:root{--bg-primary: #0f1117;--bg-secondary: #1a1d27;--bg-surface: #22262f;--bg-elevated: #2a2e3a;--bg-glass: rgba(30, 34, 46, .7);--border-subtle: rgba(255, 255, 255, .06);--border-glass: rgba(255, 255, 255, .1);--text-primary: #e8eaf0;--text-secondary: #9ca3b4;--text-muted: #636b7e;--accent: #6366f1;--accent-hover: #818cf8;--accent-glow: rgba(99, 102, 241, .35);--accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 2px 8px rgba(0,0,0,.25);--shadow-md: 0 4px 20px rgba(0,0,0,.35);--shadow-glow: 0 0 20px var(--accent-glow);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Courier New", monospace;--sidebar-width: 260px;--transition: .25s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}.sidebar-brand{padding:24px 20px 20px;border-bottom:1px solid var(--border-subtle)}.sidebar-brand h1{font-size:1.35rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.sidebar-brand p{font-size:.75rem;color:var(--text-muted);margin-top:4px}.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);font-size:.875rem;font-weight:500;transition:all var(--transition);border:1px solid transparent;text-decoration:none}.nav-item:hover{background:#6366f114;color:var(--text-primary)}.nav-item.active{background:#6366f11f;color:#a5b4fc;border-color:#6366f133;box-shadow:var(--shadow-glow)}.nav-item svg{width:20px;height:20px;flex-shrink:0;opacity:.7;transition:opacity var(--transition)}.nav-item.active svg,.nav-item:hover svg{opacity:1}.sidebar-footer{padding:16px 20px;border-top:1px solid var(--border-subtle);font-size:.7rem;color:var(--text-muted);text-align:center}.main-content{margin-left:var(--sidebar-width);flex:1;padding:32px 40px;min-height:100vh}.tool-section{display:none;animation:fadeIn .35s ease}.tool-section.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tool-header{margin-bottom:28px}.tool-header h2{font-size:1.6rem;font-weight:700;color:var(--text-primary);margin-bottom:6px}.tool-header p{color:var(--text-secondary);font-size:.9rem}.glass-card{background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:24px;margin-bottom:20px;transition:box-shadow var(--transition)}.glass-card:hover{box-shadow:0 4px 30px #0003}input[type=text],input[type=number],input[type=datetime-local],textarea,select{width:100%;background:var(--bg-surface);border:1px solid var(--border-glass);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text-primary);font-family:var(--font-sans);font-size:.9rem;transition:border-color var(--transition),box-shadow var(--transition);outline:none}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}input[readonly]{color:var(--text-secondary);cursor:default}textarea{resize:vertical;min-height:80px;font-family:var(--font-mono);font-size:.85rem;line-height:1.6}label{display:block;font-size:.78rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:.85rem;font-weight:600;cursor:pointer;border:none;transition:all var(--transition)}.btn-primary{background:var(--accent-gradient);color:#fff}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border-glass)}.btn-secondary:hover{background:var(--bg-surface);color:var(--text-primary)}.btn-danger{background:#ef444426;color:var(--danger);border:1px solid rgba(239,68,68,.2)}.btn-danger:hover{background:#ef444440}.btn:focus-visible,.btn-link:focus-visible,.btn-icon:focus-visible,.cron-preset-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-sm{padding:6px 12px;font-size:.78rem}.btn-link{background:none;border:none;color:var(--accent);font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;cursor:pointer;padding:2px 4px;border-radius:4px;transition:all var(--transition)}.btn-link:hover{background:#6366f11a;color:var(--accent-hover)}.btn-icon{padding:8px;border-radius:var(--radius-sm);background:var(--bg-elevated);border:1px solid var(--border-glass);color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.btn-icon:hover{color:var(--text-primary);border-color:var(--accent)}.hidden{display:none!important}.flex-row{display:flex;gap:12px;align-items:center}.flex-col{display:flex;flex-direction:column;gap:12px}.flex-between{display:flex;justify-content:space-between;align-items:center}.flex-wrap{flex-wrap:wrap}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:600}.badge-accent{background:#6366f126;color:#a5b4fc}.badge-success{background:#22c55e26;color:#4ade80}.badge-danger{background:#ef444426;color:#f87171}.error-msg{color:var(--danger);font-size:.82rem;font-weight:600;margin-top:6px}.mono{font-family:var(--font-mono)}.copy-toast{position:fixed;bottom:30px;right:30px;background:var(--bg-elevated);color:var(--success);padding:10px 20px;border-radius:var(--radius-md);font-size:.85rem;font-weight:600;box-shadow:var(--shadow-md);border:1px solid rgba(34,197,94,.2);opacity:0;transform:translateY(10px);transition:all .3s