.post-annotation-highlight {
    border-bottom: 2px dashed rgba(255, 153, 0, 0.9);
    background: rgba(255, 224, 130, 0.25);
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.post-annotation-highlight:hover {
    background: rgba(255, 193, 7, 0.32);
    border-bottom-color: rgba(255, 120, 0, 0.95);
}

.post-annotation-popover {
    position: fixed;
    z-index: 2200;
    display: none;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.22);
    backdrop-filter: blur(8px);
}

.post-annotation-popover button {
    border: none;
    border-radius: 8px;
    padding: 7px 12px;
    font-size: 13px;
    cursor: pointer;
    background: #2563eb;
    color: #fff;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.post-annotation-popover button:last-child {
    background: #0f766e;
}

.post-annotation-popover button:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}

.post-annotation-tooltip {
    position: fixed;
    z-index: 2300;
    display: none;
    max-width: 280px;
    font-size: 12px;
    line-height: 1.5;
    color: #0f172a;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(203, 213, 225, 0.7);
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.22);
    padding: 10px 12px;
    border-radius: 10px;
    backdrop-filter: blur(8px);
    white-space: pre-wrap;
}

.post-annotation-modal {
    position: fixed;
    inset: 0;
    z-index: 2400;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(2, 6, 23, 0.45);
}

.post-annotation-modal-panel {
    width: min(760px, 100%);
    max-height: 88vh;
    overflow: auto;
    border-radius: 16px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.93);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 24px 45px rgba(15, 23, 42, 0.28);
    backdrop-filter: blur(12px);
}

.post-annotation-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.post-annotation-modal-title {
    font-size: 18px;
    color: #0f172a;
    font-weight: 700;
}

.post-annotation-close {
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 24px;
    color: #64748b;
}

.post-annotation-quote {
    font-size: 14px;
    color: #334155;
    background: rgba(241, 245, 249, 0.9);
    border-left: 3px solid #60a5fa;
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 12px;
}

.post-annotation-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.post-annotation-btn {
    border: 1px solid #bfdbfe;
    background: #eff6ff;
    color: #1d4ed8;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    padding: 6px 10px;
}

.post-annotation-profile {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 14px;
    background: rgba(248, 250, 252, 0.85);
}

.post-annotation-profile.locked {
    opacity: 0.75;
    pointer-events: none;
}

.post-annotation-color.locked,
.post-annotation-profile-row input[disabled],
.post-annotation-profile-row select[disabled] {
    cursor: not-allowed;
}

.post-annotation-profile-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.post-annotation-profile-row input[type="text"] {
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 13px;
    min-width: 150px;
}

.post-annotation-avatar-preview {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #2563eb;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    background-size: cover;
    background-position: center;
}

.post-annotation-color {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
}

.post-annotation-color.active {
    border-color: #0f172a;
}

.post-annotation-comments {
    margin-top: 6px;
}

.post-annotation-comment {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    padding: 10px;
    margin-bottom: 10px;
}

.post-annotation-comment-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
}

.post-annotation-user {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #1e293b;
    font-size: 13px;
}

.post-annotation-comment-time {
    color: #64748b;
    font-size: 12px;
}

.post-annotation-comment-text {
    color: #0f172a;
    font-size: 14px;
    white-space: pre-wrap;
    line-height: 1.6;
}

.post-annotation-comment-actions {
    margin-top: 8px;
}

.post-annotation-comment-actions button {
    border: none;
    border-radius: 8px;
    background: #f1f5f9;
    color: #334155;
    cursor: pointer;
    font-size: 12px;
    padding: 5px 8px;
}

.post-annotation-form {
    margin-top: 14px;
}

.post-annotation-form textarea {
    width: 100%;
    min-height: 86px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    padding: 10px;
    font-size: 14px;
    resize: vertical;
}

.post-annotation-form-footer {
    margin-top: 8px;
    display: flex;
    justify-content: flex-end;
}

.post-annotation-empty {
    color: #64748b;
    font-size: 13px;
    padding: 8px 0;
}

@media (max-width: 768px) {
    .post-annotation-modal-panel {
        padding: 14px;
        border-radius: 14px;
    }

    .post-annotation-profile-row input[type="text"] {
        min-width: 110px;
        flex: 1;
    }
}