/* ============================================================
   SSF – Serigest Shop Filters
   ============================================================ */

:root {
    --ssf-font: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
    --ssf-radius: 10px;
    --ssf-border: #ebebeb;
    --ssf-ink: #111;
    --ssf-muted: #888;
    --ssf-bg: #fff;
    --ssf-hover: #f7f7f7;
}

/* ── Toolbar (filter btn + ordering) ─────────────────────── */

.ssf-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 24px;
}

.ssf-toolbar .woocommerce-ordering {
    margin: 0 !important;
    flex-shrink: 0;
}

/* ── Toggle button ────────────────────────────────────────── */

.ssf-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    padding: 0 15px;
    background: var(--ssf-bg);
    border: 1px solid var(--ssf-border);
    border-radius: var(--ssf-radius);
    color: var(--ssf-ink);
    font: 500 13px/1 var(--ssf-font);
    cursor: pointer;
    white-space: nowrap;
    transition: border-color .15s, background .15s;
    position: relative;
    user-select: none;
    letter-spacing: -.01em;
}

.ssf-btn:hover {
    border-color: #ccc;
    background: var(--ssf-hover);
}

.ssf-btn--active,
.ssf-btn[aria-expanded="true"] {
    border-color: var(--ssf-ink);
    background: var(--ssf-ink);
    color: #fff;
}

.ssf-btn--active svg,
.ssf-btn[aria-expanded="true"] svg {
    stroke: #fff;
}

.ssf-btn__chevron {
    margin-left: 1px;
    transition: transform .22s cubic-bezier(.4,0,.2,1);
    opacity: .5;
}

.ssf-btn[aria-expanded="true"] .ssf-btn__chevron {
    transform: rotate(180deg);
    opacity: .8;
}

.ssf-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: #fff;
    color: var(--ssf-ink);
    font-size: 10px;
    font-weight: 700;
    border-radius: 20px;
    line-height: 1;
}

.ssf-btn[aria-expanded="true"] .ssf-badge {
    background: rgba(255,255,255,.2);
    color: #fff;
}

/* ── Wrapper + panel ──────────────────────────────────────── */

.ssf-wrap {
    position: relative;
}

/* ── Panel: fixed dall'alto (desktop + mobile) ────────────── */

.ssf-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99999;
    width: 100%;
    max-width: 100%;
    background: var(--ssf-bg);
    border: none;
    border-bottom: 1px solid var(--ssf-border);
    border-radius: 0;
    box-shadow: 0 8px 40px rgba(0,0,0,.13);
    overflow: hidden;
    display: flex;
    flex-direction: column;

    /* Chiuso: sale fuori dallo schermo */
    opacity: 1;
    transform: translateY(-100%);
    pointer-events: none;
    transition: transform .3s cubic-bezier(.4,0,.2,1), visibility 0s linear .3s;
    visibility: hidden;
}

.ssf-panel:not([hidden]) {
    transform: translateY(0);
    pointer-events: auto;
    visibility: visible;
    transition: transform .3s cubic-bezier(.4,0,.2,1), visibility 0s linear 0s;
}

.ssf-panel[hidden] {
    display: flex !important;
}

/* ── Backdrop ─────────────────────────────────────────────── */

.ssf-backdrop {
    position: fixed;
    inset: 0;
    z-index: 99998;
    background: rgba(0,0,0,.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}

.ssf-backdrop.is-visible {
    opacity: 1;
    pointer-events: auto;
}

/* ── Panel interno: max-width centrato su desktop ─────────── */

.ssf-panel__head,
.ssf-panel__foot {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    box-sizing: border-box;
}

.ssf-panel__body {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    box-sizing: border-box;
}

/* ── Panel header ─────────────────────────────────────────── */

.ssf-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px 16px;
    border-bottom: 1px solid var(--ssf-border);
}

.ssf-panel__head-title {
    font: 600 14px/1 var(--ssf-font);
    color: var(--ssf-ink);
    letter-spacing: -.02em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.ssf-panel__head-count {
    font-size: 11px;
    font-weight: 500;
    color: var(--ssf-muted);
    letter-spacing: 0;
}

.ssf-panel__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--ssf-muted);
    transition: background .12s, color .12s;
    padding: 0;
}

.ssf-panel__close:hover {
    background: var(--ssf-hover);
    color: var(--ssf-ink);
}

