/* DeepAgent Chat - Custom Styles */
:root {
    --sidebar-width: 280px;
    --header-height: 56px;
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --bg-dark: #1a1a2e;
    --bg-sidebar: #16213e;
    --bg-chat: #0f3460;
    --text-light: #e2e8f0;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --user-bubble: #6366f1;
    --ai-bubble: #1e293b;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
}

* { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    margin: 0;
    height: 100vh;
    overflow: hidden;
}

/* ============== Auth Pages ============== */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: 20px;
}
.auth-card {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}
.auth-card .logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 8px;
}
.auth-card .subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 0.9rem;
}
.auth-card .text-muted { color: var(--text-muted); }
.auth-card .form-label { color: var(--text-light); font-size: 0.85rem; }
.auth-card .form-control {
    background: #1e293b;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 8px;
    padding: 10px 14px;
}
.auth-card .form-control:focus {
    background: #334155;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.2);
}
.auth-card .btn-primary {
    background: var(--primary);
    border: none;
    padding: 10px;
    border-radius: 8px;
    font-weight: 600;
    width: 100%;
}
.auth-card .btn-primary:hover { background: var(--primary-dark); }
.auth-link { color: var(--primary); text-decoration: none; }
.auth-link:hover { text-decoration: underline; }

/* ============== Landing Page ============== */
.landing-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    text-align: center;
    padding: 20px;
}
.landing-wrapper h1 { font-size: 3rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.landing-wrapper h1 span { color: var(--primary); }
.landing-wrapper p { color: var(--text-muted); font-size: 1.1rem; max-width: 600px; margin-bottom: 32px; }
.landing-wrapper .btn {
    padding: 12px 32px;
    border-radius: 10px;
    font-weight: 600;
    margin: 0 6px;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin-top: 48px;
}
.feature-card {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: left;
}
.feature-card i { font-size: 1.5rem; color: var(--primary); margin-bottom: 12px; }
.feature-card h5 { color: #fff; font-size: 1rem; }
.feature-card p { color: var(--text-muted); font-size: 0.85rem; margin: 0; }

/* ============== Chat Layout ============== */
.chat-container {
    display: flex;
    height: 100vh;
}
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.sidebar-header .brand { font-weight: 700; font-size: 1rem; color: var(--primary); }
.sidebar-header .btn { padding: 4px 10px; font-size: 0.8rem; }
.conv-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}
.conv-item {
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.15s;
    font-size: 0.85rem;
}
.conv-item:hover { background: rgba(99,102,241,0.1); }
.conv-item.active { background: rgba(99,102,241,0.2); }
.conv-item .conv-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv-item .conv-actions { display: none; margin-left: 8px; }
.conv-item:hover .conv-actions { display: flex; gap: 4px; }
.conv-item .conv-actions .btn { padding: 2px 6px; font-size: 0.7rem; }
.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
}
.sidebar-footer .user-info { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; }

/* ============== Sidebar collapse for desktop ============== */
@media (min-width: 769px) {
    .sidebar {
        transition: width 0.3s ease, min-width 0.3s ease, padding 0.3s ease;
        min-width: var(--sidebar-width);
        overflow: hidden;
    }
    .sidebar.collapsed {
        width: 0;
        min-width: 0;
        padding: 0;
        border-right: none;
        flex-shrink: 1;
    }
    .sidebar.collapsed .sidebar-header,
    .sidebar.collapsed .conv-list,
    .sidebar.collapsed .sidebar-footer {
        opacity: 0;
        pointer-events: none;
    }
}

