/* Filter modal — browse index / terrain */

#filterModal.modal {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    margin: 0;
    padding: var(--space-md);
    box-sizing: border-box;
}

#filterModal.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

#filterModal .modal-content {
    width: min(94vw, 720px);
    max-width: 720px;
    height: auto;
    max-height: min(92vh, 820px);
    margin: 0;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    #filterModal.modal.show {
        align-items: center;
        justify-content: center;
        padding: var(--space-sm);
    }

    #filterModal .modal-content {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        width: min(100%, 720px);
        height: auto;
        max-height: min(92dvh, 820px);
        border-radius: var(--radius-xl);
    }
}

#filterModal .modal-header {
    align-items: flex-start;
    gap: var(--space-md);
}

#filterModal .modal-header > div:first-child {
    flex: 1;
    min-width: 0;
}

.filter-modal-subtitle {
    margin: 6px 0 0;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 400;
    line-height: 1.45;
}

#filterModal .modal-body {
    padding: var(--space-lg) var(--space-xl);
    overflow-y: auto;
}

#filterModal .filters-form {
    gap: 0;
}

.filter-modal-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.filter-modal-search .search-input {
    padding: 14px 52px 14px 16px;
    font-size: var(--text-base);
    min-height: 48px;
}

.filter-modal-search .btn-search {
    right: 6px;
    width: 38px;
    height: 38px;
    padding: 0;
}

.filter-modal-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.filter-modal-section + .filter-modal-section {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.filter-modal-section-title {
    margin: 0;
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
}

.filter-modal-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

@media (min-width: 560px) {
    .filter-modal-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

#filterModal .filter-select {
    width: 100%;
    min-height: 44px;
    padding: 10px 36px 10px 14px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' stroke='%23b8b4ac' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.filter-modal-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

@media (min-width: 560px) {
    .filter-modal-options {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.filter-chip-field {
    gap: var(--space-sm);
}

.filter-group-label {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-chip {
    position: relative;
    display: inline-flex;
    cursor: pointer;
}

.filter-chip input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.filter-chip span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0 14px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-full);
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
    white-space: nowrap;
}

.filter-chip:hover span {
    border-color: var(--color-border-accent);
    color: var(--color-text-primary);
}

.filter-chip:has(input:checked) span,
.filter-chip input:focus-visible + span {
    background: var(--color-accent-muted);
    border-color: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: var(--focus-ring);
}

#filterModal .modal-footer.filter-modal-footer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
}

#filterModal .modal-footer.filter-modal-footer .btn {
    width: auto;
    min-height: 44px;
    margin: 0;
    justify-content: center;
}

#filterModal .modal-footer.filter-modal-footer .btn-primary {
    width: auto;
}

@media (max-width: 480px) {
    #filterModal .modal-body,
    #filterModal .modal-footer.filter-modal-footer {
        padding-left: var(--space-lg);
        padding-right: var(--space-lg);
    }

    .filter-modal-options {
        grid-template-columns: 1fr;
    }
}