.transaction-item{background-color:var(--overlay-background);border-radius:var(--border-radius-lg);padding:var(--spacing-md);border-left:3px solid var(--border-accent);margin-bottom:var(--spacing-md);box-shadow:var(--shadow-sm)}.transaction-header{display:flex;justify-content:center;margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.tx-type{background-color:var(--primary-color);color:var(--background-color);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-md);font-size:var(--font-size-sm);font-weight:700;text-transform:uppercase;letter-spacing:1px}.tx-type.coinbase{background-color:gold;color:#000}.transaction-flow-container{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;background-color:#0003;border-radius:8px;padding:25px;margin-bottom:20px;align-items:center;position:relative;min-height:200px}.section-title{font-weight:700;color:var(--primary-color);margin-bottom:15px;text-align:center;font-size:1rem;text-transform:uppercase;letter-spacing:1px}.tx-inputs-section,.tx-outputs-section{display:flex;flex-direction:column;gap:15px;align-items:center;width:100%}.tx-total-section{display:flex;flex-direction:column;align-items:center;justify-content:center;background-color:#0000004d;padding:15px;border-radius:50%;width:100px;height:100px;position:relative;box-shadow:0 0 15px #f7931a4d;border:2px solid var(--primary-color);z-index:10}.tx-total-value{color:var(--primary-color);font-weight:700;font-size:1rem;text-align:center}.tx-input,.tx-output{display:flex;flex-direction:column;align-items:center;background-color:#0000004d;padding:12px;border-radius:6px;min-width:120px;position:relative;transition:all var(--transition-speed) var(--transition-timing);border:1px solid rgba(255,255,255,.1)}.tx-input:hover,.tx-output:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}.node-id{font-weight:700;margin-bottom:5px;font-size:.9rem}.node-value{font-size:.8rem;color:var(--text-secondary);background-color:#0003;padding:3px 8px;border-radius:12px}.coinbase-input{border:1px solid #ffd700;background-color:#ffd7001a}.coinbase-input .node-id{color:gold}.blockchain-container{display:flex;flex-direction:column;gap:0;width:100%}.blockchain-row{display:flex;gap:var(--spacing-xl);align-items:center;position:relative;flex-wrap:wrap;width:100%;background-color:var(--panel-background);border-radius:var(--border-radius-md)}.blockchain-row:not(:last-child):after{content:""}.block-item{background-color:var(--overlay-background);border:1px solid var(--primary-color);border-radius:4px;padding:10px;width:100px;height:100px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease-in-out;position:relative;margin-bottom:10px}.block-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.block-item:not(.last-in-row):after{content:"→";position:absolute;right:-25px;top:50%;transform:translateY(-50%);color:var(--primary-color);font-size:1.5rem;font-weight:700;z-index:5}.block-item.selected{border-color:var(--accent-color);box-shadow:0 0 10px var(--accent-color)}.forked-block{border-color:#444;border-width:2px;transition:border-color .3s ease-in-out,border-width .3s ease-in-out}.fork-icon{position:absolute;top:5px;right:5px;color:#666;font-size:16px;opacity:0;animation:fadeIn .5s ease-in-out forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}.block-item{transition:all .3s ease-in-out}.block-height{font-weight:700;color:var(--primary-color);margin-bottom:6px;font-size:var(--font-size-lg)}.block-hash{font-family:monospace;font-size:.8rem;background-color:#f7931a33;padding:2px 6px;border-radius:3px;margin-bottom:6px;text-align:center}.block-validation{margin-bottom:6px}.valid-block{color:#4caf50}.invalid-block{color:#f44336}.genesis-text{color:var(--accent-color);font-size:.8rem}.block-tx-count{font-size:.8rem;color:var(--text-color)}.block-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000}.block-modal{background-color:var(--background-color);border:1px solid var(--primary-color);border-radius:var(--border-radius-lg);padding:20px;max-width:800px;width:90%;max-height:90vh;overflow-y:auto}.block-modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.block-modal-header h3{margin:0;color:var(--primary-color)}.block-modal-content{display:flex;flex-direction:column;gap:20px}.block-info{display:grid;gap:10px}.info-row{display:flex;gap:10px;align-items:center}.info-label{color:var(--primary-color);font-weight:700;min-width:120px}.info-value{font-family:monospace}.hash-value{word-break:break-all;background-color:#f7931a1a;padding:2px 