/* Smart Category Filter - Frontend Styles v2.1 */

:root {
    --scf-primary: #e31e4a;
    --scf-border: #e5e5e5;
    --scf-text: #333;
    --scf-muted: #888;
    --scf-bg: #fff;
    --scf-hover: #f7f7f7;
}

.scf-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    color: var(--scf-text);
    position: relative;
}

/* ============ Mobile trigger button ============ */
.scf-mobile-trigger {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    z-index: 99998;
    background: var(--scf-primary);
    color: #fff;
    border: none;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    cursor: pointer;
    align-items: center;
    gap: 8px;
    -webkit-tap-highlight-color: transparent;
}

.scf-mobile-trigger svg { flex-shrink: 0; }

.scf-mobile-trigger .scf-active-count {
    background: #fff;
    color: var(--scf-primary);
    border-radius: 10px;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
}

/* ============ Backdrop ============ */
.scf-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 99998;
    opacity: 0;
    -webkit-transition: opacity 0.3s ease;
    transition: opacity 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    pointer-events: none;
}

/* ============ Filter panel (desktop default) ============ */
.scf-panel {
    background: var(--scf-bg);
    /* border: 1px solid var(--scf-border); */
    border-radius: 8px;
    overflow: hidden;
}

.scf-panel-header {
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--scf-primary);
    color: #fff;
    flex-shrink: 0;
}

.scf-panel-header h3 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: #fff;
}

.scf-close {
    background: rgba(255,255,255,0.15);
    border: none;
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.scf-close:active { background: rgba(255,255,255,0.3); }

/* ============ Active filters bar ============ */
.scf-active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.scf-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.scf-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border: 1px solid var(--scf-primary);
    color: var(--scf-primary);
    padding: 5px 5px 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
}

.scf-chip-remove {
    background: var(--scf-primary);
    color: #fff;
    border: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}

.scf-chip-remove:hover {
    background: #c01840;
}

.scf-reset {
    background: var(--scf-primary);
    color: #fff;
    border: none;
    padding: 9px 18px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

/* ============ Filter groups ============ */
.scf-filter-group {
    border: 1px solid var(--scf-border);
    background: #fff;
    margin-bottom: 15px;
}

.scf-filter-group:last-child { border-bottom: none; }

.scf-filter-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 18px;
    background: var(--scf-primary);
    color: #fff;
    border: none;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    text-align: left;
    -webkit-tap-highlight-color: transparent;
}

.scf-filter-title .scf-arrow {
    -webkit-transition: -webkit-transform 0.2s ease;
    transition: transform 0.2s ease;
}

.scf-filter-group.is-collapsed .scf-filter-title .scf-arrow {
    -webkit-transform: rotate(-90deg);
    transform: rotate(-90deg);
}

.scf-filter-group.is-collapsed .scf-filter-options { display: none; }

.scf-filter-options {
    padding: 8px 0;
    max-height: 320px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: #fff;
}

.scf-filter-options::-webkit-scrollbar { width: 6px; }
.scf-filter-options::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

/* ============ Options / checkboxes ============ */
.scf-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    cursor: pointer;
    font-size: 14px;
    background: #fff;
    -webkit-tap-highlight-color: transparent;
    position: relative;
}

.scf-option:active { background: var(--scf-hover); }

@media (hover: hover) {
    .scf-option:hover { background: var(--scf-hover); }
}

.scf-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

.scf-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid #ccc;
    border-radius: 3px;
    flex-shrink: 0;
    position: relative;
    -webkit-transition: all 0.15s ease;
    transition: all 0.15s ease;
    background: #fff;
    display: inline-block;
}

.scf-option.is-checked .scf-checkbox,
.scf-option input:checked + .scf-checkbox {
    background: var(--scf-primary);
    border-color: var(--scf-primary);
}

.scf-option.is-checked .scf-checkbox::after,
.scf-option input:checked + .scf-checkbox::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 11px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
}

.scf-label { flex: 1; color: var(--scf-text); word-break: break-word; }

.scf-option.is-checked .scf-label {
    font-weight: 600;
    color: var(--scf-primary);
}

.scf-count {
    color: var(--scf-muted);
    font-size: 12px;
    flex-shrink: 0;
}

/* ============ Footer ============ */
.scf-panel-footer {
    display: none;
    padding: 14px 18px;
    border-top: 1px solid var(--scf-border);
    background: #fff;
    flex-shrink: 0;
}

.scf-apply {
    width: 100%;
    background: var(--scf-primary);
    color: #fff;
    border: none;
    padding: 15px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    -webkit-tap-highlight-color: transparent;
}

/* ============ Loading state ============ */
.scf-loading {
    opacity: 0.5;
    pointer-events: none;
    position: relative;
}

.scf-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.7) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><circle cx="20" cy="20" r="15" fill="none" stroke="%23e31e4a" stroke-width="4" stroke-linecap="round" stroke-dasharray="60" stroke-dashoffset="20"><animateTransform attributeName="transform" type="rotate" from="0 20 20" to="360 20 20" dur="1s" repeatCount="indefinite"/></circle></svg>') no-repeat center;
    z-index: 10;
}

/* ============ MOBILE RESPONSIVE (FIXED) ============ */
@media (max-width: 782px) {

    .scf-mobile-trigger { display: flex; }

    /* Backdrop always rendered, controlled via opacity + visibility */
    .scf-backdrop {
        display: block;
        visibility: hidden;
        opacity: 0;
    }

    /* The panel is a fixed sliding drawer using transform (GPU accelerated) */
    .scf-panel {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 88%;
        max-width: 380px;
        height: 100vh;
        height: 100dvh;
        z-index: 99999;
        border-radius: 0;
        border: none;
        display: flex;
        flex-direction: column;
        overflow: hidden;
        background: #fff;
        box-shadow: -4px 0 20px rgba(0,0,0,0.15);

        /* Off-screen by default using transform — no layout shift */
        -webkit-transform: translate3d(100%, 0, 0);
        transform: translate3d(100%, 0, 0);
        -webkit-transition: -webkit-transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
        transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
        will-change: transform;
        visibility: visible;
    }

    .scf-wrapper.is-open .scf-backdrop {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
    }

    .scf-wrapper.is-open .scf-panel {
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }

    .scf-panel-header { display: flex; }

    /* Body is the scrollable area between header and footer */
    .scf-panel-body {
        flex: 1 1 auto;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        background: #fff;
        min-height: 0; /* critical for flex child overflow */
        overscroll-behavior: contain;
    }

    .scf-panel-body .scf-form {
        display: flex;
        flex-direction: column;
    }

    .scf-panel-footer { display: block; }

    .scf-filter-options {
        max-height: none;
        overflow: visible;
    }

    /* Better body scroll lock */
    body.scf-body-locked {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }

    /* Bigger tap targets on mobile */
    .scf-option {
        padding: 14px 18px;
        min-height: 48px;
    }

    .scf-filter-title {
        padding: 16px 18px;
        min-height: 52px;
    }
}

/* Pagination */
.scf-pagination {
    margin-top: 30px;
    text-align: center;
}

.scf-pagination ul {
    list-style: none;
    padding: 0;
    display: inline-flex;
    gap: 6px;
}

.scf-pagination li a,
.scf-pagination li span {
    display: block;
    padding: 8px 14px;
    border: 1px solid var(--scf-border);
    border-radius: 4px;
    text-decoration: none;
    color: var(--scf-text);
}

.scf-pagination li span.current {
    background: var(--scf-primary);
    color: #fff;
    border-color: var(--scf-primary);
}