/* Google button layout */
      .g_id_signin { margin:0; display:flex; justify-content:center; width:100%; filter:drop-shadow(0 12px 22px rgba(0,0,0,0.5)); }
        /* === ZentraCore Premium UI Override === */
        :root {
            --primary: #1b6cff;
            --primary-light: #5aa2ff;
            --primary-dark: #1442b8;
            --sidebar-width: 300px;
            --sidebar-bg: #0b1020;
            --sidebar-text: #e5e7eb;
            --sidebar-hover: rgba(255, 255, 255, 0.06);
            --sidebar-active: rgba(255, 255, 255, 0.12);
            --chat-bg: #f4f7fb;
            --message-bg: #ffffff;
            --user-message-bg: #edf2ff;
            --border-color: rgba(15, 23, 42, 0.12);
            --text-primary: #0f172a;
            --text-secondary: #64748b;
            --gradient: linear-gradient(135deg, #1b6cff 0%, #00c2ff 100%);
            --input-glow: 0 20px 60px rgba(15, 23, 42, 0.12);
            --input-glow-strong: 0 30px 70px rgba(27, 108, 255, 0.22);
            --input-border: rgba(15, 23, 42, 0.1);
            --input-sheen: linear-gradient(120deg, rgba(27, 108, 255, 0.18), rgba(0, 194, 255, 0.08), rgba(14, 165, 233, 0.12));
            --model-accent: #1b6cff;
            --model-accent-soft: rgba(27, 108, 255, 0.14);
            --model-accent-border: rgba(27, 108, 255, 0.35);
            --ragebait-color: #dc2626;
            --ragebait-soft: rgba(220, 38, 38, 0.12);
            --aether-base-color: var(--model-accent);
            --aether-pro-color: var(--model-accent);
            --vanta-color: var(--model-accent);
            --mnemox-color: var(--model-accent);
            --inova-color: var(--model-accent);
            --nerfedjerky-color: var(--model-accent);
            --nicholas-color: var(--model-accent);
            --logicengine-color: var(--model-accent);
            --imagica-color: var(--model-accent);
            --main-font: 'Poppins', 'Geist', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        }

        body {
            background: radial-gradient(120% 120% at 20% 10%, rgba(27, 108, 255, 0.08) 0%, rgba(244, 247, 251, 0.95) 45%, rgba(244, 247, 251, 1) 100%);
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            background:
                radial-gradient(500px 320px at 15% 10%, rgba(0, 194, 255, 0.18), transparent 60%),
                radial-gradient(520px 380px at 85% 0%, rgba(27, 108, 255, 0.16), transparent 60%),
                radial-gradient(420px 360px at 70% 80%, rgba(56, 189, 248, 0.12), transparent 60%);
            pointer-events: none;
            z-index: 0;
        }

        body.dark-mode {
            background: radial-gradient(120% 120% at 20% 10%, rgba(15, 23, 42, 0.9) 0%, rgba(6, 10, 20, 0.96) 55%, rgba(5, 7, 15, 1) 100%);
        }

        body.dark-mode::before {
            background:
                radial-gradient(520px 340px at 18% 12%, rgba(30, 64, 175, 0.22), transparent 62%),
                radial-gradient(560px 420px at 85% 2%, rgba(6, 182, 212, 0.12), transparent 62%),
                radial-gradient(460px 360px at 70% 82%, rgba(14, 116, 144, 0.16), transparent 62%);
        }

        .sidebar,
        .main-content,
        .chat-header,
        .input-container {
            position: relative;
            z-index: 1;
        }

        .sidebar {
            background: linear-gradient(180deg, rgba(11, 16, 32, 0.98) 0%, rgba(9, 13, 25, 0.98) 100%);
            border-right: 1px solid rgba(148, 163, 184, 0.18);
            box-shadow: 18px 0 40px rgba(2, 6, 23, 0.25);
        }

        .sidebar-header {
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        }

        .new-chat-btn {
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(27, 108, 255, 0.2), rgba(0, 194, 255, 0.14));
            border: 1px solid rgba(56, 189, 248, 0.4);
            box-shadow: 0 14px 30px rgba(15, 23, 42, 0.2);
        }

        .chat-header {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(148, 163, 184, 0.2);
            box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
        }

        .chat-title {
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .chat-container {
            background: transparent;
            padding-bottom: 12px;
        }

        .welcome-container {
            margin: 0 auto;
            max-width: 920px;
            padding: 32px 28px 20px;
            display: grid;
            gap: 18px;
            text-align: left;
            position: relative;
            z-index: 1;
            align-content: start;
            overflow: hidden;
        }

        .welcome-container::before {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.4));
            border: 1px solid rgba(148, 163, 184, 0.18);
            box-shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
            z-index: -1;
        }

        .welcome-hero {
            display: grid;
            gap: 10px;
        }

        .welcome-title {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 600;
            letter-spacing: -0.01em;
            color: var(--aether-base-color);
            background: none;
            -webkit-text-fill-color: initial;
        }

        .welcome-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .welcome-meta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 11px;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: rgba(100, 116, 139, 0.85);
        }

