:root{--bg-base: #0f1117;--bg-panel: #171a23;--bg-elevated: #1e222e;--bg-hover: #252a38;--border: #2a2f3d;--border-hover: #3a4154;--text-primary: #e4e7ee;--text-secondary: #9398a8;--text-muted: #5d6275;--accent: #3b9eff;--accent-hover: #5ab0ff;--accent-press: #2a8def;--success: #34d399;--error: #f87171;--error-bg: rgba(248, 113, 113, .08);--copy-success: #34d399;--radius: 10px;--radius-sm: 6px;--font-mono: "SF Mono", "Fira Code", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;--font-sans: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-base);color:var(--text-primary);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{flex:1;display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;gap:12px;padding:18px 28px;border-bottom:1px solid var(--border);background-color:var(--bg-panel)}.app-logo{font-size:1.35rem;font-weight:700;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}.app-logo .badge{width:32px;height:32px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--accent),#2563eb);font-size:.8rem;font-family:var(--font-mono);color:#fff;display:inline-flex;align-items:center;justify-content:center}.app-logo .header-icon{display:block;flex-shrink:0}.app-logo .name{color:var(--text-primary)}.app-logo .tag{font-size:.7rem;font-weight:500;color:var(--text-muted);background:var(--bg-elevated);padding:3px 8px;border-radius:20px;border:1px solid var(--border)}.app-header{justify-content:space-between}.help-btn{width:32px;height:32px;border-radius:50%;border:1px solid var(--border);background-color:var(--bg-elevated);color:var(--text-secondary);font-size:.95rem;font-weight:700;font-family:var(--font-sans);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:color .15s,border-color .15s,transform .15s,box-shadow .15s}.help-btn:hover{color:var(--accent);border-color:var(--accent);transform:scale(1.1);box-shadow:0 0 12px #3b9eff59}.help-btn:active{transform:scale(1.05)}.help-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.help-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:10000;opacity:0;pointer-events:none;transition:opacity .2s ease}.help-overlay.active{opacity:1;pointer-events:auto}.help-modal{background-color:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 16px 64px #00000080;width:90%;max-width:460px;max-height:85vh;overflow-y:auto;transform:scale(.96) translateY(8px);transition:transform .2s cubic-bezier(.2,.8,.2,1)}.help-overlay.active .help-modal{transform:scale(1) translateY(0)}.help-modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}.help-modal-title{font-size:1.05rem;font-weight:700;color:var(--text-primary)}.help-close-btn{width:30px;height:30px;border-radius:var(--radius-sm);border:1px solid var(--border);background-color:var(--bg-elevated);color:var(--text-secondary);font-size:.85rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .15s,border-color .15s,color .15s}.help-close-btn:hover{background-color:var(--bg-hover);border-color:var(--border-hover);color:var(--text-primary)}.help-close-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.help-modal-body{padding:20px 22px 24px}.help-category{margin-bottom:20px}.help-category:last-child{margin-bottom:0}.help-category-title{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:10px}.help-shortcut-row{display:flex;align-items:center;justify-content:space-between;padding:7px 0}.help-shortcut-row+.help-shortcut-row{border-top:1px solid rgba(255,255,255,.04)}.help-action{font-size:.875rem;color:var(--text-secondary);font-weight:500}.help-key{font-family:var(--font-mono);font-size:.75rem;font-weight:600;color:var(--text-primary);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);padding:3px 10px;white-space:nowrap}.tab-bar{display:flex;gap:0;padding:0 28px;background-color:var(--bg-panel);border-bottom:1px solid var(--border)}.tab{padding:12px 22px;font-size:.875rem;font-weight:600;font-family:var(--font-sans);background:none;border:none;border-bottom:2px solid transparent;color:var(--text-muted);cursor:pointer;transition:color .15s,border-color .15s,background-color .15s;margin-bottom:-1px;border-radius:0}.tab:hover{color:var(--text-secondary);background-color:#ffffff05}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.view-container{display:none;flex:1;flex-direction:column;overflow:hidden}.view-container.active{display:flex;animation:viewFadeIn .28s cubic-bezier(.2,.8,.2,1)}@keyframes viewFadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;font-size:.875rem;font-weight:600;font-family:var(--font-sans);border:1px solid var(--border);border-radius:var(--radius-sm);background-color:var(--bg-elevated);color:var(--text-primary);cursor:pointer;transition:background-color .15s,border-color .15s,transform .08s;-webkit-user-select:none;user-select:none;white-space:nowrap}.btn:hover{border-color:var(--border-hover);background-color:var(--bg-hover)}.btn:active{transform:scale(.97)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background-color:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background-color:var(--accent-hover);border-color:var(--accent-hover)}.btn-primary:active{background-color:var(--accent-press)}.btn-ghost{background-color:transparent}.btn-ghost:hover{background-color:var(--bg-elevated)}.btn .icon{font-size:1rem;line-height:1}#toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:10px;z-index:9999;pointer-events:none}.toast{display:flex;align-items:center;gap:8px;padding:12px 18px;border-radius:var(--radius-sm);background-color:var(--bg-elevated);border:1px solid var(--border);border-left:3px solid var(--success);color:var(--text-primary);font-size:.875rem;font-weight:500;font-family:var(--font-sans);box-shadow:0 8px 32px #0006;opacity:0;transform:translate(100%);transition:opacity .25s ease,transform .25s cubic-bezier(.2,.8,.2,1);pointer-events:none;white-space:nowrap}.toast.toast-show{opacity:1;transform:translate(0)}.toast.toast-hide{opacity:0;transform:translate(100%)}.toast-error{border-left-color:var(--error)}.toolbar{display:flex;align-items:center;gap:10px;padding:14px 28px;background-color:var(--bg-panel);border-bottom:1px solid var(--border);flex-wrap:wrap}.toolbar-spacer{flex:1}.panels{display:flex;flex:1;gap:1px;background-color:var(--border);overflow:hidden}.panel{flex:1;display:flex;flex-direction:column;background-color:var(--bg-base);min-width:0}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;background-color:var(--bg-panel);border-bottom:1px solid var(--border)}.panel-title{font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary)}.panel-meta{font-size:.75rem;font-family:var(--font-mono);color:var(--text-muted)}.panel-meta .sep{margin:0 6px;color:var(--border)}.textarea-wrap{flex:1;position:relative;overflow:hidden}textarea{width:100%;height:100%;padding:18px 20px;border:none;background-color:var(--bg-base);color:var(--text-primary);font-family:var(--font-mono);font-size:.875rem;line-height:1.6;resize:none;outline:none;-moz-tab-size:2;tab-size:2;caret-color:var(--accent)}textarea::placeholder{color:var(--text-muted)}textarea::-webkit-scrollbar{width:10px;height:10px}textarea::-webkit-scrollbar-track{background:var(--bg-base)}textarea::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px;border:2px solid var(--bg-base)}textarea::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.error-overlay{position:absolute;left:0;right:0;height:1.6em;background-color:var(--error-bg);border-left:3px solid var(--error);pointer-events:none;display:none;z-index:1}.status-bar{display:flex;align-items:center;gap:12px;padding:10px 28px;background-color:var(--bg-panel);border-top:1px solid var(--border);font-size:.8rem;min-height:42px}.status-icon{font-size:1rem;line-height:1}.status-message{flex:1;color:var(--text-secondary);font-family:var(--font-mono);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.status-message.success{color:var(--success)}.status-message.error{color:var(--error)}.status-stats{display:flex;gap:20px;font-family:var(--font-mono);color:var(--text-muted);white-space:nowrap}.stat-group{display:flex;align-items:center;gap:6px}.stat-label{color:var(--text-muted)}.stat-value{color:var(--text-secondary);font-weight:600}#color-view{overflow-y:auto}.color-view-content{max-width:720px;margin:0 