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#e9ecef;background:#fff;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;z-index:10}.jwt-copy-btn:hover{background:#f8f9fa;border-color:#d0d7de}.jwt-copy-btn svg{color:#666}.jwt-copy-btn:hover svg{color:#333}[data-theme=dark] .jwt-copy-btn{background:#404040;border:1px solid #555}[data-theme=dark] .jwt-copy-btn:hover{background:#4a4a4a;border-color:#666}[data-theme=dark] .jwt-copy-btn svg{color:#ccc}[data-theme=dark] .jwt-copy-btn:hover svg{color:#e0e0e0}.json-input-container{position:relative;flex:1;display:flex;overflow:hidden}.line-numbers{padding:10px 5px 10px 10px;background:#f8f9fa;color:#6c757d;font-family:'Courier New',monospace;font-size:14px;line-height:1.5;text-align:right;border-right:1px solid #e9ecef;overflow-y:auto;user-select:none;min-width:40px;white-space:nowrap}[data-theme=dark] .line-numbers{background:#404040;color:#b0b0b0;border-right:1px solid #555}.line-numbers .line-number{display:block;padding:0 4px}.line-numbers .line-number.error-line{background:#f8d7da;color:#721c24}[data-theme=dark] .line-numbers .line-number.error-line{background:#5c2c33;color:#f8d7da}#jsonInput{flex:1;padding:10px;border:none;background:#fff;color:#333;font-family:'Courier New',monospace;font-size:14px;line-height:1.5;resize:none;outline:0;overflow:auto;white-space:pre;word-wrap:normal}[data-theme=dark] #jsonInput{background:#2d2d2d;color:#e0e0e0}#datetimeInput,#timestampInput{flex:1;padding:12px;background:#fff;color:#333;font-family:'Courier New',monospace;font-size:14px;line-height:1.5;resize:none;outline:0;overflow:auto;white-space:pre;word-wrap:normal;border:1px solid #e9ecef;border-radius:0 0 8px 8px}[data-theme=dark] #datetimeInput,[data-theme=dark] #timestampInput{background:#2d2d2d;color:#e0e0e0;border:1px solid #555;border-top:none}#jsonOutput{flex:1;padding:2px 2px;background:#f8f9fa;color:#333;font-family:'Courier 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solid #555}.json-status.valid{background:#d4edda;color:#155724}[data-theme=dark] .json-status.valid{background:#2d4f34;color:#d4edda}.json-status.invalid{background:#f8d7da;color:#721c24}[data-theme=dark] .json-status.invalid{background:#5c2c33;color:#f8d7da}.json-status.info{background:#d1ecf1;color:#0c5460}[data-theme=dark] .json-status.info{background:#2c4d53;color:#d1ecf1}.btn{padding:8px 16px;border:none;border-radius:4px;font-size:14px;cursor:pointer;transition:background-color .2s;color:#fff;min-width:auto;white-space:nowrap}.btn:hover{opacity:.9;transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-format{background:#007bff}.btn-compress{background:#6f42c1}.btn-validate{background:#20c997}.btn-unescape{background:#fd7e14}.btn-clear{background:#ef4444}.btn-copy{background:#17a2b8}.btn-close{background:#dc3545}.timezone-select{padding:8px 12px;border:1px solid #e9ecef;border-radius:4px;background:#fff;color:#333;font-size:12px;min-width:200px;height:36px;box-sizing:border-box}[data-theme=dark] .timezone-select{background:#404040;border:1px solid #555;color:#e0e0e0}.convert-btn{background:#007bff;color:#fff;border:none;border-radius:4px;padding:8px 20px;font-size:14px;cursor:pointer;transition:background-color .2s;white-space:nowrap;height:36px;box-sizing:border-box}.convert-btn:hover{background:#0056b3}[data-theme=dark] .convert-btn{background:#007bff}[data-theme=dark] .convert-btn:hover{background:#0056b3}.json-key{color:#92278f;font-weight:700}.json-string{color:#3ab54a;font-weight:700}.json-number{color:#25aae2;font-weight:700}.json-null{color:#f1592a;font-weight:700;font-style:italic}.json-bracket{color:#6f42c1;font-weight:700}.json-timestamp{font-weight:700!important;cursor:help;text-decoration-line:underline;text-decoration-style:dashed;text-decoration-color:#25aae2;text-decoration-thickness:1px;text-underline-offset:2px;text-decoration-skip-ink:none}.json-colon{color:#333;padding:0 4px 0 1px}[data-theme=dark] .json-timestamp{text-decoration-color:#4bb8e8}.json-comma{color:#333}.json-boolean{color:#f98280!important;font-weight:700!important;background-color:transparent;padding:0;border-radius:0}[data-theme=dark] .json-boolean{color:#f98280!important;font-weight:700!important;background-color:transparent;padding:0;border-radius:0}[data-theme=dark] .json-colon,[data-theme=dark] 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rgba(102,126,234,.3);margin-bottom:20px;flex-shrink:0;position:relative;overflow:hidden}.timestamp-current-card::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,rgba(255,255,255,.1) 