.landing-page{width:100%;overflow-x:hidden}.hero{min-height:calc(100vh - 5rem);display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;padding:4rem 2rem;max-width:1280px;margin:0 auto;background:linear-gradient(135deg,#5046e508,#10b98108)}.hero-content{animation:fadeInUp .8s ease-out}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:1.5rem;color:var(--color-text);letter-spacing:-.02em}.hero-gradient{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-success) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;line-height:1.7;color:var(--color-text-secondary);margin-bottom:2.5rem;max-width:540px}.hero-cta{display:flex;gap:1rem;margin-bottom:3rem}.btn-primary-large,.btn-secondary-large{padding:1rem 2rem;font-size:1.125rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .2s;border:none}.btn-primary-large{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;box-shadow:0 4px 14px #5046e566}.btn-primary-large:hover{transform:translateY(-2px);box-shadow:0 6px 20px #5046e580}.btn-secondary-large{background:#fff;color:var(--color-primary);border:2px solid var(--color-border)}.btn-secondary-large:hover{border-color:var(--color-primary);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.hero-stats{display:flex;gap:3rem;padding-top:2rem;border-top:2px solid var(--color-border)}.stat-item{text-align:left}.stat-number{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 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#5046e54d}.step-label{font-size:.875rem;font-weight:600;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.animation-arrow{opacity:.3;transition:opacity .4s}.animation-arrow.active{opacity:1}.animation-arrow svg{width:32px;height:32px;color:var(--color-primary)}section{padding:6rem 2rem}.section-header{text-align:center;margin-bottom:4rem}.section-header h2{font-size:2.75rem;font-weight:800;color:var(--color-text);margin-bottom:1rem}.section-header p{font-size:1.25rem;color:var(--color-text-secondary)}.features{background:#fff}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;max-width:1280px;margin:0 auto}.feature-card{padding:2rem;border-radius:12px;border:2px solid var(--color-border);transition:all .3s;background:var(--color-surface)}.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px #0000001a;border-color:var(--color-primary-light)}.feature-icon{width:56px;height:56px;border-radius:10px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 100%);display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem}.feature-icon svg{width:28px;height:28px;color:#fff;stroke-width:2.5}.feature-card h3{font-size:1.25rem;font-weight:700;color:var(--color-text);margin-bottom:1rem}.feature-card p{font-size:1rem;line-height:1.6;color:var(--color-text-secondary)}.how-it-works{background:var(--color-bg)}.steps-container{display:flex;align-items:center;justify-content:center;max-width:1100px;margin:0 auto;gap:1rem}.step-item{flex:1;display:flex;flex-direction:column;align-items:center;text-align:center}.step-number{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;font-size:1.75rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;box-shadow:0 4px 14px #5046e566}.step-content h3{font-size:1.25rem;font-weight:700;color:var(--color-text);margin-bottom:.75rem}.step-content p{font-size:1rem;color:var(--color-text-secondary);line-height:1.6}.step-connector{width:120px;height:2px;background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-primary-light) 100%);margin-bottom:3rem}.pricing{background:#fff}.pricing-card{max-width:500px;margin:0 auto;padding:3rem;background:#fff;border-radius:16px;border:2px solid var(--color-primary);box-shadow:0 8px 24px #5046e51f}.pricing-header{text-align:center;margin-bottom:2.5rem}.pricing-header