/* SieveManager - Modern Premium Dark Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --bg-primary: #090d16;
    --bg-secondary: #0f172a;
    --bg-tertiary: #1e293b;
    --bg-card: rgba(17, 24, 39, 0.75);
    --bg-card-hover: rgba(30, 41, 59, 0.85);
    --bg-glass: rgba(15, 23, 42, 0.65);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(99, 102, 241, 0.35);
    --border-active: #6366f1;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-indigo: #6366f1;
    --accent-indigo-hover: #4f46e5;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-rose: #f43f5e;
    --accent-violet: #8b5cf6;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px -5px rgba(99, 102, 241, 0.25);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

/* App Shell Layout */
.app-container {
    display: flex;
    width: 100vw;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 40;
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.logo-badge {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 18px;
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.4);
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.account-selector-box {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(0, 0, 0, 0.2);
}

.account-selector-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 600;
}

.account-dropdown-select {
    width: 100%;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    outline: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.account-dropdown-select:hover, .account-dropdown-select:focus {
    border-color: var(--border-accent);
}

.nav-section {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-category {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 700;
    padding: 12px 12px 6px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.04);
}

.nav-link.active {
    color: white;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.2), rgba(99, 102, 241, 0.05));
    border-left: 3px solid var(--accent-indigo);
    font-weight: 600;
}

.nav-link svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.nav-badge {
    margin-left: auto;
    padding: 2px 7px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
    background: var(--accent-indigo);
    color: white;
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    margin-left: 280px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    max-width: calc(100vw - 280px);
    width: calc(100% - 280px);
    box-sizing: border-box;
}

.topbar {
    height: 64px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 30;
}

.page-title-box {
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
}

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

.status-dot.online {
    background-color: var(--accent-emerald);
    box-shadow: 0 0 8px var(--accent-emerald);
}

.status-dot.warning {
    background-color: var(--accent-amber);
    box-shadow: 0 0 8px var(--accent-amber);
}

.status-dot.offline {
    background-color: var(--accent-rose);
}

.content-body {
    padding: 32px;
    flex: 1;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* Glass Cards & Grids */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.grid-cols-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (max-width: 1200px) {
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-3 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { width: 72px; }
    .sidebar .logo-text, .sidebar .account-selector-box, .sidebar .nav-category, .sidebar .nav-link span, .sidebar-footer { display: none; }
    .main-wrapper { margin-left: 72px; }
    .grid-cols-4, .grid-cols-2 { grid-template-columns: 1fr; }
}

/* Metric Cards */
.metric-card {
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-indigo), var(--accent-cyan));
}

.metric-title {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.metric-value {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 12px 0 4px;
    color: var(--text-primary);
}

.metric-desc {
    font-size: 12.5px;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 16px;
    font-size: 13.5px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-fast);
    text-decoration: none;
    line-height: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-indigo), #4f46e5);
    color: white;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5, #4338ca);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-subtle);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.16);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-emerald), #059669);
    color: white;
    box-shadow: 0 2px 10px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-rose), #e11d48);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #e11d48, #be123c);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 11.5px;
    font-weight: 600;
}

.badge-indigo { background: rgba(99, 102, 241, 0.15); color: #818cf8; border: 1px solid rgba(99, 102, 241, 0.3); }
.badge-emerald { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-rose { background: rgba(244, 63, 94, 0.15); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }
.badge-neutral { background: rgba(255, 255, 255, 0.06); color: var(--text-secondary); border: 1px solid var(--border-subtle); }

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    font-size: 14px;
    color: var(--text-primary);
    outline: none;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-text {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 5px;
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.modern-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.modern-table th {
    text-align: left;
    padding: 12px 16px;
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-subtle);
}

.modern-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.modern-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
}

/* Sieve Code styling */
.sieve-code-block {
    font-family: 'JetBrains Mono', monospace;
    background-color: #050811;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
    font-size: 13px;
    line-height: 1.6;
    color: #e2e8f0;
    overflow-x: auto;
    position: relative;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
}

/* Rule Card */
.rule-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    transition: var(--transition-fast);
    margin-bottom: 12px;
}

.rule-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    background: var(--bg-card-hover);
}

.rule-card.disabled-rule {
    opacity: 0.6;
}

.rule-info {
    flex: 1;
}

.rule-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.rule-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.rule-flow {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* AI Suggestion Card */
.suggestion-card {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px -2px rgba(99, 102, 241, 0.15);
    transition: var(--transition-normal);
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.suggestion-card:hover {
    border-color: var(--accent-indigo);
    box-shadow: 0 8px 30px -4px rgba(99, 102, 241, 0.25);
}