.main-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.chat-header {
    height: var(--header-height);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 12px;
    background: var(--bg-dark);
}
.chat-header select { background: #1e293b; border: 1px solid var(--border-color); color: var(--text-light); border-radius: 8px; padding: 6px 12px; font-size: 0.85rem; }
.chat-header #voiceToggleBtn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.chat-header #musicPlayerToggleBtn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── 手机端「更多操作」汉堡按钮（桌面端隐藏） ── */
.chat-more-dropdown { position: relative; }
.chat-more-toggle { display: none; }
.chat-more-menu { max-height: 70vh; overflow-y: auto; }
@media (max-width: 768px) {
    .chat-more-toggle { display: inline-flex; }
    /* 原 exportBtn 的 ms-auto 右推被隐藏后，汉堡按钮接管靠右定位 */
    .chat-more-dropdown { margin-left: auto; }
    /* 移动端收纳右侧按钮：隐藏原按钮，仅保留汉堡入口 */
    .chat-header #exportBtn,
    .chat-header #asyncTasksBtn,
    .chat-header #voiceToggleBtn,
    .chat-header #musicPlayerToggleBtn,
    .chat-header .chat-lang-wrap,
    .chat-header #themeToggle { display: none !important; }
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: var(--bg-chat);
}
.message-row { display: flex; margin-bottom: 20px; }
.message-row.user { justify-content: flex-end; }
.message-row.assistant { justify-content: flex-start; }
.message-bubble {
    max-width: 75%;
    padding: 12px 18px;
    border-radius: 14px;
    line-height: 1.6;
    font-size: 0.9rem;
    word-break: break-word;
}
.message-row.user .message-bubble { background: var(--user-bubble); border-bottom-right-radius: 4px; }
.message-row.assistant .message-bubble { background: var(--ai-bubble); border: 1px solid var(--border-color); border-bottom-left-radius: 4px; }
.message-bubble pre {
    background: #0f172a;
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.8rem;
}
.message-bubble code { font-size: 0.8rem; }
.message-time { font-size: 0.7rem; color: var(--text-muted); }
.message-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 4px; gap: 8px; }
.message-meta .msg-usage { font-size: 0.68rem; color: var(--text-muted); }
.btn-copy { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 2px 4px; font-size: 0.75rem; opacity: 0; transition: opacity 0.15s; }
.message-bubble:hover .btn-copy { opacity: 1; }
.btn-copy:hover { color: var(--primary); }

.chat-input-area {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-dark);
}
.chat-input-area form { display: flex; gap: 10px; align-items: flex-end; }
.chat-input-area textarea {
    flex: 1;
    background: #1e293b;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 12px;
    padding: 10px 14px;
    resize: none;
    min-height: 44px;
    max-height: 150px;
    font-size: 0.9rem;
}
.chat-input-area textarea:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(99,102,241,0.15); }
.chat-input-area .btn-send {
    background: var(--primary);
    border: none;
    border-radius: 12px;
    padding: 10px 20px;
    font-weight: 600;
    white-space: nowrap;
}
.chat-input-area .btn-send:hover { background: var(--primary-dark); }
.chat-input-area .btn-send.btn-stop {
    background: var(--danger);
    border-color: var(--danger);
    animation: pulse-stop 1.5s ease-in-out infinite;
}
.chat-input-area .btn-send.btn-stop:hover { background: #dc2626; }
@keyframes pulse-stop {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.4); }
    50% { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
}
.chat-input-area .btn-file {
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-light);
}
/* ============== File Attachment Styles ============== */
.file-attachment {
    display: none;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    background: rgba(99,102,241,0.1);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    margin-right: 8px;
    max-width: 400px;
    max-height: 100px;
    overflow-y: auto;
}
.file-attach-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(99,102,241,0.2);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.78rem;
    border: 1px solid rgba(99,102,241,0.25);
    position: relative;
    max-height: 32px;
}
.file-attach-item.error {
    border-color: var(--danger);
    background: rgba(239,68,68,0.15);
}
.file-attach-item .file-attach-thumb {
    width: 24px;
    height: 24px;
    object-fit: cover;
    border-radius: 3px;
    flex-shrink: 0;
}
.file-attach-name {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-light);
}
.file-attach-size {
    color: var(--text-muted);
    font-size: 0.7rem;
    white-space: nowrap;
}
.file-attach-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0 2px;
    font-size: 0.7rem;
    line-height: 1;
}
.file-attach-remove:hover {
    color: var(--danger);
}
.file-attach-error-msg {
    color: var(--danger);
    font-size: 0.7rem;
    margin-left: 2px;
}

/* ============== Image preview in chat bubble ============== */
.img-preview-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}
.img-preview-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.img-preview-item img {
    max-width: 160px;
    max-height: 120px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
    cursor: pointer;
    transition: transform 0.15s;
    object-fit: contain;
    background: rgba(0,0,0,0.3);
}
.img-preview-item img:hover {
    transform: scale(1.05);
}
.img-preview-item .img-preview-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-attachment-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(99,102,241,0.25);
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    color: #a5b4fc;
    border: 1px solid rgba(99,102,241,0.3);
    margin-bottom: 6px;
}

/* Dark-themed card-body (profile, admin cards) */
/* These are handled by mold-custom.css with proper dark/light scoping */
/* .card-body { color: var(--text-light); } */
 .card-body h5 { color: #fff; } 
/* .card-body strong { color: #fff; } */

