.ccf-panel,
.ccf-panel * {
    box-sizing: border-box;
}

.ccf-panel {
    width: 100%;
    max-width: var(--ccf-panel-max-width);
    margin: 0;
    padding: var(--ccf-panel-padding);
    color: var(--ccf-text);
    background: var(--ccf-panel-bg);
    border: var(--ccf-panel-border-width) solid var(--ccf-panel-border);
    border-radius: var(--ccf-panel-radius);
    box-shadow: var(--ccf-panel-shadow);
}

.ccf-panel.ccf-shadow-none { box-shadow: none; }
.ccf-panel .ccf-title {
    margin: 0 0 var(--ccf-group-gap);
    color: var(--ccf-heading);
    font-family: var(--ccf-font);
    font-size: var(--ccf-title-size);
    font-weight: var(--ccf-title-weight);
    line-height: 1.25;
}

.ccf-panel .ccf-group {
    margin: 0 0 var(--ccf-group-gap);
}

.ccf-panel .ccf-group > label,
.ccf-panel .ccf-group-heading {
    display: block;
    margin: 0 0 8px;
    color: var(--ccf-heading);
    font-family: var(--ccf-font);
    font-size: var(--ccf-label-size);
    font-weight: var(--ccf-label-weight);
    line-height: 1.35;
}

.ccf-panel select,
.ccf-panel input[type="number"] {
    width: 100%;
    height: var(--ccf-field-height);
    min-height: var(--ccf-field-height);
    padding: 0 var(--ccf-field-padding);
    color: var(--ccf-field-text);
    background: var(--ccf-field-bg);
    border: 1px solid var(--ccf-field-border);
    border-radius: var(--ccf-field-radius);
    outline: none;
    font-family: var(--ccf-font);
    font-size: var(--ccf-field-size);
    line-height: normal;
    box-shadow: none;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.ccf-panel select:focus,
.ccf-panel input[type="number"]:focus {
    border-color: var(--ccf-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ccf-accent) 15%, transparent);
}

.ccf-panel.ccf-select-filled select {
    background-color: var(--ccf-field-bg);
}

.ccf-panel.ccf-select-outline select {
    background-color: transparent;
    border-width: 2px;
}

.ccf-panel.ccf-select-underline select {
    padding-left: 0;
    padding-right: 22px;
    background-color: transparent;
    border-width: 0 0 2px;
    border-radius: 0;
}

.ccf-price-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: end;
    gap: 8px;
}

.ccf-price-row label {
    display: block;
    min-width: 0;
}

.ccf-price-row label span {
    display: block;
    margin-bottom: 5px;
    color: var(--ccf-text);
    font-size: calc(var(--ccf-label-size) - 1px);
}

.ccf-separator {
    padding-bottom: calc((var(--ccf-field-height) - 1em) / 2);
    color: var(--ccf-text);
}

.ccf-brands {
    display: grid;
    gap: 8px;
}

.ccf-brands label {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0;
    color: var(--ccf-text);
    font-family: var(--ccf-font);
    font-size: var(--ccf-field-size);
    cursor: pointer;
}

.ccf-brands input[type="checkbox"] {
    width: var(--ccf-checkbox-size);
    height: var(--ccf-checkbox-size);
    min-width: var(--ccf-checkbox-size);
    accent-color: var(--ccf-accent);
    margin: 0;
}

.ccf-actions {
    display: flex;
    gap: var(--ccf-button-gap);
    margin-top: 4px;
}

.ccf-actions > button,
.ccf-actions > .ccf-clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    padding: var(--ccf-button-py) var(--ccf-button-px);
    border: 1px solid;
    border-radius: var(--ccf-button-radius);
    font-family: var(--ccf-font);
    font-size: var(--ccf-button-size);
    font-weight: var(--ccf-button-weight);
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}

.ccf-actions > button {
    color: var(--ccf-apply-text);
    background: var(--ccf-apply-bg);
    border-color: var(--ccf-apply-border);
}

