:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--bg-glass: rgba(30, 41, 59, .7);--bg-glass-hover: rgba(51, 65, 85, .8);--accent-cyan: #06b6d4;--accent-purple: #a855f7;--accent-pink: #ec4899;--accent-green: #10b981;--accent-yellow: #f59e0b;--accent-red: #ef4444;--gradient-primary: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));--gradient-secondary: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-tertiary: #64748b;--text-muted: #475569;--border-color: rgba(148, 163, 184, .1);--border-glow: rgba(6, 182, 212, .3);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .6);--shadow-glow: 0 0 20px rgba(6, 182, 212, .2);--sidebar-width: 260px;--sidebar-collapsed: 70px;--header-height: 64px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px}[data-theme=light]{--bg-primary: #f1f5f9;--bg-secondary: #ffffff;--bg-tertiary: #e2e8f0;--bg-glass: rgba(255, 255, 255, .8);--bg-glass-hover: rgba(241, 245, 249, .9);--text-primary: #0f172a;--text-secondary: #475569;--text-tertiary: #64748b;--text-muted: #94a3b8;--border-color: rgba(15, 23, 42, .1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .15)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at 20% 20%,rgba(6,182,212,.08) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(168,85,247,.08) 0%,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(15,23,42,0) 0%,var(--bg-primary) 100%);pointer-events:none;z-index:-1}#app{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);height:100vh;position:fixed;left:0;top:0;background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--border-color);display:flex;flex-direction:column;z-index:100;transition:width var(--transition-normal),transform var(--transition-normal)}.sidebar.collapsed{width:var(--sidebar-collapsed)}.sidebar.collapsed .logo-text,.sidebar.collapsed .nav-item span,.sidebar.collapsed .nav-item kbd,.sidebar.collapsed .nav-section-title,.sidebar.collapsed .privacy-badge span{opacity:0;width:0;overflow:hidden}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--border-color)}.logo{display:flex;align-items:center;gap:12px}.logo-icon{width:32px;height:32px;flex-shrink:0}.logo-text{font-size:1.25rem;font-weight:700;white-space:nowrap;transition:opacity var(--transition-fast),width var(--transition-fast)}.logo-text .accent{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-toggle{width:32px;height:32px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.sidebar-toggle:hover{background:var(--bg-tertiary);color:var(--text-primary)}.sidebar-toggle svg{width:18px;height:18px;transition:transform var(--transition-normal)}.sidebar.collapsed .sidebar-toggle svg{transform:rotate(180deg)}.nav-tools{flex:1;padding:16px 12px;overflow-y:auto}.nav-section-title{display:block;font-size:.75rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;padding:8px 12px;transition:opacity var(--transition-fast)}.nav-list{list-style:none}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;margin:4px 0;border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);position:relative;overflow:hidden}.nav-item:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;background:var(--gradient-primary);border-radius:0 2px 2px 0;transition:height var(--transition-fast)}.nav-item:hover,.nav-item.active{background:var(--bg-glass-hover);color:var(--text-primary)}.nav-item.active:before{height:60%}.nav-item svg{width:20px;height:20px;flex-shrink:0}.nav-item span{flex:1;white-space:nowrap;transition:opacity var(--transition-fast),width var(--transition-fast)}.nav-item kbd{font-family:var(--font-mono);font-size:.7rem;padding:2px 6px;background:var(--bg-tertiary);border-radius:var(--radius-sm);color:var(--text-tertiary);transition:opacity var(--transition-fast)}.sidebar-footer{padding:16px 20px;border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.privacy-badge{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--accent-green)}.privacy-badge svg{width:16px;height:16px}.privacy-badge span{white-space:nowrap;transition:opacity var(--transition-fast),width var(--transition-fast)}.theme-toggle{width:36px;height:36px;border:none;background:var(--bg-tertiary);border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all var(--transition-fast)}.theme-toggle:hover{background:var(--bg-glass-hover);color:var(--accent-yellow)}.theme-toggle svg{width:18px;height:18px;position:absolute;transition:opacity var(--transition-fast),transform var(--transition-fast)}.theme-toggle .sun{opacity:0;transform:scale(.5) rotate(-90deg)}.theme-toggle .moon,[data-theme=light] .theme-toggle .sun{opacity:1;transform:scale(1) rotate(0)}[data-theme=light] .theme-toggle .moon{opacity:0;transform:scale(.5) rotate(90deg)}.main-content{flex:1;margin-left:var(--sidebar-width);min-height:100vh;display:flex;flex-direction:column;transition:margin-left var(--transition-normal)}.sidebar.collapsed~.main-content{margin-left:var(--sidebar-collapsed)}.main-header{height:var(--header-height);padding:0 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color);background:var(--bg-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);position:sticky;top:0;z-index:50}.header-left{display:flex;align-items:center;gap:16px}.mobile-menu-btn{display:none;width:40px;height:40px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm)}.mobile-menu-btn svg{width:24px;height:24px}.tool-title{font-size:1.5rem;font-weight:600}.header-actions{display:flex;align-items:center;gap:12px}.cmd-palette-btn{display:flex;align-items:center;gap:10px;padding:8px 16px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.cmd-palette-btn:hover{background:var(--bg-glass-hover);border-color:var(--border-glow);color:var(--text-primary)}.cmd-palette-btn svg{width:16px;height:16px}.cmd-palette-btn span{font-size:.875rem}.cmd-palette-btn kbd{font-family:var(--font-mono);font-size:.7rem;padding:3px 8px;background:var(--bg-secondary);border-radius:var(--radius-sm);color:var(--text-tertiary)}.tool-container{flex:1;padding:24px;overflow-y:auto}.smart-paste-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - var(--header-height) - 48px);text-align:center;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.paste-icon{margin-bottom:24px;animation:pulse 2s infinite}.paste-icon svg{width:80px;height:80px}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.8}}.smart-paste-zone h2{font-size:2rem;font-weight:700;margin-bottom:8px;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.smart-paste-zone p{color:var(--text-secondary);margin-bottom:24px}.supported-formats{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:32px}.format-tag{padding:6px 14px;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:999px;font-size:.8rem;color:var(--text-secondary);transition:all var(--transition-fast)}.format-tag:hover{border-color:var(--accent-cyan);color:var(--accent-cyan)}.paste-input{width:100%;max-width:600px;min-height:150px;padding:20px;background:var(--bg-glass);border:2px dashed var(--border-color);border-radius:var(--radius-lg);color:var(--text-primary);font-family:var(--font-mono);font-size:.9rem;resize:vertical;transition:all var(--transition-fast)}.paste-input:focus{outline:none;border-color:var(--accent-cyan);box-shadow:var(--shadow-glow)}.paste-input::placeholder{color:var(--text-tertiary)}.tool-panel{animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}.panel-actions{display:flex;gap:8px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border:none;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn svg{width:16px;height:16px}.btn-primary{background:var(--gradient-primary);color:#fff}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-glass-hover);border-color:var(--border-glow)}.btn-icon{width:40px;height:40px;padding:0;justify-content:center}.input-group{margin-bottom:16px}.input-label{display:block;font-size:.875rem;font-weight:500;margin-bottom:8px;color:var(--text-secondary)}.input-field{width:100%;padding:12px 16px;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-mono);font-size:.9rem;transition:all var(--transition-fast)}.input-field:focus{outline:none;border-color:var(--accent-cyan);box-shadow:0 0 0 3px #06b6d41a}textarea.input-field{min-height:200px;resize:vertical;line-height:1.5}.code-editor{position:relative;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.code-editor-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color)}.code-editor-title{font-size:.8rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.code-editor-actions{display:flex;gap:8px}.code-editor-btn{padding:6px 12px;background:var(--bg-tertiary);border:none;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.75rem;cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:6px}.code-editor-btn:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.code-editor-btn svg{width:14px;height:14px}.code-content{padding:16px;font-family:var(--font-mono);font-size:.875rem;line-height:1.6;overflow-x:auto;max-height:500px;overflow-y:auto}.code-content pre{margin:0;white-space:pre-wrap;word-break:break-word}.split-view{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media (max-width: 900px){.split-view{grid-template-columns:1fr}}.json-tree{font-family:var(--font-mono);font-size:.875rem;line-height:1.6}.json-tree .key{color:var(--accent-cyan)}.json-tree .string{color:var(--accent-green)}.json-tree .number{color:var(--accent-yellow)}.json-tree .boolean{color:var(--accent-purple)}.json-tree .null{color:var(--accent-red)}.json-tree .bracket{color:var(--text-tertiary)}.json-tree .collapsible{cursor:pointer;user-select:none}.json-tree .collapsible:before{content:"▼";display:inline-block;width:16px;font-size:.7rem;transition:transform var(--transition-fast)}.json-tree .collapsible.collapsed:before{transform:rotate(-90deg)}.json-tree .collapsible.collapsed+.json-content{display:none}.json-tree .json-line{padding-left:20px}.jwt-section{margin-bottom:20px}.jwt-section-header{display:flex;align-items:center;gap:10px;margin-bottom:12px}.jwt-section-title{font-size:.9rem;font-weight:600;color:var(--text-secondary)}.jwt-section-dot{width:10px;height:10px;border-radius:50%}.jwt-section-dot.header{background:var(--accent-red)}.jwt-section-dot.payload{background:var(--accent-purple)}.jwt-section-dot.signature{background:var(--accent-cyan)}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:.8rem;font-weight:500}.status-badge.valid{background:#10b9811a;color:var(--accent-green);border:1px solid rgba(16,185,129,.3)}.status-badge.invalid{background:#ef44441a;color:var(--accent-red);border:1px solid rgba(239,68,68,.3)}.status-badge.expired{background:#f59e0b1a;color:var(--accent-yellow);border:1px solid rgba(245,158,11,.3)}.status-badge svg{width:14px;height:14px}.regex-matches{padding:16px;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg)}.regex-match{display:inline;background:#06b6d433;border-bottom:2px solid var(--accent-cyan);padding:2px 0}.regex-match-group{background:#a855f733;border-bottom:2px solid var(--accent-purple)}.match-info{margin-top:16px;padding-top:16px;border-top:1px solid var(--border-color)}.match-count{font-size:.875rem;color:var(--text-secondary)}.match-count strong{color:var(--accent-cyan)}.timestamp-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:20px}.timestamp-card{padding:20px;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg);transition:all 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var(--transition-fast)}.modal-overlay.active{opacity:1;visibility:visible}.command-palette{width:100%;max-width:560px;background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);transform:scale(.95) translateY(-10px);transition:transform var(--transition-fast);overflow:hidden}.modal-overlay.active .command-palette{transform:scale(1) translateY(0)}.palette-header{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border-color)}.palette-header svg{width:20px;height:20px;color:var(--text-tertiary)}.palette-input{flex:1;background:transparent;border:none;color:var(--text-primary);font-size:1rem}.palette-input:focus{outline:none}.palette-input::placeholder{color:var(--text-tertiary)}.palette-header kbd{font-family:var(--font-mono);font-size:.7rem;padding:4px 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6px;background:var(--bg-tertiary);border-radius:var(--radius-sm);color:var(--text-tertiary)}.toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:12px;z-index:2000}.toast{display:flex;align-items:center;gap:12px;padding:14px 20px;background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);animation:toastIn .3s ease;max-width:350px}@keyframes toastIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.toast.toast-out{animation:toastOut .3s ease forwards}@keyframes toastOut{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(20px)}}.toast-icon{width:20px;height:20px;flex-shrink:0}.toast.success .toast-icon{color:var(--accent-green)}.toast.error .toast-icon{color:var(--accent-red)}.toast.info .toast-icon{color:var(--accent-cyan)}.toast-message{font-size:.875rem;color:var(--text-primary)}@media (max-width: 768px){.sidebar{transform:translate(-100%);width:var(--sidebar-width)}.sidebar.mobile-open{transform:translate(0)}.main-content{margin-left:0}.sidebar.collapsed~.main-content{margin-left:0}.mobile-menu-btn{display:flex;align-items:center;justify-content:center}.cmd-palette-btn span,.cmd-palette-btn kbd{display:none}.tool-container{padding:16px}.split-view{grid-template-columns:1fr}.panel-header{flex-direction:column;align-items:stretch}.panel-actions{justify-content:flex-start}}.sidebar-overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:99}@media (max-width: 768px){.sidebar-overlay.active{display:block}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}::selection{background:#06b6d44d;color:var(--text-primary)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.flex{display:flex}.items-center{align-items:center}.gap-2{gap:8px}.gap-4{gap:16px}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}