50%,transparent 50%),linear-gradient(rgba(255,255,255,.1) 50%,transparent 50%);background-size:30px 30px;pointer-events:none}[data-theme=dark] .timestamp-current-card{background:linear-gradient(135deg,#2a3a7a 0,#3a2a5a 100%);box-shadow:0 8px 24px rgba(102,126,234,.4)}[data-theme=dark] .timestamp-current-card::before{background:linear-gradient(90deg,rgba(255,255,255,.08) 50%,transparent 50%),linear-gradient(rgba(255,255,255,.08) 50%,transparent 50%);background-size:30px 30px}.current-timestamp-header{display:flex;align-items:center;gap:16px;z-index:1}.timestamp-center{display:flex;flex-direction:column;align-items:flex-start;gap:4px;flex:1;position:relative;z-index:1}.current-timestamp-icon{width:100px;height:100px;background:rgba(255,255,255,.2);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;backdrop-filter:blur(10px);flex-shrink:0;position:relative;z-index:1}.current-timestamp-icon .second-hand{transform-origin:12px 12px}.current-timestamp-icon .second-hand circle{fill:rgba(217,30,8,0.7)}.current-timestamp-icon .second-hand path{stroke:rgba(217,30,8,0.7)}.current-timestamp-header .section-title{font-size:16px;font-weight:600;color:rgba(255,255,255,.9);margin:0}.timestamp-toggle-btn{width:32px;height:32px;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.3);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;transition:all .3s cubic-bezier(.4, 0, .2, 1);backdrop-filter:blur(10px);margin-left:auto}.timestamp-toggle-btn:hover{background:rgba(255,255,255,.3);transform:scale(1.05)}.timestamp-toggle-btn:active{transform:scale(.95)}.timestamp-toggle-btn svg{width:20px;height:20px;display:none}.timestamp-toggle-btn.is-running .pause-icon{display:block}.timestamp-toggle-btn.is-stopped .play-icon{display:block}.current-timestamp-value{font-size:24px;font-weight:700;font-family:'Courier New',Consolas,monospace;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.2);letter-spacing:1px;padding:0;flex-shrink:0}.weekdays-display{position:absolute;top:2px;right:12px;display:flex;gap:2px;z-index:2}.weekday{width:10px;height:20px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600;color:rgba(255,255,255,.4);border-radius:4px;transition:all .3s ease}.weekday.active{color:rgba(239,67,67,.7)}.datetime-display{position:absolute;bottom:8px;right:8px;font-size:14px;font-family:'Courier 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.3s ease;min-width:150px}@media (max-width:768px){.timezone-select{padding:4px 10px;font-size:12px;min-width:120px;height:30px}}@media (max-width:480px){.timezone-select{height:auto;padding:6px 10px}}.timezone-select:focus{outline:0;border-color:#667eea;box-shadow:0 4px 12px rgba(102,126,234,.15)}[data-theme=dark] .timezone-select{background:#404040;border-color:#555;color:#e0e0e0}[data-theme=dark] .timezone-select:focus{border-color:#667eea;background:#2d2d2d;box-shadow:0 4px 12px rgba(102,126,234,.25)}@media (max-width:1024px){.input-output-grid{grid-template-columns:1fr}}@media (max-width:768px){.timestamp-current-card{padding:20px;margin-bottom:16px;position:relative}.mode-tab{padding:8px 16px;font-size:13px}.mode-tab svg{display:none}.result-content,.timestamp-textarea{min-height:100px}}.timestamp-content-container{display:flex;flex:1;overflow:hidden;gap:16px;padding:0;min-height:0}.controls-left{flex:0}.controls-right{display:flex;gap:10px;align-items:center}@media (max-width:768px){.timestamp-content-container{flex-direction:column;gap:15px;padding:15px}.timestamp-input-section,.timestamp-output-section{min-height:0}.timestamp-current-section{min-height:auto;max-height:none}}@media (max-width:768px){.btn{padding:6px 12px;font-size:13px;min-height:auto}.btn-clear,.btn-close,.btn-compress,.btn-copy,.btn-format,.btn-unescape,.btn-validate{padding:6px 12px;font-size:13px}.button-controls,.tool-controls{padding:8px 10px;gap:6px;flex-wrap:wrap}.button-controls select,.tool-controls select{padding:4px 10px;font-size:12px;min-width:120px;height:30px}.convert-btn{padding:6px 12px;font-size:13px;height:30px}.timezone-select{padding:4px 10px;font-size:12px;min-width:120px;height:30px}.section-header{padding:12px 16px;font-size:15px}@media (max-width:480px){.btn{padding:5px 10px;font-size:12px}.section-header{padding:10px 14px;font-size:14px}.button-controls,.tool-controls{padding:6px 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