.suggestion-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 14px;
    gap: 16px;
    min-width: 0;
    flex-wrap: wrap;
}

.suggestion-header > div:first-child {
    flex: 1;
    min-width: 0;
}

.suggestion-rationale {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
    word-break: break-word;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 640px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 28px;
    box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 0, 0, 0.6);
    transform: translateY(20px) scale(0.98);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

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

/* Toast Messages */
.toast-container {
    position: fixed;
    top: 20px;
    right: 24px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13.5px;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.success { border-left: 4px solid var(--accent-emerald); }
.toast.error { border-left: 4px solid var(--accent-rose); }
.toast.info { border-left: 4px solid var(--accent-indigo); }
.toast.warning { border-left: 4px solid var(--accent-amber); }

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* AI Chat Copilot Styles */
.chat-layout-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    height: calc(100vh - 128px);
}

.chat-sessions-sidebar {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    padding: 16px;
}

.chat-session-item {
    display: block;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    border: 1px solid transparent;
    transition: var(--transition-fast);
}

.chat-session-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.chat-session-item.active {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.4);
}

.chat-main-area {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    padding: 0;
    background: rgba(15, 23, 42, 0.85);
}

.chat-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.2);
}

.prompt-chips-bar {
    padding: 10px 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(0, 0, 0, 0.1);
}

.prompt-chip {
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 9999px;
    color: var(--text-secondary);
    font-size: 11.5px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition-fast);
}

.prompt-chip:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--accent-indigo);
    color: white;
}

.chat-messages-stream {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.chat-bubble-row {
    display: flex;
    gap: 12px;
    max-width: 85%;
}

.chat-bubble-row.user-row {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-bubble-row.assistant-row {
    align-self: flex-start;
}

.chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-cyan));
    color: white;
    font-weight: 700;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

.chat-bubble {
    padding: 14px 18px;
    border-radius: var(--radius-lg);
    font-size: 13.5px;
    line-height: 1.6;
    word-break: break-word;
}

.user-bubble {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.35), rgba(79, 70, 229, 0.45));
    border: 1px solid rgba(99, 102, 241, 0.4);
    color: #f8fafc;
    border-bottom-right-radius: 2px;
}

.assistant-bubble {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    color: #e2e8f0;
    border-bottom-left-radius: 2px;
    box-shadow: var(--shadow-sm);
}

.chat-proposal-card {
    margin-top: 14px;
    padding: 14px 16px;
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(99, 102, 241, 0.35);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.chat-proposal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.chat-proposal-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
}

.chat-proposal-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: rgba(99, 102, 241, 0.2);
    color: #818cf8;
    font-size: 13px;
}

.chat-rule-diff-summary {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
}

.diff-summary-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
}

.diff-summary-row.added-row {
    background: rgba(16, 185, 129, 0.08);
    border-left: 3px solid #10b981;
}

.diff-summary-row.removed-row {
    background: rgba(244, 63, 94, 0.08);
    border-left: 3px solid #f43f5e;
}

.diff-tag {
    font-weight: 700;
    white-space: nowrap;
}

.diff-tag.add-tag { color: #34d399; }
.diff-tag.del-tag { color: #fb7185; }

.diff-tag-names {
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    word-break: break-word;
}

.chat-diff-details {
    margin-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 8px;
}

.chat-diff-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    font-weight: 600;
    color: #818cf8;
    user-select: none;
    padding: 4px 0;
    list-style: none;
}

.chat-diff-toggle::-webkit-details-marker {
    display: none;
}

.chat-diff-toggle:hover {
    color: #a5b4fc;
}

.chat-diff-box {
    margin-top: 12px;
    padding: 12px 14px;
    background: #030712;
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    overflow-x: auto;
}

.diff-pre {
    margin: 0;
    white-space: pre;
    line-height: 1.5;
    font-size: 11px;
}

.diff-add { color: #34d399; background: rgba(16, 185, 129, 0.1); display: block; }
.diff-del { color: #fb7185; background: rgba(244, 63, 94, 0.1); display: block; }
.diff-ctx { color: #94a3b8; display: block; }

.chat-input-bar {
    padding: 16px 24px;
    border-top: 1px solid var(--border-subtle);
    background: rgba(0, 0, 0, 0.3);
}