.announcement-editor {
    border: 1px solid rgba(95,146,219,0.14);
    border-radius: 18px;
    background: rgba(255,255,255,0.88);
    overflow: hidden;
    box-shadow: 0 10px 24px rgba(64,106,170,0.05);
}

.announcement-editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
    border-bottom: 1px solid rgba(95,146,219,0.08);
    background: linear-gradient(180deg, rgba(248,251,255,0.96), rgba(242,248,255,0.92));
}

.announcement-editor-toolbar button {
    height: 32px;
    padding: 0 12px;
    border: 1px solid rgba(95,146,219,0.14);
    border-radius: 10px;
    background: rgba(255,255,255,0.86);
    color: #375987;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.announcement-editor-toolbar button:hover {
    transform: translateY(-1px);
    border-color: rgba(63,125,255,0.24);
    box-shadow: 0 8px 18px rgba(63,125,255,0.08);
}

.announcement-editor-canvas {
    min-height: 280px;
    padding: 18px;
    outline: none;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text);
}

.announcement-editor-canvas h1,
.announcement-editor-canvas h2,
.announcement-editor-canvas h3,
.announcement-editor-canvas h4 {
    margin: 0 0 12px;
    color: #173765;
}

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

.announcement-editor-canvas blockquote {
    padding: 10px 14px;
    border-left: 3px solid rgba(63,125,255,0.3);
    background: rgba(63,125,255,0.05);
    border-radius: 0 12px 12px 0;
}

.announcement-editor-canvas img,
.announcement-modal-content img,
.announcement-preview-cover {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}

.announcement-admin-preview {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.announcement-admin-preview-mask {
    position: absolute;
    inset: 0;
    background: rgba(6,17,38,0.56);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.announcement-admin-preview-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 960px);
    max-height: calc(100vh - 48px);
    overflow: auto;
    padding: 18px;
    border-radius: 24px;
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(255,255,255,0.72);
    box-shadow: 0 28px 60px rgba(10,24,52,0.24);
}

.announcement-admin-preview-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.announcement-admin-preview-head strong {
    font-size: 16px;
    color: #153663;
}

.announcement-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.announcement-modal[hidden] {
    display: none;
}

.announcement-modal.is-visible {
    animation: announcementFadeIn 0.28s ease;
}

.announcement-modal-backdrop {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 20%, rgba(88,152,255,0.12), transparent 24%),
        rgba(8,18,38,0.54);
    backdrop-filter: blur(12px) saturate(1.05);
    -webkit-backdrop-filter: blur(12px) saturate(1.05);
}

.announcement-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 580px);
    max-height: calc(100vh - 48px);
    overflow: auto;
    border-radius: 28px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.98), rgba(246,250,255,0.96));
    border: 1px solid rgba(255,255,255,0.84);
    box-shadow:
        0 28px 70px rgba(8,22,52,0.28),
        0 10px 28px rgba(50,94,170,0.12);
    animation: announcementDialogIn 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.announcement-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: rgba(17,40,78,0.08);
    color: #496892;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
}

.announcement-modal-close:hover {
    background: rgba(17,40,78,0.16);
    transform: rotate(90deg);
}

.announcement-modal-body {
    padding: 28px;
}

.announcement-modal-eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 12px;
    border-radius: var(--radius-pill);
    background: rgba(63,125,255,0.09);
    color: var(--blue-deep);
    border: 1px solid rgba(63,125,255,0.12);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.9px;
    text-transform: uppercase;
}

.announcement-modal-title {
    margin-top: 14px;
    font-size: 26px;
    line-height: 1.35;
    color: #153663;
    letter-spacing: 0.2px;
}

.announcement-modal-summary {
    margin-top: 10px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-soft);
}

.announcement-preview-cover,
.announcement-modal-cover {
    margin-top: 16px;
    box-shadow: 0 18px 34px rgba(70,112,184,0.14);
}

.announcement-modal-content {
    margin-top: 18px;
    color: var(--text);
    font-size: 14px;
    line-height: 1.85;
}

.announcement-modal-content h1,
.announcement-modal-content h2,
.announcement-modal-content h3,
.announcement-modal-content h4 {
    margin: 0 0 12px;
    color: #173765;
    line-height: 1.4;
}