h3{font-size:1.5rem;font-weight:700;color:var(--color-text);margin-bottom:1.5rem}.pricing-amount{display:flex;align-items:baseline;justify-content:center;gap:.5rem}.currency{font-size:2rem;font-weight:700;color:var(--color-text-secondary)}.price{font-size:4.5rem;font-weight:900;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-success) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}.unit{font-size:1.125rem;color:var(--color-text-secondary);font-weight:600}.pricing-average{font-size:.875rem;font-weight:400;color:#9ca3af;margin-left:.5rem}.pricing-features{display:flex;flex-direction:column;gap:1rem;margin-bottom:2.5rem}.pricing-feature{display:flex;align-items:center;gap:1rem}.pricing-feature svg{width:24px;height:24px;color:var(--color-success);flex-shrink:0;stroke-width:3}.pricing-feature span{font-size:1rem;color:var(--color-text)}.pricing-cta{width:100%;padding:1.125rem;font-size:1.125rem;font-weight:700;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .2s;box-shadow:0 4px 14px #5046e566;margin-bottom:1rem}.pricing-cta:hover{transform:translateY(-2px);box-shadow:0 6px 20px #5046e580}.pricing-note{text-align:center;font-size:.875rem;color:var(--color-text-muted)}.cta-section{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;text-align:center;padding:6rem 2rem}.cta-content h2{font-size:3rem;font-weight:800;margin-bottom:1rem}.cta-content p{font-size:1.25rem;margin-bottom:2.5rem;opacity:.9}.cta-content .btn-primary-large{background:#fff;color:var(--color-primary)}.cta-content .btn-primary-large:hover{background:var(--color-bg)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 1024px){.hero{grid-template-columns:1fr;gap:3rem;padding:3rem 1.5rem}.hero-title{font-size:2.75rem}.animation-container{flex-direction:column;gap:1.5rem}.animation-arrow{transform:rotate(90deg)}.steps-container{flex-direction:column}.step-connector{width:2px;height:60px;margin:0}}@media (max-width: 768px){.hero-title{font-size:2.25rem}.hero-subtitle{font-size:1.125rem}.hero-cta{flex-direction:column}.btn-primary-large,.btn-secondary-large{width:100%}.hero-stats{gap:1.5rem}.section-header h2{font-size:2rem}.features-grid{grid-template-columns:1fr}.cta-content h2{font-size:2rem}}.app{min-height:100vh;display:flex;flex-direction:column;background-color:var(--color-bg);color:var(--color-text)}.app-header{background:linear-gradient(135deg,#0f172a,#1e293b);color:var(--color-header-text);padding:1rem 0;box-shadow:0 1px 3px #0000001a;border-bottom:1px solid rgba(255,255,255,.1)}.app-header .container{max-width:1280px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;cursor:pointer;color:var(--color-header-text);letter-spacing:-.5px}nav{display:flex;gap:2rem;align-items:center}nav a{color:#f8fafccc;text-decoration:none;cursor:pointer;transition:color .2s;font-weight:500}nav a:hover{color:var(--color-header-text)}.user-menu{display:flex;gap:1.5rem;align-items:center}.credits{background:linear-gradient(135deg,var(--color-success) 0%,var(--color-success-dark) 100%);padding:.5rem 1rem;border-radius:20px;font-weight:600;color:#fff;box-shadow:0 2px 8px #10b9814d}.main-content{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:3rem 2rem}.login-form,.register-form,.create-project{max-width:460px;margin:4rem auto;padding:3rem;background:var(--color-surface);border-radius:12px;box-shadow:0 4px 6px #00000012,0 1px 3px #0000000f;border:1px solid var(--color-border)}.login-form h2,.register-form h2,.create-project h2{margin-bottom:2rem;color:var(--color-text);font-size:1.875rem;font-weight:700;text-align:center}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--color-text);font-size:.875rem}.form-group input,.form-group textarea{width:100%;padding:.75rem 1rem;border:2px solid var(--color-border);border-radius:8px;font-size:1rem;transition:border-color .2s,box-shadow .2s;background:var(--color-surface);color:var(--color-text)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #5046e51a}.form-group textarea{resize:vertical;min-height:100px}button{padding:.75rem 1.5rem;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 2px 8px #5046e54d}button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #5046e566}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}button.primary{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);box-shadow:0 2px 8px #5046e54d}.error{color:var(--color-danger);padding:1rem;background-color:#fef2f2;border-radius:8px;margin:1rem 0;border-left:4px solid var(--color-danger)}.loading{text-align:center;padding:3rem;font-size:1.125rem;color:var(--color-text-secondary)}.dashboard h1{margin-bottom:2rem;color:var(--color-text);font-size:2.25rem;font-weight:700}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:3rem}.stat-card{background:var(--color-surface);padding:2rem;border-radius:12px;box-shadow:0 1px 3px #00000014;border:1px solid var(--color-border);transition:transform .2s,box-shadow .2s}.