:root{--color-primary:#125134;--color-primary-hover:#0d3b25;--color-secondary:#d4c19c;--color-background:#f8f9fa;--color-surface:#fff;--color-text-main:#1a1a1a;--color-text-muted:#4a4a4a;--color-error:#d32f2f;--color-border:#e0e0e0;--font-family:"Inter", system-ui, -apple-system, sans-serif;--text-sm:1rem;--text-base:1.125rem;--text-lg:1.25rem;--text-xl:1.5rem;--text-2xl:2rem;--text-3xl:2.5rem;--spacing-sm:.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--min-tap-target:48px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--shadow-sm:0 2px 4px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 12px 24px #0000001f}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text-main);line-height:1.6;font-size:var(--text-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-image:linear-gradient(#0000004d,#0009),url(/calculadora-pensiones-imss/background.png);background-position:50%;background-repeat:no-repeat;background-size:cover;background-attachment:fixed}h1,h2,h3,h4,h5,h6{color:var(--color-primary);margin-bottom:var(--spacing-md);font-weight:700;line-height:1.2}h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-xl)}p{margin-bottom:var(--spacing-md)}.container{width:100%;max-width:600px;padding:var(--spacing-md);flex-direction:column;min-height:100vh;margin:0 auto;display:flex}.card{-webkit-backdrop-filter:blur(8px);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);background:#ffffffeb;border:1px solid #ffffff80;box-shadow:0 16px 32px #00000040}button,.btn{justify-content:center;align-items:center;gap:var(--spacing-sm);min-height:var(--min-tap-target);padding:var(--spacing-sm) var(--spacing-lg);font-family:var(--font-family);font-size:var(--text-lg);border-radius:var(--radius-md);cursor:pointer;border:none;width:100%;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--color-primary);color:#fff;box-shadow:0 4px 6px #12513433}.btn-primary:hover{background-color:var(--color-primary-hover);transform:translateY(-2px);box-shadow:0 6px 12px #1251344d}.btn-primary:active{transform:translateY(0)}.btn-secondary{color:var(--color-primary);border:2px solid var(--color-primary);background-color:#0000}.btn-secondary:hover{background-color:#1251340d}.form-group{margin-bottom:var(--spacing-lg);gap:var(--spacing-sm);flex-direction:column;display:flex}label{font-weight:600;font-size:var(--text-base);color:var(--color-text-main)}input,select{width:100%;min-height:var(--min-tap-target);padding:0 var(--spacing-md);font-family:var(--font-family);font-size:var(--text-lg);border:2px solid var(--color-border);border-radius:var(--radius-sm);background-color:var(--color-surface);color:var(--color-text-main);transition:border-color .2s}input:focus,select:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #1251341a}.text-center{text-align:center}.text-muted{color:var(--color-text-muted);font-size:var(--text-sm)}.text-primary{color:var(--color-primary)}.fade-in{animation:.4s ease-out forwards fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.app-header{text-align:center;margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-md);border-bottom:2px solid var(--color-secondary)}.app-logo{color:var(--color-primary);margin-bottom:var(--spacing-sm);display:inline-block}