:root{--osf-ink:#222220;--osf-muted:#74716d;--osf-line:#e7e5e1;--osf-soft:#f8f7f5;--osf-accent:#256f5a;--osf-accent-soft:#e9f3ef}.osf-shell{direction:rtl;background:#fff;border:1px solid var(--osf-line);border-radius:14px;margin:0 0 28px;color:var(--osf-ink);overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.025)}.osf-shell>summary{display:flex;align-items:center;gap:12px;min-height:68px;padding:12px 18px;cursor:pointer;list-style:none;user-select:none}.osf-shell>summary::-webkit-details-marker{display:none}.osf-summary-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--osf-accent-soft);color:var(--osf-accent);font-size:24px}.osf-shell summary strong,.osf-shell summary small{display:block}.osf-shell summary strong{font-size:16px;font-weight:750}.osf-shell summary small{font-size:13px;color:var(--osf-muted);margin-top:2px}.osf-chevron{margin-right:auto;font-size:22px;color:var(--osf-muted);transition:transform .2s ease}.osf-shell[open] .osf-chevron{transform:rotate(180deg)}.osf-form{border-top:1px solid var(--osf-line);padding:20px}.osf-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.osf-group{min-width:0;margin:0;padding:0;border:0}.osf-group legend{width:100%;padding:0 0 9px;font-size:14px;font-weight:750}.osf-options{max-height:188px;overflow:auto;border:1px solid var(--osf-line);border-radius:10px;padding:5px;background:#fff;scrollbar-width:thin}.osf-options label{display:flex;align-items:center;gap:8px;min-height:42px;padding:7px 8px;border-radius:7px;cursor:pointer;transition:background .15s ease}.osf-options label:hover{background:var(--osf-soft)}.osf-options input{position:absolute;opacity:0;pointer-events:none}.osf-check{position:relative;flex:0 0 18px;width:18px;height:18px;border:1.5px solid #bbb8b2;border-radius:5px;background:#fff}.osf-options input:focus-visible+.osf-check{outline:3px solid rgba(37,111,90,.2);outline-offset:2px}.osf-options input:checked+.osf-check{background:var(--osf-accent);border-color:var(--osf-accent)}.osf-options input:checked+.osf-check:after{content:"";position:absolute;right:5px;top:2px;width:5px;height:9px;border:solid #fff;border-width:0 0 2px 2px;transform:rotate(-45deg)}.osf-value{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.osf-options label small{margin-right:auto;color:var(--osf-muted);font-size:12px;background:var(--osf-soft);border-radius:999px;min-width:24px;padding:2px 7px;text-align:center}.osf-actions{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--osf-line)}.osf-actions button{min-height:44px;border:0;border-radius:9px;background:var(--osf-accent);color:#fff;padding:0 22px;font:inherit;font-weight:750;cursor:pointer}.osf-actions button:hover{filter:brightness(.94)}.osf-actions a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;color:var(--osf-muted);text-decoration:none}.osf-category-switch{direction:rtl;display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 24px;padding:12px;background:var(--osf-soft);border:1px solid var(--osf-line);border-radius:12px}.osf-category-switch__label{font-size:13px;color:var(--osf-muted);padding:0 6px}.osf-category-switch a{display:inline-flex;align-items:center;gap:12px;min-height:44px;padding:0 14px;border:1px solid var(--osf-line);border-radius:9px;background:#fff;color:var(--osf-ink);text-decoration:none;font-size:14px;font-weight:650}.osf-category-switch a span{color:var(--osf-accent)}@media(max-width:1024px){.osf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:700px){.osf-shell{border-radius:12px;margin-bottom:20px}.osf-shell>summary{min-height:62px;padding:10px 14px}.osf-form{padding:14px}.osf-grid{grid-template-columns:1fr;gap:14px}.osf-options{max-height:170px}.osf-actions{position:sticky;bottom:0;background:#fff;padding:12px 0 0;z-index:2}.osf-actions button{flex:1}.osf-category-switch{align-items:stretch}.osf-category-switch__label{width:100%}.osf-category-switch a{flex:1;justify-content:space-between}}.osf-shell.osf-in-sidebar{margin:0 