:root{--font-stack:"Poppins",-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Oxygen","Ubuntu","Cantarell","Fira Sans","Droid Sans","Helvetica Neue","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji",sans-serif;--font-weight-light:300;--font-weight-regular:400;--font-weight-bold:600;--color-primary:#03aeed;--color-secondary:#132683;--color-tertiary:#09092e;--color-light:#eff5f9;--color-light-bg:#f8fafc;--color-border:#ebeeef;--color-text:#242424;--color-text-grey:#7d8aa2;--color-green:#05c985;--color-red:#ee423d;--color-cta:var(--color-primary);--color-cta-hover:#09a0d9;--border-radius:6px;--border-radius-large:14px;--color-bg-gradient:linear-gradient(256.68deg,var(--color-primary) -52.89%,var(--color-secondary) 41.59%);--color-bg-gradient-light:linear-gradient(90deg,var(--color-light-bg) 0%,var(--color-light) 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1.5rem}.app-header,.header-left{align-items:center;display:flex}.header-left{gap:1rem}.logo{align-items:center;background:var(--color-bg-gradient);border-radius:10px;box-shadow:0 4px 15px #03aeed4d;display:flex;height:40px;justify-content:center;width:40px}.header-info h1{color:var(--color-tertiary);font-size:1.5rem;font-weight:700;margin:0}.status{align-items:center;display:flex;gap:.5rem;margin-top:.25rem}.status-dot{border-radius:50%;box-shadow:0 0 0 2px #fffc;height:8px;width:8px}.status-text{color:#6b7280;font-size:.875rem;font-weight:500}.header-actions{display:flex;gap:.5rem}.icon-button{align-items:center;background:#0000;border:1px solid #e5e7eb;border-radius:8px;color:#6b7280;cursor:pointer;display:flex;justify-content:center;padding:.5rem;transition:all .2s ease}.icon-button:hover{background:#f3f4f6;border-color:#d1d5db;color:#374151}.main-content{overflow:hidden}.main-content,.welcome-screen{display:flex;flex:1 1;flex-direction:column}.welcome-screen{margin:0 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#03aeed59;transform:translateY(-2px)}.mode-button:disabled{box-shadow:none;cursor:not-allowed;opacity:.6}.start-button{background:var(--color-cta);border:none;border-radius:12px;box-shadow:0 4px 15px #03aeed40;color:#fff;cursor:pointer;font-size:1.125rem;font-weight:600;padding:1rem 2rem;transition:all .2s ease}.start-button:hover:not(:disabled){background:var(--color-cta-hover);box-shadow:0 6px 20px #03aeed4d;transform:translateY(-2px)}.start-button:disabled{cursor:not-allowed;opacity:.6}.error-message{color:var(--color-red);font-size:.875rem;margin-top:1rem}.chat-container{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2;border-radius:20px;box-shadow:0 10px 40px #0000001a;display:flex;flex:1 1;flex-direction:column;margin:1rem;overflow:hidden}.messages-container{flex:1 1;overflow-y:auto;padding:1.5rem;scroll-behavior:smooth}.messages-container::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-track{background:#f1f5f9;border-radius:3px}.messages-container::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}.messages-container::-webkit-scrollbar-thumb:hover{background:#94a3b8}.message{align-items:flex-start;display:flex;margin-bottom:1.5rem}.message.user{flex-direction:row-reverse}.message-avatar{align-items:center;border-radius:50%;display:flex;flex-shrink:0;height:36px;justify-content:center;margin:0 .75rem;width:36px}.message.user .message-avatar{background:var(--color-bg-gradient);box-shadow:0 2px 8px #03aeed4d;color:#fff}.message.assistant .message-avatar{background:#f3f4f6;border:2px solid #e5e7eb;color:#6b7280}.message-content{flex:1 1;max-width:70%}.message-bubble{border-radius:18px;box-shadow:0 2px 8px #0000001a;padding:1rem 1.25rem;position:relative}.message.user 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