        .welcome-meta-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .welcome-model-row {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 6px 10px;
            border-radius: 999px;
            background: rgba(27, 108, 255, 0.08);
            border: 1px solid rgba(27, 108, 255, 0.18);
            color: rgba(51, 65, 85, 0.9);
            font-size: 12px;
            max-width: 100%;
        }

        .welcome-model-name {
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .welcome-model-desc {
            color: var(--text-secondary);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .welcome-actions {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
            gap: 12px;
        }

        .welcome-actions--tight {
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        }

        .welcome-actions-label {
            font-size: 11px;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: rgba(100, 116, 139, 0.85);
            font-weight: 600;
        }

        .welcome-action {
            border: 1px solid rgba(148, 163, 184, 0.22);
            background: rgba(255, 255, 255, 0.85);
            padding: 12px 14px;
            border-radius: 14px;
            text-align: left;
            display: grid;
            gap: 8px;
            transition: transform var(--transition-speed) var(--transition-easing), box-shadow var(--transition-speed) var(--transition-easing), border-color var(--transition-speed) var(--transition-easing);
        }

        .welcome-action:hover {
            transform: translateY(-2px);
            border-color: rgba(27, 108, 255, 0.35);
            box-shadow: 0 18px 40px rgba(27, 108, 255, 0.18);
        }

        .welcome-action-title {
            font-weight: 600;
            color: var(--text-primary);
        }

        .welcome-action-desc {
            font-size: 12px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .message {
            gap: 14px;
        }

        .message-text {
            border-radius: 18px;
            box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
            border: 1px solid rgba(148, 163, 184, 0.2);
        }

        .user-message .message-text {
            border-radius: 18px 18px 6px 18px;
            background: linear-gradient(135deg, rgba(27, 108, 255, 0.12), rgba(0, 194, 255, 0.08));
            border-color: rgba(27, 108, 255, 0.24);
        }

        .assistant-message .message-text {
            border-radius: 18px 18px 18px 6px;
        }

        .message-actions {
            opacity: 0;
            transform: translateY(6px);
            transition: opacity var(--transition-speed) var(--transition-easing), transform var(--transition-speed) var(--transition-easing);
        }

        .message:hover .message-actions {
            opacity: 1;
            transform: translateY(0);
        }

        .message-action-btn {
            border-radius: 10px;
            border: 1px solid rgba(148, 163, 184, 0.28);
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
        }

        .typing-cursor {
            animation: cursorPulse 0.9s infinite;
        }

        @keyframes cursorPulse {
            0%, 100% { opacity: 0.2; }
            50% { opacity: 1; }
        }

        .streaming-pending {
            position: relative;
            background: linear-gradient(90deg, rgba(148, 163, 184, 0.08), rgba(27, 108, 255, 0.2), rgba(148, 163, 184, 0.08));
            background-size: 200% 100%;
            animation: streamingShimmer 2s infinite linear;
            border-radius: 12px;
            padding: 12px 14px;
        }

        @keyframes streamingShimmer {
            0% { background-position: 0% 50%; }
            100% { background-position: 200% 50%; }
        }

        .ai-code-block {
            border-radius: 16px;
            border: 1px solid rgba(27, 108, 255, 0.28);
            box-shadow: 0 20px 50px rgba(7, 11, 23, 0.5);
        }

        .ai-code-header {
            background: rgba(12, 18, 34, 0.92);
        }

        .ai-code-actions {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .ai-copy-code,
        .ai-preview-code {
            border-radius: 999px;
            border: 1px solid rgba(59, 130, 246, 0.5);
            background: rgba(27, 108, 255, 0.18);
            padding: 6px 14px;
        }

        .ai-preview-code {
            color: var(--code-text);
        }

        .code-preview {
            border-top: 1px solid rgba(148, 163, 184, 0.18);
            background: #0b1220;
            color: #e2e8f0;
            padding: 16px;
        }

        .code-preview-frame {
            width: 100%;
            min-height: 200px;
            border: 1px solid rgba(148, 163, 184, 0.2);
            border-radius: 12px;
            background: #fff;
        }

        .code-header-actions {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .preview-btn {
            padding: 4px 10px;
            border-radius: 999px;
            border: 1px solid rgba(59, 130, 246, 0.4);
            background: rgba(27, 108, 255, 0.14);
            color: var(--code-text);
            font-size: 12px;
            font-weight: 500;
            transition: background var(--transition-speed) var(--transition-easing), transform var(--transition-speed) var(--transition-easing);
        }

        .preview-btn:hover {
            background: rgba(27, 108, 255, 0.28);
            transform: translateY(-1px);
        }

        .input-container {
            background: rgba(255, 255, 255, 0.86);
            border: 1px solid rgba(148, 163, 184, 0.18);
            border-radius: 22px;
            box-shadow: var(--input-glow);
            backdrop-filter: blur(16px);
        }

        .input-box {
            gap: 16px;
        }

        #user-input {
            background: rgba(248, 250, 252, 0.8);
            border-radius: 16px;
            border: 1px solid rgba(148, 163, 184, 0.2);
            padding: 16px 18px;
        }

