.announcement-dialog {
    width: min(420px, calc(100vw - 32px));
    max-height: calc(100vh - 40px);
    max-height: calc(100dvh - 40px);
    padding: 20px;
    overflow: hidden;
    border: 1px solid #303740;
    border-radius: 12px;
    background: #171c23;
    color: #e0e7ef;
    box-shadow: 0 24px 70px rgba(0, 0, 0, .48);
}

.announcement-dialog[open] {
    display: flex;
    flex-direction: column;
}

.announcement-dialog::backdrop {
    background: rgba(3, 8, 15, .76);
    backdrop-filter: blur(2px);
}

.announcement-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 0 0 auto;
    margin: 0 0 12px;
}

.announcement-heading h2 {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0;
    color: #eef4fc;
    font-size: 16px;
    font-weight: 700;
}

.announcement-dot {
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    border-radius: 50%;
    background: #5ca9ff;
    box-shadow: 0 0 10px rgba(92, 169, 255, .45);
}

.announcement-dismiss {
    display: grid;
    width: 26px;
    height: 26px;
    place-items: center;
    margin: -4px -4px 0 0;
    padding: 0;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: #8593a2;
    font-size: 19px;
    line-height: 1;
    cursor: pointer;
}

.announcement-dismiss:hover {
    background: #27313d;
    color: #edf3fb;
}

.announcement-dismiss:focus,
.announcement-dismiss:focus-visible {
    outline: none;
}

.announcement-content {
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    overflow-wrap: anywhere;
    color: #e0e7ef;
    font-size: 14px;
    line-height: 1.8;
    text-align: left;
}

.announcement-content > :last-child {
    margin-bottom: 0;
}

.announcement-content p,
.announcement-content ul,
.announcement-content ol,
.announcement-content blockquote {
    margin: 0 0 12px;
}

.announcement-content ul,
.announcement-content ol {
    padding-left: 24px;
}

.announcement-content h1,
.announcement-content h2,
.announcement-content h3,
.announcement-content h4 {
    margin: 0 0 12px;
    font-size: 17px;
}

.announcement-content a {
    color: #68adff;
    text-decoration: underline;
}

.announcement-content img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

.announcement-content table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
}

.announcement-content td,
.announcement-content th {
    padding: 6px;
    border: 1px solid #303b4a;
}

.announcement-content pre {
    white-space: pre-wrap;
}

.announcement-actions {
    display: flex;
    flex: 0 0 auto;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
}

.announcement-dialog .announcement-actions .announcement-button {
    width: 116px;
    min-width: 0;
    height: 36px;
    min-height: 36px;
    padding: 7px 12px;
    border: 1px solid transparent;
    border-radius: 8px;
    color: #102235;
    box-shadow: none;
    font-size: 12px;
    font-weight: 500;
    line-height: 20px;
    transform: none;
}

.announcement-actions .announcement-button:focus,
.announcement-actions .announcement-button:focus-visible {
    outline: none;
    box-shadow: none;
}

.announcement-dialog .announcement-actions .announcement-button-today {
    background: #aab9ca;
    border-color: transparent;
    color: #142031;
}

.announcement-dialog .announcement-actions .announcement-button-close {
    background: #5ca9ff;
    border-color: transparent;
    color: #102235;
}

.announcement-dialog .announcement-button:hover {
    filter: brightness(1.08);
}

.announcement-dialog .announcement-button:active {
    filter: brightness(.95);
}

@media (max-width: 480px) {
    .announcement-dialog {
        padding: 18px;
    }

    .announcement-dialog .announcement-actions .announcement-button {
        width: auto;
        min-width: 0;
        flex: 1;
    }
}

html[data-theme=light] .announcement-dialog {
    border-color: var(--line);
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 24px 70px rgba(30, 45, 80, .2);
}

html[data-theme=light] .announcement-heading h2,
html[data-theme=light] .announcement-content {
    color: var(--text);
}

html[data-theme=light] .announcement-dismiss:hover {
    background: var(--subtle);
    color: var(--text);
}

html[data-theme=light] .announcement-content a {
    color: var(--blue);
}

html[data-theme=light] .announcement-content td,
html[data-theme=light] .announcement-content th {
    border-color: var(--line);
}

html[data-theme=light] .announcement-dialog .announcement-actions .announcement-button-today {
    background: var(--subtle);
    border-color: transparent;
    color: var(--text);
}

html[data-theme=light] .announcement-dialog .announcement-actions .announcement-button-close {
    background: var(--blue);
    border-color: transparent;
    color: #fff;
}

@media (prefers-reduced-motion: reduce) {
    .announcement-dialog {
        animation: none;
    }
}