/* version 1001 — period filter, compare dropdown, granularity toggle */
.period-filter {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}
.period-btn {
    padding: 0.5rem 1rem;
    border: 1px solid #dee2e6;
    border-radius: 20px;
    background: #fff;
    color: #495057;
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}
.period-btn:hover {
    border-color: #28a745;
    color: #28a745;
}
.period-btn.active {
    background: #28a745;
    border-color: #28a745;
    color: #fff;
}
.period-btn .fa { margin-right: 0.25rem; }

.compare-wrapper {
    position: relative;
    display: inline-block;
    margin-left: 0.25rem;
}
.compare-btn {
    padding: 0.5rem 1rem;
    border: 1px dashed #6c757d;
    border-radius: 20px;
    background: #fff;
    color: #6c757d;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}
.compare-btn:hover {
    border-color: #007bff;
    color: #007bff;
}
.compare-btn.active {
    border-style: solid;
    border-color: #007bff;
    color: #007bff;
    background: #e7f1ff;
}
.compare-btn .compare-clear {
    margin-left: 0.4rem;
    font-weight: bold;
    opacity: 0.6;
}
.compare-btn .compare-clear:hover {
    opacity: 1;
}
.compare-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    min-width: 200px;
    padding: 0.25rem 0;
    margin: 0.25rem 0 0;
    background: #fff;
    border: 1px solid rgba(0,0,0,.15);
    border-radius: 0.25rem;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,.175);
}
.compare-dropdown.show { display: block; }
.compare-dropdown-item {
    display: block;
    width: 100%;
    padding: 0.35rem 1rem;
    border: none;
    background: none;
    text-align: left;
    font-size: 0.9rem;
    color: #212529;
    cursor: pointer;
    white-space: nowrap;
}
.compare-dropdown-item:hover {
    background: #f8f9fa;
    color: #007bff;
}
.granularity-filter {
    display: flex;
    align-items: center;
}
.granularity-btn {
    border: 1px solid #ccc;
    background: #fff;
    border-radius: 15px;
    padding: 2px 10px;
    font-size: 0.8rem;
    cursor: pointer;
    margin-right: 4px;
    transition: all 0.2s;
}
.granularity-btn:hover {
    border-color: #6c757d;
}
.granularity-btn.active {
    background: #6c757d;
    color: #fff;
    border-color: #6c757d;
}
.compare-custom-mode {
    padding: 6px 12px;
    border-bottom: 1px solid #eee;
    text-align: center;
    font-size: 12px;
}
.compare-custom-mode label {
    margin-left: 0.5rem;
    cursor: pointer;
}
@media (max-width: 576px) {
    .period-btn, .compare-btn, .granularity-btn {
        min-height: 44px;
        padding: 0.4rem 0.75rem;
        font-size: 0.85rem;
    }
}