:root{--rtg-bg:var(--surface-2);--rtg-card-bg:var(--surface);--rtg-card-border:rgba(15, 23, 42, 0.09);--rtg-card-border-hover:rgba(68, 97, 242, 0.3);--rtg-card-shadow:0 1px 2px rgba(15, 23, 42, 0.04),0 10px 30px -12px rgba(15, 23, 42, 0.1);--rtg-card-shadow-hover:0 1px 2px rgba(15, 23, 42, 0.05),0 18px 44px -14px rgba(15, 23, 42, 0.14);--rtg-text-main:var(--ink);--rtg-text-sub:var(--ink-2);--rtg-text-muted:var(--ink-3);--rtg-surface-2:var(--surface-2);--rtg-surface-3:var(--surface-3);--rtg-header-bg:transparent;--rtg-divider:rgba(15, 23, 42, 0.1);--rtg-input-border:rgba(15, 23, 42, 0.13);--rtg-input-border-focus:rgba(68, 97, 242, 0.55);--rtg-btn-bg:var(--surface);--rtg-btn-color:var(--ink-2);--rtg-btn-border:rgba(15, 23, 42, 0.12);--rtg-btn-hover-bg:var(--indigo-light);--rtg-btn-hover-border:rgba(68, 97, 242, 0.35);--rtg-btn-hover-color:var(--indigo);--rtg-primary:#4461f2;--rtg-primary-light:rgba(68, 97, 242, 0.1);--rtg-grad:linear-gradient(135deg, #7043ee 0%, #4b5cf1 100%);--rtg-grad-hover:linear-gradient(135deg, #6337df 0%, #3f50e6 100%);--rtg-green:#10b981;--rtg-green-bg:rgba(16, 185, 129, 0.1);--rtg-rose:#f43f5e;--rtg-rose-bg:rgba(244, 63, 94, 0.08);--rtg-radius:14px;--rtg-radius-sm:10px;--rtg-radius-xs:7px;--rtg-transition:0.2s ease}[data-theme=dark]{--rtg-bg:#0f1218;--rtg-card-bg:#171a23;--rtg-card-border:rgba(99, 102, 241, 0.24);--rtg-card-border-hover:rgba(129, 140, 248, 0.45);--rtg-card-shadow:0 8px 32px rgba(0, 0, 0, 0.38);--rtg-card-shadow-hover:0 12px 40px rgba(0, 0, 0, 0.5);--rtg-text-main:#f8fafc;--rtg-text-sub:#cbd5e1;--rtg-text-muted:#94a3b8;--rtg-surface-2:#12151e;--rtg-surface-3:#1f2330;--rtg-header-bg:transparent;--rtg-divider:rgba(255, 255, 255, 0.09);--rtg-input-border:rgba(255, 255, 255, 0.14);--rtg-input-border-focus:rgba(129, 140, 248, 0.65);--rtg-btn-bg:#1c202d;--rtg-btn-color:#cbd5e1;--rtg-btn-border:rgba(255, 255, 255, 0.1);--rtg-btn-hover-bg:rgba(68, 97, 242, 0.18);--rtg-btn-hover-border:rgba(129, 140, 248, 0.4);--rtg-btn-hover-color:#818cf8;--rtg-primary-light:rgba(68, 97, 242, 0.2);--rtg-green-bg:rgba(16, 185, 129, 0.18);--rtg-rose-bg:rgba(244, 63, 94, 0.15)}.rtg-page-wrapper{background:var(--rtg-bg);min-height:calc(100vh - 80px);padding:100px 0 80px;transition:background .3s}.rtg-header{text-align:center;max-width:680px;margin:0 auto 28px}.rtg-header h1{font-family:var(--font-display);font-size:clamp(28px, 4vw, 42px);font-weight:800;color:var(--rtg-text-main);line-height:1.2;letter-spacing:-.025em;margin:0 0 10px}.rtg-workspace{display:grid;grid-template-columns:1fr;gap:20px;max-width:920px;margin:0 auto;align-items:start}.rtg-card{background:var(--rtg-card-bg);border:1px solid var(--rtg-card-border);border-radius:var(--rtg-radius);box-shadow:var(--rtg-card-shadow);overflow:hidden;transition:border-color var(--rtg-transition),box-shadow var(--rtg-transition),background .3s ease}.rtg-card:hover{border-color:var(--rtg-card-border-hover);box-shadow:var(--rtg-card-shadow-hover)}.rtg-card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;gap:12px}.rtg-card-title{display:flex;align-items:center;gap:10px;min-width:0}.rtg-card-title h2{font-size:15.5px;font-weight:700;color:var(--rtg-text-main);margin:0;letter-spacing:-.01em}.rtg-header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.rtg-action-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:var(--rtg-radius-sm);font-size:13px;font-weight:600;color:var(--rtg-btn-color);background:var(--rtg-btn-bg);border:1px solid var(--rtg-btn-border);cursor:pointer;transition:all