/* ── Panel body (attribute groups) ───────────────────────── */

.ssf-panel__body {
    padding: 8px 0;
    max-height: 420px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #e0e0e0 transparent;
}

.ssf-panel__body::-webkit-scrollbar { width: 4px; }
.ssf-panel__body::-webkit-scrollbar-track { background: transparent; }
.ssf-panel__body::-webkit-scrollbar-thumb { background: #e0e0e0; border-radius: 4px; }

/* ── Group ────────────────────────────────────────────────── */

.ssf-group {
    padding: 16px 24px;
    border-bottom: 1px solid #f4f4f4;
}

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

.ssf-group__title {
    font: 600 10px/1 var(--ssf-font);
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #bbb;
    margin: 0 0 12px;
}

.ssf-group__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

/* ── Pill term ────────────────────────────────────────────── */

.ssf-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: 32px;
    padding: 0 14px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 6px;
    font: 450 12.5px/1 var(--ssf-font);
    color: #444;
    text-decoration: none;
    white-space: nowrap;
    transition: border-color .13s, background .13s, color .13s;
    letter-spacing: -.005em;
}

.ssf-pill:hover {
    border-color: #aaa;
    color: var(--ssf-ink);
}

.ssf-pill.is-active {
    background: var(--ssf-ink);
    border-color: var(--ssf-ink);
    color: #fff;
}

.ssf-pill.is-active:hover {
    background: #333;
    border-color: #333;
}

.ssf-pill__x {
    font-size: 15px;
    line-height: 1;
    opacity: .65;
    margin-left: 1px;
}

/* ── Panel footer ─────────────────────────────────────────── */

.ssf-panel__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-top: 1px solid var(--ssf-border);
    background: #fafafa;
}

.ssf-reset {
    font: 500 12px/1 var(--ssf-font);
    color: #555;
    text-decoration: none;
    letter-spacing: -.01em;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color .15s;
}

.ssf-reset::before {
    content: '↺';
    font-size: 13px;
}

.ssf-reset:hover {
    color: #e53935;
}

.ssf-no-active {
    font: 400 12px/1 var(--ssf-font);
    color: #ccc;
}

.ssf-foot-count {
    font: 400 11px/1 var(--ssf-font);
    color: #ccc;
    letter-spacing: -.01em;
}

/* ── Active chips row ─────────────────────────────────────── */

.ssf-active-chips {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.ssf-active-chips__label {
    font: 500 12px/1 var(--ssf-font);
    color: #999;
    white-space: nowrap;
    letter-spacing: -.01em;
    margin-right: 2px;
}

.ssf-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 32px;
    padding: 0 12px 0 14px;
    background: var(--ssf-ink);
    color: #fff;
    border: 1.5px solid var(--ssf-ink);
    border-radius: 8px;
    font: 500 12.5px/1 var(--ssf-font);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -.01em;
    transition: background .15s, border-color .15s;
}

.ssf-chip:hover {
    background: #fff;
    color: var(--ssf-ink);
    border-color: var(--ssf-ink);
}

.ssf-chip:hover .ssf-chip__remove {
    color: var(--ssf-ink);
}

.ssf-chip__remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: rgba(255,255,255,.18);
    border-radius: 4px;
    color: #fff;
    flex-shrink: 0;
    transition: background .15s, color .15s;
}

.ssf-chip:hover .ssf-chip__remove {
    background: rgba(0,0,0,.08);
}

/* ── Responsive ───────────────────────────────────────────── */

/* Desktop: altezza massima con scroll interno */
@media (min-width: 769px) {
    .ssf-panel {
        max-height: 80vh;
    }

    .ssf-panel__body {
        max-height: calc(80vh - 120px);
        overflow-y: auto;
    }
}

/* Mobile: fullscreen */
@media (max-width: 768px) {
    .ssf-panel {
        height: 100dvh;
    }

    .ssf-panel__head,
    .ssf-panel__foot {
        padding-left: 20px;
        padding-right: 20px;
    }

    .ssf-panel__body {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0;
        max-height: none;
    }

    .ssf-panel__foot {
        padding-bottom: max(16px, env(safe-area-inset-bottom));
    }

    .ssf-group {
        padding: 16px 20px;
    }

    .ssf-pill {
        height: 36px;
        padding: 0 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .ssf-btn span:not(.ssf-badge) { display: none; }

    .ssf-toolbar .woocommerce-ordering select {
        min-width: 130px !important;
    }
}