:root{--color-bg:#f8fafc;--color-bg-card:#fff;--color-text:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--color-border:#e2e8f0;--color-primary:#6366f1;--color-primary-hover:#4f46e5;--color-success:#22c55e;--color-warning:#f59e0b;--color-danger:#ef4444;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body,html{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased}body{min-height:100vh;min-height:100dvh}a{color:inherit;text-decoration:none}button{cursor:pointer}button,input{font-family:inherit}.container{width:100%;max-width:600px;margin:0 auto;padding:0 var(--space-md)}.card{background:var(--color-bg-card);border-radius:var(--radius-lg);border:1px solid var(--color-border);padding:var(--space-md);margin-bottom:var(--space-md)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-size:14px;font-weight:500;border:none;transition:background-color .2s}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.input{width:100%;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:16px;background:var(--color-bg-card);transition:border-color .2s}.input:focus{outline:none;border-color:var(--color-primary)}.label{display:block;font-size:14px;font-weight:500;color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.page-with-nav{padding-bottom:80px}.page-header{padding:var(--space-lg) 0 var(--space-md)}.page-title{font-size:24px;font-weight:600;color:var(--color-text)}.page-subtitle{font-size:14px;color:var(--color-text-secondary);margin-top:var(--space-xs)}.empty-state{text-align:center;padding:var(--space-xl);color:var(--color-text-muted)}