6px;border-radius:3px}.transactions-container{border-top:1px solid var(--border-color);padding-top:20px}.transactions-container h3{margin-top:0;color:var(--primary-color)}.genesis-hash{color:var(--accent-color)}.valid-hash{color:#4caf50}.invalid-hash{color:#f44336}.utxo-view{display:flex;flex-direction:column;width:100%;max-height:70vh}.utxo-header-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.utxo-title-container{display:flex;flex-direction:column;gap:var(--spacing-xs)}.utxo-title{margin:0;color:var(--primary-color);font-size:var(--font-size-lg)}.utxo-stats{display:flex;gap:var(--spacing-md);align-items:center}.utxo-count,.node-total-btc{font-size:var(--font-size-sm);color:var(--text-secondary);display:flex;align-items:center;gap:var(--spacing-xs)}.utxo-stat-value{font-weight:700;color:var(--text-color)}.btc-value{font-weight:700;color:var(--primary-color)}.copy-all-button{display:flex;align-items:center;gap:6px;background-color:var(--overlay-background);border:1px solid var(--border-color);color:var(--text-color);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-md);cursor:pointer;transition:all .2s;font-size:var(--font-size-sm)}.copy-all-button:hover{background-color:var(--primary-color);color:var(--background-color);border-color:var(--primary-color)}.copied-text{display:flex;align-items:center;gap:6px;color:var(--success-color)}.utxo-filters{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);margin-bottom:var(--spacing-md)}.utxo-filter{position:relative;flex:1;min-width:200px}.utxo-filter-full{flex-basis:100%}.filter-row{display:flex;align-items:center;gap:var(--spacing-sm)}.utxo-filter-label{display:block;margin-bottom:var(--spacing-xs);font-weight:700;color:var(--primary-color);font-size:var(--font-size-sm)}.utxo-filter-input,.utxo-filter-select{width:100%;padding:var(--spacing-sm);border-radius:var(--border-radius-md);border:1px solid var(--border-color);background-color:var(--overlay-background);color:var(--text-color);font-size:var(--font-size-sm)}.utxo-filter-input:focus,.utxo-filter-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #f7931a33}.react-select-container{width:100%;font-size:var(--font-size-sm)}.react-select__control{background-color:var(--overlay-background)!important;border:1px solid var(--border-color)!important;border-radius:var(--border-radius-md)!important;min-height:38px!important;box-shadow:none!important}.react-select__control--is-focused{border-color:var(--primary-color)!important;box-shadow:0 0 0 2px #f7931a33!important}.react-select__menu{background-color:var(--background-color)!important;border:1px solid var(--border-color)!important;border-radius:var(--border-radius-md)!important;z-index:var(--z-modal)!important}.react-select__option{background-color:transparent!important;color:var(--text-color)!important;cursor:pointer!important}.react-select__option--is-focused{background-color:#f7931a1a!important}.react-select__option--is-selected{background-color:var(--primary-color)!important;color:var(--background-color)!important}.react-select__multi-value{background-color:#f7931a1a!important;border-radius:var(--border-radius-sm)!important}.react-select__multi-value__label{color:var(--primary-color)!important;font-size:var(--font-size-sm)!important}.react-select__multi-value__remove{color:var(--primary-color)!important;cursor:pointer!important}.react-select__multi-value__remove:hover{background-color:var(--primary-color)!important;color:var(--background-color)!important}.react-select__placeholder{color:var(--text-secondary)!important}.react-select__input-container{color:var(--text-color)!important}.utxo-filter-clear{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:1.2rem;line-height:1}.utxo-filter-clear:hover{color:var(--text-color)}.utxo-filter-reset{background-color:var(--overlay-background);border:1px solid var(--border-color);color:var(--text-color);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-md);cursor:pointer;transition:all .2s;font-size:var(--font-size-sm);height:38px;display:flex;align-items:center;justify-content:center;white-space:nowrap;flex-shrink:0}.utxo-filter-reset:hover{background-color:var(--primary-color);color:var(--background-color);border-color:var(--primary-color)}.utxo-header{display:grid;grid-template-columns:2fr 1fr 1fr 2fr 