.navbar{background:var(--surface);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow);position:sticky;top:0;z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2}.navbar-container{max-width:1400px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.navbar-brand{display:flex;align-items:center}.brand-link{font-size:1.5rem;font-weight:700;color:var(--text-primary);text-decoration:none;background:linear-gradient(135deg,var(--accent-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;transition:all .3s ease;letter-spacing:-.02em}.brand-link:hover{transform:scale(1.05)}.navbar-links{display:flex;gap:2rem;align-items:center}.nav-link{color:var(--text-primary);text-decoration:none;font-weight:500;font-size:.95rem;transition:all .2s ease;position:relative;padding:.5rem 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1rem;background:transparent;color:var(--accent-color);border:1px solid var(--accent-color);border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.add-card-button:hover{background:var(--accent-color);color:#fff}.card-form-block{background:var(--neutral-light);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem;margin-bottom:1.5rem}.card-form-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:1px solid var(--border-color)}.card-form-header h5{margin:0;font-size:1rem;font-weight:600;color:var(--text-primary)}.remove-card-button{padding:.375rem .75rem;background:transparent;color:var(--error-color);border:1px solid var(--error-color);border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.remove-card-button:hover{background:var(--error-color);color:#fff}.steps-card-newsletter{background:var(--surface);border-radius:16px;padding:2.5rem;border:1px solid var(--border-color);box-shadow:var(--shadow);height:fit-content;position:sticky;top:100px}.steps-card-newsletter h4{margin:0 0 2rem;color:var(--text-primary);font-size:1.5rem;font-weight:600;display:flex;align-items:center;gap:.5rem}.steps-card-newsletter h4:before{content:"";width:4px;height:24px;background:linear-gradient(135deg,var(--accent-color),var(--secondary-color));border-radius:2px}.steps-list-newsletter{display:flex;flex-direction:column;gap:1.75rem}.step-item-newsletter{display:flex;gap:1rem;align-items:flex-start}.step-number-newsletter{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent-color),var(--secondary-color));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;flex-shrink:0;box-shadow:0 2px 8px #8b5cf64d}.step-content-newsletter{flex:1;padding-top:.25rem}.step-content-newsletter strong{display:block;color:var(--text-primary);font-size:1.1rem;font-weight:600;margin-bottom:.5rem}.step-content-newsletter p{margin:0;color:var(--text-secondary);font-size:.95rem;line-height:1.6}@media (max-width: 968px){.subscribe-section{grid-template-columns:1fr}}.message{margin-top:1rem;padding:1rem;border-radius:6px;font-weight:500}.message.success{background:#22c55e1a;color:var(--success-color);border:1px solid var(--success-color)}.message.error{background:#dc26261a;color:var(--error-color);border:1px solid var(--error-color)}@media (max-width: 768px){.newsletter-section{padding:3rem 1.5rem}.newsletter-section h2{font-size:1.75rem}.form-row{grid-template-columns:1fr}.newsletter-form .form-group{flex-direction:column}.email-input{margin-right:0;margin-bottom:1rem}}.app{min-height:100vh;display:flex;flex-direction:column;background:var(--background)}.app-header{background:linear-gradient(135deg,var(--neutral-light) 0%,var(--surface) 100%);padding:4rem 2rem 3rem;text-align:center;position:relative;overflow:hidden;border-bottom:1px solid var(--border-color)}.app-header:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 50%,rgba(139,92,246,.05) 0%,transparent 50%),radial-gradient(circle at 80% 50%,rgba(59,130,246,.05) 0%,transparent 50%);pointer-events:none}.header-content{position:relative;z-index:1;max-width:900px;margin:0 auto}.app-header h1{font-size:2.75rem;margin-bottom:1rem;font-weight:700;letter-spacing:-.02em;color:var(--text-primary);line-height:1.2;min-height:3.5rem}.app-header h1 .highlight{background:linear-gradient(135deg,var(--accent-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800;position:relative}.app-header p{font-size:1.125rem;color:var(--text-secondary);font-weight:400;line-height:1.7;max-width:700px;margin:0 auto}.app-main{flex:1;padding:3rem 2rem}.upload-section-main{min-height:400px}.results-section{margin-top:2rem}.app-footer{margin-top:4rem;background:var(--surface);border-top:1px solid var(--border-color)}.footer-bottom{padding:2rem;background:var(--neutral-light);border-top:1px solid var(--border-color);text-align:center}.footer-bottom p{margin:.5rem 0;color:var(--text-secondary);font-size:.875rem}.footer-note{font-size:.8125rem!important;opacity:.8}.container{max-width:1400px;margin:0 auto}@media (max-width: 768px){.app-header{padding:3rem 1.5rem 2rem}.app-header h1{font-size:1.875rem}.app-header p{font-size:1rem}.app-main{padding:1.5rem 1rem}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #0F172A;--primary-hover: #1e293b;--secondary-color: #3B82F6;--secondary-hover: #2563eb;--accent-color: #8B5CF6;--accent-hover: #7c3aed;--success-color: #22C55E;--warning-color: #EAB308;--error-color: #DC2626;--neutral-dark: #334155;--neutral-mid: #94A3B8;--neutral-light: #F8FAFC;--background: #F8FAFC;--surface: #ffffff;--text-primary: #0F172A;--text-secondary: #334155;--border-color: #e2e8f0;--shadow: 0 1px 3px 0 rgba(15, 23, 42, .1), 0 1px 2px -1px rgba(15, 23, 42, .1);--shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .1), 0 4px 6px -4px rgba(15, 23, 42, .1);--shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, .1), 0 8px 10px -6px rgba(15, 23, 42, .1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background);color:var(--text-primary);line-height:1.6}#root{min-height:100vh}html{scroll-behavior:smooth;scroll-padding-top:80px}