ease;z-index:999;pointer-events:none}.copy-toast.show{opacity:1;transform:translateY(0)}.md-workspace{display:flex;gap:16px;height:65vh}.md-pane{flex:1;display:flex;flex-direction:column;border:1px solid var(--border-glass);border-radius:var(--radius-md);overflow:hidden;background:var(--bg-surface)}.md-pane-header{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:var(--bg-elevated);border-bottom:1px solid var(--border-subtle);font-size:.8rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em}.md-toolbar{display:flex;gap:4px}#markdownInput{flex:1;border:none;background:var(--bg-surface);padding:16px;resize:none;min-height:0}#markdownInput:focus{box-shadow:none;border-color:var(--accent)}.md-preview{flex:1;padding:20px;overflow-y:auto;line-height:1.7;color:var(--text-primary)}.md-preview h1,.md-preview h2,.md-preview h3{margin:.8em 0 .4em;color:var(--text-primary)}.md-preview h1{font-size:1.6em;border-bottom:1px solid var(--border-subtle);padding-bottom:.3em}.md-preview h2{font-size:1.3em;border-bottom:1px solid var(--border-subtle);padding-bottom:.2em}.md-preview h3{font-size:1.1em}.md-preview p{margin:.6em 0}.md-preview ul,.md-preview ol{padding-left:1.5em;margin:.5em 0}.md-preview li{margin:.25em 0}.md-preview a{color:var(--accent-hover);text-decoration:underline}.md-preview code{background:var(--bg-elevated);padding:2px 6px;border-radius:4px;font-family:var(--font-mono);font-size:.85em;color:#c4b5fd}.md-preview pre{background:var(--bg-elevated);border-radius:var(--radius-sm);padding:14px;overflow-x:auto;margin:.8em 0}.md-preview pre code{background:none;padding:0}.md-preview blockquote{border-left:3px solid var(--accent);padding:4px 16px;margin:.6em 0;color:var(--text-secondary);background:#6366f10d;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.md-preview table{border-collapse:collapse;width:100%;margin:.8em 0}.md-preview th,.md-preview td{border:1px solid var(--border-glass);padding:8px 12px;text-align:left}.md-preview th{background:var(--bg-elevated);font-weight:600}.md-preview img{max-width:100%;border-radius:var(--radius-sm)}.regex-input-row{display:flex;align-items:center;background:var(--bg-surface);border:2px solid var(--border-glass);border-radius:var(--radius-md);padding:4px 14px;transition:border-color var(--transition)}.regex-input-row:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.regex-slash{font-size:1.4rem;font-family:var(--font-mono);color:var(--text-muted);font-weight:700;-webkit-user-select:none;user-select:none}#regexPattern{flex:1;border:none;background:transparent;padding:10px 8px;font-family:var(--font-mono);font-size:1rem;color:#a5b4fc}#regexPattern:focus{box-shadow:none}#regexFlags{width:48px;border:none;background:transparent;padding:10px 4px;font-family:var(--font-mono);font-size:1rem;color:#c084fc;text-align:center}#regexFlags:focus{box-shadow:none}.regex-editor-container{position:relative;height:220px;border:1px solid var(--border-glass);border-radius:var(--radius-md);background:var(--bg-surface);overflow:hidden}#regexTestString,#regexHighlightLayer{position:absolute;top:0;left:0;width:100%;height:100%;padding:14px;font-family:var(--font-mono);font-size:.9rem;line-height:1.6;white-space:pre-wrap;word-wrap:break-word;border:none}#regexTestString{color:transparent;background:transparent;caret-color:var(--text-primary);resize:none;z-index:2;min-height:100%}#regexTestString:focus{box-shadow:none}#regexHighlightLayer{color:var(--text-primary);z-index:1;overflow-y:auto;pointer-events:none}.regex-match-hl{background:#8b5cf64d;border-radius:3px;outline:1px solid rgba(139,92,246,.5)}.match-details-list{display:flex;flex-direction:column;gap:6px;max-height:180px;overflow-y:auto}.match-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg-surface);border-radius:var(--radius-sm);font-size:.82rem}.match-item .match-index{color:var(--text-muted);font-weight:600;min-width:24px}.match-item .match-value{font-family:var(--font-mono);color:#c4b5fd}.match-item .match-range{margin-left:auto;color:var(--text-muted);font-size:.75rem}.epoch-live-display{text-align:center;padding:24px}.epoch-live-display .epoch-number{font-family:var(--font-mono);font-size:2.4rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.epoch-live-display .epoch-date{color:var(--text-secondary);font-size:.9rem;margin-top:6px}.conversion-grid{display:grid;grid-template-columns:1fr 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var(--border-glass);transition:all var(--transition)}.cron-preset-btn:hover{background:#6366f11f;color:#a5b4fc;border-color:#6366f14d}.next-runs-list{list-style:none;display:flex;flex-direction:column;gap:6px}.next-runs-list li{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg-surface);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.82rem;color:var(--text-secondary)}.next-runs-list li .run-index{color:var(--text-muted);font-weight:700;min-width:20px}.ad-banner{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:16px;text-align:center;color:var(--text-muted);font-size:.8rem;margin-top:32px}.mobile-menu-btn{display:none;position:fixed;top:14px;left:14px;z-index:200;background:var(--bg-elevated);border:1px solid var(--border-glass);color:var(--text-primary);padding:10px;border-radius:var(--radius-sm);cursor:pointer}@media (max-width: 768px){.mobile-menu-btn{display:flex}.