/* Profile / user-facing settings — same dark theme as admin */
.main-area .form-label { color: var(--text-light); font-size: 0.85rem; }
.main-area .form-control {
    background: #0f172a;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 8px;
}
.main-area .form-control:focus {
    background: #1e293b;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.main-area .text-muted { color: var(--text-muted) !important; }

/* ============== Admin Layout ============== */
.admin-wrapper {
    display: flex;
    height: 100vh;
}
.admin-sidebar {
    width: 240px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.admin-sidebar .brand { padding: 16px 20px; font-weight: 700; color: var(--primary); border-bottom: 1px solid var(--border-color); font-size: 1rem; }
.admin-nav { flex: 1; overflow-y: auto; padding: 12px; }
.admin-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--text-light);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 2px;
    transition: background 0.15s;
}
.admin-nav a:hover, .admin-nav a.active { background: rgba(99,102,241,0.2); color: #fff; }
.admin-nav a i { width: 18px; text-align: center; }
.admin-nav .nav-section { font-size: 0.7rem; color: var(--text-muted); padding: 12px 14px 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.admin-main {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: var(--bg-dark);
}
.admin-main h4 { margin-bottom: 20px; color: #fff; }
.admin-main .form-label { color: var(--text-light); font-size: 0.85rem; }
.admin-main .form-control, .admin-main .form-select {
    background: #1e293b;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 8px;
}
.admin-main .form-control:focus, .admin-main .form-select:focus {
    background: #334155;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.admin-main .text-muted { color: var(--text-muted) !important; }
.stat-card {
    background: rgba(30,41,59,0.6);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}
.stat-card .stat-num { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { color: var(--text-muted); font-size: 0.8rem; }
.admin-table {
    background: #1e293b;
    border-radius: 12px;
    overflow: hidden;
}
.admin-table th {
    background: #0f172a;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
}
.admin-table td { padding: 12px 16px; border-bottom: 1px solid rgba(51,65,85,0.5); font-size: 0.85rem; vertical-align: middle; }
.admin-table tr:hover td { background: rgba(99,102,241,0.12); }
.admin-table .btn-outline-light {
    color: var(--text-muted);
    border-color: var(--text-muted);
}
.admin-table .btn-outline-light:hover {
    color: #fff;
    background: rgba(99,102,241,0.2);
    border-color: var(--primary);
}
.badge-role { font-size: 0.75rem; padding: 4px 10px; border-radius: 20px; }
.badge-role.admin { background: rgba(239,68,68,0.2); color: #ef4444; }
.badge-role.vip { background: rgba(245,158,11,0.2); color: #f59e0b; }
.badge-role.user { background: rgba(99,102,241,0.2); color: #6366f1; }
.modal-content { background: #1e293b; color: var(--text-light); border: 1px solid var(--border-color); }
.modal-header { border-bottom: 1px solid var(--border-color); }
.modal-footer { border-top: 1px solid var(--border-color); }
.modal .form-control, .modal .form-select {
    background: #0f172a;
    border: 1px solid var(--border-color);
    color: var(--text-light);
}
.modal .form-control:focus, .modal .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.modal .btn-close { filter: invert(1); }

/* ============== Sidebar header actions ============== */
.sidebar-header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}
.sidebar-header-actions .btn { padding: 4px 8px; font-size: 0.8rem; }

