:root{--blue:#0052CC;--blue-hover:#003d99;--blue-light:#e6efff;--green:#2ecc71;--white:#fff;--gray-border:#dcdfe6;--gray-bg:#f0f3f5;--text-main:#1a2b4c;--text-muted:#5e6d82;--radius:16px;--radius-sm:12px;--shadow:0 8px 24px rgba(0,20,50,.08);--shadow-hover:0 12px 32px rgba(0,20,50,.12);--transition:all .3s cubic-bezier(.25,.8,.25,1)}.kc{max-width:600px;margin:40px auto;padding:0 16px}.calc-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px;position:relative;transition:var(--transition)}.calc-card:hover{box-shadow:var(--shadow-hover)}.calc-header{margin-bottom:24px;text-align:center}.calc-header h2{font-size:20px;font-weight:700;color:var(--text-main)}.inputs-wrapper{position:relative;display:flex;flex-direction:column;gap:8px}.input-group{display:flex;background:var(--white);border:1px solid var(--gray-border);border-radius:var(--radius-sm);transition:var(--transition);position:relative;height:72px}.input-group:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light);z-index:2}.input-group:hover{border-color:#b0c0d0}.input-group .amount-input{flex:1;border:none;background:0 0;padding:10px 20px;font-size:28px;font-weight:600;color:var(--text-main);outline:none;width:100%}.input-group .amount-input::placeholder{color:#a0aec0}.input-group .amount-input.readonly{color:var(--blue);cursor:pointer}.currency-selector{display:flex;align-items:center;gap:10px;padding:0 20px;background:var(--gray-bg);border-left:1px solid var(--gray-border);border-radius:0 var(--radius-sm) var(--radius-sm) 0;cursor:pointer;transition:var(--transition);min-width:140px}.currency-selector:hover{background:#e2e8f0}.flag-icon{width:28px;height:28px;border-radius:50%;object-fit:cover;box-shadow:0 2px 4px rgba(0,0,0,.1)}.crypto-icon{width:28px;height:28px;border-radius:50%;background:var(--text-main);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.currency-code{font-size:18px;font-weight:700;color:var(--text-main)}.chevron{color:var(--text-muted);font-size:12px;transition:transform .3s;margin-left:auto}.currency-selector.open .chevron{transform:rotate(180deg)}.swap-divider{position:absolute;top:50%;left:32px;transform:translateY(-50%);z-index:10}.swap-btn{width:40px;height:40px;background:var(--white);border:4px solid var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--blue);font-size:18px;font-weight:700;transition:transform .3s,background .3s;box-shadow:0 2px 6px rgba(0,0,0,.15)}.swap-btn:hover{background:var(--blue-light);transform:translateY(-50%) rotate(180deg)}.huge-result-wrap{margin-top:32px;padding-top:24px;border-top:1px solid var(--gray-border);text-align:center}.huge-result{font-size:36px;font-weight:800;color:var(--text-main);line-height:1.2;letter-spacing:-1px}.huge-result .small-curr{font-size:20px;color:var(--text-muted);font-weight:600;letter-spacing:0}.huge-result .equals{color:var(--gray-border);margin:0 10px;font-weight:400}.huge-result-sub{margin-top:12px;font-size:14px;color:var(--text-muted);font-weight:500}.huge-result-sub span{color:var(--text-main);font-weight:700;background:var(--gray-bg);padding:4px 10px;border-radius:6px;margin:0 4px}.live-status{margin-top:20px;display:inline-flex;align-items:center;gap:8px;background:rgba(46,204,113,.1);color:#27ae60;padding:6px 14px;border-radius:100px;font-size:12px;font-weight:600}.live-status .dot{width:8px;height:8px;background:var(--green);border-radius:50%;animation:pulse 2s infinite}.live-status .time-val{color:var(--text-main);font-weight:700;margin-left:4px;font-family:'Roboto Mono',monospace}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(46,204,113,.4)}70%{box-shadow:0 0 0 8px rgba(46,204,113,0)}100%{box-shadow:0 0 0 0 rgba(46,204,113,0)}}@keyframes popRate{0%{transform:scale(1)}50%{transform:scale(1.03);color:var(--blue)}100%{transform:scale(1)}}.pop-anim{display:inline-block;animation:popRate .3s ease-out}.dd{position:absolute;top:calc(100% + 8px);right:0;width:340px;background:var(--white);border:1px solid