        .model-indicator {
            background: rgba(27, 108, 255, 0.12);
            color: var(--primary);
            border-radius: 999px;
            border: 1px solid rgba(27, 108, 255, 0.2);
            font-weight: 600;
        }

        .model-selector {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 16px;
        }

        .model-option {
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid rgba(148, 163, 184, 0.2);
            border-radius: 18px;
            padding: 18px;
            box-shadow: 0 16px 30px rgba(15, 23, 42, 0.06);
            transition: transform var(--transition-speed) var(--transition-easing), box-shadow var(--transition-speed) var(--transition-easing), border-color var(--transition-speed) var(--transition-easing);
        }

        .model-option::before {
            display: none;
        }

        body:not(.dark-mode) .settings-card--models .model-option {
            background: rgba(255, 255, 255, 0.92);
            border-color: rgba(148, 163, 184, 0.22);
        }

        body.dark-mode .settings-card--models .model-option {
            background: rgba(15, 23, 42, 0.92);
            border-color: rgba(148, 163, 184, 0.22);
        }

        .model-option:hover {
            transform: translateY(-2px);
            border-color: rgba(27, 108, 255, 0.35);
            box-shadow: 0 22px 40px rgba(27, 108, 255, 0.16);
        }

        .model-option.active {
            border-color: var(--model-accent);
            background: linear-gradient(135deg, rgba(27, 108, 255, 0.12), rgba(0, 194, 255, 0.08)), #ffffff;
            box-shadow: 0 24px 60px rgba(27, 108, 255, 0.2);
        }

        .model-option[data-model="aether_base"].active,
        .model-option[data-model="aether_pro"].active,
        .model-option[data-model="vanta"].active,
        .model-option[data-model="mnemox"].active,
        .model-option[data-model="inova"].active,
        .model-option[data-model="logicengine_pro"].active,
        .model-option[data-model="nicholas_tech_life_support"].active,
        .model-option[data-model="nerfedjerky"].active,
        .model-option[data-model="imagica_vision"].active {
            border-color: var(--model-accent);
            background: linear-gradient(135deg, rgba(27, 108, 255, 0.12), rgba(0, 194, 255, 0.08)), #ffffff;
            box-shadow: 0 24px 60px rgba(27, 108, 255, 0.2);
        }

        .model-option[data-model="ragebait"].active {
            border-color: var(--ragebait-color);
            background: linear-gradient(135deg, rgba(220, 38, 38, 0.14), rgba(248, 113, 113, 0.08)), #ffffff;
            box-shadow: 0 24px 60px rgba(220, 38, 38, 0.2);
        }

        .model-badge,
        .model-badge.aether-base,
        .model-badge.aether-pro,
        .model-badge.vanta,
        .model-badge.mnemox,
        .model-badge.inova,
        .model-badge.nerfedjerky,
        .model-badge.nicholas,
        .model-badge.logicengine,
        .model-badge.imagica {
            background: rgba(27, 108, 255, 0.12);
            color: var(--primary);
            border: 1px solid rgba(27, 108, 255, 0.22);
            border-radius: 999px;
            padding: 4px 10px;
            font-weight: 600;
        }

        .model-option[data-model="ragebait"] .model-badge {
            background: var(--ragebait-soft);
            color: var(--ragebait-color);
            border-color: rgba(220, 38, 38, 0.4);
        }

        .model-feature-icon {
            color: var(--primary);
        }

        .model-radio {
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            border: 1.5px solid rgba(148, 163, 184, 0.6);
            background: rgba(255, 255, 255, 0.8);
            box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.8);
            margin-right: 14px;
            position: relative;
        }

        .model-radio:checked {
            border-color: var(--model-accent);
            background: var(--model-accent);
            box-shadow: 0 0 0 4px rgba(27, 108, 255, 0.2);
        }

        .model-option[data-model="ragebait"] .model-radio:checked {
            border-color: var(--ragebait-color);
            background: var(--ragebait-color);
            box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.2);
        }

        body.dark-mode {
            --chat-bg: #0b1220;
            --message-bg: #0f172a;
            --user-message-bg: #0b1c3a;
            --border-color: rgba(148, 163, 184, 0.2);
            --text-primary: #e2e8f0;
            --text-secondary: #94a3b8;
        }

        body.dark-mode .chat-header {
            background: rgba(12, 18, 34, 0.82);
            border-bottom: 1px solid rgba(148, 163, 184, 0.2);
        }

        body.dark-mode .welcome-container::before {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.86), rgba(15, 23, 42, 0.65));
            border-color: rgba(148, 163, 184, 0.2);
        }

        body.dark-mode .welcome-action,
        body.dark-mode .model-option {
            background: rgba(15, 23, 42, 0.9);
            border-color: rgba(148, 163, 184, 0.2);
        }

        body.dark-mode .input-container {
            background: rgba(15, 23, 42, 0.86);
        }

        body.dark-mode #user-input {
            background: rgba(15, 23, 42, 0.7);
            color: var(--text-primary);
        }

        @media (max-height: 800px) {
            .welcome-container {
                padding: 20px 22px 16px;
                gap: 12px;
            }

