@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap";:root{--excel-green:#217346;--excel-green-hover:#1b603a;--deep-green:#185c37;--deep-green-hover:#13492c;--soft-green:#f0f7f1;--soft-green-border:#d2e7d7;--pure-white:#fff;--canvas-grey:#f6f8f6;--border-grey:#e2e8e4;--border-subtle:#edf1ee;--text-charcoal:#27352d;--text-secondary:#586b60;--text-muted:#82948a;--status-warning:#d97706;--status-warning-bg:#fffbeb;--status-warning-border:#fde68a;--status-error:#dc2626;--status-error-bg:#fef2f2;--status-error-border:#fecaca;--status-success:#16a34a;--status-success-bg:#f0fdf4;--status-success-border:#bbf7d0;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000a;--shadow-xl:0 20px 25px -5px #00000014, 0 8px 10px -6px #00000008;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{width:100%;max-width:100%;overflow-x:hidden}body{font-family:var(--font-sans);background-color:var(--pure-white);color:var(--text-charcoal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;width:100%;max-width:100%;min-height:100vh;line-height:1.5;display:flex;overflow-x:hidden}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}.container{box-sizing:border-box;width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.site-header{z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-grey);background-color:#fffffff2;width:100%;max-width:100vw;transition:all .2s;position:sticky;top:0}.site-header .container{box-sizing:border-box;width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.header-inner{justify-content:space-between;align-items:center;gap:12px;width:100%;min-width:0;height:70px;display:flex}.brand-logo{cursor:pointer;white-space:nowrap;flex-shrink:0;align-items:center;gap:10px;text-decoration:none;display:flex}.brand-logo-img{object-fit:contain;width:auto;height:40px;max-height:44px;transition:transform .2s,opacity .2s;display:block}.brand-logo:hover .brand-logo-img{opacity:.95;transform:scale(1.02)}.brand-logo-img-footer{object-fit:contain;width:auto;height:38px;display:block}.brand-logo-icon{object-fit:contain;width:38px;height:38px;transition:transform .2s;display:block}.brand-logo:hover .brand-logo-icon{transform:scale(1.05)}.logo-icon-box{background-color:var(--excel-green);border-radius:var(--radius-sm);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;transition:transform .2s;display:flex;box-shadow:0 2px 4px #21734640}.brand-logo:hover .logo-icon-box{transform:scale(1.05)}.brand-text-block{flex-direction:column;display:flex}.brand-title{color:var(--deep-green);letter-spacing:-.02em;white-space:nowrap;align-items:center;gap:6px;font-size:18px;font-weight:700;display:flex}.brand-tagline{letter-spacing:.08em;color:var(--text-muted);text-transform:uppercase;white-space:nowrap;font-size:9.5px;font-weight:700}.main-nav{flex-shrink:1;align-items:center;gap:2px;display:flex}.nav-link{color:var(--text-secondary);border-radius:var(--radius-sm);white-space:nowrap;flex-shrink:0;align-items:center;gap:4px;padding:6px 10px;font-size:13.5px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-link:hover,.nav-link.active{color:var(--deep-green);background-color:var(--soft-green)}.nav-dropdown-wrapper{position:relative}.dropdown-menu{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-md);min-width:250px;box-shadow:var(--shadow-xl);z-index:120;flex-direction:column;gap:2px;padding:8px;display:none;position:absolute;top:100%;left:0}.nav-dropdown-wrapper:hover .dropdown-menu{display:flex}.dropdown-menu-wide{min-width:580px;max-width:620px;padding:14px}.dropdown-grid{grid-template-columns:1fr 1fr;gap:4px;display:grid}.dropdown-footer{border-top:1px solid var(--border-grey);text-align:center;margin-top:10px;padding-top:10px}.dropdown-all-link{color:var(--excel-green);padding:4px 8px;font-size:13px;font-weight:700;text-decoration:none;display:inline-block}.dropdown-all-link:hover{text-decoration:underline}.dropdown-item{color:var(--text-charcoal);border-radius:var(--radius-sm);align-items:center;gap:10px;padding:10px 12px;font-size:13.5px;font-weight:500;transition:all .15s;display:flex}.dropdown-item:hover{background-color:var(--soft-green);color:var(--excel-green)}.dropdown-item-desc{color:var(--text-muted);font-size:11.5px}.header-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.btn-sign-in{color:var(--text-secondary);border-radius:var(--radius-sm);white-space:nowrap;cursor:pointer;background:0 