/* ======================================
   학사일정표 관리 시스템 — 스타일 오버라이드
   ====================================== */

/* ── fix: 오늘 컬럼에서 최고 차시 빨간 테두리가 파란색으로 덮이는 버그 수정 ── */
/* .week-plan-day--today .week-plan-lesson (specificity 0,2,0) 이
   .week-plan-lesson--leading (specificity 0,1,0) 의 border-color를 덮어쓰는 문제 */
.week-plan-day--today .week-plan-lesson.week-plan-lesson--leading {
  border: 2px solid #dc3545;
  background: #fff5f5;
}

/* ── 공통: 작은 화면 ── */
@media (max-width: 768px) {

  /* 앱 헤더 */
  .app-header {
    padding: 16px 12px;
  }
  .app-header h1 {
    font-size: 20px;
  }

  /* 에디터 헤더 (저장/뒤로/다음 버튼 영역) */
  .editor-header {
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
  }
  .editor-header .btn-back,
  .editor-header .btn-save,
  .editor-header .btn-next {
    padding: 8px 12px;
    font-size: 12px;
  }
  .editor-header .btn-next {
    margin-left: 0;
  }
  .header-info h2 {
    font-size: 16px;
  }
  .header-info .saved-info {
    font-size: 11px;
  }

  /* 캘린더 컨테이너 */
  .calendar-editor {
    padding: 8px;
  }
  .calendar-container {
    padding: 10px;
    border-radius: 8px;
  }

  /* 학년 필터 */
  .grade-filter-section {
    flex-wrap: wrap;
    padding: 10px;
    gap: 6px;
  }
  .grade-filter-select {
    width: 100%;
  }

  /* 월 제목 */
  .month-title {
    font-size: 16px;
    margin-bottom: 10px;
  }

  /* ★ 캘린더 그리드 핵심 수정 ★ */
  .calendar-grid {
    gap: 2px;
  }
  .day-header {
    padding: 4px 2px;
    font-size: 11px;
    border-radius: 4px;
  }
  .calendar-day {
    min-height: 48px;
    padding: 3px;
    border-width: 1px;
    border-radius: 4px;
  }
  .calendar-day.empty {
    min-height: 48px;
  }
  .day-number {
    font-size: 12px;
    margin-bottom: 2px;
  }

  /* 이벤트 뱃지 */
  .event-badges {
    gap: 1px;
    margin-top: 2px;
  }
  .event-badge {
    font-size: 8px;
    padding: 1px 3px;
    border-radius: 3px;
    max-width: 100%;
    display: block;
    line-height: 1.3;
  }
  .event-badge.direct {
    font-size: 7px;
    padding: 1px 2px;
    max-width: 100%;
  }
  .event-badge.more {
    font-size: 7px;
  }

  /* 모달 */
  .modal-content {
    width: 95%;
    padding: 20px 16px;
    max-width: none;
    max-height: 90vh;
    overflow-y: auto;
  }
  .modal-form .form-group {
    margin-bottom: 14px;
  }
  .grade-checkboxes {
    gap: 12px;
    flex-wrap: wrap;
  }
  .modal-actions {
    flex-direction: column;
    gap: 8px;
  }
  .modal-actions button {
    width: 100%;
  }

  /* 수업시수 테이블 */
  .class-session-table-container {
    padding: 10px;
    border-radius: 8px;
  }
  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .class-session-table {
    font-size: 12px;
    table-layout: auto;
  }
  .class-session-table th {
    padding: 8px 6px;
    font-size: 12px;
    white-space: nowrap;
  }
  .class-session-table td {
    padding: 6px;
    font-size: 12px;
  }
  .class-session-table th:nth-child(1),
  .class-session-table td:nth-child(1) { width: auto; min-width: 40px; }
  .class-session-table th:nth-child(2),
  .class-session-table td:nth-child(2) { width: auto; min-width: 70px; }
  .class-session-table th:nth-child(3),
  .class-session-table td:nth-child(3) { width: auto; min-width: 60px; }
  .class-session-table th:nth-child(4),
  .class-session-table td:nth-child(4) { width: auto; min-width: 50px; }
  .class-session-table th:nth-child(5),
  .class-session-table td:nth-child(5) { width: auto; min-width: 80px; }
  .class-session-table th:nth-child(6),
  .class-session-table td:nth-child(6) { width: auto; min-width: 80px; }
  .class-session-table th:nth-child(7),
  .class-session-table td:nth-child(7) { width: auto; min-width: 100px; max-width: none; }

