/* 시트 형식 테이블 스타일 */

/* 시험 정보 섹션 */
.exam-info-sheet {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 2px solid var(--primary-color);
    margin-bottom: 1.5rem;
}

.exam-info-sheet h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.exam-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.exam-info-item {
    display: flex;
    flex-direction: column;
}

.exam-info-item label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.exam-info-item .form-control {
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.exam-info-item .form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.question-sheet-container {
    overflow-x: auto;
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: white;
}

.question-sheet {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 1400px;
}

.question-sheet thead {
    background: var(--background-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.question-sheet th {
    padding: 0.8rem 0.5rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    white-space: nowrap;
}

.question-sheet th:last-child {
    border-right: none;
}

.question-sheet tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.question-sheet tbody tr:hover {
    background: rgba(37, 99, 235, 0.03);
}

.question-sheet td {
    padding: 0;
    border-right: 1px solid var(--border-color);
    vertical-align: middle;
}

.question-sheet td:last-child {
    border-right: none;
}

/* 셀 입력 필드 스타일 */
.sheet-cell-input,
.sheet-cell-select,
.sheet-cell-textarea {
    width: 100%;
    padding: 0.6rem 0.5rem;
    border: none;
    background: transparent;
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: background-color 0.2s;
}

.sheet-cell-input:focus,
.sheet-cell-select:focus,
.sheet-cell-textarea:focus {
    background: #fffbeb;
    box-shadow: inset 0 0 0 2px var(--primary-color);
}

.sheet-cell-select {
    cursor: pointer;
    padding-right: 1.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    appearance: none;
}

.sheet-cell-textarea {
    min-height: 60px;
    resize: vertical;
}

/* 컬럼별 너비 */
.col-number {
    width: 60px;
}

.col-type {
    width: 100px;
}

.col-domain {
    width: 100px;
}

.col-subdomain {
    width: 120px;
}

.col-passage {
    width: 200px;
}

.col-points {
    width: 80px;
}

.col-answer {
    width: 100px;
}

.col-intent {
    width: 200px;
}

.col-explanation {
    width: 200px;
}

.col-actions {
    width: 80px;
    text-align: center;
}

.col-answer-input {
    width: 200px;
}

.col-student-name {
    width: 120px;
    min-width: 120px;
}

.col-student-info {
    width: 100px;
    min-width: 100px;
}

.col-answer-cell {
    width: 80px;
    min-width: 80px;
    text-align: center;
}

/* 답안 시트 전용 */
.answer-sheet {
    font-size: 0.85rem;
}

.answer-sheet .sheet-cell-input,
.answer-sheet .sheet-cell-select {
    padding: 0.4rem;
    font-size: 0.85rem;
}

.question-info-row th {
    background: var(--background-color);
    font-weight: normal;
    padding: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.question-info-cell {
    text-align: center;
}

.question-info-cell .question-type-badge {
    display: inline-block;
    margin-bottom: 0.25rem;
}

/* 답안 시트 전용 스타일 */
.answer-sheet-wrapper {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
}

.student-info-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--background-color);
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.student-info-header h4 {
    margin: 0;
    color: var(--primary-color);
}

.student-info-display {
    font-size: 1.1rem;
}

.student-info-display strong {
    color: var(--text-primary);
}

/* 액션 버튼 */
.sheet-action-cell {
    display: flex;
    gap: 0.3rem;
    padding: 0.5rem;
    justify-content: center;
}

.sheet-btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
    border: none;
    border-radius: 0.25rem;
    cursor: pointer;
    transition: all 0.2s;
}

.sheet-btn-edit {
    background: var(--primary-color);
    color: white;
}

.sheet-btn-edit:hover {
    background: #1d4ed8;
}

.sheet-btn-delete {
    background: var(--danger-color);
    color: white;
}

.sheet-btn-delete:hover {
    background: #b91c1c;
}

/* 행 추가 버튼 */
.add-row-section {
    padding: 1rem;
    text-align: left;
    border-top: 2px solid var(--border-color);
    background: var(--background-color);
}

.add-row-btn {
    padding: 0.6rem 1.2rem;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.add-row-btn:hover {
    background: #15803d;
    transform: translateY(-1px);
}

.add-row-btn.complete-btn {
    background: var(--primary-color);
    margin-left: 0.5rem;
}

.add-row-btn.complete-btn:hover {
    background: #1d4ed8;
}

/* 타입 배지 (읽기 전용 표시) */
.type-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 0.25rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.type-badge.multiple {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

.type-badge.essay {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

/* 입력 유효성 피드백 */
.sheet-cell-input.error {
    background: #fee;
    box-shadow: inset 0 0 0 1px var(--danger-color);
}

.sheet-cell-input.success {
    background: #efe;
}

/* 로딩 상태 */
.sheet-loading {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
}

/* 빈 상태 */
.sheet-empty {
    padding: 3rem;
    text-align: center;
    color: var(--text-secondary);
}

.sheet-empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* 툴바 */
.sheet-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--background-color);
    border-bottom: 1px solid var(--border-color);
}

.sheet-toolbar-left,
.sheet-toolbar-right {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.sheet-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sheet-info strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 반응형 */
@media (max-width: 768px) {
    .question-sheet-container {
        font-size: 0.85rem;
    }

    .sheet-cell-input,
    .sheet-cell-select,
    .sheet-cell-textarea {
        font-size: 0.85rem;
        padding: 0.5rem 0.4rem;
    }

    .sheet-btn {
        padding: 0.3rem 0.5rem;
        font-size: 0.75rem;
    }
}

/* 프린트 시 숨김 */
@media print {
    .sheet-toolbar,
    .add-row-section,
    .col-actions {
        display: none;
    }

    .question-sheet-container {
        border: none;
    }

    .sheet-cell-input,
    .sheet-cell-select {
        border: 1px solid #ddd;
    }
}

/* PDF 컨트롤 스타일 */
.exam-pdf-item {
    grid-column: span 2;
}

.pdf-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.pdf-filename {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.4rem 0.8rem;
    background: #e3f2fd;
    color: #1565c0;
    border-radius: 0.375rem;
    font-size: 0.85rem;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pdf-filename.no-file {
    background: #f5f5f5;
    color: #999;
}

.pdf-controls .btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}