:root{--primary: #2563EB;--primary-light: #60A5FA;--primary-dark: #1E40AF;--secondary: #F59E0B;--secondary-light: #FBBF24;--secondary-dark: #D97706;--bg-app: #F8FAFC;--bg-surface: #FFFFFF;--bg-chat-user: #2563EB;--bg-chat-ai: #F1F5F9;--text-main: #0F172A;--text-secondary: #64748B;--text-inverse: #FFFFFF;--border-color: #E2E8F0;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--font-heading: "Outfit", sans-serif;--font-body: "Inter", sans-serif;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background-color:var(--bg-app);color:var(--text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.2}button{font-family:var(--font-body)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.app-container{display:flex;flex-direction:column;height:100vh;width:100%;overflow:hidden;background-color:var(--bg-app)}.landing-container{display:flex;flex-direction:column;height:100vh;overflow-y:auto;padding:2rem;background:linear-gradient(135deg,#f8fafc,#e2e8f0)}.landing-content{max-width:1200px;width:100%;margin:0 auto;background:var(--bg-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);padding:3rem;display:flex;flex-direction:column;gap:2rem;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.landing-header{text-align:center}.landing-title{font-size:2.5rem;font-weight:800;color:var(--primary-dark);margin-bottom:1rem;background:linear-gradient(to right,var(--primary-dark),var(--primary));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.landing-authors{font-size:1rem;color:var(--text-secondary);margin-bottom:1.5rem}.landing-authors a{color:var(--primary);text-decoration:none;font-weight:500;transition:color .2s}.landing-authors a:hover{color:var(--primary-dark);text-decoration:underline}.pub-button{display:inline-flex;align-items:center;padding:.75rem 1.5rem;background:var(--primary);color:#fff;text-decoration:none;border-radius:var(--radius-full);font-weight:600;box-shadow:var(--shadow-md);transition:all .2s}.pub-button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.abstract-section{padding:1.5rem;background:var(--bg-app);border-radius:var(--radius-lg);border:1px solid var(--border-color)}.abstract-text{font-size:1rem;line-height:1.7;color:var(--text-secondary);margin-bottom:1rem}.abstract-text strong{color:var(--text-main);font-weight:600}.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin:2rem 0}.comparison-card{padding:2rem;border-radius:var(--radius-lg);border:1px solid transparent;transition:transform .2s}.comparison-card:hover{transform:translateY(-4px)}.card-baseline{background:#eff6ff;border-color:#bfdbfe}.card-experimental{background:#fff7ed;border-color:#fed7aa}.card-title{font-size:1.5rem;font-weight:700;margin-bottom:1rem;text-align:center}.card-baseline .card-title{color:var(--primary-dark)}.card-experimental .card-title{color:var(--secondary-dark)}.card-desc{text-align:center;color:var(--text-secondary);line-height:1.6}.input-section{max-width:500px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:1.5rem}.input-group label{display:block;font-weight:600;margin-bottom:.5rem;color:var(--text-main)}.input-group .helper-text{font-size:.875rem;color:var(--text-secondary);margin-bottom:.5rem}.styled-input{width:100%;padding:.875rem 1rem;border:2px solid var(--border-color);border-radius:var(--radius-md);font-size:1rem;transition:all .2s;font-family:var(--font-body)}.styled-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.start-button{width:100%;padding:1rem;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:1.125rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:var(--shadow-md)}.start-button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.chat-layout{display:flex;height:100%;gap:1.5rem;padding:1.5rem;max-width:1600px;margin:0 auto;width:100%}.chat-column{flex:1;display:flex;flex-direction:column;background:var(--bg-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);overflow:hidden;border:1px solid var(--border-color)}.chat-header{padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color);background:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-baseline{background:#eff6ff}.header-experimental{background:#fff7ed}.back-button{padding:.5rem 1rem;background:#fff;border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;font-weight:500;transition:all .2s}.back-button:hover{background:var(--bg-app);color:var(--text-main)}.chat-title{font-size:1.125rem;font-weight:700;margin:0}.title-baseline{color:var(--primary-dark)}.title-experimental{color:var(--secondary-dark)}.chat-messages{flex:1;padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:1rem;background:var(--bg-surface)}.message-wrapper{display:flex;flex-direction:column;max-width:85%;animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-wrapper.user{align-self:flex-end;align-items:flex-end}.message-wrapper.ai{align-self:flex-start;align-items:flex-start}.message-sender{font-size:.75rem;color:var(--text-secondary);margin-bottom:.25rem;font-weight:600}.message-bubble{padding:.875rem 1.25rem;border-radius:var(--radius-lg);font-size:.9375rem;line-height:1.5;box-shadow:var(--shadow-sm);white-space:pre-line;word-wrap:break-word}.message-wrapper.user .message-bubble{background:var(--primary);color:#fff;border-bottom-right-radius:2px}.message-wrapper.ai .message-bubble{background:var(--bg-chat-ai);color:var(--text-main);border-bottom-left-radius:2px}.chat-input-area{padding:1.25rem;background:var(--bg-surface);border-top:1px solid var(--border-color)}@media (max-width: 768px){.landing-container{padding:1rem}.landing-content{padding:1.5rem}.landing-title{font-size:1.75rem}.comparison-grid{grid-template-columns:1fr;gap:1rem}.chat-layout{flex-direction:column;padding:1rem;gap:1rem}.chat-column{height:50vh}}.user-input-container{display:flex;align-items:center;gap:1rem;width:100%}.custom-textarea{flex:1;border-radius:var(--radius-md)!important;border:1px solid var(--border-color)!important;font-family:var(--font-body)!important;font-size:1rem!important;padding:.75rem!important;resize:none!important}.custom-textarea:focus{border-color:var(--primary)!important;box-shadow:0 0 0 2px #2563eb1a!important}.send-button{height:60px!important;padding:0 1.5rem!important;font-size:1rem!important;font-weight:600!important;border-radius:var(--radius-md)!important;background-color:var(--primary)!important;border-color:var(--primary)!important;box-shadow:var(--shadow-md)!important}.send-button:hover{background-color:var(--primary-dark)!important;border-color:var(--primary-dark)!important;transform:translateY(-1px)}@media (max-width: 768px){.user-input-container{flex-direction:column;gap:.5rem}.send-button{width:100%!important;height:44px!important}}