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.stat-card h3{margin-bottom:1rem;color:var(--color-text-secondary);font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:2.5rem;font-weight:700;margin:1rem 0;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-card button{width:100%;margin-top:1rem}.project-list .header,.project-detail .header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.project-detail .header h1{font-size:2rem;font-weight:700;color:var(--color-text)}.project-detail .header p{color:var(--color-text-secondary);margin-top:.5rem}.project-detail 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var(--color-border)}.project-stats .stat label{display:block;color:var(--color-text-secondary);font-size:.875rem;margin-bottom:.5rem;font-weight:600;text-transform:uppercase}.project-stats .stat span{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.sheets-section{background:var(--color-surface);padding:2rem;border-radius:12px;box-shadow:0 1px 3px #00000014;border:1px solid var(--color-border)}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.section-header h2{font-size:1.5rem;font-weight:700;color:var(--color-text)}.selection-actions{display:flex;gap:1rem;align-items:center}.selection-actions span{font-weight:600;color:var(--color-text-secondary);padding:.5rem 1rem;background:var(--color-bg);border-radius:8px}.process-button{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);box-shadow:0 2px 8px 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h4{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:1rem;text-transform:uppercase;font-weight:700;letter-spacing:1px}.image-container,.result-container{background:var(--color-bg);border:2px solid var(--color-border);border-radius:12px;overflow:hidden;min-height:300px}.image-container{display:flex;align-items:center;justify-content:center}.image-container img{width:100%;height:auto;display:block}.no-image,.no-data{color:var(--color-text-muted);padding:2rem;text-align:center;font-weight:500}.result-container{overflow:auto;max-height:600px;padding:1rem}.csv-table-container{overflow-x:auto}.csv-table{width:100%;border-collapse:collapse;font-size:.875rem}.csv-table td{border:1px solid var(--color-border);padding:.625rem .875rem;background:var(--color-surface);color:var(--color-text)}.csv-table tr:nth-child(2n) td{background:var(--color-bg)}.metadata{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--color-border);color:var(--color-text-muted);font-size:.875rem}.table-actions{display:flex;gap:1rem;margin-top:1.5rem;padding-top:1.5rem;border-top:2px solid var(--color-border)}.accept-button{flex:1;background:linear-gradient(135deg,var(--color-success) 0%,var(--color-success-dark) 100%);padding:1rem;font-size:1rem;font-weight:700;box-shadow:0 2px 8px #10b9814d}.reject-button{flex:1;background:linear-gradient(135deg,var(--color-danger) 0%,var(--color-danger-dark) 100%);padding:1rem;font-size:1rem;font-weight:700;box-shadow:0 2px 8px #ef44444d}.upload-area{border:3px dashed var(--color-border);border-radius:12px;padding:3rem;text-align:center;margin:2rem 0;background:var(--color-surface);transition:all .2s}.upload-area:hover{border-color:var(--color-primary);background:#5046e505}.upload-label{cursor:pointer;color:var(--color-text)}.upload-icon{font-size:3rem;margin-bottom:1rem;color:var(--color-primary)}#file-input{display:none}.selected-files{background:var(--color-surface);padding:1.5rem;border-radius:12px;margin:1rem 