/* ========================================
               BASE STYLES
               ======================================== */

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

            html, body {
                overflow-x: hidden;
            }

            body {
                font-family:
                    "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
                background: var(--surface-base);
                color: var(--text-primary);
                min-height: 100vh;
                line-height: 1.5;
                -webkit-font-smoothing: antialiased;
            }

            /* Scrollbar styling */
            ::-webkit-scrollbar {
                width: 6px;
                height: 6px;
            }
            ::-webkit-scrollbar-track {
                background: var(--scrollbar-track);
            }
            ::-webkit-scrollbar-thumb {
                background: var(--scrollbar-thumb);
                border-radius: 3px;
            }
            ::-webkit-scrollbar-thumb:hover {
                background: var(--text-secondary);
            }

            /* ========================================
               COMPONENTS
               ======================================== */

            /* Card */
            .card {
                background: var(--surface-1);
                border: 1px solid var(--border-default);
                border-radius: var(--radius-lg);
            }

            .card-elevated {
                background: var(--surface-2);
            }

            /* Buttons */
            .btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                gap: var(--space-2);
                padding: var(--space-2) var(--space-4);
                border-radius: var(--radius-md);
                font-size: 14px;
                font-weight: 500;
                cursor: pointer;
                border: none;
                transition: all var(--transition-fast);
            }

            .btn-primary {
                background: var(--brand-red);
                color: white;
            }
            .btn-primary:hover {
                background: var(--brand-red-hover);
            }

            .btn-ghost {
                background: transparent;
                color: var(--text-secondary);
                border: 1px solid var(--border-default);
            }
            .btn-ghost:hover {
                background: var(--surface-2);
                color: var(--text-primary);
                border-color: var(--border-strong);
            }

            .btn-icon {
                padding: var(--space-2);
                background: transparent;
                color: var(--text-secondary);
                border: none;
                border-radius: var(--radius-md);
            }
            .btn-icon:hover {
                background: var(--surface-2);
                color: var(--text-primary);
            }

            /* Voice Input Button */
            .voice-btn {
                padding: var(--space-2);
                background: transparent;
                color: var(--text-secondary);
                border: none;
                border-radius: var(--radius-md);
                cursor: pointer;
                transition: all 0.2s ease;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .voice-btn:hover {
                background: var(--surface-2);
                color: var(--text-primary);
            }
            .voice-btn.listening {
                background: rgba(239, 68, 68, 0.15);
                color: #ef4444;
                animation: pulse-voice 1.5s ease-in-out infinite;
            }
            .voice-btn.processing {
                color: var(--brand-primary);
            }
            .voice-btn:disabled {
                opacity: 0.5;
                cursor: not-allowed;
            }
            @keyframes pulse-voice {
                0%, 100% {
                    transform: scale(1);
                    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
                }
                50% {
                    transform: scale(1.05);
                    box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
                }
            }
            .voice-btn svg {
                width: 20px;
                height: 20px;
            }
            /* Voice not supported tooltip */
            .voice-unsupported {
                font-size: 11px;
                color: var(--text-muted);
                padding: 4px 8px;
            }
            /* Voice auto-send toggle */
            .voice-auto-send-toggle {
                font-size: 10px;
                padding: 2px 6px;
                background: var(--surface-2);
                color: var(--text-muted);
                border: 1px solid var(--border-default);
                border-radius: 10px;
                cursor: pointer;
                transition: all 0.2s ease;
                white-space: nowrap;
            }
            .voice-auto-send-toggle:hover {
                background: var(--surface-3);
                color: var(--text-secondary);
            }
            .voice-auto-send-toggle.active {
                background: rgba(34, 197, 94, 0.15);
                color: #22c55e;
                border-color: rgba(34, 197, 94, 0.3);
            }
            .voice-controls {
                display: flex;
                align-items: center;
                gap: 4px;
            }

            /* Inputs */
            .input {
                width: 100%;
                padding: var(--space-2) var(--space-3);
                background: var(--control-bg);
                border: 1px solid var(--control-border);
                border-radius: var(--radius-md);
                color: var(--text-primary);
                font-size: 14px;
                transition: border-color var(--transition-fast);
            }
            .input::placeholder {
                color: var(--text-muted);
            }
            .input:focus {
                outline: none;
                border-color: var(--brand-red);
                box-shadow: 0 0 0 3px var(--control-focus);
            }

            /* Badge */
            .badge {
                display: inline-flex;
                align-items: center;
                padding: 2px var(--space-2);
                border-radius: var(--radius-full);
                font-size: 11px;
                font-weight: 500;
            }
            .badge-default {
                background: var(--surface-3);
                color: var(--text-secondary);
            }
            .badge-success {
                background: var(--success-muted);
                color: var(--success);
            }
            .badge-warning {
                background: var(--warning-muted);
                color: var(--warning);
            }
            .badge-error {
                background: var(--error-muted);
                color: var(--error);
            }