0;border:none;padding:6px 12px;font-size:13.5px;font-weight:600;transition:all .15s}.btn-sign-in:hover{color:var(--deep-green);background-color:var(--canvas-grey)}.btn-upload-primary{background-color:var(--excel-green);color:#fff;border-radius:var(--radius-sm);white-space:nowrap;cursor:pointer;border:none;align-items:center;gap:7px;padding:8px 16px;font-size:13.5px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex;box-shadow:0 2px 4px #21734633}.btn-upload-primary:hover{background-color:var(--excel-green-hover);transform:translateY(-1px);box-shadow:0 4px 8px #21734640}.mobile-menu-btn{border:1px solid var(--border-grey);border-radius:var(--radius-sm);width:38px;height:38px;color:var(--text-charcoal);cursor:pointer;background:#fff;justify-content:center;align-items:center;padding:0;font-size:20px;line-height:1;display:none}.pill-badge{border-radius:var(--radius-full);background-color:var(--soft-green);color:var(--deep-green);border:1px solid var(--soft-green-border);align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.view-section{animation:.25s ease-in-out fadeIn;display:none}.view-section.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.hero-section{background:linear-gradient(180deg, #fff 0%, #f6faf7 50%, var(--canvas-grey) 100%);border-bottom:1px solid var(--border-subtle);width:100%;max-width:100vw;padding:48px 0 44px;position:relative;overflow:hidden}.hero-container-wide{box-sizing:border-box;width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.hero-header-center{text-align:center;max-width:960px;margin:0 auto 30px;padding:0 12px}.hero-badge-wrap{margin-bottom:14px}.hero-title{color:var(--deep-green);letter-spacing:-.03em;margin-bottom:14px;font-size:40px;font-weight:800;line-height:1.22}.hero-title span{color:var(--excel-green);background:linear-gradient(135deg,#107c41 0%,#059669 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.hero-subtitle{color:var(--text-secondary);max-width:800px;margin-bottom:0;margin-left:auto;margin-right:auto;font-size:17px;line-height:1.55}.hero-grid-symmetric{box-sizing:border-box;grid-template-columns:minmax(220px,260px) 1fr minmax(220px,260px);align-items:stretch;gap:16px;width:100%;max-width:1200px;margin:0 auto 24px;display:grid}.hero-wing-card{background:var(--pure-white);border-radius:var(--radius-lg);border:1px solid #e2ece5;flex-direction:column;justify-content:space-between;padding:24px 20px;transition:all .25s cubic-bezier(.16,1,.3,1);display:flex;position:relative;box-shadow:0 4px 20px #107c410a}.hero-wing-card:hover{border-color:#b4dec7;transform:translateY(-2px);box-shadow:0 10px 28px #107c4114}.wing-card-header{border-bottom:1px solid #edf3ef;align-items:center;gap:12px;margin-bottom:14px;padding-bottom:14px;display:flex}.wing-icon-box{width:38px;height:38px;color:var(--excel-green);background:#e8f5ed;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.wing-card-title{color:var(--deep-green);margin:0 0 2px;font-size:15px;font-weight:700}.wing-card-subtitle{color:var(--text-muted);margin:0;font-size:12px}.wing-items-list{flex-direction:column;flex-grow:1;gap:11px;display:flex}.wing-item{text-align:left;border-radius:6px;align-items:flex-start;gap:10px;padding:6px 8px;transition:background .15s;display:flex}.wing-item:hover{background:#f3f8f5}.wing-item-icon{width:20px;height:20px;color:var(--excel-green);background:#e8f5ed;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;font-size:11px;font-weight:700;display:flex}.wing-item-content{flex-direction:column;line-height:1.35;display:flex}.wing-item-content strong{color:var(--deep-green);font-size:13px;font-weight:600}.wing-item-content span{color:var(--text-secondary);font-size:11.5px}.wing-card-footer{border-top:1px solid #edf3ef;justify-content:center;align-items:center;margin-top:14px;padding-top:12px;display:flex}.wing-badge-pill{color:#065f46;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:20px;align-items:center;gap:5px;padding:4px 12px;font-size:11.5px;font-weight:600;display:inline-flex}.hero-upload-card{background:var(--pure-white);border-radius:var(--radius-lg);border:1.5px solid #cfe6d9;flex-direction:column;justify-content:space-between;width:100%;margin:0;padding:24px;transition:all .2s;display:flex;position:relative;box-shadow:0 8px 30px #107c4114}.hero-upload-card:hover{border-color:#a2d4b9;box-shadow:0 