:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f1f5f9;--border:#e2e8f0;--border-focus:#3b82f6;--accent:#3b82f6;--accent-light:#60a5fa;--accent-glow:#3b82f633;--spam-color:#ef4444;--spam-glow:#ef444433;--spam-bg:#fef2f2;--spam-border:#fca5a5;--ham-color:#10b981;--ham-glow:#10b98133;--ham-bg:#ecfdf5;--ham-border:#6ee7b7;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--font:"Inter", -apple-system, BlinkMacSystemFont, sans-serif;--radius:16px;--radius-sm:10px;--transition:.25s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;overflow-x:hidden}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;width:100%;min-height:100vh;overflow-x:hidden}#root{z-index:1;width:100%;position:relative}.app-wrapper{flex-direction:column;align-items:center;width:100%;max-width:100%;min-height:100vh;padding:40px 20px 80px;display:flex}.header{text-align:center;width:100%;margin-bottom:40px;animation:.6s both fadeInDown}.header-badge{color:#1d4ed8;letter-spacing:.05em;text-transform:uppercase;background:#eff6ff;border:1px solid #bfdbfe;border-radius:100px;align-items:center;gap:8px;margin-bottom:24px;padding:6px 16px;font-size:12px;font-weight:600;display:inline-flex}.badge-dot{background:#3b82f6;border-radius:50%;width:6px;height:6px;animation:2s infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.5)}}.header h1{color:var(--text-primary);margin-bottom:16px;font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.2}.header p{color:var(--text-secondary);max-width:480px;margin:0 auto;font-size:1.05rem;line-height:1.65}.main-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:720px;padding:40px;animation:.7s .1s both fadeInUp;box-shadow:0 10px 30px -10px #0000000d}.form-label{color:var(--text-secondary);letter-spacing:.05em;text-transform:uppercase;margin-bottom:12px;font-size:.85rem;font-weight:600;display:block}.input-area-layout{align-items:flex-start;gap:24px;display:flex}.textarea-wrapper{flex:1;min-width:0;position:relative}.sms-textarea{border:2px solid var(--border);border-radius:var(--radius-sm);width:100%;min-height:140px;color:var(--text-primary);font-family:var(--font);resize:vertical;transition:all var(--transition);background:#f8fafc;outline:none;padding:16px;font-size:1rem;line-height:1.6}.sms-textarea::placeholder{color:var(--text-muted)}.sms-textarea:focus{border-color:var(--border-focus);background:#fff;box-shadow:0 0 0 4px #3b82f626}.char-count{color:var(--text-muted);pointer-events:none;transition:color var(--transition);font-size:.75rem;font-weight:500;position:absolute;bottom:12px;right:14px}.char-count.warning{color:#ea580c}.robot-wrapper{flex-shrink:0;justify-content:center;align-items:center;width:100px;height:140px;animation:4s ease-in-out infinite floatRobot;display:flex}@keyframes floatRobot{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.robot-face{flex-direction:column;align-items:center;display:flex}.robot-antenna{background:#cbd5e1;border-radius:2px 2px 0 0;width:4px;height:15px;position:relative}.robot-antenna:before{content:"";background:var(--accent);width:10px;height:10px;box-shadow:0 0 8px var(--accent-glow);border-radius:50%;position:absolute;top:-6px;left:-3px}.robot-head{background:#e2e8f0;border:2px solid #cbd5e1;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;width:70px;height:60px;display:flex;position:relative;box-shadow:inset 0 -4px #0000000d}.robot-ears{z-index:-1;background:#cbd5e1;border-radius:4px;height:16px;position:absolute;top:50%;left:-8px;right:-8px;transform:translateY(-50%)}.robot-eyes-container{gap:12px;margin-bottom:6px;display:flex}.robot-eye{background:#fff;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;display:flex;overflow:hidden;box-shadow:inset 0 2px 4px #0000001a}.robot-pupil{background:#0f172a;border-radius:50%;width:8px;height:8px;transition:transform .1s ease-out}.robot-mouth{background:#94a3b8;border-radius:10px;width:24px;height:6px;transition:all .2s}.is-typing .robot-mouth,.is-normal .robot-mouth{border-radius:0 0 12px 12px;height:12px}.is-normal .robot-mouth{background:var(--ham-color)}.is-spam .robot-mouth{background:var(--spam-color);border-radius:12px 12px 0 0;height:12px;margin-top:6px}.samples-section{margin-top:24px}.samples-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px;font-size:.75rem;font-weight:600}.samples-row{flex-wrap:wrap;gap:10px;display:flex}.sample-pill{color:var(--text-secondary);cursor:pointer;transition:all var(--transition);white-space:nowrap;text-overflow:ellipsis;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:100px;max-width:220px;padding:8px 