* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary: #667eea;
            --secondary: #08d2e8;
            --accent: #f093fb;
            --success: #4ade80;
            --warning: #fbbf24;
            --error: #f87171;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f9fafb;
            --white: #ffffff;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
           
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            overflow-x: hidden;
        }

        /* Animación de fondo */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 50%, rgba(240, 147, 251, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

        .main-container {
            display: flex;
            background: var(--white);
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            overflow: hidden;
            max-width: 1100px;
            width: 100%;
            position: relative;
            z-index: 1;
            animation: slideUp 0.6s ease-out;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Sección Izquierda - Información */
        .image-section {
            flex: 1;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            padding: 60px 40px;
            color: var(--white);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .image-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: float 20s infinite linear;
        }

        @keyframes float {
            0% { transform: translate(0, 0) rotate(0deg); }
            100% { transform: translate(50px, 50px) rotate(360deg); }
        }

        .image-content {
            position: relative;
            z-index: 1;
        }

        .logo-container {
            text-align: center;
            margin-bottom: 40px;
        }

        #logo_empresa {
            max-width: 120px;
            height: auto;
            border-radius: 20px;
            margin-bottom: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            animation: pulse 3s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .company-name {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: 2px;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }

        .system-title {
            font-size: 18px;
            font-weight: 300;
            opacity: 0.95;
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .features {
            margin-top: 40px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
            padding: 15px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            backdrop-filter: blur(10px);
            transition: transform 0.3s ease;
        }

        .feature-item:hover {
            transform: translateX(10px);
            background: rgba(255, 255, 255, 0.15);
        }

        .feature-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-size: 20px;
        }

        .feature-text {
            flex: 1;
        }

        .feature-title {
            font-weight: 600;
            margin-bottom: 5px;
            font-size: 16px;
        }

        .feature-desc {
            font-size: 13px;
            opacity: 0.9;
            line-height: 1.4;
        }

        .integrations {
            margin-top: 40px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }

        .integrations h4 {
            font-size: 14px;
            margin-bottom: 15px;
            opacity: 0.9;
            font-weight: 600;
        }

        .integration-icons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-block;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            backdrop-filter: blur(5px);
            transition: all 0.3s ease;
        }

        .badge:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }

        /* Sección Derecha - Login */
        .login-section {
            flex: 1;
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: var(--white);
        }

        .login-header {
            margin-bottom: 40px;
        }

        .login-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .login-subtitle {
            color: var(--text-light);
            font-size: 15px;
        }

        .mensaje {
            padding: 16px 20px;
            border-radius: 12px;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            animation: slideIn 0.3s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .mensaje.error {
            background: #fee2e2;
            color: #991b1b;
            border: 1px solid #fecaca;
        }

        .mensaje.success {
            background: #dcfce7;
            color: #166534;
            border: 1px solid #bbf7d0;
        }

        .mensaje.info {
            background: #dbeafe;
            color: #1e40af;
            border: 1px solid #bfdbfe;
        }

        .form-group {
            margin-bottom: 25px;
        }

        label {
            display: block;
            margin-bottom: 10px;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 14px;
        }

        .input-wrapper {
            position: relative;
        }

        input[type="email"],
        input[type="password"] {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            font-size: 15px;
            transition: all 0.3s ease;
            background: var(--bg-light);
        }

        input:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
        }

        input::placeholder {
            color: #9ca3af;
        }

        .input-icon {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            pointer-events: none;
        }

        button[type="submit"] {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
            margin-top: 10px;
        }

        button[type="submit"]:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
        }

        button[type="submit"]:active {
            transform: translateY(0);
        }

        .footer-links {
            text-align: center;
            margin-top: 30px;
            padding-top: 25px;
            border-top: 1px solid #e5e7eb;
        }

        .footer-links a {
            color: var(--primary);
            text-decoration: none;
            display: block;
            margin-top: 12px;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 968px) {
            .main-container {
                flex-direction: column;
            }

            .image-section {
                padding: 40px 30px;
            }

            .login-section {
                padding: 40px 30px;
            }

            .company-name {
                font-size: 32px;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 10px;
            }

            .main-container {
                border-radius: 16px;
            }

            .image-section {
                padding: 30px 20px;
            }

            .login-section {
                padding: 30px 20px;
            }

            .login-title {
                font-size: 26px;
            }

            .company-name {
                font-size: 28px;
            }
        }

        /* Accesibilidad */
        *:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
        }