.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:where(
    button,
    a,
    [role="button"],
    input,
    textarea,
    select,
    .toggle,
    .nav-rail-btn,
    .sidebar-topbar-btn,
    .settings-side-item,
    .menu-item,
    .file-card
):focus-visible {
    outline: 3px solid rgba(96, 165, 250, 0.95);
    outline-offset: 3px;
    box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.22);
}

#messageInput {
    caret-color: #60a5fa;
}

#messageInput::placeholder {
    color: #94a3b8;
}

.preview-box {
    min-width: 64px;
    min-height: 64px;
}

.preview-box img {
    width: 64px;
    height: 64px;
    object-fit: cover;
}

.preview-box button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.file-card,
.menu-item,
.settings-side-item,
.nav-rail-btn,
.btn-round {
    transition:
        transform 0.18s ease,
        background 0.18s ease,
        box-shadow 0.18s ease,
        color 0.18s ease;
}

.message-bubble img,
.chat-image,
.chat-sticker,
video {
    content-visibility: auto;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .animate-bounce,
    .message-pop,
    .boomerang-anim,
    .shake {
        animation: none !important;
        transform: none !important;
    }
}

@media (max-width: 767px) {
    .input-area {
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
    }

    #messagesContainer {
        padding-left: 10px;
        padding-right: 10px;
    }
}