:root{--bg-color:#fff;--text-color:#333;--primary:#9d1b1b;--accent:#80df06;--surface:#f9f9f9;--border:#e0e0e0;--input-bg:#fff;--chat-user-bg:var(--primary);--chat-user-text:#fff;--chat-ai-bg:var(--surface);--chat-ai-text:var(--text-color);--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f}[data-theme=dark]{--bg-color:#1e132b;--text-color:#f0f0f0;--primary:#b82b2b;--accent:#80df06;--surface:#2a1b3d;--border:#3d2a58;--input-bg:#2a1b3d;--chat-user-bg:#4a212b;--chat-user-text:#fff;--chat-ai-bg:var(--surface);--chat-ai-text:var(--text-color);--shadow:0 4px 6px -1px #0000004d, 0 2px 4px -1px #0003}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);flex-direction:column;height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;transition:background-color .3s,color .3s;display:flex}.header{background-color:var(--primary);color:#fff;justify-content:space-between;align-items:center;padding:1rem 2rem;transition:background-color .3s;display:flex;box-shadow:0 4px 6px #0000001a}[data-theme=dark] .header{background-color:#341624;border-bottom:1px solid #ffffff0d;box-shadow:0 4px 10px #0006}.header-logo-title{align-items:center;gap:1rem;display:flex}.header-logo{filter:drop-shadow(0 2px 5px #0006);border-radius:8px;width:auto;height:48px}[data-theme=dark] .header-logo{filter:drop-shadow(0 0 8px #fff3)}.header-title{flex-direction:column;display:flex}.header-title h1{color:#fff;margin-bottom:.2rem;font-size:1.5rem;font-weight:700}.header-title p{letter-spacing:1px;color:var(--accent);text-transform:uppercase;font-size:.85rem;font-weight:600}.header-btn{color:#fff;cursor:pointer;background:#ffffff1a;border:1px solid #fff3;border-radius:20px;justify-content:center;align-items:center;gap:.5rem;height:38px;padding:0 1.25rem;font-size:.9rem;font-weight:600;transition:all .2s;display:flex}.header-btn:hover{background:#fff3}.header-btn.accent{background-color:var(--accent);color:#1a1a1a;border-color:var(--accent)}.header-btn.accent:hover{background-color:#8ff20b;transform:translateY(-1px)}.main-container{flex-direction:column;flex:1;width:100%;max-width:900px;margin:0 auto;padding:1rem;display:flex;overflow:hidden}.chat-window{scroll-behavior:smooth;flex-direction:column;flex:1;gap:1rem;padding:1rem;display:flex;overflow-y:auto}.message-wrapper{width:100%;display:flex}.message-wrapper.user{justify-content:flex-end}.message-wrapper.ai{justify-content:flex-start}.message{max-width:80%;box-shadow:var(--shadow);border-radius:16px;padding:1rem 1.25rem;font-size:1rem;line-height:1.5;animation:.3s forwards fadeIn}.message.user{background-color:var(--chat-user-bg);color:var(--chat-user-text);border-bottom-right-radius:4px}.message.ai{background-color:var(--chat-ai-bg);color:var(--chat-ai-text);border:1px solid var(--border);border-bottom-left-radius:4px}.message p{margin-bottom:.75rem}.message p:last-child{margin-bottom:0}.message a{color:var(--accent);text-decoration:underline}.input-container{background-color:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;gap:.75rem;margin-top:1rem;padding:1rem;display:flex}.chat-input{background-color:var(--input-bg);color:var(--text-color);border:1px solid var(--border);resize:none;border-radius:8px;outline:none;flex:1;min-height:48px;max-height:150px;padding:.75rem 1rem;font-family:inherit;font-size:1rem;transition:border-color .2s;overflow-y:auto}.chat-input:focus{border-color:var(--primary)}.send-button{background-color:var(--accent);color:#1a1a1a;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;padding:0 1.25rem;font-weight:700;transition:background-color .2s,transform .1s,box-shadow .2s,color .2s;display:flex;box-shadow:0 2px 4px #80df064d}.send-button:hover:not(:disabled){background-color:#8ff20b;box-shadow:0 4px 8px #80df0666}.send-button:active:not(:disabled){transform:scale(.96)}.send-button:disabled{color:#a0a0a0;cursor:not-allowed;box-shadow:none;background-color:#e0e0e0}[data-theme=dark] .send-button:disabled{color:#6a5785;background-color:#3d2a58}.message-actions{gap:.5rem;margin-top:.75rem;display:flex}.user-actions{justify-content:flex-end}.ai-actions{justify-content:flex-start}.copy-button{border:1px solid var(--border);color:var(--text-color);cursor:pointer;opacity:.8;background:#0000000d;border-radius:6px;justify-content:center;align-items:center;padding:.4rem;transition:all .2s;display:flex}[data-theme=dark] .copy-button{background:#ffffff0d}.copy-button:hover{opacity:1;background:var(--bg-color);border-color:var(--primary);color:var(--primary)}.message.user .copy-button{color:#fff;background:#ffffff1a;border-color:#ffffff4d}.message.user .copy-button:hover{color:#fff;background:#ffffff40;border-color:#fff}.loading-dots{gap:.3rem;padding:.5rem;display:flex}.dot{background-color:var(--text-color);opacity:.6;border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite both bounce}.dot:first-child{animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}*{scrollbar-width:thin;scrollbar-color:#0003 transparent}[data-theme=dark] *{scrollbar-color:#ffffff26 transparent}::-webkit-scrollbar{width:6px;height:6px}.chat-window::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}.chat-window::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background-color:#0003;border-radius:10px}.chat-window::-webkit-scrollbar-thumb{background-color:#0003;border-radius:10px}::-webkit-scrollbar-thumb:hover{background-color:#0006}.chat-window::-webkit-scrollbar-thumb:hover{background-color:#0006}[data-theme=dark] ::-webkit-scrollbar-thumb{background-color:#ffffff26}[data-theme=dark] .chat-window::-webkit-scrollbar-thumb{background-color:#ffffff26}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background-color:#ffffff4d}[data-theme=dark] .chat-window::-webkit-scrollbar-thumb:hover{background-color:#ffffff4d}.message.ai pre{background-color:#0000001a;border-radius:8px;margin:.5rem 0;padding:1rem;overflow-x:auto}[data-theme=dark] .message.ai pre{background-color:#0000004d}.message.ai code{background-color:#0000000d;border-radius:4px;padding:.2rem .4rem;font-family:monospace}[data-theme=dark] .message.ai code{background-color:#0003}.auth-page{background-color:var(--bg-color);width:100vw;height:100vh;color:var(--text-color);display:flex}.auth-left{background-color:var(--primary);color:#fff;text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:2rem;display:flex}.auth-left-logo{filter:drop-shadow(0 4px 10px #00000080);border-radius:12px;width:auto;height:120px;margin-bottom:1.5rem}.auth-left h1{margin-bottom:.5rem;font-size:2.5rem;font-weight:800}.auth-left p{letter-spacing:2px;color:var(--accent);text-transform:uppercase;font-size:1.2rem;font-weight:600}.auth-right{background-color:var(--bg-color);flex:1;justify-content:center;align-items:center;padding:2rem;display:flex}.auth-card{background-color:var(--surface);width:100%;max-width:400px;box-shadow:var(--shadow);border:1px solid var(--border);border-radius:16px;padding:2.5rem}.auth-card h2{color:var(--text-color);text-align:center;margin-bottom:1.5rem;font-size:1.8rem}.auth-input-group{flex-direction:column;gap:.5rem;margin-bottom:1.25rem;display:flex}.auth-input-group label{color:var(--text-color);font-size:.9rem;font-weight:600}.auth-input{border:1px solid var(--border);background-color:var(--input-bg);width:100%;color:var(--text-color);border-radius:8px;outline:none;padding:.85rem 1rem;font-size:1rem;transition:border-color .2s}.auth-input:focus{border-color:var(--primary)}.auth-button{background-color:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:.5rem;padding:.85rem;font-size:1.1rem;font-weight:700;transition:all .2s}.auth-button:hover{background-color:#8a1515}.auth-google-btn{width:100%;color:var(--text-color);border:1px solid var(--border);cursor:pointer;background-color:#0000;border-radius:8px;justify-content:center;align-items:center;gap:.75rem;margin-top:1rem;padding:.85rem;font-size:1rem;font-weight:600;transition:all .2s;display:flex}.auth-google-btn:hover{background-color:#0000000d}[data-theme=dark] .auth-google-btn:hover{background-color:#ffffff0d}.auth-links{text-align:center;flex-direction:column;gap:.5rem;margin-top:1.5rem;font-size:.9rem;display:flex}.auth-links a{color:var(--primary);font-weight:600;text-decoration:none}.auth-links a:hover{text-decoration:underline}.auth-error{color:#ff4d4d;text-align:center;background:#ff4d4d1a;border:1px solid #ff4d4d33;border-radius:4px;margin-bottom:1rem;padding:.5rem;font-size:.85rem}.auth-success{color:#80df06;text-align:center;background:#80df061a;border:1px solid #80df0633;border-radius:4px;margin-bottom:1rem;padding:.5rem;font-size:.85rem}.password-strength-bar-container{background-color:#ddd;border-radius:2px;width:100%;height:4px;margin-top:.5rem;overflow:hidden}[data-theme=dark] .password-strength-bar-container{background-color:#444}.password-strength-bar{height:100%;transition:all .3s}.password-strength-bar.weak{background-color:#ff4d4d;width:33%}.password-strength-bar.medium{background-color:orange;width:66%}.password-strength-bar.strong{background-color:#80df06;width:100%}.password-strength-text{margin-top:.25rem;font-size:.8rem;font-weight:600}.password-strength-text.weak{color:#ff4d4d}.password-strength-text.medium{color:orange}.password-strength-text.strong{color:#80df06}.mobile-header{display:none}.desktop-header{display:flex}.hamburger-btn{color:#fff;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:.25rem;transition:transform .2s;display:flex}.hamburger-btn:active{transform:scale(.9)}.header-btn.icon-only{border-radius:50%;width:38px;padding:0}.mobile-sidebar{background-color:var(--primary);color:#fff;z-index:1000;flex-direction:column;width:280px;height:100vh;transition:left .3s;display:flex;position:fixed;top:0;left:-280px;box-shadow:2px 0 10px #00000080}[data-theme=dark] .mobile-sidebar{background-color:#2a111a}.mobile-sidebar.open{left:0}.sidebar-overlay{z-index:999;opacity:0;background-color:#0009;width:100vw;height:100vh;animation:.3s forwards fadeInOverlay;position:fixed;top:0;left:0}@keyframes fadeInOverlay{0%{opacity:0}to{opacity:1}}.close-btn{color:#fff;cursor:pointer;background:0 0;border:none;padding:.5rem;position:absolute;top:1rem;right:1rem}.sidebar-header{text-align:center;border-bottom:1px solid #ffffff1a;padding:2.5rem 1.5rem 1.5rem}.sidebar-logo{filter:drop-shadow(0 2px 5px #0006);border-radius:8px;height:72px;margin-bottom:1rem}.sidebar-header h2{margin-bottom:.25rem;font-size:1.4rem}.sidebar-slogan{color:var(--accent);letter-spacing:1px;text-transform:uppercase;font-size:.8rem;font-weight:600}.sidebar-content{flex:1;padding:1.5rem}.sidebar-greeting{text-align:center;color:#ffffffe6;margin-bottom:1rem;font-weight:600;display:block}@media (max-width:768px){.desktop-header{display:none!important}.mobile-header{justify-content:space-between;padding:.75rem 1rem;display:flex}.main-container{padding:.5rem}.message{max-width:95%;padding:.75rem 1rem;font-size:.95rem}.input-container{gap:.5rem;margin-top:.5rem;padding:.75rem}.chat-input{padding:.65rem;font-size:16px}.auth-page{flex-direction:column;height:auto;min-height:100vh}.auth-left{flex:none;padding:2.5rem 1.5rem}.auth-left-logo{height:80px;margin-bottom:1rem}.auth-left h1{font-size:2rem}.auth-right{flex:1;align-items:flex-start;padding:1.5rem}.auth-card{padding:2rem 1.5rem}}@media (max-width:480px){.message{max-width:100%;font-size:.9rem}.auth-left h1{font-size:1.75rem}.auth-left p{font-size:1rem}}