.ccf-actions > button:hover {
    color: var(--ccf-apply-hover-text);
    background: var(--ccf-apply-hover-bg);
    border-color: var(--ccf-apply-hover-bg);
}

.ccf-actions > .ccf-clear {
    color: var(--ccf-clear-text);
    background: var(--ccf-clear-bg);
    border-color: var(--ccf-clear-border);
}

.ccf-actions > .ccf-clear:hover {
    color: var(--ccf-clear-hover-text);
    background: var(--ccf-clear-hover-bg);
    border-color: var(--ccf-clear-hover-bg);
}

.ccf-actions > button:active,
.ccf-actions > .ccf-clear:active {
    transform: translateY(1px);
}

@media (max-width: 480px) {
    .ccf-price-row {
        grid-template-columns: 1fr;
    }

    .ccf-separator {
        display: none;
    }

    .ccf-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .ccf-actions > * {
        width: 100%;
    }
}


.ccf-mobile-toggle,
.ccf-mobile-header,
.ccf-mobile-overlay {
    display: none;
}

@media (max-width: 767px) {
    .ccf-mobile-filter {
        width: 100%;
    }

    .ccf-mobile-toggle {
        width: 100%;
        min-height: 46px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        padding: 12px 16px;
        color: var(--ccf-mobile-btn-text);
        background: var(--ccf-mobile-btn-bg);
        border: 0;
        border-radius: var(--ccf-button-radius);
        font-family: var(--ccf-font);
        font-size: var(--ccf-button-size);
        font-weight: var(--ccf-button-weight);
        cursor: pointer;
    }

    .ccf-mobile-toggle-icon {
        font-size: 18px;
        line-height: 1;
    }

    .ccf-mobile-mode-accordion .ccf-mobile-content {
        display: none;
        margin-top: 10px;
    }

    .ccf-mobile-mode-accordion.ccf-mobile-open .ccf-mobile-content {
        display: block;
    }

    .ccf-mobile-mode-drawer .ccf-mobile-content {
        position: fixed;
        top: 0;
        right: 0;
        z-index: 999999;
        width: min(90vw, 420px);
        height: 100dvh;
        padding: 0;
        background: var(--ccf-panel-bg);
        transform: translateX(105%);
        transition: transform .28s ease;
        overflow-y: auto;
        box-shadow: -10px 0 35px rgba(0,0,0,.18);
    }

    .ccf-mobile-mode-drawer.ccf-mobile-open .ccf-mobile-content {
        transform: translateX(0);
    }

    .ccf-mobile-mode-drawer .ccf-mobile-overlay {
        position: fixed;
        inset: 0;
        z-index: 999998;
        display: block;
        background: var(--ccf-mobile-overlay);
        opacity: 0;
        visibility: hidden;
        transition: opacity .25s ease, visibility .25s ease;
    }

    .ccf-mobile-mode-drawer.ccf-mobile-open .ccf-mobile-overlay {
        opacity: var(--ccf-mobile-overlay-opacity);
        visibility: visible;
    }

    .ccf-mobile-header {
        position: sticky;
        top: 0;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 58px;
        padding: 14px 18px;
        background: var(--ccf-panel-bg);
        border-bottom: 1px solid var(--ccf-panel-border);
    }

    .ccf-mobile-header strong {
        color: var(--ccf-heading);
        font-family: var(--ccf-font);
        font-size: 17px;
    }

    .ccf-mobile-close {
        width: 36px;
        height: 36px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0;
        color: var(--ccf-heading);
        background: transparent;
        border: 0;
        border-radius: 50%;
        font-size: 28px;
        line-height: 1;
        cursor: pointer;
    }

    .ccf-mobile-mode-accordion .ccf-mobile-header {
        display: none;
    }

    .ccf-mobile-content .ccf-panel {
        max-width: 100%;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }

    body.ccf-filter-drawer-open {
        overflow: hidden;
    }
}