:root{--font-sans: "Outfit", system-ui, -apple-system, sans-serif;--color-primary: #4f46e5;--color-primary-light: #818cf8;--color-primary-dark: #3730a3;--color-primary-bg: #eef2ff;--color-bg: #f8fafc;--color-surface: #ffffff;--color-text-main: #0f172a;--color-text-muted: #64748b;--color-border: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text-main);line-height:1.5;-webkit-font-smoothing:antialiased}button{cursor:pointer;font-family:inherit}.container{max-width:1024px;margin:0 auto;padding:0 1.5rem}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:.5rem}.gap-4{gap:1rem}.text-center{text-align:center}.w-full{width:100%}.mt-1{margin-top:.25rem}.mt-8{margin-top:2rem}.mb-4{margin-bottom:1rem}.mb-8{margin-bottom:2rem}.font-medium{font-weight:500}.text-sm{font-size:.875rem}.text-muted{color:var(--color-text-muted)}.app-header{background-color:#fffc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:50}.header-content{height:4rem;display:flex;align-items:center;justify-content:space-between}.logo-box{width:2rem;height:2rem;background-color:var(--color-primary);color:#fff;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 6px -1px #4f46e54d}.app-title{font-weight:700;font-size:1.25rem;letter-spacing:-.025em;color:var(--color-text-main)}.text-primary{color:var(--color-primary)}.step-nav{display:flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:500;color:var(--color-text-muted)}.step-item{padding:.25rem .75rem;border-radius:var(--radius-full);transition:all .2s}.step-item.active{background-color:var(--color-primary-bg);color:var(--color-primary)}.main-content{padding:3rem 0}.hero-section{max-width:42rem;margin:0 auto}.hero-title{font-size:2.25rem;font-weight:700;margin-bottom:.5rem}.hero-subtitle{font-size:1.125rem;color:var(--color-text-muted);margin-bottom:2rem}.upload-card{padding:2rem;border:2px dashed var(--color-border);border-radius:var(--radius-xl);background-color:var(--color-surface);transition:all .2s;cursor:pointer;flex:1}.upload-card:hover{border-color:var(--color-primary-light);transform:translateY(-2px);box-shadow:var(--shadow-md)}.icon-circle{width:4rem;height:4rem;background-color:var(--color-primary-bg);color:var(--color-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;transition:transform .2s}.upload-card:hover .icon-circle{transform:scale(1.1)}.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.1)}