0 22px;border-radius:12px}.osf-shell.osf-in-sidebar .osf-grid{grid-template-columns:1fr}.osf-shell.osf-in-sidebar .osf-form{padding:14px}.osf-shell.osf-in-sidebar .osf-options{max-height:220px}.osf-shell.osf-in-sidebar .osf-actions{align-items:stretch;flex-direction:column}.osf-shell.osf-in-sidebar .osf-actions button,.osf-shell.osf-in-sidebar .osf-actions a{width:100%;justify-content:center}.osf-footer-source{display:contents}.osf-drawer{direction:rtl;position:fixed;z-index:1000001;top:0;right:0;width:min(400px,92vw);height:100dvh;background:#fff;transform:translateX(105%);transition:transform .25s ease;box-shadow:-12px 0 40px rgba(0,0,0,.14);display:flex;flex-direction:column}.osf-drawer.is-open{transform:translateX(0)}.osf-drawer__head{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:10px 18px;border-bottom:1px solid var(--osf-line)}.osf-drawer__head strong{font-size:17px}.osf-drawer__close{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:9px;background:var(--osf-soft);color:var(--osf-ink);font-size:28px;line-height:1;cursor:pointer}.osf-drawer__body{flex:1;overflow:auto;padding:14px 14px 88px}.osf-drawer__body .osf-shell{margin:0;border:0;box-shadow:none}.osf-drawer__body .osf-shell>summary{display:none}.osf-drawer__body .osf-form{border-top:0}.osf-drawer-backdrop{position:fixed;z-index:1000000;inset:0;background:rgba(22,22,20,.42);opacity:0;visibility:hidden;transition:opacity .25s ease}.osf-drawer-backdrop.is-open{opacity:1;visibility:visible}.osf-drawer-open{overflow:hidden!important}.osf-price-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px}.osf-price-fields label{display:block;font-size:12px;color:var(--osf-muted)}.osf-price-fields input{width:100%;min-height:42px;margin-top:5px;border:1px solid var(--osf-line);border-radius:8px;padding:0 9px;font:inherit}.osf-radios input:checked+.osf-check{border-radius:50%;box-shadow:inset 0 0 0 4px #fff}.osf-drawer .osf-actions{position:absolute;right:0;bottom:0;left:0;z-index:8;margin:0;padding:12px 14px;background:#fff;box-shadow:0 -8px 20px rgba(0,0,0,.06);flex-direction:row}.osf-drawer .osf-actions button{flex:1}.osf-drawer .osf-actions a{justify-content:center}.osf-is-loading{position:relative;min-height:240px;opacity:.45;pointer-events:none}.osf-is-loading:after{content:"";position:absolute;z-index:20;top:80px;left:50%;width:34px;height:34px;margin-left:-17px;border:3px solid #ddd;border-top-color:var(--osf-accent);border-radius:50%;animation:osf-spin .7s linear infinite}@keyframes osf-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.osf-chevron,.osf-options label,.osf-drawer,.osf-drawer-backdrop{transition:none}}
/* 0.6.1 UI hotfix: no flash, stable AJAX layout, safe fixed actions */
.osf-shell[data-osf-placement="sidebar"]:not(.osf-in-sidebar){display:none!important}
.osf-drawer{z-index:2147483000;overflow:hidden}
.osf-drawer-backdrop{z-index:2147482999}
.osf-drawer,.osf-drawer *{box-sizing:border-box}
.osf-drawer__body{overflow-x:hidden;padding:14px 14px 150px;scroll-padding-bottom:150px}
.osf-drawer .osf-shell.osf-in-sidebar{display:block!important;width:100%;max-width:100%;overflow:visible}
.osf-drawer .osf-form{width:100%;min-width:0;padding:8px 0 24px}
.osf-drawer .osf-grid{display:grid!important;grid-template-columns:minmax(0,1fr)!important;gap:18px;width:100%;min-width:0;padding-bottom:20px}
.osf-drawer .osf-group,.osf-drawer .osf-options,.osf-drawer .osf-price-fields{width:100%;min-width:0;max-width:100%}
.osf-drawer .osf-options{overflow-x:hidden;overscroll-behavior:contain}
.osf-drawer .osf-options label{width:100%;min-width:0}
.osf-drawer .osf-actions{position:absolute!important;right:0!important;bottom:0!important;left:0!important;display:grid!important;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;min-height:76px;margin:0!important;padding:12px 14px max(12px,env(safe-area-inset-bottom))!important;background:rgba(255,255,255,.98)!important;border-top:1px solid var(--osf-line);box-shadow:0 -10px 24px rgba(0,0,0,.08)}
