/* ============================================
   AI-Office — Theme System
   ============================================ */

/* Dark Theme (default) */
:root, [data-theme="dark"] {
    --neon-primary: #00e5ff;
    --neon-secondary: #7c4dff;
    --neon-accent: #00e676;
    --neon-pink: #ff4081;
    --neon-glow: 0 0 10px rgba(0, 229, 255, 0.3), 0 0 20px rgba(0, 229, 255, 0.1);
    --bg-dark: #0a0e17;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --bg-sidebar: #0d1321;
    --bg-input: #1a2332;
    --border-color: #1e293b;
    --border-neon: rgba(0, 229, 255, 0.2);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --btn-close-filter: invert(1);
    --code-bg: rgba(0, 229, 255, 0.08);
    --pre-bg: rgba(0, 0, 0, 0.3);
    --msg-system-bg: rgba(0, 229, 255, 0.05);
    --msg-user-bg: rgba(124, 77, 255, 0.1);
    --msg-user-border: rgba(124, 77, 255, 0.3);
    --avatar-neon-bg: rgba(0, 229, 255, 0.1);
    --avatar-user-bg: rgba(124, 77, 255, 0.1);
    --table-th-bg: rgba(0, 229, 255, 0.08);
    --admin-msg-agent-bg: rgba(0, 229, 255, 0.05);
    --admin-msg-user-bg: rgba(124, 77, 255, 0.05);
    --admin-msg-system-bg: rgba(0, 230, 118, 0.05);
}

/* Light Theme */
[data-theme="light"] {
    --neon-primary: #0097a7;
    --neon-secondary: #5e35b1;
    --neon-accent: #2e7d32;
    --neon-pink: #c2185b;
    --neon-glow: 0 0 10px rgba(0, 151, 167, 0.2), 0 0 20px rgba(0, 151, 167, 0.08);
    --bg-dark: #f0f2f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f9fa;
    --bg-sidebar: #ffffff;
    --bg-input: #f5f6f8;
    --border-color: #e0e4e8;
    --border-neon: rgba(0, 151, 167, 0.25);
    --text-primary: #1a1a2e;
    --text-secondary: #5a6070;
    --text-muted: #8a90a0;
    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.08);
    --btn-close-filter: none;
    --code-bg: rgba(0, 151, 167, 0.08);
    --pre-bg: #f5f6f8;
    --msg-system-bg: rgba(0, 151, 167, 0.06);
    --msg-user-bg: rgba(94, 53, 177, 0.06);
    --msg-user-border: rgba(94, 53, 177, 0.2);
    --avatar-neon-bg: rgba(0, 151, 167, 0.1);
    --avatar-user-bg: rgba(94, 53, 177, 0.1);
    --table-th-bg: rgba(0, 151, 167, 0.06);
    --admin-msg-agent-bg: rgba(0, 151, 167, 0.05);
    --admin-msg-user-bg: rgba(94, 53, 177, 0.05);
    --admin-msg-system-bg: rgba(46, 125, 50, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--neon-primary); }

/* ---- Neon Utilities ---- */
.text-neon { color: var(--neon-primary) !important; }

.btn-neon {
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
    border: none;
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1.25rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.btn-neon:hover {
    transform: translateY(-1px);
    box-shadow: var(--neon-glow);
    color: #fff;
}
.btn-neon:active { transform: translateY(0); }

.btn-outline-neon {
    border: 1px solid var(--neon-primary);
    color: var(--neon-primary);
    background: transparent;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.btn-outline-neon:hover {
    background: rgba(0, 229, 255, 0.1);
    color: var(--neon-primary);
    box-shadow: var(--neon-glow);
}

.bg-neon { background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary)) !important; }
.bg-neon-subtle { background: rgba(0, 229, 255, 0.15) !important; color: var(--neon-primary) !important; }
.border-neon { border-color: var(--border-neon) !important; }
.bg-dark-card { background: var(--bg-card) !important; border: 1px solid var(--border-color); }

/* ---- Auth Pages ---- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-dark);
}

.auth-container {
    width: 100%;
    max-width: 440px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card);
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}
.auth-logo i {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    display: block;
    filter: drop-shadow(0 0 20px rgba(0, 229, 255, 0.5));
}
.auth-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.auth-tabs .nav-link {
    flex: 1;
    text-align: center;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.auth-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
    color: #fff;
    border-color: transparent;
}

.auth-form .form-control {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
}
.auth-form .form-control:focus {
    border-color: var(--neon-primary);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
    background: var(--bg-input);
    color: var(--text-primary);
}
.auth-form .form-floating label {
    color: var(--text-muted);
}

