:root{--color-primary: #6366f1;--color-primary-hover: #4f46e5;--color-primary-disabled: #a5b4fc;--color-background: #ffffff;--color-background-alt: #f3f4f6;--color-text: #111827;--color-text-muted: #6b7280;--color-border: #e5e7eb;--color-border-focus: #818cf8;--color-error: #ef4444;--color-error-background: #fef2f2;--color-success: #10b981;--color-success-background: #ecfdf5;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-12: 3rem;--radius-sm: .125rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-full: 9999px;--font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--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);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1)}@media (prefers-color-scheme: dark){:root{--color-background: #111827;--color-background-alt: #1f2937;--color-text: #f9fafb;--color-text-muted: #9ca3af;--color-border: #374151;--color-border-focus: #818cf8;--color-error-background: #7f1d1d;--color-success-background: #064e3b}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-background);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input{font-family:inherit}.container{width:100%;max-width:28rem;margin:0 auto;padding:var(--spacing-4)}#root{min-height:100vh;display:flex;flex-direction:column}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn var(--transition-normal) forwards}.input-group{display:flex;flex-direction:column;gap:var(--spacing-2);margin-bottom:var(--spacing-4)}.input-label{font-size:var(--font-size-sm);font-weight:500;color:var(--color-text)}.input-field{width:100%;padding:var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-background);color:var(--color-text);font-size:var(--font-size-base);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-field:focus{outline:none;border-color:var(--color-border-focus);box-shadow:0 0 0 3px #6366f133}.input-field::placeholder{color:var(--color-text-muted)}.input-field.error{border-color:var(--color-error)}.input-field.error:focus{box-shadow:0 0 0 3px #ef444433}.error-message{font-size:var(--font-size-sm);color:var(--color-error)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-3) var(--spacing-4);font-size:var(--font-size-base);font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast)}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-primary:disabled{background-color:var(--color-primary-disabled);cursor:not-allowed;transform:none}.btn-secondary{background-color:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-background-alt)}.btn-secondary:disabled{color:var(--color-text-muted);cursor:not-allowed;transform:none}