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

.announcement-modal-content a {
    color: var(--blue-deep);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.announcement-modal-content blockquote {
    padding: 12px 14px;
    border-left: 3px solid rgba(63,125,255,0.24);
    background: rgba(63,125,255,0.05);
    border-radius: 0 12px 12px 0;
}

.announcement-modal-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid rgba(95,146,219,0.12);
}

.announcement-modal-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-soft);
    user-select: none;
}

.announcement-modal-checkbox input {
    width: 16px;
    height: 16px;
    accent-color: var(--blue-deep);
}

.announcement-modal-meta {
    margin-top: 14px;
    font-size: 12px;
    color: var(--text-faint);
}

[data-theme="dark"] .announcement-editor {
    background: rgba(18,26,44,0.88);
    border-color: rgba(110,150,210,0.12);
    box-shadow: 0 10px 24px rgba(0,0,0,0.18);
}

[data-theme="dark"] .announcement-editor-toolbar {
    border-bottom-color: rgba(110,150,210,0.08);
    background: linear-gradient(180deg, rgba(20,28,46,0.96), rgba(16,24,40,0.92));
}

[data-theme="dark"] .announcement-editor-toolbar button {
    border-color: rgba(110,150,210,0.14);
    background: rgba(28,38,60,0.88);
    color: #b4c8e4;
}

[data-theme="dark"] .announcement-editor-toolbar button:hover {
    border-color: rgba(82,140,255,0.28);
    box-shadow: 0 8px 18px rgba(0,0,0,0.22);
}

[data-theme="dark"] .announcement-editor-canvas h1,
[data-theme="dark"] .announcement-editor-canvas h2,
[data-theme="dark"] .announcement-editor-canvas h3,
[data-theme="dark"] .announcement-editor-canvas h4,
[data-theme="dark"] .announcement-modal-content h1,
[data-theme="dark"] .announcement-modal-content h2,
[data-theme="dark"] .announcement-modal-content h3,
[data-theme="dark"] .announcement-modal-content h4,
[data-theme="dark"] .announcement-admin-preview-head strong,
[data-theme="dark"] .announcement-modal-title {
    color: var(--text);
}

[data-theme="dark"] .announcement-editor-canvas blockquote,
[data-theme="dark"] .announcement-modal-content blockquote {
    border-left-color: rgba(82,140,255,0.3);
    background: rgba(82,140,255,0.08);
}

[data-theme="dark"] .announcement-admin-preview-dialog {
    background: rgba(18,26,44,0.94);
    border-color: rgba(110,150,210,0.12);
    box-shadow: 0 28px 60px rgba(0,0,0,0.38);
}

[data-theme="dark"] .announcement-modal-dialog {
    background: linear-gradient(180deg, rgba(20,28,46,0.98), rgba(16,24,40,0.96));
    border-color: rgba(110,150,210,0.14);
    box-shadow:
        0 28px 70px rgba(0,0,0,0.42),
        0 10px 28px rgba(15,28,52,0.24);
}

[data-theme="dark"] .announcement-modal-close {
    background: rgba(82,140,255,0.08);
    color: #9eb8d8;
}

[data-theme="dark"] .announcement-modal-close:hover {
    background: rgba(82,140,255,0.16);
}

[data-theme="dark"] .announcement-modal-actions {
    border-top-color: rgba(110,150,210,0.1);
}

@keyframes announcementFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes announcementDialogIn {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 768px) {
    .announcement-modal {
        align-items: flex-end;
        padding: 12px;
    }

    .announcement-modal-dialog {
        width: 100%;
        max-height: min(78vh, 720px);
        border-radius: 24px 24px 18px 18px;
    }

    .announcement-modal-body {
        padding: 22px 18px 18px;
    }

    .announcement-modal-title {
        font-size: 22px;
    }

    .announcement-modal-summary,
    .announcement-modal-content {
        font-size: 13px;
    }

    .announcement-modal-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .announcement-modal-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .announcement-modal-checkbox {
        width: 100%;
        justify-content: flex-start;
    }

    .announcement-admin-preview {
        padding: 12px;
    }

    .announcement-admin-preview-dialog {
        width: 100%;
        max-height: calc(100vh - 24px);
        padding: 14px;
        border-radius: 18px;
    }

    .announcement-editor-canvas {
        min-height: 220px;
        padding: 14px;
    }

    .announcement-editor-toolbar {
        gap: 6px;
    }

    .announcement-editor-toolbar button {
        flex: 0 0 auto;
        padding: 0 10px;
    }
}