16px;font-size:.85rem;font-weight:500;overflow:hidden}.sample-pill:hover{color:#1d4ed8;background:#eff6ff;border-color:#bfdbfe;transform:translateY(-2px);box-shadow:0 4px 12px #3b82f61a}.submit-btn{background:var(--accent);border-radius:var(--radius-sm);color:#fff;width:100%;font-family:var(--font);cursor:pointer;letter-spacing:.02em;transition:all var(--transition);border:none;margin-top:32px;padding:16px 32px;font-size:1.05rem;font-weight:600;position:relative;overflow:hidden;box-shadow:0 4px 14px #3b82f64d}.submit-btn:hover:not(:disabled){background:#2563eb;transform:translateY(-2px);box-shadow:0 6px 20px #3b82f666}.submit-btn:active:not(:disabled){transform:translateY(0)}.submit-btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;background:#94a3b8}.btn-inner{justify-content:center;align-items:center;gap:10px;display:flex}.spinner{border:2.5px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.result-card{border-radius:var(--radius-sm);border:1px solid #0000;margin-top:32px;padding:28px;animation:.5s cubic-bezier(.34,1.56,.64,1) both resultAppear;position:relative;overflow:hidden}@keyframes resultAppear{0%{opacity:0;transform:scale(.95)translateY(10px)}to{opacity:1;transform:scale(1)translateY(0)}}.result-card.spam{background:var(--spam-bg);border-color:var(--spam-border)}.result-card.ham{background:var(--ham-bg);border-color:var(--ham-border)}.result-shimmer{background:linear-gradient(90deg,#0000,#fff6,#0000);width:60%;height:100%;animation:1.5s .4s shimmer;position:absolute;top:0;left:-100%}@keyframes shimmer{0%{left:-100%}to{left:150%}}.result-top{align-items:center;gap:16px;margin-bottom:24px;display:flex}.result-icon{border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;display:flex}.result-card.spam .result-icon{color:var(--spam-color);background:#ef44441a}.result-card.ham .result-icon{color:var(--ham-color);background:#10b9811a}.result-title{letter-spacing:-.02em;font-size:1.4rem;font-weight:800}.result-card.spam .result-title{color:#991b1b}.result-card.ham .result-title{color:#065f46}.result-subtitle{color:var(--text-secondary);margin-top:4px;font-size:.9rem}.confidence-section{margin-top:8px}.confidence-header{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.confidence-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.8rem;font-weight:600}.confidence-value{font-size:1.1rem;font-weight:700}.result-card.spam .confidence-value{color:var(--spam-color)}.result-card.ham .confidence-value{color:var(--ham-color)}.confidence-bar-track{background:#0000000d;border-radius:100px;height:10px;overflow:hidden}.confidence-bar-fill{transform-origin:0;border-radius:100px;height:100%;animation:.8s cubic-bezier(.4,0,.2,1) .2s both fillBar}@keyframes fillBar{0%{width:0%!important}}.result-card.spam .confidence-bar-fill{background:var(--spam-color)}.result-card.ham .confidence-bar-fill{background:var(--ham-color)}.stats-row{grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;display:grid}.stat-box{border-radius:var(--radius-sm);background:#fff;border:1px solid #0000000d;padding:16px;box-shadow:0 2px 4px #00000005}.stat-box-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;font-size:.75rem;font-weight:600}.stat-box-value{color:var(--text-primary);font-size:1rem;font-weight:700}.error-box{border-radius:var(--radius-sm);color:#b91c1c;background:#fef2f2;border:1px solid #fca5a5;align-items:center;gap:12px;margin-top:24px;padding:16px 20px;font-size:.95rem;animation:.3s both fadeInUp;display:flex}.divider{background:var(--border);width:100%;max-width:720px;height:1px;margin:48px 0}.how-it-works{width:100%;max-width:720px;animation:.8s .3s both fadeInUp}.section-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;text-align:center;margin-bottom:32px;font-size:.85rem;font-weight:700}.steps-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center;transition:all var(--transition);padding:24px 20px;box-shadow:0 4px 6px -1px #00000005}.step-card:hover{border-color:#cbd5e1;transform:translateY(-4px);box-shadow:0 10px 15px -3px #0000000d}.step-icon-svg{width:32px;height:32px;color:var(--accent);margin:0 auto 16px}.step-title{color:var(--text-primary);margin-bottom:8px;font-size:.95rem;font-weight:700}.step-desc{color:var(--text-muted);font-size:.85rem;line-height:1.5}.footer{text-align:center;color:var(--text-muted);margin-top:60px;font-size:.85rem}.footer span{color:var(--accent);font-weight:500}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@media (width<=768px){.app-wrapper{padding:24px 16px 60px}.header h1{font-size:2rem}.main-card{padding:24px 20px}.input-area-layout{flex-direction:column-reverse;align-items:center;gap:16px}.robot-wrapper{margin-bottom:8px}.steps-grid,.stats-row{grid-template-columns:1fr}}