            .welcome-title {
                font-size: clamp(22px, 2.6vw, 30px);
            }

            .welcome-actions {
                grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
                gap: 10px;
            }
        }

        @media (max-width: 900px) {
            .chat-container {
                padding: 18px 16px 10px;
            }

            .welcome-container {
                max-width: 100%;
                min-height: auto;
                max-height: none;
                padding: 18px 14px 12px;
                gap: 10px;
                overflow: visible;
            }

            .welcome-title {
                font-size: clamp(22px, 6vw, 30px);
            }

            .welcome-model-row {
                flex-wrap: wrap;
                gap: 6px;
                padding: 6px 8px;
            }

            .welcome-model-desc {
                white-space: normal;
            }
        }

        @media (max-width: 600px) {
            .chat-container {
                padding: 12px 12px 8px;
            }

            .welcome-actions {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .welcome-action {
                padding: 10px 12px;
                gap: 6px;
            }

            .input-container {
                border-radius: 18px;
            }

            .input-tools {
                gap: 6px;
                flex-wrap: wrap;
            }

            .tool-btn,
            .submit-btn {
                width: 36px;
                height: 36px;
            }

            .chat-header {
                padding: 10px 12px;
            }
        }

        @media (max-width: 420px) {
            .welcome-actions {
                grid-template-columns: 1fr;
            }
        }

        /* Mobile layout hardening: keep chat scrollable and within viewport */
        @media (max-width: 768px) {
            html,
            body {
                height: 100dvh;
                min-height: 100dvh;
                overflow: hidden;
            }

            body {
                display: flex;
                flex-direction: column;
            }

            .main-content {
                height: 100dvh;
                min-height: 0;
                width: 100%;
                overflow: hidden;
                display: flex;
                flex-direction: column;
            }

            .chat-header {
                position: sticky;
                top: 0;
                z-index: 20;
            }

            .chat-container {
                flex: 1;
                min-height: 0;
                height: auto;
                max-height: none;
                overflow-y: auto;
                overflow-x: hidden;
                overscroll-behavior: contain;
                -webkit-overflow-scrolling: touch;
                padding-bottom: max(calc(var(--input-height-dynamic) + 40px), env(safe-area-inset-bottom));
                scroll-padding-bottom: max(calc(var(--input-height-dynamic) + 40px), env(safe-area-inset-bottom));
                width: 100%;
                touch-action: pan-y;
            }

            .message,
            .input-box,
            .welcome-container {
                max-width: 100%;
                width: 100%;
                margin-left: 0;
                margin-right: 0;
            }

            .input-container {
                position: fixed;
                left: 0;
                right: 0;
                bottom: 0;
                width: 100%;
            }

            .sidebar {
                height: var(--app-height);
                z-index: 1200;
                position: fixed;
                top: 0;
                left: 0;
                width: 85%;
                max-width: 300px;
                transform: translateX(-100%);
            }

            .sidebar.open {
                transform: translateX(0) !important;
            }

            .sidebar-overlay {
                z-index: 1100;
            }
        }
        :root {
            --sidebar-width: 308px;
            --sidebar-bg: #0f172a;
            --sidebar-text: #e2e8f0;
            --sidebar-hover: #1e293b;
            --sidebar-active: #334155;
            --chat-bg: #f8fafc;
            --message-bg: #ffffff;
            --border-color: #e2e8f0;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --user-message-bg: #f5f3ff;
            --gradient: linear-gradient(135deg, #6e41e2 0%, #4f46e5 100%);
        }

        body {
            background: var(--chat-bg);
        }

        .sidebar {
            background: radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.12), transparent 32%), 
                        radial-gradient(circle at 80% 0%, rgba(45, 212, 191, 0.14), transparent 34%),
                        var(--sidebar-bg);
            box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.06);
        }

        .sidebar::after {
            display: none;
        }

        .sidebar-header {
            padding: 24px 22px 14px;
            border-bottom: none;
            gap: 18px;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
        }

        .sidebar-brand-copy {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: 0;
            width: 100%;
            justify-content: center;
        }

        .logo-img {
            height: auto;
            width: 100%;
            max-width: 100%;
            object-fit: contain;
            flex-shrink: 0;
        }

        .new-chat-btn {
            width: 100%;
            padding: 0;
            border: none;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(45, 212, 191, 0.16));
            box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
            cursor: pointer;
            overflow: hidden;
            transition: transform var(--transition-speed) var(--transition-easing), box-shadow var(--transition-speed) var(--transition-easing), background var(--transition-speed) var(--transition-easing);
        }

        .new-chat-btn::before,
        .new-chat-btn::after {
            display: none;
        }

        .new-chat-btn-inner {
            justify-content: flex-start;
            gap: 16px;
            padding: 14px 16px;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(30, 41, 59, 0.86));
            color: #f8fafc;
            font-weight: 600;
            font-size: 15px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 18px;
        }

        .new-chat-icon {
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.24), rgba(45, 212, 191, 0.28));
            color: #f8fafc;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14);
        }