60px;gap:var(--spacing-sm);padding:var(--spacing-sm);background-color:var(--overlay-background);border-radius:var(--border-radius-md) var(--border-radius-md) 0 0;border-bottom:1px solid var(--border-color);font-weight:700;color:var(--primary-color);font-size:var(--font-size-sm)}.utxo-actions-header{text-align:center}.utxo-list{display:flex;flex-direction:column;overflow-y:auto;max-height:50vh;border:1px solid var(--border-color);border-top:none;border-radius:0 0 var(--border-radius-md) var(--border-radius-md)}.utxo-item{display:grid;grid-template-columns:2fr 1fr 1fr 2fr 60px;gap:var(--spacing-sm);padding:var(--spacing-sm);border-bottom:1px solid var(--border-color);transition:background-color .2s}.utxo-actions{display:flex;justify-content:center;align-items:center}.copy-button{display:flex;align-items:center;justify-content:center;background-color:transparent;border:1px solid var(--border-color);color:var(--text-secondary);width:30px;height:30px;border-radius:50%;cursor:pointer;transition:all .2s;padding:0}.copy-button:hover{background-color:var(--primary-color);color:var(--background-color);border-color:var(--primary-color)}.copy-button svg{width:14px;height:14px}.utxo-item:last-child{border-bottom:none}.utxo-item:hover{background-color:var(--overlay-background)}.utxo-id,.utxo-address{font-family:monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.utxo-id{color:var(--primary-color)}.utxo-value{font-weight:700}.utxo-empty{padding:var(--spacing-lg);text-align:center;color:var(--text-secondary);font-style:italic}.utxo-pagination{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm);margin-top:var(--spacing-sm)}.pagination-button{background-color:var(--overlay-background);border:1px solid var(--border-color);color:var(--text-color);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-md);cursor:pointer;transition:all .2s}.pagination-button:hover:not(:disabled){background-color:var(--primary-color);color:var(--background-color)}.pagination-button:disabled{opacity:.5;cursor:not-allowed}.pagination-info{font-size:var(--font-size-sm);color:var(--text-secondary)}:root{--utxo-button-width: 60px;--transaction-button-width: 40px;--mining-status-width: 80px;--balance-width: 70px}.node-toolbar{display:flex;align-items:center;flex-direction:row-reverse;background-color:var(--overlay-background);border-radius:var(--border-radius-md);padding:var(--spacing-xs) var(--spacing-sm);box-shadow:var(--shadow-sm);margin-left:var(--spacing-md);overflow:visible;position:relative;z-index:100}.toolbar-item{display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);font-size:var(--font-size-sm);white-space:nowrap;position:relative;min-height:32px}.utxo-container{width:var(--utxo-button-width)}.transaction-button-container{width:var(--transaction-button-width)}.divider{display:flex;align-items:center;justify-content:center;padding:0 var(--spacing-xs)}.toolbar-button{display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-xs);border-radius:var(--border-radius-sm);font-size:var(--font-size-sm);cursor:pointer;transition:all .2s ease;white-space:nowrap;border:none;background:none;color:var(--text-color)}.node-status{font-weight:700;border-radius:var(--border-radius-sm);width:var(--mining-status-width)}.node-status.mining{color:var(--success-color);animation:pulse 1.5s infinite}.node-status.mining svg{stroke:var(--success-color);animation:pulse 1.5s infinite}.node-status.idle{color:var(--text-secondary)}.node-status.idle svg{stroke:var(--text-secondary)}.utxo-button{color:var(--primary-color);font-weight:700}.utxo-button svg{stroke:var(--primary-color)}.utxo-button:hover{background-color:var(--primary-color-transparent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.transaction-button{color:var(--orange-color, #ff8c00);font-weight:700}.transaction-button svg{color:var(--orange-color, #ff8c00)}.transaction-button:hover{background-color:#ff8c001a;transform:translateY(-1px);box-shadow:var(--shadow-sm)}.node-balance{position:relative;padding:0 var(--spacing-md)}.balance-container{display:flex;flex-direction:column;align-items:center}.balance-label{color:#aaaaaab3;font-size:.65rem;text-transform:uppercase;letter-spacing:.5px;margin-bottom:1px;font-weight:300}.balance-value-container{display:flex;align-items:center;gap:var(--spacing-xs);justify-content:center;width:var(--balance-width)}.balance-value{font-weight:500;color:var(--primary-color);font-size:var(--font-size-sm);opacity:.9}.tooltip-icon{cursor:help;color:var(--text-secondary);display:flex;align-items:center;position:relative;margin-left:var(--spacing-xs);z-index:101}.standalone-tooltip{background-color:var(--background-color);border:1px