12px 36px #107c411f}.upload-dropzone{border:2px dashed var(--soft-green-border);background:var(--soft-green);border-radius:var(--radius-md);cursor:pointer;text-align:center;flex-direction:column;flex-grow:1;justify-content:center;align-items:center;padding:34px 24px;transition:all .2s;display:flex;position:relative}.upload-dropzone:hover,.upload-dropzone.drag-active{border-color:var(--excel-green);background:#e8f4ec;transform:translateY(-2px)}.upload-icon-circle{background-color:var(--pure-white);width:56px;height:56px;color:var(--excel-green);box-shadow:var(--shadow-sm);border-radius:50%;justify-content:center;align-items:center;margin-bottom:14px;display:flex}.dropzone-heading{color:var(--deep-green);margin-bottom:4px;font-size:18px;font-weight:700}.dropzone-formats{color:var(--text-secondary);margin-bottom:18px;font-size:13px;font-weight:500}.btn-choose-file{background:var(--pure-white);border:1.5px solid var(--excel-green);color:var(--excel-green);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);padding:12px 36px;font-size:15px;font-weight:600;transition:all .15s}.btn-choose-file:hover{background:var(--excel-green);color:#fff}.upload-privacy-note{color:var(--text-muted);text-align:center;margin:14px 0 0;font-size:12.5px;line-height:1.45}.upload-privacy-note svg{vertical-align:-2px;color:var(--excel-green);margin-right:4px;display:inline-block}.upload-privacy-note a{color:var(--excel-green);cursor:pointer;text-decoration:underline}.hero-pill-tags{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:100%;margin-top:14px;display:grid}.pill-card{background:var(--soft-green);border:1px solid var(--soft-green-border);border-radius:var(--radius-sm);color:var(--deep-green);cursor:pointer;justify-content:center;align-items:center;gap:6px;min-width:0;padding:8px 10px;font-size:12.5px;font-weight:600;transition:all .15s;display:flex}.pill-card span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.pill-card:hover{border-color:var(--excel-green);background:#e3efe6}.pill-card svg{color:var(--excel-green)}.instant-sample-bar{color:var(--text-secondary);flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin-top:24px;font-size:13px;display:flex}.sample-chip{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-full);color:var(--deep-green);cursor:pointer;align-items:center;gap:5px;padding:6px 12px;font-size:12.5px;font-weight:600;transition:all .15s;display:inline-flex}.sample-chip:hover{border-color:var(--excel-green);background:var(--soft-green);color:var(--excel-green)}.stats-strip{background:var(--pure-white);border-bottom:1px solid var(--border-subtle);padding:24px 0}.stats-grid{text-align:center;grid-template-columns:repeat(4,1fr);gap:24px;display:grid}.stat-item-number{color:var(--deep-green);letter-spacing:-.02em;font-size:28px;font-weight:800}.stat-item-label{color:var(--text-secondary);font-size:13px;font-weight:500}.section-diff-showcase{background:var(--canvas-grey);padding:72px 0}.section-head{text-align:center;max-width:680px;margin:0 auto 40px}.section-title{color:var(--deep-green);letter-spacing:-.02em;margin-bottom:12px;font-size:32px;font-weight:800}.section-desc{color:var(--text-secondary);font-size:16px}.diff-comparison-card{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}.diff-tabs-bar{border-bottom:1px solid var(--border-grey);background:#f9faf9;justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.diff-tab-buttons{gap:8px;display:flex}.diff-tab-btn{border-radius:var(--radius-sm);background:var(--pure-white);border:1px solid var(--border-grey);color:var(--text-secondary);padding:6px 14px;font-size:13px;font-weight:600;transition:all .15s}.diff-tab-btn.active{background:var(--excel-green);color:#fff;border-color:var(--excel-green)}.excel-table-container{background:var(--pure-white);overflow-x:auto}.excel-grid{border-collapse:collapse;text-align:left;width:100%;font-size:13px}.excel-grid th{color:var(--text-charcoal);font-weight:600;font-family:var(--font-mono);-webkit-user-select:none;user-select:none;background:#f2f5f3;border:1px solid #dce3de;padding:10px 14px;font-size:12px}.excel-grid td{color:var(--text-charcoal);font-family:var(--font-mono);white-space:nowrap;border:1px solid #e8ece9;padding:9px 14px}.excel-grid tr:hover 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var(--border-grey);border-radius:var(--radius-md);padding:22px 