:root{--color-primary: #0f172a;--color-primary-light: #334155;--color-accent: #3b82f6;--color-background: #f8fafc;--color-surface: #ffffff;--color-text: #1e293b;--color-text-muted: #64748b;--color-success: #10b981;--color-danger: #ef4444;--color-warning: #f59e0b;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--radius-md: .5rem;--radius-lg: .75rem;--radius-full: 9999px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:radial-gradient(circle at top right,#e2e8f0,#f8fafc 40%,#f1f5f9);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh}button{cursor:pointer;font-family:inherit;transition:all .2s cubic-bezier(.4,0,.2,1)}.container{max-width:480px;margin:0 auto;padding:1.5rem;width:100%;min-height:100vh;display:flex;flex-direction:column}.btn-primary{background:linear-gradient(135deg,var(--color-primary) 0%,#1e3a8a 100%);color:#fff;padding:.875rem 1.5rem;border-radius:var(--radius-lg);border:none;font-weight:600;width:100%;box-shadow:0 4px 6px -1px #0f172a33,0 2px 4px -1px #0f172a1a;letter-spacing:.025em}.btn-primary:active{transform:scale(.98);box-shadow:inset 0 2px 4px #0000000d}.input-field{width:100%;padding:.875rem 1rem;border:1px solid #cbd5e1;border-radius:var(--radius-lg);font-size:1rem;margin-bottom:1rem;transition:all .2s;background-color:#fffc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.input-field:focus{outline:none;border-color:var(--color-accent);background-color:#fff;box-shadow:0 0 0 4px #3b82f626}