/* ---- App Layout ---- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
    width: 260px;
    min-height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.logo i {
    font-size: 1.75rem;
    filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.5));
}
.logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    list-style: none;
    padding: 1rem 0.75rem;
    flex: 1;
}
.sidebar-nav .nav-item { margin-bottom: 0.25rem; }
.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    text-decoration: none;
    font-weight: 500;
}
.sidebar-nav .nav-link:hover {
    background: rgba(0, 229, 255, 0.05);
    color: var(--text-primary);
}
.sidebar-nav .nav-link.active {
    background: rgba(0, 229, 255, 0.1);
    color: var(--neon-primary);
    border-left: 3px solid var(--neon-primary);
}
.sidebar-nav .nav-link i { font-size: 1.2rem; }

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.user-avatar-small i { font-size: 2rem; color: var(--neon-primary); }
.user-details { display: flex; flex-direction: column; }
.user-name { font-size: 0.875rem; font-weight: 600; }
.user-coins { font-size: 0.75rem; color: var(--neon-primary); }

/* ---- Main Content ---- */
.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.content-area {
    padding: 2rem;
    flex: 1;
}

.topbar {
    padding: 0.75rem 1rem;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.topbar-title { font-weight: 600; }

/* ---- Page Header ---- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.page-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ---- Agents Cards ---- */
.agent-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    height: 100%;
}
.agent-card:hover {
    border-color: var(--border-neon);
    box-shadow: var(--neon-glow);
    transform: translateY(-2px);
}
.agent-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.agent-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--neon-primary);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--avatar-neon-bg);
}
.agent-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.agent-name { font-weight: 600; margin-bottom: 0.25rem; }
.agent-role { font-size: 0.75rem; }
.agent-card-body { margin-bottom: 1rem; }
.agent-model {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.agent-card-actions {
    display: flex;
    gap: 0.5rem;
}

/* Avatar Picker */
.avatar-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.avatar-option {
    cursor: pointer;
}
.avatar-option input { display: none; }
.avatar-option img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    padding: 2px;
}
.avatar-option input:checked + img {
    border-color: var(--neon-primary);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}
.avatar-option:hover img {
    border-color: var(--neon-primary);
}

/* Agent Selector (in new topic modal) */
.agent-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.agent-select-card {
    cursor: pointer;
}
.agent-checkbox { display: none; }
.agent-select-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition);
    min-width: 100px;
    text-align: center;
}
.agent-checkbox:checked + .agent-select-inner {
    border-color: var(--neon-primary);
    background: var(--avatar-neon-bg);
    box-shadow: var(--neon-glow);
}
.agent-select-inner:hover {
    border-color: var(--border-neon);
}
.agent-select-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}
.agent-select-name { font-size: 0.8rem; font-weight: 600; }
.agent-select-role { font-size: 0.7rem; color: var(--text-muted); }

/* ---- Chat Layout ---- */
.chat-layout {
    display: flex;
    height: calc(100vh - 64px);
    margin: -2rem;
}

/* Topics Sidebar */
.topics-sidebar {
    width: 280px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    background: var(--bg-sidebar);
    flex-shrink: 0;
}
.topics-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.topics-header h5 { margin: 0; font-size: 0.95rem; }
.topics-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.topic-item {
    display: flex;
    align-items: center;
    border-radius: var(--radius-sm);
    margin-bottom: 2px;
    transition: var(--transition);
    position: relative;
}
.topic-item:hover { background: rgba(0, 229, 255, 0.05); }
.topic-item.active {
    background: rgba(0, 229, 255, 0.1);
    border-left: 3px solid var(--neon-primary);
}
.topic-link {
    flex: 1;
    padding: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.topic-title {
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.topic-meta { font-size: 0.7rem; color: var(--text-muted); margin-top: 2px; }

.topic-delete-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
    border-radius: 4px;
}
.topic-item:hover .topic-delete-btn { opacity: 1; }
.topic-delete-btn:hover { color: #ef4444; background: rgba(239, 68, 68, 0.1); }

.empty-topics {
    padding: 2rem 1rem;
    text-align: center;
}

/* Chat Area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-card);
}
.chat-header-info { flex: 1; }
.chat-header-info h5 { margin: 0; font-size: 0.95rem; }
.chat-agents-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.25rem;
}
.agent-badge-avatar {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    margin-right: 2px;
}

/* Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    display: flex;
    gap: 0.75rem;
    max-width: 85%;
    animation: fadeIn 0.4s ease-out;
}
.message-agent { align-self: flex-start; }
.message-user { align-self: flex-end; flex-direction: row-reverse; }
.message-system { align-self: center; max-width: 90%; }

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 2px solid var(--neon-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--avatar-neon-bg);
}
.message-avatar img { width: 100%; height: 100%; object-fit: cover; }
.message-avatar.user-avatar {
    border-color: var(--neon-secondary);
    background: var(--avatar-user-bg);
}
.message-avatar.user-avatar i { font-size: 1.5rem; color: var(--neon-secondary); }