/* ============== Search Modal ============== */
.search-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}
.search-modal-content {
    position: relative;
    margin: 80px auto 0;
    width: 90%;
    max-width: 600px;
    max-height: 70vh;
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    overflow: hidden;
}
.search-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.search-modal-header h5 { margin: 0; font-size: 1rem; color: #fff; }
.search-modal-header h5 i { color: var(--primary); margin-right: 8px; }
.search-modal-body {
    padding: 16px 20px 20px;
    overflow-y: auto;
    flex: 1;
}
.search-input-wrapper {
    position: relative;
    margin-bottom: 12px;
}
.search-input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
}
.search-input {
    width: 100%;
    padding: 12px 14px 12px 42px;
    background: #0f172a;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-light);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}
.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.search-input::placeholder { color: var(--text-muted); }
.search-results { margin-top: 8px; }
.search-loading, .search-no-results, .search-error {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.search-error { color: var(--danger); }
.search-stats {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}
.search-stats strong { color: var(--primary); }
.search-group {
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}
.search-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(99,102,241,0.08);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
    transition: background 0.15s;
}
.search-group-header:hover { background: rgba(99,102,241,0.15); }
.search-group-header i { color: var(--primary); }
.search-conv-meta {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}
.search-match {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 14px;
    cursor: pointer;
    transition: background 0.12s;
    border-top: 1px solid rgba(51,65,85,0.4);
}
.search-match:hover { background: rgba(99,102,241,0.06); }
.search-match-role {
    flex-shrink: 0;
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
    margin-top: 2px;
}
.search-match-role.user { background: rgba(99,102,241,0.15); color: var(--primary); }
.search-match-role.assistant { background: rgba(34,197,94,0.15); color: var(--success); }
.search-match-role i { margin-right: 3px; }
.search-match-text {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Light theme overrides for search modal */
.light-theme .search-modal-content {
    background: #ffffff;
}
.light-theme .search-modal-header h5 { color: #1e293b; }
.light-theme .search-input {
    background: #f1f5f9;
    color: #1e293b;
    border-color: #e2e8f0;
}
.light-theme .search-input:focus {
    border-color: var(--primary);
    background: #ffffff;
}
.light-theme .search-group {
    border-color: #e2e8f0;
}
.light-theme .search-group-header {
    background: rgba(99,102,241,0.06);
    color: #1e293b;
}
.light-theme .search-match {
    border-top-color: #f1f5f8;
}
.light-theme .search-match-text { color: #64748b; }

/* ============== Profile ============== */
.profile-wrapper {
    max-width: 600px;
    margin: 40px auto;
    padding: 0 20px;
}

/* ============== Mobile Responsive ============== */
@media (max-width: 768px) {
    .sidebar { position: fixed; left: -100%; z-index: 1000; width: 85%; max-width: 300px; transition: left 0.3s; height: 100vh; }
    .sidebar.open { left: 0; }
    .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 999; }
    .sidebar-overlay.open { display: block; }
    .chat-header { padding: 0 12px; }
    .chat-header select { font-size: 0.75rem; padding: 4px 8px; }
    .chat-messages { padding: 12px; }
    .chat-input-area { padding: 12px; }
    .chat-input-area form { gap: 6px; }
    .chat-input-area textarea { font-size: 0.85rem; }
    .message-bubble { max-width: 90%; }
    .admin-sidebar { position: fixed; left: -100%; z-index: 1000; width: 260px; transition: left 0.3s; height: 100vh; }
    .admin-sidebar.open { left: 0; }
    .landing-wrapper h1 { font-size: 2rem; }
    .features-grid { grid-template-columns: 1fr; }
    .auth-card { padding: 24px; }
}

/* ============== Scrollbar ============== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #475569; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #64748b; }

/* ============== Markdown in messages ============== */
.markdown-body { line-height: 1.7; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 { margin: 12px 0 6px; }
.markdown-body h1 { font-size: 1.3rem; border-bottom: 1px solid var(--border-color); padding-bottom: 4px; }
.markdown-body h2 { font-size: 1.15rem; }
.markdown-body h3 { font-size: 1.05rem; }
.markdown-body p { margin: 4px 0 8px; }
.markdown-body ul, .markdown-body ol { padding-left: 22px; margin: 4px 0 8px; }
.markdown-body li { margin: 2px 0; }
.markdown-body blockquote { border-left: 3px solid var(--primary); padding: 4px 14px; margin: 8px 0; color: var(--text-muted); background: rgba(99,102,241,0.05); border-radius: 0 6px 6px 0; }
.markdown-body table { font-size: 0.8rem; border-collapse: collapse; margin: 8px 0; width: 100%; }
.markdown-body table th, .markdown-body table td { padding: 6px 10px; border: 1px solid var(--border-color); text-align: left; }
.markdown-body table th { background: rgba(99,102,241,0.15); font-weight: 600; }
.markdown-body table tr:nth-child(even) { background: rgba(255,255,255,0.02); }
.markdown-body code { background: rgba(99,102,241,0.15); padding: 2px 6px; border-radius: 4px; font-size: 0.82rem; font-family: 'Consolas', 'Monaco', monospace; }
.markdown-body pre { background: #0f172a; padding: 12px 16px; border-radius: 8px; overflow-x: auto; margin: 8px 0; border: 1px solid var(--border-color); }
.markdown-body pre code { background: none; padding: 0; font-size: 0.8rem; color: #e2e8f0; }
.markdown-body hr { border: none; border-top: 1px solid var(--border-color); margin: 12px 0; }
.markdown-body a { color: var(--primary); text-decoration: underline; }
.markdown-body img { max-width: 100%; border-radius: 8px; }
.markdown-body strong { color: #fff; }

