margin-top: 1rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.table th,
.table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #e1e8ed;
}

.table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: #555;
}

.table tr:hover {
  background-color: #f8f9fa;
}

/* 알림 메시지 */
.alert {
  padding: 1rem;
  border-radius: 5px;
  margin-bottom: 1rem;
  border-left: 4px solid;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border-left-color: #27ae60;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border-left-color: #e74c3c;
}

.alert-warning {
  background-color: #fff3cd;
  color: #856404;
  border-left-color: #f39c12;
}

.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border-left-color: #17a2b8;
}

/* 로딩 스피너 */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* 모달 스타일 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
  background-color: white;
  margin: 5% auto;
  padding: 2rem;
  border-radius: 10px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #e1e8ed;
}

.modal-header h3 {
  margin: 0;
  color: #333;
}

.close {
  color: #aaa;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}

.close:hover {
  color: #333;
}

/* 그리드 레이아웃 */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* 계층 구조 표시 */
.hierarchy {
  background: #f8f9fa;
  border-left: 4px solid #667eea;
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 5px 5px 0;
}

.hierarchy-item {
  display: flex;
  align-items: center;
  margin: 0.5rem 0;
  padding: 0.5rem;
  background: white;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.hierarchy-level {
  background: #667eea;
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  font-size: 0.8rem;
  margin-right: 1rem;
  min-width: 80px;
  text-align: center;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  .header {
    padding: 1rem;
  }

  .nav {
    padding: 1rem;
  }

  .nav-list {
    flex-direction: column;
    gap: 0.5rem;
  }

  .card {
    padding: 1rem;
  }

  .modal-content {
    margin: 10% auto;
    width: 95%;
  }

  .table-container {
    font-size: 0.9rem;
  }

  .table th,
  .table td {
    padding: 0.5rem;
  }
}

/* 애니메이션 */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in {
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

/* 유틸리티 클래스 */
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.text-left {
  text-align: left;
}

.mt-1 {
  margin-top: 0.5rem;
}
.mt-2 {
  margin-top: 1rem;
}
.mt-3 {
  margin-top: 1.5rem;
}
.mt-4 {
  margin-top: 2rem;
}

.mb-1 {
  margin-bottom: 0.5rem;
}
.mb-2 {
  margin-bottom: 1rem;
}
.mb-3 {
  margin-bottom: 1.5rem;
}
.mb-4 {
  margin-bottom: 2rem;
}

.p-1 {
  padding: 0.5rem;
}
.p-2 {
  padding: 1rem;
}
.p-3 {
  padding: 1.5rem;
}
.p-4 {
  padding: 2rem;
}

.d-none {
  display: none;
}
.d-block {
  display: block;
}
.d-flex {
  display: flex;
}
.d-grid {
  display: grid;
}

.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.align-center {
  align-items: center;
}

.w-100 {
  width: 100%;
}
.h-100 {
  height: 100%;
}

/* Section 목록 스타일 */
.sections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.section-card {
  background: white;
  border: 1px solid #e1e5e9;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s ease;
}

.section-card:hover {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.section-header h4 {
  margin: 0;
  color: #2c3e50;
  font-size: 1.1rem;
  flex: 1;
}

.section-actions {
  display: flex;
  gap: 0.5rem;
  margin-left: 1rem;
}

.section-info {
  color: #6c757d;
  font-size: 0.9rem;
}

.section-info p {
  margin: 0.25rem 0;
}

/* Keyword 카드 스타일 */
.keyword-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.keyword-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border: 1px solid #e1e5e9;
  transition: all 0.3s ease;
  overflow: hidden;
}

.keyword-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.keyword-card-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.keyword-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.keyword-number {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 700;
}

.keyword-card-actions {
  display: flex;
  gap: 0.5rem;
}

.keyword-card-actions .btn {
  padding: 0.375rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.keyword-card-actions .btn-warning {
  background: #ffc107;
  color: #212529;
}

.keyword-card-actions .btn-warning:hover {
  background: #e0a800;
}

.keyword-card-actions .btn-danger {
  background: #dc3545;
  color: white;
}

.keyword-card-actions .btn-danger:hover {
  background: #c82333;
}

.keyword-card-body {
  padding: 1.5rem;
}

.keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.keyword-tag {
  background: #e3f2fd;
  color: #1976d2;
  padding: 0.375rem 0.75rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid #bbdefb;
  transition: all 0.2s ease;
}

.keyword-tag:hover {
  background: #bbdefb;
  transform: scale(1.05);
}

.keyword-card-footer {
  background: #f8f9fa;
  padding: 0.75rem 1.5rem;
  border-top: 1px solid #e1e5e9;
}

.keyword-card-footer .text-muted {
  color: #6c757d;
  font-size: 0.8rem;
}

/* 반응형 디자인 - Keyword 카드 */
@media (max-width: 768px) {
  .keyword-cards-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .keyword-card-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .keyword-card-actions {
    width: 100%;
    justify-content: space-between;
  }

  .keyword-card-actions .btn {
    flex: 1;
  }
}