var(--rtg-transition);white-space:nowrap;font-family:var(--font-body)}.rtg-action-btn:hover:not(:disabled){color:var(--rtg-btn-hover-color);background:var(--rtg-btn-hover-bg);border-color:var(--rtg-btn-hover-border);transform:translateY(-1px)}.rtg-action-btn:active:not(:disabled){transform:translateY(0)}.rtg-action-btn:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}.rtg-action-btn:disabled{opacity:.55;cursor:not-allowed}.rtg-action-btn--danger{color:var(--rtg-rose);border-color:rgba(244,63,94,.2)}.rtg-action-btn--danger:hover:not(:disabled){color:var(--rtg-rose);background:var(--rtg-rose-bg);border-color:rgba(244,63,94,.35)}.rtg-action-btn--success{color:#fff!important;background:var(--rtg-green)!important;border-color:var(--rtg-green)!important;box-shadow:0 2px 10px rgba(16,185,129,.3)!important}.rtg-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;border-radius:var(--rtg-radius-sm);font-size:14px;font-weight:700;font-family:var(--font-body);cursor:pointer;border:1px solid transparent;transition:all var(--rtg-transition);white-space:nowrap;letter-spacing:-.01em}.rtg-btn:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}.rtg-btn--primary{color:#fff;background:var(--rtg-grad);box-shadow:0 4px 16px rgba(112,67,238,.28)}.rtg-btn--primary:hover:not(:disabled){background:var(--rtg-grad-hover);box-shadow:0 7px 22px rgba(112,67,238,.38);transform:translateY(-1px)}.rtg-btn--primary:active:not(:disabled){transform:translateY(0)}.rtg-btn--outline{color:var(--rtg-btn-color);background:var(--rtg-btn-bg);border-color:var(--rtg-btn-border)}.rtg-btn--outline:hover:not(:disabled){color:var(--rtg-btn-hover-color);background:var(--rtg-btn-hover-bg);border-color:var(--rtg-btn-hover-border);transform:translateY(-1px)}.rtg-btn--outline:active:not(:disabled){transform:translateY(0)}.rtg-btn:disabled{opacity:.55;cursor:not-allowed}.rtg-input-card{display:flex;flex-direction:column}.rtg-textarea-wrap{position:relative;padding:0 20px}#rtg-input{width:100%;height:320px;padding:14px 48px 14px 16px;font-size:15.5px;font-family:var(--font-body);color:var(--rtg-text-main);background:var(--rtg-card-bg);border:1px solid var(--rtg-input-border);border-radius:var(--rtg-radius-sm);outline:0;resize:none;overflow-y:auto;line-height:1.7;display:block;box-sizing:border-box;transition:border-color var(--rtg-transition),box-shadow var(--rtg-transition),background .3s ease}#rtg-input::placeholder{color:var(--rtg-text-muted);opacity:.65}#rtg-input:focus{border-color:var(--rtg-input-border-focus);box-shadow:0 0 0 3px rgba(68,97,242,.12)}.rtg-copy-input{position:absolute;top:14px;right:32px;width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:8px;background:0 0;color:var(--rtg-text-muted);cursor:pointer;transition:all var(--rtg-transition)}.rtg-copy-input:hover:not(:disabled){color:var(--indigo);background:var(--indigo-light)}.rtg-copy-input:disabled{opacity:.35;cursor:not-allowed}.rtg-copy-input:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}#rtg-input.rtg-error{border-color:rgba(244,63,94,.6);box-shadow:0 0 0 3px rgba(244,63,94,.15);background:var(--rtg-rose-bg);animation:.4s rtg-shake}@keyframes rtg-shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}.rtg-mode-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px}.rtg-mode-btn{appearance:none;border:none;display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:var(--rtg-radius-sm);font-size:14.5px;font-weight:700;font-family:var(--font-body);letter-spacing:-.01em;color:#fff;background:var(--rtg-grad);cursor:pointer;white-space:nowrap;box-shadow:0 6px 18px -7px rgba(112,67,238,.6);transition:transform var(--rtg-transition),box-shadow var(--rtg-transition),background var(--rtg-transition)}.rtg-mode-btn:hover{background:var(--rtg-grad-hover);transform:translateY(-2px);box-shadow:0 12px 26px -9px rgba(112,67,238,.65)}.rtg-mode-btn:active{transform:translateY(0)}.rtg-mode-btn.active{box-shadow:0 0 0 2px var(--rtg-card-bg),0 0 0 4px rgba(68,97,242,.55),0 8px 20px -8px rgba(112,67,238,.55)}.rtg-mode-btn:focus-visible{outline:2px solid var(--indigo);outline-offset:3px}.rtg-card-footer{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:12px}.rtg-stats-bar{display:inline-flex;align-items:baseline;gap:5px;font-size:13px;font-weight:500;color:var(--rtg-text-muted)}.rtg-stats-bar