/* ========== CSS 变量 ========== */
:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #1e2a3a;
    --bg-card-hover: #243447;
    --bg-input: #0f1923;
    --border-color: #2a3a4a;
    --text-primary: #e0e0e0;
    --text-secondary: #8899aa;
    --text-muted: #5a6a7a;
    --accent: #4fc3f7;
    --accent-hover: #29b6f6;
    --success: #66bb6a;
    --success-bg: rgba(102, 187, 106, 0.15);
    --danger: #ef5350;
    --danger-hover: #e53935;
    --danger-bg: rgba(239, 83, 80, 0.15);
    --warn: #ffa726;
    --warn-bg: rgba(255, 167, 38, 0.15);
    --info: #42a5f5;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --radius: 8px;
    --radius-sm: 4px;
    --transition: 0.2s ease;
}

/* ========== 全局重置 ========== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========== 顶部栏 ========== */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-left h1 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.connection-status {
    font-size: 0.8rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: var(--success-bg);
    color: var(--success);
    font-weight: 500;
}

.connection-status.disconnected {
    background: var(--danger-bg);
    color: var(--danger);
}

.header-right {
    display: flex;
    gap: 8px;
}

/* ========== 按钮 ========== */
.btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--accent);
    color: #111;
    border-color: var(--accent);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-success {
    background: var(--success);
    color: #111;
    border-color: var(--success);
    font-weight: 600;
}

.btn-success:hover {
    background: #57a85e;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
    font-weight: 600;
}

.btn-danger:hover {
    background: var(--danger-hover);
}

.btn-sm { padding: 5px 12px; font-size: 0.8rem; }
.btn-xs { padding: 3px 8px; font-size: 0.75rem; }

.btn-logout {
    color: var(--danger) !important;
    border-color: var(--danger) !important;
}

.btn-logout:hover {
    background: var(--danger-bg) !important;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ========== 主内容区 ========== */
.main {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.bot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ========== Bot 卡片 ========== */
.bot-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}

.bot-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.bot-card.online {
    border-left: 3px solid var(--success);
}

.bot-card.offline {
    border-left: 3px solid var(--danger);
}

.card-header {
    padding: 16px 20px 12px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.bot-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.bot-avatar.online { background: var(--success); }
.bot-avatar.offline { background: var(--text-muted); }

.bot-info {
    flex: 1;
    min-width: 0;
}

.bot-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.bot-username {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.bot-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.status-dot.offline {
    background: var(--danger);
}

.card-body {
    padding: 8px 20px 16px;
}

.card-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.card-meta span {
    margin-right: 14px;
}

.card-actions {
    padding: 0 20px 16px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.card-actions .btn {
    flex: 1;
    text-align: center;
}

/* Toggle 开关 */
.toggle-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.toggle-label {
    flex: 1;
}

.toggle-switch {
    position: relative;
    width: 40px;
    height: 22px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-input);
    border-radius: 22px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    left: 2px;
    bottom: 2px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--success-bg);
    border-color: var(--success);
}

.toggle-switch input:checked + .toggle-slider::before {
    background: var(--success);
    transform: translateX(18px);
}

/* ========== 日志面板 ========== */
.log-panel {
    border-top: 2px solid var(--border-color);
    background: var(--bg-secondary);
    max-height: 280px;
    display: flex;
    flex-direction: column;
}

.log-panel.collapsed {
    max-height: 0;
    border-top: none;
    overflow: hidden;
}

.log-header {
    padding: 10px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.log-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

.log-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.log-filter {
    padding: 3px 8px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.log-container {
    flex: 1;
    overflow-y: auto;
    padding: 12px 24px;
    font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
    font-size: 0.78rem;
    line-height: 1.6;
}

.log-empty {
    color: var(--text-muted);
    text-align: center;
    padding: 20px;
}

.log-line {
    padding: 2px 0;
    border-bottom: 1px solid rgba(255,255,255,0.02);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.log-line:hover {
    white-space: normal;
    overflow: visible;
}

.log-time {
    color: var(--text-muted);
    margin-right: 8px;
}

.log-source {
    font-weight: 600;
    margin-right: 8px;
    min-width: 60px;
    display: inline-block;
}

.log-level-info  .log-source { color: var(--info); }
.log-level-warn  .log-source { color: var(--warn); }
.log-level-error .log-source { color: var(--danger); }
.log-level-chat  .log-source { color: var(--success); }
.log-level-event .log-source { color: var(--accent); }

.log-level-warn  { background: var(--warn-bg); }
.log-level-error { background: var(--danger-bg); }

.log-text {
    color: var(--text-secondary);
}

/* ========== 模态弹窗 ========== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn 0.15s ease;
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    width: 90%;
    max-width: 480px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.modal-header {
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.btn-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.cmd-type-select {
    width: 100%;
    padding: 8px 12px;
    margin-bottom: 12px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.cmd-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    resize: vertical;
    font-family: inherit;
}

.cmd-input:focus, .cmd-type-select:focus {
    outline: none;
    border-color: var(--accent);
}

.modal-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.modal-actions .btn {
    flex: 1;
}

.cmd-result {
    margin-top: 12px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    display: none;
}

.cmd-result.success {
    display: block;
    background: var(--success-bg);
    color: var(--success);
}

.cmd-result.error {
    display: block;
    background: var(--danger-bg);
    color: var(--danger);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .header {
        padding: 10px 16px;
    }
    .header-left h1 {
        font-size: 1rem;
    }
    .main {
        padding: 16px;
    }
    .bot-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .log-panel {
        max-height: 200px;
    }
}

/* ========== 滚动条 ========== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}