<!DOCTYPE html> <html lang="es"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Registro de Ventas</title> <style> body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;...
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<!DOCTYPE html> <html lang="es"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Registro de Ventas</title> <style> body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f7f6; margin: 0; padding: 20px; display: flex; justify-content: center; } .container { width: 100%; max-width: 800px; background: #ffffff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); } h2 { text-align: center; color: #333; margin-bottom: 25px; } .form-group { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 15px; align-items: end; margin-bottom: 30px; } @media (max-width: 600px) { .form-group { grid-template-columns: 1fr; } } label { display: block; font-weight: 600; margin-bottom: 5px; color: #555; } input { width: 100%; padding: 10px; box-sizing: border-box; border: 1px solid #ccc; border-radius: 4px; font-size: 14px; } button { background-color: #28a745; color: white; border: non
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