        .new-chat-label {
            letter-spacing: 0.01em;
        }

        .new-chat-btn:hover,
        .new-chat-btn:focus-visible {
            transform: translateY(-1px);
            box-shadow: 0 16px 34px rgba(15, 23, 42, 0.24);
        }

        .new-chat-btn:active {
            transform: translateY(0);
            box-shadow: 0 10px 22px rgba(15, 23, 42, 0.18);
        }

        .new-chat-btn:focus-visible {
            outline: none;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 16px;
            width: 100%;
            padding: 11px 8px;
            border: none;
            border-radius: 14px;
            background: transparent;
            color: rgba(242, 237, 230, 0.78);
            font-size: 15px;
            text-align: left;
            cursor: pointer;
            transition: background var(--transition-speed) var(--transition-easing), color var(--transition-speed) var(--transition-easing);
        }

        .sidebar-nav-item i {
            width: 24px;
            text-align: center;
            font-size: 18px;
        }

        .sidebar-nav-item:hover,
        .sidebar-nav-item.active {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .sidebar-recents {
            padding: 10px 22px 0;
        }

        .sidebar-section-label {
            font-size: 13px;
            color: rgba(242, 237, 230, 0.48);
            letter-spacing: 0.02em;
        }

        .conversation-list {
            padding: 8px 18px 18px;
        }

        .conversation-item {
            margin: 0;
            padding: 10px 12px;
            gap: 10px;
            border: none;
            border-left: none;
            border-radius: 12px;
            background: transparent;
            box-shadow: none;
        }

        .conversation-item:hover,
        .conversation-item.active {
            background: rgba(255, 255, 255, 0.05);
            border: none;
            box-shadow: none;
        }

        .conversation-item svg {
            flex-shrink: 0;
            color: rgba(242, 237, 230, 0.55);
        }

        .conversation-item.active svg {
            color: #fff;
        }

        .conversation-title {
            flex: 1;
            min-width: 0;
            color: rgba(242, 237, 230, 0.88);
        }

        .conversation-title > span:first-child {
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .conversation-meta {
            display: block;
            margin-top: 4px;
            font-size: 12px;
            color: rgba(242, 237, 230, 0.46);
        }

        .conversation-actions {
            right: 8px;
        }

        .sidebar-footer {
            padding: 16px 18px 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(0, 0, 0, 0.08);
        }

        .user-profile {
            padding: 10px 12px;
            border-radius: 16px;
        }

        .user-avatar {
            width: 44px;
            height: 44px;
            background: #d7d2c7;
            color: #2f2b25;
            font-size: 22px;
        }

        .user-name {
            color: var(--sidebar-text);
            font-size: 15px;
        }

        .user-email {
            color: rgba(226, 232, 240, 0.56);
            font-size: 13px;
        }

        .main-content {
            background: var(--chat-bg);
        }

        .chat-header {
            background: var(--message-bg);
            border-bottom: 1px solid var(--border-color);
            box-shadow: none;
        }

        .chat-title,
        .credit-label,
        .credit-reset,
        .credit-count,
        #credit-count {
            color: var(--text-primary);
            background: none;
            -webkit-text-fill-color: initial;
        }

        .chat-container {
            background: var(--chat-bg);
        }

        .main-content.section-mode .chat-header,
        .main-content.section-mode .input-container,
        .main-content.section-mode .model-indicator {
            display: none;
        }

        .main-content.section-mode .chat-container {
            padding: 28px 38px 38px;
        }

        .workspace-page {
            width: min(1120px, 100%);
            margin: 0 auto;
            color: #f2ede6;
        }

        .workspace-page-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            margin-bottom: 26px;
        }

        .workspace-page-title {
            font-family: Georgia, "Times New Roman", serif;
            font-size: 34px;
            font-weight: 600;
            color: #f3eee7;
        }

        .workspace-page-subtitle {
            margin-top: 8px;
            color: rgba(242, 237, 230, 0.58);
            font-size: 15px;
        }

        .workspace-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 18px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 18px;
            background: #f5efe6;
            color: #2a2722;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
        }

        .workspace-action-btn.secondary {
            background: transparent;
            color: #f2ede6;
        }

        .workspace-search-shell {
            position: relative;
            margin-bottom: 26px;
        }

        .workspace-search-shell i {
            position: absolute;
            left: 22px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(242, 237, 230, 0.5);
            font-size: 22px;
        }

        .workspace-search-input {
            width: 100%;
            padding: 22px 24px 22px 62px;
            border-radius: 24px;
            border: 2px solid rgba(57, 144, 255, 0.95);
            background: #34312c;
            color: #f2ede6;
            font-size: 20px;
            outline: none;
            box-shadow: 0 0 0 3px rgba(57, 144, 255, 0.12);
        }

        .workspace-search-input::placeholder {
            color: rgba(242, 237, 230, 0.42);
        }

        .workspace-inline-note {
            margin: 0 0 18px 22px;
            color: rgba(242, 237, 230, 0.58);
            font-size: 15px;
        }

        .workspace-inline-note button {
            background: none;
            border: none;
            color: #69aaf8;
            font-size: inherit;
            cursor: pointer;
            padding: 0;
            margin-left: 10px;
        }