/* ============== Light theme ============== */
.light-theme {
    --bg-dark: #ffffff;
    --bg-sidebar: #f8fafc;
    --bg-chat: #f1f5f9;
    --text-light: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --user-bubble: #6366f1;
    --ai-bubble: #ffffff;
    --primary: #6366f1;
    --primary-dark: #4f46e5;
}
.light-theme body { background: #f1f5f9; color: #1e293b; }
.light-theme .auth-wrapper { background: linear-gradient(135deg, #e0e7ff 0%, #f0f0ff 50%, #e8f0fe 100%); }
.light-theme .auth-card { background: rgba(255,255,255,0.95); border-color: #e2e8f0; }
.light-theme .auth-card .form-control { background: #f1f5f9; color: #1e293b; border-color: #e2e8f0; }
.light-theme .auth-card .form-control:focus { background: #fff; }
.light-theme .landing-wrapper { background: linear-gradient(135deg, #e0e7ff 0%, #f0f0ff 50%, #e8f0fe 100%); }
.light-theme .landing-wrapper h1 { color: #1e293b; }
.light-theme .feature-card { background: rgba(255,255,255,0.9); }
.light-theme .feature-card h5 { color: #1e293b; }
.light-theme .chat-header select { background: #ffffff; color: #1e293b; border-color: #e2e8f0; }
.light-theme .chat-input-area textarea { background: #ffffff; color: #1e293b; border-color: #e2e8f0; }
.light-theme .chat-input-area textarea:focus { border-color: var(--primary); }
.light-theme .chat-input-area .btn-file { background: #ffffff; color: #1e293b; border-color: #e2e8f0; }
.light-theme .admin-sidebar { background: #f8fafc; }
.light-theme .admin-sidebar .brand { color: var(--primary); }
.light-theme .admin-sidebar .admin-nav a { color: #475569; }
.light-theme .admin-sidebar .admin-nav a:hover { background: rgba(99,102,241,0.08); color: var(--primary); }
.light-theme .admin-sidebar .admin-nav a.active { background: rgba(99,102,241,0.12); color: var(--primary); }
.light-theme .admin-sidebar .admin-nav .nav-section { color: #94a3b8; }
.light-theme .admin-main { background: #ffffff; }
.light-theme .admin-main .form-control, .light-theme .admin-main .form-select { background: #ffffff; color: #1e293b; border-color: #e2e8f0; }
.light-theme .admin-table { background: #ffffff; }
.light-theme .admin-table th { background: #f8fafc; color: #64748b; }
.light-theme .admin-table td { border-color: #f1f5f9; }
.light-theme .admin-main .form-label { color: #1e293b; }
.light-theme .admin-main .nav-tabs .nav-link.active { background: #ffffff; color: #1e293b; border-color: #e2e8f0; }
.light-theme .admin-main .nav-tabs .nav-link:not(.active) { color: #64748b; }
.light-theme .admin-main .form-text.text-muted { color: #64748b !important; }
.light-theme .admin-main .form-check-label { color: #1e293b; }
.light-theme .modal-content { background: #ffffff; color: #1e293b; }
.light-theme .modal .form-control, .light-theme .modal .form-select { background: #f1f5f9; color: #1e293b; border-color: #e2e8f0; }
.light-theme .stat-card { background: rgba(248,250,252,0.8); }
.light-theme .message-row.user .message-bubble,
.light-theme .message-row.assistant .message-bubble { background: #ffffff; }
.light-theme .markdown-body strong { color: #1e293b; }
.light-theme .markdown-body pre { background: #f8fafc; }
.light-theme .markdown-body pre code { color: #1e293b; }
.light-theme .sidebar-header .brand { color: var(--primary); }
.light-theme .card-body strong { color: #1e293b; }
.light-theme .card-body h5 { color: #1e293b; }
.light-theme .markdown-body table th { background: rgba(99,102,241,0.08); }
.light-theme ::-webkit-scrollbar-thumb { background: #cbd5e1; }
.light-theme .btn-theme-toggle { color: #1e293b; border-color: #e2e8f0; }
.light-theme .btn-theme-toggle:hover { background: #f1f5f9; }
.light-theme .main-area .card,
.light-theme .profile-wrapper .card {
    background: #ffffff !important;
    border-color: #e2e8f0 !important;
}
.light-theme .main-area .card-body h5 { color: #1e293b; }
.light-theme .main-area .card-body strong { color: #1e293b; }
.light-theme .main-area .card-body .text-muted { color: #64748b !important; }
.light-theme .main-area .form-control {
    background: #ffffff;
    color: #1e293b;
    border-color: #d1d5db;
}
.light-theme .main-area .form-control:focus {
    background: #ffffff;
    border-color: var(--primary);
}

