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input[type=checkbox]:checked:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:.7rem;color:var(--red-glow)}.tos-enter-btn{background:var(--red-dark);border:1px solid var(--red-mid);color:var(--text);font-family:var(--font);font-size:.82rem;letter-spacing:.15em;text-transform:lowercase;padding:.55rem 1.2rem;cursor:pointer;clip-path:polygon(3% 0%,100% 0%,97% 100%,0% 100%);transition:background .15s,box-shadow .15s;margin-top:.25rem}.tos-enter-btn:hover:not(:disabled){background:var(--red);box-shadow:0 0 20px #8c000080}.tos-enter-btn:disabled{opacity:.25;cursor:not-allowed}@media (max-width: 640px){body{font-size:12px}.sidebar{width:0;border-right:none}.header-inner{padding:.65rem .9rem}.title-text{font-size:1rem}.slash{font-size:1.2rem}.status-text,.model-select{display:none}.messages{padding:.8rem .9rem}.system-panel{padding:.5rem .9rem .6rem}.input-area{padding:.5rem .9rem .75rem}.input-wrapper{gap:.5rem;padding:.4rem .55rem}.input-prefix{font-size:.9rem}.send-btn{min-width:44px;padding:.2rem .6rem}.message-label{font-size:.58rem}.think-content{max-height:180px}}