@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#fff;--bg-secondary:#f6f9f7;--bg-tertiary:#fff;--bg-sidebar:#0d3020;--bg-hover:#eef3f0;--bg-active:#e6f2ea;--bg-input:#fff;--bg-message-user:#eef3f0;--bg-message-assistant:transparent;--bg-code:#f4f7f5;--bg-tooltip:#12432c;--bg-modal-overlay:#0d302073;--text-primary:#16241c;--text-secondary:#45564d;--text-tertiary:#77877d;--text-placeholder:#9aa8a0;--text-inverse:#fff;--border-primary:#d7e1db;--border-secondary:#e6ece8;--border-input:#bccabf;--border-focus:var(--brand-green);--accent-green:#1f9e57;--accent-green-hover:#17803f;--accent-purple:#ab68ff;--accent-blue:#19c37d;--accent-red:#ef4146;--brand-green:#2ea35a;--brand-green-dark:#17803f;--sidebar-gradient:linear-gradient(180deg, #14432c 0%, #0b2c1c 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.conversation-item.active,.sidebar .sidebar-footer-btn:hover{background:var(--sidebar-hover);color:var(--sidebar-text-strong)}.sidebar .conversation-item.active{background:var(--sidebar-active)}.sidebar .conversation-item:after{background:linear-gradient(to right, transparent, var(--sidebar-solid))}.sidebar .conversation-item:hover:after,.sidebar .conversation-item.active:after{background:linear-gradient(90deg,#0000,#143c28)}.sidebar .conversation-action-btn{color:#c7dcd099}.sidebar .conversation-action-btn:hover{color:#ff7b7b;background:#ffffff1f}.sidebar .sidebar-footer{border-top:1px solid #ffffff14}.sidebar.collapsed{opacity:0;width:0;min-width:0;overflow:hidden;transform:translate(-100%)}.sidebar-header{height:var(--header-height);flex-shrink:0;justify-content:space-between;align-items:center;padding:8px 12px;display:flex}.sidebar-toggle-btn{width:36px;height:36px;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:background 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(width<=480px){.model-selector{font-size:14px}.suggestion-card{padding:12px}.chat-mode-bar{flex-wrap:wrap}}.chat-mode-bar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.chat-mode-toggle{background:var(--bg-secondary);border:1px solid var(--border-secondary);border-radius:var(--radius-full);padding:3px;display:inline-flex}.chat-mode-btn{color:var(--text-secondary);font-size:13px;font-weight:500;font-family:var(--font-primary);border-radius:var(--radius-full);cursor:pointer;transition:background var(--transition-fast), color var(--transition-fast);background:0 0;border:none;padding:6px 14px}.chat-mode-btn:hover{color:var(--text-primary)}.chat-mode-btn.active{background:var(--brand-green);color:#fff}.rag-status{color:var(--text-tertiary);align-items:center;gap:6px;font-size:12px;display:flex}.rag-status-dot{background:var(--text-tertiary);border-radius:50%;width:8px;height:8px}.rag-status-ready 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