solid var(--border-color);border-radius:var(--border-radius-md);padding:var(--spacing-sm);width:200px;box-shadow:0 4px 12px #0000004d;font-size:var(--font-size-xs);color:var(--text-color);text-align:left;line-height:1.4;word-wrap:break-word;white-space:normal;pointer-events:none}@keyframes pulse{0%{opacity:.7}50%{opacity:1}to{opacity:.7}}.node-panel{background-color:var(--panel-background);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);width:100%;height:100%;display:flex;flex-direction:column}.node-header{margin-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color);padding-bottom:var(--spacing-sm)}.node-info{display:flex;align-items:center;justify-content:space-between;width:100%}.node-id-container{display:flex;align-items:center}.node-header h2{color:var(--primary-color);margin:0;font-size:var(--font-size-xl);margin-right:var(--spacing-sm)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:var(--z-modal)}.modal-container{background-color:var(--background-color);border:1px solid var(--primary-color);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);width:90%;max-width:800px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.modal-header h3{margin:0;color:var(--primary-color);font-size:var(--font-size-lg)}.close-button{background:none;border:none;color:var(--text-color);font-size:24px;cursor:pointer;padding:0;line-height:1}.close-button:hover{color:var(--primary-color)}.modal-content{display:flex;flex-direction:column;gap:var(--spacing-md)}:root{--primary-color: #f7931a;--primary-color-transparent: rgba(247, 147, 26, .15);--secondary-color: #2c2c2c;--accent-color: #ffd700;--text-color: #ffffff;--text-secondary: #aaaaaa;--success-color: #4caf50;--error-color: #f44336;--warning-color: #ff9800;--background-color: #1a1a1a;--panel-background: rgba(30, 30, 30, .95);--overlay-background: rgba(0, 0, 0, .7);--hover-background: rgba(247, 147, 26, .2);--border-color: rgba(255, 255, 255, .1);--border-accent: var(--primary-color);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px rgba(0, 0, 0, .2);--shadow-lg: 0 5px 15px rgba(0, 0, 0, .3);--shadow-hover: 0 3px 8px rgba(247, 147, 26, .3);--font-family-base: system-ui, -apple-system, sans-serif;--font-family-mono: monospace;--font-size-xs: .7rem;--font-size-sm: .8rem;--font-size-base: 1rem;--font-size-lg: 1.2rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 20px;--spacing-xl: 25px;--border-radius-sm: 3px;--border-radius-md: 4px;--border-radius-lg: 8px;--max-width-container: 2800px;--transition-speed: .2s;--transition-timing: ease;--z-modal: 1000;--z-tooltip: 100;--z-header: 50}.app-container{width:100%;max-width:var(--max-width-container);margin:0 auto;padding:var(--spacing-lg);min-height:100vh;display:flex;flex-direction:column;background-color:var(--background-color);color:var(--text-color);font-family:var(--font-family-base)}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:2px solid var(--border-accent);z-index:var(--z-header)}.app-header h1{color:var(--primary-color);margin:0;font-size:var(--font-size-2xl)}.mining-control{background-color:var(--primary-color);color:var(--background-color);border:none;padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-base);border-radius:var(--border-radius-md);font-weight:700;transition:all var(--transition-speed) var(--transition-timing);box-shadow:var(--shadow-sm)}.mining-control:hover{background-color:var(--primary-color);filter:brightness(90%);box-shadow:var(--shadow-hover)}.mining-control.mining{background-color:var(--error-color)}.nodes-container{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-xl);width:100%;flex:1}.app-footer{margin-top:var(--spacing-lg);text-align:center;padding:var(--spacing-md) 0;border-top:1px solid var(--border-color);color:var(--text-secondary)}@media (max-width: 768px){.nodes-container{grid-template-columns:1fr}.app-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-md)}}:root{--primary-color: #f7931a;--secondary-color: #4d4d4d;--background-color: #1a1a1a;--text-color: #ffffff;--panel-background: #2d2d2d;--success-color: #4caf50;--error-color: #f44336}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-color);color:var(--text-color)}*{box-sizing:border-box}button{cursor:pointer}