:root{--primary:#6366f1;--primary-dark:#4f46e5;--bg:#f8fafc;--white:#fff;--text-main:#0f172a;--text-light:#64748b;--border:#e2e8f0}body{background-color:var(--bg);color:var(--text-main);margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}.navbar{z-index:100;backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:rgba(255,255,255,.8);padding:.75rem 0;position:sticky;top:0}.navbar .nav-content{justify-content:space-between;align-items:center;max-width:1000px;margin:0 auto;padding:0 1.5rem;display:flex}.navbar .nav-logo{color:var(--primary);font-size:1.5rem;font-weight:800}.navbar .nav-links{gap:.5rem;display:flex}.navbar .nav-links a{color:var(--text-light);border-radius:.5rem;padding:.5rem 1rem;text-decoration:none;transition:all .2s}.navbar .nav-links a[aria-current=page]{color:var(--primary);background:rgba(99,102,241,.1);font-weight:600}.navbar .nav-links a:hover{color:var(--primary);background:rgba(99,102,241,.05)}.community-container{justify-content:center;padding:3rem 1rem;display:flex}.auth-card{background:var(--white);text-align:center;border-radius:1.5rem;width:100%;max-width:400px;padding:3rem;box-shadow:0 20px 25px -5px rgba(0,0,0,.1)}.auth-card h2{color:var(--text-main);margin-top:0;font-size:1.75rem}.auth-card p{color:var(--text-light);margin-bottom:2rem}.auth-card form{flex-direction:column;gap:1.25rem;display:flex}.auth-card form input{box-sizing:border-box;border:1px solid var(--border);border-radius:.75rem;width:100%;padding:.8rem 1rem;font-size:1rem;transition:border-color .2s}.auth-card form input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(99,102,241,.1)}.auth-card form button{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:.75rem;width:100%;padding:.8rem;font-size:1rem;font-weight:600;transition:background .2s}.auth-card form button:hover{background:var(--primary-dark)}.chat-main{background:var(--white);border-radius:1.5rem;flex-direction:column;width:100%;max-width:800px;height:650px;display:flex;overflow:hidden;box-shadow:0 25px 50px -12px rgba(0,0,0,.1)}.chat-top-bar{border-bottom:1px solid var(--border);background:#fff;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;display:flex}.chat-top-bar h3{margin:0;font-size:1.1rem}.chat-top-bar .badge{background:#f1f5f9;border-radius:1rem;padding:.3rem .8rem;font-size:.8rem;font-weight:600}.message-area{background:#fafafa;flex-direction:column;flex:1;gap:1rem;padding:1.5rem;display:flex;overflow-y:auto}.msg-row{display:flex}.msg-row.me{justify-content:flex-end}.msg-row.me .msg-bubble{background:var(--primary);color:#fff;border-bottom-right-radius:2px}.msg-row.other{justify-content:flex-start}.msg-row.other .msg-bubble{color:var(--text-main);background:#f1f5f9;border-bottom-left-radius:2px}.msg-bubble{border-radius:1.25rem;max-width:75%;padding:.75rem 1.25rem}.msg-bubble strong{opacity:.8;margin-bottom:4px;font-size:.75rem;display:block}.msg-bubble p{margin:0;line-height:1.5}.chat-input-wrapper{border-top:1px solid var(--border);padding:1.25rem}.chat-input-wrapper form .input-group{gap:.75rem;display:flex}.chat-input-wrapper form .input-group input{border:1px solid var(--border);background:#f8fafc;border-radius:2rem;flex:1;padding:.75rem 1.25rem}.chat-input-wrapper form .input-group button{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:2rem;padding:0 1.5rem;font-weight:600}.app-footer{text-align:center;padding:3rem 0}.app-footer .server-time{border:1px solid var(--border);color:var(--text-light);background:#fff;border-radius:2rem;padding:.5rem 1.25rem;font-size:.85rem;font-weight:500;display:inline-block;box-shadow:0 1px 2px rgba(0,0,0,.05)}.home-container{max-width:1100px;margin:0 auto;padding:0 1rem}.projects-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-items:stretch;gap:2rem;margin:2rem 0;display:grid}.project-card{background:var(--white);border:1px solid var(--border);border-radius:1rem;flex-direction:column;height:100%;transition:transform .2s,box-shadow .2s;display:flex;overflow:hidden}.project-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,.05)}.project-card .project-image{background:#f1f5f9;height:180px}.project-card .project-image img{object-fit:cover;width:100%;height:100%;display:block}.project-card .project-content{flex-direction:column;flex-grow:1;padding:1.25rem;display:flex}.project-card .project-content h3{color:var(--text-main);margin:0 0 .5rem;font-size:1.25rem}.project-card .project-content p{color:var(--text-light);flex-grow:1;margin-bottom:1.5rem;font-size:.95rem;line-height:1.5}.project-card .project-links{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}.project-card .project-links a{text-align:center;border-radius:.5rem;padding:.6rem;font-size:.85rem;font-weight:600;text-decoration:none;transition:background .2s;display:inline-block}.project-card .project-links .btn-download{background:var(--primary);color:#fff}.project-card .project-links .btn-download:hover{background:var(--primary-dark)}.project-card .project-links .btn-code{background:var(--bg);color:var(--text-main);border:1px solid var(--border)}.project-card .project-links .btn-code:hover{background:var(--border)}.loading-trigger{text-align:center;min-height:100px;padding:3rem 0}.end-msg{color:var(--text-light);border-top:1px solid var(--border);padding-top:2rem;font-size:.9rem}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:30px;height:30px;margin:0 auto;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}