auto;padding:32px 24px 48px;width:100%}.color-preview-section{display:flex;align-items:center;gap:20px;margin-bottom:28px}.color-preview{flex:1;height:160px;border-radius:var(--radius);border:1px solid var(--border);transition:background-color .2s ease;box-shadow:0 4px 24px #0000004d}.color-picker-area{display:flex;flex-direction:column;align-items:center;gap:10px;flex-shrink:0}#color-picker{width:64px;height:64px;border:2px solid var(--border);border-radius:var(--radius-sm);background:none;cursor:pointer;padding:4px;transition:border-color .15s,transform .12s}#color-picker:hover{border-color:var(--border-hover);transform:scale(1.05)}#color-picker::-webkit-color-swatch-wrapper{padding:0}#color-picker::-webkit-color-swatch{border:none;border-radius:4px}#color-picker::-moz-color-swatch{border:none;border-radius:4px}.color-picker-hint{font-size:.75rem;color:var(--text-muted);text-align:center}.color-values{margin-bottom:20px}.value-row{display:flex;align-items:center;gap:14px;margin-bottom:10px}.value-label{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);width:48px;flex-shrink:0;font-family:var(--font-mono)}.value-input{flex:1;padding:10px 14px;background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-mono);font-size:.875rem;outline:none;transition:border-color .15s,background-color .15s}.value-input:focus{border-color:var(--accent);background-color:var(--bg-hover)}.value-input.invalid{border-color:var(--error)}.color-actions{display:flex;gap:12px;margin-bottom:32px}.color-section{margin-bottom:28px}.color-section-title{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);margin-bottom:14px}.swatch-row{display:flex;gap:12px;flex-wrap:wrap}.swatch{width:56px;height:56px;border-radius:var(--radius-sm);border:1px solid var(--border);cursor:pointer;transition:transform .12s ease,border-color .15s,box-shadow .15s;position:relative}.swatch:hover{transform:scale(1.1);border-color:var(--border-hover);box-shadow:0 4px 12px #0000004d}.swatch-empty{background:var(--bg-elevated)!important;border:1px dashed var(--border);cursor:default}.swatch-empty:hover{transform:none;border-color:var(--border);box-shadow:none}.complementary-swatch{display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer}.complementary-swatch .swatch{width:72px;height:72px}.complementary-swatch .swatch-hex{font-size:.75rem;font-family:var(--font-mono);color:var(--text-secondary);transition:color .15s}.complementary-swatch:hover .swatch-hex{color:var(--text-primary)}.color-status{margin-top:8px;padding:12px 16px;background-color:var(--bg-panel);border-radius:var(--radius-sm);border:1px solid var(--border);font-size:.8rem;color:var(--text-secondary);font-family:var(--font-mono);transition:color .15s,border-color .15s}.color-status.success{color:var(--success);border-color:#34d3994d}.color-status.error{color:var(--error);border-color:#f871714d}#color-view::-webkit-scrollbar{width:10px}#color-view::-webkit-scrollbar-track{background:var(--bg-base)}#color-view::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px;border:2px solid var(--bg-base)}#color-view::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}#regex-view{overflow-y:auto}.regex-view-content{max-width:720px;margin:0 auto;padding:32px 24px 48px;width:100%}.regex-pattern-row{display:flex;align-items:center;gap:8px;margin-bottom:16px}.regex-delimiter{font-family:var(--font-mono);font-size:1.2rem;color:var(--text-muted);flex-shrink:0}.regex-input{flex:1;padding:10px 14px;background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-mono);font-size:.875rem;outline:none;transition:border-color .15s,background-color .15s;min-width:0}.regex-input:focus{border-color:var(--accent);background-color:var(--bg-hover)}.regex-flags{display:flex;gap:6px;flex-shrink:0}.flag-label{display:inline-flex;align-items:center;gap:4px;padding:6px 10px;background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.8rem;font-weight:700;color:var(--text-secondary);cursor:pointer;transition:border-color .15s,color .15s}.flag-label:hover{border-color:var(--border-hover);color:var(--text-primary)}.flag-label input[type=checkbox]{margin:0;width:14px;height:14px;accent-color:var(--accent);cursor:pointer}.regex-presets-row{display:flex;align-items:center;gap:12px;margin-bottom:20px}.regex-presets-label{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);flex-shrink:0}.regex-select{flex:1;padding:9px 14px;background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-sans);font-size:.875rem;outline:none;cursor:pointer;transition:border-color .15s}.regex-select:focus{border-color:var(--accent)}.regex-select option{background-color:var(--bg-panel);color:var(--text-primary)}.regex-field{margin-bottom:20px}.regex-field-label{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);margin-bottom:8px}.regex-textarea{width:100%;min-height:140px;padding:14px 16px;background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-mono);font-size:.875rem;line-height:1.6;resize:vertical;outline:none;transition:border-color .15s,background-color .15s}.regex-textarea:focus{border-color:var(--accent);background-color:var(--bg-hover)}.regex-textarea::placeholder{color:var(--text-muted)}.regex-status{margin-bottom:20px;padding:12px 16px;background-color:var(--bg-panel);border-radius:var(--radius-sm);border:1px solid var(--border);font-size:.8rem;color:var(--text-secondary);font-family:var(--font-mono);transition:color .15s,border-color .15s}.regex-status.success{color:var(--success);border-color:#34d3994d}.regex-status.error{color:var(--error);border-color:#f871714d}.regex-results-section{margin-bottom:16px}.regex-results{display:flex;flex-direction:column;gap:10px}.regex-results:empty:after{content:"No matches to display yet.";font-size:.8rem;color:var(--text-muted);font-family:var(--font-mono)}.regex-match-card{background-color:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;transition:border-color .15s}.regex-match-card:hover{border-color:var(--border-hover)}.regex-match-header{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.regex-match-num{font-size:.75rem;font-weight:700;color:var(--accent);font-family:var(--font-mono);flex-shrink:0}.regex-match-text{font-family:var(--font-mono);font-size:.875rem;color:var(--text-primary);background-color:var(--bg-base);padding:3px 8px;border-radius:4px;border:1px solid var(--border);word-break:break-all}.regex-match-pos{font-size:.75rem;color:var(--text-muted);font-family:var(--font-mono);margin-left:auto}.regex-match-groups{margin-top:10px;padding-top:10px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:6px}.regex-match-group{display:flex;align-items:baseline;gap:10px;padding-left:8px}.regex-group-label{font-size:.75rem;font-weight:600;color:var(--text-secondary);font-family:var(--font-mono);flex-shrink:0}.regex-group-value{font-family:var(--font-mono);font-size:.8rem;color:var(--text-primary);background-color:var(--bg-base);padding:2px 6px;border-radius:4px;word-break:break-all}#regex-view::-webkit-scrollbar{width:10px}#regex-view::-webkit-scrollbar-track{background:var(--bg-base)}#regex-view::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px;border:2px solid var(--bg-base)}#regex-view::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}@media(max-width:768px){.app-header{padding:14px 16px}.tab-bar{padding:0 16px}.tab{padding:10px 16px;font-size:.82rem}.toolbar{padding:12px 16px;gap:8px}.btn{padding:8px 14px;font-size:.82rem}.panels{flex-direction:column}.panel{min-height:240px}.status-bar{padding:10px 16px;flex-wrap:wrap;gap:8px}.status-stats{gap:12px;font-size:.75rem}.app-logo .tag{display:none}.color-view-content{padding:20px 16px 40px}.color-preview-section{flex-direction:column;align-items:stretch;gap:16px}.color-preview{height:120px}.color-picker-area{flex-direction:row;justify-content:center}.color-actions{flex-direction:column}.color-actions .btn{width:100%;justify-content:center}.regex-view-content{padding:20px 16px 40px}.regex-pattern-row{flex-wrap:wrap}.regex-input{flex:1 1 100%;order:-1}.regex-match-pos{margin-left:0}}