/* 케이스수학학원 데일리 리포트 시스템 스타일 */

/* 기본 스타일 */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f7fafc;
  color: #2d3748;
}

/* 유틸리티 클래스 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* 버튼 스타일 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background-color: #4299e1;
  color: white;
}

.btn-primary:hover {
  background-color: #3182ce;
}

.btn-success {
  background-color: #48bb78;
  color: white;
}

.btn-success:hover {
  background-color: #38a169;
}

.btn-danger {
  background-color: #f56565;
  color: white;
}

.btn-danger:hover {
  background-color: #e53e3e;
}

/* 카드 스타일 */
.card {
  background: white;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  padding: 2rem;
  margin-bottom: 1.5rem;
  border: 1px solid #e2e8f0;
}

.card-header {
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #2d3748;
  margin: 0;
}

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

.form-label {
  display: block;
  font-weight: 500;
  color: #4a5568;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #e2e8f0;
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.form-control:focus {
  outline: none;
  border-color: #4299e1;
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

.form-control:disabled {
  background-color: #f7fafc;
  color: #a0aec0;
}

/* 라디오 버튼 스타일 */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.radio-item {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 0.5rem 1rem;
  border: 2px solid #e2e8f0;
  border-radius: 0.5rem;
  transition: all 0.2s ease-in-out;
}

.radio-item:hover {
  border-color: #4299e1;
  background-color: #ebf8ff;
}

.radio-item input[type="radio"] {
  margin-right: 0.5rem;
  accent-color: #4299e1;
}

.radio-item input[type="radio"]:checked + span {
  font-weight: 600;
  color: #2b6cb0;
}

/* 섹션 스타일 */
.section {
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #2d3748;
  margin-bottom: 1rem;
  padding: 1rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
}

.section-title i {
  margin-right: 0.5rem;
}

/* 색상별 섹션 */
.section-attendance {
  background-color: #ebf8ff;
  border-left: 4px solid #4299e1;
}

.section-class-content {
  background-color: #f0fff4;
  border-left: 4px solid #48bb78;
}

.section-participation {
  background-color: #fffbeb;
  border-left: 4px solid #ed8936;
}

.section-homework {
  background-color: #fef5e7;
  border-left: 4px solid #f6ad55;
}

.section-test {
  background-color: #faf5ff;
  border-left: 4px solid #9f7aea;
}

.section-notes {
  background-color: #fed7d7;
  border-left: 4px solid #f56565;
}

/* 테이블 스타일 */
.table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background: white;
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table th,
.table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
}

.table th {
  background-color: #f7fafc;
  font-weight: 600;
  color: #4a5568;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.table tr:hover {
  background-color: #f7fafc;
}

/* 그리드 레이아웃 */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-cols-5 {
  grid-template-columns: repeat(5, 1fr);
}

@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .md\:grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .md\:grid-cols-5 {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .lg\:grid-cols-5 {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* 알림 스타일 */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.alert-success {
  background-color: #f0fff4;
  border: 1px solid #9ae6b4;
  color: #276749;
}

.alert-error {
  background-color: #fed7d7;
  border: 1px solid #feb2b2;
  color: #c53030;
}

.alert-warning {
  background-color: #fefcbf;
  border: 1px solid #f6e05e;
  color: #744210;
}

.alert-info {
  background-color: #ebf8ff;
  border: 1px solid #90cdf4;
  color: #2c5282;
}

/* 로딩 스타일 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #4299e1;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* 파일 업로드 스타일 */
.file-upload {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.file-upload input[type="file"] {
  position: absolute;
  left: -9999px;
}

.file-upload-label {
  display: flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background-color: #f7fafc;
  border: 2px dashed #cbd5e0;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.file-upload-label:hover {
  border-color: #4299e1;
  background-color: #ebf8ff;
}

.file-upload-label i {
  margin-right: 0.5rem;
  color: #4299e1;
}

/* 프린트 스타일 */
@media print {
  body {
    background: white;
    font-size: 12pt;
    line-height: 1.4;
  }
  
  .no-print {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
  
  .section-title {
    background: #f5f5f5 !important;
    color: #333 !important;
    border: 1px solid #ddd;
  }
}

/* 반응형 스타일 */
@media (max-width: 768px) {
  .container {
    padding: 0 0.5rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4,
  .grid-cols-5 {
    grid-template-columns: 1fr;
  }
  
  .radio-group {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .table {
    font-size: 0.875rem;
  }
  
  .table th,
  .table td {
    padding: 0.5rem;
  }
}

/* 애니메이션 */
.fade-in {
  animation: fadeIn 0.3s ease-in;
}

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

/* 스크롤바 스타일 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a0aec0;
}