.message-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
}
.message-user .message-content {
    background: var(--msg-user-bg);
    border-color: var(--msg-user-border);
}

.message-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}
.message-name { font-weight: 600; font-size: 0.85rem; }
.message-role { font-size: 0.7rem; }
.message-time { font-size: 0.7rem; color: var(--text-muted); margin-left: auto; }
.message-text {
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Markdown content in agent messages */
.message-text.markdown-body {
    white-space: normal;
}
.message-text.markdown-body p {
    margin: 0 0 0.5em 0;
}
.message-text.markdown-body p:last-child {
    margin-bottom: 0;
}
.message-text.markdown-body ul,
.message-text.markdown-body ol {
    margin: 0.3em 0 0.5em 0;
    padding-left: 1.4em;
}
.message-text.markdown-body li {
    margin-bottom: 0.2em;
}
.message-text.markdown-body h1,
.message-text.markdown-body h2,
.message-text.markdown-body h3,
.message-text.markdown-body h4 {
    margin: 0.6em 0 0.3em 0;
    font-size: 1em;
    font-weight: 600;
    color: var(--neon-primary);
}
.message-text.markdown-body h1 { font-size: 1.1em; }
.message-text.markdown-body h2 { font-size: 1.05em; }
.message-text.markdown-body strong {
    color: var(--text-primary);
    font-weight: 600;
}
.message-text.markdown-body code {
    background: var(--code-bg);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--neon-primary);
}
.message-text.markdown-body pre {
    background: var(--pre-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75em 1em;
    margin: 0.5em 0;
    overflow-x: auto;
}
.message-text.markdown-body pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}
.message-text.markdown-body blockquote {
    border-left: 3px solid var(--neon-primary);
    padding-left: 0.75em;
    margin: 0.5em 0;
    color: var(--text-secondary);
}
.message-text.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5em 0;
    font-size: 0.85em;
}
.message-text.markdown-body th,
.message-text.markdown-body td {
    border: 1px solid var(--border-color);
    padding: 0.4em 0.6em;
}
.message-text.markdown-body th {
    background: var(--table-th-bg);
    font-weight: 600;
}
.message-text.markdown-body a {
    color: var(--neon-primary);
    text-decoration: underline;
}
.message-text.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 0.75em 0;
}

.message-system .message-text {
    background: var(--msg-system-bg);
    border: 1px solid var(--border-neon);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--neon-primary);
    text-align: center;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1.5rem;
}
.typing-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--neon-primary);
}
.typing-avatar img { width: 100%; height: 100%; }
.typing-content {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.typing-dots {
    display: flex;
    gap: 3px;
}
.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--neon-primary);
    animation: typingDot 1.4s infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
    0%, 60%, 100% { opacity: 0.3; transform: scale(0.8); }
    30% { opacity: 1; transform: scale(1); }
}

/* Chat Input */
.chat-input-area {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
}
.chat-input-area .input-group {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.chat-input-area .input-group:focus-within {
    border-color: var(--neon-primary);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}
.chat-input-area textarea {
    background: transparent;
    border: none;
    color: var(--text-primary);
    resize: none;
    padding: 0.75rem 1rem;
    max-height: 150px;
}
.chat-input-area textarea:focus {
    box-shadow: none;
    background: transparent;
    color: var(--text-primary);
}
.chat-input-area .btn-neon {
    border-radius: 0;
    padding: 0.75rem 1.25rem;
}

.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}
.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}
.empty-state h4 { margin-bottom: 0.5rem; }

/* ---- Tariff / Balance ---- */
.balance-card {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(124, 77, 255, 0.1));
    border: 1px solid var(--border-neon);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.balance-icon i {
    font-size: 3rem;
    color: var(--neon-primary);
    filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.5));
}
.balance-info { display: flex; flex-direction: column; }
.balance-label { font-size: 0.8rem; color: var(--text-muted); }
.balance-amount {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.balance-unit { font-size: 0.85rem; color: var(--text-secondary); }

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 100%;
}
.info-card i { font-size: 2rem; color: var(--neon-secondary); }
.info-card div { display: flex; flex-direction: column; }
.info-label { font-size: 0.8rem; color: var(--text-muted); }
.info-value { font-size: 1.25rem; font-weight: 600; }

.package-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.package-card:hover {
    border-color: var(--border-neon);
    box-shadow: var(--neon-glow);
    transform: translateY(-3px);
}
.package-label {
    font-size: 0.8rem;
    color: var(--neon-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}
.package-coins {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.package-coins i { color: var(--neon-primary); }
.package-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}
.package-per-coin {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* ---- Settings Card ---- */
.settings-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    height: 100%;
}
.settings-card h5 {
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ---- Tables ---- */
.table-dark-custom {
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--border-color);
    color: var(--text-primary);
}
.table-dark-custom th {
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-neon);
}
.table-dark-custom td {
    font-size: 0.875rem;
    vertical-align: middle;
}

