html, body {
    font-family: 'Noto Sans TC', 'Segoe UI', Roboto, Arial, sans-serif;
    background: #FAF8F5;
    color: #4A4A4A;
}

/* ── Morandi 全域覆蓋 ── */
.mud-appbar { border-bottom: 1px solid rgba(255,255,255,0.1); }
.mud-drawer { border-right: 1px solid #E0DCD7; }
.mud-nav-link { border-radius: 8px !important; margin: 2px 8px !important; }
.mud-nav-link:hover { background: rgba(123,141,158,0.08) !important; }
.mud-nav-link.active { background: rgba(123,141,158,0.15) !important; color: #5F7285 !important; }
.mud-chip { border-radius: 6px !important; }
.mud-card { border-radius: 10px !important; border: 1px solid #E8E4DF; box-shadow: 0 1px 4px rgba(0,0,0,0.04) !important; }
.mud-table { border-radius: 10px !important; overflow: hidden; }
.mud-table .mud-table-head .mud-table-cell { background: #F0EDE8; color: #5A5A5A; font-weight: 500; }
.mud-paper { border-radius: 10px !important; }
.mud-dialog .mud-dialog-content { padding: 16px 24px; }
.mud-button.mud-button-filled { border-radius: 8px !important; text-transform: none; font-weight: 500; letter-spacing: 0.3px; }
.mud-button.mud-button-outlined { border-radius: 8px !important; text-transform: none; }
.mud-input-outlined .mud-input-outlined-border { border-radius: 8px !important; }
.mud-select .mud-input-outlined .mud-input-outlined-border { border-radius: 8px !important; }

/* ── Icon 垂直置中對齊 ── */
.mud-list-item-icon { display: inline-flex !important; align-items: center !important; justify-content: center !important; }
.mud-nav-link .mud-nav-link-icon { display: inline-flex !important; align-items: center !important; justify-content: center !important; }
.mud-chip-content { display: inline-flex !important; align-items: center !important; gap: 4px; }
.mud-button-icon-start { display: inline-flex !important; align-items: center !important; }
.mud-icon-button { display: inline-flex !important; align-items: center !important; justify-content: center !important; }
.mud-avatar { display: inline-flex !important; align-items: center !important; justify-content: center !important; }
.d-flex.align-center { align-items: center !important; }

/* ── 懸浮按鈕 Morandi ── */

/* AppBar logout button */
.appbar-logout-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    vertical-align: middle;
}
.appbar-logout-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Nav unread badge — Morandi 玫瑰色 */
.nav-unread-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: #C48484;
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    flex-shrink: 0;
}

/* Quill editor: image responsive */
.ql-editor img {
    max-width: 100%;
}

/* Message/description content: force long text to wrap */
.ql-content,
.msg-content {
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-all;
    overflow: visible;
}

.ql-content img,
.msg-content img {
    max-width: 100%;
    height: auto;
    cursor: pointer;
    border-radius: 4px;
    transition: opacity 0.15s;
}
.ql-content img:hover,
.msg-content img:hover {
    opacity: 0.85;
}
.ql-content p, .msg-content p { margin: 0.3em 0; }
.ql-content ul, .ql-content ol, .msg-content ul, .msg-content ol { padding-left: 1.5em; }

/* 引用區塊 blockquote */
.ql-content blockquote,
.msg-content blockquote {
    border-left: 4px solid #B0917A;
    margin: 0.5em 0;
    padding: 0.5em 1em;
    background: #F5F3F0;
    color: #555;
    border-radius: 0 6px 6px 0;
}

/* 程式碼區塊 */
.ql-content pre,
.msg-content pre,
.ql-content pre.ql-syntax,
.msg-content pre.ql-syntax {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 0.8em 1em;
    border-radius: 6px;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0.5em 0;
    white-space: pre;
}

/* 行內程式碼 */
.ql-content code,
.msg-content code {
    background: #EEEDEB;
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.88em;
    color: #c7254e;
}

/* pre 內的 code 不再加額外背景 */
.ql-content pre code,
.msg-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* Image gallery lightbox */
.img-lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: lightbox-fadein 0.2s ease;
    user-select: none;
}
.img-lightbox-overlay img.lightbox-main {
    max-width: 88vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 4px 30px rgba(0,0,0,0.5);
    transition: opacity 0.2s;
}
.img-lightbox-close {
    position: fixed;
    top: 16px;
    right: 24px;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    transition: background 0.2s;
}
.img-lightbox-close:hover { background: rgba(255,255,255,0.35); }

.lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.12);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    transition: background 0.2s;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.3); }
.lightbox-nav.prev { left: 20px; }
.lightbox-nav.next { right: 20px; }

.lightbox-counter {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    z-index: 10001;
    background: rgba(0,0,0,0.5);
    padding: 4px 16px;
    border-radius: 16px;
}

.lightbox-thumbstrip {
    position: fixed;
    bottom: 56px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 10001;
    max-width: 90vw;
    overflow-x: auto;
    padding: 6px;
}
.lightbox-thumb {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.5;
    border: 2px solid transparent;
    transition: opacity 0.2s, border-color 0.2s;
    flex-shrink: 0;
}
.lightbox-thumb:hover { opacity: 0.8; }
.lightbox-thumb.active { opacity: 1; border-color: #fff; }

@keyframes lightbox-fadein {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Attachment image thumbnail grid */
.att-thumb-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}
.att-thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid #e0e0e0;
    transition: transform 0.15s, box-shadow 0.15s;
}
.att-thumb:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Floating scroll buttons */
.scroll-fab-container {
    position: fixed;
    right: 20px;
    bottom: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.scroll-fab {
    opacity: 0.6;
    transition: opacity 0.2s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2) !important;
}
.scroll-fab:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* Unread indicator dot — Morandi 玫瑰色 */
.unread-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #C48484;
    flex-shrink: 0;
}

a, .btn-link {
    color: #7B8D9E;
}

.btn-primary {
    color: #fff;
    background-color: #7B8D9E;
    border-color: #6B7D8E;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem rgba(123,141,158,0.4);
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

/* AppBar RWD — title 不換行 + mobile 隱藏次要文字 */
.appbar-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}
@media (max-width: 600px) {
    .appbar-title { font-size: 1rem !important; letter-spacing: 0 !important; }
    /* 隱藏語言下拉的「中文」/「English」文字（text node），保留前後 icon */
    .appbar-lang .mud-button-label { font-size: 0 !important; gap: 0 !important; }
    .appbar-lang .mud-button-label .mud-icon-root { font-size: 1.25rem !important; }
    .appbar-username { display: none !important; }                       /* 隱藏 displayName */
    .mud-appbar { padding-left: 8px !important; padding-right: 8px !important; }
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}