var(--gray-border);border-radius:var(--radius);box-shadow:var(--shadow-hover);z-index:1000;display:none;overflow:hidden}.dd.show{display:block;animation:slideDown .2s ease-out}@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dd-search{padding:12px;background:var(--gray-bg);border-bottom:1px solid var(--gray-border);position:sticky;top:0;z-index:2}.dd-search input{width:100%;padding:12px 16px;border-radius:var(--radius-sm);border:1px solid var(--gray-border);outline:none;font-size:14px}.dd-search input:focus{border-color:var(--blue)}.dd-list{max-height:300px;overflow-y:auto}.dd-group{padding:8px 16px;font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;background:var(--gray-bg)}.dd-item{display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;transition:background .2s;border-bottom:1px solid #f0f0f0}.dd-item:last-child{border-bottom:none}.dd-item:hover{background:var(--blue-light)}.dd-item.selected{background:rgba(0,82,204,.05)}.dd-item .item-code{font-weight:700;color:var(--text-main);width:40px}.dd-item .item-name{flex:1;font-size:13px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--text-main);color:#fff;padding:12px 24px;border-radius:100px;font-size:14px;font-weight:600;opacity:0;pointer-events:none;transition:var(--transition);z-index:9999;box-shadow:var(--shadow)}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.ext-block{margin-top:24px;padding:24px;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);display:none}.ext-block.visible{display:block}.ext-block.skeleton .ext-inner{visibility:hidden}.ext-block.skeleton::before{content:'';display:block;height:200px;background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:8px}@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}.day-comment{font-size:14px;font-weight:600;margin-bottom:16px;padding:8px 12px;border-radius:8px}.day-comment.up{color:#c0392b;background:rgba(192,57,43,.06)}.day-comment.down{color:#27ae60;background:rgba(39,174,96,.06)}.day-comment.flat{color:var(--text-muted);background:var(--gray-bg)}.sparkline-wrap{margin:16px 0;position:relative}.sparkline-wrap svg{width:100%;height:60px;display:block}.sparkline-labels{display:flex;justify-content:space-between;font-size:11px;color:var(--text-muted);margin-top:4px}.sparkline-tooltip{position:absolute;background:var(--text-main);color:#fff;padding:4px 10px;border-radius:6px;font-size:12px;pointer-events:none;opacity:0;transition:opacity .15s;white-space:nowrap;transform:translateX(-50%)}.stats-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}.stats-table th,.stats-table td{padding:8px 12px;text-align:center;border-bottom:1px solid var(--gray-border)}.stats-table th{font-weight:700;color:var(--text-muted);font-size:12px;text-transform:uppercase;background:var(--gray-bg)}.stats-table td:first-child{font-weight:700;color:var(--text-main);text-align:left}.nbp-compare{font-size:13px;color:var(--text-muted);text-align:center;padding:12px;background:var(--gray-bg);border-radius:8px;margin-top:16px}.nbp-compare strong{color:var(--text-main)}.faq-section{margin-top:32px}.faq-section h3{font-size:18px;font-weight:700;color:var(--text-main);margin-bottom:16px}.faq-item{border-bottom:1px solid var(--gray-border)}.faq-item:first-of-type{border-top:1px solid var(--gray-border)}.faq-item summary{padding:14px 0;font-weight:600;font-size:15px;color:var(--text-main);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}.faq-item summary::after{content:'+';font-size:20px;color:var(--text-muted);transition:transform .2s}.faq-item[open] summary::after{content:'\2212'}.faq-item p{padding:0 0 14px;font-size:14px;color:var(--text-muted);line-height:1.7;margin:0}.popular-section{margin-top:32px}.popular-section h3{font-size:18px;font-weight:700;color:var(--text-main);margin-bottom:16px}.popular-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.popular-item{padding:12px;background:var(--gray-bg);border-radius:8px;text-align:center;cursor:pointer;transition:var(--transition);font-size:13px}.popular-item:hover{background:var(--blue-light)}.popular-item .pop-amount{font-weight:700;color:var(--text-main);display:block}.popular-item .pop-result{color:var(--text-muted);font-size:12px}.popular-pairs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px}.pair-item{padding:14px;background:var(--white);border:1px solid var(--gray-border);border-radius:8px;text-align:center;cursor:pointer;transition:var(--transition)}.pair-item:hover{border-color:var(--blue);background:var(--blue-light)}.pair-item .pair-code{font-weight:700;color:var(--text-main);font-size:15px}.pair-item .pair-rate{color:var(--text-muted);font-size:13px;margin-top:4px}.hist-section{margin-top:32px}.hist-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px;position:relative;transition:var(--transition)}.hist-card:hover{box-shadow:var(--shadow-hover)}.hist-card .calc-header{margin-bottom:24px;text-align:center}.hist-card .calc-header h2{font-size:20px;font-weight:700;color:var(--text-main)}.hist-card .calc-header p{font-size:13px;color:var(--text-muted);margin:6px 0 0}.hist-date-row{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:16px;padding:16px;background:var(--gray-bg);border-radius:var(--radius-sm)}.hist-date-row span{font-size:14px;font-weight:600;color:var(--text-muted)}.hist-date-row input[type=date]{padding:10px 14px;border:1px solid var(--gray-border);border-radius:8px;font-size:15px;font-weight:600;outline:none;transition:var(--transition)}.hist-date-row input[type=date]:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light)}.hist-date-row button{padding:10px 24px;background:var(--blue);color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;transition:var(--transition)}.hist-date-row button:hover{background:var(--blue-hover)}.hist-result-wrap{display:none;margin-top:24px;padding-top:20px;border-top:1px solid var(--gray-border);text-align:center}.hist-result-wrap.visible{display:block}.hist-nbp-badge{display:inline-flex;align-items:center;gap:6px;margin-top:16px;background:var(--gray-bg);color:var(--text-muted);padding:6px 14px;border-radius:100px;font-size:12px;font-weight:600}.hist-diff{font-weight:700}.hist-diff.pos{color:#27ae60}.hist-diff.neg{color:#c0392b}.multi-section{margin-top:32px}.multi-section h3{font-size:18px;font-weight:700;color:var(--text-main);margin-bottom:16px}.multi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.multi-card{padding:16px;background:var(--white);border:1px solid var(--gray-border);border-radius:var(--radius-sm);text-align:center;cursor:pointer;transition:var(--transition)}.multi-card:hover{border-color:var(--blue);background:var(--blue-light)}.multi-card .mc-flag{margin-bottom:6px}.multi-card .mc-code{font-size:13px;font-weight:700;color:var(--text-main)}.multi-card .mc-val{font-size:18px;font-weight:800;color:var(--blue);margin-top:4px}.multi-add{padding:16px;background:var(--gray-bg);border:2px dashed var(--gray-border);border-radius:var(--radius-sm);text-align:center;cursor:pointer;transition:var(--transition);font-size:14px;font-weight:600;color:var(--text-muted);position:relative}.multi-add:hover{border-color:var(--blue);color:var(--blue)}.share-btn{background:none;border:1px solid var(--gray-border);border-radius:100px;padding:6px 16px;font-size:12px;font-weight:600;color:var(--text-muted);cursor:pointer;transition:var(--transition)}.share-btn:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-light)}@media(max-width:768px){.multi-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:480px){.multi-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.calc-card{padding:24px 16px}.input-group .amount-input{font-size:24px;padding:10px 12px}.currency-selector{padding:0 12px;min-width:110px}.huge-result{font-size:28px}.dd{width:100%;left:0}.swap-divider{left:16px}.popular-grid,.popular-pairs{grid-template-columns:repeat(2,1fr)}.hist-date-row{flex-direction:column}.hist-date-row input[type=date]{width:100%}.hist-date-row button{width:100%}}