body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 0.85rem; /* 기본 글자 크기 감소 */
}

h1, .h1 {
    font-size: 1.75rem;
}

h2, .h2 {
    font-size: 1.5rem;
}

h3, .h3 {
    font-size: 1.35rem;
}

h4, .h4 {
    font-size: 1.2rem;
}

h5, .h5 {
    font-size: 1.1rem;
}

h6, .h6 {
    font-size: 1rem;
}

main {
    flex: 1;
}

/* 캘린더 스타일 */
.calendar-container {
    background-color: #f8f9fa;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 0.5rem;
}

.calendar-table th {
    background-color: #007bff;
    color: white;
    font-weight: 600;
    padding: 6px 4px;
    text-align: center;
    font-size: 0.8rem;
}

.calendar-table td {
    padding: 4px;
    font-size: 0.8rem;
}

.calendar-cell {
    background-color: white;
    transition: background-color 0.2s;
    min-height: 60px;
    max-height: 80px;
    overflow-y: auto;
}

.calendar-cell:hover {
    background-color: #f0f8ff;
    cursor: pointer;
}

.category-row td {
    background-color: #e3f2fd;
    font-size: 0.9em;
    padding: 6px 8px;
    font-weight: 600;
}

.subcategory-row td:first-child {
    padding-left: 20px;
    font-size: 0.85em;
}

.report-item {
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    margin-bottom: 4px;
    padding: 2px 4px;
    font-size: 0.75rem;
    border-radius: 3px;
}

.report-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* 모달 스타일 */
.modal-content {
    border-radius: 8px;
}

.modal-header {
    background-color: #007bff;
    color: white;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    padding: 0.5rem 1rem;
}

.modal-body {
    padding: 0.75rem;
}

.modal-title {
    font-size: 1.1rem;
}

/* 버튼 스타일 */
.btn {
    border-radius: 4px;
    padding: 0.25rem 0.75rem;
    font-weight: 500;
    transition: all 0.2s;
    font-size: 0.8rem;
}

.btn-sm {
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
}

.btn:hover {
    transform: translateY(-1px);
}

/* 카드 스타일 */
.card {
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border: none;
    margin-bottom: 0.75rem;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    padding: 0.5rem 0.75rem;
}

.card-body {
    padding: 0.75rem;
}

/* 폼 스타일 */
.form-control,
.form-select {
    border-radius: 4px;
    border: 1px solid #ced4da;
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

.form-control:focus,
.form-select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.1rem rgba(0,123,255,0.25);
}

.form-label {
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: #495057;
}

.form-group, .mb-3 {
    margin-bottom: 0.5rem !important;
}

/* 네비게이션 바 */
.navbar {
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 0.25rem 0.5rem;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.2rem;
    padding: 0.25rem 0.5rem;
}

.nav-link {
    padding: 0.25rem 0.5rem !important;
    font-size: 0.85rem;
}

/* 레스폰시브 */
@media (max-width: 768px) {
    .calendar-container {
        padding: 5px;
    }
    
    .calendar-table {
        font-size: 0.75em;
    }
    
    .calendar-cell {
        min-height: 50px;
        padding: 2px;
    }
    
    .report-item {
        font-size: 0.7em;
        padding: 1px 2px;
    }
}

/* 로딩 애니메이션 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}