.light-theme .main-area .btn-outline-light,
.light-theme .conv-list .btn-outline-light,
.light-theme .chat-header .btn-outline-light,
.light-theme .sidebar-footer .btn-outline-light,
.light-theme .conv-item .btn-outline-light,
.light-theme .admin-main .btn-outline-light {
    color: #64748b; border-color: #cbd5e1;
}
.light-theme .main-area .btn-outline-light:hover,
.light-theme .conv-list .btn-outline-light:hover,
.light-theme .chat-header .btn-outline-light:hover,
.light-theme .sidebar-footer .btn-outline-light:hover,
.light-theme .conv-item .btn-outline-light:hover,
.light-theme .admin-main .btn-outline-light:hover {
    color: #1e293b; background: #f1f5f9; border-color: #94a3b8;
}
.light-theme .btn-voice {
    background: #ffffff;
    color: #64748b;
    border-color: #e2e8f0;
}
.light-theme .btn-voice:hover {
    background: rgba(99,102,241,0.08);
    color: var(--primary);
    border-color: var(--primary);
}
.light-theme .btn-voice.recording {
    background: rgba(239,68,68,0.1);
    color: var(--danger);
    border-color: var(--danger);
}
.light-theme .btn-tts {
    background: #ffffff;
    color: #64748b;
    border-color: #e2e8f0;
}
.light-theme .btn-tts:hover {
    background: rgba(99,102,241,0.08);
    color: var(--primary);
    border-color: var(--primary);
}
.light-theme .btn-tts.active {
    background: rgba(34,197,94,0.1);
    color: var(--success);
    border-color: var(--success);
}

/* ============== Theme toggle button ============== */
.agent-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
    flex-shrink: 1;
    min-width: 0;
}

.btn-theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 8px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.15s;
}
.btn-theme-toggle:hover { background: rgba(99,102,241,0.1); }

/* ============== Toast ============== */
.toast-container { position: fixed; top: 16px; right: 16px; z-index: 9999; }

/* ============== Tool call group (collapsible, all tools in one) ============== */
.tool-wrapper { flex-direction: column; align-items: flex-start; margin-bottom: 8px; }
.tool-toggle-bubble {
    background: rgba(245,158,11,0.12) !important;
    border: 1px solid rgba(245,158,11,0.25) !important;
    font-size: 0.8rem; padding: 6px 12px !important;
    cursor: pointer; user-select: none;
    display: flex; align-items: center; gap: 8px;
}
.tool-toggle-bubble:hover { background: rgba(245,158,11,0.2) !important; }
.tool-toggle-bubble i.fa-cog { color: var(--warning); }
.tool-toggle-bubble i.fa-check-circle { color: var(--success); }
.tool-chevron { margin-left: auto; transition: transform 0.2s; color: var(--text-muted); font-size: 0.7rem; }
.tool-details { width: 100%; margin-top: 4px; }
.tool-call-entry {
    background: rgba(30,41,59,0.6) !important;
    border: 1px solid var(--border-color) !important;
    font-size: 0.75rem; padding: 5px 10px !important;
    margin-bottom: 3px;
}
.tool-call-entry i.fa-cog { color: var(--warning); }
.tool-call-entry i.fa-check-circle { color: var(--success); }
.tool-pending { color: var(--text-muted); font-style: italic; }
.tool-duration { color: var(--success); font-weight: 600; margin-left: 4px; }
.tool-result-pre {
    background: rgba(0,0,0,0.3); margin: 3px 0 0; padding: 5px 8px;
    border-radius: 4px; font-size: 0.68rem; max-height: 100px; overflow-y: auto;
    white-space: pre-wrap; word-break: break-all; color: var(--text-muted);
}

