:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.shell{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:2rem 1rem}.header{text-align:center;margin-bottom:2rem}.header h1{margin:0;font-size:2.5rem;font-weight:800;letter-spacing:-.03em;background:linear-gradient(135deg,#ff6b6b,#ffd93d,#6bcb77,#4d96ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{margin:.5rem 0 0;color:#ffffff80;font-size:1rem}.input-section{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;justify-content:center;margin-bottom:1.5rem}.nickname-input{background:#ffffff0f;border:1px solid rgba(255,255,255,.15);border-radius:.5rem;padding:.75rem 1rem;color:#fafafa;font-size:1.1rem;width:16rem;outline:none;transition:border-color .2s,box-shadow .2s}.nickname-input:focus{border-color:#ffd93d;box-shadow:0 0 0 2px #ffd93d33}.nickname-input::placeholder{color:#ffffff4d}.vs-badge{font-weight:800;font-size:1.2rem;color:#ff6b6b;text-transform:uppercase;letter-spacing:.1em}.battle-btn{display:inline-flex;align-items:center;gap:.5rem;background:linear-gradient(135deg,#ff6b6b,#ee5a24);color:#fff;font-size:1.1rem;font-weight:700;border:none;border-radius:.5rem;padding:.85rem 2rem;cursor:pointer;transition:transform .15s,box-shadow .15s;letter-spacing:.02em;margin-bottom:2rem}.battle-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #ff6b6b59}.battle-btn:active:not(:disabled){transform:translateY(0)}.battle-btn:disabled{opacity:.4;cursor:not-allowed}.battle-arena{width:100%;max-width:42rem;display:flex;flex-direction:column;gap:1.5rem}.round{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:.75rem;padding:1.5rem;animation:fadeSlideIn .4s ease-out both}.round:nth-child(2){animation-delay:.15s}.round:nth-child(3){animation-delay:.3s}.round:nth-child(4){animation-delay:.45s}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.round-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.round-label{font-size:.7rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.15em;text-transform:uppercase;color:#fff6}.rapper-name{font-weight:700;font-size:.9rem}.rapper-name.left{color:#ff6b6b}.rapper-name.right{color:#4d96ff}.verse{font-size:1rem;line-height:1.7;color:#ffffffd9;white-space:pre-line}.verdict{background:linear-gradient(135deg,#ffd93d14,#6bcb7714);border:1px solid rgba(255,217,61,.2);border-radius:.75rem;padding:1.5rem;text-align:center;animation:fadeSlideIn .4s ease-out both;animation-delay:.6s}.verdict h2{margin:0 0 .5rem;font-size:1.3rem;font-weight:700;color:#ffd93d}.verdict p{margin:0;color:#fff9;font-size:.95rem}.crowd-meter{margin-top:1.25rem;display:flex;justify-content:center;gap:2rem;flex-wrap:wrap}.crowd-stat{text-align:center}.crowd-stat .label{display:block;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:#fff6;margin-bottom:.35rem}.crowd-stat .value{font-size:1.5rem;font-weight:800}.crowd-stat.left .value{color:#ff6b6b}.crowd-stat.right .value{color:#4d96ff}@keyframes spin{to{transform:rotate(360deg)}}.spinner{display:inline-block;width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@media(max-width:640px){.header h1{font-size:1.8rem}.input-section{flex-direction:column}.nickname-input{width:100%;max-width:20rem}}