        .workspace-list {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .workspace-list-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 24px 18px;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            background: transparent;
            text-align: left;
            cursor: pointer;
            color: inherit;
        }

        .workspace-list-item-title {
            font-size: 18px;
            color: #f2ede6;
        }

        .workspace-list-item-meta {
            margin-top: 6px;
            font-size: 14px;
            color: rgba(242, 237, 230, 0.48);
        }

        .workspace-list-item:hover .workspace-list-item-title {
            color: #fff;
        }

        .workspace-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 16px;
        }

        .workspace-card {
            padding: 22px;
            border-radius: 22px;
            background: #312e29;
            border: 1px solid rgba(255, 255, 255, 0.08);
            text-align: left;
        }

        .workspace-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #f2ede6;
            margin: 0 0 8px;
        }

        .workspace-card p {
            color: rgba(242, 237, 230, 0.62);
            font-size: 14px;
            line-height: 1.6;
        }

        .workspace-card-actions {
            display: flex;
            gap: 10px;
            margin-top: 18px;
        }

        .project-composer {
            display: grid;
            gap: 14px;
            margin-bottom: 22px;
            padding: 22px;
            border-radius: 22px;
            background: #312e29;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .project-composer-title {
            font-size: 18px;
            font-weight: 600;
            color: #f2ede6;
        }

        .project-composer-copy {
            font-size: 14px;
            color: rgba(242, 237, 230, 0.62);
        }

        .project-field {
            display: grid;
            gap: 8px;
        }

        .project-field label {
            font-size: 13px;
            color: rgba(242, 237, 230, 0.72);
        }

        .project-input,
        .project-textarea {
            width: 100%;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            background: rgba(15, 23, 42, 0.32);
            color: #f2ede6;
            padding: 14px 16px;
            font-size: 15px;
            outline: none;
            resize: vertical;
        }

        .project-input:focus,
        .project-textarea:focus {
            border-color: rgba(96, 165, 250, 0.45);
            box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.14);
        }

        .project-textarea {
            min-height: 120px;
            line-height: 1.6;
        }

        .customize-stack {
            display: grid;
            gap: 16px;
        }

        .customize-panel {
            padding: 22px;
            border-radius: 22px;
            background: #312e29;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .customize-panel-title {
            font-size: 18px;
            font-weight: 600;
            color: #f2ede6;
            margin: 0 0 8px;
        }

        .customize-panel-copy {
            font-size: 14px;
            line-height: 1.6;
            color: rgba(242, 237, 230, 0.62);
            margin-bottom: 16px;
        }

        .customize-button-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .customize-button {
            padding: 10px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(15, 23, 42, 0.24);
            color: rgba(242, 237, 230, 0.82);
            font-size: 14px;
            cursor: pointer;
        }

        .customize-button.active {
            background: #f5efe6;
            color: #221f1b;
            border-color: transparent;
        }

        .customize-textarea {
            width: 100%;
            min-height: 132px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            background: rgba(15, 23, 42, 0.32);
            color: #f2ede6;
            padding: 14px 16px;
            font-size: 15px;
            line-height: 1.6;
            resize: vertical;
            outline: none;
        }

        .customize-textarea:focus {
            border-color: rgba(96, 165, 250, 0.45);
            box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.14);
        }

        .workspace-chip-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 22px;
        }

        .workspace-chip {
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: #2f2b26;
            color: rgba(242, 237, 230, 0.7);
            font-size: 13px;
            cursor: pointer;
        }

        .workspace-chip.is-active {
            background: #f5efe6;
            color: #221f1b;
            border-color: transparent;
        }

        .artifact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 14px;
        }

        .artifact-card {
            padding: 18px 18px 16px;
            border-radius: 18px;
            background: #302d28;
            border: 1px solid rgba(255, 255, 255, 0.08);
            width: 100%;
            text-align: left;
            cursor: pointer;
        }

        .artifact-card-title {
            color: #f2ede6;
            font-size: 16px;
            font-weight: 500;
        }

        .artifact-card-meta {
            margin-top: 8px;
            color: rgba(242, 237, 230, 0.5);
            font-size: 13px;
        }

        body:not(.dark-mode) .sidebar {
            background: radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.12), transparent 32%), 
                        radial-gradient(circle at 80% 0%, rgba(45, 212, 191, 0.14), transparent 34%),
                        #0f172a;
            box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.06);
        }

        body:not(.dark-mode) .new-chat-btn,
        body:not(.dark-mode) .new-chat-icon,
        body:not(.dark-mode) .sidebar-nav-item:hover,
        body:not(.dark-mode) .sidebar-nav-item.active,
        body:not(.dark-mode) .conversation-item:hover,
        body:not(.dark-mode) .conversation-item.active,
        body:not(.dark-mode) .sidebar-footer {
            background: rgba(255, 255, 255, 0.06);
        }

        body:not(.dark-mode) .sidebar-nav-item,
        body:not(.dark-mode) .sidebar-nav-item span,
        body:not(.dark-mode) .sidebar-section-label,
        body:not(.dark-mode) .conversation-item svg,
        body:not(.dark-mode) .conversation-meta,
        body:not(.dark-mode) .user-email {
            color: rgba(226, 232, 240, 0.64);
        }

