/* ============================================================
 * 13-header-buttons.css
 * Nút Video call / Search / Info / Back trên header đoạn chat (kiểu kính mờ - glassmorphism), có override riêng cho light theme.
 * ============================================================ */
/* Call / search / info — mọi màn hình */
#activeChat > header button[aria-label="Video call"],
#searchInChatBtn,
#openInfoBtn {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 9999px !important;
    background: rgba(58, 58, 60, 0.55) !important;
    border: 0.5px solid rgba(255, 255, 255, 0.14) !important;
    box-shadow:
            inset 0 0.5px 0 rgba(255, 255, 255, 0.2),
            0 2px 8px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    color: rgba(255, 255, 255, 0.95) !important;
    transition: transform 0.12s ease, background 0.12s ease;
}

/* Back — CHỈ mobile (< 768px). PC + iPad ẩn */
#openSidebarBtn {
    display: none !important;
}
@media (max-width: 767.98px) {
    #openSidebarBtn {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        min-height: 36px !important;
        padding: 0 !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        border-radius: 9999px !important;
        background: rgba(58, 58, 60, 0.55) !important;
        border: 0.5px solid rgba(255, 255, 255, 0.14) !important;
        box-shadow:
                inset 0 0.5px 0 rgba(255, 255, 255, 0.2),
                0 2px 8px rgba(0, 0, 0, 0.25);
        backdrop-filter: blur(18px) saturate(140%);
        -webkit-backdrop-filter: blur(18px) saturate(140%);
        color: rgba(255, 255, 255, 0.95) !important;
        transition: transform 0.12s ease, background 0.12s ease;
    }
    #openSidebarBtn svg {
        display: block;
        margin: 0;
        width: 20px !important;
        height: 20px !important;
        stroke-linecap: square !important;
        stroke-linejoin: miter !important;
        stroke-width: 2.5 !important;
        transform: translateX(-1px);
    }
    #openSidebarBtn:active {
        transform: scale(0.94);
    }
}

#activeChat > header button[aria-label="Video call"]:active,
#searchInChatBtn:active,
#openInfoBtn:active {
    transform: scale(0.94);
}

#activeChat > header button[aria-label="Video call"] svg,
#searchInChatBtn svg,
#openInfoBtn svg {
    display: block;
    margin: 0;
    width: 20px !important;
    height: 20px !important;
}

[data-theme="light"] #activeChat > header button[aria-label="Video call"],
[data-theme="light"] #searchInChatBtn,
[data-theme="light"] #openInfoBtn {
    background: rgba(255, 255, 255, 0.55) !important;
    border: 0.5px solid rgba(0, 0, 0, 0.08) !important;
    color: rgba(0, 0, 0, 0.88) !important;
    box-shadow:
            inset 0 0.5px 0 rgba(255, 255, 255, 0.9),
            0 2px 8px rgba(0, 0, 0, 0.08);
}
@media (max-width: 767.98px) {
    [data-theme="light"] #openSidebarBtn {
        background: rgba(255, 255, 255, 0.55) !important;
        border: 0.5px solid rgba(0, 0, 0, 0.08) !important;
        color: rgba(0, 0, 0, 0.88) !important;
        box-shadow:
                inset 0 0.5px 0 rgba(255, 255, 255, 0.9),
                0 2px 8px rgba(0, 0, 0, 0.08);
    }
}