*{box-sizing:border-box}.regex-workstation{color:#fff;flex-direction:column;gap:.75rem;width:100%;max-width:1200px;margin:0 auto;padding:0 20px;display:flex}.regex-container{background:var(--ds-bg-card,#0a0a1273);-webkit-backdrop-filter:blur(20px);border:1px solid var(--ds-border,#ffffff14);border-radius:var(--ds-r-xl,18px);box-shadow:var(--ds-shadow-md);flex-direction:column;gap:12px;padding:16px;display:flex}.regex-input-section{flex-direction:column;gap:10px;display:flex}.regex-field-wrap{align-items:flex-end;gap:12px;width:100%;display:flex}.regex-main-input{flex:1;min-width:0}.regex-flags-wrap{flex-shrink:0;width:100px}.field-label{color:#ffffff80;text-transform:uppercase;letter-spacing:1px;margin-bottom:.4rem;font-size:.55rem;font-weight:800;display:block}.regex-input,.flags-input-field{color:#fff;background:#00000040;border:1px solid #ffffff1a;border-radius:10px;outline:none;width:100%;padding:.75rem 1rem;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.95rem;transition:all .3s}.flags-input-field{color:#0fc;letter-spacing:2px;font-weight:600}.regex-input{color:#0fc;font-weight:600}.regex-input:focus,.flags-input-field:focus{border-color:#0fc;box-shadow:0 0 0 3px #00ffcc1a}.regex-input.invalid{border-color:#ef4444;box-shadow:0 0 0 3px #ef44441a}.test-area{grid-template-columns:1fr;gap:1rem;display:grid}.highlight-editor{background:#00000040;border:1px solid #ffffff1a;border-radius:10px;min-height:120px;transition:border-color .2s,box-shadow .2s;position:relative;overflow:hidden}.highlight-editor:focus-within{border-color:#0fc;box-shadow:0 0 0 3px #00ffcc1a}.highlight-layer,.test-input{letter-spacing:normal;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;box-sizing:border-box;border:none;outline:none;width:100%;height:100%;margin:0;padding:.85rem 1rem;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.95rem;line-height:1.6;position:absolute;top:0;left:0}.test-input{z-index:2;caret-color:#0fc;resize:none;overflow-y:auto;color:#0000!important;-webkit-text-fill-color:transparent!important;background:0 0!important}.test-input::selection{background:#00ffcc40;color:#0000!important;-webkit-text-fill-color:transparent!important}.highlight-layer{z-index:1;color:#ffffffd9;pointer-events:none;background:0 0;border:none;overflow-y:hidden}.regex-match{background:#0fc3;border-bottom:2px solid #0fc;border-radius:2px}.explanation-section{background:#0f172a4d;border:1px solid #ffffff14;border-radius:16px;margin-top:1rem;padding:1.25rem 1rem .75rem;position:relative}.explanation-section .field-label{color:#ffffff80;background:#1e293b;border:1px solid #ffffff14;border-radius:4px;margin-bottom:0;padding:0 12px;font-size:.55rem;font-weight:800;position:absolute;top:-10px;left:1.5rem}.cheat-sheet-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.25rem;margin-top:1rem;display:grid}.cheat-card{background:#ffffff05;border:1px solid #ffffff0d;border-radius:12px;padding:1rem;transition:all .3s}.cheat-card:hover{background:#ffffff0a;border-color:#00ffcc26;transform:translateY(-2px)}.cheat-card-header{border-bottom:1px solid #ffffff0d;align-items:center;gap:.75rem;margin-bottom:1rem;padding-bottom:.75rem;display:flex}.cat-icon{font-size:1rem}.cat-title{color:#fff;letter-spacing:.02em;margin:0;font-size:.8rem;font-weight:600}.rule-list{flex-direction:column;gap:.75rem;display:flex}.rule-item{align-items:center;gap:.75rem;display:flex}.rule-char{color:#0fc;text-align:center;background:#00ffcc14;border:1px solid #0fc3;border-radius:6px;min-width:42px;padding:.2rem .5rem;font-family:JetBrains Mono,monospace;font-size:.75rem;font-weight:700;box-shadow:0 2px 4px #0000001a}.rule-desc{color:#ffffff80;font-size:.8rem;font-weight:400}.regex-stats{justify-content:space-between;align-items:center;padding:0 .5rem;display:flex}.match-count{color:#0fc;text-transform:uppercase;font-size:.75rem;font-weight:700}@media (max-width:768px){.regex-field-wrap{flex-direction:column;align-items:stretch}.regex-flags-wrap{width:100%}}