        body:not(.dark-mode) .new-chat-btn-inner,
        body:not(.dark-mode) .new-chat-label,
        body:not(.dark-mode) .conversation-title,
        body:not(.dark-mode) .conversation-title > span:first-child,
        body:not(.dark-mode) .user-name {
            color: #e2e8f0;
        }

        body:not(.dark-mode) .new-chat-btn {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.24), rgba(45, 212, 191, 0.18));
            box-shadow: 0 12px 26px rgba(15, 23, 42, 0.22);
        }

        body:not(.dark-mode) .new-chat-btn-inner {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.96), rgba(30, 41, 59, 0.92));
        }

        body:not(.dark-mode) .sidebar-nav-item:hover,
        body:not(.dark-mode) .sidebar-nav-item:hover span,
        body:not(.dark-mode) .sidebar-nav-item.active,
        body:not(.dark-mode) .sidebar-nav-item.active span {
            color: #f8fafc;
        }

        body:not(.dark-mode) .workspace-page,
        body:not(.dark-mode) .workspace-page-title,
        body:not(.dark-mode) .workspace-list-item-title,
        body:not(.dark-mode) .artifact-card-title {
            color: #17202c;
        }

        body:not(.dark-mode) .chat-title,
        body:not(.dark-mode) .credit-label,
        body:not(.dark-mode) .credit-reset,
        body:not(.dark-mode) #credit-count {
            color: #1e293b;
        }

        body:not(.dark-mode) .main-content,
        body:not(.dark-mode) .chat-container {
            background: #f8fafc;
        }

        body:not(.dark-mode) .chat-header {
            background: #ffffff;
        }

        body:not(.dark-mode) .chat-header {
            border-bottom-color: rgba(15, 23, 42, 0.08);
        }

        body:not(.dark-mode) .workspace-page-subtitle,
        body:not(.dark-mode) .workspace-inline-note,
        body:not(.dark-mode) .workspace-list-item-meta,
        body:not(.dark-mode) .artifact-card-meta,
        body:not(.dark-mode) .project-composer-copy,
        body:not(.dark-mode) .project-field label,
        body:not(.dark-mode) .customize-panel-copy,
        body:not(.dark-mode) .workspace-card p,
        body:not(.dark-mode) .workspace-empty {
            color: rgba(23, 32, 44, 0.62);
        }

        body:not(.dark-mode) .workspace-inline-note button,
        body:not(.dark-mode) .workspace-list-item:hover .workspace-list-item-title,
        body:not(.dark-mode) .workspace-card-actions .workspace-action-btn.secondary,
        body:not(.dark-mode) .project-field label,
        body:not(.dark-mode) .project-composer-copy,
        body:not(.dark-mode) .project-composer-title,
        body:not(.dark-mode) .customize-panel-title,
        body:not(.dark-mode) .workspace-card h3 {
            color: #1e293b;
        }

        body:not(.dark-mode) .workspace-search-input,
        body:not(.dark-mode) .project-composer,
        body:not(.dark-mode) .project-input,
        body:not(.dark-mode) .project-textarea,
        body:not(.dark-mode) .customize-panel,
        body:not(.dark-mode) .customize-textarea,
        body:not(.dark-mode) .workspace-card,
        body:not(.dark-mode) .artifact-card,
        body:not(.dark-mode) .workspace-empty,
        body:not(.dark-mode) .message-text,
        body:not(.dark-mode) .input-box,
        body:not(.dark-mode) .welcome-action,
        body:not(.dark-mode) .prompt-suggestion {
            background: #ffffff;
            border-color: rgba(15, 23, 42, 0.08);
            color: #17202c;
        }

        body:not(.dark-mode) .project-composer-title {
            color: #17202c;
        }

        body:not(.dark-mode) #user-input,
        body:not(.dark-mode) .project-input,
        body:not(.dark-mode) .project-textarea,
        body:not(.dark-mode) .customize-textarea {
            color: #17202c;
        }

        body:not(.dark-mode) #user-input::placeholder,
        body:not(.dark-mode) .project-input::placeholder,
        body:not(.dark-mode) .project-textarea::placeholder,
        body:not(.dark-mode) .customize-textarea::placeholder,
        body:not(.dark-mode) .workspace-search-input::placeholder {
            color: rgba(23, 32, 44, 0.45);
        }

        body:not(.dark-mode) #user-input {
            color: #17202c;
        }

        body:not(.dark-mode) .workspace-search-input {
            border-color: rgba(15, 23, 42, 0.14);
            box-shadow: none;
        }

        body:not(.dark-mode) .customize-button {
            background: #ffffff;
            border-color: rgba(15, 23, 42, 0.08);
            color: #1e293b;
        }

        body:not(.dark-mode) .customize-button.active {
            background: #17202c;
            color: #f8fafc;
        }

        body:not(.dark-mode) .workspace-chip {
            background: #ffffff;
            border-color: rgba(15, 23, 42, 0.08);
            color: rgba(23, 32, 44, 0.68);
        }