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0;padding:60px 16px 20px}.md-workspace{flex-direction:column;height:auto}.md-pane{min-height:300px}.conversion-grid{grid-template-columns:1fr}.cron-fields-grid{grid-template-columns:repeat(5,1fr);gap:6px}.url-components-grid{grid-template-columns:1fr}}.jwt-parts-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}.jwt-json{background:var(--bg-primary);border-radius:var(--radius-sm);padding:12px;font-family:var(--font-mono);font-size:.78rem;line-height:1.6;color:#a5b4fc;overflow-x:auto;white-space:pre;margin:0}.badge-valid{background:#22c55e26;color:var(--success);border:1px solid rgba(34,197,94,.25);padding:2px 10px;border-radius:20px;font-size:.72rem;font-weight:600}.badge-expired{background:#ef444426;color:var(--danger);border:1px solid rgba(239,68,68,.25);padding:2px 10px;border-radius:20px;font-size:.72rem;font-weight:600}.jwt-timestamps{margin-top:12px}.jwt-ts-list{list-style:none;display:flex;flex-direction:column;gap:6px}.jwt-ts-row{display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--text-secondary);border-top:1px solid var(--border-subtle);padding-top:6px}.jwt-ts-key{font-weight:600;color:var(--text-muted);text-transform:uppercase;font-size:.72rem;letter-spacing:.04em}.color-input-row{display:flex;align-items:center;gap:12px;margin-top:8px}#colorPicker{width:48px;height:48px;border:none;border-radius:var(--radius-md);cursor:pointer;padding:2px;background:var(--bg-elevated);flex-shrink:0}#colorPicker::-webkit-color-swatch-wrapper{padding:0;border-radius:var(--radius-sm)}#colorPicker::-webkit-color-swatch{border:none;border-radius:var(--radius-sm)}.color-swatch-row{display:flex;align-items:center;gap:20px;margin-bottom:16px}.color-swatch{width:80px;height:80px;border-radius:var(--radius-md);border:1px solid var(--border-glass);flex-shrink:0;box-shadow:var(--shadow-md)}.color-swatch-label{font-family:var(--font-mono);font-size:1.4rem;font-weight:700;color:var(--text-primary);letter-spacing:.04em}.color-formats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.hash-algo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}.hash-algo-option{display:flex;flex-direction:column;gap:4px;padding:12px;background:var(--bg-primary);border:1px solid var(--border-glass);border-radius:var(--radius-sm);cursor:pointer;font-size:.88rem;font-weight:600;color:var(--text-secondary);transition:border-color var(--transition),color var(--transition)}.hash-algo-option:has(input:checked){border-color:var(--accent);color:var(--text-primary)}.hash-algo-option input[type=radio]{display:none}.hash-algo-note{font-size:.7rem;font-weight:400;color:var(--text-muted)}@media (max-width: 768px){.jwt-parts-grid,.color-formats-grid{grid-template-columns:1fr}.hash-algo-grid{grid-template-columns:repeat(2,1fr)}}.diff-inputs-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}.diff-stats{display:flex;gap:10px;align-items:center}.diff-stat{font-size:.75rem;font-weight:600;padding:2px 10px;border-radius:20px}.diff-stat-added{background:#22c55e1f;color:var(--success);border:1px solid rgba(34,197,94,.25)}.diff-stat-removed{background:#ef44441f;color:var(--danger);border:1px solid rgba(239,68,68,.25)}.diff-stat-equal{background:var(--bg-primary);color:var(--text-muted);border:1px solid var(--border-subtle)}.diff-output{background:var(--bg-primary);border-radius:var(--radius-sm);overflow-x:auto;max-height:420px;overflow-y:auto}.diff-empty{padding:20px;color:var(--text-muted);font-size:.85rem}.diff-line{display:block;padding:2px 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6px;border-radius:4px;text-transform:none;letter-spacing:0}.bit-grid{display:flex;flex-direction:column;gap:10px;margin-top:8px}.bit-label{font-size:.7rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px}.bit-display{font-family:var(--font-mono);font-size:.82rem;color:#a5b4fc;letter-spacing:.12em;word-break:break-all;min-height:1.4em}.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.case-card{padding:14px 16px}@media (max-width: 768px){.diff-inputs-grid,.base-inputs-grid,.case-grid{grid-template-columns:1fr}}*{scrollbar-width:thin;scrollbar-color:var(--bg-elevated) transparent}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}