.osf-drawer .osf-actions button[type="submit"]{display:flex!important;align-items:center;justify-content:center;width:100%!important;min-height:48px!important;margin:0!important;border:0!important;border-radius:10px!important;background:var(--osf-accent)!important;color:#fff!important;font:inherit!important;font-weight:750!important;box-shadow:none!important}
.osf-drawer .osf-actions .osf-clear{display:flex!important;align-items:center;justify-content:center;width:auto!important;min-width:88px;min-height:48px;padding:0 12px!important;border-radius:9px;color:var(--osf-muted)!important;background:var(--osf-soft)!important;text-decoration:none!important}
.osf-drawer__close{appearance:none!important;color:var(--osf-ink)!important;background:var(--osf-soft)!important;border:0!important}
@media(max-width:480px){.osf-drawer{width:min(410px,96vw)}.osf-drawer__body{padding-bottom:156px}.osf-drawer .osf-actions{grid-template-columns:minmax(0,1fr) 92px}}

/* 0.6.2 structural drawer: independent scroll body + non-shifting footer */
.osf-drawer{display:grid!important;grid-template-rows:auto minmax(0,1fr) auto;height:100vh;height:100dvh;overflow:hidden;contain:layout paint}
.osf-drawer__head{grid-row:1;position:relative;z-index:3;background:#fff}
.osf-drawer__body{grid-row:2;min-height:0!important;max-height:none!important;overflow-y:auto!important;overflow-x:hidden!important;padding:14px!important;scroll-padding:24px;scrollbar-gutter:stable;overscroll-behavior:contain;background:#fff;transition:opacity .15s ease}
.osf-drawer__body:empty:before{content:"در حال آماده‌سازی فیلترها…";display:block;padding:28px 12px;text-align:center;color:var(--osf-muted)}
.osf-drawer__body .osf-shell.osf-in-sidebar{min-height:100%;margin:0!important}
.osf-drawer__body .osf-form{padding:4px 0 32px!important}
.osf-drawer__body .osf-grid{padding:0 0 28px!important;align-content:start}
.osf-drawer__footer{grid-row:3;position:relative;z-index:4;display:block;min-height:76px;padding:12px 14px max(12px,env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--osf-line);box-shadow:0 -10px 24px rgba(0,0,0,.07)}
.osf-drawer__footer:empty{display:none}
.osf-drawer__footer .osf-actions{position:static!important;inset:auto!important;display:grid!important;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;width:100%;min-height:0;margin:0!important;padding:0!important;border:0!important;background:transparent!important;box-shadow:none!important;transform:none!important}
.osf-drawer__footer .osf-actions button[type="submit"]{position:static!important;transform:none!important;min-height:48px!important;margin:0!important}
.osf-drawer__footer .osf-actions .osf-clear{position:static!important;transform:none!important;min-height:48px}
.osf-drawer.osf-filter-loading .osf-drawer__body{opacity:.68;pointer-events:none}
.osf-drawer.osf-filter-loading .osf-drawer__footer{pointer-events:none}
.osf-drawer.osf-filter-loading .osf-drawer__footer button{cursor:wait!important;opacity:.88}
.osf-drawer .osf-options input{position:absolute!important;right:auto!important;bottom:auto!important;width:1px!important;height:1px!important;margin:0!important;opacity:0!important;pointer-events:none!important}
.osf-drawer .osf-check{transform:none!important;transition:background-color .12s ease,border-color .12s ease,box-shadow .12s ease}
.osf-drawer .osf-group{contain:layout style}
.osf-drawer .osf-options{max-height:230px;overflow-y:auto!important}
.osf-drawer .osf-options label{position:relative;transform:none!important}
.osf-drawer .osf-options label:has(input:checked){background:var(--osf-accent-soft)}
@media(max-width:480px){.osf-drawer__body{padding:12px!important}.osf-drawer__footer{min-height:74px;padding:10px 12px max(10px,env(safe-area-inset-bottom))}.osf-drawer__footer .osf-actions{grid-template-columns:minmax(0,1fr) 92px}}