:root{--rln-primary:#6366f1;--rln-primary-hover:#4f46e5;--rln-primary-active:#4338ca;--rln-primary-light:#818cf8;--rln-primary-bg:#6366f114;--rln-bg:#fff;--rln-bg-secondary:#f8fafc;--rln-bg-tertiary:#f1f5f9;--rln-header-bg:#f8fafc;--rln-text:#0f172a;--rln-text-secondary:#475569;--rln-text-muted:#64748b;--rln-text-placeholder:#94a3b8;--rln-border:#e2e8f0;--rln-border-light:#f1f5f9;--rln-shadow-sm:0 1px 2px 0 #0000000d;--rln-shadow:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--rln-shadow-md:0 10px 15px -3px #0000000d, 0 4px 6px -2px #00000006;--rln-shadow-lg:0 20px 25px -5px #0000000d, 0 10px 10px -5px #00000005;--rln-shadow-focus:0 0 0 3px #6366f133;--rln-success:#10b981;--rln-success-bg:#10b9811a;--rln-warning:#f59e0b;--rln-warning-bg:#f59e0b1a;--rln-error:#ef4444;--rln-error-bg:#ef444414;--rln-info:#0ea5e9;--rln-info-bg:#0ea5e91a;--rln-radius:.75rem;--rln-radius-lg:1rem;--rln-radius-sm:.5rem;--rln-radius-xs:.375rem}._rln-container{flex-direction:column;gap:1rem;width:100%;max-width:1300px;margin:0 auto;display:flex}@media (max-width:768px){._rln-container{gap:.75rem;padding-left:1rem;padding-right:1rem}}._rln-options{background:var(--rln-bg);border-radius:var(--rln-radius);border-style:solid;border-width:1px;border-color:var(--rln-border);box-shadow:var(--rln-shadow-sm);z-index:20;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:.75rem 1rem;display:flex;position:relative}._rln-options-group{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}._rln-dropdown{flex-direction:column;min-height:2.5rem;display:flex;position:relative}._rln-dropdown.is-hidden{display:none}._rln-dropdown-trigger{background:var(--rln-bg);border-style:solid;border-width:1px;border-color:var(--rln-border);border-radius:var(--rln-radius-sm);color:var(--rln-text);cursor:pointer;-webkit-user-select:none;user-select:none;min-width:130px;box-shadow:var(--rln-shadow-sm);text-align:left;align-items:center;gap:.5rem;padding:.875rem .75rem .375rem;font-size:.875rem;font-weight:600;transition:all .2s;display:flex}._rln-dropdown-trigger:hover{border-color:var(--rln-primary-light);box-shadow:var(--rln-shadow)}._rln-dropdown-trigger:active,._rln-dropdown.is-open ._rln-dropdown-trigger{border-color:var(--rln-primary);box-shadow:0 0 0 3px var(--rln-primary-bg)}._rln-dropdown-trigger svg{width:14px;height:14px;color:var(--rln-text-muted);flex-shrink:0;margin-left:auto;transition:transform .2s}._rln-dropdown.is-open ._rln-dropdown-trigger svg{transform:rotate(180deg)}._rln-dropdown-float-label{text-transform:uppercase;letter-spacing:.05em;color:var(--rln-primary);pointer-events:none;background:var(--rln-bg);z-index:1;padding:0 .25rem;font-size:.6875rem;font-weight:600;line-height:1;position:absolute;top:0;left:.625rem}._rln-dropdown-value{color:var(--rln-text);white-space:nowrap;text-overflow:ellipsis;flex:1;font-weight:600;overflow:hidden}._rln-dropdown-menu{background:var(--rln-bg);border-style:solid;border-width:1px;border-color:var(--rln-border-light);border-radius:var(--rln-radius);min-width:160px;box-shadow:var(--rln-shadow-md);z-index:100;opacity:0;visibility:hidden;padding:.5rem;transition:opacity .2s,transform .2s,visibility .2s;position:absolute;top:calc(100% + 8px);left:0;transform:translateY(-8px)}._rln-dropdown.is-open ._rln-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}._rln-dropdown-item{border-radius:var(--rln-radius-sm);width:100%;color:var(--rln-text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:.75rem;padding:.625rem .875rem;font-size:.875rem;font-weight:500;transition:background-color .15s,color .15s;display:flex}._rln-dropdown-item:hover{background:var(--rln-bg-secondary);color:var(--rln-text)}._rln-dropdown-item.is-active{background:var(--rln-primary-bg);color:var(--rln-primary);font-weight:600}._rln-dropdown-item