            /* Status dot */
            .status-dot {
                width: 8px;
                height: 8px;
                border-radius: 50%;
            }
            .status-dot.success {
                background: var(--success);
            }
            .status-dot.warning {
                background: var(--warning);
            }
            .status-dot.error {
                background: var(--error);
            }
            .status-dot.idle {
                background: var(--text-muted);
            }
            .status-dot.pulse {
                animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
            }
            @keyframes pulse {
                0%, 100% {
                    opacity: 1;
                }
                50% {
                    opacity: 0.5;
                }
            }

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

            @keyframes fadeOut {
                from {
                    opacity: 1;
                }
                to {
                    opacity: 0;
                    transform: translateY(-10px);
                }
            }

            /* Section heading */
            .section-title {
                display: flex;
                align-items: center;
                gap: var(--space-2);
                font-size: 15px;
                font-weight: 600;
                color: var(--text-primary);
                margin-bottom: var(--space-4);
            }
            .section-title svg {
                width: 18px;
                height: 18px;
                color: var(--brand-red);
            }

            /* ========================================
               LAYOUT
               ======================================== */

            .container {
                max-width: 100%;
                margin: 0 auto;
                padding: 0 var(--space-6);
                box-sizing: border-box;
            }

            /* Header */
            .header {
                background: var(--surface-1);
                border-bottom: 1px solid var(--border-default);
                height: 60px; /* Match sidebar-logo height */
                display: flex;
                align-items: center;
                position: sticky;
                top: 0;
                z-index: 100;
            }

            .header-inner {
                display: flex;
                align-items: center;
                justify-content: space-between;
                width: 100%;
            }

            .logo {
                font-size: 20px;
                font-weight: 700;
                color: var(--text-primary);
                letter-spacing: -0.02em;
            }

            .header-status {
                display: flex;
                align-items: center;
                gap: var(--space-6);
            }

            .status-chip {
                display: flex;
                align-items: center;
                gap: var(--space-2);
                padding: var(--space-2) var(--space-3);
                background: var(--surface-2);
                border-radius: var(--radius-md);
                font-size: 13px;
                font-weight: 500;
            }

            .header-meta {
                display: flex;
                align-items: center;
                gap: var(--space-4);
                font-size: 13px;
                color: var(--text-secondary);
            }
            .header-meta span {
                color: var(--text-primary);
            }

            /* Header dropdown selectors */
            .header-select {
                background: var(--surface-2);
                border: 1px solid var(--border-default);
                border-radius: var(--radius-sm);
                color: var(--text-primary);
                font-size: 12px;
                padding: 2px 4px;
                margin-left: 4px;
                cursor: pointer;
                transition: border-color 0.2s;
            }

            .header-select:hover {
                border-color: var(--brand-red);
            }

            .header-select:focus {
                outline: none;
                border-color: var(--brand-red);
                box-shadow: 0 0 0 2px rgba(188, 32, 38, 0.2);
            }

            /* Theme toggle */
            .theme-toggle {
                display: flex;
                align-items: center;
                gap: var(--space-2);
                padding: var(--space-2);
                background: var(--surface-2);
                border: 1px solid var(--border-default);
                border-radius: var(--radius-md);
                cursor: pointer;
            }
            .theme-toggle:hover {
                border-color: var(--border-strong);
            }
            .theme-toggle svg {
                width: 18px;
                height: 18px;
                color: var(--text-secondary);
            }
            .theme-toggle:hover svg {
                color: var(--text-primary);
            }

            /* Main content */
            .main {
                padding: var(--space-4) 0;
            }

            /* Dashboard page doesn't use .main padding (has fixed layout) */
            #page-dashboard .container {
                padding: 0;
            }

            /* Grid layouts */
            .grid-2 {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-6);
                max-width: 100%;
            }
            .grid-3 {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: var(--space-4);
            }
            .grid-4 {
                display: grid;
                grid-template-columns: repeat(4, 1fr);
                gap: var(--space-4);
            }

            @media (max-width: 1024px) {
                .grid-2 {
                    grid-template-columns: 1fr;
                }
                .grid-4 {
                    grid-template-columns: repeat(2, 1fr);
                }
            }
            @media (max-width: 768px) {
                .grid-3 {
                    grid-template-columns: 1fr;
                }
                .grid-4 {
                    grid-template-columns: 1fr;
                }
            }

            /* Section spacing */
            .section {
                margin-bottom: var(--space-8);
            }

            /* ========================================