@import"https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&display=swap";@import"https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap";@import"https://fonts.googleapis.com/css2?family=Syne:wght@700;800&display=swap";:root{--bg: #0c1118;--bg2: #0a0e14;--surface: #121925;--surface2: #161f2e;--border: #233044;--border2: #2e3e57;--accent: #14d8ac;--accent-dim: rgba(20,216,172,.12);--accent2: #2b9bff;--red: #ff5470;--green: #14d8ac;--yellow: #f5c842;--muted: #5a6b80;--text: #d6e2f0;--text-dim: #93a4ba;--label: #6f8197;--sans: "Geist", system-ui, -apple-system, sans-serif;--mono: "JetBrains Mono", ui-monospace, monospace;--display: "Syne", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased}.app{min-height:100vh;background:radial-gradient(ellipse 90% 50% at 50% -10%,rgba(20,216,172,.06) 0%,transparent 55%),var(--bg);padding:28px 18px 56px}.header{text-align:center;margin-bottom:30px}.header h1{font-family:var(--display);font-size:30px;font-weight:800;letter-spacing:-.5px;color:#fff;text-transform:uppercase}.header h1 span{color:var(--accent)}.header p{font-size:10px;letter-spacing:3px;color:var(--muted);text-transform:uppercase;margin-top:5px;font-weight:500}.layout{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:18px}@media (max-width: 760px){.layout{grid-template-columns:1fr;gap:14px}}.panel{background:linear-gradient(180deg,var(--surface2) 0%,var(--surface) 100%);border:1px solid var(--border);border-radius:10px;overflow:hidden;box-shadow:0 1px #ffffff08 inset,0 8px 24px #00000059}.panel-title{font-family:var(--sans);font-size:11px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--accent);padding:12px 16px;border-bottom:1px solid var(--border);background:rgba(20,216,172,.05)}.panel-body{padding:16px}.output-panel{grid-column:1 / -1}.side-toggle{display:flex;margin-bottom:16px;border:1px solid var(--border2);border-radius:8px;overflow:hidden;padding:3px;gap:3px;background:var(--bg2)}.side-btn{flex:1;padding:9px;font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:1px;border:none;cursor:pointer;transition:all .15s;text-transform:uppercase;border-radius:6px;background:transparent;color:var(--muted)}.side-btn.long.active{background:var(--green);color:#04231c}.side-btn.short.active{background:var(--red);color:#2a0710}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field{display:flex;flex-direction:column;gap:5px;margin-bottom:10px}.field label{font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:var(--label);font-weight:500}.field input,.field select{background:var(--bg2);border:1px solid var(--border);color:var(--text);font-family:var(--mono);font-size:13px;padding:9px 10px;border-radius:7px;outline:none;transition:border .15s,box-shadow .15s;width:100%}.field input:focus,.field select:focus{border-color:var(--accent2);box-shadow:0 0 0 3px #2b9bff1f}.field input::placeholder{color:var(--muted);font-family:var(--sans);font-size:12px}.field input:read-only{opacity:.55;cursor:not-allowed}.field select{font-family:var(--sans)}.btn{font-family:var(--sans);font-size:11px;font-weight:500;letter-spacing:.5px;cursor:pointer;border:none;border-radius:7px;padding:8px 12px;transition:all .15s}.btn-calc{width:100%;padding:13px;background:var(--accent);color:#04231c;font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase;margin-top:12px;border-radius:8px;box-shadow:0 4px 14px #14d8ac40}.btn-calc:hover{background:#1ce9bb}.btn-reset{width:100%;padding:9px;background:transparent;color:var(--muted);border:1px solid var(--border);font-size:10px;letter-spacing:1px;margin-top:8px;text-transform:uppercase}.btn-reset:hover{color:var(--text);border-color:var(--border2)}.error-box{margin-top:10px;padding:9px 11px;background:rgba(255,84,112,.1);border:1px solid rgba(255,84,112,.3);border-radius:7px;color:var(--red);font-size:12px;letter-spacing:.2px}.results-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}@media (max-width: 760px){.results-grid{grid-template-columns:repeat(2,1fr)}}.result-cell{background:var(--bg2);border:1px solid var(--border);border-radius:9px;padding:13px 14px;display:flex;flex-direction:column;gap:4px}.rc-label{font-size:9px;letter-spacing:.8px;text-transform:uppercase;color:var(--label);font-weight:500}.rc-val{font-size:19px;font-weight:500;color:var(--text);font-family:var(--mono)}.rc-val.pos{color:var(--green)}.rc-val.neg{color:var(--red)}.rc-sub{font-size:10px;color:var(--muted)}.section-divider{margin:14px 0 12px;font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--text-dim);font-weight:500;display:flex;align-items:center;gap:10px}.section-divider:after{content:"";flex:1;height:1px;background:var(--border)}.empty-state{padding:44px;text-align:center;color:var(--muted);font-size:13px;letter-spacing:.3px}.panel-title.collapsible{cursor:pointer;display:flex;align-items:center;justify-content:space-between;-webkit-user-select:none;user-select:none}.panel-title.collapsible:hover{background:rgba(20,216,172,.08)}.panel-title .chev{font-size:10px;color:var(--muted);transition:transform .2s}.panel-title .chev.open{transform:rotate(90deg)}