svg{opacity:0;color:currentColor;width:14px;height:14px;transition:opacity .2s}._rln-dropdown-item.is-active svg{opacity:1}._rln-float-field{flex-direction:column;min-height:2.5rem;display:flex;position:relative}._rln-float-field.is-hidden{display:none}._rln-float-wrapper{align-items:center;display:flex;position:relative}._rln-float-input{background:var(--rln-bg);border-style:solid;border-width:1px;border-color:var(--rln-border);border-radius:var(--rln-radius-sm);width:280px;font-size:.875rem;font-weight:600;font-family:var(--main-font-mono);color:var(--rln-text);box-shadow:var(--rln-shadow-sm);padding:.875rem 4.5rem .375rem .75rem;transition:border-color .2s,box-shadow .2s}._rln-float-input:hover{border-color:var(--rln-primary-light)}._rln-float-input:focus{border-color:var(--rln-primary);box-shadow:0 0 0 3px var(--rln-primary-bg);outline:none}._rln-custom-actions{align-items:center;gap:.25rem;display:flex;position:absolute;top:50%;right:.5rem;transform:translateY(-50%)}._rln-regex-toggle{background:var(--rln-bg-secondary);border:1px solid var(--rln-border);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:4px;justify-content:center;align-items:center;width:1.75rem;height:1.75rem;transition:all .2s;display:flex}._rln-regex-toggle:hover{border-color:var(--rln-primary-light)}._rln-regex-toggle input{display:none}._rln-regex-toggle span{color:var(--rln-text-muted);font-size:.625rem;font-weight:700}._rln-regex-toggle input:checked+span{color:var(--rln-primary)}._rln-regex-toggle:has(input:checked){background:var(--rln-primary-bg);border-color:var(--rln-primary)}._rln-save-preset-btn{width:1.75rem;height:1.75rem;color:var(--rln-text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;transition:all .2s;display:flex}._rln-save-preset-btn:hover{background:var(--rln-primary-bg);color:var(--rln-primary)}._rln-float-label{color:var(--rln-text-muted);pointer-events:none;background:var(--rln-bg);padding:0 .25rem;font-size:.875rem;font-weight:500;line-height:1;transition:all .2s cubic-bezier(.4,0,.2,1);position:absolute;top:50%;left:.75rem;transform:translateY(-50%)}._rln-float-input:focus+._rln-float-label,._rln-float-input:not(:placeholder-shown)+._rln-float-label{text-transform:uppercase;letter-spacing:.05em;color:var(--rln-primary);font-size:.6875rem;font-weight:600;top:0;left:.625rem}._rln-float-hint{color:var(--rln-text-secondary);background:var(--rln-bg-secondary);border-radius:var(--rln-radius-xs);opacity:0;pointer-events:none;white-space:nowrap;padding:.125rem .5rem;font-size:.6875rem;transition:opacity .2s,transform .2s;position:absolute;bottom:-1.5rem;left:0;transform:translateY(-2px);box-shadow:0 1px 3px 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input:checked+._rln-checkbox-box{background:var(--rln-primary);border-color:var(--rln-primary)}._rln-checkbox input:checked+._rln-checkbox-box svg{opacity:1}._rln-checkbox-label{color:var(--rln-text);font-size:.875rem;font-weight:500}._rln-presets-inline{align-items:center;gap:.5rem;display:flex}._rln-presets-inline.is-hidden{display:none}._rln-presets-label{text-transform:uppercase;letter-spacing:.05em;color:var(--rln-text-muted);font-size:.75rem;font-weight:600}._rln-presets{align-items:center;gap:.375rem;display:flex}._rln-preset{background:var(--rln-bg-tertiary);border-radius:var(--rln-radius-xs);min-width:2.25rem;color:var(--rln-text-secondary);cursor:pointer;border:none;justify-content:center;align-items:center;padding:.375rem .625rem;font-size:.8125rem;font-weight:600;transition:background-color .15s,color 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.375rem;font-size:.6875rem}._rln-regex-example span{color:var(--rln-text-muted);font-size:.6875rem}._rln-regex-syntax{grid-template-columns:repeat(2,1fr);gap:.25rem .75rem;display:grid}._rln-regex-syntax-item{align-items:center;gap:.5rem;font-size:.75rem;display:flex}._rln-regex-syntax-item