/* ============================================================
   Pargar v3 — Header, Search, Mobile Drawer, Bottom Nav
   بارگذاری بعد از bm-main تا override کند
   ============================================================ */

/* ==== Header شیشه‌ای Sticky ==== */
.bm-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: color-mix(in oklab, var(--bm-surface) 78%, transparent);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid transparent;
    transition: background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.bm-header.is-scrolled {
    background: color-mix(in oklab, var(--bm-surface) 92%, transparent);
    border-bottom-color: var(--bm-border);
    box-shadow: 0 6px 24px -12px rgba(15, 23, 42, .12);
}
:root[data-theme="dark"] .bm-header.is-scrolled {
    box-shadow: 0 6px 24px -8px rgba(0, 0, 0, .5);
}

/* ==== Search Dropdown ==== */
.bm-search-wrap { position: relative; }
.bm-search-panel {
    position: absolute;
    top: calc(100% + 12px);
    inset-inline-end: 0;
    width: min(520px, 92vw);
    background: var(--bm-surface);
    border: 1px solid var(--bm-border);
    border-radius: var(--bm-radius-lg);
    box-shadow: var(--bm-shadow-xl);
    padding: 14px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
}
.bm-search-panel.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.bm-search-input {
    width: 100%;
    height: 46px;
    padding: 0 16px;
    border: 1.5px solid var(--bm-border-strong);
    border-radius: var(--bm-radius-sm);
    background: var(--bm-surface-2);
    color: var(--bm-text);
    font: inherit;
    outline: none;
    transition: border-color .18s, box-shadow .18s;
}
.bm-search-input:focus {
    border-color: var(--bm-primary);
    box-shadow: 0 0 0 4px var(--bm-ring);
    background: var(--bm-surface);
}
.bm-search-results {
    margin-top: 12px;
    max-height: 60vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.bm-search-results:empty { margin-top: 0; }

/* حالت موبایل: پنل جستجو تمام‌صفحه، مستقل از موقعیت هدر دسکتاپ.
   با کلاس is-mobile که از دکمه‌ی نوار پایین فعال می‌شود. */
.bm-search-panel.is-mobile {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    width: 100%;
    height: auto;
    max-height: 100vh;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid var(--bm-border);
    padding: 14px 16px calc(14px + env(safe-area-inset-top, 0px));
    padding-top: max(14px, env(safe-area-inset-top, 14px));
    transform: translateY(-12px);
    z-index: 4000;
}
.bm-search-panel.is-mobile.open {
    transform: translateY(0);
}
.bm-search-panel.is-mobile .bm-search-results {
    max-height: calc(100vh - 90px);
}
.bm-search-group-title {
    font-size: 11.5px;
    font-weight: 800;
    color: var(--bm-text-mute);
    padding: 8px 10px 4px;
    letter-spacing: .3px;
}
.bm-search-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: 12px;
    color: var(--bm-text);
    transition: background-color .15s;
}
.bm-search-item:hover, .bm-search-item:focus-visible {
    background: var(--bm-primary-soft);
    color: var(--bm-primary);
    outline: none;
}
.bm-search-item img,
.bm-search-item .bm-search-thumb {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    background: var(--bm-surface-2);
    flex: 0 0 44px;
    display: grid;
    place-items: center;
    color: var(--bm-text-mute);
}
.bm-search-item .bm-search-title {
    font-size: 13.5px;
    font-weight: 700;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.bm-search-item .bm-search-meta {
    font-size: 11px;
    color: var(--bm-text-mute);
    margin-top: 2px;
}
.bm-search-loading,
.bm-search-empty {
    text-align: center;
    padding: 22px 10px;
    color: var(--bm-text-mute);
    font-size: 13px;
}
.bm-search-loading::before {
    content: '';
    display: inline-block;
    width: 14px; height: 14px;
    margin-inline-end: 8px;
    vertical-align: -2px;
    border: 2px solid var(--bm-border-strong);
    border-top-color: var(--bm-primary);
    border-radius: 50%;
    animation: bmSpin .7s linear infinite;
}
@keyframes bmSpin { to { transform: rotate(360deg); } }

/* ==== Mobile Drawer بهبود یافته ==== */
.bm-mobile-menu {
    box-shadow: -12px 0 40px -12px rgba(0, 0, 0, .25);
    padding-top: 20px;
}
.bm-mobile-menu .bm-mobile-close {
    margin-bottom: 16px;
}
.bm-mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.bm-mobile-menu li a {
    display: block;
    padding: 14px 16px;
    border-radius: 12px;
    color: var(--bm-text);
    font-weight: 700;
    transition: background-color .15s, color .15s;
}
.bm-mobile-menu li a:hover,
.bm-mobile-menu li.current-menu-item > a {
    background: var(--bm-primary-soft);
    color: var(--bm-primary);
}

/* ==== Bottom Navigation (Mobile) ==== */
.bm-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 90;
    background: color-mix(in oklab, var(--bm-surface) 92%, transparent);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-top: 1px solid var(--bm-border);
    padding: 6px max(8px, env(safe-area-inset-left)) calc(6px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-right));
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
}
.bm-bn-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 8px 4px;
    color: var(--bm-text-sub);
    font-size: 10.5px;
    font-weight: 700;
    border-radius: 12px;
    transition: color .15s, background-color .15s;
    min-height: 52px;
}
.bm-bn-item svg { width: 22px; height: 22px; }
.bm-bn-item.is-active,
.bm-bn-item:hover {
    color: var(--bm-primary);
    background: var(--bm-primary-soft);
}
.bm-bn-item.is-cta {
    color: var(--bm-on-primary);
    background: var(--bm-primary);
    box-shadow: 0 6px 16px -4px rgba(79, 70, 229, .45);
    transform: translateY(-8px);
    border-radius: 16px;
    padding: 10px 4px;
}
.bm-bn-item.is-cta:hover {
    background: var(--bm-primary-hover);
    color: var(--bm-on-primary);
}

@media (max-width: 768px) {
    .bm-bottom-nav { display: grid; }
    body { padding-bottom: 72px; }
    .bm-header-actions .bm-btn { display: none; }
    .bm-search-panel {
        position: fixed;
        top: calc(var(--bm-header-h, 70px) + 8px);
        inset-inline-end: 4vw;
        inset-inline-start: 4vw;
        width: auto;
    }
}