0;border:1px solid var(--color-border)}.selected-files ul{list-style:none}.selected-files li{display:flex;justify-content:space-between;align-items:center;padding:.875rem;border-bottom:1px solid var(--color-border);color:var(--color-text)}.selected-files li:last-child{border-bottom:none}.empty-state{text-align:center;padding:4rem 2rem;color:var(--color-text-muted);background:var(--color-surface);border-radius:12px;border:2px dashed var(--color-border)}.form-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:2rem}.toolbar{display:flex;gap:1rem;margin-bottom:2rem}.tab-navigation{display:flex;gap:.5rem;margin-bottom:2rem;border-bottom:2px solid var(--color-border);background:var(--color-surface);padding:.5rem;border-radius:12px 12px 0 0}.tab-button{flex:1;display:flex;align-items:center;justify-content:center;gap:.5rem;padding:1rem 1.5rem;background:transparent;color:var(--color-text-secondary);border:none;border-bottom:3px solid transparent;cursor:pointer;font-weight:600;font-size:1rem;transition:all .2s;box-shadow:none;border-radius:8px}.tab-button:hover:not(:disabled){color:var(--color-text);background:#5046e514;transform:none;box-shadow:none}.tab-button.active{color:var(--color-primary);background:linear-gradient(135deg,#5046e51a,#6366f11a);border-bottom-color:var(--color-primary)}.tab-button.disabled,.tab-button:disabled{opacity:.4;cursor:not-allowed}.tab-icon{font-size:1.25rem}.tab-label{font-weight:600}.tab-content{background:var(--color-surface);border-radius:0 0 12px 12px;border:1px solid var(--color-border);border-top:none}.tab-panel{padding:2rem;animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.project-header{margin-bottom:2rem}.header-content{display:flex;flex-direction:column;gap:.5rem}.project-header h1{font-size:2.25rem;font-weight:700;color:var(--color-text);margin:0}.project-description{color:var(--color-text-secondary);font-size:1rem;margin:0}.project-stats .stat-value{font-size:1.75rem;font-weight:700;color:var(--color-primary)}.processing-container{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--color-surface);padding:3rem;border-radius:16px;box-shadow:0 20px 60px #0000004d;border:2px solid var(--color-border);z-index:1000;min-width:400px;text-align:center}.processing-content{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.processing-spinner{margin-bottom:1rem}.spinner{width:60px;height:60px;border:5px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.processing-message{font-size:1.25rem;font-weight:600;color:var(--color-text);margin:0}.progress-bar{width:100%;height:12px;background:var(--color-bg);border-radius:999px;overflow:hidden;border:1px solid var(--color-border)}.progress-fill{height:100%;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 100%);transition:width .3s ease;border-radius:999px}.progress-text{font-size:.875rem;font-weight:600;color:var(--color-text-secondary);margin:0}.sheet-selection-container{padding:1rem}.selection-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.selection-header h2{font-size:1.5rem;font-weight:700;color:var(--color-text);margin:0}.selection-controls{display:flex;gap:.75rem}.secondary-button{background:var(--color-surface);color:var(--color-text);border:2px solid var(--color-border);padding:.625rem 1.25rem;font-size:.875rem;box-shadow:none}.secondary-button:hover:not(:disabled){background:var(--color-bg);border-color:var(--color-primary);transform:none;box-shadow:none}.selection-stats{display:flex;gap:2rem;margin-bottom:1.5rem;padding:1rem 1.5rem;background:var(--color-bg);border-radius:8px;border:1px solid var(--color-border)}.stat-item{display:flex;gap:.5rem;align-items:center}.stat-label{font-weight:600;color:var(--color-text-secondary);font-size:.875rem}.stat-item .stat-value{font-weight:700;color:var(--color-primary);font-size:1.125rem}.processing-actions{display:flex;justify-content:center;margin-top:2rem}.processing-actions .process-button{min-width:300px;padding:1rem 2rem;font-size:1.125rem}.results-container{padding:1rem}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.results-header