:root{--bg-deep:#050505;--bg-surface:#121212;--bg-surface-light:#1e1e1e;--border:#2a2a2a;--text-main:#f0f0f0;--text-dim:#a0a0a0;--text-muted:#606060;--primary:#00d4ff;--primary-glow:#00d4ff33;--accent:#bc13fe;--error:#ff4d4d;--success:#00e676;--font-mono:"JetBrains Mono", "Fira Code", monospace;--font-sans:"Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}body{background-color:var(--bg-deep);color:var(--text-main);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;margin:0;padding:0}.app-container{flex-direction:column;min-height:100vh;display:flex}.auth-wrapper{background:radial-gradient(circle at top right, #1a1a2e, var(--bg-deep));flex:1;justify-content:center;align-items:center;padding:2rem;display:flex}.card{background-color:var(--bg-surface);border:1px solid var(--border);border-radius:1rem;width:100%;max-width:440px;padding:2.5rem;box-shadow:0 10px 30px #00000080}.brand{align-items:center;gap:.75rem;margin-bottom:2rem;display:flex}.brand-icon{color:var(--primary);filter:drop-shadow(0 0 8px var(--primary-glow))}.brand-name{letter-spacing:-.025em;background:linear-gradient(to right, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.5rem;font-weight:800}.form-group{margin-bottom:1.5rem}.label{color:var(--text-dim);font-size:.875rem;font-family:var(--font-mono);margin-bottom:.5rem;display:block}.input-wrapper{position:relative}.input-icon{color:var(--text-muted);position:absolute;top:50%;left:.75rem;transform:translateY(-50%)}.input{background-color:var(--bg-deep);border:1px solid var(--border);width:100%;color:var(--text-main);border-radius:.5rem;padding:.75rem 1rem .75rem 2.5rem;font-size:1rem;transition:all .2s}.input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-glow);outline:none}.btn-primary{background:linear-gradient(135deg, var(--primary), #00a3cc);color:#fff;cursor:pointer;border:none;border-radius:.5rem;width:100%;padding:.875rem;font-weight:600;transition:transform .1s,opacity .2s}.btn-primary:hover{opacity:.9}.btn-primary:active{transform:scale(.98)}.error-box{color:var(--error);background-color:#ff4d4d1a;border:1px solid #ff4d4d4d;border-radius:.5rem;margin-bottom:1rem;padding:.75rem;font-size:.875rem}.navbar{background-color:var(--bg-surface);border-bottom:1px solid var(--border);z-index:100;justify-content:space-between;align-items:center;height:64px;padding:0 2rem;display:flex;position:sticky;top:0}.main-content{flex:1;width:100%;max-width:1000px;margin:0 auto;padding:2rem}.feed{flex-direction:column;gap:1.5rem;display:flex}.post-card{background-color:var(--bg-surface);border:1px solid var(--border);cursor:pointer;border-radius:.75rem;padding:1.5rem;transition:border-color .2s}.post-card:hover{border-color:var(--primary)}.post-header{justify-content:space-between;align-items:flex-start;margin-bottom:1rem;display:flex}.post-meta{color:var(--text-muted);font-size:.75rem;font-family:var(--font-mono)}.post-title{color:var(--text-main);margin:.5rem 0;font-size:1.25rem;font-weight:700}.post-preview{color:var(--text-dim);-webkit-line-clamp:3;-webkit-box-orient:vertical;font-size:.9375rem;line-height:1.5;display:-webkit-box;overflow:hidden}.badge{text-transform:uppercase;letter-spacing:.05em;border-radius:.25rem;padding:.25rem .5rem;font-size:.7rem;font-weight:700}.badge-question{color:var(--primary);background:#00d4ff1a;border:1px solid #00d4ff33}.badge-insight{color:var(--accent);background:#bc13fe1a;border:1px solid #bc13fe33}.user-widget{background-color:var(--bg-surface-light);border:1px solid var(--border);border-radius:2rem;align-items:center;gap:.75rem;padding:.5rem 1rem;display:flex}.karma-badge{background-color:var(--primary);color:var(--bg-deep);border-radius:1rem;padding:.1rem .4rem;font-size:.75rem;font-weight:800}.back-btn{color:var(--text-dim);cursor:pointer;background:0 0;border:none;align-items:center;gap:.5rem;margin-bottom:2rem;font-size:.875rem;display:flex}.back-btn:hover{color:var(--primary)}.comment-section{border-top:1px solid var(--border);margin-top:3rem;padding-top:2rem}.comment-card{border-bottom:1px solid var(--border);padding:1rem 0}.comment-meta{color:var(--text-muted);margin-bottom:.5rem;font-size:.75rem}.comment-box{flex-direction:column;gap:1rem;margin-top:2rem;display:flex}.textarea{background-color:var(--bg-deep);border:1px solid var(--border);color:var(--text-main);resize:vertical;border-radius:.5rem;min-height:120px;padding:1rem}.textarea:focus{border-color:var(--primary);outline:none}.overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-color:#000c;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.challenge-card{background-color:var(--bg-surface);border:1px solid var(--primary);text-align:center;border-radius:1rem;width:100%;max-width:400px;padding:2rem}