  /* 교사 시간표 업로드 */
  .teacher-schedule-upload {
    padding: 10px;
  }
  .upload-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
  }
  .upload-header .btn-back {
    margin-right: 0;
  }
  .upload-header .header-info h2 {
    font-size: 16px;
  }

  /* 업로드 영역 */
  .file-upload-label {
    padding: 24px 12px;
  }
  .upload-icon {
    font-size: 36px;
    margin-bottom: 10px;
  }
  .upload-text {
    font-size: 13px;
  }
  .upload-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-upload,
  .btn-process {
    width: 100%;
    padding: 12px;
    font-size: 14px;
  }

  /* 선생님 시간표 */
  .teacher-timetable-table {
    font-size: 11px;
  }
  .teacher-timetable-table th,
  .teacher-timetable-table td {
    padding: 4px 3px;
    font-size: 11px;
  }
  .teacher-timetable-table th:first-child,
  .teacher-timetable-table td:first-child {
    width: 40px;
    min-width: 40px;
  }

  /* 수동 입력 그리드 */
  .manual-grid-table {
    font-size: 11px;
  }
  .manual-grid-table th {
    padding: 6px 3px;
    font-size: 11px;
  }
  .manual-grid-table th:first-child {
    width: 44px;
    min-width: 44px;
  }
  .manual-grid-input {
    padding: 4px 2px;
    font-size: 11px;
  }
  .manual-teacher-name-row {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .manual-teacher-name-input {
    max-width: 100%;
  }

  /* 탭 모드 토글 */
  .upload-mode-tabs {
    gap: 0;
  }
  .upload-mode-tab {
    padding: 10px 8px;
    font-size: 12px;
  }
  .mode-toggle-buttons {
    gap: 4px;
  }
  .mode-toggle-button {
    padding: 6px 10px;
    font-size: 12px;
  }

  /* 선택 폼 */
  .selection-section {
    padding: 16px;
  }

  /* 주간 수업 계획 */
  .week-plan-outer {
    padding: 14px;
  }
  .week-plan-lesson-header {
    gap: 4px;
  }
  .week-plan-period {
    font-size: 10px;
    padding: 1px 4px;
  }
  .week-plan-class {
    font-size: 12px;
  }
  .week-plan-session-num {
    font-size: 9px;
    padding: 1px 4px;
  }
  .week-plan-academic-event {
    font-size: 9px;
    padding: 1px 4px;
  }
  .week-plan-content,
  .week-plan-content-editable {
    font-size: 11px;
  }
  .week-plan-lesson--leading {
    border: 2px solid #f44336;
    background: #fff5f5;
  }

  /* 수업지도안 에디터 */
  .lesson-plan-editor-table {
    font-size: 12px;
  }
  .lesson-plan-editor-table th,
  .lesson-plan-editor-table td {
    padding: 4px 6px;
  }
  .lesson-plan-editor-table textarea {
    font-size: 12px;
    min-height: 32px;
  }
  .lesson-plan-editor-tabs {
    flex-wrap: wrap;
    gap: 4px;
  }
  .lesson-plan-editor-tab-button {
    font-size: 12px;
    padding: 5px 10px;
  }

  /* 학교 선택 & 학기 선택 */
  .school-selection,
  .year-semester-selection {
    margin: 20px 10px;
    padding: 20px 16px;
  }
  .school-selection h2,
  .year-semester-selection h2 {
    font-size: 18px;
    margin-bottom: 20px;
  }
  .semester-buttons button {
    padding: 12px 8px;
    font-size: 14px;
  }
  .confirm-actions {
    flex-direction: column;
  }

  /* 학생 시간표 업로드 */
  .student-timetable-upload {
    padding: 14px;
    margin: 10px;
    border-radius: 10px;
  }
}

/* ── 아주 작은 화면 (360px 이하) ── */
@media (max-width: 360px) {
  .calendar-day {
    min-height: 40px;
    padding: 2px;
  }
  .day-number {
    font-size: 11px;
  }
  .event-badge {
    font-size: 7px;
    padding: 1px 2px;
  }
  .day-header {
    font-size: 10px;
    padding: 3px 1px;
  }
  .editor-header {
    padding: 8px;
  }
  .editor-header .btn-back,
  .editor-header .btn-save,
  .editor-header .btn-next {
    padding: 6px 8px;
    font-size: 11px;
  }
}