h2{font-size:1.75rem;font-weight:700;color:var(--color-text);margin:0}.view-details-button{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);box-shadow:0 2px 8px #5046e54d}.tables-preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.table-preview-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;overflow:hidden;transition:transform .2s,box-shadow .2s}.table-preview-card:hover{transform:translateY(-4px);box-shadow:0 8px 16px #0000001f}.table-image{width:100%;aspect-ratio:4/3;overflow:hidden;background:var(--color-bg)}.table-image img{width:100%;height:100%;object-fit:cover}.table-info{padding:1.25rem}.table-info h3{font-size:1.125rem;font-weight:700;color:var(--color-text);margin:0 0 .5rem}.table-info p{margin:.25rem 0;font-size:.875rem}.table-info .cost{font-weight:700;color:var(--color-primary)}.upload-header{margin-bottom:1.5rem;display:flex;justify-content:space-between;align-items:center;gap:2rem}.upload-header-content{flex:1}.upload-header h2{font-size:1.75rem;font-weight:700;color:var(--color-text);margin:0 0 .5rem}.upload-subtitle{color:var(--color-text-secondary);font-size:.95rem;margin:0}.upload-header .upload-button{flex-shrink:0;align-self:flex-start;margin-top:.25rem}.upload-label.demo-mode{border-color:var(--color-success);background:#10b9810d}.upload-hint{color:var(--color-text-muted);font-size:.875rem;margin-top:.5rem}.file-name{font-weight:600;color:var(--color-text)}.file-size{color:var(--color-text-secondary);font-size:.875rem}.remove-button{background:linear-gradient(135deg,var(--color-danger) 0%,var(--color-danger-dark) 100%);padding:.5rem 1rem;font-size:.75rem;box-shadow:0 2px 4px #ef444433}.upload-button{min-width:200px}.upload-progress{margin:1.5rem 0;padding:1.5rem;background:var(--color-surface);border-radius:12px;border:1px solid var(--color-border)}.sheet-number{font-weight:600}@media (max-width: 768px){.comparison-container{grid-template-columns:1fr}.sheets-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.stats-grid,.project-stats{grid-template-columns:1fr}.main-content{padding:2rem 1rem}.app-header .container{padding:0 1rem}.tab-navigation{flex-direction:column;gap:.25rem}.tab-button{width:100%;justify-content:flex-start}.processing-container{min-width:90%;padding:2rem}.selection-stats{flex-direction:column;gap:.75rem}.results-header{flex-direction:column;gap:1rem;align-items:flex-start}.tables-preview{grid-template-columns:1fr}}*{margin:0;padding:0;box-sizing:border-box}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;font-weight:400;--color-primary: #5046e5;--color-primary-dark: #3730a3;--color-primary-light: #6366f1;--color-success: #10b981;--color-success-dark: #059669;--color-danger: #ef4444;--color-danger-dark: #dc2626;--color-warning: #f59e0b;--color-bg: #fafafa;--color-surface: #ffffff;--color-border: #e5e7eb;--color-text: #111827;--color-text-secondary: #6b7280;--color-text-muted: #9ca3af;--color-header-bg: #0f172a;--color-header-text: #f8fafc;color:var(--color-text);background-color:var(--color-bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;color:var(--color-text);background-color:var(--color-bg);transition:background-color .3s ease,color .3s ease}body.dark-mode{--color-bg: #0f172a;--color-surface: #1e293b;--color-border: #334155;--color-text: #f1f5f9;--color-text-secondary: #cbd5e1;--color-text-muted: #94a3b8;--color-header-bg: #020617;--color-header-text: #f8fafc}body.dark-mode .stat,body.dark-mode .project-card,body.dark-mode .project-item,body.dark-mode .stat-card{background:#1e293b;border-color:#334155}body.dark-mode input,body.dark-mode textarea,body.dark-mode select{background:#1e293b;border-color:#334155;color:#f1f5f9}body.dark-mode button:not(.accept-button):not(.reject-button){background:#3730a3;color:#f1f5f9}body.dark-mode button:hover:not(.accept-button):not(.reject-button){background:#4338ca}body.dark-mode .sheet-card,body.dark-mode .table-comparison-card{background:#1e293b;border-color:#334155}#root{width:100%;min-height:100vh}