/* Streaming cursor - only visible when .streaming class is present */
.streaming .ai-content::after {
    content: '▌';
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ============== Balance popup (theme-aware) ============== */
.balance-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10000;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 20px;
    min-width: 360px;
    max-width: 480px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    color: #e2e8f0;
}
.balance-popup .bi-label { color: #94a3b8; font-size: 0.85rem; }
.balance-popup .bi-value { text-align: right; font-weight: 600; }
.balance-popup .bi-value-bold { text-align: right; font-weight: 700; font-size: 1.05rem; color: #22c55e; }
.balance-popup .bi-ms { font-size: 11px; color: #64748b; }
.balance-popup .bi-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.balance-popup .bi-header h5 { margin: 0; }
.balance-popup hr { border-color: #334155; margin: 8px 0; }
.balance-popup table { width: 100%; }
.balance-popup table td { padding: 4px; }
.light-theme .balance-popup {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    color: #1e293b;
}
.light-theme .balance-popup .bi-label { color: #64748b; }
.light-theme .balance-popup .bi-value-bold { color: #16a34a; }
.light-theme .balance-popup .bi-ms { color: #94a3b8; }
.light-theme .balance-popup hr { border-color: #e2e8f0; }
.light-theme .balance-popup table td { color: #1e293b; }

/* ============== Voice Input & TTS Buttons ============== */
.btn-voice {
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-light);
    transition: all 0.2s;
    flex-shrink: 0;
}
.btn-voice:hover {
    background: rgba(99,102,241,0.15);
    border-color: var(--primary);
    color: var(--primary);
}
.btn-voice.recording {
    background: rgba(239,68,68,0.2);
    border-color: var(--danger);
    color: var(--danger);
    animation: voice-pulse 1s ease-in-out infinite;
}
@keyframes voice-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.3); }
    50% { box-shadow: 0 0 0 6px rgba(239,68,68,0); }
}

.btn-tts {
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-light);
    transition: all 0.2s;
    flex-shrink: 0;
}
.btn-tts:hover {
    background: rgba(99,102,241,0.15);
    border-color: var(--primary);
    color: var(--primary);
}
.btn-tts.active {
    background: rgba(34,197,94,0.2);
    border-color: var(--success);
    color: var(--success);
}

/* Voice toast notification */
.voice-toast {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
    animation: voice-toast-in 0.2s ease-out;
}
.voice-toast-info {
    background: rgba(99,102,241,0.9);
    color: #fff;
}
.voice-toast-success {
    background: rgba(34,197,94,0.9);
    color: #fff;
}
.voice-toast-danger {
    background: rgba(239,68,68,0.9);
    color: #fff;
}
.voice-toast-warning {
    background: rgba(245,158,11,0.9);
    color: #fff;
}
@keyframes voice-toast-in {
    from { opacity: 0; transform: translateX(-50%) translateY(8px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Ensure chat-input-area has position relative for toast positioning */
.chat-input-area {
    position: relative;
}

/* Permission guide popup */
.permission-guide {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    width: 380px;
    max-width: 90vw;
    animation: voice-toast-in 0.3s ease-out;
}
.permission-guide-content {
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    position: relative;
}
.permission-guide-content h5 {
    color: var(--danger);
    font-size: 1rem;
    margin: 0 0 12px;
}
.permission-guide-content h5 i {
    margin-right: 8px;
}
.permission-guide-content p {
    color: var(--text-light);
    font-size: 0.85rem;
    margin: 0 0 8px;
    line-height: 1.5;
}
.permission-guide-content ol {
    color: var(--text-light);
    font-size: 0.85rem;
    padding-left: 20px;
    margin: 8px 0;
    line-height: 1.8;
}
.permission-guide-content ol li strong {
    color: var(--primary);
}
.permission-guide-note {
    color: var(--text-muted) !important;
    font-size: 0.8rem !important;
    margin-top: 8px !important;
    padding: 8px 12px;
    background: rgba(99,102,241,0.08);
    border-radius: 8px;
}
.permission-guide-close {
    position: absolute;
    top: 8px;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}
.permission-guide-close:hover {
    color: var(--text-light);
}
.light-theme .permission-guide-content {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}
.light-theme .permission-guide-content h5 { color: var(--danger); }
.light-theme .permission-guide-content p { color: #1e293b; }
.light-theme .permission-guide-content ol { color: #1e293b; }
.light-theme .permission-guide-note { color: #64748b !important; }

