.ecu-root{--bg:#0a0a0b;--surface:#111113;--surface2:#19191d;--border:#2a2a30;--border2:#3a3a44;--text:#f0f0f2;--muted:#888898;--accent:#00e5a0;--accent-dim:#00c484;--accent-bg:rgba(0,229,160,.08);--accent-border:rgba(0,229,160,.2);--warn:#f5a623;--warn-bg:rgba(245,166,35,.08);--warn-border:rgba(245,166,35,.2);--err:#ff5c5c;--err-bg:rgba(255,92,92,.08);--err-border:rgba(255,92,92,.2);--mono:"Courier New",monospace;--sans:system-ui,-apple-system,sans-serif;--radius:10px;background:var(--bg);color:var(--text);font-family:var(--sans);min-height:100vh;line-height:1.6;position:relative}.ecu-root:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(0,229,160,.03) 1px,transparent 0),linear-gradient(90deg,rgba(0,229,160,.03) 1px,transparent 0);background-size:40px 40px;pointer-events:none;z-index:0}.ecu-nav{position:sticky;top:0;z-index:100;border-bottom:1px solid var(--border);background:rgba(10,10,11,.85);backdrop-filter:blur(12px);padding:0 1.5rem;justify-content:space-between;height:56px}.ecu-logo,.ecu-nav{display:flex;align-items:center}.ecu-logo{gap:10px;text-decoration:none}.ecu-logo-mark{width:28px;height:28px;border-radius:6px;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#000;font-weight:800;font-size:13px;letter-spacing:-.5px}.ecu-logo-text{font-weight:700;font-size:15px;color:var(--text)}.ecu-logo-text span{color:var(--accent)}.ecu-nav-link{font-size:13px;color:var(--muted);text-decoration:none;transition:color .2s}.ecu-nav-link:hover{color:var(--text)}.ecu-main{position:relative;z-index:1;max-width:860px;margin:0 auto;padding:3rem 1.5rem 4rem}.ecu-hero{margin-bottom:3rem;border-bottom:1px solid var(--border);padding-bottom:2.5rem}.ecu-hero-label{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--accent-bg);border:1px solid var(--accent-border);padding:4px 10px;border-radius:20px;margin-bottom:1rem}.ecu-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;line-height:1.15;letter-spacing:-.03em;margin-bottom:.75rem}.ecu-hero h1 span{color:var(--accent)}.ecu-hero p{color:var(--muted);font-size:15px;max-width:520px}.ecu-tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.ecu-tool-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding:1.25rem 1.5rem;border-bottom:1px solid var(--border)}.ecu-tool-icon{width:42px;height:42px;border-radius:8px;background:var(--accent-bg);border:1px solid var(--accent-border);display:flex;align-items:center;justify-content:center;flex-shrink:0}.ecu-tool-icon svg{width:20px;height:20px;stroke:var(--accent)}.ecu-tool-title{font-size:16px;font-weight:700;margin-bottom:3px}.ecu-tool-sub{font-size:12px;color:var(--muted)}.ecu-tool-badge{font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border);padding:3px 8px;border-radius:4px;white-space:nowrap;flex-shrink:0}.ecu-tool-body{padding:1.5rem}.ecu-dropzone{border:1.5px dashed var(--border2);border-radius:var(--radius);padding:2.5rem 1rem;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;position:relative}.ecu-dropzone.drag,.ecu-dropzone:hover{border-color:var(--accent);background:var(--accent-bg)}.ecu-dropzone input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}.ecu-dropzone-icon{font-size:2rem;margin-bottom:.75rem;line-height:1}.ecu-dropzone p{font-weight:600;font-size:14px;margin-bottom:4px}.ecu-dropzone small{color:var(--muted);font-size:12px}.ecu-chip-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:1.25rem}.ecu-chip{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;letter-spacing:.03em;padding:4px 10px;border-radius:20px}.ecu-chip-ok{background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border)}.ecu-chip-warn{background:var(--warn-bg);color:var(--warn);border:1px solid var(--warn-border)}.ecu-chip-neutral{background:var(--surface2);color:var(--muted);border:1px solid var(--border)}.ecu-ptable{width:100%;border-collapse:collapse;font-size:12px;font-family:var(--mono);margin-bottom:1rem}.ecu-ptable th{text-align:left;font-size:10px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--surface2)}.ecu-ptable td,.ecu-ptable th{padding:8px 10px;border-bottom:1px solid var(--border)}.ecu-ptable tr:last-child td{border-bottom:none}.ecu-ptable tr:hover td{background:var(--surface2)}.ecu-changed{color:var(--accent)}.ecu-arrow{color:var(--border2);margin:0 