code{font-family:var(--main-font-mono);color:var(--rln-primary);background:var(--rln-primary-bg);text-align:center;border-radius:3px;min-width:3rem;padding:.125rem .375rem;font-size:.6875rem}._rln-regex-syntax-item span{color:var(--rln-text-secondary)}@media (max-width:900px){._rln-regex-help-content{grid-template-columns:1fr}._rln-options{flex-direction:column;align-items:stretch;gap:1.25rem;padding:1rem}._rln-options-group{flex-direction:column;align-items:stretch;gap:1rem}._rln-presets-label{display:none}._rln-float-field{margin-bottom:.5rem}._rln-float-hint{opacity:1;margin-top:.375rem;font-size:.75rem;position:static;transform:none}._rln-dropdown{margin-bottom:0}}@media (max-width:600px){._rln-regex-syntax{grid-template-columns:1fr}._rln-options{gap:1rem;padding:.875rem}._rln-options-group{gap:.875rem}._rln-float-field{flex:1;min-width:0;margin-bottom:.5rem}._rln-float-input{width:100%;min-width:0}._rln-float-hint{margin-top:.25rem;font-size:.6875rem}._rln-dropdown{flex:1;min-width:0}._rln-dropdown-trigger{width:100%;min-width:auto}._rln-checkbox{flex:1;width:100%}._rln-checkbox-label{font-size:.8rem}._rln-preset{flex:1;min-width:0;padding:.5rem .625rem;font-size:.75rem}._rln-presets{width:100%}}._rln-editor-section{grid-template-columns:1fr auto 1fr;align-items:stretch;gap:1rem;display:grid}._rln-panel{background:var(--rln-bg);border-radius:var(--rln-radius-lg);border-style:solid;border-width:1px;border-color:var(--rln-border);box-shadow:var(--rln-shadow);box-sizing:border-box;flex-direction:column;max-width:100%;height:100%;display:flex;overflow:hidden}._rln-panel 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svg{flex-shrink:0;width:14px;height:14px}._rln-btn-accent{background:var(--rln-primary);color:#fff}._rln-btn-accent:hover{background:var(--rln-primary-hover)}._rln-panel-body{flex-direction:column;flex:1;min-width:0;min-height:400px;max-height:700px;display:flex;position:relative;overflow:hidden}._rln-editor-wrapper{background:var(--rln-bg);min-width:0;max-width:100%;height:100%;display:block;position:relative}._rln-editor-wrapper ._rln-textarea{width:100%}._rln-line-numbers{background:var(--rln-bg-secondary);border-right-style:solid;border-right-width:1px;border-right-color:var(--rln-border-light);-webkit-user-select:none;user-select:none;opacity:.7;flex-shrink:0;width:3.5rem;overflow:hidden}._rln-line-numbers-inner{font-family:var(--main-font-mono);color:var(--rln-text-muted);text-align:right;white-space:nowrap;padding:1rem .5rem 1rem 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svg{transform:rotate(90deg)}._rln-panel-body{min-height:250px;max-height:400px}}._rln-stats{flex-wrap:wrap;justify-content:center;align-items:center;gap:.625rem;display:flex}._rln-stat{background:var(--rln-bg);border-style:solid;border-width:1px;border-color:var(--rln-border);box-shadow:var(--rln-shadow-sm);border-radius:100px;align-items:center;gap:.5rem;padding:.5rem .875rem;transition:box-shadow .2s,border-color .2s;display:inline-flex}._rln-stat:hover{box-shadow:var(--rln-shadow)}._rln-stat-label{color:var(--rln-text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:.75rem;font-weight:500}._rln-stat-value{color:var(--rln-text);font-size:.875rem;font-weight:700;font-family:var(--main-font-mono);text-align:center;min-width:1.5rem}._rln-stat-success{color:var(--rln-success)}._rln-stat--success{background:linear-gradient(135deg, var(--rln-bg) 0%, var(--rln-success-bg) 100%);border-color:#10b9814d}._rln-stat--success ._rln-stat-label{color:var(--rln-success)}._rln-stat-muted{color:var(--rln-text-muted)}._rln-stat--muted{opacity:.7}@media (max-width:600px){._rln-stats{gap:.5rem}._rln-stat{padding:.375rem .75rem}._rln-stat-label{font-size:.6875rem}._rln-stat-value{font-size:.8125rem}}