        body:not(.dark-mode) .workspace-chip.is-active,
        body:not(.dark-mode) .workspace-action-btn {
            background: #17202c;
            color: #f8fafc;
        }

        body:not(.dark-mode) .workspace-action-btn.secondary {
            background: transparent;
            color: #1e293b;
            border-color: rgba(15, 23, 42, 0.16);
        }

        body:not(.dark-mode) .user-avatar {
            background: #17202c;
            color: #f8fafc;
        }

        body.dark-mode .sidebar {
            background: #1d2026;
            box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.06);
        }

        body.dark-mode .chat-header {
            border-bottom-color: rgba(255, 255, 255, 0.08);
        }

        body.dark-mode .new-chat-icon,
        body.dark-mode .sidebar-nav-item:hover,
        body.dark-mode .sidebar-nav-item.active,
        body.dark-mode .conversation-item:hover,
        body.dark-mode .conversation-item.active,
        body.dark-mode .sidebar-footer {
            background: rgba(255, 255, 255, 0.05);
        }

        body.dark-mode .sidebar-nav-item,
        body.dark-mode .sidebar-section-label,
        body.dark-mode .conversation-item svg,
        body.dark-mode .conversation-meta,
        body.dark-mode .user-email,
        body.dark-mode .workspace-page-subtitle,
        body.dark-mode .workspace-inline-note,
        body.dark-mode .workspace-list-item-meta,
        body.dark-mode .artifact-card-meta,
        body.dark-mode .project-composer-copy,
        body.dark-mode .project-field label,
        body.dark-mode .customize-panel-copy,
        body.dark-mode .workspace-card p,
        body.dark-mode .workspace-empty {
            color: rgba(243, 244, 246, 0.64);
        }

        body.dark-mode .new-chat-btn-inner,
        body.dark-mode .conversation-title,
        body.dark-mode .user-name,
        body.dark-mode .chat-title,
        body.dark-mode .credit-label,
        body.dark-mode .credit-reset,
        body.dark-mode #credit-count,
        body.dark-mode .workspace-page,
        body.dark-mode .workspace-page-title,
        body.dark-mode .workspace-list-item-title,
        body.dark-mode .artifact-card-title,
        body.dark-mode .project-composer-title,
        body.dark-mode .customize-panel-title,
        body.dark-mode .workspace-card h3 {
            color: #f3f4f6;
        }

        body.dark-mode .workspace-search-input,
        body.dark-mode .project-composer,
        body.dark-mode .project-input,
        body.dark-mode .project-textarea,
        body.dark-mode .customize-panel,
        body.dark-mode .customize-textarea,
        body.dark-mode .workspace-card,
        body.dark-mode .artifact-card,
        body.dark-mode .workspace-empty,
        body.dark-mode .message-text,
        body.dark-mode .input-box,
        body.dark-mode .welcome-action,
        body.dark-mode .prompt-suggestion,
        body.dark-mode .workspace-chip {
            background: #2b2f36;
            border-color: rgba(255, 255, 255, 0.08);
            color: #f3f4f6;
        }

        body.dark-mode #user-input,
        body.dark-mode .project-input,
        body.dark-mode .project-textarea,
        body.dark-mode .customize-textarea,
        body.dark-mode .workspace-search-input {
            color: #f3f4f6;
        }

        body.dark-mode #user-input::placeholder,
        body.dark-mode .project-input::placeholder,
        body.dark-mode .project-textarea::placeholder,
        body.dark-mode .customize-textarea::placeholder,
        body.dark-mode .workspace-search-input::placeholder {
            color: rgba(243, 244, 246, 0.45);
        }

        body.dark-mode .customize-button {
            background: rgba(15, 23, 42, 0.32);
            border-color: rgba(255, 255, 255, 0.08);
            color: #f3f4f6;
        }

        body.dark-mode .customize-button.active {
            background: #f3f4f6;
            color: #1f2937;
        }

        body.dark-mode .workspace-action-btn.secondary {
            color: #f3f4f6;
        }

        body.dark-mode .workspace-chip.is-active {
            background: #f3f4f6;
            color: #1f2937;
        }

        .workspace-empty {
            padding: 28px 24px;
            border-radius: 22px;
            background: #302d28;
            border: 1px dashed rgba(255, 255, 255, 0.12);
            color: rgba(242, 237, 230, 0.62);
        }

        .message-text,
        .input-box,
        .welcome-action,
        .prompt-suggestion {
            background: #302d28;
            border-color: rgba(255, 255, 255, 0.08);
            color: #f2ede6;
        }

        #user-input {
            color: #f2ede6;
        }

        #user-input::placeholder {
            color: rgba(242, 237, 230, 0.45);
        }

        @media (max-width: 768px) {
            .main-content.section-mode .chat-container {
                padding: 20px 18px 28px;
            }

            .workspace-page-header {
                flex-direction: column;
                align-items: flex-start;
            }

            .workspace-page-title {
                font-size: 28px;
            }

            .workspace-search-input {
                font-size: 18px;
                padding: 18px 18px 18px 54px;
            }
        }