18px;transition:all .2s;position:relative}.step-card:hover{border-color:var(--excel-green);box-shadow:var(--shadow-md);background:var(--pure-white);transform:translateY(-3px)}.step-number-badge{background:var(--excel-green);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;margin-bottom:14px;font-size:14px;font-weight:700;display:flex}.step-title{color:var(--deep-green);margin-bottom:6px;font-size:16px;font-weight:700}.step-description{color:var(--text-secondary);font-size:13px;line-height:1.45}.section-features{background:var(--canvas-grey);padding:72px 0}.features-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.feature-box{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-md);padding:24px;transition:all .2s}.feature-box:hover{box-shadow:var(--shadow-md);border-color:var(--excel-green);transform:translateY(-2px)}.feature-icon-box{background:var(--soft-green);width:44px;height:44px;color:var(--excel-green);border-radius:var(--radius-sm);justify-content:center;align-items:center;margin-bottom:16px;display:flex}.feature-heading{color:var(--deep-green);margin-bottom:8px;font-size:17px;font-weight:700}.feature-text{color:var(--text-secondary);margin-bottom:12px;font-size:14px;line-height:1.5}.feature-example{border:1px solid var(--border-subtle);border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--text-charcoal);background:#f8faf9;padding:8px 12px;font-size:12px}.section-free-tools{background:var(--pure-white);padding:64px 0}.tools-cards-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.tool-launch-card{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;justify-content:space-between;padding:28px;transition:all .2s;display:flex}.tool-launch-card:hover{border-color:var(--excel-green);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.tool-badge-row{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.tool-name{color:var(--deep-green);margin-bottom:8px;font-size:19px;font-weight:700}.tool-desc{color:var(--text-secondary);margin-bottom:20px;font-size:14px;line-height:1.5}.tool-specs-list{margin-bottom:24px;list-style:none}.tool-specs-list li{color:var(--text-charcoal);align-items:center;gap:8px;margin-bottom:8px;font-size:13px;display:flex}.tool-specs-list li svg{color:var(--excel-green);flex-shrink:0}.btn-open-tool{background:var(--soft-green);color:var(--deep-green);border-radius:var(--radius-sm);border:1px solid var(--soft-green-border);justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-size:14px;font-weight:600;transition:all .15s;display:flex}.btn-open-tool:hover{background:var(--excel-green);color:#fff;border-color:var(--excel-green)}.workspace-container{background:#fafbfa;min-height:calc(100vh - 72px);padding:32px 0 64px}.workspace-header-bar{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;margin-bottom:24px;padding:16px 24px;display:flex}.workspace-file-info{align-items:center;gap:14px;display:flex}.workspace-file-icon{background:var(--soft-green);width:40px;height:40px;color:var(--excel-green);border-radius:var(--radius-sm);justify-content:center;align-items:center;display:flex}.workspace-filename{color:var(--deep-green);font-size:16px;font-weight:700}.workspace-meta{color:var(--text-muted);font-size:12.5px}.stepper-nav{background:var(--canvas-grey);border-radius:var(--radius-full);border:1px solid var(--border-grey);align-items:center;gap:8px;padding:6px 12px;display:flex}.stepper-nav-step{color:var(--text-muted);border-radius:var(--radius-full);align-items:center;gap:6px;padding:6px 12px;font-size:13px;font-weight:600;transition:all .15s;display:flex}.stepper-nav-step.active{background:var(--pure-white);color:var(--deep-green);box-shadow:var(--shadow-sm)}.stepper-nav-step.completed{color:var(--excel-green)}.stepper-num{width:20px;height:20px;color:var(--text-secondary);background:#e2e8e4;border-radius:50%;justify-content:center;align-items:center;font-size:11px;display:flex}.stepper-nav-step.active .stepper-num{background:var(--excel-green);color:#fff}.stepper-nav-step.completed .stepper-num{background:var(--status-success);color:#fff}.workspace-panel{background:var(--pure-white);border:1px solid var(--border-grey);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.inspect-metrics-strip{background:var(--canvas-grey);border-bottom:1px solid 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