strong{font-weight:700;color:var(--rtg-text-sub)}.rtg-icon-btn{appearance:none;display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;flex-shrink:0;border:1px solid transparent;border-radius:var(--rtg-radius-xs);background:0 0;color:var(--rtg-text-muted);cursor:pointer;transition:all var(--rtg-transition)}.rtg-icon-btn:hover{color:var(--rtg-text-main);background:var(--rtg-surface-3);border-color:var(--rtg-btn-border)}.rtg-icon-btn--danger:hover{color:var(--rtg-rose);background:var(--rtg-rose-bg);border-color:rgba(244,63,94,.3)}.rtg-icon-btn:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}.rtg-output-card{display:flex;flex-direction:column}#rtg-output{width:100%;height:320px;padding:14px 16px;font-size:15.5px;font-family:var(--font-body);color:var(--rtg-text-main);background:var(--rtg-card-bg);border:1px solid var(--rtg-input-border);border-radius:var(--rtg-radius-sm);outline:0;resize:none;overflow-y:auto;line-height:1.7;display:block;box-sizing:border-box;white-space:pre-wrap;word-break:break-word;cursor:text;transition:border-color var(--rtg-transition),box-shadow var(--rtg-transition),background .3s ease}#rtg-output::placeholder{color:var(--rtg-text-muted);opacity:.7;font-style:italic}#rtg-output:focus{border-color:var(--rtg-input-border-focus);box-shadow:0 0 0 3px rgba(68,97,242,.12)}#rtg-output.has-output{background:rgba(112,67,238,.02)}[data-theme=dark] #rtg-output.has-output{background:rgba(112,67,238,.06)}.rtg-output-meta{display:inline-flex;align-items:baseline;gap:5px;font-size:13px;color:var(--rtg-text-muted);font-weight:500}.rtg-output-meta strong{color:var(--rtg-text-sub);font-weight:700}.rtg-example{grid-column:1/-1;display:flex;flex-direction:column;gap:14px;padding:20px 22px;margin-top:4px;background:var(--rtg-card-bg);border:1px solid var(--rtg-card-border);border-radius:var(--rtg-radius);box-shadow:var(--rtg-card-shadow)}.rtg-example-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--rtg-text-muted)}.rtg-example-title svg{color:var(--indigo)}.rtg-example-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.rtg-example-cell{flex:1;min-width:200px;padding:14px 16px;border-radius:var(--rtg-radius-sm);background:var(--rtg-surface-2);border:1px solid var(--rtg-divider)}.rtg-example-label{display:block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--rtg-text-muted);margin-bottom:6px}.rtg-example-text{font-size:18px;font-weight:600;color:var(--rtg-text-main);word-break:break-word}.rtg-example-text--result{background:var(--rtg-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.rtg-example-arrow{color:var(--rtg-text-muted);flex-shrink:0;display:flex;align-items:center}.rtg-content-section{max-width:860px;margin:48px auto 0;display:flex;flex-direction:column;gap:20px}.rtg-content-intro{text-align:center;max-width:640px;margin:0 auto 4px}.rtg-content-intro h2{font-family:var(--font-display);font-size:clamp(22px, 3vw, 30px);font-weight:800;color:var(--rtg-text-main);letter-spacing:-.02em;margin:0}.rtg-content-card{background:var(--rtg-card-bg);border:1px solid var(--rtg-card-border);border-radius:var(--rtg-radius);box-shadow:var(--rtg-card-shadow);padding:28px 30px;transition:border-color var(--rtg-transition),box-shadow var(--rtg-transition)}.rtg-content-card:hover{border-color:var(--rtg-card-border-hover)}.rtg-content-card-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}.rtg-content-card-icon{width:38px;height:38px;border-radius:var(--rtg-radius-sm);background:var(--indigo-light);color:var(--indigo);display:flex;align-items:center;justify-content:center;flex-shrink:0}[data-theme=dark] .rtg-content-card-icon{background:rgba(68,97,242,.2);color:#818cf8}.rtg-content-card h2{font-family:var(--font-display);font-size:clamp(20px, 2.4vw, 25px);font-weight:800;color:var(--rtg-text-main);letter-spacing:-.02em;line-height:1.3;margin:0}.rtg-content-card