6px}.ecu-calc-box,.ecu-unchanged{color:var(--muted)}.ecu-calc-box{background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.75rem 1rem;margin-bottom:1.25rem;font-family:var(--mono);font-size:12px;line-height:1.8}.ecu-hl{color:var(--accent)}.ecu-btn-dl{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#000;font-family:var(--sans);font-weight:700;font-size:14px;padding:11px 22px;border:none;border-radius:8px;cursor:pointer;transition:background .2s,transform .15s}.ecu-btn-dl:hover{background:var(--accent-dim);transform:translateY(-1px)}.ecu-btn-dl:active{transform:translateY(0)}.ecu-dl-fname{font-family:var(--mono);font-size:11px;color:var(--muted);margin-top:6px}.ecu-error-box{background:var(--err-bg);border:1px solid var(--err-border);border-radius:8px;padding:1rem;color:var(--err);font-size:13px;display:flex;align-items:center;gap:8px}.ecu-algo-info{margin-top:2.5rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.ecu-algo-header{padding:.75rem 1.25rem;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;font-weight:600;letter-spacing:.04em}.ecu-algo-body,.ecu-algo-header{font-size:12px;color:var(--muted)}.ecu-algo-body{padding:1.25rem;font-family:var(--mono);line-height:2}.ecu-k{color:#c792ea}.ecu-v{color:var(--accent)}.ecu-c{color:#546e7a;font-style:italic}.ecu-n{color:#f5a623}.ecu-footer{position:relative;z-index:1;border-top:1px solid var(--border);padding:1.5rem;text-align:center;font-size:12px;color:var(--muted)}.ecu-footer a{color:var(--accent);text-decoration:none}.pdd-icon svg{stroke:var(--accent)}.pdd-mode-tabs{display:flex;gap:6px;margin-bottom:1.25rem;background:var(--surface2);padding:4px;border-radius:8px;border:1px solid var(--border)}.pdd-mode-tab{flex:1;padding:10px 12px;background:transparent;border:none;border-radius:6px;color:var(--muted);font-size:13px;font-family:var(--sans);cursor:pointer;transition:all .15s;text-align:center;line-height:1.3}.pdd-mode-tab:hover{color:var(--text);background:var(--border)}.pdd-mode-tab.active{background:var(--accent);color:#000;font-weight:600}.pdd-mode-tab small{display:block;font-size:10px;opacity:.75;font-weight:400;margin-top:2px}.pdd-mode-desc{font-size:13px;color:var(--muted);margin-bottom:1rem;padding:10px 14px;background:var(--surface2);border-radius:6px;border-left:3px solid var(--accent);line-height:1.6}.pdd-mode-desc strong{color:var(--text)}.pdd-drop-pair{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.pdd-drop-label{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.ecu-dropzone.loaded{border-color:var(--accent);background:rgba(0,229,160,.04)}.pdd-mileage-opt{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--surface2);border-radius:6px;border:1px solid var(--border);font-size:13px;color:var(--muted);margin-bottom:1rem;cursor:pointer}.pdd-mileage-opt input[type=checkbox]{accent-color:var(--accent)}.pdd-mileage-opt strong{color:var(--text)}.pdd-status{margin-top:1rem;padding:10px 14px;border-radius:6px;font-size:13px;font-family:var(--mono)}.pdd-status.ok{background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border)}.pdd-status.err{background:var(--err-bg);color:var(--err);border:1px solid var(--err-border)}.pdd-hex-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}.pdd-hex-panel{background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:12px 14px}.pdd-hex-title{font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}.pdd-hex-title,.pdd-hex-view{font-size:11px;color:var(--muted)}.pdd-hex-view{font-family:var(--mono);line-height:1.7;word-break:break-all;max-height:160px;overflow-y:auto;white-space:pre}.hex-addr{color:var(--muted);opacity:.5}.hex-hi{color:var(--accent)}.pdd-btn-row{display:flex;align-items:center;gap:12px;margin-top:1.25rem;flex-wrap:wrap}.pdd-btn-ghost{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:transparent;color:var(--muted);border:1px solid var(--border);border-radius:8px;cursor:pointer;font-size:14px;font-family:var(--sans);transition:all .15s}.pdd-btn-ghost:hover{color:var(--text);border-color:var(--muted)}.ecu-btn-dl:disabled{opacity:.4;cursor:not-allowed}.ecu-btn-dl:disabled:hover{background:var(--accent);transform:none}@media(max-width:600px){.ecu-main{padding:2rem 1rem 3rem}.ecu-ptable td:nth-child(2),.ecu-ptable th:nth-child(2){display:none}.pdd-drop-pair,.pdd-hex-grid{grid-template-columns:1fr}.pdd-mode-tab small{display:none}}