/* ═══════════════════════════════════════════════════════════════
   语音波形可视化
   ═══════════════════════════════════════════════════════════════ */
.voice-waveform {
    width: 100%;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 8px;
    margin-top: 4px;
}
.voice-waveform canvas {
    display: block;
    width: 100%;
    height: 40px;
    border-radius: 4px;
}

/* ═══════════════════════════════════════════════════════════════
   语音设置面板
   ═══════════════════════════════════════════════════════════════ */
.voice-settings-panel {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-top: 4px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.voice-settings-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}
.voice-settings-row label {
    margin: 0;
    white-space: nowrap;
}
.voice-settings-row select {
    background: var(--bg-dark);
    color: var(--text-light);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 12px;
    cursor: pointer;
}
.voice-settings-row select:focus {
    outline: none;
    border-color: var(--primary);
}

/* ── 语调滑动条 ── */
.voice-slider-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}
.voice-slider {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.voice-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 2px solid #818cf8;
    transition: transform 0.15s;
}
.voice-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}
.voice-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 2px solid #818cf8;
}
.voice-slider-label {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 70px;
    text-align: center;
    white-space: nowrap;
}

/* ── 开关组件 ── */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    margin: 0;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #475569;
    transition: 0.3s;
    border-radius: 20px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: var(--primary);
}
input:checked + .slider:before {
    transform: translateX(16px);
}

.light-theme .voice-waveform {
    background: rgba(99, 102, 241, 0.03);
}
.light-theme .voice-settings-panel {
    background: #f8fafc;
    border-color: #e2e8f0;
}
.light-theme .voice-settings-row select {
    background: #ffffff;
    color: #1e293b;
    border-color: #e2e8f0;
}
.modal-card {
	width: 50%;
}
/* ===== 语言切换按钮（双语 UI）=====
   Bootstrap 5 dropdown 实现：菜单的显示/定位/自动关闭由 .dropdown-menu 组件接管，
   这里只负责触发按钮位置与深浅主题配色覆盖 */
.lang-switcher { position: fixed; top: 10px; right: 56px; z-index: 1050; }
.lang-switcher-btn { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; }
.lang-switcher-current { font-size: 0.8rem; }
/* 深色主题（默认）：覆盖 Bootstrap 默认浅色菜单 */
.lang-switcher-menu.dropdown-menu {
    --bs-dropdown-bg: #1e293b;
    --bs-dropdown-border-color: #334155;
    --bs-dropdown-link-color: #e2e8f0;
    --bs-dropdown-link-hover-bg: #334155;
    --bs-dropdown-link-hover-color: #ffffff;
    --bs-dropdown-link-active-bg: transparent;
    --bs-dropdown-link-active-color: var(--primary, #6366f1);
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
    min-width: 110px;
}
.lang-switcher-item { font-size: 0.85rem; }
.lang-switcher-item.active { font-weight: 600; }
/* 浅色主题：恢复 Bootstrap 默认浅色 */
.light-theme .lang-switcher-menu.dropdown-menu {
    --bs-dropdown-link-active-bg: transparent;
    --bs-dropdown-link-active-color: var(--primary, #6366f1);
    box-shadow: 0 8px 24px rgba(15,23,42,0.12);
}
.lang-switcher-inline { position: relative; top: auto; right: auto; }

/* ── 计划面板（plan_task 进度可视化）────────────── */
.plan-panel {
    margin: 8px 12px 12px;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    overflow: hidden;
}
.plan-panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    cursor: pointer;
    color: #e2e8f0;
    font-size: 13px;
    font-weight: 600;
    background: #0f172a;
    border-bottom: 1px solid #334155;
}
.plan-progress-bar {
    flex: 1;
    height: 6px;
    background: #334155;
    border-radius: 3px;
    overflow: hidden;
}
.plan-progress-fill {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #6366f1, #22c55e);
    border-radius: 3px;
    transition: width 0.4s ease;
}
.plan-chevron { color: #64748b; font-size: 11px; }
.plan-panel-body { padding: 8px 14px 12px; }
.plan-step {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 0;
    font-size: 13px;
    color: #94a3b8;
}
.plan-step i { margin-top: 2px; width: 14px; text-align: center; }
.plan-step-done { color: #4ade80; }
.plan-step-running { color: #e2e8f0; }
.plan-step-tool {
    background: #334155;
    color: #93c5fd;
    border-radius: 6px;
    padding: 0 8px;
    font-size: 11px;
    white-space: nowrap;
}