p{font-size:15px;color:var(--rtg-text-sub);line-height:1.75;margin:0 0 14px}.rtg-content-card p:last-child{margin-bottom:0}.rtg-content-card strong{color:var(--rtg-text-main);font-weight:600}.rtg-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:6px}.rtg-step{display:flex;align-items:flex-start;gap:12px;padding:16px;border-radius:var(--rtg-radius-sm);background:var(--rtg-surface-2);border:1px solid var(--rtg-divider);transition:border-color var(--rtg-transition),transform var(--rtg-transition)}.rtg-step:hover{border-color:var(--rtg-card-border-hover);transform:translateY(-2px)}.rtg-step-num{width:30px;height:30px;border-radius:999px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:13px;font-weight:800;color:#fff;background:var(--rtg-grad)}.rtg-step-body h3{font-size:14.5px;font-weight:700;color:var(--rtg-text-main);margin:0 0 4px;letter-spacing:-.01em}.rtg-step-body p{font-size:13.5px;color:var(--rtg-text-sub);line-height:1.6;margin:0}.rtg-list{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:8px 20px;margin:4px 0 14px}.rtg-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--rtg-text-sub);line-height:1.55}.rtg-list li::before{content:'';position:absolute;left:4px;top:8px;width:8px;height:8px;border-radius:50%;background:var(--rtg-grad)}.rtg-cta{position:relative;overflow:hidden;text-align:center;padding:40px 30px;border-radius:var(--rtg-radius);background:var(--grad-soft);border:1px solid rgba(68,97,242,.16)}[data-theme=dark] .rtg-cta{background:rgba(68,97,242,.12);border-color:rgba(129,140,248,.28)}.rtg-cta::before{content:'';position:absolute;top:-70px;right:-70px;width:220px;height:220px;border-radius:50%;background:var(--rtg-grad);opacity:.1;pointer-events:none}.rtg-cta h2{font-family:var(--font-display);font-size:clamp(21px, 2.6vw, 28px);font-weight:800;color:var(--rtg-text-main);line-height:1.25;letter-spacing:-.02em;margin:0 0 12px}.rtg-cta p{font-size:15px;color:var(--rtg-text-sub);line-height:1.75;margin:0 auto;max-width:620px}.rtg-toast{position:fixed;bottom:28px;right:28px;display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:12px;background:var(--rtg-card-bg);border:1px solid var(--rtg-card-border);box-shadow:0 10px 35px rgba(0,0,0,.18);font-size:13.5px;font-weight:600;color:var(--rtg-text-main);z-index:9999;transform:translateY(80px);opacity:0;transition:.3s cubic-bezier(.16, 1, .3, 1);pointer-events:none;max-width:340px}.rtg-toast.show{transform:translateY(0);opacity:1}.rtg-toast-icon{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.rtg-toast--success .rtg-toast-icon{background:var(--rtg-green-bg);color:var(--rtg-green)}.rtg-toast--error .rtg-toast-icon{background:var(--rtg-rose-bg);color:var(--rtg-rose)}@media (max-width:920px){.rtg-workspace{grid-template-columns:1fr}.rtg-example{grid-column:auto}}@media (max-width:768px){.rtg-page-wrapper{padding:90px 0 60px}.rtg-page-wrapper .reveal{opacity:1;transform:none;transition:none}.rtg-card-footer,.rtg-card-header{padding:12px 16px}.rtg-textarea-wrap{padding:0 16px}#rtg-input,#rtg-output{min-height:150px;height:150px;padding:16px 18px;font-size:15px}#rtg-input{padding-right:46px}.rtg-copy-input{top:16px;right:28px}.rtg-content-section{margin-top:36px}.rtg-content-card{padding:24px 20px}.rtg-list,.rtg-steps{grid-template-columns:1fr}.rtg-cta{padding:32px 22px}}.tool-card{background:#fff!important}@media (max-width:600px){.rtg-header h1{font-size:clamp(24px, 6.5vw, 34px)}.rtg-mode-actions{flex-direction:column;align-items:stretch;gap:10px}.rtg-mode-btn{width:100%;padding:14px 20px;font-size:15px}.rtg-example-row{flex-direction:column;align-items:stretch}.rtg-example-arrow{transform:rotate(90deg);justify-content:center}.rtg-toast{bottom:16px;right:16px;left:16px;max-width:calc(100% - 32px)}}@media (max-width:480px){#rtg-btn-clear span,.rtg-action-btn .rtg-btn-label,.rtg-header-actions .rtg-btn-label{display:none}}