/* ---- Admin ---- */
.admin-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.admin-tabs .nav-link {
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}
.admin-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
    color: #fff;
    border-color: transparent;
}
.admin-tabs .nav-link:hover:not(.active) {
    border-color: var(--border-neon);
}

.admin-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.admin-chat-view {
    max-height: 600px;
    overflow-y: auto;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}
.admin-msg {
    margin-bottom: 1rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
}
.admin-msg-agent { background: var(--admin-msg-agent-bg); border-left: 3px solid var(--neon-primary); }
.admin-msg-user { background: var(--admin-msg-user-bg); border-left: 3px solid var(--neon-secondary); }
.admin-msg-system { background: var(--admin-msg-system-bg); border-left: 3px solid var(--neon-accent); }
.admin-msg-meta { font-size: 0.8rem; margin-bottom: 0.25rem; }
.admin-msg-text { font-size: 0.9rem; line-height: 1.5; }

/* ---- Form Controls (global overrides) ---- */
.form-control, .form-select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
}
.form-control:focus, .form-select:focus {
    background: var(--bg-input);
    color: var(--text-primary);
    border-color: var(--neon-primary);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}
.form-label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.form-select option { background: var(--bg-card); }

/* ---- Modal overrides ---- */
.modal-content.bg-dark-card .modal-header { background: var(--bg-sidebar); }
.modal-content.bg-dark-card .btn-close { filter: var(--btn-close-filter); }

/* ---- Alerts ---- */
.alert { border-radius: var(--radius-sm); }

/* ---- Animations ---- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease-out; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .chat-layout {
        flex-direction: column;
    }
    .topics-sidebar {
        width: 100%;
        height: auto;
        max-height: 300px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        display: none;
    }
    .topics-sidebar.open {
        display: flex;
    }
    .content-area { padding: 1rem; }
    .page-header h2 { font-size: 1.2rem; }
    .balance-amount { font-size: 2rem; }
    .message { max-width: 95%; }
}

/* ---- Theme Toggle ---- */
.theme-toggle-btn {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    width: 100%;
    justify-content: center;
}
.theme-toggle-btn:hover {
    border-color: var(--border-neon);
    color: var(--neon-primary);
    background: var(--avatar-neon-bg);
}
.theme-toggle-btn i { font-size: 1rem; }

/* Light theme specific overrides */
[data-theme="light"] .bg-dark-card {
    background: var(--bg-card) !important;
    border-color: var(--border-color);
}
[data-theme="light"] .bg-neon-subtle {
    background: rgba(0, 151, 167, 0.1) !important;
    color: var(--neon-primary) !important;
}
[data-theme="light"] .auth-logo i {
    filter: drop-shadow(0 0 12px rgba(0, 151, 167, 0.3));
}
[data-theme="light"] .logo i {
    filter: drop-shadow(0 0 8px rgba(0, 151, 167, 0.3));
}
[data-theme="light"] .sidebar {
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .sidebar-nav .nav-link:hover {
    background: rgba(0, 151, 167, 0.06);
}
[data-theme="light"] .sidebar-nav .nav-link.active {
    background: rgba(0, 151, 167, 0.1);
}
[data-theme="light"] .topic-item:hover {
    background: rgba(0, 151, 167, 0.05);
}
[data-theme="light"] .topic-item.active {
    background: rgba(0, 151, 167, 0.08);
}
[data-theme="light"] .btn-outline-neon:hover {
    background: rgba(0, 151, 167, 0.08);
}
[data-theme="light"] .balance-card {
    background: linear-gradient(135deg, rgba(0, 151, 167, 0.08), rgba(94, 53, 177, 0.08));
}
[data-theme="light"] .agent-card:hover {
    box-shadow: 0 4px 20px rgba(0, 151, 167, 0.12);
}
[data-theme="light"] .chat-input-area .input-group:focus-within {
    box-shadow: 0 0 0 3px rgba(0, 151, 167, 0.1);
}
[data-theme="light"] .auth-form .form-control:focus {
    box-shadow: 0 0 0 3px rgba(0, 151, 167, 0.1);
}
[data-theme="light"] .form-control:focus,
[data-theme="light"] .form-select:focus {
    box-shadow: 0 0 0 3px rgba(0, 151, 167, 0.1);
}
[data-theme="light"] .typing-avatar {
    border-color: var(--neon-primary);
}
[data-theme="light"] .table-dark-custom th {
    border-bottom-color: var(--border-neon);
}
[data-theme="light"] .chat-header {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .topics-sidebar {
    box-shadow: 1px 0 4px rgba(0, 0, 0, 0.05);
}

/* ---- List Group overrides ---- */
.list-group-item {
    border-color: var(--border-color);
    color: var(--text-primary);
}